10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

x	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)
	OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2012

OR

o	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)
	OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from _______ to ______

Commission file number 1-10804

XL GROUP

Public Limited Company

(Exact name of registrant as specified in its charter)

Ireland	98-0665416
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

No. 1 Hatch Street Upper, 4^th Floor, Dublin 2, Ireland
(Address of principal executive offices and zip code)
+353 (1) 405-2033
(Registrant’s telephone number, including area code)

          Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x No o

          Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes x No o

          Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See the definitions of “large accelerated filer” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer x Accelerated filer o Non-accelerated filer o Smaller reporting company o

          Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o No x

          As of August 6, 2012, there were 305,705,727 outstanding Ordinary Shares, $0.01 par value per share, of the registrant.

XL GROUP PLC

INDEX TO FORM 10-Q

		Page No.
	PART I—FINANCIAL INFORMATION
Item 1.	Financial Statements:
	Unaudited Consolidated Balance Sheets at June 30, 2012 and December 31, 2011	1
	Unaudited Consolidated Statements of Income for the Three and Six Months Ended June 30, 2012 and 2011	2
	Unaudited Consolidated Statements of Comprehensive Income for the Three and Six Months Ended June 30, 2012 and 2011	3
	Unaudited Consolidated Statements of Shareholders’ Equity for the Six Months Ended June 30, 2012 and 2011	4
	Unaudited Consolidated Statements of Cash Flows for the Six Months Ended June 30, 2012 and 2011	5
	Notes to Unaudited Consolidated Financial Statements	6
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	41
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	80
Item 4.	Controls and Procedures	88
	PART II—OTHER INFORMATION
Item 1.	Legal Proceedings	89
Item 1A.	Risk Factors	90
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	90
Item 6.	Exhibits	91
	Signatures	92

PART I – FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

XL GROUP PLC

UNAUDITED CONSOLIDATED BALANCE SHEETS

(U.S. dollars in thousands, except share data)	June 30, 2012		December 31, 2011
ASSETS
Investments:
Fixed maturities, at fair value (amortized cost: 2012: $25,442,779; 2011: $25,771,715)	$	26,242,802	$	26,190,025
Equity securities, at fair value (cost: 2012: $553,715; 2011: $480,685)		529,056		468,197
Short-term investments, at fair value (amortized cost: 2012: $227,321; 2011: $359,378)		227,380		359,063
Total investments available for sale	$	26,999,238	$	27,017,285
Fixed maturities, held to maturity at amortized cost (fair value: 2012: $3,006,992; 2011: $2,895,688)		2,716,357		2,668,978
Investments in affiliates		1,024,353		1,052,729
Other investments		1,208,220		985,262
Total investments	$	31,948,168	$	31,724,254
Cash and cash equivalents		3,311,146		3,825,125
Accrued investment income		323,898		331,758
Deferred acquisition costs		723,597		647,113
Ceded unearned premiums		744,548		596,895
Premiums receivable		3,107,931		2,411,611
Reinsurance balances receivable		223,187		220,017
Unpaid losses and loss expenses recoverable		3,342,628		3,654,948
Receivable from investments sold		57,549		59,727
Goodwill and other intangible assets		405,516		407,321
Deferred tax asset		132,508		115,601
Other assets		619,480		670,895
Total assets	$	44,940,156	$	44,665,265
LIABILITIES AND SHAREHOLDERS’ EQUITY
Liabilities:
Unpaid losses and loss expenses	$	19,961,950	$	20,613,901
Deposit liabilities		1,600,595		1,608,108
Future policy benefit reserves		4,740,907		4,845,394
Unearned premiums		4,231,975		3,555,310
Notes payable and debt		1,673,921		2,275,327
Reinsurance balances payable		516,886		90,552
Payable for investments purchased		51,683		58,494
Deferred tax liability		154,497		91,104
Other liabilities		793,940		770,945
Total liabilities	$	33,726,354	$	33,909,135
Commitments and Contingencies
Shareholders’ Equity:
Ordinary shares, 999,990,000 authorized, par value $0.01; issued and outstanding: (2012: 305,692,155; 2011: 315,645,796)	$	3,057	$	3,156
Additional paid in capital		8,738,204		8,938,679
Accumulated other comprehensive income		910,760		583,064
Retained earnings (deficit)		215,788		(113,241	)
Shareholders’ equity attributable to XL Group plc	$	9,867,809	$	9,411,658
Non-controlling interest in equity of consolidated subsidiaries		1,345,993		1,344,472
Total shareholders’ equity	$	11,213,802	$	10,756,130
Total liabilities and shareholders’ equity	$	44,940,156	$	44,665,265

See accompanying Notes to Unaudited Consolidated Financial Statements

1

XL GROUP PLC

UNAUDITED CONSOLIDATED STATEMENTS OF INCOME

	Three Months Ended June 30,						Six Months Ended June 30,
(U.S. dollars in thousands, except per share data)	2012			2011			2012			2011
Revenues:
Net premiums earned	$	1,486,595		$	1,398,339		$	2,923,013		$	2,759,722
Net investment income		262,631			296,505			527,873			576,768
Realized investment gains (losses):
Net realized gains (losses) on investments sold		15,800			17,632			57,568			(11,360	)
Other-than-temporary impairments on investments		(16,168	)		(40,088	)		(34,733	)		(73,808	)
Other-than-temporary impairments on investments transferred to (from) other comprehensive income		(12,025	)		12,912			(14,425	)		9,187
Total net realized gains (losses) on investments	$	(12,393	)	$	(9,544	)	$	8,410		$	(75,981	)
Net realized and unrealized gains (losses) on derivative instruments		(4,300	)		(10,950	)		(3,598	)		(7,383	)
Income (loss) from investment fund affiliates		3,097			10,250			22,505			37,400
Fee income and other		11,109			10,582			20,968			19,514
Total revenues	$	1,746,739		$	1,695,182		$	3,499,171		$	3,310,040
Expenses:
Net losses and loss expenses incurred	$	826,355		$	823,584		$	1,680,420		$	2,032,449
Claims and policy benefits		131,150			137,416			252,457			270,647
Acquisition costs		218,937			215,099			443,088			403,589
Operating expenses		299,052			266,142			581,463			527,134
Exchange (gains) losses		(17,976	)		(8,498	)		(5,258	)		1,016
Interest expense		57,360			55,099			96,658			109,246
Total expenses	$	1,514,878		$	1,488,842		$	3,048,828		$	3,344,081
Income (loss) before income tax and income (loss) from operating affiliates	$	231,861		$	206,340		$	450,343		$	(34,041	)
Income (loss) from operating affiliates		22,561			46,251			38,814			59,887
Provision (benefit) for income tax		29,812			24,826			51,362			(7,971	)
Net income (loss)	$	224,610		$	227,765		$	437,795		$	33,817
Non-controlling interests		(3,454	)		(2,102	)		(40,011	)		(35,438	)
Net income (loss) attributable to XL Group plc and ordinary shareholders	$	221,156		$	225,663		$	397,784		$	(1,621	)
Weighted average ordinary shares and ordinary share equivalents outstanding – basic		309,765			309,184			312,442			310,325
Weighted average ordinary shares and ordinary share equivalents outstanding – diluted		312,435			341,989			315,010			310,325
Earnings (loss) per ordinary share and ordinary share equivalent – basic	$	0.71		$	0.73		$	1.27		$	(0.01	)
Earnings (loss) per ordinary share and ordinary share equivalent – diluted	$	0.71		$	0.69		$	1.26		$	(0.01	)

See accompanying Notes to Unaudited Consolidated Financial Statements

2

XL GROUP PLC

UNAUDITED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

	Three Months Ended June 30,						Six Months Ended June 30,
(U.S. dollars in thousands)	2012			2011			2012			2011
Net income (loss) attributable to XL Group plc	$	221,156		$	225,663		$	397,784		$	(1,621	)
Change in net unrealized gains (losses) on investments, net of tax		109,333			167,827			321,657			181,206
Change in net unrealized gains (losses) on affiliate and other investments, net of tax		1,333			8,431			16,383			32,666
Change in OTTI losses recognized in other comprehensive income, net of tax		13,996			(1,183	)		26,417			24,124
Change in underfunded pension liability		167			(53	)		(7	)		(397	)
Change in value of cash flow hedge		110			110			220			220
Foreign currency translation adjustments		(45,695	)		72,741			(36,974	)		84,357
Comprehensive income (loss)	$	300,400		$	473,536		$	725,480		$	320,555

See accompanying Notes to Unaudited Consolidated Financial Statements

3

XL GROUP PLC

UNAUDITED CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY

	Six Months Ended June 30,
(U.S. dollars in thousands)	2012			2011
Ordinary Shares:
Balance - beginning of year	$	3,156		$	3,165
Issuance of ordinary shares		9			3
Buybacks of ordinary shares		(109	)		(116	)
Exercise of stock options		1			-
Balance - end of period	$	3,057		$	3,052
Additional Paid in Capital:
Balance - beginning of year	$	8,938,679		$	8,993,016
Issuance of ordinary shares		1,376			976
Buybacks of ordinary shares		(225,869	)		(258,787	)
Exercise of stock options, net of tax		1,349			1,087
Share based compensation expense		22,669			20,008
Balance - end of period	$	8,738,204		$	8,756,300
Accumulated Other Comprehensive Income (Loss):
Balance - beginning of year	$	583,064		$	100,795
Change in net unrealized gains (losses) on investments, net of tax		321,657			181,206
Change in net unrealized gains (losses) on affiliate and investments, net of tax		16,383			32,666
Change in OTTI losses recognized in other comprehensive income, net of tax		26,417			24,124
Change in underfunded pension liability		(7	)		(397	)
Change in value of cash flow hedge		220			220
Foreign currency translation adjustments		(36,974	)		84,357
Balance - end of period	$	910,760		$	422,971
Retained Earnings (Deficit):
Balance - beginning of year	$	(113,241	)	$	500,497
Net income attributable to XL Group plc		397,784			(1,621	)
Dividends on ordinary shares		(68,755	)		(68,529	)
Balance - end of period	$	215,788		$	430,347
Non-controlling Interest in Equity of Consolidated Subsidiaries:
Balance - beginning of year	$	1,344,472		$	1,002,296
Non-controlling interests - contribution		1,500			-
Non-controlling interests		(12	)		1
Non-controlling interest share in change in accumulated other comprehensive income (loss)		33			(16	)
Purchase of Series E preference ordinary shares		-			(500	)
Balance - end of period	$	1,345,993		$	1,001,781
Total Shareholders’ Equity	$	11,213,802		$	10,614,451

See accompanying Notes to Unaudited Consolidated Financial Statements

4

XL GROUP PLC

UNAUDITED CONSOLIDATED STATEMENTS OF CASH FLOWS

	Six Months Ended June 30,
(U.S. dollars in thousands)	2012			2011
Cash flows provided by (used in) operating activities:
Net income (loss)	$	437,795		$	33,817
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Net realized (gains) losses on investments		(8,410	)		75,981
Net realized and unrealized (gains) losses on derivative instruments		3,598			7,383
Amortization of premiums (discounts) on fixed maturities		75,240			42,939
(Income) loss from investment and operating affiliates		(61,319	)		(97,287	)
Share based compensation		27,795			22,872
Depreciation		27,479			24,248
Accretion of deposit liabilities		49,852			40,281
Unpaid losses and loss expenses		(531,503	)		67,088
Future policy benefit reserves		(88,679	)		(61,147	)
Unearned premiums		718,750			622,665
Premiums receivable		(739,817	)		(652,203	)
Unpaid losses and loss expenses recoverable		300,429			57,390
Ceded unearned premiums		(153,792	)		(184,010	)
Reinsurance balances receivable		(4,959	)		37,536
Deferred acquisition costs		(60,901	)		(79,060	)
Reinsurance balances payable		427,573			279,074
Deferred tax asset - net		22,328			(51,297	)
Derivatives		28,383			(46,619	)
Other assets		26,077			38,458
Other liabilities		17,389			(95,299	)
Other		(29,712	)		24,517
Total adjustments	$	45,801		$	73,510
Net cash provided by (used in) operating activities	$	483,596		$	107,327
Cash flows provided by (used in) investing activities:
Proceeds from sale of fixed maturities and short-term investments	$	1,972,342		$	2,489,705
Proceeds from redemption of fixed maturities and short-term investments		2,280,398			1,325,898
Proceeds from sale of equity securities		123,181			157,727
Purchases of fixed maturities and short-term investments		(4,093,947	)		(3,527,609	)
Purchases of equity securities		(197,653	)		(381,918	)
Net dispositions of investment affiliates		38,437			11,684
Other investments, net		(128,281	)		8,877
Net cash provided by (used in) investing activities	$	(5,523	)	$	84,364
Cash flows provided by (used in) financing activities:
Proceeds from issuance of ordinary shares and exercise of stock options	$	1,214		$	1,089
Buybacks of ordinary shares		(225,978	)		(258,903	)
Dividends paid on ordinary shares		(68,315	)		(68,073	)
Distributions to non-controlling interests		(39,930	)		(35,599	)
Contribution from non-controlling interest		1,500			-
Repayment of debt		(600,000	)		-
Deposit liabilities		(56,910	)		(52,565	)
Net cash provided by (used in) financing activities	$	(988,419	)	$	(414,051	)
Effects of exchange rate changes on foreign currency cash		(3,633	)		58,834
Increase (decrease) in cash and cash equivalents	$	(513,979	)	$	(163,526	)
Cash and cash equivalents - beginning of period		3,825,125			3,022,868
Cash and cash equivalents - end of period	$	3,311,146		$	2,859,342

See accompanying Notes to Unaudited Consolidated Financial Statements

5

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

1. Basis of Preparation and Consolidation

          Unless the context otherwise indicates, references herein to the “Company” include XL Group plc and its consolidated subsidiaries.

          These unaudited consolidated financial statements include the accounts of the Company and all of its subsidiaries and have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and disclosures required by GAAP for complete financial statements. In addition, the year-end balance sheet data were derived from audited financial statements but do not include all disclosures required by GAAP. In the opinion of management, these unaudited financial statements reflect all adjustments (consisting of normal recurring accruals) considered necessary for a fair statement of financial position and results of operations at the end of and for the periods presented. The results of operations for any interim period are not necessarily indicative of the results for a full year. All inter-company accounts and transactions have been eliminated. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from these estimates.

          To facilitate period-to-period comparisons, certain reclassifications have been made to prior period consolidated financial statement amounts to conform to current period presentation.

2. Significant Accounting Policies

Recent Accounting Pronouncements

          In October 2010, the FASB issued an accounting standards update to address disparities in practice regarding the interpretation of which costs relating to the acquisition of new and renewal insurance contracts qualify for deferral. The provisions of the guidance specify that only costs that are related directly to the successful acquisition of new and renewal insurance contracts may be capitalized. These include incremental direct costs of contract acquisition and certain other costs related directly to underwriting activities. Incremental direct costs of contract acquisition are those that result directly from and are essential to a contract transaction, and would not have been incurred by the insurance entity had the transaction not occurred. Administrative costs, rent, depreciation, occupancy, equipment and all other general overhead costs are considered indirect costs and should be charged to expense as incurred. On January 1, 2012, the Company adopted this guidance on a retrospective basis for all fiscal years presented, and interim periods within those years. The impact of adoption was a reduction in deferred acquisition costs of approximately $21 million, a reduction in deferred tax liabilities of approximately $7 million, and a corresponding reduction in opening retained earnings of approximately $14 million within the Company’s December 31, 2011 balance sheet. The adoption of this guidance did not have an impact on the Company’s consolidated statements of income or comprehensive income.

          In May 2011, the FASB issued an accounting standards update to amend existing requirements for fair value measurements and disclosures. The guidance expands the disclosure requirements around fair value measurements categorized in Level 3 of the fair value hierarchy, requiring quantitative and qualitative information to be disclosed related to: (1) the valuation processes used, (2) the sensitivity of the fair value measurement to changes in unobservable inputs and the interrelationships between those unobservable inputs, and (3) use of a nonfinancial asset in a way that differs from the asset’s highest and best use. The guidance requires disclosure of the level in the fair value hierarchy of items that are not measured at fair value, but whose fair value must be disclosed. It also clarifies and expands upon existing requirements for fair value measurements of financial assets and liabilities, as well as instruments classified in shareholders’ equity. The Company has adopted this guidance from January 1, 2012; however, it impacted disclosure only and did not have an impact on the Company’s financial condition or results of operations. See Note 3, “Fair Value Measurements,” for these updated disclosures.

6

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

2. Significant Accounting Policies

          In June 2011, the FASB issued an accounting standards update concerning the presentation of comprehensive income in financial statements. This guidance allows an entity the option to present the total of comprehensive income, the components of net income, and the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements. Under both options, an entity is required to present each component of net income along with total net income, each component of other comprehensive income along with a total for other comprehensive income, and a total amount for comprehensive income. This guidance eliminates the option to present the components of other comprehensive income only as part of the statement of changes in shareholders’ equity. The guidance does not change the items that must be reported in other comprehensive income or when an item of other comprehensive income must be reclassified to net income. However, a separate accounting standards update issued in December 2011deferred indefinitely a provision within the original standard requiring entities to present components of reclassifications of other comprehensive income on the face of the income statement. The Company adopted the guidance from January 1, 2012; however, it did not have an impact on the Company’s disclosure, financial condition or results of operations.

          In September 2011, the FASB issued an accounting standards update to simplify how entities test goodwill for impairment, by allowing an entity the option to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting entity is less than its carrying amount, as a basis for determining whether it is necessary to perform the two-step goodwill impairment test required in FASB Accounting Standards Codification Topic 350. After assessing the circumstances that should be considered in making the qualitative assessment, if an entity determines that the fair value of a reporting unit as compared to its carrying value meets the threshold, then performing the two-step impairment step is unnecessary. In other circumstances, performance of the two-step test is required. The guidance also eliminates the option for an entity to carry forward its detailed calculation of a reporting unit’s fair value in certain situations. The amendments do not change the current guidance for testing other indefinite-lived intangible assets for impairment. The Company adopted this guidance from January 1, 2012. It did not have an impact on the Company’s consolidated financial condition or results of operations.

3. Fair Value Measurements

          Fair value is defined as the amount that would be received for the sale of an asset or paid to transfer a liability (an exit price), in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants as of the measurement date. Applicable accounting guidance provides an established hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. Observable inputs are inputs that market participants would use in valuing the asset or liability and are developed based on market data obtained from sources independent of the Company. Unobservable inputs are inputs that reflect the Company’s assumptions about the factors that market participants would use in valuing the asset or liability. Assets and liabilities are classified based on the lowest level of input that is significant to the fair value measurements. The Company reviews the fair value hierarchy classification on a quarterly basis. Changes in the observability of valuation inputs may result in a reclassification of levels for certain securities within the fair value hierarchy.

          The fair values for available for sale investments are generally sourced from third parties. The fair value of fixed income securities is based upon quoted market values where available, “evaluated bid” prices provided by third party pricing services (“pricing services”) where quoted market values are not available, or by reference to broker quotes where pricing services do not provide coverage for a particular security. While the Company receives values for the majority of the investment securities it holds from pricing services, it is ultimately management’s responsibility to determine whether the values received and recorded in the financial statements are representative of appropriate fair value measurements.

          The Company performs regular reviews of the prices received from its third party valuation sources to assess if the prices represent a reasonable estimate of the fair value. This process is completed by investment and accounting personnel who are independent of those responsible for obtaining the valuations. The approaches taken by the Company include, but are not limited to, annual reviews of the controls of the external parties responsible for sourcing valuations, which are subjected to automated tolerance checks, quarterly reviews of the valuation sources and dates, and monthly reconciliations between the valuations provided by our external parties and valuations provided by our third party investment managers at a portfolio level.

7

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

3. Fair Value Measurements

          Where broker quotes are the primary source of the valuations, sufficient information regarding the specific inputs utilized by the brokers is generally not available to support a Level 2 classification. The Company obtains the majority of broker quoted values from third party investment managers who perform independent verifications of these valuations using pricing matrices based upon information gathered by market traders. In addition, for the majority of these securities, the Company compares the broker quotes to independent valuations obtained from third party pricing vendors, which may also consist of broker quotes, to assess if the prices received represent a reasonable estimate of the fair value.

          For further information, see Item 8, Note 2, “Significant Accounting Policies,” to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011.

(a) Fair Value Summary

          The following tables set forth the Company’s assets and liabilities that were accounted for at fair value at June 30, 2012 and December 31, 2011 by level within the fair value hierarchy:

June 30, 2012 (U.S. dollars in thousands)	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)		Collateral and Counterparty Netting			Balance at June 30, 2012
Assets
U.S. Government and Government - Related/Supported	$	-	$	2,101,625	$	-	$	-		$	2,101,625
Corporate (1) (2)		-		9,687,642		33,511		-			9,721,153
Residential mortgage-backed securities – Agency (“RMBS - Agency”)		-		5,149,725		52,588		-			5,202,313
Residential mortgage-backed securities – Non-Agency (“RMBS - Non-Agency”)		-		582,947		1,596		-			584,543
Commercial mortgage-backed securities (“CMBS”)		-		904,792		-		-			904,792
Collateralized debt obligations (“CDO”)		-		7,839		642,179		-			650,018
Other asset-backed securities (2)		-		1,382,490		25,248		-			1,407,738
U.S. States and political subdivisions of the States		-		1,764,431		-		-			1,764,431
Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported		-		3,906,189		-		-			3,906,189
Total fixed maturities, at fair value	$	-	$	25,487,680	$	755,122	$	-		$	26,242,802
Equity securities, at fair value (3)		273,427		255,629		-		-			529,056
Short-term investments, at fair value (1)(4)		-		227,380		-		-			227,380
Total investments available for sale	$	273,427	$	25,970,689	$	755,122	$	-		$	26,999,238
Cash equivalents (5)		1,750,569		710,712		-		-			2,461,281
Other investments (6)		-		776,438		117,765		-			894,203
Other assets (7)		-		178,104		-		(124,674	)		53,430
Total assets accounted for at fair value	$	2,023,996	$	27,635,943	$	872,887	$	(124,674	)	$	30,408,152
Liabilities
Financial instruments sold, but not yet purchased (8)	$	-	$	28,198	$	-	$	-		$	28,198
Other liabilities (7)		-		10,578		35,947		-			46,525
Total liabilities accounted for at fair value	$	-	$	38,776	$	35,947	$	-		$	74,723

8

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

3. Fair Value Measurements

December 31, 2011 (U.S. dollars in thousands)	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)		Collateral and Counterparty Netting			Balance at December 31, 2011
Assets
U.S. Government and Government - Related/Supported	$	-	$	1,990,983	$	-	$	-		$	1,990,983
Corporate (1) (2)		-		10,084,804		23,818		-			10,108,622
RMBS – Agency		-		5,347,365		32,041		-			5,379,406
RMBS – Non-Agency		-		641,815		-		-			641,815
CMBS		-		974,835		-		-			974,835
CDO		-		7,751		650,851		-			658,602
Other asset-backed securities (2)		-		1,323,697		16,552		-			1,340,249
U.S. States and political subdivisions of the States		-		1,797,378		-		-			1,797,378
Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported		-		3,298,135		-		-			3,298,135
Total fixed maturities, at fair value (2)	$	-	$	25,466,763	$	723,262	$	-		$	26,190,025
Equity securities, at fair value (3)		239,175		229,022		-		-			468,197
Short-term investments, at fair value (1)(4)		-		359,063		-		-			359,063
Total investments available for sale	$	239,175	$	26,054,848	$	723,262	$	-		$	27,017,285
Cash equivalents (5)		1,686,101		1,068,264		-		-			2,754,365
Other investments (6)		-		547,598		113,959		-			661,557
Other assets (7)		-		143,622		-		(77,888	)		65,734
Total assets accounted for at fair value	$	1,925,276	$	27,814,332	$	837,221	$	(77,888	)	$	30,498,941
Liabilities
Financial instruments sold, but not yet purchased (8)	$	-	$	20,844	$	-	$	-		$	20,844
Other liabilities (7)		-		16,871		42,644		(809	)		58,706
Total liabilities accounted for at fair value	$	-	$	37,715	$	42,644	$	(809	)	$	79,550

(1)	Included within Corporate are certain medium term notes supported primarily by pools of European investment grade credit with varying degrees of leverage. The notes, which are in a gross unrealized loss position, had a fair value of $186.1 million and $266.0 million and an amortized cost of $199.1 million and $297.7 million at June 30, 2012 and December 31, 2011, respectively. These notes allow the investor to participate in cash flows of the underlying bonds including certain residual values, which could serve to either decrease or increase the ultimate values of these notes.
(2)	The Company invests in covered bonds issued by financial institutions (“Covered Bonds”). Covered Bonds are senior secured debt instruments issued by financial institutions and backed by over-collateralized pools of public sector or mortgage loans. At June 30, 2012, Covered Bonds within Total fixed maturities with a fair value of $500.5 million are included within Other asset-backed securities to align the Company’s classification to market indices. At December 31, 2011, Covered Bonds within Total fixed maturities with a fair value of $353.9 million were reclassified from Corporate to Other asset-backed securities to conform to current period presentation.
(3)	Included within Equity securities are investments in fixed income funds with a fair value of $95.8 million and $91.6 million at June 30, 2012 and December 31, 2011, respectively.
(4)	Short-term investments consist primarily of Corporate securities and U.S. Government and Government-Related/Supported securities.
(5)	Cash equivalents balances subject to fair value measurement include certificates of deposit and money market funds. Operating cash balances are not subject to fair value measurement guidance.
(6)	The Other investments balance excludes certain structured transactions including certain investments in project finance transactions, a payment obligation and liquidity financing provided to a structured credit vehicle as a part of a third party medium term note facility. These investments that totaled $314.0 million at June 30, 2012 and $323.7 million at December 31, 2011 are carried at amortized cost. For further details regarding the nature of Other investments and related features see Item 8, Note 7, “Other Investments,” to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011
(7)	Other assets and other liabilities include derivative instruments. The derivative balances included in each category are reported on a gross basis by level with a netting adjustment presented separately in the Collateral and Counterparty Netting column. The Company often enters into different types of derivative contracts with a single counterparty and these contracts are covered under a netting agreement. In addition, the Company held net cash collateral related to derivative positions of approximately $124.7 million and $77.1 million at June 30, 2012 and December 31, 2011, respectively. This balance is included within cash and cash equivalents and the corresponding liability to return the collateral has been offset against the derivative positions within the balance sheet as appropriate under the netting agreement. The fair values of the individual derivative contracts are reported gross in their respective levels based on the fair value hierarchy.
(8)	Financial instruments sold, but not yet purchased, represent “short sales” and are included within “Payable for investments purchased” on the balance sheet.

9

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

3. Fair Value Measurements

(b) Level 3 Gains and Losses

          The tables below present additional information about assets and liabilities measured at fair value on a recurring basis and for which Level 3 inputs were utilized to determine fair value. The tables reflect gains and losses for the three and six months ended June 30, 2012 and 2011 for all financial assets and liabilities categorized as Level 3 at June 30, 2012 and 2011, respectively. The tables do not include gains or losses that were reported in Level 3 in prior periods for assets that were transferred out of Level 3 prior to June 30, 2012 and 2011. Gains and losses for assets and liabilities classified within Level 3 in the table below may include changes in fair value that are attributable to both observable inputs (Levels 1 and 2) and unobservable inputs (Level 3). Further, it should be noted that the following tables do not take into consideration the effect of offsetting Level 1 and 2 financial instruments entered into by the Company that are either economically hedged by certain exposures to the Level 3 positions or that hedge the exposures in Level 3 positions.

          In general, Level 3 assets include securities for which values were obtained from brokers where either significant inputs were utilized in determining the values that were difficult to corroborate with observable market data, or sufficient information regarding the specific inputs utilized by the broker was not available to support a Level 2 classification. Transfers into or out of Level 3 primarily arise as a result of the valuations utilized by the Company changing between either those provided by independent pricing services that do not contain significant observable inputs, or other valuations sourced from brokers that are considered Level 3.

          There were no transfers between Level 1 and Level 2 during the three and six month periods ended June 30, 2012 and 2011.

10

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

3. Fair Value Measurements

	Level 3 Assets and Liabilities - Three Months Ended June 30, 2012
(U.S. dollars in thousands)	Corporate			RMBS - Agency			RMBS - Non Agency		CMBS			CDO
Balance, beginning of period	$	33,305		$	39,795		$	-	$	-		$	638,697
Realized gains (losses)		82			(30	)		-		-			57
Movement in unrealized gains (losses)		94			195			-		-			6,186
Purchases and issuances		-			35			-		-			-
Sales and settlements		(213	)		(4,345	)		-		-			(1,488	)
Transfers into Level 3		536			16,938			1,596		-			-
Transfers out of Level 3		(293	)		-			-		-			(1,273	)
Fixed maturities to short-term investments classification change		-			-			-		-			-
Balance, end of period	$	33,511		$	52,588		$	1,596	$	-		$	642,179
Movement in total gains (losses) above relating to instruments still held at the reporting date	$	94		$	197		$	-	$	-		$	6,186
	Level 3 Assets and Liabilities - Three Months Ended June 30, 2012
(U.S. dollars in thousands)	Other asset- backed securities			Non-US Sovereign Government, Provincial, Supranational and Government Related/Supported			Short-term investments		Other investments			Derivative Contracts - Net
Balance, beginning of period	$	16,410		$	-		$	-	$	115,659		$	(40,630	)
Realized gains (losses)		(135	)		-			-		510			-
Movement in unrealized gains (losses)		4,145			-			-		3,616			4,683
Purchases and issuances		-			-			-		2,365			-
Sales and settlements		(844	)		-			-		(4,080	)		-
Transfers into Level 3		5,672			-			-		-			-
Transfers out of Level 3		-			-			-		(305	)		-
Fixed maturities to short-term investments classification change		-			-			-		-			-
Balance, end of period	$	25,248		$	-		$	-	$	117,765		$	(35,947	)
Movement in total gains (losses) above relating to instruments still held at the reporting date	$	3,918		$	-		$	-	$	1,326		$	4,683

11

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

3. Fair Value Measurements

	Level 3 Assets and Liabilities - Three Months Ended June 30, 2011
(U.S. dollars in thousands)	Corporate			RMBS - Agency			RMBS - Non Agency			CMBS			CDO
Balance, beginning of period	$	34,885		$	32,987		$	3,335		$	1,757		$	742,551
Realized gains (losses)		(247	)		-			-			207			(419	)
Movement in unrealized gains (losses)		353			61			(22	)		(527	)		9,633
Purchases and issuances		-			-			-			3,155			2,379
Sales and settlements		(7,567	)		(165	)		(119	)		(29	)		(29,530	)
Transfers into Level 3		-			11,276			-			-			2,625
Transfers out of Level 3		(22,638	)		(28,774	)		-			-			-
Fixed maturities to short-term investments classification change		-			-			-			-			-
Balance, end of period	$	4,786		$	15,385		$	3,194		$	4,563		$	727,239
Movement in total gains (losses) above relating to instruments still held at the reporting date	$	71		$	61		$	(22	)	$	(320	)	$	8,419
	Level 3 Assets and Liabilities - Three Months Ended June 30, 2011
(U.S. dollars in thousands)	Other asset- backed securities			Non-US Sovereign Government, Provincial, Supranational and Government Related/Supported			Short-term investments			Other investments			Derivative Contracts - Net
Balance, beginning of period	$	12,371		$	-		$	-		$	144,834		$	(36,810	)
Realized gains (losses)		161			-			-			12,155			-
Movement in unrealized gains (losses)		4,688			-			-			(1,982	)		(12,725	)
Purchases and issuances		-			-			-			6,254			-
Sales and settlements		(172	)		-			-			(46,421	)		(110	)
Transfers into Level 3		-			-			-			-			-
Transfers out of Level 3		-			-			-			(300	)		-
Fixed maturities to short-term investments classification change		-			-			-			-			-
Balance, end of period	$	17,048		$	-		$	-		$	114,540		$	(49,645	)
Movement in total gains (losses) above relating to instruments still held at the reporting date	$	4,878		$	-		$	-		$	9,285		$	(12,725	)

12

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

3. Fair Value Measurements

	Level 3 Assets and Liabilities - Six Months Ended June 30, 2012
(U.S. dollars in thousands)	Corporate			RMBS - Agency			RMBS - Non Agency		CMBS			CDO
Balance, beginning of period	$	23,818		$	32,041		$	-	$	-		$	650,851
Realized gains (losses)		(42	)		(96	)		-		-			(1,612	)
Movement in unrealized gains (losses)		1,255			(95	)		-		-			39,379
Purchases and issuances		8,734			70			-		-			-
Sales and settlements		(1,608	)		(3,211	)		-		-			(44,835	)
Transfers into Level 3		1,354			23,879			1,596		-			-
Transfers out of Level 3		-			-			-		-			(1,604	)
Fixed maturities to short-term investments classification change		-			-			-		-			-
Balance, end of period	$	33,511		$	52,588		$	1,596	$	-		$	642,179
Movement in total gains (losses) above relating to instruments still held at the reporting date	$	1,255		$	(95	)	$	-	$	-		$	35,379
	Level 3 Assets and Liabilities - Six Months Ended June 30, 2012
(U.S. dollars in thousands)	Other asset- backed securities			Non-US Sovereign Government, Provincial, Supranational and Government Related/Supported			Short-term investments		Other investments			Derivative Contracts - Net
Balance, beginning of period	$	16,552		$	-		$	-	$	113,959		$	(42,644	)
Realized gains (losses)		(94	)		-			-		2,438			-
Movement in unrealized gains (losses)		3,905			-			-		4,521			6,697
Purchases and issuances		-			-			-		3,682			-
Sales and settlements		(1,118	)		-			-		(6,520	)		-
Transfers into Level 3		6,003			-			-		-			-
Transfers out of Level 3		-			-			-		(315	)		-
Fixed maturities to short-term investments classification change		-			-			-		-			-
Balance, end of period	$	25,248		$	-		$	-	$	117,765		$	(35,947	)
Movement in total gains (losses) above relating to instruments still held at the reporting date	$	3,681		$	-		$	-	$	1,004		$	6,697

13

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

3. Fair Value Measurements

	Level 3 Assets and Liabilities - Six Months Ended June 30, 2011
(U.S. dollars in thousands)	Corporate			RMBS - Agency			RMBS - Non Agency			CMBS			CDO
Balance, beginning of period	$	36,866		$	30,255		$	4,964		$	1,623		$	721,572
Realized gains (losses)		(279	)		-			-			(678	)		(1,071	)
Movement in unrealized gains (losses)		195			(50	)		(16	)		514			36,417
Purchases and issuances		6,877			-			-			3,155			2,379
Sales and settlements		(10,049	)		(286	)		(374	)		(51	)		(33,944	)
Transfers into Level 3		-			-			-			-			1,886
Transfers out of Level 3		(28,824	)		(14,534	)		(1,380	)		-			-
Fixed maturities to short-term investments classification change		-			-			-			-			-
Balance, end of period	$	4,786		$	15,385		$	3,194		$	4,563		$	727,239
Movement in total gains (losses) above relating to instruments still held at the reporting date	$	6		$	(50	)	$	(16	)	$	(152	)	$	33,777
	Level 3 Assets and Liabilities - Six Months Ended June 30, 2011
(U.S. dollars in thousands)	Other asset- backed securities			Non-US Sovereign Government, Provincial, Supranational and Government Related/Supported			Short-term investments			Other investments			Derivative Contracts - Net
Balance, beginning of period	$	24,650		$	3,667		$	-		$	133,717		$	(39,195	)
Realized gains (losses)		(317	)		-			-			12,155			-
Movement in unrealized gains (losses)		6,860			-			-			7,492			(10,276	)
Purchases and issuances		-			-			-			8,115			-
Sales and settlements		(9,114	)		-			-			(46,939	)		(174	)
Transfers into Level 3		-			-			-			-			-
Transfers out of Level 3		(5,031	)		(3,667	)		-			-			-
Fixed maturities to short-term investments classification change		-			-			-			-			-
Balance, end of period	$	17,048		$	-		$	-		$	114,540		$	(49,645	)
Movement in total gains (losses) above relating to instruments still held at the reporting date	$	6,193		$	-		$	-		$	17,337		$	(10,276	)

14

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

3. Fair Value Measurements

(c) Fixed maturities and short-term investments

          The Company’s Level 3 assets consist primarily of CDOs, for which non-binding broker quotes are the primary source of the valuations. Sufficient information regarding the specific inputs utilized by the brokers was not available to support a Level 2 classification. The Company obtains the majority of broker quotes for these CDOs from third party investment managers who perform independent verifications of these valuations using pricing matrices based upon information gathered by market traders. In addition, for the majority of these securities, the Company compares the broker quotes to independent valuations obtained from third party pricing vendors, which may also consist of broker quotes, to assess if the prices received represent a reasonable estimate of the fair value. Although the Company does not have access to the specific unobservable inputs that may have been used in the fair value measurements of the CDO securities provided by brokers, we would expect that the significant inputs considered are prepayment rates, probability of default, loss severity in the event of default, recovery rates, liquidity premium and reinvestment rates. Significant increases (decreases) in any of those inputs in isolation could result in a significantly different fair value measurement. Generally, a change in the assumption used for the probability of default is accompanied by a directionally similar change in the assumption used for the loss severity and a directionally opposite change in the assumption used for prepayment rates.

          The remainder of the Level 3 assets relate to primarily to private equity investments and certain derivative positions as described below.

(d) Other investments

          Included within the Other investments component of the Company’s Level 3 valuations are private investments and alternative fund investments where the Company is not deemed to have significant influence over the investee. The fair value of these investments is based upon net asset values received from the investment manager or general partner of the respective entity. The nature of the underlying investments held by the investee that form the basis of the net asset value include assets such as private business ventures and are such that significant Level 3 inputs are utilized in the determination of the individual underlying holding values and, accordingly, the fair value of the Company’s investment in each entity is classified within Level 3. The Company has not adjusted the net asset values received; however, management incorporates factors such as the most recent financial information received, annual audited financial statements and the values at which capital transactions with the investee take place when applying judgment regarding whether any adjustments should be made to the net asset value in recording the fair value of each position. Investments in alternative funds included in Other investments utilize strategies including arbitrage, directional, event driven and multi-style. These funds potentially have lockup and gate provisions which may limit redemption liquidity. For further details regarding the nature of Other investments and related features see Item 8, Note 7, “Other Investments,” to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011.

(e) Derivative instruments

          Derivative instruments recorded within Other liabilities and classified within Level 3 include credit derivatives sold providing protection on senior tranches of structured finance transactions where the value is obtained directly from the investment bank counterparty and sufficient information regarding the inputs utilized in such valuation was not obtained to support a Level 2 classification and guaranteed minimum income benefits (“GMIB”) embedded within one reinsurance contract. The majority of inputs utilized in the valuations of these types of derivative contracts are considered Level 1 or Level 2; however, each valuation includes at least one Level 3 input that was significant to the valuation and, accordingly, the values are disclosed within Level 3.

15

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

3. Fair Value Measurements

(f) Financial Instruments Not Carried at Fair Value

          Authoritative guidance over disclosures about the fair value of financial instruments requires additional disclosure of fair value information for financial instruments not carried at fair value in both interim and annual reporting periods. Certain financial instruments, particularly insurance contracts, are excluded from these fair value disclosure requirements. The carrying values of cash and cash equivalents, accrued investment income, net receivable from investments sold, other assets, net payable for investments purchased, other liabilities and other financial instruments not included below approximated their fair values. The following table includes financial instruments for which the carrying value differs from the estimated fair values at June 30, 2012 and December 31, 2011. All of these fair values estimates are considered Level 2 fair value measurements. The fair values for fixed maturities held to maturity are provided by third party pricing vendors and significant valuation inputs for all other items included were based upon market data obtained from sources independent of the Company.

	June 30, 2012				December 31, 2011
(U.S. dollars in thousands)	Carrying Value		Fair Value		Carrying Value		Fair Value
Fixed maturities, held to maturity	$	2,716,357	$	3,006,992	$	2,668,978	$	2,895,668
Other investments - structured transactions		314,015		289,874		323,705		297,124
Financial Assets	$	3,030,372	$	3,296,866	$	2,992,683	$	3,192,792
Deposit liabilities	$	1,600,595	$	1,876,742	$	1,608,108	$	1,809,812
Notes payable and debt		1,673,921		1,820,193		2,275,327		2,340,148
Financial Liabilities	$	3,274,516	$	3,696,935	$	3,883,435	$	4,149,960

          The Company historically participated in structured transactions. Remaining structured transactions include cash loans supporting project finance transactions, providing liquidity facility financing to structured project deals and an investment in a payment obligation with an insurance company. These transactions are carried at amortized cost. The fair value of these investments held by the Company is determined through use of internal models utilizing reported trades, benchmark yields, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers and reference data.

          Deposit liabilities include obligations under structured insurance and reinsurance transactions. For purposes of fair value disclosures, the Company determined the estimated fair value of the deposit liabilities by assuming a discount rate equal to the appropriate U.S. Treasury rate plus 139.7 basis points at June 30, 2012 and the appropriate U.S. Treasury rate plus 161.8 basis points at December 31, 2011. The discount rate incorporates the Company’s own credit risk into the determination of estimated fair value.

          The fair values of the Company’s notes payable and debt outstanding were determined based on quoted market prices.

          There are no significant concentrations of credit risk within the Company’s financial instruments as defined in the authoritative guidance over disclosures of fair value of financial instruments not carried at fair value, which excludes certain financial instruments, particularly insurance contracts.

16

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

4. Segment Information

          The Company is organized into three operating segments: Insurance, Reinsurance and Life operations. The Company’s general investment and financing operations are reflected in Corporate.

          The Company evaluates the performance of both the Insurance and Reinsurance segments based on underwriting profit while the Life operations segment performance is based on contribution. Other items of revenue and expenditure of the Company are not evaluated at the segment level. In addition, the Company does not allocate investment assets by segment for its Property and Casualty (“P&C”) operations. Investment assets related to the Company’s Life operations and certain structured products included in the Insurance and Reinsurance segments and Corporate are held in separately identified portfolios. As such, net investment income from these assets is included in the contribution from the applicable segment.

Three Months Ended June 30, 2012 (U.S. dollars in thousands, except ratios)	Insurance			Reinsurance			Total P&C			Life Operations			Total
Gross premiums written	$	1,311,034		$	452,417		$	1,763,451		$	92,904		$	1,856,355
Net premiums written		944,267			403,011			1,347,278			85,623			1,432,901
Net premiums earned		959,294			441,678			1,400,972			85,623			1,486,595
Net losses and loss expenses		(635,284	)		(191,071	)		(826,355	)		(131,150	)		(957,505	)
Acquisition costs		(123,284	)		(87,723	)		(211,007	)		(7,930	)		(218,937	)
Operating expenses (1)		(192,247	)		(41,991	)		(234,238	)		(2,829	)		(237,067	)
Underwriting profit (loss)	$	8,479		$	120,893		$	129,372		$	(56,286	)	$	73,086
Net investment income		-			-			170,581			74,645			245,226
Net results from structured products (2)		9,047			(22,913	)		(13,866	)		-			(13,866	)
Net fee income and other (3)		(1,847	)		990			(857	)		42			(815	)
Net realized gains (losses) on investments								(2,154	)		(10,239	)		(12,393	)
Contribution from P&C and Life Operations							$	283,076		$	8,162		$	291,238
Corporate & other:
Net realized & unrealized gains (losses) on derivative instruments														(4,300	)
Net income (loss) from investment fund affiliates and operating affiliates (4)														25,658
Exchange gains (losses)														17,976
Corporate operating expenses														(50,061	)
Interest expense (5)														(26,089	)
Non-controlling interests														(3,454	)
Income tax														(29,812	)
Net income (loss) attributable to XL Group plc													$	221,156
Ratios – P&C operations: (6)
Loss and loss expense ratio		66.2	%		43.3	%		59.0	%
Underwriting expense ratio		32.9	%		29.3	%		31.8	%
Combined ratio		99.1	%		72.6	%		90.8	%

(1)	Operating expenses exclude Corporate operating expenses, shown separately.
(2)	The net results from P&C structured products include net investment income and interest expense of $17.4 million and $31.3 million, respectively.
(3)	Net fee income and other includes operating expenses from the Company’s loss prevention consulting services business.
(4)	The Company records the income related to the alternative funds and to the private investment and operating fund affiliates on a one-month and three-month lag, respectively.
(5)	Interest expense excludes interest expense related to deposit liabilities recorded in the Insurance and Reinsurance segments.
(6)	Ratios are based on net premiums earned from P&C operations.

17

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

4. Segment Information

Three Months Ended June 30, 2011 (U.S. dollars in thousands, except ratios)	Insurance			Reinsurance			Total P&C			Life Operations			Total
Gross premiums written	$	1,290,030		$	472,413		$	1,762,443		$	100,281		$	1,862,724
Net premiums written		893,191			412,868			1,306,059			92,194			1,398,253
Net premiums earned		907,443			398,682			1,306,125			92,214			1,398,339
Net losses and loss expenses		(608,182	)		(215,402	)		(823,584	)		(137,416	)		(961,000	)
Acquisition costs		(113,883	)		(91,448	)		(205,331	)		(9,768	)		(215,099	)
Operating expenses (1)		(166,608	)		(43,553	)		(210,161	)		(2,723	)		(212,884	)
Underwriting profit (loss)	$	18,770		$	48,279		$	67,049		$	(57,693	)	$	9,356
Net investment income		-			-			196,053			82,057			278,110
Net results from structured products (2)		2,690			2,226			4,916			-			4,916
Net fee income and other (3)		(3,218	)		(9	)		(3,227	)		96			(3,131	)
Net realized gains (losses) on investments								(10,248	)		704			(9,544	)
Contribution from P&C and Life Operations							$	254,543		$	25,164		$	279,707
Corporate & other:
Net realized & unrealized gains (losses) on derivative instruments														(10,950	)
Net income (loss) from investment fund affiliates and operating affiliates (4)														56,501
Exchange gains (losses)														8,498
Corporate operating expenses														(39,566	)
Interest expense (5)														(41,599	)
Non-controlling interests														(2,102	)
Income tax														(24,826	)
Net income (loss) attributable to XL Group plc													$	225,663
Ratios – P&C operations: (6)
Loss and loss expense ratio		67.0	%		54.0	%		63.1	%
Underwriting expense ratio		30.9	%		33.9	%		31.8	%
Combined ratio		97.9	%		87.9	%		94.9	%

(1)	Operating expenses exclude Corporate operating expenses, shown separately.
(2)	The net results from P&C structured products include net investment income and interest expense of $18.4 million and $13.5 million, respectively.
(3)	Net fee income and other includes operating expenses from the Company’s loss prevention consulting services business and expenses related to the cost of an endorsement facility with National Indemnity Company.
(4)	The Company records the income related to the alternative funds and to the private investment and operating fund affiliates on a one-month and three-month lag, respectively.
(5)	Interest expense excludes interest expense related to deposit liabilities recorded in the Insurance and Reinsurance segments.
(6)	Ratios are based on net premiums earned from P&C operations.

18

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

4. Segment Information

Six Months Ended June 30, 2012 (U.S. dollars in thousands, except ratios)	Insurance			Reinsurance			Total P&C			Life Operations			Total
Gross premiums written	$	2,647,668		$	1,432,767		$	4,080,435		$	179,587		$	4,260,022
Net premiums written		1,980,793			1,329,713			3,310,506			164,119			3,474,625
Net premiums earned		1,893,350			865,520			2,758,870			164,143			2,923,013
Net losses and loss expenses		(1,266,969	)		(413,451	)		(1,680,420	)		(252,457	)		(1,932,877	)
Acquisition costs		(251,540	)		(175,967	)		(427,507	)		(15,581	)		(443,088	)
Operating expenses (1)		(377,593	)		(80,738	)		(458,331	)		(5,436	)		(463,767	)
Underwriting profit (loss)	$	(2,752	)	$	195,364		$	192,612		$	(109,331	)	$	83,281
Net investment income		-			-			343,549			149,671			493,220
Net results from structured products (2)		11,866			(20,415	)		(8,549	)		-			(8,549	)
Net fee income and other (3)		(3,867	)		1,323			(2,544	)		90			(2,454	)
Net realized gains (losses) on investments								22,813			(14,403	)		8,410
Contribution from P&C and Life Operations							$	547,881		$	26,027		$	573,908
Corporate & other:
Net realized & unrealized gains (losses) on derivative instruments														(3,598	)
Net income (loss) from investment fund affiliates and operating affiliates (4)														61,319
Exchange gains (losses)														5,258
Corporate operating expenses														(94,321	)
Interest expense (5)														(53,409	)
Non-controlling interests														(40,011	)
Income tax														(51,362	)
Net income (loss) attributable to XL Group plc													$	397,784
Ratios – P&C operations: (6)
Loss and loss expense ratio		66.9	%		47.8	%		60.9	%
Underwriting expense ratio		33.2	%		29.6	%		32.1	%
Combined ratio		100.1	%		77.4	%		93.0	%

(1)	Operating expenses exclude Corporate operating expenses, shown separately.
(2)	The net results from P&C structured products include net investment income and interest expense of $34.7 million and $43.2 million, respectively.
(3)	Net fee income and other includes operating expenses from the Company’s loss prevention consulting services business.
(4)	The Company records the income related to the alternative funds and to the private investment and operating fund affiliates on a one-month and three-month lag, respectively.
(5)	Interest expense excludes interest expense related to deposit liabilities recorded in the Insurance and Reinsurance segments.
(6)	Ratios are based on net premiums earned from P&C operations.

19

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

4. Segment Information

Six Months Ended June 30, 2011 (U.S. dollars in thousands, except ratios)	Insurance			Reinsurance			Total P&C			Life Operations			Total
Gross premiums written	$	2,512,379		$	1,349,184		$	3,861,563		$	197,940		$	4,059,503
Net premiums written		1,812,181			1,208,160			3,020,341			181,866			3,202,207
Net premiums earned		1,783,363			794,458			2,577,821			181,901			2,759,722
Net losses and loss expenses		(1,396,695	)		(635,754	)		(2,032,449	)		(270,647	)		(2,303,096	)
Acquisition costs		(221,527	)		(164,974	)		(386,501	)		(17,088	)		(403,589	)
Operating expenses (1)		(330,703	)		(89,183	)		(419,886	)		(4,889	)		(424,775	)
Underwriting profit (loss)	$	(165,562	)	$	(95,453	)	$	(261,015	)	$	(110,723	)	$	(371,738	)
Net investment income		-			-			379,618			159,033			538,651
Net results from structured products (2)		5,950			6,440			12,390			-			12,390
Net fee income and other (3)		(9,130	)		1,385			(7,745	)		137			(7,608	)
Net realized gains (losses) on investments								(37,134	)		(38,847	)		(75,981	)
Contribution from P&C and Life Operations							$	86,114		$	9,600		$	95,714
Corporate & other:
Net realized & unrealized gains (losses) on derivative instruments														(7,383	)
Net income (loss) from investment fund affiliates and operating affiliates (4)														97,287
Exchange gains (losses)														(1,016	)
Corporate operating expenses														(75,258	)
Interest expense (5)														(83,498	)
Non-controlling interests														(35,438	)
Income tax														7,971
Net income (loss) attributable to XL Group plc													$	(1,621	)
Ratios – P&C operations: (6)
Loss and loss expense ratio		78.3	%		80.0	%		78.8	%
Underwriting expense ratio		31.0	%		32.0	%		31.3	%
Combined ratio		109.3	%		112.0	%		110.1	%

(1)	Operating expenses exclude Corporate operating expenses, shown separately.
(2)	The net results from P&C structured products include net investment income and interest expense of $38.1 million and $25.7 million, respectively.
(3)	Net fee income and other includes operating expenses from the Company’s loss prevention consulting services business and expenses related to the cost of an endorsement facility with National Indemnity Company.
(4)	The Company records the income related to the alternative funds and to the private investment and operating fund affiliates on a one-month and three-month lag, respectively.
(5)	Interest expense excludes interest expense related to deposit liabilities recorded in the Insurance and Reinsurance segments.
(6)	Ratios are based on net premiums earned from P&C operations.

20

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

4. Segment Information

          The following tables summarize the Company’s net premiums earned by line of business:

Three Months Ended June 30, 2012 (U.S. dollars in thousands)	Insurance		Reinsurance		Life Operations		Total
P&C Operations:
Casualty - professional lines	$	330,876	$	53,303	$	-	$	384,179
Casualty - other lines		167,562		76,842		-		244,404
Property catastrophe		-		113,221		-		113,221
Other property		124,893		145,025		-		269,918
Marine, energy, aviation and satellite		143,981		35,627		-		179,608
Other specialty lines (1)		190,169		-		-		190,169
Other (2)		1,813		17,660		-		19,473
Total P&C Operations	$	959,294	$	441,678	$	-	$	1,400,972
Life Operations:
Annuity	$	-	$	-	$	31,243	$	31,243
Other Life		-		-		54,380		54,380
Total Life Operations	$	-	$	-	$	85,623	$	85,623
Total	$	959,294	$	441,678	$	85,623	$	1,486,595
Three Months Ended June 30, 2011 (U.S. dollars in thousands)
P&C Operations:
Casualty - professional lines	$	322,654	$	51,915	$	-	$	374,569
Casualty - other lines		172,246		68,920		-		241,166
Property catastrophe		-		94,363		-		94,363
Other property		117,088		135,255		-		252,343
Marine, energy, aviation and satellite		128,358		30,436		-		158,794
Other specialty lines (1)		165,027		-		-		165,027
Other (2)		2,070		17,793		-		19,863
Total P&C Operations	$	907,443	$	398,682	$	-	$	1,306,125
Life Operations:
Annuity	$	-	$	-	$	33,968	$	33,968
Other Life		-		-		58,246		58,246
Total Life Operations	$	-	$	-	$	92,214	$	92,214
Total	$	907,443	$	398,682	$	92,214	$	1,398,339

(1)	Other specialty lines within the Insurance segment includes: environmental, programs, equine, warranty, fine art and specie, middle markets, political risk and trade credit, product recall, surety, inland marine and surplus lines.
(2)	Other includes whole account contracts, structured indemnity, internal reinsurance and other lines.

21

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

4. Segment Information

Six Months Ended June 30, 2012 (U.S. dollars in thousands)	Insurance		Reinsurance		Life Operations		Total
P&C Operations:
Casualty - professional lines	$	654,696	$	108,209	$	-	$	762,905
Casualty - other lines		334,920		150,080		-		485,000
Property catastrophe		-		216,146		-		216,146
Other property		258,312		280,769		-		539,081
Marine, energy, aviation and satellite		264,081		71,371		-		335,452
Other specialty lines (1)		374,203		-		-		374,203
Other (2)		7,138		38,945		-		46,083
Total P&C Operations	$	1,893,350	$	865,520	$	-	$	2,758,870
Life Operations:
Annuity	$	-	$	-	$	62,700	$	62,700
Other Life		-		-		101,443		101,443
Total P&C Operations	$	-	$	-	$	164,143	$	164,143
Total	$	1,893,350	$	865,520	$	164,143	$	2,923,013
Six Months Ended June 30, 2011 (U.S. dollars in thousands)
P&C Operations:
Casualty - professional lines	$	638,297	$	105,632	$	-	$	743,929
Casualty - other lines		328,950		119,963		-		448,913
Property catastrophe		-		188,927		-		188,927
Other property		224,009		271,498		-		495,507
Marine, energy, aviation and satellite		253,893		68,864		-		322,757
Other specialty lines (1)		333,693		-		-		333,693
Other (2)		4,521		39,574		-		44,095
Total P&C Operations	$	1,783,363	$	794,458	$	-	$	2,577,821
Life Operations:
Annuity	$	-	$	-	$	66,891	$	66,891
Other Life		-		-		115,010		115,010
Total P&C Operations	$	-	$	-	$	181,901	$	181,901
Total	$	1,783,363	$	794,458	$	181,901	$	2,759,722

(1)	Other specialty lines within the Insurance segment includes: environmental, programs, equine, warranty, fine art and specie, middle markets, political risk and trade credit, product recall, surety, inland marine and surplus lines.
(2)	Other includes whole account contracts, structured indemnity, internal reinsurance and other lines.

22

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

5. Investments

(a) Fixed Maturities, Short-Term Investments and Equity Securities

          Amortized Cost and Fair Value Summary

          The cost (amortized cost for fixed maturities and short-term investments), fair value, gross unrealized gains and gross unrealized (losses), including, other-than-temporary impairments (“OTTI”) recorded in accumulated other comprehensive income (“AOCI”) of the Company’s available for sale (“AFS”) and held to maturity (“HTM”) investments at June 30, 2012 and December 31, 2011 were as follows:

			Included in AOCI
					Gross Unrealized Losses
June 30, 2012 (U.S. dollars in thousands)	Cost or Amortized Cost		Gross Unrealized Gains		Related to Changes in Estimated Fair Value			Non-credit Related OTTI			Fair Value
Fixed maturities - AFS
U.S. Government and Government-Related/Supported (1)	$	1,971,384	$	133,040	$	(2,799	)	$	-		$	2,101,625
Corporate (2) (3) (4)		9,297,657		597,211		(157,659	)		(16,056	)		9,721,153
RMBS – Agency		5,001,023		203,766		(2,476	)		-			5,202,313
RMBS – Non-Agency		728,309		21,822		(52,341	)		(113,247	)		584,543
CMBS		842,802		66,058		(487	)		(3,581	)		904,792
CDO		796,018		8,095		(149,211	)		(4,884	)		650,018
Other asset-backed securities (2)		1,392,065		44,974		(19,486	)		(9,815	)		1,407,738
U.S. States and political subdivisions of the States		1,640,991		125,221		(1,781	)		-			1,764,431
Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported (1)		3,772,530		148,569		(14,910	)		-			3,906,189
Total fixed maturities - AFS	$	25,442,779	$	1,348,756	$	(401,150	)	$	(147,583	)	$	26,242,802
Total short-term investments (1)	$	227,321	$	293	$	(234	)	$	-		$	227,380
Total equity securities	$	553,715	$	3,212	$	(27,871	)	$	-		$	529,056
Total investments - AFS	$	26,223,815	$	1,352,261	$	(429,255	)	$	(147,583	)	$	26,999,238
Fixed maturities - HTM
U.S. Government and Government-Related/Supported (1)	$	10,458	$	1,753	$	-		$	-		$	12,211
Corporate (2)		1,387,033		131,267		(8,847	)		-			1,509,453
RMBS – Non-Agency		81,028		6,077		(15	)		-			87,090
CMBS		12,546		1,667		-			-			14,213
Other asset-backed securities (2)		217,347		20,156		(464	)		-			237,039
Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported (1)		1,007,945		142,215		(3,174	)		-			1,146,986
Total investments - HTM	$	2,716,357	$	303,135	$	(12,500	)	$	-		$	3,006,992

(1)	U.S. Government and Government-Related/Supported, Non-U.S. Sovereign Government, Provincials, Supranationals and Government-Related/Supported and Total short-term investments includes government-related securities with an amortized cost of $2,012.4 million and fair value of $2,066.0 million and U.S. Agencies with an amortized cost of $455.0 million and fair value of $500.5 million.
(2)	At June 30, 2012, Covered Bonds within Fixed maturities – AFS with an amortized cost of $478.1 million and a fair value of $500.5 million and Covered Bonds within Fixed maturities – HTM with an amortized cost of $8.1 million and a fair value of $7.8 million have been included within Other asset-backed securities to align the Company’s classification to market indices. Covered Bonds were included in Corporate prior to January 1, 2012.
(3)	Included within Corporate are certain medium term notes supported primarily by pools of European investment grade credit with varying degrees of leverage. The notes have a fair value of $186.1 million and an amortized cost of $199.1 million. These notes allow the investor to participate in cash flows of the underlying bonds including certain residual values, which could serve to either decrease or increase the ultimate values of these notes.
(4)	Included within Corporate are Tier One and Upper Tier Two securities, representing committed term debt and hybrid instruments, which are senior to the common and preferred equities of the financial institutions. These securities have a fair value of $346.2 million and an amortized cost of $420.3 million at June 30, 2012.

23

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

5. Investments

			Included in AOCI
					Gross Unrealized Losses
December 31, 2011 (U.S. dollars in thousands)	Cost or Amortized Cost		Gross Unrealized Gains		Related to Changes in Estimated Fair Value			Non-credit Related OTTI			Fair Value
Fixed maturities - AFS
U.S. Government and Government-Related/Supported (1)	$	1,864,354	$	130,874	$	(4,245	)	$	-		$	1,990,983
Corporate (2) (3) (4)		9,866,677		527,192		(233,581	)		(51,666	)		10,108,622
RMBS – Agency		5,189,473		193,782		(3,849	)		-			5,379,406
RMBS – Non-Agency		851,557		19,667		(112,867	)		(116,542	)		641,815
CMBS		927,684		56,704		(2,405	)		(7,148	)		974,835
CDO		843,553		6,624		(186,578	)		(4,997	)		658,602
Other asset-backed securities (2)		1,341,309		30,731		(25,486	)		(6,305	)		1,340,249
U.S. States and political subdivisions of the States		1,698,573		101,025		(2,220	)		-			1,797,378
Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported (1)		3,188,535		127,439		(17,839	)		-			3,298,135
Total fixed maturities - AFS	$	25,771,715	$	1,194,038	$	(589,070	)	$	(186,658	)	$	26,190,025
Total short-term investments (1)	$	359,378	$	519	$	(834	)	$	-		$	359,063
Total equity securities	$	480,685	$	27,947	$	(40,435	)	$	-		$	468,197
Total investments - AFS	$	26,611,778	$	1,222,504	$	(630,339	)	$	(186,658	)	$	27,017,285
Fixed maturities - HTM
U.S. Government and Government-Related/Supported (2)	$	10,399	$	1,510	$	-		$	-		$	11,909
Corporate (2)		1,290,209		91,313		(14,433	)		-			1,367,089
RMBS – Non-Agency		80,955		6,520		(32	)		-			87,443
Other asset-backed securities (2)		288,741		20,875		(320	)		-			309,296
Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported (1)		998,674		127,227		(5,950	)		-			1,119,951
Total investments - HTM	$	2,668,978	$	247,445	$	(20,735	)	$	-		$	2,895,688

(1)	U.S. Government and Government-Related/Supported, Non-U.S. Sovereign Government, Provincials, Supranationals and Government-Related/Supported and Total short-term investments includes government-related securities with an amortized cost of $1,878.3 million and fair value of $1,915.6 million and U.S. Agencies with an amortized cost of $494.0 million and fair value of $541.2 million.
(2)	Covered Bonds within Fixed maturities – AFS with an amortized cost of $345.4 million and a fair value of $353.9 million and Covered Bonds within Fixed maturities – HTM with an amortized cost of $8.1 million and a fair value of $7.7 million at December 31, 2011 have been reclassified from Corporate to Other asset-backed securities to align the Company’s classification to market indices and conform to current period presentation.
(3)	Included within Corporate are certain medium term notes supported primarily by pools of European investment grade credit with varying degrees of leverage. The notes have a fair value of $266.0 million and an amortized cost of $297.7 million. These notes allow the investor to participate in cash flows of the underlying bonds including certain residual values, which could serve to either decrease or increase the ultimate values of these notes.
(4)	Included within Corporate are Tier One and Upper Tier Two securities, representing committed term debt and hybrid instruments, which are senior to the common and preferred equities of the financial institutions. These securities have a fair value of $386.1 million and an amortized cost of $494.9 million at December 31, 2011.

          At June 30, 2012 and December 31, 2011, approximately 2.7% and 2.4%, respectively, of the Company’s fixed income investment portfolio at fair value was invested in securities that were below investment grade or not rated. Approximately 34.2% and 31.4% of the gross unrealized losses in the Company’s fixed income securities portfolio at June 30, 2012 and December 31, 2011, respectively, related to securities that were below investment grade or not rated.

24

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

5. Investments

          Classification of Fixed Income Securities

          During the third quarter of 2011, the Company changed the manner in which it classifies fixed income securities between Fixed maturities and Short-term investments on the balance sheet and the related note disclosure. Short-term investments under the Company’s previous classification comprised investments with a remaining maturity of less than one year from the reporting date. Under this prior presentation, longer term securities were reclassified from Fixed maturities to Short-term investments as they neared maturity. Under the Company’s new classification, Short-term investments include investments due to mature within one year from the date of purchase and are valued using the same external factors and in the same manner as Fixed maturities. No reclassifications will be made between Fixed maturities and Short-term investments subsequent to the initial date of purchase.

          This change in classification did not have an impact on the total value of investments available for sale on the balance sheet, nor did it impact the consolidated statements of income, comprehensive income, shareholders’ equity or cash flows. The only impact, other than the changes in the balance sheet line items, are changes required within the detailed tables included within this note as well as Note 3, “Fair Value Measurements,” to allocate securities previously classified as Short-term investments under the former practice into the appropriate categories of Fixed maturities within each table to conform to the new accounting presentation for current and comparative periods.

          During 2009 and 2010, the Company elected to hold certain fixed income securities to maturity. Consistent with this intention, the Company reclassified these securities from AFS to HTM in the consolidated financial statements. As a result of this classification, these fixed income securities are reflected in the HTM portfolio and recorded at amortized cost in the consolidated balance sheets and not fair value. Additional securities purchased that have already been designated as HTM are included as part of the HTM portfolio. The HTM portfolio is comprised of long duration non-U.S. securities, which are Euro and U.K. sterling denominated. The Company believes this HTM strategy is achievable due to the relatively stable and predictable cash flows of the Company’s long-term liabilities within its Life operations, along with its ability to substitute other assets at a future date in the event that liquidity was required due to changes in expected cash flows or other transactions entered into related to the long-term liabilities supported by the HTM portfolio. At June 30, 2012, 97.3% of the HTM securities were rated A or higher. The unrealized appreciation at the dates of these reclassifications continues to be reported as a separate component of shareholders’ equity and is being amortized over the remaining lives of the securities as an adjustment to yield in a manner consistent with the amortization of any premium or discount. At the time of the reclassifications, the unrealized U.S. dollar equivalent appreciation related to securities reclassified was $131.5 million in total, with $105.5 million and $108.4 million unamortized at June 30, 2012 and December 31, 2011, respectively.

          Covered Bonds were included within Corporate securities prior to January 1, 2012. They are now classified as Other asset-backed securities to align the Company’s classification to market indices. At December 31, 2011, Covered Bonds with a fair value of $353.9 million have been reclassified from Corporate to Other asset-backed securities to conform to current period presentation.

          Contractual Maturities Summary

          The contractual maturities of AFS and HTM fixed income securities at June 30, 2012 and December 31, 2011 are shown below. Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

25

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

5. Investments

	June 30, 2012 (1)				December 31, 2011 (1)
(U.S. dollars in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Fixed maturities - AFS
Due less than one year	$	1,983,583	$	1,999,239	$	2,004,395	$	2,020,361
Due after 1 through 5 years		7,976,631		8,243,009		7,736,717		7,909,354
Due after 5 through 10 years		3,401,824		3,610,915		3,619,141		3,777,073
Due after 10 years		3,320,524		3,640,235		3,257,886		3,488,330
	$	16,682,562	$	17,493,398	$	16,618,139	$	17,195,118
RMBS – Agency		5,001,023		5,202,313		5,189,473		5,379,406
RMBS – Non-Agency		728,309		584,543		851,557		641,815
CMBS		842,802		904,792		927,684		974,835
CDO		796,018		650,018		843,553		658,602
Other asset-backed securities		1,392,065		1,407,738		1,341,309		1,340,249
Total mortgage and asset-backed securities	$	8,760,217	$	8,749,404	$	9,153,576	$	8,994,907
Total fixed maturities - AFS	$	25,442,779	$	26,242,802	$	25,771,715	$	26,190,025
Fixed maturities - HTM
Due less than one year	$	30,847	$	31,138	$	11,796	$	11,768
Due after 1 through 5 years		165,678		172,104		122,091		123,871
Due after 5 through 10 years		365,103		386,251		393,865		402,424
Due after 10 years		1,843,808		2,079,157		1,771,530		1,960,886
	$	2,405,436	$	2,668,650	$	2,299,282	$	2,498,949
RMBS – Non-Agency		81,028		87,090		80,955		87,443
CMBS		12,546		14,213		-		-
Other asset-backed securities		217,347		237,039		288,741		309,296
Total mortgage and asset-backed securities	$	310,921	$	338,342	$	369,696	$	396,739
Total fixed maturities - HTM	$	2,716,357	$	3,006,992	$	2,668,978	$	2,895,688

(1) Included in the table above are Tier One and Upper Tier Two securities, representing committed term debt and hybrid instruments, which are senior to the common and preferred equities of the financial institutions, at their fair value of $346.2 million and $386.1 million at June 30, 2012 and December 31, 2011, respectively. These securities are reflected in the table based on their call date and have net unrealized losses of $74.7 million and $108.8 million at June 30, 2012 and December 31, 2011, respectively.

          OTTI Considerations

          Under final authoritative accounting guidance, a debt security for which amortized cost exceeds fair value is deemed to be other-than-temporarily impaired if it meets either of the following conditions: (a) the Company intends to sell, or it is more likely than not that the Company will be required to sell, the security before a recovery in value, or (b) the Company does not expect to recover the entire amortized cost basis of the security. Other than in a situation in which the Company has the intent to sell a debt security or more likely than not will be required to sell a debt security, the amount of the OTTI related to a credit loss on the security is recognized in earnings, and the amount of the OTTI related to other factors (e.g., interest rates, market conditions, etc.) is recorded as a component of OCI. The net amount recognized in earnings (“credit loss impairments”) represents the difference between the amortized cost of the security and the net present value of its projected future cash flows discounted at the effective interest rate implicit in the debt security prior to impairment (“NPV”). The remaining difference between the security’s NPV and its fair value is recognized in OCI. Subsequent changes in the fair value of these securities are included in OCI unless a further impairment is deemed to have occurred.

          In the scenario where the Company has the intent to sell a security in which its amortized cost exceeds its fair value, or it is more likely than not it will be required to sell such a security, the entire difference between the security’s amortized cost and its fair value is recognized in earnings.

          The determination of credit losses is based on detailed analyses of underlying cash flows. Such analyses require the use of certain assumptions to develop the estimated performance of underlying collateral. Key assumptions used include, but are not limited to, items such as RMBS default rates based on collateral duration in arrears, severity of losses on default by collateral class, collateral reinvestment rates and expected future general corporate default rates.

26

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

5. Investments

          Factors considered in determining that a gross unrealized loss is not other-than-temporarily impaired include management’s consideration of current and near term liquidity needs and other available sources of funds, an evaluation of the factors and time necessary for recovery and an assessment of whether the Company has the intention to sell or considers it more likely than not that it will be forced to sell a security.

          Pledged Assets

          Certain of the Company’s invested assets are held in trust and pledged in support of insurance and reinsurance liabilities as well as credit facilities. Such pledges are largely required by the Company’s operating subsidiaries that are “non-admitted” under U.S. state insurance regulations, in order for the U.S. cedant to receive statutory credit for reinsurance. Also, certain deposit liabilities and annuity contracts require the use of pledged assets. At June 30, 2012 and December 31, 2011, the Company had $17.5 billion and $17.2 billion in pledged assets, respectively.

(b) Gross Unrealized Losses

          The following is an analysis of how long the AFS and HTM securities at June 30, 2012 and December 31, 2011 had been in a continual unrealized loss position:

	Less than 12 months					Equal to or greater than 12 months
June 30, 2012 (U.S. dollars in thousands)	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
Fixed maturities and short-term investments - AFS
U.S. Government and Government-Related/Supported	$	311,939	$	(1,902	)	$	10,518	$	(1,014	)
Corporate (1) (2) (3)		422,004		(12,834	)		903,366		(160,988	)
RMBS – Agency		100,286		(1,496	)		14,405		(980	)
RMBS – Non-Agency		29,190		(1,745	)		462,704		(163,843	)
CMBS		13,945		(281	)		30,996		(3,787	)
CDO		13,727		(2,651	)		627,018		(151,444	)
Other asset-backed securities (3)		97,511		(972	)		139,949		(28,329	)
U.S. States and political subdivisions of the States		10,227		(121	)		16,029		(1,660	)
Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported		296,340		(4,296	)		163,791		(10,624	)
Total fixed maturities and short-term investments - AFS	$	1,295,169	$	(26,298	)	$	2,368,776	$	(522,669	)
Total equity securities (4)	$	422,204	$	(27,871	)	$	-	$	-
Fixed maturities -HTM
Corporate (3)	$	23,418	$	(374	)	$	49,617	$	(8,473	)
RMBS – Non-Agency		4,996		(15	)		-		-
Other asset-backed securities (3)		8,972		(464	)		-		-
Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported		20,173		(71	)		8,725		(3,103	)
Total fixed maturities - HTM	$	57,559	$	(924	)	$	58,342	$	(11,576	)

(1)	Included within Corporate are certain medium term notes supported primarily by pools of European investment grade credit with varying degrees of leverage. The notes, which are in a gross unrealized loss position, have a fair value of $186.1 million and an amortized cost of $199.1 million. These notes allow the investor to participate in cash flows of the underlying bonds including certain residual values, which could serve to either decrease or increase the ultimate values of these notes.
(2)	Included within Corporate are Tier One and Upper Tier Two securities, representing committed term debt and hybrid instruments, which are senior to the common and preferred equities of the financial institutions. These securities, which are in a gross unrealized loss position, have a fair value of $346.2 million and an amortized cost of $420.3 million at June 30, 2012.
(3)	Covered Bonds within Fixed maturities and short-term investments – AFS with a fair value of $34.3 million and Covered Bonds within Fixed Maturities – HTM with a fair value of $8.1 million have been included within Other asset-backed securities to align the Company’s classification to market indices. Covered Bonds were included in Corporate prior to January 1, 2012.
(4)	Included within equity securities are investments in fixed income funds with a fair value of $95.8 million and an amortized cost of $100.0 million at June 30, 2012.

27

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

5. Investments

	Less than 12 months					Equal to or greater than 12 months
December 31, 2011 (U.S. dollars in thousands)	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
Fixed maturities and short-term investments - AFS
U.S. Government and Government-Related/Supported	$	289,260	$	(332	)	$	43,622	$	(3,984	)
Corporate (1) (2) (3)		1,078,664		(42,151	)		1,185,535		(243,683	)
RMBS – Agency		310,318		(849	)		36,960		(3,000	)
RMBS – Non-Agency		106,294		(31,714	)		449,138		(197,695	)
CMBS		69,109		(2,716	)		39,444		(6,837	)
CDO		3,357		(2,261	)		636,362		(189,456	)
Other asset-backed securities (3)		227,098		(3,324	)		161,312		(28,467	)
U.S. States and political subdivisions of the States		25,309		(199	)		27,646		(2,021	)
Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported		265,766		(4,707	)		202,890		(13,166	)
Total fixed maturities and short-term investments - AFS	$	2,375,175	$	(88,253	)	$	2,782,909	$	(688,309	)
Total equity securities (4)	$	361,585	$	(40,435	)	$	-	$	-
Fixed maturities -HTM
Corporate (3)	$	147,836	$	(7,770	)	$	62,343	$	(6,663	)
RMBS – Non-Agency		9,372		(32	)		-		-
Other asset-backed securities (3)		7,743		(314	)		1,106		(6	)
Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported		79,242		(1,206	)		18,330		(4,744	)
Total fixed maturities - HTM	$	244,193	$	(9,322	)	$	81,779	$	(11,413	)

(1)	Included within Corporate are certain medium term notes supported primarily by pools of European investment grade credit with varying degrees of leverage. The notes, which are in a gross unrealized loss position, have a fair value of $266.0 million and an amortized cost of $297.7 million. These notes allow the investor to participate in cash flows of the underlying bonds including certain residual values, which could serve to either decrease or increase the ultimate values of these notes.
(2)	Included within Corporate are Tier One and Upper Tier Two securities, representing committed term debt and hybrid instruments, which are senior to the common and preferred equities of the financial institutions. These securities, which are in a gross unrealized loss position, have a fair value of $386.1 million and an amortized cost of $494.9 million at December 31, 2011.
(3)	Covered Bonds within Fixed maturities and short-term investments – AFS with a fair value of $44.7 million and Covered Bonds within Fixed Maturities – HTM with a fair value of $7.7 million have been included within Other asset-backed securities to align the Company’s classification to market indices and to conform to current period presentation. Covered Bonds were included in Corporate prior to January 1, 2012.
(4)	Included within equity securities are investments in fixed income funds with a fair value of $91.6 million and an amortized cost of $100.0 million at December 31, 2011.

          The Company had gross unrealized losses totaling $576.8 million on 1,308 securities out of a total of 7,156 held at June 30, 2012 in its AFS portfolio and $12.5 million on 15 securities out of a total of 208 held in its HTM portfolio, which it considers to be temporarily impaired or with respect to which reflects non-credit losses on OTTI. Individual security positions comprising this balance have been evaluated by management to determine the severity of these impairments and whether they should be considered other-than-temporary. Management believes it is more likely than not that the issuer will be able to fund sufficient principal and interest payments to support the current amortized cost.

          Management, in its assessment of whether securities in a gross unrealized loss position are temporarily impaired, considers the significance of the impairments. At June 30, 2012, the Company had structured credit securities with gross unrealized losses of $55.2 million, which had a fair value of $26.3 million, and a cumulative fair value decline of greater than 50% of amortized cost. All of these securities are mortgage and asset-backed securities. These greater than 50% impaired securities include gross unrealized losses of $32.7 million on non-Agency RMBS, $21.7 million on Core CDOs and $0.8 million of CMBS holdings.

28

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

5. Investments

(c) Net Realized Gains (Losses)

          The following represents an analysis of net realized gains (losses) on investments:

Net Realized Gains (Losses) on Investments (U.S. dollars in thousands)	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
Gross realized gains	$	53,732		$	61,037		$	120,621		$	88,179
Gross realized losses on investments sold		(37,932	)		(43,405	)		(63,053	)		(99,539	)
OTTI on investments, net of amounts transferred to other comprehensive income		(28,193	)		(27,176	)		(49,158	)		(64,621	)
Net realized gains (losses) on investments	$	(12,393	)	$	(9,544	)	$	8,410		$	(75,981	)

          The significant components of the net impairment charges of $28.2 million for the three months ended June 30, 2012 were:

§	$14.3 million for structured securities where the Company determined that the likely recovery on these securities was below the carrying value and, accordingly, recorded an impairment of the securities to the discounted value of the cash flows expected to be received on these securities.
§	$10.2 million related to medium term notes backed primarily by European investment grade credit. On certain notes, management concluded that future returns on the underlying assets were not sufficient to support the previously reported amortized cost. The Company also adjusted the estimated remaining holding period of certain notes resulting in a shorter reinvestment spectrum.
§	$2.2 million related to currency losses primarily arising on U.K. sterling denominated securities held in U.S. dollar portfolios.
§	$1.5 million related to equities as the holding was more than 50% impaired.

          The following table sets forth the amount of credit loss impairments on fixed income securities held by the Company as of the dates indicated, for which a portion of the OTTI loss was recognized in OCI, and the corresponding changes in such amounts.

Credit Loss Impairments (U.S. dollars in thousands)	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
Opening balance	$	314,805		$	330,170		$	333,379		$	426,372
Credit loss impairment recognized in the current period on securities not previously impaired		4,043			11,333			5,878			15,906
Credit loss impairments previously recognized on securities which matured, paid down, prepaid or were sold during the period		(40,797	)		(38,316	)		(59,737	)		(164,027	)
Credit loss impairments previously recognized on securities impaired to fair value during the period		-			-			(16,384	)		-
Additional credit loss impairments recognized in the current period on securities previously impaired		21,952			13,339			36,882			38,798
Accretion of credit loss impairments previously recognized due to an increase in cash flows expected to be collected		(283	)		(682	)		(298	)		(1,205	)
Balance at June 30,	$	299,720		$	315,844		$	299,720		$	315,844

          During the three months ended June 30, 2012 and 2011, the $40.8 million and $38.3 million, respectively, of credit loss impairments previously recognized on securities that matured, or were paid down, prepaid or sold, includes $21.9 million and $20.9 million, respectively, of non-Agency RMBS.

          During the six months ended June 30, 2012 and 2011, the $59.7 million and $164.0 million, respectively, of credit loss impairments previously recognized on securities that matured, or were paid down, prepaid or sold, includes $31.8 million and $112.6 million, respectively, of non-Agency RMBS.

29

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

5. Investments

(d) Other Investments

          Structured Transactions - Project Finance Loans

          The Company historically participated in structured transactions in project finance related areas under which the Company provided a cash loan supporting project finance transactions. These transactions are accounted for in accordance with guidance governing accounting by certain entities (including entities with trade receivables) that lend to or finance the activities of others under which the loans are considered held for investment as the Company has the intent and ability to hold for the foreseeable future or until maturity or payoff. Accordingly, these funded loan participations are reported in the balance sheet at outstanding principal adjusted for any allowance for loan losses as considered necessary by management.

          The following table shows a summary of the structured project finance loans at June 30, 2012 and December 31, 2011:

Project Finance Loans (U.S. dollars in thousands)	June 30, 2012			December 31, 2011
Aggregate loan value	$	36,536		$	49,650
Aggregate loan net carrying value	$	30,953		$	40,483
Opening allowance for loan losses	$	(9,167	)	$	(9,167	)
Amounts charged off during the period		3,584			-
Closing allowance for loan losses	$	(5,583	)	$	(9,167	)
Number of individual loan participations		4			6
Number of individual loan participations relating to the allowance for loan losses		1			2
Weighted average contractual term to maturity		1.1 years			2.1 years
Weighted average credit rating		BB			BB-
Range of individual credit ratings		BB+ to BB-			BB+ to CCC

          Surveillance procedures are conducted over each structured project finance loan on an ongoing basis with current expectations of future collections of contractual interest and principal used to determine whether any allowance for loan losses may be required at each period end. If it is determined that a future credit loss on a specific contract is reasonably possible and an amount can be estimated, an allowance is recorded. The contractual receivable is only charged off when the final outcome is known and the Company has exhausted all commercial efforts to try and collect any outstanding balances.

          During the six months ended June 30, 2012 and the year ended December 31, 2011, management conducted separate reviews of each loan participation and determined loss allowance estimates, as shown in the table above, using a recovery value concept. Management considers recovery value to be the percentage of all future contractual interest and principal that the Company expects to receive from the borrower through any combination of regular debt service, other payments, salvage and recovery. The allowances for loan losses are made when it is probable that a loss will be incurred based upon current information received from the borrower.

          Investment Fund Consolidation

          During May 2012, the Company invested $25.0 million to obtain a 94% interest in Five Oaks Investment Corp. (“Five Oaks”), a newly formed private investment company. Five Oaks is a mortgage real estate investment trust that is expected to follow an investment strategy balancing a leveraged portfolio of Agency RMBS with an unlevered or moderately levered portfolio of non-Agency RMBS. Five Oaks may enter into repurchase agreements to acquire investment leverage up to a maximum of $79.5 million. At June 30, 2012, the Company has consolidated Five Oaks resulting in the recording within its balance sheet of: RMBS securities at their fair value of $80.7 million (amortized cost: $80.6 million) within Fixed maturities, $14.9 million of Cash and cash equivalents, $69.1 million of liabilities related to obligations under repurchase agreements within Other liabilities, and $1.5 million of Non-controlling interest in equity of consolidated subsidiaries. $75.6 million of securities held by Five Oaks and consolidated by XL are pledged as collateral under the repurchase agreements. The repurchase agreements do not provide the counterparties any recourse to assets of XL aside from its investment in Five Oaks. Amounts recorded within the Company’s consolidated statement of income related to Five Oaks were immaterial during the three and six month periods ended June 30, 2012. In addition, the Company has purchased an equity interest in Oak Circle Capital Partners (“Oak Circle”), the investment management company that provides portfolio management and other administrative services to Five Oaks. XL’s investment in Oak Circle has been accounted for using the equity method consistent with other investment manager affiliate positions held by the Company.

30

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

6. Derivative Instruments

          The Company enters into derivative instruments for both risk management and investment purposes. The Company is exposed to potential loss from various market risks, and manages its market risks based on guidelines established by management and the Risk and Finance Committee of the Board of Directors of XL Group plc. The Company recognizes all derivatives as either assets or liabilities in the balance sheet and measures those instruments at fair value, with the changes in fair value of derivatives shown in the consolidated statement of income as “net realized and unrealized gains and losses on derivative instruments” unless the derivatives are designated as hedging instruments. The accounting for derivatives that are designated as hedging instruments is described in Item 8, Note 2(h), “Significant Accounting Policies – Derivative Instruments,” to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011.

          The following table summarizes information about the location and gross amounts of derivative fair values contained in the consolidated balance sheet at June 30, 2012 and December 31, 2011:

	June 30, 2012									December 31, 2011
(U.S. dollars in thousands)	Asset Derivative Notional Amount		Asset Derivative Fair Value (1)		Liability Derivative Notional Amount		Liability Derivative Fair Value (1)			Asset Derivative Notional Amount		Asset Derivative Fair Value (1)		Liability Derivative Notional Amount		Liability Derivative Fair Value (1)
Derivatives designed as hedging instruments:
Interest rate contracts (2)	$	156,254	$	116,881	$	-	$	-		$	156,271	$	109,761	$	-	$	-
Foreign exchange contracts		1,932,505		57,315		724,842		(5,883	)		2,033,428		25,387		457,892		(4,518	)
Total derivatives designed as hedging instruments	$	2,088,759	$	174,196	$	724,842	$	(5,883	)	$	2,189,699	$	135,148	$	457,892	$	(4,518	)
Derivatives not designed as hedging instruments:
Investment Related Derivatives:
Interest rate exposure	$	60,802	$	2,229	$	32,642	$	(163	)	$	70,978	$	1,946	$	55,033	$	(43	)
Foreign exchange exposure		27,223		255		59,666		(754	)		232,422		3,759		384,592		(11,737	)
Credit exposure		91,250		1,624		374,013		(15,015	)		172,500		5,271		449,513		(13,986	)
Financial market exposure		43,578		718		15,476		(597	)		23,874		615		14,321		-
Financial Operations Derivatives: (3)
Credit exposure (2)		-		-		58,668		(3,626	)		-		-		81,678		(10,288	)
Other Non-Investment Derivatives:
Guaranteed minimum income benefit contract		-		-		70,352		(21,404	)		-		-		78,777		(22,490	)
Modified coinsurance funds withheld contract		73,929		-		-		-			77,200		-		-		-
Total derivatives not designed as hedging instruments	$	296,782	$	4,826	$	610,817	$	(41,559	)	$	576,974	$	11,591	$	1,063,914	$	(58,544	)

(1)	Derivative instruments in an asset or liability position are included within Other assets or Other liabilities, respectively, in the balance sheet on a net basis where the Company has both a legal right of offset and the intentions to settle the contracts on a net basis.
(2)	At June 30, 2012 and December 31, 2011, the Company held net cash collateral related to these derivative positions of $124.7 million and $77.1 million, respectively. The collateral balance is included within Cash and cash equivalents and the corresponding liability to return the collateral has been offset against the derivative asset within the balance sheet as appropriate under the netting agreement.
(3)	Financial operations derivatives represent interests in variable interest entities as described in Note 10, “Variable Interest Entities.”

31

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

6. Derivative Instruments

(a) Derivative Instruments Designated as Fair Value Hedges

          The Company designates certain of its derivative instruments as fair value hedges or cash flow hedges and formally and contemporaneously documents all relationships between the hedging instruments and hedged items and links the hedging derivative to specific assets and liabilities. The Company assesses the effectiveness of the hedge both at inception and on an on-going basis, and determines whether the hedge is highly effective in offsetting changes in fair value or cash flows of the linked hedged item.

          At June 30, 2012 and 2011, a portion of the Company’s liabilities are hedged against changes in the applicable designated benchmark interest rate. Interest rate swaps are also used to hedge the changes in fair value of certain fixed rate liabilities and fixed income securities due to changes in the designated benchmark interest rate. In addition, the Company utilizes foreign exchange contracts to hedge the fair value of certain fixed income securities as well as to hedge certain net investments in foreign operations.

          The following table provides the total impact on earnings relating to derivative instruments formally designated as fair value hedges along with the impacts of the related hedged items for the three and six months ended June 30, 2012 and 2011:

	Hedged Items - Amount of Gain/(Loss) Recognized in Income Attributable to Risk
Derivatives Designated as Fair Value Hedges: Three Months Ended June 30, 2012 (U.S. dollars in thousands)	Gain/(Loss) Recognized in Income on Derivative			Deposit Liabilities			Fixed Maturity Investments			Ineffective Portion of Hedging Relationship - Gain/(Loss)
Interest rate exposure	$	7,270
Foreign exchange exposure		7,297
Total	$	14,567		$	(9,789	)	$	(6,972	)	$	(2,194	)
Three Months Ended June 30, 2011
(U.S. dollars in thousands)
Interest rate exposure	$	5,726
Foreign exchange exposure		(877	)
Total	$	4,849		$	(6,672	)	$	866		$	(957	)
Six Months Ended June 30, 2012
(U.S. dollars in thousands)
Interest rate exposure	$	1,813
Foreign exchange exposure		(7,803	)
Total	$	(5,990	)	$	(6,182	)	$	7,539		$	(4,633	)
Six Months Ended June 30, 2011
(U.S. dollars in thousands)
Interest rate exposure	$	4,852
Foreign exchange exposure		(21,303	)
Total	$	(16,451	)	$	(4,291	)	$	21,006		$	264

          The gains (losses) recorded on both the derivatives instruments and specific items designated as being hedged as part of the fair value hedging relationships outlined above are recorded through Net realized and unrealized gains (losses) on derivative instruments in the income statement along with any associated ineffectiveness in the relationships. In addition, the periodic coupon settlements relating to the interest rate swaps are recorded as adjustments to net investment income for the hedges of fixed maturity investments and as adjustments to interest expense for the hedges of deposit liabilities and notes payable and debt.

          The periodic coupon settlements also resulted in decreases to Interest expense of $2.5 million and $4.9 million for the three and six months ended June 30, 2012, respectively, and decreases to Interest expense of $2.6 million and $5.1 million for the three and six months ended June 30, 2011, respectively.

32

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

6. Derivative Instruments

Settlement of Fair Value Hedges

          During the year ended December 31, 2010, the Company settled the interest rate contracts designated as fair value hedges of certain of the Company’s notes payable and debt and also settled three interest rate contracts designated as fair value hedges of certain of the Company’s deposit liability contracts. The cumulative increase recorded to the carrying value of the hedged notes payable and debt of $21.6 million, and the deposit liability contracts of $149.5 million, representing the effective portion of the hedging relationship, is amortized through interest expense over the remaining terms of the debt and deposit liability contracts. A summary of the fair value hedges that were settled in 2010 and their results during the six months ended June 30, 2012 and 2011 is shown below:

Settlement of Fair Value Hedges - Summary (U.S. dollars in thousands, except years)	Fair Value Hedges - Notes Payable and Debt June 30,				Fair Value Hedges - Deposit Liabilities June 30,
	2012		2011		2012		2011
Cumulative reduction to interest expense	$	12,996	$	7,432	$	12,763	$	5,646
Remaining balance	$	8,628	$	14,192	$	136,722	$	143,839
Weighted average years remaining to maturity		2.2		2.9		32.4		35.0

          In July 2012, the Company settled two interest rate contracts designated as fair value hedges of certain of the Company’s deposit liability contracts. At settlement, the cumulative increase recorded to the carrying value of the hedged deposit liability contracts was $83.7 million. This amount will be amortized, through interest expense, over the remaining terms of the deposit liability contracts. The weighted average term remaining to maturity for these contracts was 16.1 years.

(b) Derivative Instruments Designated as Hedges of the Net Investment in a Foreign Operation

          The Company utilizes foreign exchange contracts to hedge the fair value of certain net investments in foreign operations. During the six months ended June 30, 2012 and 2011, the Company entered into foreign exchange contracts that were formally designated as hedges of investments in foreign subsidiaries, the majority of which have functional currencies of either U.K. sterling or the Euro. There was no ineffectiveness in these transactions.

          The following table provides the weighted average U.S. dollar equivalent of foreign denominated net assets that were hedged and the resultant gain (loss) that was recorded in the cumulative translation adjustment account within AOCI for the three and six months ended June 30, 2012 and 2011.

Derivative Instruments Designated as Hedges of the Net Investment in a Foreign Operation - Summary (U.S. dollars in thousands)	Three Months Ended June 30,					Six Months Ended June 30,
	2012		2011			2012		2011
Weighted average of U.S. dollar equivalent of foreign denominated net assets	$	1,872,407	$	1,656,083		$	1,882,904	$	1,542,979
Derivative gains (losses) (1)	$	56,777	$	(27,797	)	$	18,905	$	(69,206	)

(1) Derivative gains (losses) from derivative instruments designated as hedges of the net investment in a foreign operation are recorded in the cumulative translation adjustment account within AOCI for each period.

33

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

6. Derivative Instruments

(c) Derivative Instruments Not Formally Designated As Hedging Instruments

          The following table provides the total impact on earnings relating to derivative instruments not formally designated as hedging instruments under authoritative accounting guidance and from the ineffective portion of fair value hedges. The impacts are all recorded through Net realized and unrealized gains (losses) on derivatives in the income statement for the three and six months ended June 30, 2012 and 2011:

Net Realized and Unrealized Gains (Losses)on Derivative Instruments	Three Months Ended June 30,						Six Months Ended June 30,
(U.S. dollars in thousands)	2012			2011			2012			2011
Investment Related Derivatives:
Interest rate exposure	$	(83	)	$	(4,319	)	$	617		$	(4,151	)
Foreign exchange exposure		683			11,014			329			17,451
Credit exposure		6,323			(12,693	)		2,624			(13,659	)
Financial market exposure		(5,969	)		(32	)		(2,025	)		837
Financial Operations Derivatives:
Credit exposure		-			124			143			306
Other Non-Investment Derivatives:
Contingent credit facility		-			(2,053	)		-			(4,083	)
Guaranteed minimum income benefit contract		(929	)		(1,130	)		1,086			1,179
Modified coinsurance funds withheld contract		(2,131	)		(904	)		(1,739	)		(5,527	)
Total derivatives not designated as hedging instruments	$	(2,106	)	$	(9,993	)	$	1,035		$	(7,647	)
Amount of gain (loss) recognized in income from ineffective portion of fair value hedges		(2,194	)		(957	)		(4,633	)		264
Net realized and unrealized gains (losses) on derivative instruments	$	(4,300	)	$	(10,950	)	$	(3,598	)	$	(7,383	)

          The Company’s objectives in using these derivatives are explained below.

(d)(i) Investment Related Derivatives

          The Company, either directly or through its investment managers, may use derivative instruments within its investment portfolio, including interest rate swaps, inflation swaps, credit derivatives (single name and index credit default swaps), options, forward contracts and financial futures (foreign exchange, bond and stock index futures), primarily as a means of economically hedging exposures to interest rate, credit spread, equity price changes and foreign currency risk or, in limited instances, for investment purposes. The Company is exposed to credit risk in the event of non-performance by the counterparties under any swap contracts, although the Company generally seeks to use credit support arrangements with counterparties to help manage this risk.

          Investment Related Derivatives – Interest Rate Exposure

          The Company utilizes risk management and overlay strategies that incorporate the use of derivative financial instruments, primarily to manage its fixed income portfolio duration and exposure to interest rate risks associated with primarily those assets and liabilities related to certain legacy other financial lines and structured indemnity transactions. The Company uses interest rate swaps to convert certain liabilities from a fixed rate to a variable rate of interest and may also use them to convert a variable rate of interest from one basis to another.

          Investment Related Derivatives – Foreign Exchange Exposure

          The Company has exposure to foreign currency exchange rate fluctuations through its operations and in its investment portfolio. The Company uses foreign exchange contracts to manage its exposure to the effects of fluctuating foreign currencies on the value of certain of its foreign currency fixed maturities primarily within its Life operations portfolio. These contracts are not designated as specific hedges for financial reporting purposes and, therefore, realized and unrealized gains and losses on these contracts are recorded in income in the period in which they occur. These contracts generally have maturities of twelve months or less.

          In addition, certain of the Company’s investment managers may, subject to investment guidelines, enter into forward contracts where potential gains may exist.

34

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

6. Derivative Instruments

          Investment Related Derivatives – Credit Exposure

          Credit derivatives may be purchased within the Company’s investment portfolio in the form of single name and basket credit default swaps, which are used to mitigate credit exposure through a reduction in credit spread duration (i.e., macro credit strategies rather than single-name credit hedging) or exposure to selected issuers, including issuers that are not held in the underlying bond portfolio.

          Investment Related Derivatives – Financial Market Exposure

          Stock index futures may be purchased within the Company’s investment portfolio in order to create synthetic equity exposure and to add value to the portfolio with overlay strategies where market inefficiencies are believed to exist. From time to time, the Company may enter into other financial market exposure derivative contracts on various indices including, but not limited to, inflation and commodity contracts.

(d)(ii) Financial Operations Derivatives – Credit Exposure

          At June 30, 2012 and December 31, 2011, the Company held two credit derivative exposures that were written as part of the Company’s previous financial lines business and are outside of the Company’s investment portfolio: one provides credit protection on the senior tranches of a structured finance transaction; the other is a European project finance loan participation. An aggregate summary of these credit derivative exposures at June 30, 2012 and December 31, 2011 is as follows:

Financial Operations Derivatives - Credit Exposure Summary: (U.S. dollars in thousands, except term to maturity)	June 30, 2012		December 31, 2011
Principal outstanding	$	56,052	$	78,425
Interest outstanding		2,616		3,253
Aggregate outstanding exposure	$	58,668	$	81,678
Total liability recorded	$	3,626	$	10,288
Weighted average contractual term to maturity		4.8 years		5.0 years
Underlying obligations credit rating		BBB-		BB

          The credit protection related to the structured finance transaction is a credit default swap that was executed in 2000. The underlying collateral is predominantly securitized pools of leveraged loans and bonds. In the second quarter of 2012, the Company’s exposure to this transaction was reduced by $23.0 million mainly due to principal pay downs. Management continues to monitor the underlying performance. The European project finance loan participation benefits from an 80% deficiency guarantee from the German state and federal governments.

          At June 30, 2012 and December 31, 2011, there were no reported events of default on these obligations. Credit derivatives are recorded at fair value based upon prices received from the investment bank counterparties and corroborated by using models developed by the Company. Although the Company does not have access to the specific unobservable inputs that may have been used in the value provided by the counterparties, it expects that the significant inputs considered would include changes in interest rates, future default rates, credit spreads, changes in credit quality, future expected recovery rates and other market factors. The change resulting from movements in credit and credit quality spreads is unrealized as the credit derivatives are not traded to realize this resultant value.

(d)(iii) Other Non-Investment Derivatives

          The Company also has derivatives embedded in certain reinsurance contracts. For a particular life reinsurance contract, the Company pays the ceding company a fixed amount equal to the estimated present value of the excess of guaranteed benefit over the account balance upon the policyholder’s election to take the income benefit. The fair value of this derivative is determined based on the present value of expected cash flows. In addition, the Company has modified coinsurance and funds withheld reinsurance agreements that provide for a return based on a portfolio of fixed income securities. As such, the agreements contain embedded derivatives. The embedded derivative is bifurcated from the funds withheld balance and recorded at fair value with changes in fair value recognized in earnings through Net realized and unrealized gains and losses on derivative instruments.

35

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

6. Derivative Instruments

(e) Contingent Credit Features

          Certain derivatives agreements entered into by the Company or its subsidiaries contain rating downgrade provisions that permit early termination of the agreement by the counterparty if collateral is not posted following failure to maintain certain credit ratings from one or more of the principal credit rating agencies. If the Company were required to early terminate such agreements due to a rating downgrade, it could potentially be in a net liability position at the time of settlement. The aggregate fair value of all derivatives agreements containing such rating downgrade provisions that were in a liability position and the collateral posted under any of these agreements as of June 30, 2012 and December 31, 2011 were as follows:

Contingent Credit Features - Summary: (U.S. dollars in thousands)	June 30, 2012		December 31, 2011
Aggregate fair value of derivative agreements with downgrade provisions in a net liability position	$	10,152	$	15,763
Collateral posted to counterparty	$	-	$	809

7. Share Capital

(a) Authorized and Issued

          Ordinary Share Buybacks

          On February 27, 2012, the Company announced that its Board of Directors approved a share buyback program, authorizing the Company to purchase up to $750 million of its ordinary shares. This authorization replaced the approximately $190 million remaining under the share buyback program that was authorized in November 2010 as described in further detail in Item 8, Note 18, “Share Capital,” to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011. During the three months ended March 31, 2012 and the three months ended June 30, 2012, the Company purchased and canceled 4.7 million and 6.1 million ordinary shares under the new program for $100.0 million and $125.0 million, respectively. All share buybacks were carried out by way of redemption in accordance with Irish law and the Company’s constitutional documents. All shares so redeemed were canceled upon redemption. At June 30, 2012, $525.0 million remained available for purchase under the new program.

(b) Stock Plans

          The Company’s performance incentive programs provide for grants of stock options, restricted stock, restricted stock units and performance units and stock appreciation rights. Share based compensation granted by the Company generally contains a vesting period of three or four years, and certain awards also contain performance conditions. The Company records compensation expense related to each award over its vesting period incorporating the best estimate of the expected outcome of performance conditions where applicable. Compensation expense is generally recorded on a straight line basis over the vesting period of an award. See Item 8, Note 18, “Share Capital,” to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011 for further information on the Company’s performance incentive programs and associated accounting.

          During the six months ended June 30, 2012, the Company granted approximately 1.2 million stock options with a weighted-average grant date fair value of $7.62 per option. The fair value of the options issued was estimated on the date of grant using the Black-Scholes option pricing model using the following weighted average assumptions:

Dividend yield	1.90	%
Risk free interest rate	1.16	%
Volatility	46.0	%
Expected lives	6.0	years

          During the six months ended June 30, 2012, the Company granted approximately 0.3 million restricted stock awards to certain employees and directors of the Company and its subsidiaries with an aggregate grant date fair value of approximately $6.8 million. The award recipients generally have the rights and privileges of a shareholder as to the restricted stock, including the right to receive dividends and the right to vote such restricted stock. The recipients are not entitled to receive delivery of a stock certificate prior to vesting nor may any restricted stock be sold, transferred, pledged, or otherwise disposed of prior to the satisfaction of all vesting requirements.

36

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

7. Share Capital

          During the six months ended June 30, 2012, the Company granted approximately 1.3 million restricted stock units to certain employees of the Company and its subsidiaries with an aggregate grant date fair value of approximately $26.2 million. Each restricted stock unit represents the Company’s obligation to deliver to the holder one ordinary share upon satisfaction of the three year vesting term. Restricted stock units are granted at the closing market price on the day of grant and entitle the holder to receive dividends declared and paid in the form of additional ordinary shares contingent upon vesting.

          During the six months ended June 30, 2012, the Company granted approximately 1.5 million performance units (representing a potential maximum share payout of approximately 3.0 million ordinary shares) to certain employees with an aggregate grant date fair value of approximately $29.2 million. The performance units vest after three years, subject to the achievement of stated performance metrics, and entitle the holder to ordinary shares of the Company. There are no dividend rights associated with the performance units. Each grant of performance units has a target number of shares, with final payouts ranging from 0% to 200% of the grant amount depending upon a combination of corporate and business segment performance along with each employee’s continued service through the vest date. Performance targets are based on relative and absolute financial performance metrics.

8. Notes Payable and Debt and Financing Arrangements

(a) Notes Payable and Debt

          All outstanding debt of the Company at June 30, 2012 and December 31, 2011 was issued by XLIT Ltd. (“XL-Cayman”) except for the $600 million par value 6.5% Guaranteed Senior Notes (the “XLCFE Notes”), which were issued by XL Capital Finance (Europe) plc (“XLCFE”) and were repaid at maturity on January 15, 2012. Both XL-Cayman and XLCFE are wholly-owned subsidiaries of XL Group plc. The XLCFE Notes were fully and unconditionally guaranteed by XL Company Switzerland GmbH. XL-Cayman’s outstanding debt is fully and unconditionally guaranteed by XL-Ireland. The Company’s ability to obtain funds from its subsidiaries to satisfy any of its obligations under guarantees is subject to certain contractual restrictions, applicable laws and statutory requirements of the various countries in which the Company operates, including, among others, Bermuda, the United States, Ireland, Switzerland and the U.K. Aggregated required statutory capital and surplus for the principal operating subsidiaries of the Company was $6.7 billion at December 31, 2011.

(b) Letter of Credit Facilities and Other Sources of Collateral

          The Company has several letter of credit facilities provided on a syndicated and bilateral basis from commercial banks. These facilities are utilized primarily to support non-admitted insurance and reinsurance operations in the U.S. and capital requirements at Lloyd’s. The Company’s letter of credit facilities and revolving credit facilities at June 30, 2012 and December 31, 2011 were as follows:

Letter of Credit Summary: (U.S. dollars in thousands except percentages)	June 30, 2012 (1)			December 31, 2011 (1)
Revolving credit facility (2)	$	1,000,000		$	1,000,000
Available letter of credit facilities - commitments (3)	$	4,000,000		$	4,000,000
Available letter of credit facilities - in use	$	1,728,948		$	1,871,192
Collateralized by certain assets of the Company’s investment portfolio		93.2	%		93.8	%

(1)	At June 30, 2012 and December 31, 2011, there were five available letter of credit facilities.
(2)	At June 30, 2012 and December 31, 2011, the revolving credit facility was unutilized.
(3)	The Company has the option to increase the size of the March 2011 Credit Agreement by an additional $500 million and the size of the facilities under the December 2011 Credit Agreements by an additional $500 million across both such facilities..

37

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

9. Related Party Transactions

          At June 30, 2012, the Company owned minority stakes in four independent investment management companies (“Investment Manager Affiliates”) that are actively managing client capital and seeking growth opportunities. The Company seeks to develop relationships with specialty investment management organizations, generally acquiring an equity interest in the business. The Company also invests in certain of the funds and limited partnerships and other legal entities managed by these affiliates and through these funds and partnerships pays management and performance fees to the Company’s Investment Manager Affiliates.

          In the normal course of business, the Company enters into certain quota share reinsurance contracts with a subsidiary of one of its other strategic affiliates, ARX Holding Corporation. During the six months ended June 30, 2012 and 2011, these contracts resulted in reported net premiums written, net reported claims and reported acquisition costs as summarized below. Management believes that these transactions are conducted at market rates consistent with negotiated arms-length contracts.

ARX Holding Corporation (U.S. dollars in thousands)	Three Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
Reported net premiums written	$	10,549	$	8,713	$	26,196	$	22,772
Net losses incurred		7,862		5,570		15,823		13,261
Reported acquisition costs		6,136		5,218		12,613		11,067

10. Variable Interest Entities

          At times, the Company has utilized variable interest entities (“VIEs”) both indirectly and directly in the ordinary course of the Company’s business.

          The Company invests in CDOs and other investment vehicles that are issued through VIEs as part of the Company’s investment portfolio. The activities of these VIEs are generally limited to holding the underlying collateral used to service investments therein. The Company’s involvement in these entities is passive in nature and we are not the arranger of these entities. In addition, the Company has not been involved in establishing these entities and is not the primary beneficiary of these VIEs as contemplated in current authoritative accounting guidance.

          The Company has a limited number of remaining outstanding credit enhancement exposures, including written financial guarantee and credit default swap contracts. The obligations related to these transactions are often securitized through VIEs. The Company is not the primary beneficiary of these VIEs as contemplated in current authoritative accounting guidance on the basis that management does not believe that the Company has the power to direct the activities, such as asset selection and collateral management, which most significantly impact each entity’s economic performance. For further details on the nature of the obligations and the size of the Company’s maximum exposure, see Note 6, “Derivative Instruments,” and Note 12 (a), “Commitments and Contingencies – Financial Guarantee Exposures.”

38

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

11. Computation of Earnings Per Ordinary Share and Ordinary Share Equivalent

(U.S. dollars in thousands, except per share amounts) Basic earnings per ordinary share & ordinary share equivalents outstanding:	Three Months Ended				Six Months Ended
	June 30, 2012		June 30, 2011		June 30, 2012		June 30, 2011
Net income (loss) attributable to ordinary shareholders	$	221,156	$	225,663	$	397,784	$	(1,621	)
Weighted average ordinary shares outstanding		309,765		309,184		312,442		310,325
Basic earnings per ordinary share & ordinary share equivalents outstanding	$	0.71	$	0.73	$	1.27	$	(0.01	)
Diluted earnings per ordinary share & ordinary share equivalents outstanding:
Net income (loss) attributable to ordinary shareholders	$	221,156	$	225,663	$	397,784	$	(1,621	)
Impact of assumed conversion of 10.75% Units		-		11,977		-		-
Net income (loss) attributable to ordinary shareholders including impact of assumed conversion of 10.75% Units	$	221,156	$	237,640	$	397,784	$	(1,621	)
Weighted average ordinary shares outstanding - basic		309,765		309,184		312,442		310,325
Impact of share based compensation and certain conversion features		2,670		32,805		2,568		-
Weighted average ordinary shares outstanding - diluted		312,435		341,989		315,010		310,325
Diluted earnings per ordinary share & ordinary share equivalents outstanding	$	0.71	$	0.69	$	1.26	$	(0.01	)
Dividends per ordinary share	$	0.11	$	0.11	$	0.22	$	0.22

          For the three and six months ended June 30, 2012 and 2011, ordinary shares available for issuance under share based compensation plans of 8.8 million and 9.0 million, and 9.7 million and 17.3 million, respectively, were not included in the calculation of diluted earnings per share because the assumed exercise or issuance of such shares would be anti-dilutive.

          In addition, for the six months ended June 30, 2011, ordinary shares available for issuance under the purchase contracts associated with the 10.75% Units of 30.5 million were not included in the calculation of diluted earnings per share because the assumed issuance of such shares would be anti-dilutive. For further information on the 10.75% Units see Item 8, Note 15, “Notes Payable and Debt Financing Arrangements,” to the Consolidated Financial Statements in the Company’s Annual Report on form 10-K for the year ended December 31, 2011.

39

XL GROUP PLC

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

12. Commitments and Contingencies

(a) Financial Guarantee Exposures

Financial Guarantee Exposure Summary (U.S. dollars in thousands except number of contracts and term to maturity)	June 30,2012		December 31, 2011
Opening number of financial guarantee contracts		4		37
Number of financial guarantee contracts matured, prepaid or commuted during the period		-		(33	)
Closing number of financial guarantee contracts		4		4
Principal outstanding	$	115,464	$	115,464
Interest outstanding	$	-	$	-
Aggregate exposure outstanding	$	115,464	$	115,464
Total gross claim liability recorded	$	1,399	$	1,399
Total unearned premiums and fees recorded	$	352	$	425
Weighted average contractual term to maturity in years		25.9		26.7

          The Company’s outstanding financial guarantee contracts at June 30, 2012 provide credit support for a variety of collateral types with the exposures comprised of (i) a $108.3 million notional financial guarantee on three notes backed by zero coupon long dated bonds and bank perpetual securities, including some issued by European financials; and (ii) a $7.2 million notional financial guarantee relating to future scheduled repayments on a government-subsidized housing project. At June 30, 2012, there were no reported events of default on these obligations.

          Surveillance procedures to track and monitor credit deteriorations in the insured financial obligations are performed by the primary obligors for each transaction on the Company’s behalf. Information regarding the performance status and updated exposure values is provided to the Company on a quarterly basis and evaluated by management in recording claims reserves.

(b) Claims and Other Litigation

          The Company and its subsidiaries are subject to litigation and arbitration in the normal course of business. These lawsuits and arbitrations principally involve claims on policies of insurance and contracts of reinsurance and are typical for the Company and for the property and casualty insurance and reinsurance industry in general. Such legal proceedings are considered in connection with the Company’s loss and loss expense reserves. Reserves in varying amounts may or may not be established in respect of particular claims proceedings based on many factors, including the legal merits thereof. In addition to litigation relating to insurance and reinsurance claims, the Company and its subsidiaries are subject to lawsuits and regulatory actions in the normal course of business that do not arise from or directly relate to claims on insurance or reinsurance policies. This category of business litigation typically involves, among other things, allegations of underwriting errors or misconduct, employment claims, regulatory activity, shareholder disputes or disputes arising from business ventures. The status of these legal actions is actively monitored by management.

          Legal actions are subject to inherent uncertainties, and future events could change management’s assessment of the probability or estimated amount of potential losses from pending or threatened legal actions. Based on available information, it is the opinion of management that the ultimate resolution of pending or threatened legal actions, both individually and in the aggregate, will not result in losses having a material effect on the Company’s financial position or liquidity at June 30, 2012.

          If management believes that, based on available information, it is at least reasonably possible that a material loss (or additional material loss in excess of any accrual) will be incurred in connection with any legal actions or claims, the Company discloses an estimate of the possible loss or range of loss, either individually or in the aggregate, as appropriate, if such an estimate can be made, or discloses that an estimate cannot be made. Based on the Company’s assessment at June 30, 2012, no such disclosures are considered necessary.

40

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

GENERAL

          On July 1, 2010, XL Group plc, an Irish public limited company (“XL-Ireland”), and XL Group Ltd. (now known as XLIT Ltd.), a Cayman Islands exempted company (“XL-Cayman”), completed a redomestication transaction in which all of the ordinary shares of XL-Cayman were exchanged for all of the ordinary shares of XL-Ireland (the “Redomestication”). As a result, XL-Cayman became a wholly owned subsidiary of XL-Ireland. Prior to July 1, 2010, unless the context otherwise indicates, references in this “Management’s Discussion and Analysis of Financial Condition and Results of Operations” to the “Company” are to XL-Cayman and its consolidated subsidiaries. On and subsequent to July 1, 2010, unless the context otherwise indicates, references herein to the “Company” are to XL-Ireland and its consolidated subsidiaries.

          The following is a discussion of the Company’s financial condition and liquidity and results of operations. Certain aspects of the Company’s business have loss experience characterized as low frequency and high severity. This may result in volatility in both the Company’s and an individual segment’s results of operations and financial condition.

          This “Management’s Discussion and Analysis of Financial Condition and Results of Operations” contains forward-looking statements that involve inherent risks and uncertainties. Statements that are not historical facts, including statements about the Company’s beliefs and expectations, are forward-looking statements. These statements are based upon current plans, estimates and expectations. Actual results may differ materially from those projected in such forward-looking statements, and therefore undue reliance should not be placed on them. See “Cautionary Note Regarding Forward-Looking Statements” for a list of additional factors that could cause actual results to differ materially from those contained in any forward-looking statement, as well as Item 1, “Risk Factors,” included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011.

          This discussion and analysis should be read in conjunction with the “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and the audited Consolidated Financial Statements and Notes thereto, presented under Item 7 and Item 8, respectively, of the Company’s Annual Report on Form 10-K for the year ended December 31, 2011.

EXECUTIVE OVERVIEW

          See Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations - Executive Overview,” included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011. That discussion is updated with the disclosures set forth below.

RESULTS OF OPERATIONS AND KEY FINANCIAL MEASURES

Results of Operations

          The following table presents an analysis of the Company’s net income available to ordinary shareholders and other financial measures (described below) for the three and six months ended June 30, 2012 and 2011:

	Three Months Ended June 30,				Six Months Ended June 30,
(U.S. dollars in thousands, except share and per share amounts)	2012		2011		2012		2011
Net income (loss) attributable to ordinary shareholders	$	221,156	$	225,663	$	397,784	$	(1,621	)
Earnings (loss) per ordinary share – basic	$	0.71	$	0.73	$	1.27	$	(0.01	)
Earnings (loss) per ordinary share – diluted	$	0.71	$	0.69	$	1.26	$	(0.01	)
Weighted average number of ordinary shares and ordinary share equivalents – basic		309,765		309,184		312,442		310,325
Weighted average number of ordinary shares and ordinary share equivalents – diluted		312,435		341,989		315,010		310,325

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Key Financial Measures

          The following are some of the financial measures management considers important in evaluating the Company’s operating performance in the Company’s P&C operations:

	Three Months Ended June 30,						Six Months Ended June 30,
(U.S. dollars in thousands, except ratios)	2012			2011			2012			2011
Underwriting profit (loss) - P&C operations	$	129,372		$	67,049		$	192,612		$	(261,015	)
Combined ratio - P&C operations		90.8	%		94.9	%		93.0	%		110.1	%
Net investment income - P&C operations (1)	$	187,986		$	214,448		$	378,202		$	417,735
Annualized return on average ordinary shareholders’ equity (2)		9.0	%		9.6	%		8.3	%		0.0	%

(U.S. dollars)	June 30, 2012		December 31, 2011
Book value per ordinary share (3)	$	32.27	$	29.81
Fully diluted book value per ordinary share (4)	$	31.96	$	29.59

(1)	Net investment income relating to P&C operations includes the net investment income related to the net results from structured products.
(2)	Annualized return on average ordinary shareholders’ equity (“ROE”) is a non-GAAP financial measure and is calculated by dividing the net income (loss) for the year by the average of the opening and closing ordinary shareholders’ equity. See “Annualized Return on Ordinary Shareholders’ Equity Calculation” herein for a reconciliation of ROE to average ordinary shareholders’ equity.
(3)	Book value per ordinary share, a non-GAAP financial measure, is calculated by dividing ordinary shareholders’ equity (total shareholders’ equity less non-controlling interest in equity of consolidated subsidiaries) by the number of outstanding ordinary shares at the applicable period end. Book value per ordinary share is affected primarily by the Company’s net income (loss), by any changes in the net unrealized gains and losses on its investment portfolio, by currency translation adjustments and also by the impact of any share buyback or issuance activity. Ordinary shareholders’ equity was $9.9 billion and $9.4 billion and the number of ordinary shares outstanding was 305.7 million and 315.7 million at June 30, 2012 and December 31, 2011, respectively. Ordinary shares outstanding include all ordinary shares legally issued and outstanding (as disclosed on the face of the balance sheet) as well as all director share units outstanding.
(4)	Fully diluted book value per ordinary share, a non-GAAP financial measure, represents book value per ordinary share combined with the dilutive impact of potential future share issuances at period end. The Company believes that book value per share and fully diluted book value per ordinary share are financial measures important to investors and other interested parties. However, these measures may not be comparable to similarly titled measures used by companies either outside or inside of the insurance industry.

          Underwriting profit – property and casualty (“P&C”) operations

          One way that the Company evaluates the performance of its insurance and reinsurance operations is by underwriting profit or loss. The Company does not measure performance based on the amount of gross premiums written. Underwriting profit or loss is calculated from premiums earned less net losses incurred and expenses related to underwriting activities. The Company’s underwriting profit for the three and six months ended June 30, 2012 was consistent with the combined ratio discussed below.

          Combined ratio – P&C operations

          The combined ratio for P&C operations is used by the Company and many other insurance and reinsurance companies as another measure of underwriting profitability. The combined ratio is calculated from the net losses incurred and underwriting expenses as a ratio of the net premiums earned for the Company’s insurance and reinsurance operations. A combined ratio of less than 100% indicates an underwriting profit and greater than 100% reflects an underwriting loss. The Company’s combined ratio for the three and six months ended June 30, 2012 is lower than for the same periods in the previous year, as a result of a decrease in the loss and loss expense ratio partially offset by a marginal increase in the underwriting expense ratio. The loss and loss expense ratio, which is the ratio of losses and loss expenses incurred to net premiums earned, has decreased as a result of overall lower levels of catastrophe losses and other large loss events for the three and six months ended June 30, 2012 as compared to the same periods of 2011. The increased underwriting expense ratio, which is the ratio of the sum of acquisition expenses and operating expenses to the net premiums earned, is reflective of the additional costs incurred from strategic initiatives and compensation costs.

          Net investment income – P&C operations

          Net investment income related to P&C operations is an important measure that affects the Company’s overall profitability. The largest liability of the Company relates to its unpaid loss reserves, and the Company’s investment portfolio provides liquidity for claims settlements of these reserves as they become due. As a result, a significant part of the investment portfolio is invested in fixed income securities. Net investment income is influenced by a number of factors, including the amounts and timing of inward and outward cash flows, the level of interest rates and credit spreads and changes in overall asset allocation.

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          Book value per ordinary share

          Management also views the change in the Company’s book value per ordinary share as an additional measure of the Company’s performance. Book value per ordinary share, a non-GAAP financial measure, is calculated by dividing ordinary shareholders’ equity (total shareholders’ equity less non-controlling interest in equity of consolidated subsidiaries) by the number of outstanding ordinary shares at the applicable period end. Book value per ordinary share is affected primarily by the Company’s net income (loss), by any changes in the net unrealized gains and losses on its investment portfolio, currency translation adjustments and also the impact of any share buyback or issuance activity. Ordinary shareholders’ equity was $9.9 billion and $9.4 billion and the number of ordinary shares outstanding was 305.7 million and 315.6 million at June 30, 2012 and December 31, 2011, respectively. Ordinary shares outstanding include all ordinary shares legally issued and outstanding (as disclosed on the face of the balance sheet) as well as all director share units outstanding.

          Book value per ordinary share increased by $1.13 in the three months ended June 30, 2012 and by $2.46 in the six months ended June 30, 2012. These increases were due to the net income in both periods, an increase in net unrealized gains on investments and the benefit of share buyback activity. In the three months ended June 30, 2011 and the six months ended June 30, 2011, book value per share increased by $1.59 and $1.17, respectively, due to an increase in net unrealized gains on available for sale investments and the benefit of share buyback activity offset by catastrophe losses in the first quarter of 2011.

          Fully diluted book value per ordinary share, a non-GAAP financial measure, represents book value per ordinary share combined with the dilutive impact of potential future share issuances at period end. In the three and six months ended June 30, 2012, fully diluted book value per ordinary share increased by $1.08 and $2.37, respectively, as a result of the factors contributing to the increase in book value per share noted above. In the three and six months ended June 30, 2011, fully diluted book value per share increased by $1.84 and $1.09, respectively, as a result of the factors contributing to the increase in book value per share noted above.

          Annualized return on average ordinary shareholders’ equity (“ROE”)

          ROE is another non-GAAP financial measure that management considers important in evaluating the Company’s operating performance. ROE is calculated by dividing the net income attributable to ordinary shareholders for any period by the average of the opening and closing ordinary shareholders’ equity. The Company establishes minimum target ROEs for its total operations, segments and lines of business. If the Company’s minimum ROE targets over the longer term are not met with respect to any line of business, the Company seeks to modify and/or exit this line. In addition, among other factors, the Company’s compensation of its senior officers is dependent on the achievement of the Company’s performance goals to enhance ordinary shareholder value as measured by ROE (adjusted for certain items considered to be “non-operating” in nature). For the six months ended June 30, 2012, annualized ROE was 8.3% and for the same period in the prior year it was negative due primarily to the net loss attributable to ordinary shareholders as a result of natural catastrophe losses in that period. See “Annualized Return on Ordinary Shareholders’ Equity Calculation” herein for the calculation of annualized ROE to average ordinary shareholders’ equity.

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SIGNIFICANT ITEMS AFFECTING THE RESULTS OF OPERATIONS

          The Company’s net income and other financial measures as shown above for the three and six months ended June 30, 2012 have been affected by, among other things, the following significant items:

1)	the impact of significant large loss events;
2)	market movement impacts on the Company’s investment portfolio; and
3)	continuing competitive factors impacting the underwriting environment.

1) The impact of significant large loss events

          The Company had a P&C underwriting profit of $129.4 million and $192.6 million for the three and six months ended June 30, 2012, respectively, compared to a P&C underwriting profit of $67.0 and an underwriting loss of $261.0 million for the same periods of 2011, respectively. The increase in underwriting profit in the three and six months ended June 30, 2012 was primarily due to lower levels of natural catastrophe losses and lower non-natural catastrophe large loss activity in energy, property and marine business units as explained further below.

          Natural Catastrophe Losses

          For the three months ended June 30, 2012, natural catastrophe losses net of reinsurance recoveries and including reinstatement premiums were $60.6 million, compared to $68.3 million in the same period of 2011.

          For the six months ended June 30, 2012, natural catastrophe losses net of reinsurance recoveries and including reinstatement premiums were $80.6 million, compared to $455.7 million in the same period of 2011. Natural catastrophe losses in the first half of 2011 included the March 11, 2011 earthquake and tsunami in Japan, the earthquake that struck Christchurch, New Zealand on February 22, 2011, the 2011 flooding events in Australia and the severe weather occurrences, including tornado activity, in the United States over the periods April 22 - 28 and May 20 - 23, 2011.

          Large Loss Events

          The three and six months ended June 30, 2012 and 2011 were impacted by significant losses from large non-natural catastrophe loss events in both the Insurance and Reinsurance segments. In 2012, the impact was largely related to a single large marine loss during the first quarter. Management’s preliminary loss estimates for large marine loss activity in the six months ended June 30, 2012, net of reinsurance and reinstatement premiums, were $46.6 million, of which $24.3 million was attributable to the Insurance segment and $22.3 million to the Reinsurance segment. In the three and six months ended June 30, 2011 the large loss activity relates to several losses in the International Property and Casualty (“IPC”) and North America Property and Casualty (“NAPC”) energy and property Insurance units and a large international marine loss.

          See “Income Statement Analysis,” herein for further information regarding these large loss events within each of the Company’s operating segments.

2) Market movement impacts on the Company’s investment portfolio

          During the three months ended June 30, 2012, interest rates decreased, partially offset by widening credit spreads. The net impact of the market conditions on the Company’s investment portfolio for the three months was favorable and resulted in an increase in the amount of $141.4 million in net unrealized gains on available for sale investments as compared to March 31, 2012. This represents an approximately 0.3% appreciation in average assets for the three months ended June 30, 2012.

          The following table provides further detail regarding the movements in relevant credit markets, as well as in government interest rates using selected market indices:

	Interest Rate Movement for the three months ended June 30, 2012 (1) (‘+’/‘-’ represents increases / decreases in interest rates)	Credit Spread Movement for the three months ended June 30, 2012 (2) (‘+’/‘-’ represents widening / tightening of credit spreads)
United States	-32 basis points (5 year Treasury)	+21 basis points (US Corporate A rated)
		+7 basis points (US Mortgage Master Index)
		+6 basis points (US CMBS, AAA rated)
United Kingdom	-47 basis points (10 year Gilt)	+14 basis points (UK Corporate, AA rated)
Euro-zone	-19 basis points (5 year Bund)	+19 basis points (Europe Corporate, A rated)

(1) Source: Bloomberg Finance L.P.

(2) Source: Merrill Lynch Global Indices.

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          Net realized losses on investments in the three months ended June 30, 2012 totaled $12.4 million, including net realized losses of approximately $28.2 million related to the impairment of certain of the Company’s fixed income investments, where the Company determined that there was an other-than-temporary decline in the value of those investments related to credit. For further analysis of this, see “Results of Operations” below.

          During the six months ended June 30, 2012, credit spreads tightened combined with decreasing interest rates. The net impact of the market conditions on the Company’s investment portfolio for the six-month period was favorable and resulted in an increase in the amount of $369.9 million in net unrealized gains on available for sale investments as compared to December 31, 2011. This represents an approximately 0.8% appreciation in average assets for the six months ended June 30, 2012.

          The following table provides further detail regarding the movements in relevant credit markets, as well as in government interest rates using selected market indices:

	Interest Rate Movement for the six months ended June 30, 2012 (1) (‘+’/‘-’ represents increases / decreases in interest rates)	Credit Spread Movement for the six months ended June 30, 2012 (2) (‘+’/‘-’ represents widening / tightening of credit spreads)
United States	-11 basis points (5 year Treasury)	-52 basis points (US Corporate A rated)
		-7 basis points (US Mortgage Master Index)
		-58 basis points (US CMBS, AAA rated)
United Kingdom	-15 basis points (10 year Gilt)	-17 basis points (UK Corporate, AA rated)
Euro-zone	-24 basis points (5 year Bund)	-85 basis points (Europe Corporate, A rated)

(1)	Source: Bloomberg Finance L.P.
(2)	Source: Merrill Lynch Global Indices.

          Net realized gains on investments in the six months ended June 30, 2012 totaled $8.4 million, including net realized losses of approximately $49.2 million related to the impairment of certain of the Company’s fixed income investments, where the Company determined that there was an other-than-temporary decline in the value of those investments related to credit. For further analysis of this, see “Results of Operations” below.

3) Continuing competitive factors impacting the underwriting environment

          Insurance

           The trading environment for the core lines of insurance business written by the Company remains competitive, although the gradual rate improvement which began in the second half of 2011 has been sustained through the first half of 2012. Gross premiums written in the Insurance segment increased in the three months ended June 30, 2012 as compared to the same period in 2011 by 1.6%. This premium increase was partly driven by improved pricing, further outlined below, and also from new business in NAPC property, construction and surplus lines, higher retention levels and new business in the U.S. D&O book, as well as growth in the new political risk and trade credit business.

          Improved pricing contributed to the premium growth with an overall 4% rate improvement achieved for the segment during the second quarter of 2012. Rate improvement was experienced in all four business groups and nearly all of the segment’s businesses. NAPC rates improved by 6% led by double digit increases in property and surplus lines businesses, a rate increase of 3% in IPC, a rate increase of 2% in Professional driven by U.S. D&O and an improvement in Specialty pricing of 5%, with the strongest movement in marine and offshore energy.

          Reinsurance

          The Reinsurance segment’s gross premiums written decreased by 4.2% in the three months ended June 30, 2012 as compared to the same period in 2011. The premium decrease was predominantly from the North America, Latin America and International business groups, attributable to volume and share reductions, and selective cancelations, partially offset by premium growth from Bermuda.

          July 1 renewals saw pricing broadly in line with management’s expectations. Both the primary and reinsurance markets remain highly competitive with substantial capacity available in both traditional and non-traditional forms. However, the Reinsurance segment will continue its disciplined underwriting and risk management strategies.

          There can be no assurance, however, that such (re)insurance rate conditions or growth opportunities will be sustained or further materialize, or lead to improvements in our books of business. See “Cautionary Note Regarding Forward-Looking Statements.” The Company continues its disciplined underwriting approach to grow on a very selective basis and exit lines where margins are unacceptable.

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OTHER KEY FOCUSES OF MANAGEMENT

          The Company remains focused on, among other things, managing its capital and enhancing its enterprise risk management capabilities. Details of these and other initiatives are outlined below.

Capital Management

          Fundamental to supporting the Company’s business model is its ability to underwrite business, which is largely dependent upon the quality of its claims paying and financial strength ratings as evaluated by independent rating agencies. As a result, in the event that the Company is downgraded, its ability to write business, as well as its financial condition and/or results of operations, could be adversely affected.

          Buybacks of Ordinary Shares

          On February 27, 2012, the Company announced that its Board of Directors approved a share buyback program, authorizing the Company to purchase up to $750 million of its ordinary shares. This authorization replaced the approximately $190 million remaining under the share buyback program that was authorized in November 2010 as described in further detail in Item 8, Note 18, “Share Capital,” to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011. During the three months ended March 31, 2012 and the three months ended June 30, 2012, the Company purchased and canceled 4.7 million and 6.1 million ordinary shares, respectively, under the new program for $100.0 million and $125.0 million, respectively. All share buybacks were carried out by way of redemption in accordance with Irish law and the Company’s constitutional documents. All shares so redeemed were canceled upon redemption. At June 30, 2012, $525.0 million remained available for purchase under the new program.

          Repayment of the 6.5% Guaranteed Senior Notes due January 2012 (the “XLCFE Notes”)

          On January 15, 2012, the $600 million principal amount outstanding on the XLCFE Notes, which were issued by XL Capital Finance (Europe) plc (“XLCFE”), was repaid at maturity. For further detail, see Item 1, Note 8, “Notes Payable and Debt Financing Arrangements,” to the Unaudited Consolidated Financial Statements included herein.

Risk Management

          The Company’s risk management and risk appetite framework is detailed in Item 1, “Business - Enterprise Risk Management,” included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011. The table below shows the Company’s estimated per event net 1% and 0.4% exceedance probability exposures for certain peak natural catastrophe peril regions. These estimates assume that amounts due from reinsurance and retrocession purchases are 100% collectible. There may be credit or other disputes associated with these potential receivables. Finally, the probable maximum losses in the table below were derived by application of a vendor model that was released during the first quarter of 2011 and, accordingly, could be more unreliable than the model that was used historically.

			1-in-100 Event					1-in-250 Event
(U.S. dollars in millions) Geographical Zone	Peril	Measurement Date of In-Force Exposures (1)	ProbableMaximumLoss (2)		Percentage of Tangible Shareholders’ Equity at June 30, 2012			ProbableMaximumLoss (2)		Percentage of Tangible Shareholders’ Equity at June 30, 2012
North America	Earthquake	April 1, 2012	$	877		8.1	%	$	1,451		13.4	%
North Atlantic	Windstorm	April 1, 2012		1,303		12.1	%		1,724		16.0	%
U.S.	Windstorm	April 1, 2012		1,288		11.9	%		1,707		15.8	%
Europe	Windstorm	April 1, 2012		550		5.1	%		792		7.3	%
Japan	Earthquake	April 1, 2012		269		2.5	%		352		3.3	%
Japan	Windstorm	April 1, 2012		165		1.5	%		231		2.1	%

(1)	Detailed analyses of aggregated in-force exposures and maximum loss levels are done periodically. The measurement dates represent the date of the last completed detailed analysis by geographical zone.
(2)	Probable maximum losses, which include secondary uncertainty that incorporates variability around the expected probable maximum loss for each event, do not represent the Company’s maximum potential exposures and are pre-tax.

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CRITICAL ACCOUNTING POLICIES AND ESTIMATES

          See the discussion of the Company’s Critical Accounting Policies and Estimates in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations — Critical Accounting Policies and Estimates,” included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011.

VARIABLE INTEREST ENTITIES AND OTHER OFF-BALANCE SHEET ARRANGEMENTS

          For further information, see the discussion of the Company’s variable interest entities and other off-balance sheet arrangements in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations — Variable Interest Entities (“VIEs”) and Other Off-Balance Sheet Arrangements,” of the Company’s Annual Report on Form 10-K for the year ended December 31, 2011 and Item 1, Note 10, “Variable Interest Entities,” to the Unaudited Consolidated Financial Statements included herein.

SEGMENTS

          The Company is organized into three operating segments: Insurance, Reinsurance and Life operations. The Company’s general investment and financing operations are reflected in Corporate.

          The Company evaluates the performance of both the Insurance and Reinsurance segments based on underwriting profit and the performance of the Life operations segment based on its contribution to net income. Other items of revenue and expenditure of the Company are not evaluated at the segment level for reporting purposes. In addition, the Company does not allocate investment assets by segment for its P&C operations. Investment assets related to the Company’s Life operations and certain structured products included in the Insurance and Reinsurance segments are held in separately identified portfolios. As such, net investment income from these assets is included in the contribution from the applicable segment. See Item 1, Note 4, “Segment Information,” to the Unaudited Consolidated Financial Statements included herein for a reconciliation of segment data to the Company’s Unaudited Consolidated Financial Statements.

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INCOME STATEMENT ANALYSIS

Segment Results for the three months ended June 30, 2012 compared to the three months ended June 30, 2011

Insurance

          The Company’s Insurance segment provides commercial property, casualty and specialty insurance products on a global basis. Products generally provide tailored coverages for complex corporate risks and include the following lines of business: property, casualty, professional liability, environmental liability, aviation and satellite, marine and offshore energy, equine, fine art and specie, excess and surplus lines, political risk and trade credit, product recall, surety and other insurance coverages including those mentioned above, through the Company’s program business. The Company focuses on those lines of business within its insurance operations that are believed to provide the best return on capital over time. These lines of business are divided into the following business groups: NAPC, IPC, Global Professional Lines (“Professional”) and Global Specialty (“Specialty”).

          The following table summarizes the underwriting profit (loss) for the Insurance segment:

	Three Months Ended June 30,
(U.S. dollars in thousands)	2012			2011			% change
Gross premiums written	$	1,311,034		$	1,290,030			1.6	%
Net premiums written		944,267			893,191			5.7	%
Net premiums earned		959,294			907,443			5.7	%
Net losses and loss expenses		(635,284	)		(608,182	)		4.5	%
Acquisition costs		(123,284	)		(113,883	)		8.3	%
Operating expenses		(192,247	)		(166,608	)		15.4	%
Underwriting profit (loss)	$	8,479		$	18,770			(54.8	)%
Net results – structured products		9,047			2,690			236.3	%
Net fee income and other		(1,847	)		(3,218	)		(42.6	)%

          Gross premiums written increased in the three months ended June 30, 2012 as compared to the same period of 2011 by 1.6% and, when evaluated in local currency, increased by 4.2%. All business groups with the exception of IPC experienced an increase in gross premiums written predominantly from new business, improved pricing and higher retention levels, partially offset by the unfavorable impact of foreign exchange rates and targeted non-renewals. For NAPC, the growth in premium was largely driven by new business growth and improved retention across most lines, and pricing mainly in property, partially offset by certain premium adjustments. In Professional, new business primarily in the U.S. professional business and improved pricing contributed to increased premiums but were partially offset by the non-renewal of under-priced business. In Specialty, there was premium growth from favorable amendments to prior year premium estimates, increased writings from the new business lines of political risk and product recall, and new business in marine cargo lines, partially offset by lower retention levels and adverse amendments to prior year premium estimates in aerospace. The decline in IPC was from lower retention and lower new business. The lower retention relates to the non-renewal of property accounts that did not meet the Company’s pricing requirements.

          Net premiums written increased by 5.7% in the three months ended June 30, 2012 as compared to the same period of 2011. The increase resulted from the gross written premium increases outlined above together with a decrease in ceded written premiums. The decrease in ceded premiums relates to decreased utilization of facultative reinsurance, primarily in IPC, following the cancelation of a large general property program, from lower cessions as a result of lower retention levels in IPC property and from reduced ceded reinstatement premiums related to marine losses partially offset by changes in the structure and cost of certain property reinsurance treaties.

          Net premiums earned increased by 5.7% in the three months ended June 30, 2012 as compared to the same period of 2011. The increase primarily resulted from higher net written premiums earned in NAPC, Professional and Specialty partially offset by the decrease in IPC property premiums as outlined above.

          The following table presents the ratios for the Insurance segment:

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	Three Months Ended June 30,
	2012			2011
Loss and loss expense ratio		66.2	%		67.0	%
Acquisition expense ratio		12.9	%		12.5	%
Operating expense ratio		20.0	%		18.4	%
Underwriting expense ratio		32.9	%		30.9	%
Combined ratio		99.1	%		97.9	%

          The loss and loss expense ratio includes net losses incurred for both the current quarter and any favorable or adverse prior year development of loss and loss expense reserves held at the beginning of the year. The following table summarizes the net (favorable) adverse prior year development relating to the Insurance segment for the three months ended June 30, 2012 as compared to the same period of 2011:

	Three Months Ended June 30,
(U.S. dollars in millions, except ratios)	2012			2011
Property	$	1.2		$	(16.7	)
Casualty		(56.9	)		11.8
Professional		(28.3	)		(77.1	)
Specialty and other		41.1			18.3
Total	$	(42.9	)	$	(63.7	)
Loss and loss expense ratio excluding prior year development		70.7	%		74.0	%

          Excluding prior year development, the loss ratio for the three months ended June 30, 2012 decreased by 3.3 loss percentage points as compared to the same period in 2011 despite higher levels of catastrophe losses occurring in the second quarter of 2012. Losses net of reinsurance recoveries and including reinstatement premiums recorded related to natural catastrophe events for the three months ended June 30, 2012 were $ 49.3 million compared to $13.1 million in the same period of 2011. Excluding favorable prior year development, net catastrophe losses and related reinstatement premiums in both quarters, the loss ratio for the three months ended June 30, 2012 compared to the same period of 2011 decreased by 6.8 points to 65.8%, mainly due to significant large loss activity in Specialty, specifically from marine and aerospace losses in the second quarter of 2011.

          Net favorable prior year reserve development of $42.9 million for the three months ended June 30, 2012 was mainly attributable to the following:

•	For property lines, net prior year development was $1.2 million unfavorable.
•	For casualty lines, net prior year development was $56.9 million favorable. This was driven by a release of $34.6 million in primary casualty due to better than expected reported loss experience. The primary casualty releases related to the 2002 to 2007 accident years as well as the 2010 and 2011 accident years. There was also a release of $30.0 million in the excess casualty lines due primarily to the favorable resolution of a mature claim. The releases in primary and excess casualty were partially offset by an increase of $9.6 million in U.S. middle markets due to worse than expected reported loss experience.
•	For Professional, net prior year development was $28.3 million favorable. This was driven by releases in reserves for clash losses (which cover a number of substantially similar claims against multiple policyholders) in the U.S. and Bermuda core professional businesses totaling $50.4 million, comprised of a release of $4.5 million for the 2006 and prior report years to reflect favorable reported loss experience across these years, and a release of $45.9 million for report year 2010 to reflect the limited clash events in the U.S. and Bermuda core professional businesses for this year.
	In terms of non-clash losses in the professional lines, the International and Bermuda core professional businesses were strengthened by $37.1 million and $5.0 million, respectively, due to unfavorable reported loss development while $24.5 million was released from the U.S. core professional business due to better than expected reported loss development. Finally, for the professional lines, the Design portfolio covering architects and engineers professional liability was strengthened by $4.8 million driven by worse than expected reported loss experience in the Canadian book.
•	For specialty and other lines, net prior year development was $41.1 million unfavorable. This was driven by adverse reported loss development for the non-catastrophe exposures in the excess and surplus lines, which led to a strengthening of $30.0 million. For the same reason, marine was strengthened by $12.6 million, run-off surety by $12.5 million, programs by $10.9 million and environmental by $4.4 million. These increases were partially offset by a release of $24.4 million in aerospace due to better than expected reported loss experience and a release of $3.5 million for the catastrophe exposures in marine.

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          The increase in the underwriting expense ratio for the three months ended June 30, 2012 as compared to the same period of 2011 was due to an increase in the operating expense ratio of 1.6 points combined with an increase in the acquisition expense ratio of 0.4 points. The increase in the operating expense ratio was due to higher compensation expenses due to different bonus accrual assumptions and severance costs in the three months ended June 30, 2012 as compared to the same period of 2011. The increase in the acquisition expense ratio was mainly from IPC due to higher premium taxes in the U.K. and Australia, and from Professional through changes in the mix of business.

          Fee income and other improved in the three months ended June 30, 2012 as compared to the same period of 2011 as a result of expenses during the prior year in professional lines related to the cost of an endorsement facility with National Indemnity Company. For further information about this facility, see Item 8, Note 7, “Other Investments,” to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011.

          Net results from structured insurance products include certain structured indemnity contracts that are accounted for as deposit contracts. Net results from these contracts improved in the three months ended June 30, 2012 as compared to the same period of 2011 due to lower interest expense as a result of an accretion rate adjustment recorded in the three months ended June 30, 2012 based on changes in expected cash flows and payout patterns on certain structured indemnity contracts.

Reinsurance

          The Company’s Reinsurance segment provides casualty, property risk, property catastrophe, marine, aviation and other specialty reinsurance on a global basis with business being written on both a proportional and non-proportional treaty basis and also on a facultative basis. The reinsurance operations are structured into geographical business groups: North America, Bermuda, International (Europe and Asia Pacific) and Latin America.

          The following table summarizes the underwriting profit (loss) for the Reinsurance segment:

	Three Months Ended June 30,
(U.S. dollars in thousands)	2012			2011			% change
Gross premiums written	$	452,417		$	472,413			(4.2	)%
Net premiums written		403,011			412,868			(2.4	)%
Net premiums earned		441,678			398,682			10.8	%
Net losses and loss expenses		(191,071	)		(215,402	)		(11.3	)%
Acquisition costs		(87,723	)		(91,448	)		(4.1	)%
Operating expenses		(41,991	)		(43,553	)		(3.6	)%
Underwriting profit (loss)	$	120,893		$	48,279			150.4	%
Net results – structured products		(22,913	)		2,226			*NM
Fee income and other		990			(9	)		*NM

* NM - Not Meaningful

          Gross premiums written decreased in the three months ended June 30, 2012 as compared to the same period of 2011 by 4.2% and, when evaluated in local currency, decreased by 3.4%. The premium decrease was predominantly from the International and North America business groups. The gross premiums written decline from the International business group was mainly as a result of changes in the renewal timing of certain casualty quota share contracts and the absence of positive premium adjustments in the three months ended June 30, 2012 when compared to the same period of 2011. The North America business group experienced a decrease in gross premiums written, driven by a reduction in volume, shares and price for certain renewed property quota share and property excess of loss contracts, as well as changes in the structure of a U.S. agricultural program. Premiums from the Latin America business group declined compared to the prior year quarter due to the timing of certain property renewals. Offsetting these declines was premium growth for the Bermuda business group through both the timing of, and increased shares from property catastrophe renewals. In 2011, the renewal dates for certain policies normally bound in the second quarter were pushed back into the third quarter as a result of the Japan earthquake and tsunami.

          Net premiums written decreased by 2.4% in the three months ended June 30, 2012 as compared to the same period of 2011. The decrease resulted from the gross written premium decreases outlined above offset by a reduction in ceded written premiums. The decrease in ceded written premiums was mainly from the North America business group reflecting the change in structure of the U.S. agricultural program, partially offset by increased ceded premiums in the Bermuda business group.

          Net premiums earned increased by 10.8% in the three months ended June 30, 2012 as compared to the same period of 2011. The increase is a reflection of the overall growth in net premiums written in recent quarters particularly from the Bermuda and International business groups.

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          The following table presents the ratios for the Reinsurance segment:

	Three Months Ended June 30,
	2012			2011
Loss and loss expense ratio		43.3	%		54.0	%
Acquisition expense ratio		19.9	%		22.9	%
Operating expense ratio		9.4	%		11.0	%
Underwriting expense ratio		29.3	%		33.9	%
Combined ratio		72.6	%		87.9	%

          The loss and loss expense ratio includes net losses incurred for both the current year and any favorable or adverse prior year development of loss and loss expense reserves held at the beginning of the year. The following table summarizes the net (favorable) adverse prior year development relating to the Reinsurance segment for the three months ended June 30, 2012 and 2011:

	Three Months Ended June 30,
(U.S. dollars in millions, except ratios)	2012			2011
Property and other short-tail lines	$	(11.5	)	$	(24.8	)
Casualty and other		(46.9	)		(39.1	)
Total	$	(58.4	)	$	(63.9	)
Loss and loss expense ratio excluding prior year development		56.5	%		70.1	%

          Excluding prior year development, the loss ratio for the three months ended June 30, 2012 decreased by 13.6 loss percentage points as compared to the same period of 2011. Losses net of reinsurance recoveries and including reinstatement premiums recorded related to natural catastrophe events for the three months ended June 30, 2012 were $11.2 million compared to $55.2 million in the same period of 2011. For further details on catastrophe losses in 2011, see Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations, Significant Items Affecting the Results of Operations – 1) The impact of significant large natural catastrophe activity,” included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011. Excluding favorable prior year development, net catastrophe losses and related reinstatement premiums in both quarters, the loss ratio for the three months ended June 30, 2012 compared to the same period of 2011 decreased by 2.3 points to 53.7% mainly due to higher levels of losses from the property other lines in Latin America incurred in 2011.

          Net favorable prior year reserve development of $58.4 million for the three months ended June 30, 2012 was mainly attributable to the following:

• Net favorable prior year development of $11.5 million for the short-tailed lines and details of these by specific lines are as follows:

• For property catastrophe lines, net prior year development was $0.1 million favorable.

• For property other lines, net prior year development was $6.5 million favorable mainly due to favorable attritional claim development on the North America and Bermuda business groups offset by some unfavorable attritional claim development on the Latin America business group.

• For marine and aviation lines, net prior year development was $4.9 million favorable due mainly to favorable attritional claim development together with releases on one old aviation loss.

• Net favorable prior year development of $46.9 million for the long-tailed lines and details of these by specific lines are as follows.

• For casualty lines, net prior year development was $39.3 million favorable arising mainly out of the North America business group due to better than expected development on the 2003 and 2004 underwriting years.

• For other lines, net prior year development was $7.6 million favorable driven by a release on the structured indemnity book.

          The decrease in the underwriting expense ratio for the three months ended June 30, 2012 as compared to the same period of 2011 was due to a reduction in the operating expense ratio of 1.6 points and a reduction in the acquisition expense ratio of 3 points. The decrease in the operating expense ratio was due to lower compensation expenses, as a result of severance costs in 2011 and reduced professional fees as compared to the same period of 2011. The decrease in the acquisition expense ratio was largely from decreased profit commissions paid.

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          Net results from structured reinsurance products include certain structured indemnity contracts that are accounted for as deposit contracts. Net results from these contracts have decreased in the three months ended June 30, 2012 as compared to the same period of 2011 due to higher interest expense. The higher interest expense was due to an accretion rate adjustment recorded in the three months ended June 30, 2012 based on changes in expected cash flows and payout patterns on one of the larger structured indemnity contracts and from lower net investment income in the period reflecting lower investment yields and the run-off nature of this line of business.

Life Operations

          The following table summarizes the contribution from the Life operations segment, which has been in run-off since 2009. Prior to the decision to run-off the business, products offered included a broad range of underlying lines of life reinsurance business, including term assurances, group life, critical illness cover, immediate annuities and disability income. In addition, prior to selling the renewal rights to the Continental European Business, the products offered included short-term life, accident and health business. The segment also covers a range of geographic markets, with an emphasis on the U.K., United States, Ireland and Continental Europe:

	Three Months Ended June 30,
(U.S. dollars in thousands)	2012			2011			% change
Gross premiums written	$	92,904		$	100,281			(7.4	)%
Net premiums written		85,623			92,194			(7.1	)%
Net premiums earned		85,623			92,214			(7.1	)%
Net losses and loss expenses		(131,150	)		(137,416	)		(4.6	)%
Acquisition costs		(7,930	)		(9,768	)		(18.8	)%
Operating expenses		(2,829	)		(2,723	)		3.9	%
Net investment income		74,645			82,057			(9.0	)%
Net fee income and other		42			96			(56.3	)%
Realized gains (losses) on investments		(10,239	)		704			*NM
Contribution from Life operations	$	8,162		$	25,164			(67.6	)%

* NM - Not Meaningful

          The following table is an analysis of the Life operations’ gross premiums written, net premiums written and net premiums earned for the three months ended June 30, 2012 and 2011:

	Three Months Ended June 30, 2012						Three Months Ended June 30, 2011
(U.S. dollars in thousands)	GrossPremiumsWritten		Net Premiums Written		Net Premiums Earned		Gross Premiums Written		Net Premiums Written		Net Premiums Earned
Other Life	$	54,713	$	54,380	$	54,380	$	58,751	$	58,226	$	58,246
Annuity		38,191		31,243		31,243		41,530		33,968		33,968
Total	$	92,904	$	85,623	$	85,623	$	100,281	$	92,194	$	92,214

          Gross premiums written decreased by 7.4% in the three months ended June 30, 2012 as compared to the same period of 2011, across the lines of business. The decrease was in line with the run-off expectations combined with unfavorable foreign exchange movements. Ceded premiums written marginally decreased largely due to timing differences.

          Net premiums earned decreased by 7.1% in the three months ended June 30, 2012 as compared to the same period of 2011. This decrease was consistent with the decrease in gross and net premiums written as described above.

          Claims and policy benefit reserves decreased by 4.6% in the three months ended June 30, 2012 as compared to the same period of 2011, as a result of the factors noted above affecting gross and net premiums written, the impact of foreign exchange movements and claims volatility.

          Acquisition costs decreased by 18.8% in the three months ended June 30, 2012 as compared to the same period of 2011, mainly due to the impact of accrual adjustments in the prior year that were one-off in nature.

          Operating expenses increased by 3.9% in the three months ended June 30, 2012 or $0.1 million, as compared to the same period in the prior year.

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          Net investment income is included in the calculation of contribution from Life operations, as it relates to income earned on portfolios of separately identified and managed life investment assets and other allocated assets. Net investment income decreased by 9.0% in the three months ended June 30, 2012 as compared to the same period of 2011 due to unfavorable foreign exchange movements, lower investment yields and a lower invested asset base, reflecting the run-off nature of the Life operations business.

Investment Activities

          The following table illustrates the change in net investment income from P&C operations, net income from investment fund affiliates, net realized (losses) gains on investments and net realized and unrealized gains (losses) on investment derivative instruments for the three months ended June 30, 2012 and 2011:

	Three Months Ended June 30,
(U.S. dollars in thousands)	2012			2011			% change
Net investment income - P&C operations (1)	$	187,986		$	214,448			(12.3	)%
Net income (loss) from investment fund affiliates (2)		3,097			10,250			(69.8	)%
Net realized gains (losses) on investments		(12,393	)		(9,544	)		29.9	%
Net realized and unrealized gains (losses) on investment and other derivative instruments (3)		(4,300	)		(10,950	)		(60.7	)%

(1)	Net investment income relating to P&C operations includes the net investment income related to the net results from structured products.
(2)	The Company generally records the income related to alternative fund affiliates on a one-month lag and the private investment fund affiliates on a three-month lag in order for the Company to meet the filing deadlines for its periodic reports.
(3)	For a summary of realized and unrealized gains and losses on all derivative instruments, see Item 1, Note 6, “Derivative Instruments,” to the Unaudited Consolidated Financial Statements included herein.

          Net investment income related to P&C business decreased in the three months ended June 30, 2012 as compared to the same period of 2011 due primarily to a reduction in investment yields and cash outflows from the investment portfolio.

          Net income from investment fund affiliates decreased in the three months ended June 30, 2012 as compared to the same period of 2011. This was driven by moderately negative results from alternative fund affiliates as compared to positive results in the three months ended June 30, 2011, partially offset by an improvement in the returns from private funds.

          The Company manages its fixed income portfolio in accordance with investment authorities approved by the Risk and Finance Committee of the Board of Directors of XL-Ireland. The following is a summary of the investment portfolio returns for the three months ended June 30, 2012 and 2011 of the fixed income and non-fixed income portfolios:

	Three Months Ended June 30,
	2012 (1)			2011 (1)
Total Return on Investments		1.4	%		1.7	%
P&C fixed income portfolio		1.0	%		1.6	%
Life fixed income portfolio		2.7	%		2.0	%
Other Portfolios
Alternative portfolio (2)		(0.3	)%		1.1	%
Equity portfolio		(6.9	)%		1.3	%
High-Yield fixed income portfolio		1.2	%		0.2	%

(1)

Portfolio returns are calculated by dividing the sum of gross investment income or net income from investment affiliates, realized gains (losses) and unrealized gains (losses) by the average market value of each portfolio. The performance of investment portfolios are measured on a local currency basis. For aggregate performance calculation, respective local currency balances are translated to U.S. dollars at quarter end rates to calculate composite portfolio results.

(2)

Performance on the alternative portfolio reflects the three months ended May 31, 2012 and 2011, respectively.

Net Realized Gains and Losses on Investments and Other-than-Temporary Declines in the Value of Investments

          Net realized losses on investments of $12.4 million in the three months ended June 30, 2012 included net realized losses of approximately $28.2 million related to the write-down of certain of the Company’s AFS investments as well as losses arising on targeted sales of European financial exposures, partially offset by net realized gains of $24.0 million on sales of equity securities.

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The significant components of the net impairment charges of $28.2 million for the three months ended June 30, 2012 were:
•	$14.3 million for structured securities where the Company determined that the likely recovery on these securities was below the carrying value and, accordingly, recorded an impairment of the securities to the discounted value of the cash flows expected to be received on these securities.
•	$10.2 million related to medium term notes backed primarily by European investment grade credit. On certain notes, management concluded that expected future returns on the underlying assets were not sufficient to support the previously reported amortized cost. The Company also adjusted the estimated remaining holding period of certain notes resulting in a shorter reinvestment spectrum.
•	$2.2 million related to currency losses primarily arising on U.K. sterling denominated securities held in U.S. dollar portfolios.
•	$1.5 million related to equities as the holding was more than 50% impaired.

          Net realized losses on investments during the three months ended June 30, 2011 included net realized losses of $27.2 million related to the write-down of certain of the Company’s fixed income, equity and other investments with respect to which the Company determined that there was an other-than-temporary decline in the value of those investments as well as net realized gains of $17.7 million from sales of investments.

Net Realized and Unrealized Gains and Losses on Derivatives

          Net realized and unrealized losses on derivatives of $4.3 million in the three months ended June 30, 2012 resulted from the Company’s investment strategy to manage interest rate risk, foreign exchange risk and credit risk, and to replicate permitted investments. For a further discussion see Item 1, Note 6, “Derivative Instruments,” to the Unaudited Consolidated Financial Statements included herein.

Other Revenues and Expenses

          The following table sets forth other revenues and expenses of the Company for the three months ended June 30, 2012 and 2011:

	Three Months Ended June 30,
(U.S. dollars in thousands)	2012			2011			% change
Net income (loss) from operating affiliates (1)	$	22,561		$	46,251			(51.2	)%
Exchange gains (losses)		17,976			8,498			111.5	%
Corporate operating expenses		(50,061	)		(39,566	)		26.5	%
Interest expense (2)		(26,089	)		(41,599	)		(37.3	)%
Income tax (benefit) expense		29,812			24,826			20.1	%

(1)	The Company generally records the income related to certain operating affiliates on a three-month lag based upon the availability of the information provided by the investees.
(2)	Interest expense excludes interest expense related to structured products recorded in the Insurance and Reinsurance segments.

          The following table sets forth the net income (loss) from operating affiliates for the three months ended June 30, 2012 and 2011:

	Three Months Ended June 30,
(U.S. dollars in thousands)	2012		2011			% change
Net income (loss) from financial operating affiliates	$	-	$	(1,018	)		(100.0	)%
Net income (loss) from investment manager affiliates		14,052		41,345			(66.0	)%
Net income (loss) from strategic operating affiliates		8,509		5,924			43.6	%
Total	$	22,561	$	46,251			(51.2	)%

          The financial operating affiliate loss in the three months ended June 30, 2011 is wholly attributable to a write down in value of one investment following a restructuring.

          Investment manager affiliate income decreased in the three months ended June 30, 2012 as compared to the same period in the prior year due to an especially strong quarter for certain investment manager affiliates in the second quarter of 2011 as a result of

54

both strong performance by the investment manager affiliates and the achievement of results that surpassed certain fee hurdles by various funds under management, as compared to solid results for the investment manager affiliates in the second quarter of this year.

          Strategic operating affiliate income increased in the three months ended June 30, 2012 as compared to the three months of 2011 due to a loss on one of the strategic operating affiliates in the three months ended June 30 2011.

          Foreign exchange gains in the three months ended June 30, 2012 were a result of an overall strengthening of the value of the U.S. dollar against the Company’s major currency exposures, which include the Euro, U.K. sterling and the Swiss franc.

          Corporate operating expenses increased in the three months ended June 30, 2012 as compared to the same period in the prior year primarily as a result of certain strategic corporate initiatives taking place in 2012.

          Interest expense decreased in the three months ended June 30, 2012 as compared to the same period in the prior year as a result of the overall reduction in the Company’s debt following the repayment at maturity on January 15, 2012 of $600 million principal amount outstanding 6.5% XLCFE Notes, the purchase and retirement of the $575 million principal amount outstanding 8.25% Senior Notes in August 2011, offset by the issuance of $400 million principal amount outstanding 5.75% Senior Notes in September 2011. For further information about these debt financing transactions, see Item 8, Note 13, “Notes Payable and Debt Financing,” to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011.

          A tax charge of $29.8 million was incurred in the three months ended June 30, 2012. The Company recognized a tax charge of $24.8 million in the three months ended June 30, 2011, which included a benefit of $11.9 million arising as a result of a change in an overseas tax rule adopted in the three months ended June 30, 2011. Excluding this benefit, the decrease in the Company’s income tax expense in the three months ended June 30, 2012 compared to the same quarter in 2011 reflects the Company’s expected full year effective tax rate applicable in each of the years.

Segment Results for the six months ended June 30, 2012 compared to the six months ended June 30, 2011

Insurance

          The following table summarizes the underwriting profit (loss) for the Insurance segment:

	Six Months Ended June 30,
(U.S. dollars in thousands)	2012			2011			% change
Gross premiums written	$	2,647,668		$	2,512,379			5.4	%
Net premiums written		1,980,793			1,812,181			9.3	%
Net premiums earned		1,893,350			1,783,363			6.2	%
Net losses and loss expenses		(1,266,969	)		(1,396,695	)		(9.3	)%
Acquisition costs		(251,540	)		(221,527	)		13.5	%
Operating expenses		(377,593	)		(330,703	)		14.2	%
Underwriting profit (loss)	$	(2,752	)	$	(165,562	)		(98.3	)%
Net results – structured products		11,866			5,950			99.4	%
Net fee income and other		(3,867	)		(9,130	)		(57.6	)%

          Gross premiums written increased in the six months ended June 30, 2012 as compared to the same period of 2011 by 5.4% and, when evaluated in local currency, increased by 7.4%. This increase was experienced across the business groups predominantly from new business, improved pricing and higher retention levels, partially offset by the unfavorable impact of foreign exchange rates. For NAPC, the growth in premium was largely driven by new business growth across most lines, improved retention for construction, property and primary casualty, and improved pricing mainly in property over the prior year, partially offset by certain premium adjustments in environmental and excess casualty. In Professional, improved pricing and new business primarily in the U.S. professional business and favorable amendments to prior year premium estimates and retention levels contributed to increased premiums but were partially offset by the non-renewal of certain under-priced business. In Specialty, there was premium growth from favorable amendments to prior year premium estimates, increased writings from the new business lines of political risk and product recall, new business in marine cargo lines, partially offset by lower retention levels and adverse amendments to prior year premium estimates in aerospace. Finally, there was a decline in gross premiums written in IPC from lower retention and reduced new business in property and primary casualty. The lower retention relates to the non-renewal of property accounts that did not meet the Company’s pricing requirements. Partially offsetting these declines was improved retention levels and growth over the prior year in middle market lines.

          Net premiums written increased by 9.3% in the six months ended June 30, 2012 as compared to the same period of 2011. The increase resulted from the gross written premium increases outlined above together with a decrease in ceded written premiums. The decrease in ceded premiums relates to decreased utilization of facultative reinsurance, primarily in IPC, following the cancelation of a

55

large general property program, from lower cessions as a result of lower retention levels in IPC property, as outlined above, and from reduced ceded reinstatement premiums related to marine losses, partially offset by changes in the structure and costs of certain property reinsurance treaties.

          Net premiums earned increased by 6.2% in the six months ended June 30, 2012 as compared to the same period of 2011. The increase primarily resulted from higher net written premiums earned in NAPC, Professional and Specialty, and the favorable amendments to certain prior year premium estimates partially offset by marine reinstatement premiums.

          The following table presents the ratios for the Insurance segment:

	Six Months Ended June 30,
	2012			2011
Loss and loss expense ratio		66.9	%		78.3	%
Acquisition expense ratio		13.3	%		12.4	%
Operating expense ratio		19.9	%		18.6	%
Underwriting expense ratio		33.2	%		31.0	%
Combined ratio		100.1	%		109.3	%

          The loss and loss expense ratio includes net losses incurred for both the current quarter and any favorable or adverse prior year development of loss and loss expense reserves held at the beginning of the year. The following table summarizes the net (favorable) adverse prior year development relating to the Insurance segment for the six months ended June 30, 2012 as compared to the same period of 2011:

	Six Months Ended June 30,
(U.S. dollars in millions, except ratios)	2012			2011
Property	$	(17.0	)	$	(23.7	)
Casualty		(61.9	)		12.0
Professional		(52.6	)		(75.3	)
Specialty and other		34.7			16.7
Total	$	(96.8	)	$	(70.3	)
Loss and loss expense ratio excluding prior year development		72.0	%		82.3	%

          Excluding prior year development, the loss ratio for the six months ended June 30, 2012 decreased by 10.3 loss percentage points as compared to the same period in 2011 due to lower levels of catastrophe losses occurring in 2012. Catastrophe and large loss activity net of reinsurance recoveries and including reinstatement premiums was $76.4 million lower for the first six months of 2012 as compared to the same period of 2011. For further details on catastrophe losses in 2011 see Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations - Significant Items Affecting the Results of Operations – 1) The impact of significant large natural catastrophe activity,” included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011. Excluding favorable prior year development, net catastrophe losses and related reinstatement premiums in both periods, the loss ratio for the six months ended June 30, 2012 compared to the same period of 2011 decreased by 5.6 points to 68.5%, due to significant large loss activity in the IPC and NAPC energy and property units in the first quarter of 2011 partially offset by a large marine loss in the first quarter of 2012.

          Net favorable prior year reserve development of $96.8 million for the six months ended June 30, 2012 was mainly attributable to the following:

• For property lines, net prior year development was $17.0 million favorable. This was driven by releases of $17.3 million and $3.2 million for the non-catastrophe exposures in the property and energy books, respectively, due to better than expected reported loss experience mainly in the 2011 accident year. This favorable experience was partially offset by adverse development of $7.3 million in the construction book also primarily attributable to the 2011 accident year and again for the non-catastrophe exposures. The catastrophe exposures saw releases totaling $2.8 million overall with $6.6 million arising from the 2010 accident year offset by a strengthening of $3.3 million in the 2011 accident year.

• For casualty lines, net prior year development was $61.9 million favorable. This was driven by a release of $34.8 million in the primary casualty business due to better than expected reported loss experience. The primary casualty releases related to the 2002 to 2007 accident years as well as the 2010 and 2011 accident years. There was also a release of $37.5 million in the excess casualty lines due primarily to the favorable resolution of a mature claim. The releases in primary and excess casualty were partially offset by strengthening of $9.6 million in U.S. middle markets due to worse than expected loss experience.

• For Professional, net prior year development was $52.6 million favorable. This was driven by releases in reserves for clash losses (which cover a number of substantially similar claims against multiple policyholders) in the U.S. and Bermuda core professional

56

	businesses totaling $50.4 million. This was comprised of a release of $4.5 million for the 2006 and prior report years to reflect favorable reported loss experience across these years, and a release of $45.9 million for report year 2010 to reflect the limited clash events in the U.S. and Bermuda core professional businesses for this year.
	In terms of non-clash losses in the professional lines, $24.5 million and $18.1 million was released from the U.S. and Bermuda core professional businesses, respectively, due to better than expected reported loss development while the International core professional business was strengthened by $37.1 million due to unfavorable reported loss development. Finally for the professional lines, the Design portfolio covering architects’ and engineers’ professional liability was strengthened by $4.8 million driven by worse than expected reported loss experience in the Canadian book.
•	For specialty and other lines, net prior year development was $34.7 million unfavorable. This was driven by adverse reported loss development for the non-catastrophe exposures in the excess and surplus lines, which led to a strengthening of $30.0 million. For the same reason, marine was strengthened by $13.3 million, run-off surety by $12.5 million, programs by $10.9 million and environmental by $4.4 million. These increases were partially offset by releases of $25.0 million in aerospace and $3.2 million in discontinued lines due to better than expected reported loss experience, and a release of $8.9 million for the catastrophe exposures in marine.

          The increase in the underwriting expense ratio for the six months ended June 30, 2012 as compared to the same period of 2011 was due to an increase in the operating expense ratio of 1.3 points combined with an increase in the acquisition expense ratio of 0.9 points. The increase in the operating expense ratio was due to higher compensation expenses due to different bonus accrual assumptions and severance costs in the six months ended June 30, 2012 as compared to the same period of 2011. The increase in the acquisition expense ratio was largely from the impact of marine reinstatement premiums and other earned premium adjustments on the ratio, and a change in the mix of business in Professional.

          Fee income and other improved in the six months ended June 30, 2012 as compared to the same period of 2011 mainly as a result of expenses during the prior year in professional lines related to the cost of an endorsement facility with National Indemnity Company. For further information about this facility, see Item 8, Note 7, “Other Investments,” to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011.

          Net results from structured insurance products include certain structured indemnity contracts that are accounted for as deposit contracts. Net results from these contracts have improved in the six months ended June 30, 2012 as compared to the same period of 2011 due to a lower interest expense as a result of an accretion rate adjustment recorded in the current quarter based on changes in expected cash flows and payout patterns on certain structured indemnity contracts.

Reinsurance

          The following table summarizes the underwriting profit (loss) for the Reinsurance segment:

	Six Months Ended June 30,
(U.S. dollars in thousands)	2012			2011			% change
Gross premiums written	$	1,432,767		$	1,349,184			6.2	%
Net premiums written		1,329,713			1,208,160			10.1	%
Net premiums earned		865,520			794,458			8.9	%
Net losses and loss expenses		(413,451	)		(635,754	)		(35.0	)%
Acquisition costs		(175,967	)		(164,974	)		6.7	%
Operating expenses		(80,738	)		(89,183	)		(9.5	)%
Underwriting profit (loss)	$	195,364		$	(95,453	)		*NM
Net results – structured products		(20,415	)		6,440			*NM
Fee income and other		1,323			1,385			(4.5	)%

* NM - Not Meaningful

          Gross premiums written increased in the six months ended June 30, 2012 as compared to the same period of 2011 by 6.2% and, when evaluated in local currency, increased by 7.7%. The premium growth was predominantly from the International business group, attributable to casualty lines through new writings and higher renewals; increased property catastrophe shares and rates in Continental Europe; and new business and increased shares in Asia Pacific property proportional lines of business. For the Bermuda business group, there was premium growth from renewals both through price and capacity increases and from the timing of certain Japanese treaties, since in 2011, the renewal dates and periods of cover were affected by the Japan earthquake and tsunami. These were partially offset by the absence of property catastrophe reinstatement premiums in the Bermuda and International business units, which were written and earned in the same period of 2011 in connection with natural catastrophe losses from the Japan earthquake and

57

tsunami. The North America business group experienced a decrease in gross premiums written, driven by a reduction in volume, shares and price for certain renewed property quota share and property excess of loss contracts, as well as from changes in the structure of a U.S. agricultural program partially offset by new business. Premiums from the Latin America business group declined compared to the same period of the prior year mainly due to the timing of certain property renewals.

          Net premiums written increased by 10.1% in the six months ended June 30, 2012 as compared to the same period of 2011. The increase resulted from the gross written premium increases outlined above coupled with a reduction in ceded written premiums. The decrease in ceded written premiums was mainly from the North America business group reflecting the change in structure of a U.S. agricultural program, partially offset by increased ceded reinstatement premiums in the International business group related to the 2011 Thailand flood loss.

          Net premiums earned increased by 8.9% in the six months ended June 30, 2012 as compared to the same period of 2011. The increase is a reflection of the overall growth in net premiums written in recent quarters partially offset by the increase, in 2011, of reinstatement premiums on catastrophe losses, which were earned immediately.

          The following table presents the ratios for the Reinsurance segment:

	Six Months Ended June 30,
	2012			2011
Loss and loss expense ratio		47.8	%		80.0	%
Acquisition expense ratio		20.3	%		20.8	%
Operating expense ratio		9.3	%		11.2	%
Underwriting expense ratio		29.6	%		32.0	%
Combined ratio		77.4	%		112.0	%

          The loss and loss expense ratio includes net losses incurred for both the current year and any favorable or adverse prior year development of loss and loss expense reserves held at the beginning of the year. The following table summarizes the net (favorable) adverse prior year development relating to the Reinsurance segment for the six months ended June 30, 2012 and 2011:

	Six Months Ended June 30,
(U.S. dollars in millions, except ratios)	2012			2011
Property and other short-tail lines	$	(40.6	)	$	(56.1	)
Casualty and other		(44.2	)		(72.2	)
Total	$	(84.8	)	$	(128.3	)
Loss and loss expense ratio excluding prior year development		57.6	%		96.2	%

          Excluding prior year development, the loss ratio for the six months ended June 30, 2012 decreased by 38.6 loss percentage points as compared to the same period of 2011. Losses net of reinsurance recoveries and including reinstatement premiums recorded related to natural catastrophe events for the six months ended June 30, 2012 were $11.2 million compared to $309.9 million in the same period of 2011. For further details on catastrophe losses in 2011 see Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations, Significant Items Affecting the Results of Operations – 1) The impact of significant large natural catastrophe activity” included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011. Excluding favorable prior year development, net catastrophe losses and related reinstatement premiums in both periods, the loss ratio for the six months ended June 30, 2012 and 2011 was the same at 56.2%.

          Net favorable prior year reserve development of $84.8 million for the six months ended June 30, 2012 was mainly attributable to the following:

• Net favorable prior year development of $40.6 million for the short-tailed lines and details of these by specific lines are as follows:

• For property catastrophe lines, net prior year development was $0.4 million favorable.

• For property other lines, net prior year development was $22.4 million favorable mainly due to favorable attritional claim development on the North America and Bermuda books offset by some unfavorable attritional claim development on the Latin America book. Unfavorable development on a property facultative loss was offset by favorable subrogation on an older large loss.

• For marine and aviation lines, net prior year development was $17.8 million favorable due mainly to favorable attritional development together with releases on older large losses.

58

• Net favorable prior year development of $44.2 million for the long-tailed lines and details of these by specific lines are as follows:

• For casualty lines, net prior year development was $35.3 million favorable arising mainly out of the North America book due to better than expected development on the 2003 and 2004 underwriting years.

• For other lines, net prior year development was $8.9 million favorable mainly driven by a release on the Structured Indemnity book.

          The decrease in the underwriting expense ratio for the six months ended June 30, 2012 as compared to the same period of 2011 was due to a reduction in both the operating expense ratio of 1.9 points and the acquisition expense ratio of 0.5 points. The decrease in the operating expense ratio was due to lower compensation expenses in 2012 and reduced professional fees as compared to the same period of 2011. The decrease in the acquisition expense ratio was largely from decreased profit commissions paid as a result of lower net favorable prior year development in North America compared to the same period of 2011.

          Net results from structured reinsurance products include certain structured indemnity contracts that are accounted for as deposit contracts. Net results from these contracts have decreased in the six months ended June 30, 2012 as compared to the same period of 2011 due to higher interest expense. The higher interest expense was due to an accretion rate adjustment recorded in the current quarter based on changes in expected cash flows and payout patterns on one of the larger structured indemnity contracts and from lower net investment income in the six months ended June 30, 2012 reflecting lower investment yields and the run-off nature of this line of business.

Life Operations

          The following table summarizes the contribution from the Life operations segment, which has been in run-off since 2009.

	Six Months Ended June 30,
(U.S. dollars in thousands)	2012			2011			% change
Gross premiums written	$	179,587		$	197,940			(9.3	)%
Net premiums written		164,119			181,866			(9.8	)%
Net premiums earned		164,143			181,901			(9.8	)%
Net losses and loss expenses		(252,457	)		(270,647	)		(6.7	)%
Acquisition costs		(15,581	)		(17,088	)		(8.8	)%
Operating expenses		(5,436	)		(4,889	)		11.2	%
Net investment income		149,671			159,033			(5.9	)%
Net fee income and other		90			137			(34.3	)%
Realized gains (losses) on investments		(14,403	)		(38,847	)		(62.9	)%
Contribution from Life operations	$	26,027		$	9,600			*NM

* NM - Not Meaningful

          The following table is an analysis of the Life operations’ gross premiums written, net premiums written and net premiums earned for the six months ended June 30, 2012 and 2011:

	Six Months Ended June 30, 2012						Six Months Ended June 30, 2011
(U.S. dollars in thousands)	GrossPremiumsWritten		Net Premiums Written		Net Premiums Earned		Gross Premiums Written		Net Premiums Written		Net Premiums Earned
Other Life	$	102,767	$	101,418	$	101,443	$	116,027	$	114,975	$	115,010
Annuity		76,820		62,701		62,700		81,913		66,891		66,891
Total	$	179,587	$	164,119	$	164,143	$	197,940	$	181,866	$	181,901

          Gross premiums written decreased in the six months ended June 30, 2012 as compared to the same period of 2011 by 9.3%, driven predominantly by the Other Life business. The decrease was in line with the run-off expectations combined with unfavorable foreign exchange movements. Ceded premiums written marginally decreased largely due to timing differences.

          Net premiums earned decreased in the six months ended June 30, 2012 as compared to the same period of 2011 by 9.8%. This decrease was consistent with the decrease in gross and net premiums written as described above.

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          Claims and policy benefit reserves decreased by 6.7% in the six months ended June 30, 2012 as compared to the same period of 2011, as a result of the factors noted above affecting gross and net premiums written, the impact of foreign exchange movements and claims volatility.

          Acquisition costs decreased in the six months ended June 30, 2012 as compared to the same period of 2011 by 8.8%, mainly due to the impact of accrual adjustments in the prior year that were one-off in nature.

          Operating expenses increased by 11.2% in the six months ended June 30, 2012 as compared to the same period in the prior year due to certain accrual adjustments in the prior year which lowered the expenses in that period.

          Net investment income is included in the calculation of contribution from Life operations, as it relates to income earned on portfolios of separately identified and managed life investment assets and other allocated assets. Net investment income decreased by 5.9% in the six months ended June 30, 2012 as compared to the same period of 2011 due to unfavorable foreign exchange movements, lower investment yields and a lower invested asset base, reflecting the run-off nature of the Life operations business.

Investment Activities

          The following table illustrates the change in net investment income from P&C operations, net income from investment fund affiliates, net realized (losses) gains on investments and net realized and unrealized gains (losses) on investment derivative instruments for the six months ended June 30, 2012 and 2011:

	Six Months Ended June 30,
(U.S. dollars in thousands)	2012			2011			% change
Net investment income - P&C operations (1)	$	378,202		$	417,735			(9.5	)%
Net income (loss) from investment fund affiliates (2)		22,505			37,400			(39.8	)%
Net realized gains (losses) on investments		8,410			(75,981	)		*NM
Net realized and unrealized gains (losses) on investment and other derivative instruments (3)		(3,598	)		(7,383	)		51.3	%

(1)	Net investment income relating to P&C operations includes the net investment income related to the net results from structured products.
(2)	The Company generally records the income related to alternative fund affiliates on a one-month lag and the private investment fund affiliates on a three-month lag in order for the Company to meet the filing deadlines for its periodic reports.
(3)	For a summary of realized and unrealized gains and losses on all derivative instruments, see Item 1, Note 6, “Derivative Instruments,” to the Unaudited Consolidated Financial Statements included herein.
*	NM - Not Meaningful

          Net investment income related to P&C business decreased in the six months ended June 30, 2012 as compared to the same period of 2011 due primarily to a reduction in investment yields and cash outflows from the investment portfolio.

          Net income from investment fund affiliates decreased in the six months ended June 30, 2012 as compared to the same period of 2011. This was driven by solid results from alternative fund affiliates in the first six months of 2012 as compared to strong results in the six months ended June 30, 2011 across both alternative and private fund affiliates.

          The Company manages its fixed income portfolio in accordance with investment authorities approved by the Risk and Finance Committee of the Board of Directors of XL-Ireland. The following is a summary of the investment portfolio returns for the six months ended June 30, 2012 and 2011 of the fixed income and non-fixed income portfolios:

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	Six Months Ended June 30,
	2012 (1)			2011 (1)
Total Return on Investments		2.9	%		2.4	%
P&C fixed income portfolio		2.6	%		2.5	%
Life fixed income portfolio		4.4	%		2.1	%
Other Portfolios
Alternative portfolio (2)		1.9	%		4.4	%
Equity portfolio		4.3	%		6.1	%
High-Yield fixed income portfolio		4.0	%		3.0	%

(1)

Portfolio returns are calculated by dividing the sum of gross investment income or net income from investment affiliates, realized gains (losses) and unrealized gains (losses) by the average market value of each portfolio. The performance of investment portfolios are measured on a local currency basis. For aggregate performance calculation, respective local currency balances are translated to U.S. dollars at quarter end rates to calculate composite portfolio results.

(2)

Performance on the alternative portfolio reflects the three months ended May 31, 2012 and 2011, respectively.

Net Realized Gains and Losses on Investments and Other-than-Temporary Declines in the Value of Investments

          Net realized gains on investments of $8.4 million in the six months ended June 30, 2012 included net realized losses of approximately $49.2 million related to the write-down of certain of the Company’s AFS investments as well as losses arising on targeted sales of European financial exposures. In addition, included in the net realized gains noted above are net realized gains of $57.6 million due primarily to gains from a repositioning of the Agency RMBS portfolio and net realized gains of $33.8 million on sales of equity securities.

          The significant components of the net impairment charges of $49.2 million for the six months ended June 30, 2012 were:

• $31.3 million for structured securities where the Company determined that the likely recovery on these securities was below the carrying value and, accordingly, recorded an impairment of the securities to the discounted value of the cash flows expected to be received on these securities.

• $13.2 million related to medium term notes backed primarily by European investment grade credit. On certain notes, management concluded that expected future returns on the underlying assets were not sufficient to support the previously reported amortized cost. The Company also adjusted the estimated remaining holding period of certain notes resulting in a shorter reinvestment spectrum.

• $2.2 million related to currency losses primarily arising on U.K. sterling denominated securities held in U.S. dollar portfolios.

• $1.5 million related to equities as the holding was more than 50% impaired.

• $1.0 million for corporate securities, excluding medium term notes, principally on hybrid securities.

          Net realized losses on investments during the six months ended June 30, 2011 included net realized losses of $64.6 million related to the write-down of certain of the Company’s fixed income, equity and other investments with respect to which the Company determined that there was an other-than-temporary decline in the value of those investments as well as $11.4 million from sales of investments principally on European financials and non-Agency RMBS.

Net Realized and Unrealized Gains and Losses on Derivatives

          Net realized and unrealized losses on derivatives of $3.6 million in the six months ended June 30, 2012 resulted from the Company’s investment strategy to manage interest rate risk, foreign exchange risk and credit risk, and to replicate permitted investments. For a further discussion see Item 1, Note 6, “Derivative Instruments,” to the Unaudited Consolidated Financial Statements included herein.

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Other Revenues and Expenses

          The following table sets forth other revenues and expenses of the Company for the six months ended June 30, 2012 and 2011:

	Six Months Ended June 30,
(U.S. dollars in thousands)	2012			2011			% change
Net income (loss) from operating affiliates (1)	$	38,814		$	59,887			(35.2	)%
Exchange gains (losses)		5,258			(1,016	)		NM*
Corporate operating expenses		(94,321	)		(75,258	)		25.3	%
Interest expense (2)		(53,409	)		(83,498	)		(36.0	)%
Income tax (benefit) expense		51,362			(7,971	)		NM*

(1)	The Company generally records the income related to certain operating affiliates on a three-month lag based upon the availability of the information provided by the investees.
(2)	Interest expense excludes interest expense related to structured products recorded in the Insurance and Reinsurance segments.
*	NM – Not meaningful

          The following table sets forth the net income (loss) from operating affiliates for the six months ended June 30, 2012 and 2011:

	Six Months Ended June 30,
(U.S. dollars in thousands)	2012		2011			% change
Net income (loss) from financial operating affiliates	$	-	$	(1,018	)		(100.0	)%
Net income (loss) from investment manager affiliates	$	24,612	$	46,512			(47.1	)%
Net income (loss) from strategic operating affiliates		14,202		14,393			(1.3	)%
Total	$	38,814	$	59,887			(35.2	)%

          The financial operating affiliate loss in the six months ended June 30, 2011 is wholly attributable to a write down in the value of one investment following a restructuring.

          Investment manager affiliate income decreased in the six months ended June 30, 2012 as compared to the same period in the prior year due to especially strong performance by the investment manager affiliates and the achievement of results that surpassed certain fee hurdles by various funds under management in the second quarter of 2011, as compared to solid results for the investment manager affiliates in the six months ended June 30, 2012.

          Strategic operating affiliate income for the six months ended June 30, 2012 was in line with the results for same period in the prior year.

          Foreign exchange gains in the six months ended June 30, 2012 were a result of an overall strengthening of the value of the U.S. dollar against the Company’s major currency exposures, which include the Euro and the Swiss franc. In the six months ended June 30, 2011, the foreign exchange losses were due to a weaker U.S. dollar against all of the Company’s major currency exposures, particularly the Swiss franc and the Euro.

          Corporate operating expenses increased in the six months ended June 30, 2012 as compared to the same period in the prior year primarily as a result of certain strategic corporate initiatives taking place in 2012.

          Interest expense decreased in the six months ended June 30, 2012 as compared to the same period in the prior year as a result of the overall reduction in the Company’s debt following the repayment at maturity on January 15, 2012 of $600 million 6.5% XLCFE Notes, the purchase and retirement of the $575 million 8.25% Senior Notes in August 2011, offset by the issuance of $400 million 5.75% Senior Notes in September 2011. For further information about these debt financing transactions see Item 8, Note 13, “Notes Payable and Debt Financing,” to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011.

          A tax charge of $51.4 million was incurred in the six months ended June 30, 2012. The Company recognized a tax benefit of $8.0 million in the six months ended June 30, 2011, which included a benefit of $11.9 million arising as a result of a change in an overseas tax rule adopted in the three months ended June 30, 2011. Excluding this benefit, the increase in the tax charge incurred in the six months ended June 30, 2012 compared to the same period of 2011 arose principally from higher income in taxable jurisdictions in the six months ended June 30, 2012.

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BALANCE SHEET ANALYSIS

Investments

          The primary objectives of the investment strategy are to support the liabilities arising from the operations of the Company, generate stable investment income and build book value for the Company over the longer term. The strategy strives to balance investment returns against market and credit risk. The Company’s overall investment portfolio is structured to take into account a number of variables including local regulatory requirements, business needs, collateral management and risk tolerance.

          At both June 30, 2012 and December 31, 2011, total investments, cash and cash equivalents, accrued investment income and net receivable/(payable) for investments sold/(purchased) were approximately $36 billion. The following table summarizes the composition of the Company’s invested assets at June 30, 2012 and December 31, 2011:

	June 30, 2012					December 31, 2011
(U.S. dollars in thousands)	Carrying Value (1)		Percent of Total			Carrying Value (1)		Percent of Total
Cash and cash equivalents	$	3,311,146		9.3	%	$	3,825,125		10.7	%
Net receivable/ (payable) for investments sold/ (purchased)		5,866		0.0	%		1,233		0.0	%
Accrued investment income		323,898		0.9	%		331,758		0.9	%
Short-term investments		227,380		0.7	%		359,063		1.0	%
Fixed maturities - AFS:
U.S. Government and Government-Related/Supported (2)		2,101,625		5.9	%		1,990,983		5.5	%
Corporate - Financials (3) (4) (5)		2,809,953		7.9	%		3,038,398		8.5	%
Corporate - Non Financials (4)		6,911,200		19.4	%		7,070,224		19.7	%
RMBS – Agency		5,202,313		14.6	%		5,379,406		15.0	%
RMBS – Non-Agency		584,543		1.6	%		641,815		1.8	%
CMBS		904,792		2.6	%		974,835		2.8	%
CDO		650,018		1.8	%		658,602		1.8	%
Other asset-backed securities (5)		1,407,738		4.0	%		1,340,249		3.7	%
U.S. States and political subdivisions of the States		1,764,431		5.0	%		1,797,378		5.0	%
Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported (2)		3,906,189		11.0	%		3,298,135		9.2	%
Total fixed maturities - AFS	$	26,242,802		73.8	%	$	26,190,025		73.0	%
Fixed maturities - HTM:
U.S. Government and Government-Related/Supported (2)		10,458		0.0	%		10,399		0.0	%
Corporate - Financials (3) (4) (5)		257,713		0.7	%		305,122		0.9	%
Corporate - Non Financials (4)		1,129,320		3.2	%		985,087		2.7	%
RMBS – Non-Agency		81,028		0.2	%		80,955		0.2	%
CMBS		12,546		0.0	%		-		0.0	%
Other asset-backed securities (5)		217,347		0.6	%		288,741		0.8	%
Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported (2)		1,007,945		2.8	%		998,674		2.8	%
Total fixed maturities - HTM	$	2,716,357		7.5	%	$	2,668,978		7.4	%
Equity securities (6)		529,056		1.5	%		468,197		1.3	%
Investments in affiliates		1,024,353		2.9	%		1,052,729		2.9	%
Other investments		1,208,220		3.4	%		985,262		2.8	%
Total investments and cash and cash equivalents	$	35,589,078		100.0	%	$	35,882,370		100.0	%

(1)	Carrying values represents the fair value for available for sale fixed maturities and amortized cost for held to maturity securities.
(2)	U.S. Government and Government-Related/Supported and Non U.S. Sovereign Government, Provincial, Supranational and Government-Related include government-related securities with an amortized cost of $2,012.4 million and $1,878.3 million and fair value of $2,066.0 million and $1,915.6 million at June 30, 2012 and December 31, 2011, respectively, and U.S. Agencies with an amortized cost of $455.0 million and $494.0 million and fair value of $500.5 million and $541.2 million at June 30, 2012 and December 31, 2011, respectively.
(3)	Included in Corporate – Financials are gross unrealized losses of $74.7 million and $108.8 million on Tier One and Upper Tier Two securities of financial institutions (“Hybrids”) with fair value of $346.2 million and $386.1 million at June 30, 2012 and December 31, 2011, respectively, as well as gross unrealized losses of $36.5 million and $70.1 million on subordinated debt (including lower Tier Two securities) with a fair value of $623.6 million and $701.3 million at June 30, 2012 and December 31, 2011, respectively.
(4)	Included within Corporate are certain floating rate medium term notes supported primarily by pools of European investment grade credit with varying degrees of leverage. The notes have a fair value of $186.1 million and $266.0 million and an amortized cost of $199.1 million and $297.7 million at June 30, 2012 and December 31, 2011, respectively. These securities have been allocated ratings of the underlying pool of securities. These notes allow the investor to participate in cash flows of the underlying bonds including certain residual values, which could serve to either decrease or increase the ultimate values of these notes.
(5)	At June 30, 2012, Covered Bonds within Fixed maturities – AFS with a carrying value of $500.5 million and Covered Bonds within Fixed maturities – HTM with a carrying value of $8.1 million have been included within Other asset-backed securities to align the Company’s classification to market indices. Covered Bonds were included in Corporate prior to January 1, 2012. At December 31, 2011, Covered Bonds within Fixed maturities – AFS with a carrying

63

	value of $353.9 million and Covered Bonds within Fixed maturities – HTM with a carrying value of $8.1 million have been reclassified from Corporate to Other asset-backed securities to conform to the current period presentation.
(6)	Included within equity securities are investments in fixed income funds of $95.8 million and $91.6 million at June 30, 2012 and December 31, 2011, respectively.

          The Company reviews its corporate debt investments on a regular basis to consider its concentration, credit quality and compliance with established guidelines. At both June 30, 2012 and December 31, 2011, the average credit quality of the Company’s total fixed income portfolio (including fixed maturities, short-term investments, cash and cash equivalents and net receivable/(payable) for investment sold/(purchased)) was “Aa2/AA”. Included in the table below are the credit ratings of the fixed income portfolio excluding operating cash at June 30, 2012 and December 31, 2011:

	June 30, 2012					December 31, 2011
Investments by Credit Rating (1) (2) (U.S. dollars in millions)	Carrying Value		Percent of Total			Carrying Value		Percent of Total
AAA	$	16,350		51.1	%	$	16,276		51.1	%
AA		5,085		15.9	%		5,266		16.6	%
A		6,841		21.4	%		7,098		22.3	%
BBB		2,840		8.9	%		2,418		7.6	%
BB and below		826		2.6	%		718		2.3	%
Not rated		16		0.1	%		39		0.1	%
Total	$	31,958		100.0	%	$	31,815		100.0	%

(1)

At June 30, 2012 and December 31, 2011, $186.1 million and $266.0 million or 0.6% and 0.8% of the portfolio, respectively, represents medium term notes rated at the average credit rating of the underlying asset pools backing the notes.

(2)

The credit rating for each asset reflected above was principally determined based on the weighted average rating of the individual securities from Standard & Poor’s, Moody’s Investors Service and Fitch Ratings (when available). U.S. Agency debt and related mortgage backed securities, whether with implicit or explicit government support, reflect the credit quality rating of the U.S. government for the purpose of these calculations.

Gross and Net Unrealized Gains and Losses on Investments

          The Company had gross unrealized losses totaling $576.8 million on 1,308 securities out of a total of 7,156 held at June 30, 2012 in its AFS portfolio and $12.5 million on 15 securities out of a total of 208 held in its HTM portfolio, which it considers to be temporarily impaired or with respect to which it reflects non-credit losses on OTTI. Individual security positions comprising this balance have been evaluated by management, in conjunction with its investments managers, to determine the severity of these impairments and whether they should be considered other-than-temporary.

          Gross unrealized losses can be attributed to the following significant drivers:

•	gross unrealized losses of $165.6 million related to the Non-Agency RMBS portfolio (which consists of the Company’s holdings of sub-prime Non-Agency RMBS, second liens, ABS CDOs with sub-prime collateral, Alt-A and Prime RMBS), which had a fair value of $665.6 million at June 30, 2012. The Company has incurred realized losses, consisting of charges for OTTI and realized losses from sales, of approximately $1.4 billion since the beginning of 2007 through June 30, 2012 on these asset classes.
•	gross unrealized losses of $163.8 million related to the Company’s Life operations investment portfolio, which had a fair value of $6.4 billion at June 30, 2012. Of these gross unrealized losses, $88.4 million related to $1.1 billion of exposures to corporate financial institutions, including $281.1 million related to Tier One and Upper Tier Two securities.
	At June 30, 2012, this portfolio had an average interest rate duration of 8.6 years, primarily denominated in U.K. sterling and Euros. As a result of the long duration, significant gross losses have arisen as the fair values of these securities are more sensitive to prevailing government interest rates and credit spreads. This portfolio is generally matched to corresponding long duration liabilities. A hypothetical parallel increase in interest rates and credit spreads of 50 and 25 basis points, respectively, would increase the unrealized losses related to this portfolio at June 30, 2012 by approximately $280.0 million and $107.8 million, respectively, on both the AFS and HTM Life operations investments portfolios.
	Given the long term nature of the Life operations investments portfolio, the level of credit spreads on financial institutions at June 30, 2012 relative to historical averages within the U.K. and Euro-zone, and the Company’s liquidity needs at June 30, 2012, the Company believes that these assets will continue to be held until such time as they mature, or credit spreads on financial institutions revert to levels more consistent with historical averages.
•	gross unrealized losses of $154.1 million related to the P&C portfolios of Core CDO holdings (defined by the Company as investments in non-subprime CDOs), which consisted primarily of collateralized loan obligations (“CLOs”) and had a fair value of $650.0 million at June 30, 2012.

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• gross unrealized losses of $73.8 million related to the corporate holdings within the Company’s non-life fixed income portfolios, which had a fair value of $7.7 billion at June 30, 2012. Of the gross unrealized losses, $36.0 million relate to financial institutions. In addition, $14.3 million relate to medium term notes primarily supported by pools of European investment grade credit with varying degrees of leverage. These had a fair value of $186.1 million at June 30, 2012. Management believes that expected cash flows from these bonds over the expected holding period will be sufficient to support the remaining reported amortized cost.

          The following is the maturity profile of the available for sale fixed income securities that were in a gross unrealized loss position at June 30, 2012:

	June 30, 2012
(U.S. dollars in thousands) Security Type and Length of Time in a Continual Unrealized Loss Position		Amount ofUnrealizedLoss			Fair Value of Securities in an Unrealized Loss Position
Fixed Maturities and Short-Term Investments
Less than 6 months	$	(11,993	)	$	918,383
At least 6 months but less than 12 months		(14,305	)		376,786
At least 12 months but less than 2 years		(45,969	)		327,766
2 years and over		(476,700	)		2,041,010
Total	$	(548,967	)	$	3,663,945
Equities
Less than 6 months	$	(14,800	)	$	319,720
At least 6 months but less than 12 months		(13,071	)		102,484
Total	$	(27,871	)	$	422,204

          The following is the maturity profile of the AFS fixed income securities that were in a gross unrealized loss position at June 30, 2012:

	June 30, 2012
(U.S. dollars in thousands) Maturity profile in years of AFS fixed income securities in a gross unrealized loss position	Amount ofUnrealizedLoss			Fair Value of Securities in an Unrealized Loss Position
Less than 1 year remaining	$	(9,616	)	$	348,403
At least 1 year but less than 5 years remaining (1)		(68,189	)		932,774
At least 5 years but less than 10 years remaining (1)		(43,302	)		417,596
At least 10 years but less than 20 years remaining (1)		(45,193	)		248,718
At least 20 years or more remaining (1)		(27,139	)		186,723
RMBS - Agency		(2,476	)		114,691
RMBS - Non-Agency		(165,588	)		491,894
CMBS		(4,068	)		44,941
CDO		(154,095	)		640,745
Other asset-backed securities		(29,301	)		237,460
Total	$	(548,967	)	$	3,663,945

(1) Tier One and Upper Tier Two securities, representing committed term debt and hybrid instruments senior to the common and preferred equities of the financial institutions, are allocated based on the call date and medium term notes supported primarily by pools of European investment grade credit with varying degrees of leverage are allocated on contractual maturity.

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          The following is the maturity profile of the HTM fixed income securities that were in a gross unrealized loss position at June 30, 2012:

	June 30, 2012
(U.S. dollars in thousands) Maturity profile in years of HTM fixed income securities in a gross unrealized loss position	Amount ofUnrealizedLoss			Fair Value of Securities in an Unrealized Loss Position
Less than 1 year remaining	$	-		$	-
At least 1 year but less than 5 years remaining		(307	)		8,935
At least 5 years but less than 10 years remaining		(647	)		21,291
At least 10 years but less than 20 years remaining		(4,928	)		24,599
At least 20 years or more remaining		(6,139	)		47,108
RMBS - Non-Agency		(15	)		4,996
Other asset-backed securities		(464	)		8,972
Total	$	(12,500	)	$	115,901

          Factors considered in determining that additional OTTI charges were not warranted include management’s consideration of current and near term liquidity needs along with other available sources, and in certain instances an evaluation of the factors and time necessary for recovery. For further information, see Item 1, Note 5, “Investments,” to the Unaudited Consolidated Financial Statements included herein.

          As noted in Item 8, Note 2, “Significant Accounting Policies,” to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011, the determination of the amount of OTTI varies by investment type and is based upon management’s periodic evaluation and assessment of known and inherent risks associated with the respective asset class. Such evaluations and assessments are revised as conditions change and new information becomes available. Management considers a wide range of factors about the securities and uses its best judgment in evaluating the cause of the decline in the estimated fair value of the security and in assessing the prospects for near-term recovery. Inherent in management’s evaluation of the security are assumptions and estimates about the operations of the issuer and its future earnings potential. Management updates its evaluations regularly and reflects additional impairments in net income as determinations are made. Management’s determination of the amount of the impairment taken on investments is highly subjective and could adversely impact the Company’s results of operations. There can be no assurance that management has accurately assessed the level of OTTI taken and reflected in the Company’s financial statements. Furthermore, additional impairments may need to be taken in the future. Historical trends may not be indicative of future impairments.

          Levels of write down or OTTI are also impacted by the Company’s assessment of the intent to sell securities that have declined in value prior to recovery. If, due to changes in circumstances, the Company determines to reposition or realign portions of the portfolio and the Company determines not to hold certain securities in an unrealized loss position to recovery, then the Company will incur OTTI charges, which could be significant.

          Gross Unrealized Gains and Losses

          Management, in its assessment of whether securities in a gross unrealized loss position are temporarily impaired, considers the significance of the impairments. These securities include gross unrealized losses of $165.6 million on non-Agency RMBS, $154.1 million on Core CDOs and $4.1 million on CMBS holdings. At June 30, 2012, the Company had structured credit securities with gross unrealized losses of $55.2 million, which had a fair value of $26.3 million and a cumulative fair value decline of greater than 50% of amortized costs. All of these are mortgage-and asset-backed securities. The Company has evaluated each of these securities in conjunction with its investment manager service providers and believes it is more likely than not that the issuer will be able to fund sufficient principal and interest payments to support the current amortized cost.

          Net Unrealized Gains and Losses – Corporate Financial Sector Securities

          At June 30, 2012, approximately $1.1 billion of the Company’s $3.1 billion in corporate financial sector securities was held in the portfolios supporting the Company’s Life operations portfolios representing 71.1% of the gross unrealized losses on this asset class. The assets associated with that business are more heavily weighted towards longer term securities from financial institutions, including a significant portion of the Company’s Tier One and Upper Tier Two securities, representing committed term debt and hybrid instruments senior to the common and preferred equity of the financial institutions. Financials held in Life operations portfolios accounted for $71.0 million of the Company’s net unrealized loss at June 30, 2012. At June 30, 2012, approximately 42.7% of the overall sensitivity to interest rate risk and 35.1% to credit risk was related to the Life operations portfolios, despite these portfolios accounting for only 20.2% of the fixed income portfolio.

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          Net Unrealized Gains and Losses – Structured Securities

          The following table details the current exposures to structured credit portfolios excluding Agency RMBS within the Company’s fixed income portfolio as well as the current net unrealized (loss) gain position at June 30, 2012 and December 31, 2011:

	June 30, 2012								December 31, 2011
(U.S. dollars in thousands)	Carrying Value		Percent of Fixed Income Portfolio			Net Unrealized Gain (Loss)			Carrying Value		Percent of Fixed Income Portfolio			Net Unrealized Gain (Loss)
RMBS - Non-Agency:
Sub-prime first lien mortgages	$	267,772		0.9	%	$	(100,363	)	$	295,498		1.0	%	$	(136,981	)
Alt-A mortgages		125,323		0.4	%		(25,056	)		114,506		0.4	%		(39,659	)
Second lien mortgages (including sub-prime second lien mortgages)		25,728		0.1	%		(3,217	)		26,461		0.1	%		(6,076	)
Prime RMBS		133,425		0.5	%		(15,385	)		158,264		0.5	%		(26,328	)
Other assets		113,323		0.4	%		255			128,041		0.4	%		5,790
Total exposure to Non-Agency RMBS	$	665,571		2.3	%	$	(143,766	)	$	722,770		2.4	%	$	(203,254	)
CMBS		917,338		3.2	%		61,990			974,835		3.3	%		47,152
Core CDOs (1)		650,018		2.2	%		(146,000	)		662,949		2.3	%		(185,611	)
Other Structured		1,625,085		5.6	%		15,673			1,635,162		5.6	%		7,732
Total Non-Agency Structured Securities	$	3,858,012		13.3	%	$	(212,103	)	$	3,995,716		13.6	%	$	(333,981	)

(1) The Company defines Core CDOs as investments in non-subprime collateralized debt obligations, which primarily consisted of CLOs.

          At June 30, 2012, the Company’s sub-prime, Alt-A and CDO exposures had adequate underlying asset characteristics and the Company believed at such date that the current amortized cost levels were at or below the discounted cash flow value of the holdings, based on an analysis of subordination levels relative to current expectations of prepayment rates, probability of default and loss severity in the event of default. The Company had approximately $63.3 million of Non-Agency RMBS downgraded during the three months ended June 30, 2012. However, 56.3% of the Company’s holdings in Non-Agency RMBS remain rated investment grade at June 30, 2012.

          Refer to “Significant Items Affecting the Results of Operations” for further discussion surrounding the impact of credit market movements on the Company’s investment portfolio.

European Sovereign Debt Crisis

          The ongoing global financial crisis has led to the deterioration of economies globally, as sovereign governments have reacted to the crisis by further increasing public expenditures in order to provide stimulus and security, which has created significant budgetary shortfalls. Several key nations within the European Union – particularly Greece, Italy, Ireland, Portugal and Spain (“GIIPS”) – have suffered a high level of fiscal distress and economic vulnerability due to overreliance on external credit sources and imprudent borrowing and other monetary practices. This has raised doubts within the global financial community as to whether these sovereign nations will remain able to service their own debt obligations both at a national and local level and as to whether the Euro will remain the currency for the European Union.

          The Company’s primary exposure to this European sovereign debt crisis is from direct investment in fixed maturity securities issued by GIIPS national and local governments, as well as from fixed maturity securities issued by certain financial and non-financial corporate entities operating within GIIPS. The Company continues to monitor its financial exposure to this crisis, and continually assesses the impact of a potential default by any of GIIPS on their respective debt issuances, including the associated impact on non-sovereign entities in these five nations in the event of such a default. With regard to non-sovereign securities, the Company considers a security to be at risk if the security issuer’s main operations are physically located within GIIPS, as opposed to where the issuer is legally domiciled.

          The Company currently has no unfunded investment exposures or commitments to either sovereign or non-sovereign entities within these EU nations. The Company does invest in various alternative and private investment funds that from time to time may invest in securities or investments related to these five EU nations. Currently, these are not material exposures.

          The following is an analysis of the Company’s AFS and HTM fixed maturity investment exposures related to this GIIPS crisis at June 30, 2012 and December 31, 2011 and the contractual maturities of these securities. Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

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	June 30, 2012				December 31, 2011
(U.S. dollars in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Fixed maturities GIIPS - AFS
Sovereign investments – National Governments	$	5,368	$	4,730	$	6,601	$	5,927
Non-Sovereign investments – Financial Institutions		372		325		6,001		4,626
Non-Sovereign investments – Non-Financial Institutions		112,581		106,122		138,834		131,890
Structured Credit (1)		10,647		11,077		22,172		19,417
Total fixed maturities GIIPS - AFS	$	128,968	$	122,254	$	173,608	$	161,860
Due less than one year	$	12,283	$	12,542	$	13,824	$	14,028
Due after 1 through 5 years		30,908		29,556		32,992		31,050
Due after 5 through 10 years		49,346		48,635		72,988		70,651
Due after 10 years		36,431		31,521		53,804		46,131
	$	128,968	$	122,254	$	173,608	$	161,860
Fixed maturities GIIPS - HTM
Sovereign investments – National Governments	$	11,828	$	8,725	$	11,738	$	8,739
Sovereign investments – Local Governments		-		-		9,360		7,649
Non-Sovereign investments – Non-Financial Institutions		63,844		55,778		72,782		65,380
Total fixed maturities GIIPS - HTM	$	75,672	$	64,503	$	93,880	$	81,768
Due less than one year	$	6,199	$	6,208	$	6,264	$	6,233
Due after 1 through 5 years		4,187		4,038		4,199		4,110
Due after 5 through 10 years		12,017		11,960		20,705		18,260
Due after 10 years		53,269		42,297		62,712		53,165
Total	$	75,672	$	64,503	$	93,880	$	81,768

(1) During 2012, Covered Bonds have been included within Other asset-backed securities under Structured Credit to align the Company’s classification to market indices. Prior periods have been reclassified to conform to current period presentation.

          The following table details the gross and net unrealized (loss) gain position at June 30, 2012 relating to GIIPS:

	June 30, 2012
(U.S. dollars in thousands)	Greece			Italy			Ireland			Portugal		Spain			TOTAL
Gross Unrealized (Losses) - GIIPS
Sovereign investments – National Governments	$	-		$	(3,741	)	$	-		$	-	$	-		$	(3,741	)
Sovereign investments – Local Governments		-			-			-			-		-			-
Non-Sovereign investments – Financial Institutions		-			-			(47	)		-		-			(47	)
Non-Sovereign investments – Non-Financial Institutions		(37	)		(9,468	)		-			-		(7,540	)		(17,045	)
Structured Credit (1)		-			(1,127	)		-			-		-			(1,127	)
Total gross unrealized gains (losses) relating to GIIPS	$	(37	)	$	(14,336	)	$	(47	)	$	-	$	(7,540	)	$	(21,960	)
Net Unrealized Gains (Losses) - GIIPS
Sovereign investments – National Governments	$	-		$	(638	)	$	-		$	-	$	-		$	(638	)
Sovereign investments – Local Governments		-			-			-			-		-			-
Non-Sovereign investments – Financial Institutions		-			-			(47	)		-		-			(47	)
Non-Sovereign investments – Non-Financial Institutions		254			(2,369	)		-			-		(4,344	)		(6,459	)
Structured Credit (1)		-			(1,127	)		1,557			-		-			430
Total net unrealized gains (losses) relating to GIIPS	$	254		$	(4,134	)	$	1,510		$	-	$	(4,344	)	$	(6,714	)

(1) Covered Bonds have been included within Other asset-backed securities under Structured Credit to align the Company’s classification to market indices. Prior periods have been reclassified to conform to current period presentation.

          In addition to the direct investment portfolio considerations discussed above, as an international (re)insurance company, European credit exposures may exist for the Company within unpaid losses and loss expenses recoverable and reinsurance balances receivable. For further details on these balances including the names of the Company’s most significant reinsurance counterparties, see Item 8, Note 9, “Reinsurance,” to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011. Other sources of potential exposure to European credit issues may exist within certain lines of insurance or reinsurance business written (including but not limited to lines such as surety, business interruption, and political risk), or

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within underlying investments held in securitized financial instruments or in structured transactions in which the Company has an interest. Management considers these potential exposures as part of its ongoing enterprise risk management processes.

Fair Value Measurements of Assets and Liabilities

          As described in Item 1, Note 3, “Fair Value Measurements,” to the Unaudited Consolidated Financial Statements included herein, effective January 1, 2008, the Company adopted the authoritative guidance on fair value measurements and, accordingly, has provided required disclosures by level within the fair value hierarchy of the Company’s assets and liabilities that are carried at fair value. As defined in the hierarchy, those assets and liabilities categorized as Level 3 have valuations determined using unobservable inputs. Unobservable inputs may include the entity’s own assumptions about market participant assumptions, applied to a modeled valuation, however, this is not the case with respect to the Company’s Level 3 assets and liabilities. The vast majority of the assets and liabilities classified as Level 3 are made up of those securities for which the values were obtained from brokers where either significant inputs were utilized in determining the value that were difficult to corroborate with observable market data, or sufficient information regarding the specific inputs utilized by the broker was not obtained to support a Level 2 classification or the Company utilized internal valuation models.

          Controls over Valuation of Financial Instruments

          The Company performs regular reviews of the prices received from its third party valuation sources to assess if the prices represent a reasonable estimate of the fair value. This process is completed by investment and accounting personnel who are independent of those responsible for obtaining the valuations. The approaches taken by the Company include, but are not limited to, annual reviews of the controls of the external parties responsible for sourcing valuations which are subjected to automated tolerance checks, quarterly reviews of the valuation sources and dates, and monthly reconciliations between the valuations provided by our external parties and valuations provided by our third party investment managers at a portfolio level.

          In addition, the Company assesses the effectiveness of valuation controls performed by external parties responsible for sourcing appropriate valuations from third parties on the Company’s behalf. The approaches taken by these external parties to gain comfort include, but are not limited to, comparing valuations between external sources, completing recurring reviews of third party pricing services’ methodologies and reviewing controls of the third party service providers to support the completeness and accuracy of the prices received. Where broker quotes are the primary source of the valuations, sufficient information regarding the specific inputs utilized by the brokers is generally not available to support a Level 2 classification. The Company obtains the majority of broker quoted values from third party investment managers who perform independent verifications of these valuations using pricing matrices based upon information gathered by market traders. In addition, for the majority of these securities, the Company compares the broker quotes to independent valuations obtained from third party pricing vendors, which may also consist of broker quotes, to assess if the prices received represent a reasonable estimate of the fair value.

          Valuation Methodology of Level 3 Assets and Liabilities

          Refer to Item 1, Note 3, “Fair Value Measurements,” of the Unaudited Consolidated Financial Statements included herein, for a description of the valuation methodology utilized to value Level 3 assets and liabilities, how the valuation methodology is validated as well as further details associated with various assets classified as Level 3. At June 30, 2012, the Company did not have any liabilities that were carried at fair value based on Level 3 inputs other than derivative instruments in a liability position at June 30, 2012.

          Fair Value of Level 3 Assets and Liabilities

          At June 30, 2012, the fair value of Level 3 assets and liabilities as a percentage of the Company’s total assets and liabilities that are carried at fair value was as follows:

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(U.S. dollars in thousands)	Total Assets and Liabilities Carried at Fair Value at June 30,2012		Fair Value of Level 3 Assets and Liabilities		Level 3 Assets and Liabilities as a Percentage of Total Assets and Liabilities Carried at Fair Value, by Class
Assets
Fixed maturities, at fair value
U.S. Government and Government Agency-Related/Supported	$	2,101,625	$	-		0.0	%
Corporate (1)		9,721,153		33,511		0.3	%
RMBS – Agency		5,202,313		52,588		1.0	%
RMBS – Non-Agency		584,543		1,596		0.3	%
CMBS		904,792		-		0.0	%
CDO		650,018		642,179		98.8	%
Other asset-backed securities (1)		1,407,738		25,248		1.8	%
U.S. States and political subdivisions of the States		1,764,431		-		0.0	%
Non-U.S. Sovereign Government, Supranational and Government-Related		3,906,189		-		0.0	%
Total Fixed maturities, at fair value	$	26,242,802	$	755,122		2.9	%
Equity securities, at fair value		529,056		-		0.0	%
Short-term investments, at fair value		227,380		-		0.0	%
Total investments available for sale	$	26,999,238	$	755,122		2.8	%
Cash equivalents (2)		2,461,281		-		0.0	%
Other investments (3)		894,203		117,765		13.2	%
Other assets (4)		53,430		-		0.0	%
Total assets carried at fair value	$	30,408,152	$	872,887		2.9	%
Liabilities
Financial instruments sold, but not yet purchased (5)	$	28,198	$	-		0.0	%
Other liabilities (6)		46,525		35,947		77.3	%
Total liabilities carried at fair value	$	74,723	$	35,947		48.1	%

(1)	During 2012, Covered Bonds previously included as Corporate securities are now classified as Other asset-backed securities to align the Company’s classification to market indices. At June 30, 2012, these securities had a fair value of $500.5 million.
(2)	Cash equivalents balances subject to fair value measurements include certificates of deposit and money market funds.
(3)	The Other investments balance excludes certain structured transactions including certain investments in project finance transactions and a payment obligation (for further information, see Item 8, Note 7, “Other Investments,” to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011) that has provided liquidity financing to a structured credit vehicle as a part of a third party medium term note facility. These Other investments are carried at amortized cost that totaled $314.0 million at June 30, 2012 and $323.7 million at December 31, 2011.
(4)	Other assets include derivative instruments, reported on a gross basis.
(5)	Financial instruments sold, but not yet purchased are included within “Net payable for investments purchased” on the balance sheet.
(6)	Other liabilities include derivative instruments, reported on a gross basis.

          At June 30, 2012, the Company’s Level 3 assets represented approximately 2.9% of assets that are measured at fair value and less than 2% of total assets. The Company’s Level 3 liabilities represented approximately 48.1% of liabilities that are measured at fair value and less than 1% of total liabilities at June 30, 2012.

          Changes in the Fair Value of Level 3 Assets and Liabilities

          See Item 1, Note 3, “Fair Value Measurements,” to the Unaudited Consolidated Financial Statements included herein, for an analysis of the change in fair value of Level 3 Assets and Liabilities.

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Unpaid Losses and Loss Expenses

          The Company establishes reserves to provide for estimated claims, the general expenses of administering the claims adjustment process and losses incurred but not reported. These reserves are calculated using actuarial and other reserving techniques to project the estimated ultimate net liability for losses and loss expenses. The Company’s reserving practices and the establishment of any particular reserve reflects management’s judgment concerning sound financial practice and do not represent any admission of liability with respect to any claims made against the Company.

          Unpaid losses and loss expenses totaled $20.0 billion and $20.6 billion at June 30, 2012 and December 31, 2011, respectively. The table below represents a reconciliation of the Company’s P&C unpaid losses and loss expenses for the six months ended June 30, 2012:

(U.S. dollars in thousands)	Gross unpaid losses and loss expenses			Unpaid losses and loss expenses recoverable			Net unpaid losses and loss expenses
Balance at December 31, 2011	$	20,613,901		$	(3,629,928	)	$	16,983,973
Losses and loss expenses incurred		2,000,688			(320,268	)		1,680,420
Losses and loss expenses paid/recovered		(2,555,355	)		625,458			(1,929,897	)
Foreign exchange and other		(97,284	)		3,299			(93,985	)
Balance at June 30, 2012	$	19,961,950		$	(3,321,439	)	$	16,640,511

          While the Company reviews the adequacy of established reserves for unpaid losses and loss expenses regularly, no assurance can be given that actual claims made and payments related thereto will not be in excess of the amounts reserved. In the future, if such reserves develop adversely, such deficiency would have a negative impact on future results of operations. For further discussion, see Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations - Critical Accounting Policies and Estimates – 1) Unpaid Loss and Loss Expenses and Unpaid Loss and Loss Expenses Recoverable,” and Item 8, Note 10, “Losses and Loss Expenses,” to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011.

Unpaid Losses and Loss Expenses Recoverable and Reinsurance Balances Receivable

          In the normal course of business, the Company seeks to reduce the potential amount of loss arising from claims events by reinsuring certain levels of risk assumed in various areas of exposure with other insurers or reinsurers. While reinsurance agreements are designed to limit the Company’s losses from large exposures and permit recovery of a portion of direct unpaid losses, reinsurance does not relieve the Company of its ultimate liability to the Company’s insureds. Accordingly, the losses and loss expense reserves on the balance sheet represent the Company’s total unpaid gross losses. Unpaid losses and loss expense recoverable relates to estimated reinsurance recoveries on the unpaid loss and loss expense reserves.

          Unpaid losses and loss expense recoverables were $3.3 billion and $3.7 billion at June 30, 2012 and December 31, 2011, respectively. At both June 30, 2012 and December 31, 2011, reinsurance balances receivable were $0.2 billion. The table below presents the Company’s net paid and unpaid losses and loss expenses recoverable and reinsurance balances receivable at June 30, 2012 and December 31, 2011.

	June 30, 2012			December 31, 2011
Reinsurance balances receivable	$	261,795		$	263,877
Reinsurance recoverable on future policy benefits		21,189			25,020
Reinsurance recoverable on unpaid losses and loss expenses		3,381,381			3,685,260
Bad debt reserve on unpaid losses and loss expenses recoverable and reinsurance balances receivable		(98,550	)		(99,192	)
Net paid and unpaid losses and loss expenses recoverable and reinsurance balances receivable	$	3,565,815		$	3,874,965

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LIQUIDITY AND CAPITAL RESOURCES

          Liquidity is a measure of the Company’s ability to generate sufficient cash flows to meet the short and long-term cash requirements of the Company’s business operations. As a global insurance and reinsurance company, one of the Company’s principal responsibilities to its clients is to ensure that the Company has ready access to funds with which to settle large unforeseen claims. The Company would generally expect that positive cash flow from operations (underwriting activities and investment income) will be sufficient to cover cash outflows under most future loss scenarios. However, there is a possibility that unforeseen demands could be placed on the Company due to extraordinary events and, as such, the Company’s liquidity needs may change. Such events include, among other things, several significant catastrophes occurring in a relatively short period of time resulting in material incurred losses; rating agency downgrades of the Company’s core insurance and reinsurance subsidiaries that would require posting of collateral in connection with the Company’s letter of credit and revolving credit facilities, return of unearned premiums and/or the settlement of derivative transactions and large scale uncollectible reinsurance recoverables on paid losses (as a result of coverage disputes, reinsurers’ credit problems or decreases in the value of collateral supporting reinsurance recoverables), etc. Any one or a combination of such events may cause a liquidity strain for the Company. In addition, a liquidity strain could also occur in an illiquid market, such as that which was experienced in 2008. Investments that may be used to meet liquidity needs in the event of a liquidity strain may not be liquid, given inactive markets, or may have to be sold at a significant loss as a result of depressed prices. Because each subsidiary focuses on a more limited number of specific product lines than is collectively available from the consolidated group of companies, the mix of business tends to be less diverse at the subsidiary level. As a result, the probability of a liquidity strain, as described above, may be greater for individual subsidiaries than when liquidity is assessed on a consolidated basis. If such a liquidity strain were to occur in a subsidiary, XL-Ireland may be required to contribute capital to the particular subsidiary and/or curtail dividends from the subsidiary to support holding company operations, which may be difficult given that XL-Ireland is a holding company and has limited liquidity.

          A downgrade below “A–” of the Company’s principal insurance and reinsurance subsidiaries by either S&P or A.M. Best, which is two notches below the current S&P financial strength rating of “A” (Stable) and the A.M. Best financial strength rating of “A” (Stable) of these subsidiaries, may trigger cancelation provisions in a significant amount of the Company’s assumed reinsurance agreements and may potentially require the Company to return unearned premiums to cedants. In addition, due to collateral posting requirements under the Company’s letter of credit and revolving credit facilities, such a downgrade may require the posting of cash collateral in support of certain “in use” portions of these facilities. Specifically, a downgrade below “A–” by A.M. Best would constitute an event of default under the Company’s three largest credit facilities and may trigger such collateral requirements. In certain limited instances, such downgrades may require the Company to return cash or assets to counterparties or to settle derivative and/or other transactions with the respective counterparties. See Item 1A, “Risk Factors,” included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011.

Holding Company Liquidity

          As holding companies, XL-Ireland and XL-Cayman have no operations of their own and their assets consist primarily of investments in subsidiaries. XL-Ireland’s principal uses of liquidity are ordinary share-related transactions, including dividend payments to holders of its ordinary shares as well as share buybacks, capital investments in its subsidiaries and certain corporate operating expenses. XL-Cayman’s principal uses of liquidity are preference share related transactions, including dividend payments to its preference shareholders as well as preference share buybacks from time to time, interest and principal payments on debt and certain corporate operating expenses.

          As holding companies, XL-Ireland’s and XL-Cayman’s future cash flows largely depend on the availability of dividends or other statutorily permissible payments from subsidiaries. The ability to pay such dividends is limited by the applicable laws and regulations of the various countries and states in which these subsidiaries operate, including, among others, the Cayman Islands, Bermuda, the United States, New York, Ireland, Switzerland and the U.K. See Item 8, Note 23, “Statutory Financial Data,” to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011 for further discussion and details regarding the dividend capacity of the Company’s major operating subsidiaries. See also Item 1A, “Risk Factors – Our holding company structure and certain regulatory and other constraints affect our ability to pay dividends, make payments on our debt securities and make other payments,” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011. The ability to pay such dividends is also limited by the regulations of the Society of Lloyd’s and certain contractual provisions. No assurance can be given that the Company’s subsidiaries will pay dividends in the future to XL-Ireland and XL-Cayman.

          Under Irish law, share premium was required to be converted to “distributable reserves” for the Company to have the ability to pay cash dividends and redeem and buyback shares following the Redomestication. On July 23, 2010, the Irish High Court approved XL-Ireland’s conversion of share premium to $5.0 billion of distributable reserves, subject to the completion of certain formalities under Irish Company law. These formalities were completed in early August 2010. At June 30, 2012, XL-Ireland had $3.8 billion in distributable reserves.

          During 2009, management changed the internal ownership structure of certain of the Company’s operating subsidiaries in Bermuda and Ireland in order to more efficiently utilize capital and to improve overall liquidity. In connection with these changes,

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certain dividends were paid to XL-Cayman by operating subsidiaries. At June 30, 2012, XL-Ireland and XL-Cayman held cash and investments, net of liabilities associated with cash sweeping arrangements, of $(8.8) million and $1.2 billion, respectively, compared to $1.6 million and $2.0 billion, respectively, at December 31, 2011.

          All outstanding debt of the Company at June 30, 2012 and December 31, 2011 was issued by XL-Cayman except for the $600 million XLCFE Notes which were issued by XL Capital Finance (Europe) plc (“XLCFE”) and were repaid at maturity on January 15, 2012. Both XL-Cayman and XLCFE are wholly-owned subsidiaries of XL-Ireland. XL-Cayman’s outstanding debt is fully and unconditionally guaranteed by XL-Ireland. The Company’s ability to obtain funds from its subsidiaries to satisfy any of its obligations under guarantees is subject to certain contractual restrictions, applicable laws and statutory requirements of the various countries in which the Company operates, including, among others, Bermuda, the United States, Ireland, Switzerland and the U.K. At December 31, 2011, required statutory capital and surplus for the principal operating subsidiaries of the Company was $6.7 billion.

          XL-Ireland and its subsidiaries provide no guarantees or other commitments (express or implied) of financial support to the Company’s subsidiaries or affiliates, except for such guarantees or commitments that are in writing.

          See also the Unaudited Consolidated Statements of Cash Flows in Item 1, Financial Statements included herein.

Sources of Liquidity for the Company

          At June 30, 2012, the consolidated Company had cash and cash equivalents of approximately $3.3 billion as compared to approximately $3.8 billion at December 31, 2011. There are three main sources of cash flows for the Company – those provided by operations, investing activities and financing activities.

          Operating Cash Flows

          Historically, cash receipts from operations, consisting of premiums and investment income, generally have provided sufficient funds to pay losses as well as operating expenses of the Company’s subsidiaries and to fund dividends to XL-Ireland. Cash receipts from operations is generally derived from the receipt of investment income on the Company’s investment portfolio as well as the net receipt of premiums less claims and expenses related to the Company’s underwriting activities in its P&C operations as well as its Life operations segment. The Company’s operating subsidiaries provide liquidity in that premiums are generally received months or even years before losses are paid under the policies related to such premiums. Premiums and acquisition expenses are settled based on terms of trade as stipulated by an underwriting contract, and generally are received within the first year of inception of a policy when the premium is written, but can be up to three years on certain reinsurance business assumed. Operating expenses are generally paid within a year of being incurred. Claims, especially for casualty business, may take a much longer time before they are reported and ultimately settled, requiring the establishment of reserves for unpaid losses and loss expenses. Therefore, the amount of claims paid in any one year is not necessarily related to the amount of net losses incurred, as reported in the consolidated statement of income.

          During the six months ended June 30, 2012, net cash flows provided by operating activities were $483.6 million compared to net cash flows provided by operating activities of $107.3 million for the same period in 2011. The operating cash increase was primarily due to the increase in net income in the six months ended June 30, 2012 compared to the same period in the prior year.

          Investing Cash Flows

          Generally, positive cash flow from operations and financing activities is invested in the Company’s investment portfolio, including affiliates or the acquisition of subsidiaries.

          Net cash used in investing activities was $5.5 million in the six months ended June 30, 2012 compared to net cash provided of $84.4 million for the same period in 2011. These cash flows were associated with the normal purchase and sale of portfolio investments.

          Certain of the Company’s invested assets are held in trust and pledged in support of insurance and reinsurance liabilities as well as credit facilities. Such pledges are largely required by the Company’s operating subsidiaries that are “non-admitted” under U.S. state insurance regulations, in order for the U.S. cedant to receive statutory credit for reinsurance. Also, certain deposit liabilities and annuity contracts require the use of pledged assets. As further outlined in Item 1, Note 5, “Investments — Pledged Assets,” to the Unaudited Consolidated Financial Statements included herein, certain assets of the investment portfolio are collateralized for the Company’s letter of credit facilities. At June 30, 2012 and December 31, 2011, the Company had $17.5 billion and $17.2 billion in pledged assets, respectively.

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          Financing Cash Flows

          Cash flows related to financing activities include ordinary and preferred share related transactions, the payment of dividends, the issue or repayment of preference ordinary shares and deposit liability transactions. During the six months ended June 30, 2012, net cash flows used in financing activities were $988.4 million. Net cash outflows related primarily to the buybacks of the Company’s ordinary shares and repayment of debt as described below.

          On February 27, 2012, the Company announced that its Board of Directors approved a share buyback program, authorizing the Company to purchase up to $750 million of its ordinary shares. This authorization replaced the approximately $190 million remaining under the share buyback program that was authorized in November 2010 as described in further detail in Item 8, Note 18, “Share Capital,” to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011. During the three months ended March 31, 2012 and the three months ended June 30, 2012, the Company purchased and canceled 4.7 million and 6.1 million ordinary shares, respectively, under the new program for $100.0 million and $125.0 million, respectively. All share buybacks were carried out by way of redemption in accordance with Irish law and the Company’s constitutional documents. All shares so redeemed were canceled upon redemption. At June 30, 2012, $525.0 million remained available for purchase under the new program.

          On January 15, 2012, the $600 million principal amount outstanding on the XLCFE Notes, which were issued by XLCFE, was repaid at maturity. For further detail, see Item 1, Note 8, “Notes Payable and Debt Financing Arrangements,” to the Unaudited Consolidated Financial Statements included herein.

          In addition, the Company maintains credit facilities that provide liquidity. Details of these facilities are described below in “Capital Resources.”

Capital Resources

          At June 30, 2012 and December 31, 2011, the Company had total shareholders’ equity of $11.2 billion and $10.8 billion, respectively. In addition to ordinary share capital, the Company depends on external sources of financing to support its underwriting activities in the form of:

a.	debt;
b.	preference shares;
c.	letter of credit facilities and other sources of collateral; and
d.	revolving credit facilities.
In particular, the Company requires, among other things:
•	sufficient capital to maintain its financial strength and credit ratings, as issued by several ratings agencies, at levels considered necessary by management to enable the Company’s key operating subsidiaries to compete;
•	sufficient capital to enable its regulated subsidiaries to meet the regulatory capital levels required in the United States, the U.K., Bermuda, Ireland, Switzerland and other key markets;
•	letters of credit and other forms of collateral that are required to be posted or deposited, as the case may be, by the Company’s operating subsidiaries that are “non-admitted” under U.S. state insurance regulations in order for the U.S. cedant to receive statutory credit for reinsurance. The Company also uses letters of credit to support its operations at Lloyd’s; and
•	revolving credit to meet short-term liquidity needs.
The following risks are associated with the Company’s requirement to renew its credit facilities:
•	the credit available from banks may be reduced resulting in the Company’s need to pledge its investment portfolio to customers. This could result in a lower investment yield;
•	the Company may be downgraded by one or more rating agencies, which could materially and negatively impact the Company’s business, financial condition, results of operations and/or liquidity; and
•	the volume of business that the Company’s subsidiaries that are not admitted in the United States are able to transact could be reduced if the Company is unable to renew its letter of credit facilities at an appropriate amount.

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          Consolidation within the banking industry may result in the aggregate amount of credit provided to the Company being reduced. The Company attempts to mitigate this risk by identifying and/or selecting additional banks that can participate in the credit facilities upon renewal. See Item 1A, “Risk Factors,” included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011.

          The following table summarizes the components of the Company’s current capital resources at June 30, 2012 and December 31, 2011:

(U.S. dollars in thousands)	June 30, 2012		December 31, 2011
Series D preference ordinary shares	$	345,000	$	345,000
Series E preference ordinary shares		999,500		999,500
Ordinary share capital		9,867,809		9,411,658
Total ordinary and non-controlling interests capital	$	11,212,309	$	10,756,158
Notes payable and debt		1,665,293		2,264,618
Total capital	$	12,877,602	$	13,020,776

          Ordinary Share Capital

          The following table reconciles the opening and closing ordinary share capital positions at June 30, 2012 and December 31, 2011:

(U.S. dollars in thousands)	June 30, 2012			December 31, 2011
Ordinary shareholders’ equity – beginning of period	$	9,411,658		$	9,597,473
Net income (loss) attributable to XL Group plc		397,784			(474,760	)
Share buybacks		(225,978	)		(667,022	)
Share issues		1,385			573,015
Ordinary share dividends		(68,755	)		(138,978	)
Change in accumulated other comprehensive income		327,696			482,269
Share based compensation and other		24,019			39,661
Ordinary shareholders’ equity – end of period	$	9,867,809		$	9,411,658

          Debt

          The following tables present the Company’s debt under outstanding securities and lenders’ commitments at June 30, 2012:

							Payments Due by Period
(U.S. dollars in thousands)	Commitment/ Debt		In Use/ Outstanding		Year of Expiry		Less than 1 Year		1 to 3 Years		3 to 5 Years		After 5 Years
4-year revolver	$	1,000,000	$	-		2015	$	-	$	-	$	-	$	-
5.25% Senior Notes		600,000		597,963		2014		-		600,000		-		-
5.75% Senior Notes		400,000		396,014		2021		-		-		-		400,000
6.375% Senior Notes		350,000		348,646		2024		-		-		-		350,000
6.25% Senior Notes		325,000		322,670		2027		-		-		-		325,000
	$	2,675,000	$	1,665,293			$	-	$	600,000	$	-	$	1,075,000
Adjustment to carrying value - impact of fair value hedges			$	8,628
Total			$	1,673,921

          “In Use/Outstanding” data represent June 30, 2012 accreted values. “Payments Due by Period” data represent ultimate redemption values.

           In addition, see Item 1, Note 13, “Notes Payable and Debt and Financing Arrangements,” to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011 for further information.

          At June 30, 2012, banks and investors provided the Company and its subsidiaries with $2.7 billion of debt capacity, of which $1.7 billion was utilized by the Company. These facilities consist of:

• a revolving credit facility of $1.0 billion.

• senior unsecured notes of approximately $1.7 billion. These notes require the Company to pay a fixed rate of interest during their terms. At June 30, 2012, there were four outstanding issues of senior unsecured notes:

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• $600 million senior notes due September 2014, with a fixed coupon of 5.25%. The security is publicly traded. The notes were issued in two tranches of $300 million aggregate principal amount each – one tranche at 99.432% and the other at 98.419% with aggregate net proceeds were $589.6 million. Related expenses of the offering amounted to $4 million.

• $400 million senior notes due October 2021, with a fixed coupon of 5.75%. The security is publicly traded. The notes were issued at 100.0% and net proceeds were $395.8 million. Related expenses of the offering amounted to $4.2 million.

• $350 million senior notes due November 2024, with a fixed coupon of 6.375%. The security is publicly traded. The notes were issued at 100.0% and net proceeds were $348 million. Related expenses of the offering amounted to $2 million.

• $325 million of senior notes due May 2027, with a fixed coupon of 6.25%. The security is publicly traded. The notes were issued at 99.805% and net proceeds were $321.9 million. Related expenses of the offering amounted to $2.5 million.

          Preferred Shares and Non-controlling Interest in Equity of Consolidated Subsidiaries

          Neither the Redeemable Series C preference ordinary shares nor the Series E preference ordinary shares were transferred from XL-Cayman to XL-Ireland in the Redomestication. Accordingly, subsequent to July 1, 2010, these instruments represent non-controlling interests in the consolidated financial statements of the Company and have been reclassified to non-controlling interest in equity of consolidated subsidiaries. See Item 8, Note 1, “General,” to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011 for further information. During the third quarter of 2011, all Redeemable Series C preference ordinary shares were purchased and canceled. At June 30, 2012, the face value of the outstanding Series E preference ordinary shares was $999.5 million.

          On October 15, 2011, XL-Cayman issued 350,000 non-cumulative Series D Preference Ordinary Shares for $350 million of cash and liquid investments that were held in a trust account that was part of the Stoneheath facility. Holders of the Stoneheath Securities received one Series D Preference Ordinary Share in exchange for each Stoneheath Security. See Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations - Contingent Capital” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011 for further information.

          On December 5, 2011, the Company repurchased 5,000 of the outstanding Series D Preference Ordinary Shares with a liquidation preference value of $5.0 million for $3.7 million, including accrued dividends. As a result of these repurchases, the Company recorded a gain of approximately $1.3 million through Non-controlling interests in the Consolidated Statement of Income in the fourth quarter of 2011. At December 31, 2011, the face value of the outstanding Series D Preference Ordinary Shares was $345.0 million.

          Letter of Credit Facilities and other sources of collateral

          At June 30, 2012, the Company had five letter of credit (“LOC”) facilities in place with total availability of $4.0 billion, of which $1.7 billion was utilized.

							Amount of Commitment Expiration by Period
(U.S. dollars in thousands)	Commitment/ Debt		In Use/ Outstanding		Year of Expiry		Less than 1 Year		1 to 3 Years		3 to 5 Years		After 5 Years
LOC Facility (1)	$	1,000,000	$	798,046	$	2014	$	-	$	798,046	$	-	$	-
LOC Facility (2) (3)		1,350,000		116,664		2015		-		-		116,664		-
LOC Facility (3)		650,000		371,690		2015		-		-		371,690		-
LOC Facility		750,000		316,674		Continuous		-		-		-		316,674
LOC Facility		250,000		125,874		Continuous		-		-		-		125,874
Five LOC facilities	$	4,000,000	$	1,728,948			$	-	$	798,046	$	488,354	$	442,548

(1)	The Company has the option to increase the size of the March 2011 Credit Agreement by an additional $500 million.
(2)	This letter of credit facility includes $1.0 billion that is also included in the “4-year revolver” listed under Notes Payable and Debt.
(3)	The Company has the option to increase the size of the facilities under the December 2011 Credit Agreements by an additional $500 million across both such facilities.

          In 2011, the Company and certain of its subsidiaries (i) entered into three new credit agreements, which provided for an aggregate amount of outstanding letters of credit and revolving credit loans up to $3 billion, subject to certain options to increase the size of the facilities, and (ii) terminated the five-year credit agreement dated June 21, 2007 (the “2007 Credit Agreement”), which had provided for an aggregate amount of outstanding letters of credit and revolving credit loans up to $4 billion.

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          On March 25, 2011, the Company and certain of its subsidiaries entered into a secured credit agreement (the “March 2011 Credit Agreement”) that currently provides for the issuance of letters of credit in an aggregate amount of up to $1 billion with the option to increase the size of the facility by an additional $500 million. Concurrent with the effectiveness of the March 2011 Credit Agreement, the commitments of the lenders under the 2007 Credit Agreement were reduced from $4 billion to $3 billion. The commitments under the March 2011 Credit Agreement will expire on, and the credit facility is available on a continuous basis until, the earlier of (i) March 25, 2014 and (ii) the date of termination in whole of the commitments upon an optional termination or reduction of the commitments by the account parties or upon an event of default.

          On December 9, 2011, the Company and certain of its subsidiaries entered into (i) a new secured credit agreement (the “December 2011 Secured Credit Agreement”) and (ii) a new unsecured credit agreement (the “December 2011 Unsecured Credit Agreement” and together with the December 2011 Secured Credit Agreement, the “December 2011 Credit Agreements”). In connection with the December 2011 Credit Agreements, the 2007 Credit Agreement was terminated. The March 2011 Credit Agreement continues in force, but was amended to conform certain of its terms to those of the December 2011 Secured Credit Agreement.

          The 2007 Credit Agreement had provided for letters of credit and for revolving credit loans of up to $750 million with the aggregate amount of outstanding letters of credit and revolving credit loans thereunder not to exceed $3 billion. At the time at which it was terminated and the December 2011 Credit Agreements became effective, there were no outstanding revolving credit loans under the 2007 Credit Agreement. A portion of the letters of credit outstanding under the 2007 Credit Agreement at the time of its termination were continued under the March 2011 Credit Agreement and the remainder were continued under the December 2011 Credit Agreements.

          The December 2011 Secured Credit Agreement provides for the issuance of letters of credit in an aggregate amount of up to $650 million. The December 2011 Unsecured Credit Agreement is a $1.35 billion facility that provides for the issuance of letters of credit and revolving credit loans in an aggregate amount up to $1 billion. The Company has the option to increase the maximum amount of letters of credit available by an additional $500 million across the facilities under the December 2011 Credit Agreements.

          The commitments under each December 2011 Credit Agreement expire on, and such credit facilities are available until, the earlier of (i) December 9, 2015 and (ii) the date of termination in whole of the commitments upon an optional termination or reduction of the commitments by the account parties or upon an event of default.

          The availability of letters of credit under the December 2011 Secured Credit Agreement and the March 2011 Credit Agreements is subject to a borrowing base requirement, determined on the basis of specified percentages of the face value of eligible categories of assets varying by type of collateral. In the event that such credit support is insufficient, the Company could be required to provide alternative security to cedants. This could take the form of insurance trusts supported by the Company’s investment portfolio or funds withheld (amounts retained by ceding companies to collateralize loss or premium reserves) using the Company’s cash resources or combinations thereof. The face amount of letters of credit required is driven by, among other things, loss development of existing reserves, the payment pattern of such reserves, the expansion of business written by the Company and the loss experience of such business. In addition to letters of credit, the Company has established insurance trusts in the United States that provide cedants with statutory credit for reinsurance under state insurance regulation in the United States.

          The Company reviews current and projected collateral requirements on a regular basis, as well as new sources of collateral. Management’s objective is to maintain an excess amount of collateral sources over expected uses. The Company also reviews its liquidity needs on a regular basis.

          In October 2011, the $75,000 letter of credit facility that was supporting a subsidiary of the Company terminated.

          Other

          For information regarding cross-default and certain other provisions in the Company’s debt and convertible securities documents, see Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Cross-Default and Other Provisions in Debt Instruments,” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011 and the Company’s Current Report on Form 8-K filed on March 28, 2011.

          See Part II, Item 2, “Unregistered Sales of Equity Securities and Use of Proceeds,” below.

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CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

          The Private Securities Litigation Reform Act of 1995 (“PSLRA”) provides a “safe harbor” for forward-looking statements. Any prospectus, prospectus supplement, the Company’s Annual Report to ordinary shareholders, any proxy statement, any Form 10-K, Form 10-Q or Form 8-K of the Company or any other written or oral statements made by or on behalf of the Company may include forward-looking statements that reflect the Company’s current views with respect to future events and financial performance. Such statements include forward-looking statements both with respect to the Company in general, and to the insurance and reinsurance sectors in particular (both as to underwriting and investment matters). Statements that include the words “expect,” “intend,” “plan,” “believe,” “project,” “anticipate,” “will,” “may” and similar statements of a future or forward-looking nature identify forward-looking statements for purposes of the PSLRA or otherwise.

          All forward-looking statements address matters that involve risks and uncertainties. Accordingly, there are or will be important factors that could cause actual results to differ materially from those indicated in such statements. The Company believes that these factors include, but are not limited to, the following: (i) changes in the size of the Company’s claims relating to natural or man-made catastrophe losses due to the preliminary nature of some reports and estimates of loss and damage to date; (ii) trends in rates for property and casualty insurance and reinsurance; (iii) the timely and full recoverability of reinsurance placed by the Company with third parties, or other amounts due to the Company; (iv) changes in ratings, rating agency policies or practices; (v) changes in the projected amount of ceded reinsurance recoverables and the ratings and creditworthiness of reinsurers; (vi) the timing of claims payments being faster or the receipt of reinsurance recoverables being slower than anticipated by the Company; (vii) the Company’s ability to successfully implement its business strategy especially during a “soft” market cycle; (viii) increased competition on the basis of pricing, capacity, coverage terms or other factors, which could harm the Company’s ability to maintain or increase its business volumes or profitability; (ix) greater frequency or severity of claims and loss activity than the Company’s underwriting, reserving or investment practices anticipate based on historical experience or industry data; (x) changes in general economic conditions, including the effects of inflation on the Company’s business, including on pricing and reserving, and changes in interest rates, credit spreads, foreign currency exchange rates and future volatility in the world’s credit, financial and capital markets that adversely affect the performance and valuation of the Company’s investments or access to such markets; (xi) developments, including uncertainties related to the ability of Euro-zone countries to service existing debt obligations and the strength of the Euro as a currency and to the financial condition of counterparties, reinsurers and other companies that are at risk of bankruptcy; (xii) the potential impact on the Company from government-mandated insurance coverage for acts of terrorism; (xiii) the potential for changes to methodologies, estimations and assumptions that underlie the valuation of the Company’s financial instruments that could result in changes to investment valuations; (xiv) changes to the Company’s assessment as to whether it is more likely than not that the Company will be required to sell, or has the intent to sell, available for sale debt securities before their anticipated recovery; (xv) the availability of borrowings and letters of credit under the Company’s credit facilities; (xvi) the ability of the Company’s subsidiaries to pay dividends to XL Group plc and XLIT Ltd.; (xvii) the potential effect of regulatory developments in the jurisdictions in which the Company operates, including those which could impact the financial markets or increase the Company’s business costs and required capital levels; (xviii) changes in regulations or laws applicable to XL Group plc or its subsidiaries, brokers or customers; (xix) acceptance of the Company’s products and services, including new products and services; (xx) changes in the availability, cost or quality of reinsurance; (xxi) changes in the distribution or placement of risks due to increased consolidation of insurance and reinsurance brokers; (xxii) loss of key personnel; (xxiii) changes in accounting policies or practices or the application thereof; (xxiv) legislative or regulatory developments including, but not limited to, changes in regulatory capital balances that must be maintained by the Company’s operating subsidiaries and governmental actions for the purpose of stabilizing the financial markets; (xxv) the effects of mergers, acquisitions and divestitures; (xvi) developments related to bankruptcies of companies insofar as they affect property and casualty insurance and reinsurance coverages or claims that the Company may have as a counterparty; (xxvii) changes in applicable tax laws, tax treaties or tax regulations or the interpretation or enforcement thereof; (xxviii) the effects of business disruption or economic contraction due to war, terrorism or other hostilities; (xxix) the Company’s ability to realize the expected benefits from the redomestication; and (xxx) the other factors set forth in Item 1A, “Risk Factors,” and the Company’s other documents on file with the SEC. The foregoing review of important factors should not be construed as exhaustive and should be read in conjunction with the other cautionary statements that are included herein or elsewhere. The Company undertakes no obligation to update publicly or revise any forward-looking statement, whether as a result of new information, future developments or otherwise, except as required by the federal securities laws.

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ANNUALIZED RETURN ON ORDINARY SHAREHOLDERS’ EQUITY CALCULATION

          The following is a reconciliation of the Company’s annualized return on ordinary shareholders’ equity for the three and six months ended June 30, 2012 and 2011 to annualized net income (loss) attributable to ordinary shareholders:

	Three Months Ended June 30,						Six Months Ended June 30,
(U.S. dollars in thousands, except percentages)	2012			2011			2012			2011
Opening shareholders’ equity	$	11,054,489		$	10,255,716		$	10,756,130		$	10,599,769
Less: Non-controlling interest in equity of consolidated subsidiaries		(1,344,467	)		(1,001,798	)		(1,344,472	)		(1,002,296	)
Opening ordinary shareholders’ equity	$	9,710,022		$	9,253,918		$	9,411,658		$	9,597,473
Closing shareholders’ equity		11,213,802			10,614,451			11,213,802			10,614,451
Less: Non-controlling interest in equity of consolidated subsidiaries		(1,345,993	)		(1,001,781	)		(1,345,993	)		(1,001,781	)
Closing ordinary shareholders’ equity	$	9,867,809		$	9,612,670		$	9,867,809		$	9,612,670
Average ordinary shareholders’ equity		9,788,915			9,433,294			9,639,733			9,605,071
Net income (loss) attributable to ordinary shareholders		221,156			225,663			397,784			(1,621	)
Annualized net income (loss) attributable to ordinary shareholders		884,624			902,652			795,568			(3,242	)
Annualized return on ordinary shareholders’ equity - Net income (loss) attributable to ordinary shareholders		9.0	%		9.6	%		8.3	%		0.0	%

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ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

General

          The following discussion should be read in conjunction with “Quantitative and Qualitative Disclosures about Market Risk,” presented under Item 7A, “Quantitative and Qualitative Disclosures About Market Risk,” included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011.

          Market risk represents the potential for loss due to adverse changes in the fair value of financial and other instruments. The Company is principally exposed to the following market risks: interest rate risk, foreign currency exchange rate risk, equity price risk, credit risk, and other related market risks.

          The majority of the Company’s market risk arises from its investment portfolio which consists of fixed income securities, alternative investments, public equities, private investments, derivatives, other investments, and cash, denominated in both U.S. and foreign currencies, which are sensitive to changes in interest rates, credit spreads, equity prices, foreign currency exchange rates and other related market risks. The Company’s fixed income and equity securities are generally classified as available for sale, and, as such, changes in interest rates, credit spreads on corporate and structured credit, equity prices, foreign currency exchange rates or other related market instruments will have an immediate effect on comprehensive income and shareholders’ equity but will not ordinarily have an immediate effect on net income. Nevertheless, changes in interest rates, credit spreads, equity prices and other related market instruments affect consolidated net income when, and if, a security is sold or impaired.

          The Company may enter into derivatives and other financial instruments primarily for risk management purposes. For example, the Company may use derivatives to hedge foreign exchange and interest rate risk related to its consolidated net exposures. From time to time, the Company may also use instruments such as futures, options, interest rate swaps, credit default swaps and foreign currency forward contracts to manage the risk of interest rate changes, credit deterioration, foreign currency exposures, and other market related exposures as well as to obtain exposure to a particular financial market. Historically, the Company entered into credit derivatives outside of the investment portfolio in conjunction with the legacy financial guarantee and financial products operations. The Company attempts to manage the risks associated with derivative use with guidelines established by senior management. Derivative instruments are carried at fair value with the resulting changes in fair value recognized in income in the period in which they occur. For further information, see Item 1, Note 6, “Derivative Instruments,” to the Unaudited Consolidated Financial Statements included herein.

          This risk management discussion and the estimated amounts generated from the sensitivity and VaR analyses presented in this document are forward-looking statements of market risk assuming certain adverse market conditions occur. Actual results in the future may differ materially from these estimated results due to, among other things, actual developments in the global financial markets and changes in the composition of the Company’s investment portfolio. The results of analysis used by the Company to assess and mitigate risk should not be considered projections of future events of losses. See Item 2, “Cautionary Note Regarding Forward-Looking Statements.”

Interest Rate Risk

          Interest rate risk is the price sensitivity of a fixed income security to changes in interest rates. The Company’s fixed income portfolio is exposed to interest rate risk. The Company’s liabilities are accrued at a static rate from an accounting standpoint. However, management considers the liabilities to have an economic exposure to interest rate risk and manages the net economic exposure to interest rate risk considering both assets and liabilities. Interest rate risk is managed within the context of its Strategic Asset Allocation (“SAA”) process by specifying SAA benchmarks relative to the estimated duration of its liabilities and managing the fixed income portfolio relative to the Benchmarks such that the overall economic effect of interest rate risk is within management’s risk tolerance. Nevertheless, the Company remains exposed to interest rate risk with respect to the Company’s overall net asset position and more generally from an accounting standpoint since the assets are marked to market, while liabilities are accrued at a static rate.

          In addition, while the Company’s debt is not carried at fair value and not adjusted for market changes, changes in market interest rates could have an impact on debt values at the time of any refinancing.

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Foreign Currency Exchange Rate Risk

          Many of the Company’s non-U.S. subsidiaries maintain both assets and liabilities in local currencies, therefore, foreign exchange risk is generally limited to net assets denominated in foreign currencies.

          Foreign currency exchange rate gains and losses in the Company’s Statement of Income arise for accounting purposes when net assets or liabilities are denominated in foreign currencies that differ from the functional currency of those subsidiaries. While unrealized foreign exchange gains and losses on underwriting balances are reported in earnings, the offsetting unrealized gains and losses on invested assets are recorded as a separate component of shareholders’ equity, to the extent that the asset currency does not match that entity’s functional currency. This results in an accounting mismatch that will result in foreign exchange gains or losses in the consolidated statements of income depending on the movement in certain currencies. The Company has formed several branches with Euro and U.K. sterling functional currencies and continues to focus on attempting to limit exposure to foreign exchange risk.

          Foreign currency exchange rate risk in general is reviewed as part of the Company’s risk management framework. Within its asset liability framework for the investment portfolio, the Company pursues a general policy of holding the assets and liabilities in the same currency and, as such, the Company is not generally exposed to the risks associated with foreign exchange movements within its investment portfolio as currency impacts on the assets are generally matched by corresponding impacts on the related liabilities. However, locally-required capital levels are invested in local currencies in order to satisfy regulatory requirements and to support local insurance operations and are not matched by related liabilities. Foreign exchange contracts within the investment portfolio may be utilized to manage individual portfolio foreign exchange exposures, subject to investment management service providers’ guidelines established by management. Where these contracts are not designated as specific hedges for financial reporting purposes, realized and unrealized gains and losses are recorded in income in the period in which they occur. These contracts generally have maturities of three months or less. The Company may also attempt to manage the foreign exchange volatility arising on certain transactions denominated in foreign currencies. These include, but are not limited to, premium receivable, reinsurance contracts, claims payable and investments in subsidiaries.

          The principal currencies creating foreign exchange risk for the Company are the U.K. sterling, the Euro, the Swiss franc and the Canadian dollar. The following table provides more information on the Company’s net exposures to its principal foreign currencies at June 30, 2012 and December 31, 2011:

(Foreign Currency in Millions)	June 30, 2012		December 31, 2011
Euro		21.6		52.0
U.K. Sterling		170.6		35.1
Swiss Franc		172.5		153.7
Canadian Dollar		189.1		222.5

Credit Risk

          Credit risk relates to the uncertainty of an obligor’s continued ability to make timely payments in accordance with the contractual terms of the instrument or contract. The Company is exposed to direct credit risk within its investment portfolio as well as through general counterparties, including customers and reinsurers. The Company manages credit risk within its investment portfolio through its SAA framework and its established investment credit policies, which address quality of obligors and counterparties, industry limits, and diversification requirements. The Company’s exposure to market credit spreads primarily relates to market price and cash flow variability associated with changes in credit spreads.

          Certain of the Company’s underwriting activities expose it to indirect credit risk in that profitability of certain strategies can correlate with credit events at the issuer level, industry level or country level. The Company manages these risks through established underwriting policies which operate in accordance with established limit and escalation frameworks.

          The Company has an established credit risk governance process delegated to the Credit Sub-Committee of the Enterprise Risk Management Committee. The governance process is designed to ensure that transactions and activities, individually and in the aggregate, are carried out within management’s risk tolerances.

          Credit Risk – Investment Portfolio

          Credit risk in the investment portfolio is the exposure to adverse changes in the creditworthiness of individual investment holdings, issuers, groups of issuers, industries and countries. A widening of credit spreads will increase the net unrealized loss position, will increase losses associated with credit based derivatives where the Company assumes credit exposure, and, if issuer credit spreads increase significantly for an extended period of time and in a period of increasing defaults, would also likely result in higher other-than-temporary impairments. All else held equal, credit spread tightening will reduce net investment income associated with new purchases of fixed maturities. In addition, market volatility can make it difficult to value certain of the Company’s securities if

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trading becomes less frequent. As such, valuations may include assumptions or estimates that may have significant period to period changes that could have a material adverse effect on the Company’s consolidated results of operations or financial condition. The credit spread duration in the Company’s fixed income portfolio, excluding the impact of the HTM election, was 3.5 years at June 30, 2012.

          The Company manages credit risk in the investment portfolio, including fixed income, alternative and short-term investment, through the credit research performed primarily by the investment management service providers. The management of credit risk in the investment portfolio is also fully integrated in the Company’s credit risk management governance framework and the management of credit exposures and concentrations within the investment portfolio is carried out in accordance with the Company’s risk policies, philosophies, appetites, limits and risk concentrations delegated to the investment portfolio. In the investment portfolio, the Company reviews on a regular basis its asset concentration, credit quality and adherence to the Company’s credit limit guidelines. Any issuer over its credit limits, experiencing financial difficulties, material credit quality deterioration or potentially subject to forthcoming credit quality deterioration is placed on a watch list for closer monitoring. Where appropriate, exposures are reduced or prevented from increasing.

          The table below shows the Company’s aggregate fixed income portfolio by credit rating in percentage terms of the Company’s aggregate fixed income exposure (including fixed maturities, short-term investments, cash equivalents and net payable for investments purchased) at June 30, 2012.

	Percentage of Aggregated Fixed Income Portfolio (1)(2)
AAA		51.1	%
AA		15.9	%
A		21.4	%
BBB		8.9	%
BB or Below		2.6	%
NR		0.1	%
Total		100.0	%

(1)	Included in the above are $186.1 million or 0.6% of the portfolio that represents medium term notes rated at the average credit rating of the underlying asset pools backing the notes.
(2)	The credit ratings above were principally determined based on the weighted average rating of the individual securities from Standard & Poor’s, Moody’s Investors Service and Fitch Ratings (where available). U.S. Agency debt, whether with implicit or explicit government support, reflect the credit quality rating of the U.S. government for the purpose of these calculations.

          At June 30, 2012, the average credit quality of the Company’s aggregate fixed income investment portfolio was “Aa2/AA”. The calculation of average credit quality excludes operating cash. The Company’s $9.1 billion portfolio of government and government related, agency, sovereign and cash holdings were rated “AAA” at June 30, 2012. The Company’s $11.3 billion portfolio of corporates is rated “A.” The Company’s $9.1 billion structured credit portfolio is “AA+” rated.

          The Company is closely monitoring its corporate financial bond holdings given the events of the past four years. The table below summarizes the Company’s significant exposures (defined as bonds issued by financial institutions with an amortized cost in excess of $50.0 million) to corporate bonds of financial issuers including Covered Bonds held within its AFS and HTM investment portfolio at June 30, 2012, representing both amortized cost and net unrealized gains (losses):

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	June 30, 2012
(U.S. dollars in millions) Issuer (by Global Ultimate Parent) (1)	Weighted Average Credit Quality (2)		Amortized Cost		Unrealized Gain/ (Loss)
Lloyds Banking Group plc	$	AA	$	144.8	$	3.2
Rabobank Nederland NV		AA		135.5		1.0
National Australia Bank Limited		AA-		135.3		(1.6	)
The Goldman Sachs Group, Inc.		BBB+		128.7		(0.2	)
Bank of America Corporation		BBB+		118.2		(2.3	)
JPMorgan Chase & Co.		A-		114.1		(4.2	)
Citigroup Inc.		BBB+		105.9		(0.2	)
The Bank of Nova Scotia		AA		101.5		3.3
UBS AG		A+		97.1		(0.2	)
Morgan Stanley		A-		96.0		(0.4	)
Wells Fargo & Company		A+		90.0		4.3
HSBC Holdings plc		A		88.7		(6.1	)
Westpac Banking Corporation		AA-		85.3		3.5
Credit Suisse Group AG		A+		83.8		0.8
Canadian Imperial Bank of Commerce		AA		79.6		2.9
Nordea Bank AB		A+		75.3		0.6
Commonwealth Bank of Australia		AA-		73.0		1.6
Standard Chartered plc		A		71.6		0.2
The Bank of New York Mellon Corporation		AA-		67.6		2.4
Royal Bank of Canada		AA-		67.6		1.7
Bank of Montreal		AA		61.8		2.6
Australia and New Zealand Banking Group Limited		A+		60.9		0.6
Nationwide Building Society		AA-		57.0		(7.2	)
U.S. Bancorp		A+		56.2		1.9
BNP Paribas		A+		53.8		0.1
Government of Netherlands (ABN AMRO)		AAA+		51.5		5.2
Barclays plc		BBB-		50.5		(11.4	)

(1)	Includes Covered Bonds.
(2)	The credit rating for each asset reflected above was principally determined based on the weighted average rating of the individual securities from Standard & Poor’s, Moody’s Investors Service and Fitch Ratings. U.S. Agency debt, whether with implicit or explicit government support, reflect the credit quality rating of the U.S. government for the purpose of these calculations.

          Within the Company’s corporate financial bond holdings, the Company is further monitoring its exposures to hybrid securities, representing Tier One and Upper Tier Two securities of various financial institutions. The following table summarizes the top ten exposures to hybrid securities, listed by amortized cost representing both amortized cost and unrealized (losses):

	June 30, 2012
(U.S. dollars in millions) Issuer (by Global Ultimate Parent)	Tier One Amortized Cost		Upper Tier Two Amortized Cost		Total Amortized Cost		Net Unrealized (Loss)
Barclays, Plc	$	4.7	$	43.0	$	47.7	$	(11.5	)
JPMorgan Chas & Co.		30.0		-		30.0		(8.5	)
Zurich Financial Services AG		-		25.8		25.8		(2.9	)
Nationwide Building Society		24.8		-		24.8		(7.2	)
HSBC Holdings PLC		22.2		-		22.2		(3.5	)
Standard Life Plc		-		21.4		21.4		(4.2	)
RSA Insurance Group Plc		-		20.6		20.6		(2.5	)
Mitsubishi UFJ Financial Group, Inc.		20.4		-		20.4		0.4
The British United Provident Association Limited		-		20.2		20.2		(4.1	)
National Australia Bank Limited		20.1		-		20.1		(3.9	)
Total	$	122.2	$	131.0	$	253.2	$	(47.9	)

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          At June 30, 2012, the top 10 corporate holdings, which exclude government guaranteed and government sponsored enterprises, represented approximately 3.6% of the aggregate fixed income portfolio and approximately 10.6% of all corporate holdings. The top 10 corporate bond holdings listed below represent the direct exposure to the corporations listed below, including their subsidiaries, and excludes any securitized, credit enhanced and collateralized asset or mortgage-backed securities, cash and cash equivalents, pooled notes and any over-the-counter (“OTC”) derivative counterparty exposures, if applicable, but does include Covered Bonds.

Top 10 Corporate Holdings (1)	Percentage of Aggregate Fixed Income Portfolio
Lloyds Banking Group PLC	0.5	%
Rabobank Nederland NV	0.4	%
National Australia Bank Limited	0.4	%
The Goldman Sachs Group, Inc.	0.4	%
Bank of America Corporation	0.4	%
JPMorgan Chase & Co.	0.3	%
Citigroup Inc.	0.3	%
The Bank of Nova Scotia	0.3	%
UBS AG	0.3	%
Morgan Stanley	0.3	%

(1) Corporate issuers include Covered Bonds.

          At June 30, 2012, the top 5 corporate sector exposures listed below represented 26.8% of the aggregate fixed income investment portfolio and 79.5% of all corporate holdings.

(U.S. dollars in millions) Top 5 Sector Exposures	Fair Value		Percentage of Aggregate Fixed Income Portfolio
Financials (1)	$	3,068.4		9.3	%
Consumer, Non-Cyclical		2,263.5		6.9	%
Utilities		1,511.4		4.6	%
Communications		1,000.7		3.0	%
Industrial		985.9		3.0	%
Total	$	8,829.9		26.8	%

(1) Government-guaranteed securities and Covered Bonds have been excluded from the above figures.

          Within the Company’s fixed income portfolios, the Company is further monitoring its exposures to holdings representing risk in certain Euro-zone countries (Greece, Italy, Ireland, Portugal and Spain). In particular, the Company has government holdings of $13.5 million, corporate holdings of $162.2 million (financials $0.3 million, non-financials $161.9 million) and structured credit holdings totaling $11.1 million in GIIPS. The non-financial corporate holdings primarily consist of securities issued by multinational companies with low reliance on local economics and systemically important industries such as utilities and telecoms. For further detail on the Company’s exposure to the Euro-zone sovereign debt crisis please refer to Item 2, “Management’s Discussion and Analysis of Financial Condition and Results of Operations – European Sovereign Debt Crisis.”

          The Company also has exposure to credit risk associated with its mortgage-backed and asset-backed securities. The table below shows the breakdown of the $9.1 billion structured credit portfolio, of which 79.9% is AAA rated:

(U.S. dollars in millions)	Fair Value		Percentage of Structured Portfolio
Agency RMBS	$	5,202.3		57.4	%
Other ABS (1)		1,625.1		17.9	%
CMBS		917.3		10.1	%
Non-Agency RMBS		665.6		7.3	%
Core CDO (non-ABS CDOs and CLOs)		650.0		7.3	%
Total	$	9,060.3		100.0	%

(1) Includes Covered Bonds.

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          Credit Risk – Other

          Credit derivatives are purchased within the Company’s investment portfolio, have been sold through a limited number of contracts written as part of the Company’s previous XL financial lines business, and were previously entered into through the Company’s prior reinsurance agreements with Syncora. From time to time, the Company may purchase credit default swaps to hedge an existing position or concentration of holdings. The credit derivatives are recorded at fair value. For further details with respect to the Company’s exposure to Credit derivatives, see Item 1, Note 6, “Derivative Instruments,” to the Unaudited Consolidated Financial Statements included herein.

          The Company has exposure to many different industries and counterparties, and routinely executes transactions with counterparties in the financial services industry, including brokers and dealers, commercial banks, investment banks, alternatives and other investment funds and other institutions. Many of these transactions expose the Company to credit risk in the event of default of the Company’s counterparty. In addition, with respect to secured transactions, the Company’s credit risk may be exacerbated when the collateral held by the Company cannot be sold or is liquidated at prices not sufficient to recover the full amount of the loan or derivative exposure that is due. The Company also has exposure to financial institutions in the form of unsecured debt instruments, derivative transactions, revolving credit facility and letter of credit commitments and equity investments. There can be no assurance that any such losses or impairments to the carrying value of these assets would not materially and adversely affect the Company’s business and results of operations.

          With regard to unpaid losses and loss expenses recoverable and reinsurance balances receivable, the Company has credit risk should any of its reinsurers be unable or unwilling to settle amounts due to the Company; however, these exposures are not marked to market. For further information relating to reinsurer credit risk, see Item 2, “Management’s Discussion and Analysis of Financial Condition and Results of Operations –Unpaid Losses and Loss Expenses Recoverable and Reinsurance Balances Receivable.”

          The Company is exposed to credit risk in the event of non-performance by the other parties to its derivative instruments in general; however, the Company does not anticipate non-performance. The difference between the notional principal amounts and the associated market value is the Company’s maximum credit exposure.

Equity Price Risk

          Equity price risk is the potential loss arising from changes in the market value of equities. The Company’s equity investment portfolio is exposed to equity price risk. At June 30, 2012, the Company’s equity portfolio was approximately $433.3 million as compared to $376.6 million at December 31, 2011. This excludes fixed income fund investments of $95.8 million and $91.6 million at June 30, 2012 and December 31, 2011, respectively, that generally do not have the risk characteristics of equity investments but are treated as equity investments under GAAP. At June 30, 2012 and December 31, 2011, the Company’s direct allocation to equity securities was 1.2% and 1.1%, respectively, of the total investment portfolio (including cash and cash equivalents, accrued investment income and net payable for investments purchased.) The Company also estimates the equity risk embedded in certain alternative and private investments. Such estimates are derived from market exposures provided to the Company by certain individual fund investments and/or internal statistical analyses.

Other Market Risks

          The Company’s private investment portfolio is invested in limited partnerships and other entities that are not publicly traded. In addition to normal market risks, these positions may also be exposed to liquidity risk, risks related to distressed investments, and risks specific to startup or small companies. At June 30, 2012, the Company’s exposure to private investments, excluding unfunded commitments, was $305.7 million, representing 0.9% of the fixed income portfolio (including cash and cash equivalents, accrued investment income and net payable for investments purchased) compared to $288.4 million at December 31, 2011.

          The Company’s alternative investment portfolio, which is exposed to equity and credit risk as well as certain other market risks, had a total exposure of $1,227.4 million representing approximately 3.4% of the investment portfolio (including cash and cash equivalents, accrued investment income and net payable for investments purchased) at June 30, 2012, as compared to December 31, 2011, when the Company had a total exposure of $1,027.2 million representing approximately 3.1% of the investment portfolio.

          At June 30, 2012, bond and stock index futures outstanding had a net long position of $25.7 million as compared to a net long position of $12.6 million at December 31, 2011. The Company may reduce its exposure to these futures through offsetting transactions, including options and forwards.

          As noted above, the Company also invests in certain derivative positions that can be impacted by market value movements. For further details on derivative instruments see Item 1, Note 6, “Derivative Instruments,” to the Unaudited Consolidated Financial Statements included herein.

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Sensitivity and Value-at-Risk Analysis

          The table below summarizes the Company’s assessment of the estimated impact on the value of the Company’s investment portfolio at June 30, 2012 associated with an immediate and hypothetical: +100bps increase in interest rates, a -10% decline in equity markets, a +100bps widening in spreads and a +10% widening in spreads. The table also reports the 95%, 1-year VaRs for the Company’s investment portfolios at June 30, 2012, excluding foreign exchange.

          The interest rate, spread risk, and VaR referenced in the table below include the impact of market movements on the Company’s held to maturity fixed maturities from the Company’s Life investment portfolios. While the market value of these holdings is sensitive to prevailing interest rates and credit spreads, the Company’s book value is not impacted as these holdings are carried at amortized cost. At June 30, 2012, if the Company were to exclude these impacts in order to present the impact of these risks to the Company’s book value, the interest rate risk would be reduced by approximately $307.1 million, absolute spread risk would be reduced by approximately $208.9 million, relative spread risk would be reduced by approximately $30.1 million, and VaR would be reduced by approximately $414.5 million.

          The table below excludes the impact of foreign exchange rate risk on the Company’s investment portfolio. The Company’s investment strategy incorporates asset-liability management, and, accordingly, any foreign exchange movements impact the assets and liabilities equally. See “Foreign Currency Exchange Rate Risk,” for further details. The Company considers that the investment portfolio VaR estimated results as well as the P&C and Life investment portfolios VaR estimated results excluding foreign exchange rate risk are the more relevant and appropriate metrics to consider when assessing the actual risk of the investment portfolio.

          The estimated results below also do not include any risk contributions from our various operating affiliates (strategic, investment manager or financial operating affiliates) or certain other investments that are carried at amortized cost.

(U.S. dollars in millions)	Interest Rate Risk (1)			Equity Risk (2)			Absolute Spread Risk (3)			Relative Spread Risk (4)			VaR (5), (6)
Total Investment Portfolio (7)	$	(1,302.9	)	$	(98.1	)	$	(1,265.7	)	$	(212.8	)	$	1,006.0
A. P&C Investment Portfolio	$	(758.1	)	$	(98.1	)	$	(797.6	)	$	(107.9	)	$	472.5
(I) P&C Fixed Income Portfolio		(758.1	)		-			(797.6	)		(107.9	)		482.8
(a) Cash & Short Term Investments		(8.4	)		-			(2.5	)		(0.1	)		16.2
(b) Total Government Related		(283.9	)		-			(196.0	)		(10.0	)		159.7
(c) Total Corporate Credit		(269.4	)		-			(301.2	)		(43.7	)		207.2
(d) Total Structured Credit		(196.5	)		-			(297.9	)		(54.2	)		164.4
(II) P&C Non-Fixed Income Portfolio		-			(98.1	)		-			-			179.8
(e) Equity Portfolio		-			(44.8	)		-			-			99.2
(f) Alternative Portfolio		-			(22.3	)		-			-			79.7
(g) Private Investments		-			(31.1	)		-			-			68.9
(h) Other		-			-			-			-			3.3
B. Life Investment Portfolio	$	(537.1	)	$	-		$	(431.0	)	$	(100.9	)	$	646.3
(III) Life Fixed Income Portfolio		(537.1	)		-			(431.0	)		(100.9	)		646.3
(i) Cash & Short Term Investments		(0.1	)		-			-			-			0.2
(j) Total Government Related		(223.6	)		-			(85.1	)		(6.7	)		307.6
(k) Total Corporate Credit		(255.1	)		-			(278.7	)		(74.1	)		288.4
(l) Total Structured Credit		(58.3	)		-			(67.1	)		(20.0	)		72.5
(IV) Life Non-Fixed Income Portfolio		-			-			-			-			-

(1)	The estimated impact on the fair value of the Company’s fixed income portfolio of an immediate hypothetical +100 bps adverse parallel shift in global bond curves.
(2)	The estimated impact on the fair value of the Company’s investment portfolio of an immediate hypothetical -10% change in the value of equity exposures in the Company’s equity portfolio, certain equity-sensitive alternative investments and private equity investments. This includes the Company’s estimate of equity risk embedded in the alternatives and private investment portfolio with such estimates utilizing market exposures provided to the Company by certain individual fund investments, internal statistical analyses, and/or various assumptions regarding illiquidity and concentrations.
(3)	The estimated impact on the fair value of the Company’s fixed income portfolio of an immediate hypothetical +100 basis point increase in all global government related, corporate and structured credit spreads to which the Company’s fixed income portfolio is exposed. This excludes exposure to credit spreads in the Company’s alternative investments, private investments and counterparty exposure.
(4)	The estimated impact on the fair value of the Company’s fixed income portfolio of an immediate hypothetical +10% increase in all global government related, corporate and structured credit spreads to which the Company’s fixed income portfolio is exposed. This excludes exposure to credit spreads in the Company’s alternative investments, private investments and counterparty exposure.
(5)	The VaR results are based on a 95% confidence interval, with a one-year holding period, excluding foreign exchange rate risk. The Company’s investment portfolio VaR at June 30, 2012 is not necessarily indicative of future VaR levels as these are based on statistical estimates of possible price changes and, therefore, exclude other sources of investment return such as coupon and dividend income.

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(6)

The VaR results are the standalone VaRs, based on the prescribed methodology, for each component of the Company’s Total Investment Portfolio. The standalone VaRs of the individual components are non-additive, with the difference between the summation of the individual component VaRs and their respective aggregations being due to diversification benefits across the individual components. In the case of the VaR results for the Company’s Total Investment Portfolio, the results also include the impact associated with the Company’s Business and Other Investments.

(7)

The Company’s Total Investment Portfolio comprises the Company’s P&C Investment Portfolio and Life Investment Portfolio as well as the Company’s Business and Other Investments that do not form part of the Company’s P&C Investment Portfolio or Life Investment Portfolio. The individual results reported in the above table for the Company’s Total Investment Portfolio therefore represent the aggregate impact on the Company’s P&C Investment Portfolio, Life Investment Portfolio and the majority of the Company’s Other Investments.

Stress Testing

          VaR does not provide the means to estimate the magnitude of the loss in the 5% of occurrences when the Company expects the VaR level to be exceeded. To complement the VaR analysis based on normal market environments, the Company considers the impact on the investment portfolio in several different stress scenarios to analyze the effect of unusual market conditions. The Company establishes certain stress scenarios which are applied to the actual investment portfolio. As these stress scenarios and estimated gains and losses are based on scenarios established by the Company, they will not necessarily reflect future stress events or gains and losses from such events. The results of the stress scenarios are reviewed on a regular basis to ensure they are appropriate, based on current shareholders’ equity, market conditions and the Company’s total risk tolerance. It is important to note that when assessing the risk of the Company’s investment portfolio, the Company does not take into account either the value or risk associated with the liabilities arising from the Company’s operations.

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ITEM 4. CONTROLS AND PROCEDURES

          Conclusion Regarding the Effectiveness of Disclosure Controls and Procedures

          The Company carried out an evaluation, under the supervision and with the participation of the Company’s management, including the Chief Executive Officer and Chief Financial Officer, of the effectiveness of disclosure controls and procedures pursuant to Rules 13a-15 or 15d-15 promulgated under the Securities Exchange Act of 1934, as amended, as of the end of the period covered by this report. Based on that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that the disclosure controls and procedures were effective to provide reasonable assurance that all material information relating to the Company required to be included in this report has been made known to them in a timely fashion.

          Changes in Internal Control Over Financial Reporting

          There have been no changes in internal control over financial reporting identified in connection with the Company’s evaluation required pursuant to Rules 13a-15 or 15d-15 promulgated under the Securities Exchange Act of 1934, as amended, that occurred during the most recent fiscal quarter that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

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PART II – OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

          The Company is subject to legal proceedings and claims, as described in its Annual Report on Form 10-K for the year ended December 31, 2011. Material developments to such proceedings during the three months ended June 30, 2012 are described below.

          In August 2005, plaintiffs in a proposed class action (the “Class Action”) that was consolidated into a multidistrict litigation in the United States District Court for the District of New Jersey, captioned In re Brokerage Antitrust Litigation, MDL No. 1663, Civil Action No. 04-5184 (the “MDL”), filed a consolidated amended complaint (the “Amended Complaint”), which named as new defendants approximately 30 entities, including Greenwich Insurance Company, Indian Harbor Insurance Company and XL-Cayman (the “XL Defendants”). In the MDL, the Class Action plaintiffs asserted various claims purportedly on behalf of a class of commercial insureds against approximately 113 insurance companies and insurance brokers through which the named plaintiffs allegedly purchased insurance. The Amended Complaint alleged that the defendant insurance companies and insurance brokers conspired to manipulate bidding practices for insurance policies in certain insurance lines and failed to disclose certain commission arrangements and asserted statutory claims under the Sherman Act, various state antitrust laws and the Racketeer Influenced and Corrupt Organizations Act (“RICO”), as well as common law claims alleging breach of fiduciary duty, aiding and abetting a breach of fiduciary duty and unjust enrichment. By Opinion and Order dated August 31, 2007, the District Court dismissed the Sherman Act claims with prejudice and, by Opinion and Order dated September 28, 2007, the District Court dismissed the RICO claims with prejudice. The plaintiffs then appealed both Orders to the U.S. Court of Appeals for the Third Circuit. On August 16, 2010, the Third Circuit affirmed in large part the District Court’s dismissal. The Third Circuit reversed the dismissal of certain Sherman Act and RICO claims alleged against several defendants including the XL Defendants but remanded those claims to the District Court for further consideration of their adequacy. In light of its reversal and remand of certain of the federal claims, the Third Circuit also reversed the District Court’s dismissal (based on the District Court’s declining to exercise supplemental jurisdiction) of the state-law claims against all defendants. On October 1, 2010, the remaining defendants, including the XL Defendants, filed motions to dismiss the remanded federal claims and the state-law claims. The motions were fully briefed in November 2010. In May 2011, a majority of the remaining defendants, including the XL Defendants, executed a formal Settlement Agreement with the Class Action plaintiffs to settle the Class Action and dismiss all claims with prejudice. The settlement was approved by the District Court by Order dated March 30, 2012. The XL Defendants’ portion of the defendants’ aggregate settlement payment is $6.75 million. Certain objectors have filed appeals from the District Court’s March 30, 2012 Order approving the settlement.

          Various XL entities have been named as defendants in three of the many tag-along actions that were consolidated into the MDL for pretrial purposes. The complaints in these tag-along actions make allegations similar to those made in the Amended Complaint but do not purport to be class actions. On April 4, 2006, a tag-along complaint was filed in the U.S. District Court for the Northern District of Georgia on behalf of New Cingular Wireless Headquarters LLC and several other corporations and remains pending against approximately 100 defendants, including Greenwich Insurance Company, XL Specialty Insurance Company, XL Insurance America, Inc., XL Insurance Company Limited and XL-Cayman. On or about May 21, 2007, a tag-along complaint was filed in the U.S. District Court for the District of New Jersey on behalf of Henley Management Company, Big Bear Properties, Inc., Northbrook Properties, Inc., RCK Properties, Inc., Kitchens, Inc., Aberfeldy LP and Payroll and Insurance Group, Inc. against multiple defendants, including “XL Winterthur International.” On October 12, 2007, a complaint in a third tag-along action was filed in the U.S. District Court for the Northern District of Georgia by Sears, Roebuck & Co., Sears Holdings Corporation, Kmart Corporation and Lands’ End Inc. against many named defendants including X.L. America, Inc., XL Insurance America, Inc., XL Specialty Insurance Company and XL Insurance (Bermuda) Ltd. On October 17, 2011, the District Court lifted the stay of the tag-along actions, including the three in which the XL entities are named defendants. On April 30, 2012, the District Court set a pre-trial litigation schedule governing the tag-along actions.

          The Company and its subsidiaries are subject to litigation and arbitration in the normal course of its business. These lawsuits and arbitrations principally involve claims on policies of insurance and contracts of reinsurance and are typical for the Company and for the property and casualty insurance and reinsurance industry in general. Such legal proceedings are considered in connection with the Company’s loss and loss expense reserves. Reserves in varying amounts may or may not be established in respect of particular claims proceedings based on many factors, including the legal merits thereof. In addition to litigation relating to insurance and reinsurance claims, the Company and its subsidiaries are subject to lawsuits and regulatory actions in the normal course of business that do not arise from or directly relate to claims on insurance or reinsurance policies. This category of business litigation typically involves, among other things, allegations of underwriting errors or misconduct, employment claims, regulatory activity, shareholder disputes or disputes arising from business ventures. The status of these legal actions is actively monitored by management.

          Legal actions are subject to inherent uncertainties, and future events could change management’s assessment of the probability or estimated amount of potential losses from pending or threatened legal actions. Based on available information, it is the opinion of management that the ultimate resolution of pending or threatened legal actions, both individually and in the aggregate, will

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not result in losses in amounts exceeding recognized reserves having a material adverse effect on the Company’s position or liquidity at June 30, 2012.

ITEM 1A. RISK FACTORS

          Refer to Item 1A. Risk Factors in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011 for further information.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

          (c) Purchases of Equity Securities by the Issuer and Affiliate Purchasers

          The following table provides information about purchases by the Company during the three months ended June 30, 2012 of equity securities that are registered by the Company pursuant to Section 12 of the Exchange Act:

	Total Number of Shares Purchased		Average Price Paid per Share		Total Numberof SharesPurchased asPart of PubliclyAnnouncedPlans orPrograms		ApproximateValue of Sharesthat May Yet BePurchasedUnder the Plans or Programs (1) (2)
April 1, 2012 to April 30, 2012		2,053	$	21.69		-	$	650.0 million
May 1, 2012 to May 31, 2012		3,007,103		20.83		2,994,077		587.7 million
June 1, 2012 to June 30, 2012		3,121,693		20.08		3,120,076		525.0 million
Total		6,130,849	$	20.45		6,114,153	$	525.0 million

(1)

Shares purchased in connection with the vesting of restricted shares granted under the Company’s restricted stock plan do not represent shares purchased as part of publicly announced plans or programs. All such purchases were made in connection with satisfying tax withholding obligations of those employees. These shares were not purchased as part of the Company’s share buyback programs noted below.

(2)

On February 27, 2012, the Company announced that its Board of Directors approved a share buyback program, authorizing the Company to purchase up to $750 million of its ordinary shares. This authorization replaced the approximately $190 million remaining under the share buyback program that was authorized in November 2010 as described in further detail in Item 8, Note 18, “Share Capital,” to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011. During the three months ended March 31, 2012 and the three months ended June 30, 2012, the Company purchased and canceled 4.7 million and 6.1 million ordinary shares under the new program for $100.0 million and $125.0 million, respectively. All share buybacks were carried out by way of redemption in accordance with Irish law and the Company’s constitutional documents. All shares so redeemed were canceled upon redemption. At June 30, 2012, $525.0 million remained available for purchase under the new program.

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ITEM 6. EXHIBITS

The following exhibits are filed as exhibits to this Quarterly Report:

10.1	XL Group plc Reinsurance Supplemental Long Term Cash Incentive Compensation Plan, incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K (No. 1-10804) filed on April 30, 2012
10.2*	X.L. America, Inc. Deferred Compensation Plan
10.3*	2012 Form of Letter Agreement between XL Global Services, Inc. and/or XL Group plc and certain executive officers
12*	Statements regarding computation of ratios
31*	Rule 13a-14(a)/15d-14(a) Certifications
32*	Section 1350 Certification
101.INS*	XBRL Instance Document**
101.SCH*	XBRL Taxonomy Extension Schema Document**
101.CAL*	XBRL Taxonomy Extension Calculation Linkbase Document**
101.LAB*	XBRL Taxonomy Extension Label Linkbase Document**
101.PRE*	XBRL Taxonomy Extension Presentation Linkbase Document**
101.DEF*	XBRL Taxonomy Extension Definition Linkbase Document**

*	Filed herewith.
**	These interactive data files are furnished and deemed not filed or part of a registration statement or prospectus for purposes of Sections 11 or 12 of the Securities Act of 1933, as amended, are deemed not filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended and otherwise are not subject to liability under those sections.

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SIGNATURES

          Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Date: August 8, 2012
	XL Group plc
	(Registrant)
	/s/ MICHAEL S. MCGAVICK
	Name: Michael S. McGavick
	Title: Chief Executive Officer and Director
	XL Group plc
Date: August 8, 2012
	/s/ PETER R. PORRINO
	Name: Peter R. Porrino
	Title: Executive Vice President and Chief Financial Officer
	XL Group plc

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EX-10.2

Exhibit 10.2

X.L. AMERICA, INC.
DEFERRED COMPENSATION PLAN

(effective January 1, 2012)

          X.L. America, Inc. (the “Company”) adopted the X.L. America, Inc. Non-Qualified Deferred Compensation Plan (the “Prior Plan”), effective as of December 1, 1998. It was restated and renamed the X.L. America, Inc. Non-Qualified Benefit Replacement Plan, effective January 1, 2004. Effective January 1, 2004, the X.L. America, Inc. Key Employee Deferred Compensation Plan was merged into this Plan and the Plan was again restated and renamed the X.L. America, Inc. Deferred Compensation Plan.

          The Plan was amended and restated effective January 1, 2009, to comply with Code Section 409A, as enacted by the American Jobs Creation Act of 2004 and applicable regulations thereunder; provided, however, that any provision required to be effective on and after January 1, 2005 in order for the Plan to comply with Code Section 409A shall become effective as of January 1, 2005 (or such later date as shall be permitted under applicable Code Section 409A transition rules). The Plan is amended and restated January 1, 2012.

          The Plan is unfunded and maintained primarily for the purpose of providing deferred compensation to a select group of management or highly compensated employees, and is not intended to be qualified under Section 401(a) of the Internal Revenue Code.

ARTICLE I
DEFINITIONS

          Each word used herein not defined below that begins with a capital letter and is defined in the Qualified Plan shall have the same definition as the definition given to that word in the Qualified Plan. Wherever used herein, the following terms shall have the meanings hereinafter set forth:

          1.1          “Account” or “Deferred Compensation Account” means the separate account established under the Plan for each Participant, as described in Section 5.1.

          1.2          “Administrator” means the Committee or such person or persons as may be appointed by the Committee to be responsible for those functions assigned to the Administrator under the Plan.

          1.3          “Affiliate” means any entity that is a member of a “controlled group” of corporations with the Company under Code Section 414(b) or a trade or business under common control with the Company under Code Section 414(c); provided, however, that solely for purposes of determining whether a Termination of Employment has occurred, in applying Code Sections 1563(a)(1), (2) and (3) for purposes of Code Section 414(b), the language “at least 50 percent” will be used instead of “at least 80 percent” each place it appears, and in applying

Treasury Regulation Section 1.414(c)-2 for purposes of Code Section 414(c), the language “at least 50 percent” will be used instead of “at least 80 percent” each place it appears. In addition, to the extent that the Administrator determines that legitimate business criteria exist to use a reduced ownership percentage to determine whether an entity is an Affiliate for purposes of determining whether a Termination of Employment has occurred, the Administrator may designate an entity that would meet the definition of “Affiliate” substituting 20 percent in place of 50 percent in the preceding sentence as an Affiliate in Appendix A hereto. Such designation shall be made by December 31, 2007 or, if later, at the time a 20 percent or more ownership interest in such entity is acquired.

          1.4          “Annual Bonus” means any cash compensation to which a Participant becomes entitled under a written plan or arrangement of a Participating Employer providing for the calculation and payment of incentive compensation with respect to a Plan Year after the close of such Plan Year, determined prior to reduction for elective deferrals to this Plan or to any qualified retirement plan, and for premium conversion and flexible spending amounts under a cafeteria plan described in Code Section 125.

          1.5          “Base Salary” means the salary to which a Participant becomes entitled from a Participating Employer during or with respect to a Plan Year, including commissions, but not including Annual Bonus or other incentive Compensation, determined prior to reduction for elective deferrals to this Plan or to any qualified retirement plan, and for premium conversion and flexible spending amounts under a cafeteria plan described in Code Section 125; provided, however, that Annual Salary shall not include expense reimbursements, severance, or the value of any benefits paid to or on behalf of the Executive under any fringe benefit, pension or insurance plan or program. Only Annual Salary which becomes payable while the Executive is a Participant shall be taken into account for purposes of the Plan.

          1.6          “Beneficiary” means the person, persons or trust designated by a Participant as direct or contingent beneficiary in the manner prescribed by the Administrator. The Beneficiary of a Participant who has not effectively designated a beneficiary shall be the Participant’s estate.

          1.7          “Board of Directors” means the Board of Directors of the Company.

          1.8          “Change in Control” shall mean and shall be deemed to have occurred as of the date of the first to occur of the following events:

                (a)          any Person or Group acquires stock of the Company that, together with stock held by such Person or Group, constitutes more than 50% of the total Fair Market Value or total voting power of the stock of the Company. However, if any Person or Group is considered to own more than 50% of the total Fair Market Value or total voting power of the stock of the Company, the acquisition of additional stock by the same Person or Group is not considered to cause a Change in Control of the Company. An increase in the percentage of stock owned by any Person or Group as a result of a transaction in which the Company acquires its stock in exchange for property will be treated as an acquisition of stock for purposes of this subsection. This subsection applies

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only when there is a transfer of stock of the Company (or issuance of stock of the Company) and stock in the Company remains outstanding after the transaction;

                (b)          any Person or Group acquires (or has acquired during the 12-month period ending on the date of the most recent acquisition by such Person or Group) ownership of stock of the Company possessing 30% or more of the total voting power of the stock of the Company;

                (c)          a majority of members of the Company’s Board is replaced during any 12-month period by Directors whose appointment or election is not endorsed by a majority of the members of the Company’s Board prior to the date of the appointment or election; or

                (d)          any Person or Group acquires (or has acquired during the 12-month period ending on the date of the most recent acquisition by such Person or Group) assets from the Company that have a total gross fair market value equal to or more than 40% of the total gross fair market value of all of the assets of the Company immediately prior to such acquisition or acquisitions. For this purpose, gross fair market value means the value of the assets of the Company, or the value of the assets being disposed of, determined without regard to any liabilities associated with such assets. However, no Change in Control shall be deemed to occur under this subsection (d) as a result of a transfer to:

                    (i)           A shareholder of the Company (immediately before the asset transfer) in exchange for or with respect to its stock;

                    (ii)          An entity, 50% or more of the total value or voting power of which is owned, directly or indirectly, by the Company;

                    (iii)         A Person or Group that owns, directly or indirectly, 50% or more of the total value or voting power of all the outstanding stock of the Company; or

                    (iv)         An entity, at least 50% of the total value or voting power of which is owned, directly or indirectly, by a person described in clause (iii) above.

          For these purposes, the term “Person” shall mean an individual, corporation, association, joint-stock company, business trust or other similar organization, partnership, limited liability company, joint venture, trust, unincorporated organization or government or agency, instrumentality or political subdivision thereof. The term “Group” shall have the meaning set forth in Rule 13d-5 of the Securities Exchange Commission (“SEC”), modified to the extent necessary to comply with Treasury Regulation Section 1.409A-3(i)(5), or any successor thereto in effect at the time a determination of whether a Change in Control has occurred is being made. If any one Person, or Persons acting as a Group, is considered to effectively control the Company as described in subsections (b) or (c) above, the acquisition of additional control by the same Person or Persons is not considered to cause a Change in Control.

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          1.9           “Committee” means the Pension Committee, which is authorized to administer the Plan and to perform the functions described in Article VII.

          1.10          “Company” means X.L. America, Inc.

          1.11          “Compensation” means Base Salary and/or Annual Bonus, as applicable, determined prior to reduction for elective contributions to this Plan, the Qualified Plan or any other employee benefit plan of the Participating Employer.

          1.12          “Deferral Period” means the period described in Section 3.3 of the Plan.

          1.13          “Disability” means that the Participant (a) is unable to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment that can be expected to result in death or can be expected to last for a continuous period of not less than 12 months; (b) is, by reason of any medically determinable physical or mental impairment that can be expected to result in death or can be expected to last for a continuous period of not less than 12 months, receiving income replacement benefits for a period of not less than 3 months under an accident and health plan covering employees of the Company; or (c) has been determined to be totally disabled by the Social Security Administration.

          1.14          “Elective Deferral” means the amount of Compensation a Participant elects to defer pursuant to Article III of the Plan.

          1.15          “Eligible Executive” or “Executive” means a member of a select group of management or highly compensated employees of the Participating Employers, who has been selected to be a Participant in the Plan by the Committee.

          1.16          “Excess Compensation” means the Participant’s Compensation payable during a Plan Year which exceeds the limitation on compensation applicable to qualified plans under Code Section 401(a)(17), as such limitation may be adjusted from time to time.

          1.17          “Hardship” means an unforeseeable emergency that is caused by an event beyond the control of the Participant that would result in severe financial hardship to the Participant resulting from (a) a sudden and unexpected illness or accident of the Participant or the spouse or a dependent of the Participant (as defined in Code Section 152(a)), (b) a loss of the Participant’s property due to casualty (including the need to rebuild a home following damage to a home not otherwise covered by insurance, for example, not as a result of a natural disaster), or (c) such other extraordinary and unforeseeable circumstances arising as a result of events beyond the control of the Participant, all as determined in the sole discretion of the Administrator. In addition, the need to pay for medical expenses, including non-refundable deductibles, as well as for the costs of prescription drug medication, or the need to pay for the funeral expenses of a spouse or a dependent may also constitute a Hardship event. The Administrator shall determine whether the circumstances presented by the Participant constitute an unanticipated emergency. Such circumstances and the Administrator’s determination will depend on the facts of each case, but, in any case, payment may not be made to the extent that such hardship is or may be relieved as described in Sections 6.1.1 through 6.1.4 below.

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          1.18          “Key Employee” means a “key employee” as defined for purposes of Code Section 416(i), without regard to paragraph (5) thereof, of the Company or any Affiliate, subject to the following modifications. An employee is a Key Employee if, as of the date of determination, he or she is (a) one of the 50 (or, if less, the greater of three or 10% of all employees) highest-paid officers of the Company or any Affiliate having annual compensation greater than $135,000 (as adjusted under Code Section 415(d)); (b) a 5% owner of the Company or any Affiliate; or (c) a 1% owner of the Company or any Affiliate having annual compensation of more than $150,000. If an individual is a Key Employee at any time during the twelve month period ending on December 31 of a Plan Year, he or she shall be treated as a Key Employee for the 12-month period beginning on April 1 of the Plan Year following such December 31. For purposes of this Section 1.18, the term “compensation” will be defined in accordance with Treasury Regulation Section 1.415(c)-2(d)(2); provided, however, that compensation paid to or on behalf of an individual who is not a Participant and who is a non-resident alien of the U.S. will not be taken into account hereunder to the extent that the compensation is not includable in gross income under the Code and is not effectively connected to the conduct of a trade or business within the U.S. Whether an individual is a Key Employee will be determined in accordance with the requirements of Code Section 409A.

          1.19          “Matching Contribution” means the amounts credited to a Participant’s Account under Article IV of the Plan with respect to Elective Deferrals.

          1.20          “Participant” means an Executive or former Executive who elects to participate in the Plan in accordance with the terms and conditions of the Plan or who has an Account in the Plan that has not been fully distributed.

          1.21          “Participating Employer” means the Company, Global Credit Analytics, Inc., XL Insurance Company of New York, Inc., XL Specialty Insurance Company, XL Reinsurance America, Inc., XL Global Services, Inc., XL Insurance America, Inc. and each other Affiliate that, with the approval of the Administrator, has joined the Plan by executing a declaration of joinder.

          1.22          “Plan” means X.L. America, Inc. Deferred Compensation Plan, as set forth herein or as it may be amended or restated from time to time.

          1.23          “Plan Year” means the calendar year.

          1.24          “Qualified Plan” means the X.L. America, Inc. Employee Savings Plan, as from time to time amended.

          1.25          “Scheduled Distribution” means a distribution from a Participant’s Scheduled Distribution Sub-Account in accordance with Section 6.3.

          1.26          “Scheduled Distribution Sub-Accounts” or “Sub-Accounts” means the separate bookkeeping accounts established by the Administrator under Section 5.1 to record the portion(s) of a Participant’s Account subject to separate Scheduled Distribution elections.

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         1.27          “Termination of Employment” means, with respect to an Executive, the severing of employment with the Company and any Affiliates, voluntarily or involuntarily, for any reason. A Termination of Employment will be deemed to have occurred if the facts and circumstances indicate that the Company and the Participant reasonably anticipate that no further services will be performed after a certain date or that the level of bona fide services the Participant will perform for the Company and its Affiliates after such date (whether as an employee or as an independent contractor) will permanently decrease to no more than 20% of the average level of bona fide services performed (whether as an employee or an independent contractor) over the immediately preceding 36-month period (or the full period of services to the employer if the Participant has been providing services to the Company and its Affiliates less than 36 months). A Participant will not be deemed to have incurred a Termination of Employment while he or she is on military leave, sick leave, or other bona fide leave of absence (such as temporary employment by the government) if the period of such leave does not exceed six months or such longer period as the Participant’s right to reemployment with the Company is provided either by statute or by contract. For this purpose, a leave of absence is bona fide only if there is a reasonable expectation that the Participant will return to employment at the conclusion of the leave. If the period of leave exceeds six months and the Participant’s right to reemployment is not provided either by statute or by contract, the Termination of Employment will be deemed to occur on the first date immediately following such six-month period. Whether an individual has incurred a Termination of Employment shall be determined in accordance with the provisions of Section 409A.

         1.28          “Valuation Date” means the close of business of each business day, or such other valuation date or dates established by the Administrator.

ARTICLE II
PARTICIPATION

          2.1           Eligibility. Each Executive may become a Participant upon the effective date of his or her designation as an Executive eligible for participation in the Plan by the Committee.

          2.2           Participation in the Plan. An Eligible Executive may elect to participate in the Plan for any Plan Year by delivering to the Administrator a properly executed election at the time and in the form provided by the Administrator, pursuant to which the Eligible Executive elects to defer receipt of a specified portion of the Compensation that would otherwise be payable to such Executive for the Plan Year, as described in Article III hereof.

          2.3           Cessation of Participation. An Executive shall cease to be a Participant in the Plan if (a) he or she incurs a Termination of Employment for any reason, (b) he or she remains in the service of a Company but ceases to be an Eligible Executive as described in Section 1.15 due to a change in employment status, except to the extent that the Committee determines otherwise, or (c) the Plan is terminated or otherwise amended so that the Executive ceases to be eligible for participation; provided, however, that such individual shall continue to be a Participant solely with respect to his or her vested Account balance until such Account balance is distributed from the Plan. Such cessation of participation shall be effective upon the date of the change in status

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described in clause (a) above, on the last day of a designated Deferral Period in the case of a change in status described in clause (b) above, or upon the effective date of an amendment or termination described in (c) above.

ARTICLE III
DEFERRAL OF COMPENSATION

          3.1           Election to Defer. A Participant may elect to defer receipt of a portion of his or her Compensation for a Plan Year by delivering a properly executed election to the Administrator within the time specified in Section 3.2. The Participant’s election shall be in a written form acceptable to the Administrator and shall specify:

                 3.1.1.     the whole percentage of Excess Compensation for the Plan Year to be deferred to the Plan, which percentage may not exceed 5%;

                 3.1.2.     the whole percentage of Base Salary, other than Annual Bonus, for the Plan Year to be deferred to the Plan, which percentage may not exceed 50%;

                 3.1.3.     the whole percentage of Annual Bonus for the Plan Year to be deferred to the Plan, which percentage may not exceed 100% (reduced as necessary to provide for the deferral under Section 3.1.1);

                 3.1.4.     if applicable, the investment fund or funds in which the Participant’s Elective Deferrals, and Matching Contributions attributable to such Elective Deferrals, will be deemed to be invested pursuant to Section 5.2;

                 3.1.5.     if applicable, the specific Scheduled Distribution Sub-Account or Sub-Accounts into which all or a portion of such Elective Deferrals and Matching Contributions will be directed, as described in Section 6.3; and

                 3.1.6.     to the extent permitted by the Administrator under Section 6.4.1, the payment commencement date and method of distribution to apply to benefits distributable upon the Participant’s Termination of Employment.

          The deferral percentages under Section 3.1.2 and 3.1.3 shall be applied without regard to an election to defer under Section 3.1.1. Elective Deferrals to the Plan shall be reduced to the extent necessary to pay federal, state or local employment taxes, including applicable FICA and FUTA taxes required to be withheld under Section 3101 of the Code, and any other required withholdings as determined by the Administrator.

          An Executive who elects not to participate in the Plan at the time he or she first becomes eligible to do so may elect to become a Participant in any subsequent Plan Year by filing an election to defer Compensation as described above within the time provided in Section 3.2, provided that he or she is then eligible to participate in the Plan.

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3.2          Date for Filing Election.

               3.2.1.     Except as provided below, an election to defer Compensation to be earned in a Plan Year shall be filed by the Participant with the Administrator as of a date established by the Administrator which is no later than December 31 of the Plan Year preceding the year in which such Compensation is earned.

               3.2.2.     In the case of an individual first employed as an Executive or first becoming eligible for this Plan (and any similar account-based deferred compensation plan of the Company) during a Plan Year, an election to defer Compensation (which may include Annual Bonus) earned subsequent to the initial date of employment or eligibility and subsequent to the date of such election may, to the extent permitted by the Plan Administrator, be filed by such Executive with the Administrator within thirty (30) days of such initial date of service or eligibility.

               3.2.3.     An election to defer Annual Bonus meeting the requirements for “performance-based” compensation under Treasury Regulation Section 1.409A-1(e) shall be filed with the Administrator as of a date established by the Administrator which is at least six months prior to the end of the performance period in which such Annual Bonus is earned, provided that (a) performance criteria have been established in writing by not later than 90 days after the commencement of the applicable performance period and the outcome is substantially uncertain at the time the criteria are established, (b) the Participant is in employment with the Company continuously from the later of the beginning of the performance period or the date such performance criteria are set, and (c) the election is made before such performance-based compensation has become readily ascertainable (i.e., is both calculable in amount and substantially certain to be paid).

          3.3         Deferral Period. The Deferral Period for a Participant’s Compensation earned during any Plan Year shall begin on the first day of such Plan Year, provided that the Participant has filed an election to defer Compensation prior thereto, as described in Section 3.2.1. Notwithstanding the foregoing, in the case of an individual who is first employed as an Executive or who first becomes eligible for participation during a Plan Year, the Deferral Period shall begin as of the first day of the payroll period beginning after the filing of a timely election by the Participant in such Plan Year, as described in Section 3.2.2. In each case, such Deferral Period shall end on the last day of the Plan Year. The Deferral Period for Annual Bonus meeting the requirements for “performance-based” compensation under Treasury Regulation Section 1.409A-1(e) shall be the performance period (which shall not be shorter than a Plan Year) to which such Annual Bonus relates.

          3.4          Revocation or Change of Deferral Election.

               3.4.1.      A Participant may not voluntarily revoke or amend an election to defer Compensation under Section 3.1.1 after commencement of the Deferral Period. Such election shall automatically expire at the conclusion of the applicable Deferral Period, unless renewed within the time provided in Section 3.2.

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               3.4.2.     A Participant may not revoke or amend an election to defer Annual Bonus meeting the requirements for “performance-based” compensation under Treasury Regulation Section 1.409A-1(e) after a date established by the Administrator which is not later than six months prior to the end of the performance period in which such Annual Bonus is earned; except that an election to defer Annual Bonus under Section 3.2.2 may not be revoked during the Deferral Period.

               3.4.3.     Notwithstanding the above, if a Participant incurs a Hardship, the Participant’s Elective Deferrals under this Plan may, upon the request of the Participant and with the consent of the Administrator, be permanently suspended for a period of six (6) months (the “suspension period”). At the end of the suspension period, the Participant’s Elective Deferrals shall automatically resume, provided that the Participant has timely filed a deferral election under Sections 3.1 and 3.2 with respect to the Deferral Period in effect when the suspension period ends.

          3.5          Vesting of Elective Deferrals. A Participant shall be 100% vested in the balance of his or her Deferred Compensation Account attributable to Elective Deferrals at all times.

ARTICLE IV
COMPANY CONTRIBUTIONS

          4.1          Matching Contributions. For each Plan Year in which a Participant elects under Section 3.1.1 to defer Excess Compensation, the Company shall make a Matching Contribution to the Participant’s Deferred Compensation Account equal to 140% (or such other percentage as the Board of Directors shall determine) of the amount of such Elective Deferral up to 5% of Excess Compensation.

          4.2          Company Profit Sharing Contributions. The Board of Directors may, in its sole discretion, make such additional contributions to the Plan for a Plan Year as it determines from time to time. Such contributions shall be allocated among Participants in such manner as the Board of Directors shall determine at the time the contribution is determined.

          4.3          Vesting of Company Contributions. A Participant shall be vested in the balance of his or her Deferred Compensation Account attributable to Matching Contributions to the same extent that the Participant is vested in matching contributions under the terms of the Qualified Plan. Unless the Board of Directors determines otherwise, a Participant shall be vested in the balance of his or her Deferred Compensation Account attributable to Company contributions under Section 4.2 to the same extent that the Participant is vested in similar Company contributions under the terms of the Qualified Plan. Amounts in the Participant’s Deferred Compensation Account attributable to benefits accrued under the Amended and Restated XL America Inc. Excess Benefit Savings Plan (the “Excess Plan”) shall vest in accordance with the terms of the Excess Plan. All benefits under the Plan shall become 100% vested upon the occurrence of a Change in Control.

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ARTICLE V
INVESTMENT OF DEFERRED COMPENSATION

          5.1          Deferred Compensation Account. The Administrator shall establish a Deferred Compensation Account on the books of the Plan for each Participant, reflecting Elective Deferrals, Matching Contributions and other Company contributions made for the Participant’s benefit, any amounts transferred to the Plan from the XL America Inc. Key Employee Deferred Compensation Plan and the Amended and Restated XL America Inc. Excess Benefit Savings Plan, together with any adjustments for income, gain or loss attributable thereto under Section 5.2, and any payments, distributions, transfers or forfeitures therefrom. The opening balance of the Participant’s Deferred Compensation Account as of January 1, 2012 shall equal the balance of such Account as of the close of the preceding business day.

          5.2          Time for Crediting Contributions. Elective Deferrals to the Plan with respect to any pay period will normally be credited to the Participant’s Account within five (5) business days of the date that corresponding contributions attributable to Compensation earned in such pay period are credited under the Qualified Plan or would otherwise be paid to the Participant; provided, however, that no adjustment of earnings or losses shall be made with respect to Elective Deferrals under Section 5.3 prior to the earlier of (a) the 15^th business day of the calendar month following the calendar month in which the Elective Deferral would otherwise have been paid to the Participant but for the Participant’s deferral election, or (b) the date such amounts are actually credited to the Participant’s Account on the books of the Plan. Company contributions for any Plan Year will be credited to the Plan no later than the date for filing the Company’s Federal income tax returns for the Company’s corresponding fiscal year, with extensions.

          5.3          Hypothetical Investment of Accounts. The Deferred Compensation Account of a Participant, including each Sub-Account thereof, shall be adjusted as of each Valuation Date to reflect the income, gain or loss that would accrue to such Account, if assets in the Account were invested as described in this Section 5.2. Each Participant shall direct the hypothetical investment of the Elective Deferrals and Matching Contributions credited to the Plan on his or her behalf among such investment funds as are from time to time made available by the Committee. A Participant may, as of any Valuation Date, change the investment allocation of future Elective Deferrals or Matching Contributions, and may elect to transfer all or a portion of the balance of his or her Account hypothetically invested in one investment fund to any other investment fund or funds then available under the Plan, by directing the Administrator in such form and at such time as the Administrator shall require.

          The hypothetical investment fund options available under the Plan shall be those designated by the Committee from time to time in its discretion. The Administrator may promulgate uniform and nondiscriminatory rules and procedures governing investment elections under the Plan, including rules governing how credits or debits to an Account or Sub-Account shall be allocated among investment funds in the absence of a valid election.

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          5.4          Statement of Account. A statement shall be sent to each Participant as to the balance of his or her Deferred Compensation Account at least once each Plan Year. Electronic distribution (including a reminder that such statement is available electronically) will satisfy this requirement.

ARTICLE VI
PAYMENT OF DEFERRED COMPENSATION

          6.1          Hardship Distributions. A Participant may request that all or a portion of his or her vested Account balance be distributed at any time by submitting a written request to the Administrator, provided that the Participant has incurred a Hardship, and the distribution is necessary to alleviate such Hardship. In determining whether the Hardship distribution request should be approved, the Administrator may rely on the Participant’s representation that the Hardship cannot be alleviated:

                6.1.1.     through reimbursement or compensation by insurance or otherwise;

                6.1.2.     by the Participant taking any withdrawals then available to him or her under the terms of the Qualified Plan;

                6.1.3.     by reasonable liquidation of the Participant’s assets, including amounts available for withdrawal from the Qualified Plan, to the extent such liquidation would not itself cause a severe financial hardship; or

                6.1.4.     by cessation of his or her elective deferrals under Section 3.4.3 of this Plan or a similar deferred compensation plan to the extent available.

          6.2          Administration of Hardship Distributions. The Administrator shall deem a distribution to be necessary to alleviate a Hardship if the distribution does not exceed the amounts necessary to satisfy the Participant’s Hardship, plus amounts necessary to pay taxes reasonably anticipated as a result of the distribution. The Account balance that is not distributed pursuant to the Hardship request shall remain in the Plan. Distributions to alleviate a Hardship will be made as soon as administratively feasible after the Administrator has reviewed and approved the request. An amount to be distributed for Hardship shall be debited from the Participant’s Deferred Compensation Account not held in a Scheduled Distribution Sub-Account, or (if such amount is not sufficient) from the Sub-Account(s) having the latest scheduled distribution date.

          6.3          Scheduled Distribution. A Participant may elect to receive a Scheduled Distribution with respect to an Elective Deferral at the time he or she files the applicable deferral election under Section 3.1. A Participant may elect in accordance with Section 3.1.5 to direct all or a portion of his or her Elective Deferrals for the Plan Year into one (or, if permitted by the Administrator, more than one) Sub-Account(s), provided that any such Sub-Account has a scheduled distribution date which is not earlier than twelve (12) months after the end of the Deferral Period to which the Elective Deferral relates. The Administrator may establish uniform and nondiscriminatory rules and procedures governing Scheduled Distribution Sub-Accounts,

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including establishing limitations on the number of Sub-Accounts available to Participants for any Deferral Period or in the aggregate, and the minimum length of deferral to be provided under any newly-established Sub-Account, as the Administrator deems appropriate.

          To the extent permitted by the Administrator at the time of election, such election may designate whether the elected Scheduled Distribution will be paid as a result of the Participant’s intervening death, Disability or Termination of Employment, or alternatively will continue to apply notwithstanding such intervening event. Except as otherwise elected by a Participant under the preceding sentence, an election of a Scheduled Distribution shall automatically terminate upon the Participant’s death, Disability or Termination of Employment prior to age 65, at which time the provisions of Sections 6.4, 6.5 and 6.6 shall govern distribution of the Participant’s Account; provided, however, that, unless the Participant elects otherwise with the consent of the Administrator, (1) a Scheduled Distribution Sub-Account payable at age 65 shall be paid when the Participant attains age 65, without regard to the Participant’s intervening Termination of Employment (other than due to death); and (2) a Participant’s intervening Termination of Employment (other than due to death) shall not accelerate a Scheduled Distribution then in pay status.

          A Participant may, with the consent of the Administrator and to the extent permitted under Code Section 409A and regulations thereunder, elect to (a) revoke a Scheduled Distribution (provided that the Participant’s Scheduled Distribution election would otherwise automatically terminate upon the Participant’s Termination of Employment for any reason), in which case the balance of the applicable Sub-Account will be restored to the Participant’s Deferred Compensation Account, or (b) extend to a later date the date permitted under Section 6.6 on which a Scheduled Distribution will occur, in which case the applicable Sub-Account will be redesignated (and merged with another existing Sub-Account having the same designated distribution date). A Participant may make an election under the preceding sentence by filing a new election prior to his or her Termination of Employment at such time and in such form as the Administrator shall designate. Any election to revoke or extend the date of a Scheduled Distribution shall not take effect until at least twelve months after the date on which it is made and must provide for a deferred distribution date not earlier than five years after the date such Scheduled Distribution was otherwise scheduled to be made and not later than the date set forth in Section 6.6. A Scheduled Distribution may be made in a single lump sum payment or in installments over two to eleven years (as described in Section 6.5.1 or 6.5.2, respectively).

          6.4          Death or Other Termination of Employment.

                6.4.1.     Initial Distribution Election. A Participant who has incurred a Termination of Employment, whether by reason of voluntary or involuntary termination, death or Disability (each a “Distribution Event”), shall receive distribution of his or her Account (other than a Scheduled Distribution Sub-Account having a Scheduled Distribution date prior to the date of Termination of Employment or a Scheduled Distribution Sub-Account subject to a later Scheduled Distribution date with respect to which the Participant has elected under Section 6.3 that no intervening Distribution Event shall apply) in a single lump sum payment as soon as practicable but in any event within

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ninety (90) days following such Termination of Employment. Notwithstanding the foregoing, the Administrator may permit a Participant to elect a later payment commencement date permitted under Section 6.6, or an alternate method of distribution permitted under Section 6.5, by filing a written request with the Administrator at the time the Participant files an initial deferral election under Section 3.2. To the extent permitted under rules established by the Administrator at the time of election, such an election may separately specify different times or available methods of payment for different Distribution Events.

                6.4.2.     Changes in Distribution Election. The Administrator may permit a Participant to defer the commencement of his or her distribution to a date permitted under Section 6.6, or select an alternative method of distribution permitted under Section 6.5, after the initial deferral election by filing a written request with the Administrator. Such a change election shall not take effect until at least twelve months after the date on which it is made and shall be effective only if (a) the election is filed with the Administrator before the Participant’s Termination of Employment; (b) the election does not accelerate the timing or payment schedule of any distribution; (c) the payment commencement date in the change election is not less than five years after the date the distribution would otherwise have commenced for the Distribution Event without regard to such election; and (d) the Administrator approves such election. Except as otherwise provided in Section 6.7, a Participant’s distribution election shall become irrevocable upon the Participant’s Termination of Employment.

                6.4.3.     Key Employees. Notwithstanding the foregoing, in the case of a Key Employee who has a Termination of Employment (other than due to death) while any stock of the Company or any Affiliate is publicly traded on an established securities market or otherwise, distribution of the Participant’s Account on account of such Termination of Employment may not be made earlier than six months after the date of the Termination of Employment (or if the Participant dies during such six month period, earlier than the date of the Participant’s death). Such Participant’s Account will be deemed to continue to be adjusted for investment gains or losses pending distribution as set forth in Section 5.3.

                6.4.4.     Death. If a Participant dies before distribution of his or her Account has commenced, the Participant’s benefit under the Plan shall be paid to his or her Beneficiary in a single lump sum payment as soon as practicable following the Participant’s death.

                6.4.5.     Distribution Event. Whether a Participant has incurred a Distribution Event shall be determined by the Administrator in a manner consistent with the requirements of Section 409A and regulations thereunder.

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6.5           Method of Payment.

                6.5.1.     Lump Sum Payment. Distribution of a Participant’s Account pursuant to Section 6.1, 6.3 or 6.4, may be made in a cash lump sum.

                6.5.2.     Installment Distribution. A Participant requesting distribution of an Account pursuant to Section 6.4 may, with the approval of the Administrator, receive distribution in periodic payments in lieu of a lump sum. Periodic payments shall be paid on an annual or quarterly basis, as permitted by the Administrator and elected by the Participant, over a period that does not exceed eleven (11) years. Each installment payment shall be determined by dividing the Participant’s then-current Account balance by the number of payments remaining to be paid; provided, however, that if the Participant’s (or Beneficiary’s) aggregate vested Account balance is less than $100,000 at the time distributions commence due to Termination of Employment, the entire vested account balance shall be paid in a single lump sum payment at the time the Participant’s (or Beneficiary’s) initial installment distribution would otherwise be paid. The Administrator may establish uniform and nondiscriminatory rules and procedures governing the payment of installment distributions, including the maximum period over which installment distributions shall be made and the minimum amount which must be distributed in each installment, as the Administrator deems appropriate.

                6.5.3.     Death of Participant During Installment Distribution Period. If a Participant who has elected installment payments under Section 6.5.2 dies before all amounts held in the Account have been distributed, the remaining Account balance shall be paid to the Beneficiary or Beneficiaries in a single lump sum payment as soon as practicable after the Participant’s death.

                6.5.4.     Limit on Distribution Method. Notwithstanding the foregoing, to the extent permitted under Section 409A, if the Deferred Compensation Account does not exceed $100,000 at the time distributions commence due to the Participant’s Termination of Employment, the distribution shall be made in a single lump-sum payment.

          6.6          Payment Commencement Date. A Participant may not elect a distribution date later than (a) April 1 of the calendar year after the year in which the Participant attains age 70½, or (b) five years after the Participant’s Termination of Employment, if later.

          6.7          Transition Rules. Pursuant to Internal Revenue Service Notice 2005-1, Q&A-19(c), as extended by Notice of Proposed Rulemaking REG-158080-04, a Participant may, prior to December 31, 2007, modify or make new elections regarding distribution of his or her Account(s) under Sections 6.3, 6.4 and 6.5, at such time and in such form as the Administrator shall designate in 2007; provided, however, that no such distribution election may affect payments that the Participant would otherwise receive in 2007 or cause payments to be made in 2007. Pursuant to IRS Notice 2007-78, a Participant may, prior to December 31, 2008, modify or make new elections regarding distribution of his or her Account at such time and in such form as the Administrator shall designate; provided, however, that no such distribution election may

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affect payments that the Participant would otherwise receive in 2008 or cause payments to be made in 2008.

          6.8          Acceleration of Payment Date. Notwithstanding the foregoing, the distribution of benefits hereunder may be accelerated, with the consent of the Administrator, under the following circumstances:

                6.8.1.     Compliance with Domestic Relations Order. To permit payment to an individual other than the Participant as necessary to comply with the provisions of a domestic relations order (as defined in Code Section 414(p)(1)(B));

                6.8.2.     Conflicts of Interest. To permit payment as necessary to comply with the provisions of a Federal government ethics agreement or to avoid violation of an applicable Federal, state, local or foreign ethics law or conflicts of interest law;

                6.8.3.     Payment of Employment Taxes. To permit payment of federal employment taxes under Code Sections 3101, 3121(a) or 3121(v)(2), or to comply with any federal tax withholding provisions or corresponding withholding provisions of applicable state, local, or foreign tax laws as a result of the payment of federal employment taxes, and to pay the additional income tax at source on wages attributable to the pyramiding Code Section 3401 wages and taxes; or

                6.8.4.     Tax Event. Upon a good faith, reasonable determination by the Administrator, and upon advice of counsel, that the Plan fails to meet the requirements of Code Section 409A and regulations thereunder. Such payment may not exceed the amount required to be included in income as a result of the failure to comply with the requirements of Code Section 409A.

          6.9          Delay of Payments. A payment otherwise required to be made under the terms of the Plan may be delayed solely to the extent necessary under the following circumstances, provided that payment is made as soon as possible within the first calendar year after the reason for delay no longer applies:

                6.9.1.     Payments Subject to the Deduction Limitation. The Company reasonably anticipates that such payment would not be deductible under Code Section 162(m);

                6.9.2.     Violation of Law. The Administrator reasonably determines that making the payment will violate Federal securities or other applicable laws; or

                6.9.3.     Other Permitted Event. Upon such other events and conditions as the Commissioner of Internal Revenue shall prescribe in generally applicable guidance

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ARTICLE VII
ADMINISTRATION OF THE PLAN

          7.1          Administration by the Company. The Committee shall be responsible for the general operation and administration of the Plan and for carrying out the provisions thereof. The Committee may appoint such person or persons as it deems appropriate to perform all or any of the functions of the Administrator under the terms of the Plan. To the extent that no such person or persons are appointed, the Committee shall serve as Administrator.

          7.2          General Powers of Administration. The Committee shall have authority and discretion to control and manage the operation and administration of the Plan, including all rights and powers necessary or convenient to the carrying out of its functions hereunder, whether or not such rights and powers are specifically enumerated herein. The Committee may, in its discretion, delegate authority with regard to the administration of the Plan to any individual, officer or committee in accordance with Section 7.2.7 below. Notwithstanding any other provision of the Plan, if an action or direction of any person to whom authority hereunder has been delegated conflicts with an action or direction of the Committee, then the authority of the Committee shall supersede that of the delegate with respect to such action or direction.

          Without limiting the generality of the foregoing, and in addition to the other powers set forth in this Section 7.2, the Committee or its delegate shall have the following express authorities:

                7.2.1.     To construe and interpret the provisions of the Plan; to decide all questions arising thereunder, including, without limitation, questions of eligibility for participation, eligibility for benefits, the validity of any election or designation made under the Plan, and the amount, manner and time of payment of any benefits hereunder; and to make factual determinations necessary or appropriate for such decisions or determination;

                7.2.2.     To prescribe procedures to be followed by Participants, Beneficiaries or alternate payees in filing applications for benefits and any other elections, designations and forms required or permitted under the Plan;

                7.2.3.     To prepare and distribute information explaining the Plan;

                7.2.4.     To receive from the Company and from Participants, Beneficiaries and alternate payees such information as shall be necessary for the proper administration of the Plan;

                7.2.5.     To furnish the Company or the Board of Directors, upon request, such reports with respect to the administration of the Plan as are reasonable and appropriate;

                7.2.6.     To appoint or employ advisors, including legal and actuarial counsel (who may also be counsel to the Company) to render advice with regard to any responsibility of the Committee under the Plan or to assist in the administration of the Plan;

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                7.2.7.     To designate in writing other persons to carry out a specified part or parts of its responsibilities hereunder (including this power to designate other persons to carry out a part of such designated responsibility). Any such person may be removed by the Committee at any time with or without cause;

                7.2.8.     To rule on claims, and to determine the validity of domestic relations orders and comply with such orders; and

                7.2.9.     All rules, actions, interpretations and decisions of the Committee are conclusive and binding on all persons, and shall be given the maximum possible deference allowed by law.

          7.3          Rules of the Administrator. The Administrator may adopt such rules as it deems necessary, desirable or appropriate. When making a determination or calculation, the Administrator shall be entitled to rely upon information furnished by a Participant or Beneficiary, the Company, the legal counsel of the Company, or such other person as it deems appropriate, and shall further be entitled to rely conclusively upon all tables, valuations, certificates, opinions and reports furnished by any actuary, accountant, controller, counsel or other person employed or engaged by the Company with respect to the Plan.

          7.4          Claims Procedure. Any person who believes that he or she is then entitled to receive a benefit under the Plan may file a claim in writing with the Administrator. Except to the extent the Committee adopts an alternate procedure for the review of claims, the procedures in this Section 7.4 shall apply. The Administrator shall, within ninety (90) days of the receipt of a claim, either allow or deny the claim in writing. A denial of a claim shall be written in a manner calculated to be understood by the claimant and shall include: (a) the specific reason or reasons for the denial; (b) specific references to pertinent Plan provisions on which the denial is based; (c) a description of any additional material or information necessary for the claimant to perfect the claim and an explanation of why such material or information is necessary; and (d) an explanation of the Plan’s claim review procedure. A claimant whose claim is denied (or his or her duly authorized representative) may, within sixty (60) days after receipt of denial of the claim: (1) submit a written request for review to the Committee; (2) review pertinent documents; and (3) submit issues and comments in writing. The Administrator shall notify the claimant of the decision of the Committee on review within sixty (60) days of receipt of a request. No legal action may be commenced by a Participant or Beneficiary with respect to a benefit under this Plan without first exhausting the Plan’s administrative claims procedures, and any legal action with respect to a claim that has been finally denied must be commenced no later than one year after the date of the Plan’s final denial of such claim upon appeal.

ARTICLE VIII
GENERAL PROVISIONS

          8.1          Participant’s Rights Unsecured. The right of any Participant to receive future payments under the provisions of the Plan shall be an unsecured claim against the general assets of the Company. The Company shall be under no obligation to establish any separate fund,

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purchase any annuity contract, or in any other way make any special provision or specifically earmark any funds for the payment of amounts called for under the Plan. If the Company chooses to establish such a fund, or purchase such an annuity contract or make any other agreement to provide for such payments, that fund, contract or arrangement shall remain part of the Company’s general assets and no person claiming payments under the Plan shall have any right, title or interest in or to any such fund, contract or arrangement.

          8.2          Non-assignability. None of the benefits, payments, proceeds or claims of any Participant or Beneficiary shall be subject to any claim of any creditor of any Participant or Beneficiary and, in particular, the same shall not be subject to attachment or garnishment or other legal process by any creditor of such Participant or Beneficiary, nor shall any Participant or Beneficiary have any right to alienate, anticipate, commute, pledge, encumber or assign any of the benefits or payments or proceeds which he or she may expect to receive, contingently or otherwise, under the Plan. Notwithstanding the foregoing, the Company shall comply with the terms of a domestic relations order applicable to a Participant’s interest in the Plan, provided that such order does not require the payment of benefits in a manner or amount, or at a time, inconsistent with the terms of the Plan. The Company shall have no liability to any Participant or Beneficiary to the extent that his or her benefit is reduced in accordance with the terms of a domestic relations order that the Company applies in good faith.

          8.3          Taxes. The Administrator shall withhold all federal, state or local taxes that it reasonably believes are required to be withheld from any payments under the Plan.

          8.4          Limitation of Participant’s Rights. Nothing contained in the Plan shall confer upon any person a right to be employed or to continue in the employ of the Company, or interfere in any way with the right of the Company to terminate the employment of a Participant at any time, with or without cause.

          8.5          Receipt and Release. Any payment to any Participant or Beneficiary in accordance with the provisions of the Plan shall, to the extent thereof, be in full satisfaction of all claims against the Company or the Plan, and the Administrator may require such Participant or Beneficiary, as a condition precedent to such payment, to execute a receipt and release to such effect. If requested, such receipt and release shall be executed by the Participant or Beneficiary no later than 90 days after the Participant’s scheduled distribution commencement date. If the period for signing and returning the Release designated by the Company extends into a later taxable year, any payments contingent upon the Release will be made (or begin) in the later taxable year. If any Participant or Beneficiary is determined by the Administrator to be incompetent by reason of physical or mental disability (including minority) to give a valid receipt and release, the Administrator may cause the payment or payments becoming due to such person to be made to another person for his or her benefit without responsibility on the part of the Administrator or the Company to follow the application of such funds.

          8.6          Governing Law. The Plan shall be construed, administered, and governed in all respects under and by the laws of the state of New York. If any provision shall be held by a

- 18 -

court of competent jurisdiction to be invalid or unenforceable, the remaining provisions hereof shall continue to be fully effective.

          8.7          Designation of Beneficiary. A Participant may designate a Beneficiary by so notifying the Administrator in writing, in a form acceptable to the Administrator, at any time before the Participant’s death. A Participant may revoke any Beneficiary designation or designate a new Beneficiary at any time without the consent of a beneficiary or any other person. If no Beneficiary is designated or no designated Beneficiary survives the Participant, payment shall be made in a single lump sum to the Participant’s estate.

          8.8          Successorship. The Plan shall be binding upon and inure to the benefit of the Company and its successors and assigns, and the Participants, and the successors, assigns, designees and estates of the Participants. The Plan shall also be binding upon and inure to the benefit of any successor Company or organization succeeding to substantially all of the assets and business of the Company, but nothing in the Plan shall preclude the Company from merging or consolidating into or with, or transferring all or substantially all of its assets to, another Company which assumes the Plan and all obligations of the Company hereunder. The Company agrees that it will make appropriate provision for the preservation of Participants’ rights under the Plan in any agreement or plan which it may enter into to effect any such merger, consolidation, reorganization or transfer of assets. In such a merger, consolidation, reorganization, or transfer of assets and assumption of Plan obligations of the Company, the term Company shall refer to such other Company and the Plan shall continue in full force and effect.

          8.9          Indemnification. No Committee member shall be personally liable by reason of any instrument executed by him or on his behalf, or action taken by him, in his capacity as a Committee member nor for any mistake of judgment made in good faith. The Company shall indemnify and hold harmless the Plan and each Committee member and each employee, officer or director of the Company or the Plan, to whom any duty, power, function or action in respect of the Plan may be delegated or assigned, or from whom any information is requested for Plan purposes, against any cost or expense (including fees of legal counsel) and liability (including any sum paid in settlement of a claim or legal action with the approval of the Company) arising out of anything done or omitted to be done in connection with the Plan, unless arising out of such person’s fraud or bad faith.

          8.10        Headings and Subheadings. Headings and subheading in this Plan are inserted for convenience only and are not to be considered in the construction of the provisions hereof.

          8.11        Amendment and Termination. The Plan may at any time or from time to time be amended, modified, or terminated by the Board of Directors. No amendment, modification, or termination shall, without the consent of a Participant, adversely affect the Participant’s Deferred Compensation Account at that time. Upon termination of the Plan, the Board of Directors may elect to (a) pay benefits hereunder as they become due as if the Plan had not terminated or (b) to extent permitted by Code Section 409A and regulations thereunder, direct that all payments remaining to be made under the Plan be made in a single lump sum to Participants (or their Beneficiaries).

- 19 -

          IN WITNESS WHEREOF, and pursuant to adoption of this Plan Document by the Board of Directors of the Company has caused this Plan Document to be executed this 26th day of July, 2012 by:

/s/ Richard Pikowski

Richard Pikowski

Assistant Secretary

X.L. America, Inc.

- 20 -

EX-10.3

EXHIBIT 10.3

[Company Letterhead]

[Recipient address]

[Applicable date]

Re: Form of Letter of Agreement--Severance

Dear [Executive]:

                    You and XL Group plc and XL Global Services, Inc. (collectively, the “Company”) wish to enter into this letter agreement (the “Agreement”) to set forth the severance benefits that you will be entitled to if your employment is terminated under the circumstances described below. This Agreement will become effective on the date executed by you below (the “Effective Date”) and will continue in effect through the third anniversary thereof.

                    1.          Except as otherwise set forth in paragraph 2 below, in the event your employment is terminated by the Company prior to the third anniversary of the Effective Date without Cause (as defined in Exhibit B hereto), you shall be entitled to:

(a)          unpaid base salary through the date on which termination without Cause occurs, to be paid in accordance with the Company’s regular payroll practices;
(b)          provided you execute, on or before the date that is fifty (50) days following the date of termination of your employment, a general release of claims against the Company and its affiliates in form and substance satisfactory to the Company and do not revoke such release prior to the end of the seven day statutory revocation period:
	(i)       any unpaid annual bonus earned with respect to the calendar year ending prior to the date of such termination but unpaid as of such date, to be paid at the time such bonus is paid generally to active employees under the applicable bonus plan; and
	(ii)      a cash lump sum payment made, subject to Exhibit C hereto, sixty (60) days after termination of employment equal to the sum of (x) your annual base salary, and (y) your targeted annual bonus for the year of such termination multiplied by a fraction, the numerator of which is the number of days in the calendar year of termination prior to the termination date, and the denominator of which is 365; and
	(iii)     vesting in full upon such termination of employment of the “Sign On Non Qualified Deferred Compensation Contribution” credited upon the commencement of your employment to your account under the XL America Deferred Compensation Program (together with any notional earnings credited thereon).
(c)          your vested accrued benefits, if any, under the employee benefit programs of the Company (including equity-based compensation awards), and reimbursement of properly incurred unreimbursed business expenses under the business expense reimbursement program of the Company, determined in accordance with the applicable terms and provisions of such

employee benefit and expense reimbursement programs (taking into account Section 1(b)(iii) above).

                    2.          In the event your employment is terminated prior to the third anniversary of the Effective Date and within two years following a Change in Control (as defined in Exhibit A hereto) (x) by the Company without Cause or (y) by you for “Good Reason” (as defined in Exhibit B hereto), you shall not be entitled to the payments and benefits provided for in paragraph 1 above, but instead you shall be entitled to the following:

          (a)          unpaid base salary through the date on which termination occurs, to be paid in accordance with the Company’s regular payroll practices;

          (b)          and any unpaid annual bonus earned with respect to the calendar year ending prior to the date of such termination but unpaid as of such date, to be paid at the time such bonus is paid generally to active employees under the applicable bonus plan;

          (c)          a cash lump sum payment made, subject to Exhibit C hereto, sixty (60) days after termination of your employment equal to the sum of (x) two times your annual base salary, and (y) two times your targeted annual bonus for the year of such termination; and

          (d)          vesting in full upon such termination of employment of the “Sign On Non Qualified Deferred Compensation Contribution” credited upon the commencement of your employment to your account under the XL America Deferred Compensation Program (together with any notional earnings credited thereon); and

          (e)          the vested accrued benefits, if any, under the employee benefit programs of the Company (including equity-based compensation awards), and reimbursement of properly incurred unreimbursed business expenses under the business expense reimbursement program of the Company, determined in accordance with the applicable terms and provisions of such employee benefit and expense reimbursement programs (taking into account Section 2(d) above).

                    3.          This Agreement, together with Exhibit A (Change in Control Definition), Exhibit B (Good Reason and Cause Definitions), Exhibit C (Tax-Related Provisions) and Exhibit D (Notice) hereto, contains the entire agreement between the parties concerning the subject matter hereof and supersedes all prior offer letters, agreements, understandings, discussions, negotiations and undertakings, whether written or oral, between the Company and you with respect thereto.

                    4.          This Agreement shall be binding upon and inure to the benefit of the parties hereto and their respective successors, heirs and assigns. None of your rights or obligations under this Agreement may be assigned or transferred by you other than your right to compensation and benefits hereunder, which may be transferred by will or laws of descent and distribution. No provision in this Agreement may be amended unless such amendment is agreed to in writing, signed by you and by a duly authorized officer of the Company. No waiver by any party of any breach by the other party of any condition or provision of this Agreement to be performed by such other party shall be deemed a waiver of a similar or dissimilar condition or provision at the same or any prior or subsequent time. In the event that any provision or portion of this Agreement shall be determined to be invalid or unenforceable for any reason, in whole or in part, the remaining provisions of this Agreement shall be unaffected thereby and shall remain in full force and effect to the fullest extent permitted by law. This Agreement shall be governed by and construed and interpreted in accordance with the laws of the State of New York without reference to the principles of conflict of laws.

                    Please indicate your acceptance by signing, dating and returning an executed copy of this Agreement to:

Daniel J. Losito

SVP & Associate General Counsel-

Global Labor & Employment Law

XL Group

70 Seaview Avenue

Stamford, CT 06902 USA

Yours sincerely,

By:

Title:

[Executive] Date

EXHIBIT A

CHANGE IN CONTROL

A “Change in Control” shall be deemed to have occurred:
	(i)           if any person (which, for all purposes hereof, shall include, without limitation, an individual, sole proprietorship, partnership, unincorporated association, unincorporated syndicate, unincorporated organization, trust, body corporate and a trustee, executor, administrator or other legal representative) (a “Person”) or any group, as defined in Sections 13(d) or 14(d) of the United States Securities Exchange Act of 1934 (other than a group of which you are a member or which has been organized by you), becomes the beneficial owner, directly or indirectly, of securities of the Company representing, or acquires the right to control or direct, or to acquire through the conversion of securities or the exercise of warrants or other rights to acquire securities, 30% or more of either (I) the outstanding Ordinary Shares of the Company, (II) the outstanding securities of the Company having a right to vote in the election of directors, or (III) the combined voting power of the outstanding securities of the Company having a right to vote in the election of directors; or
	(ii)          if there shall be elected or appointed to the Board of Directors of the Company (the “Board”) any director or directors whose appointment or election by the Board or nomination for election by the Company’s shareholders was not approved by a vote of at least a majority of the directors then still in office who were either directors on the date of execution of this Agreement or whose election or appointment or nomination for election was previously so approved; or
	(iii)         upon consummation of a reorganization, scheme of arrangement, merger, consolidation, combination, amalgamation, corporate restructuring, liquidation, winding up, exchange of securities, or similar transaction (each, an “Event”), in each case, in respect of which the beneficial owners of the outstanding Company Ordinary Shares immediately prior to such Event do not, following such Event, beneficially own, directly or indirectly, more than 60% of each of the outstanding equity share capital, and the combined voting power of the then outstanding voting securities entitled to vote in the election of the directors, of the Company and any resulting entity, in substantially the same proportions as their ownership, immediately prior to such Event, of the Ordinary Shares and voting power of the Company; or
	(iv)         if there occurs an Event involving the Company as a result of which 25% of more of the members of the Board of the Company are not persons who were members of the Board immediately prior to the earlier of (x) the Event, (y) execution of an agreement, the consummation of which would result in the Event, or (z) announcement by the Company of an intention to effect the Event; or
	(v)          if the Board adopts a resolution to the effect that, for purposes of this Agreement, a Change in Control has occurred.

EXHIBIT B

GOOD REASON AND CAUSE DEFINITIONS

For purposes of this Agreement, “Good Reason” shall mean any of the following, unless done with your prior express written consent:

          (i)          a material diminution in your base salary;

          (ii)         a material diminution in your authority, duties or responsibilities;

          (ii)         a material diminution in the authorities, duties or responsibilities of the supervisor to whom your are required to report;

          (iii)        a material diminution in the budget over which you retain authority; or

          (iv)        requiring you to be based at any office or location that is greater than 35 miles from the office or location at which you were principally located immediately prior to the Change in Control.

Notwithstanding any provision in this Agreement to the contrary, you must give written notice of your intention to terminate your employment for Good Reason within sixty (60) days after the act or omission which constitutes Good Reason, and the Company shall have thirty (30) days from such notice to remedy the condition, in which case Good Reason shall no longer exist with regard to such condition. Any failure to give such written notice within such period will result in a waiver by you of your right to terminate for Good Reason as a result of such act or omission. Any termination hereunder shall occur no later than one hundred twenty (120) days after the Good Reason event occurs.

                    For purposes of this Agreement, “Cause” shall mean: (A) your conviction for a felony involving moral turpitude, dishonesty or laws to which the Company or its affiliates are subject in connection with the conduct of its or their business; (B) you, in carrying out your duties for the Company, have been guilty of (1) willful misconduct or (2) refusal by you to perform the duties assigned to you and the continuance of such refusal after receipt of written notice; or (C) your refusal to obey any lawful policy or requirement adopted by the Company and the continuance of such refusal after receipt of written notice.

EXHIBIT C
TAX-RELATED PROVISIONS

It is intended that this Agreement will comply with Section 409A of the Code (and any regulations and guidelines issued thereunder) to the extent the Agreement is subject thereto, and the Agreement shall be interpreted on a basis consistent with such intent. No action or failure to act, pursuant to this Exhibit C shall subject the Company to any claim, liability, or expense, and the Company shall not have any obligation to indemnify or otherwise protect you from the obligation to pay any taxes, interest or penalties pursuant to Section 409A of the Code. Without prejudice to the characterization of any other amounts payable under this Agreement, the parties hereto specifically intend that any amounts payable under paragraphs 1(a) and (b) and paragraphs 2(a) and (b) will not be considered deferred compensation for purposes of Section 409A due to Treas. Reg. Section 1.409A-1(b)(4) or another applicable exception. However, notwithstanding any provision to the contrary in this Agreement, if you are deemed on the date of your “separation from service” (within the meaning of Treas. Reg. Section 1.409A-1(h)) with the Company to be a “specified employee” (within the meaning of Treas. Reg. Section 1.409A-1(i)), then with regard to any payment or benefit that is considered deferred compensation under Section 409A payable on account of a “separation from service” that is required to be delayed pursuant to Section 409A(a)(2)(B) of the Code (after taking into account any applicable exceptions to such requirement), such payment or benefit shall be made or provided on the date that is the earlier of (i) the expiration of the six (6)-month period measured from the date of your “separation from service,” or (ii) the date of your death (the “Delay Period”). Upon the expiration of the Delay Period, all payments and benefits delayed pursuant to this Exhibit C (whether they would have otherwise been payable in a single sum or in installments in the absence of such delay) shall be paid or reimbursed to you in a lump sum and any remaining payments and benefits due under this Agreement shall be paid or provided in accordance with the normal payment dates specified for them herein. Notwithstanding any provision of this Agreement to the contrary, for purposes of any provision of this Agreement providing for the payment of any amounts or benefits upon or following a termination of employment, references to your “termination of employment” (and corollary terms) with the Company shall be construed to refer to your “separation from service” (within the meaning of Treas. Reg. Section 1.409A-1(h)) with the Company. Whenever payments under this Agreement are to be made in installments, each such installment shall be deemed to be a separate payment for purposes of Section 409A.

Anything in this Agreement to the contrary notwithstanding, all payments required to be made by the Company to you under the Agreement shall be subject to withholding of such amounts relating to taxes as the Company may reasonably determine should be withheld pursuant to any applicable law or regulation.

EXHIBIT D
NOTICE

Any notice required or permitted to be given under the Agreement shall be in writing and shall be deemed to have been duly given (a) on the date of delivery, if delivered by hand, (b) on the date of transmission, if delivered by confirmed facsimile or electronic mail, (c) on the first business day following the date of deposit, if delivered by guaranteed overnight delivery service, or (d) on the fourth business day following the date mailed by United States registered or certified mail, return receipt requested, postage prepaid, in any case addressed to the party concerned at the address indicated below or to such changed address as such party may subsequently by similar process give notice of:

If to the Company:
	XL Group
	Seaview House
	70 Seaview Avenue
	Stamford, CT 06902
	Attention: Daniel J. Losito, Associate General Counsel
	Fax: (203) 964-5309
If to you:
	To the last address, fax number or email address delivered to
	the Company by you in the manner set forth herein.

SCHEDULE I

As of June 30, 2012, the following Executive Officer was party to this Form of Letter of Agreement:

Eileen Whelley

EX-12

Exhibit 12

XL GROUP PLC
COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES AND RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERENCE DIVIDENDS

(U.S. Dollars in thousands, except ratios)

	Six Months Ended 30-June 2012			Six Months Ended 30-June 2011
Earnings:
Pre-tax (loss) income from continuing operations		427,838			(71,441	)
Fixed charges		141,923			149,643
Distributed income of equity investees		54,609			983
Subtotal		624,370			79,185
Less: Non-controlling interests		(12	)		(134	)
Preference share dividend		40,023			35,572
Total Earnings (Loss)		584,359			43,747
Fixed charges:
Interest costs		53,455			83,361
Accretion of deposit liabilities		43,203			25,885
Rental expense at 30% (1)		5,242			4,825
Total fixed charges		101,900			114,071
Preference share dividends		40,023			35,572
Total fixed charges and preference dividends		141,923			149,643
Ratio of earnings to fixed charges		5.7			0.4
Ratio of earnings to fixed charges & preference dividends		4.1			0.3
Deficiency - fixed charges only (2)		N/A			70,324
Deficiency - fixed charges and preference dividends (2)		N/A			105,896

Notes:
(1)	30% represents a reasonable approximation of the interest factor.
(2)	For the six months ended June 30, 2011, earnings were insufficient to cover fixed charges and fixed charges plus preference dividends by $70.3 million and $105.9 million, respectively.

EX-31

Exhibit 31

Certification of Chief Executive Officer
XL Group plc
Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
(Chapter 98, Title 15 U.S.C. 7241)

I, Michael S. McGavick, certify that:
1.	I have reviewed this Quarterly Report on Form 10-Q of XL Group plc;
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.	The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
	(a)	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
	(b)	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
	(c)	Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
	(d)	Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
5.	The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):
	(a)	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
	(b)	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Dated: August 8, 2012

/s/ MICHAEL S. MCGAVICK

Michael S. McGavick

Chief Executive Officer

93

Certification of Chief Financial Officer
XL Group plc
Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
(Chapter 98, Title 15 U.S.C. 7241)

I, Peter R. Porrino, certify that:
1.	I have reviewed this Quarterly Report on Form 10-Q of XL Group plc;
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.	The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
	(a)	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
	(b)	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
	(c)	Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
	(d)	Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
5.	The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):
	(a)	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
	(b)	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Dated: August 8, 2012

/s/ PETER R. PORRINO

Peter R. Porrino

Executive Vice President and

Chief Financial Officer

94

EX-32

Exhibit 32

Certification Accompanying Form 10-Q Report of XL Group plc
Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
(Chapter 63, Title 18 U.S.C. 1350(a) and (b))

          Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Chapter 63, Title 18 U.S.C. 1350(a) and (b)), each of the undersigned hereby certifies that, to his knowledge, the Quarterly Report on Form 10-Q for the period ended June 30, 2012 of XL Group plc (the “Company”) fully complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934 and that the information contained in such Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: August 8, 2012

/s/ MICHAEL S. MCGAVICK

MICHAEL S. McGAVICK

CHIEF EXECUTIVE OFFICER

XL GROUP PLC

Dated: August 8, 2012

/s/ PETER R. PORRINO

PETER R. PORRINO

EXECUTIVE VICE PRESIDENT,

CHIEF FINANCIAL OFFICER

XL GROUP PLC

          A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to XL Group plc and will be retained by XL Group plc and furnished to the Securities and Exchange Commission or its staff upon request.

95

XML

Investments (Details) - Contractual maturities of available for sale securities and held to maturity income securities (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
AFS securities
Due less than one year, amortized cost	$ 1,983,583	$ 2,004,395
Due less than one year, fair value	1,999,239	2,020,361
Due after 1 through 5 years, amortized cost	7,976,631	7,736,717
Due after 1 through 5 years, fair value	8,243,009	7,909,354
Due after 5 through 10 years, amortized cost	3,401,824	3,619,141
Due after 5 through 10 years, fair value	3,610,915	3,777,073
Due after 10 years, amortized cost	3,320,524	3,257,886
Due after 10 years, fair value	3,640,235	3,488,330
Subtotal - amortized cost	16,682,562	16,618,139
Subtotal - fair value	17,493,398	17,195,118
Mortgage and asset-backed securities - amortized cost	8,760,217	9,153,576
Mortgage and asset-backed securities - fair value	8,749,404	8,994,907
Amortized cost of Fixed maturities	25,442,779	25,771,715
Fixed maturities, at fair value	26,242,802	26,190,025
Fixed maturities - HTM
Due less than one year, amortized cost	30,847	11,796
Due less than one year, fair value	31,138	11,768
Due after 1 through 5 years, amortized cost	165,678	122,091
Due after 1 through 5 years, fair value	172,104	123,871
Due after 5 through 10 years, amortized cost	365,103	393,865
Due after 5 through 10 years, fair value	386,251	402,424
Due after 10 years, amortized cost	1,843,808	1,771,530
Due after 10 years, fair value	2,079,157	1,960,886
Subtotal - amortized cost	2,405,436	2,299,282
Subtotal - fair value	2,668,650	2,498,949
Mortage and asset-backed securities - amortized cost	310,921	369,696
Mortgage and asset-backed securities - fair value	338,342	396,739
Amortized Cost	2,716,357	2,668,978
Fair Value	3,006,992	2,895,688
RMBS - Agency
AFS securities
Mortgage and asset-backed securities - amortized cost	5,001,023	5,189,473
Mortgage and asset-backed securities - fair value	5,202,313	5,379,406
Amortized cost of Fixed maturities	5,001,023	5,189,473
Fixed maturities, at fair value	5,202,313	5,379,406
RMBS - Non-Agency
AFS securities
Mortgage and asset-backed securities - amortized cost	728,309	851,557
Mortgage and asset-backed securities - fair value	584,543	641,815
Amortized cost of Fixed maturities	728,309	851,557
Fixed maturities, at fair value	584,543	641,815
Fixed maturities - HTM
Mortage and asset-backed securities - amortized cost	81,028	80,955
Mortgage and asset-backed securities - fair value	87,090	87,443
Amortized Cost	81,028	80,955
Fair Value	87,090	87,443
CMBS
AFS securities
Mortgage and asset-backed securities - amortized cost	842,802	927,684
Mortgage and asset-backed securities - fair value	904,792	974,835
Amortized cost of Fixed maturities	842,802	927,684
Fixed maturities, at fair value	904,792	974,835
Fixed maturities - HTM
Mortage and asset-backed securities - amortized cost	12,546	0
Mortgage and asset-backed securities - fair value	14,213	0
Amortized Cost	12,546
Fair Value	14,213
CDO
AFS securities
Mortgage and asset-backed securities - amortized cost	796,018	843,553
Mortgage and asset-backed securities - fair value	650,018	658,602
Amortized cost of Fixed maturities	796,018	843,553
Fixed maturities, at fair value	650,018	658,602
Other asset-backed securities
AFS securities
Mortgage and asset-backed securities - amortized cost	1,392,065	1,341,309
Mortgage and asset-backed securities - fair value	1,407,738	1,340,249
Amortized cost of Fixed maturities	1,392,065	1,341,309
Fixed maturities, at fair value	1,407,738	1,340,249
Fixed maturities - HTM
Mortage and asset-backed securities - amortized cost	217,347	288,741
Mortgage and asset-backed securities - fair value	237,039	309,296
Amortized Cost	217,347	288,741
Fair Value	$ 237,039	$ 309,296

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Share Capital (Details) - Stock plans (USD $) In Millions, except Per Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
Stock options
Weighted average assumptions and option awards:
Dividend yield	1.90%
Risk free interest rate	1.16%
Volatility	46.00%
Expected lives	6 years
Options, grants in period (shares)	1.2
Weighted average grant date fair value (in Dollars per share)	$ 7.62
Restricted stock awards
Other details:
Granted (in Shares)	0.3
Aggregate grant date fair value	$ 6.8
Restricted stock units
Other details:
Granted (in Shares)	1.3
Aggregate grant date fair value	26.2
Vesting period required	3 years
Performance units
Other details:
Granted (in Shares)	1.5
Aggregate grant date fair value	$ 29.2
Vesting period required	3 years
Performance Units Maximum Potential Payout	3.0
Performance units | Minimum Member
Other details:
Performance Units Final Payout Percentage Of Grant Amount	0.00%
Performance units | Maximum
Other details:
Performance Units Final Payout Percentage Of Grant Amount	200.00%

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Derivative Instruments (Details) - Schedule of settlement of fair value hedges (USD $) In Thousands, unless otherwise specified	3 Months Ended		1 Months Ended	3 Months Ended
	Jun. 30, 2012 Notes Payable And Debt [Member] Fair Value Hedging Member	Jun. 30, 2011 Notes Payable And Debt [Member] Fair Value Hedging Member	Jul. 31, 2012 Deposit Liabilities [Member]	Jun. 30, 2012 Deposit Liabilities [Member] Fair Value Hedging Member	Jun. 30, 2011 Deposit Liabilities [Member] Fair Value Hedging Member
Derivative [Line Items]
Cumulative reduction to interest expense	$ 12,996	$ 7,432		$ 12,763	$ 5,646
Fair Value Hedge Remaining Balance	$ 8,628	$ 14,192		$ 136,722	$ 143,839
Weighted average years to maturity	2 years 2 months 12 days	2 years 10 months 24 days	16 years 1 month 6 days	32 years 4 months 24 days	35 years

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Notes Payable and Debt and Financing Arrangements (Details) - Narrative (USD $)	Jun. 30, 2012
Debt Instrument [Line Items]
Aggregated required statutory capital and surplus for principal operating subsidiaries	$ 6,700,000,000
March 2011 Credit Agreement [Member]
Debt Instrument [Line Items]
Line Of Credit Facility Optional Increased Capacity	500,000,000
December 2011 Credit Agreements [Member]
Debt Instrument [Line Items]
Line Of Credit Facility Optional Increased Capacity	500,000,000
Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument Repurchased Face Amount	$ 600,000,000
Debt Instrument Interest Rate Stated Percentage	6.50%

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Derivative Instruments (Details) - Gross amounts of derivative fair values contained in the consolidated balance sheet (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012		Dec. 31, 2011
Designated as Hedging Instrument [Member]
Derivatives Fair Value [Line Items]
Asset derivative notional amount	$ 2,088,759		$ 2,189,699
Asset derivative fair value	174,196	[1]	135,148	[1]
Liability derivative notional amount	724,842		457,892
Liability derivative fair value	(5,883)	[1]	(4,518)	[1]
Designated as Hedging Instrument [Member] | Interest Rate Contract [Member]
Derivatives Fair Value [Line Items]
Asset derivative notional amount	156,254	[2]	156,271	[2]
Asset derivative fair value	116,881	[1],[2]	109,761	[1],[2]
Liability derivative notional amount	0	[2]	0	[2]
Liability derivative fair value	0	[1],[2]	0	[1],[2]
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Derivatives Fair Value [Line Items]
Asset derivative notional amount	1,932,505		2,033,428
Asset derivative fair value	57,315	[1]	25,387	[1]
Liability derivative notional amount	724,842		457,892
Liability derivative fair value	(5,883)	[1]	(4,518)	[1]
Not Designated as Hedging Instrument [Member]
Derivatives Fair Value [Line Items]
Asset derivative notional amount	296,782		576,974
Asset derivative fair value	4,826	[1]	11,591	[1]
Liability derivative notional amount	610,817		1,063,914
Liability derivative fair value	(41,559)	[1]	(58,544)	[1]
Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Investment Related Derivatives [Member]
Derivatives Fair Value [Line Items]
Asset derivative notional amount	60,802		70,978
Asset derivative fair value	2,229	[1]	1,946	[1]
Liability derivative notional amount	32,642		55,033
Liability derivative fair value	(163)	[1]	(43)	[1]
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Investment Related Derivatives [Member]
Derivatives Fair Value [Line Items]
Asset derivative notional amount	27,223		232,422
Asset derivative fair value	255	[1]	3,759	[1]
Liability derivative notional amount	59,666		384,592
Liability derivative fair value	(754)	[1]	(11,737)	[1]
Not Designated as Hedging Instrument [Member] | Credit Exposure [Member] | Investment Related Derivatives [Member]
Derivatives Fair Value [Line Items]
Asset derivative notional amount	91,250		172,500
Asset derivative fair value	1,624	[1]	5,271	[1]
Liability derivative notional amount	374,013		449,513
Liability derivative fair value	(15,015)	[1]	(13,986)	[1]
Not Designated as Hedging Instrument [Member] | Credit Exposure [Member] | Financial Operations Derivatives [Member]
Derivatives Fair Value [Line Items]
Asset derivative notional amount	0	[2],[3]	0	[2],[3]
Asset derivative fair value	0	[1],[2],[3]	0	[1],[2],[3]
Liability derivative notional amount	58,668	[2],[3]	81,678	[2],[3]
Liability derivative fair value	(3,626)	[1],[2],[3]	(10,288)	[1],[2],[3]
Not Designated as Hedging Instrument [Member] | Financial Market Exposure [Member] | Investment Related Derivatives [Member]
Derivatives Fair Value [Line Items]
Asset derivative notional amount	43,578		23,874
Asset derivative fair value	718	[1]	615	[1]
Liability derivative notional amount	15,476		14,321
Liability derivative fair value	(597)	[1]	0	[1]
Not Designated as Hedging Instrument [Member] | Guaranteed Minimum Income Benefit Contract [Member] | Other Non Investment Derivatives [Member]
Derivatives Fair Value [Line Items]
Asset derivative notional amount	0		0
Asset derivative fair value	0	[1]	0	[1]
Liability derivative notional amount	70,352		78,777
Liability derivative fair value	(21,404)	[1]	(22,490)	[1]
Not Designated as Hedging Instrument [Member] | Modified Coinsurance Funds Withheld Contract [Member] | Other Non Investment Derivatives [Member]
Derivatives Fair Value [Line Items]
Asset derivative notional amount	73,929		77,200
Asset derivative fair value	0	[1]	0	[1]
Liability derivative notional amount	0		0
Liability derivative fair value	$ 0	[1]	$ 0	[1]

[1] Derivative instruments in an asset or liability position are included within Other assets or Other liabilities, respectively, in the balance sheet.

[2] The Company held net cash collateral related to these derivative positions that is included within Cash and cash equivalents and the corresponding liability to return the collateral has been offset against the derivative asset within the balance sheet as appropriate under the netting agreement.

[3] Financial operations derivatives represent interests in variable interest entities as described in Note 10, "Variable Interest Entities".

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Fair Value Measurements (Details) - Financial instruments not carried at fair value (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Fixed maturities, held to maturity	$ 2,716,357	$ 2,668,978
Other investments - structured transactions	314,000	323,700
Deposit Liabilities	1,600,595	1,608,108
Notes payable and debt	1,673,921	2,275,327
Carrying Value [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Fixed maturities, held to maturity	2,716,357	2,668,978
Other investments - structured transactions	314,015	323,705
Financial Assets	3,030,372	2,992,683
Deposit Liabilities	1,600,595	1,608,108
Notes payable and debt	1,673,921	2,275,327
Financial Liabilities	3,274,516	3,883,435
Fair Value [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Fixed maturities, held to maturity	3,006,992	2,895,668
Other investments - structured transactions	289,874	297,124
Financial Assets	3,296,866	3,192,792
Deposit Liabilities	1,876,742	1,809,812
Notes payable and debt	1,820,193	2,340,148
Financial Liabilities	$ 3,696,935	$ 4,149,960

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Related Party Transactions (Details) - Schedule of related party transactions activity (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 investment_companies	Jun. 30, 2011
Related Party Transaction [Line Items]
Reported net premiums written	$ 1,432,901	$ 1,398,253	$ 3,474,625	$ 3,202,207
Net losses and loss expenses incurred	826,355	823,584	1,680,420	2,032,449
Reported acquisition costs	218,937	215,099	443,088	403,589
Number of investment management companies			4
Reinsurance Contracts Arx Holding Corporation [Member]
Related Party Transaction [Line Items]
Reported net premiums written	10,549	8,713	26,196	22,772
Net losses and loss expenses incurred	7,862	5,570	15,823	13,261
Reported acquisition costs	$ 6,136	$ 5,218	$ 12,613	$ 11,067

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Notes Payable and Debt and Financing Arrangements (Tables)

6 Months Ended

Jun. 30, 2012

Debt Disclosure Abstract

Schedule of Line of Credit Facilities [Table Text Block]

Letter of Credit Summary:	June 30,		December 31,
(U.S. dollars in thousands except percentages)	2012 (1)		2011 (1)
Revolving credit facility (2)	$	1,000,000	$	1,000,000
Available letter of credit facilities - commitments (3)	$	4,000,000	$	4,000,000
Available letter of credit facilities - in use	$	1,728,948	$	1,871,192
Collateralized by certain assets of the Company's investment portfolio		93.2%		93.8%

_______________

(1)       At June 30, 2012 and December 31, 2011,there were five available letter of credit facilities.

(2)       At June 30, 2012 and December 31, 2011, the revolving credit facility was unutilized.

(3)       The Company has the option to increase the size of the March 2011 Credit Agreement by an additional $500 million and the size of the facilities under the December 2011 Credit Agreements by an additional $500 million across both such facilities.

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Derivative Instruments (Details) - Earnings relating to derivative instruments not formally designated as hedging instruments (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Derivative Instruments Gain Loss [Line Items]
Total derivatives not designated as hedging instruments	$ (2,106)	$ (9,993)	$ 1,035	$ (7,647)
Amount of gain (loss) recognized in income from ineffective portion of fair value hedges	(2,194)	(957)	(4,633)	264
Net realized and unrealized gains (losses) on derivative instruments	(4,300)	(10,950)	(3,598)	(7,383)
Investment Related Derivatives [Member]
Derivative Instruments Gain Loss [Line Items]
Interest rate exposure	(83)	(4,319)	617	(4,151)
Foreign exchange exposure	683	11,014	329	17,451
Credit exposure	6,323	(12,693)	2,624	(13,659)
Financial market exposure	(5,969)	(32)	(2,025)	837
Financial Operations Derivatives [Member]
Derivative Instruments Gain Loss [Line Items]
Credit exposure	0	124	143	306
Other Non Investment Derivatives [Member]
Derivative Instruments Gain Loss [Line Items]
Contingent capital facility	0	(2,053)	0	(4,083)
Guaranteed minimum income benefit contract	(929)	(1,130)	1,086	1,179
Modified coinsurance funds withheld contract	$ (2,131)	$ (904)	$ (1,739)	$ (5,527)

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Investments (Details) - Credit loss impairments on fixed income securities (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
OTTI related to credit losses recognized in earnings
Balance, beginning of period	$ 314,805	$ 330,170	$ 333,379	$ 426,372
Credit loss impairment recognized in the current period on securities not previously impaired	4,043	11,333	5,878	15,906
Credit loss impairments previously recognized on securities which matured, paid down, prepaid or were sold during the period	(40,797)	(38,316)	(59,737)	(164,027)
Credit loss impairments previously recognized on securities impaired to fair value during the period	0	0	(16,384)	0
Additional credit loss impairments recognized in the current period on securities previously impaired	21,952	13,339	36,882	38,798
Accretion of credit loss impairments previously recognized due to an increase in cash flows expected to be collected	(283)	(682)	(298)	(1,205)
Balance, end of period	$ 299,720	$ 315,844	$ 299,720	$ 315,844

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Investments (Details) - Narrative (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012 positions	Jun. 30, 2011	Jun. 30, 2012 positions	Jun. 30, 2011	Dec. 31, 2011
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Fixed maturities, at fair value	$ 26,242,802,000		$ 26,242,802,000		$ 26,190,025,000
Cost or Amortized cost of Fixed maturities	25,442,779,000		25,442,779,000		25,771,715,000
Fixed maturities, held to maturity	2,716,357,000		2,716,357,000		2,668,978,000
Held To Maturity Securities Fair Value	3,006,992,000		3,006,992,000		2,895,688,000
Fair value of securities - AFS	26,999,238,000		26,999,238,000		27,017,285,000
Available-for-sale Securities, Amortized Cost Basis	26,223,815,000		26,223,815,000		26,611,778,000
Percentage of fixed income portfolio invested in securities below investment grade	2.70%		2.70%		2.40%
Percentage of gross unrealized losses relating to securities below investment grade	34.20%		34.20%		31.40%
Percentage of HTM securities rated A or higher	97.30%		97.30%
Unrealized appreciation related to securities reclassified from AFS to HTM			131,500,000
Unamortized portion of appreciation related to securities reclassified	105,500,000		105,500,000		108,400,000
Pledged assets, amount	17,500,000,000		17,500,000,000		17,200,000,000
Unrealized losses on AFS portfolio	576,800,000		576,800,000
Total number of positions - AFS	7,156		7,156
AFS securities in unrealized loss position (number of positions)	1,308		1,308
Unrealized losses on HTM portfolio	12,500,000		12,500,000
Total number of positions - HTM	208		208
HTM securities in unrealized loss position (number of positions)	15		15
OTTI on investments, net of amounts transferred to other comprehensive income	28,193,000	27,176,000	49,158,000	64,621,000
Credit loss impairments previously recognized on securities which matured, paid down, prepaid or were sold during the period	40,797,000	38,316,000	59,737,000	164,027,000
Maximum
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Short term investments maturity horizon from reporting date			1 year
P&C
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Unrealized loss			55,200,000
Government Related Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Total fair value	2,066,000,000		2,066,000,000		1,915,600,000
Total cost or amortized cost	2,012,400,000		2,012,400,000		1,878,300,000
U.S. Agency Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Total fair value	500,500,000		500,500,000		541,200,000
Total cost or amortized cost	455,000,000		455,000,000		494,000,000
Other asset-backed securities
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Fixed maturities, at fair value	1,407,738,000		1,407,738,000		1,340,249,000
Cost or Amortized cost of Fixed maturities	1,392,065,000		1,392,065,000		1,341,309,000
Fixed maturities, held to maturity	217,347,000		217,347,000		288,741,000
Held To Maturity Securities Fair Value	237,039,000		237,039,000		309,296,000
Covered Bonds [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Fixed maturities, at fair value	500,500,000		500,500,000		353,900,000
Cost or Amortized cost of Fixed maturities	478,100,000		478,100,000		345,400,000
Fixed maturities, held to maturity	8,100,000		8,100,000		8,100,000
Held To Maturity Securities Fair Value	7,800,000		7,800,000		7,700,000
Unrealized losses on HTM portfolio	8,100,000		8,100,000		7,700,000
Corporate
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Fixed maturities, at fair value	9,721,153,000		9,721,153,000		10,108,622,000
Cost or Amortized cost of Fixed maturities	9,297,657,000		9,297,657,000		9,866,677,000
Fixed maturities, held to maturity	1,387,033,000		1,387,033,000		1,290,209,000
Held To Maturity Securities Fair Value	1,509,453,000		1,509,453,000		1,367,089,000
OTTI on investments, net of amounts transferred to other comprehensive income			2,200,000
Medium-term Notes [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Fixed maturities, at fair value	186,100,000		186,100,000		266,000,000
Cost or Amortized cost of Fixed maturities	199,100,000		199,100,000		297,700,000
OTTI on investments, net of amounts transferred to other comprehensive income			10,200,000
Medium-term Notes [Member] | P&C
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Unrealized loss			14,300,000
Tier One and Upper Tier Two Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Fixed maturities, at fair value	346,200,000		346,200,000		386,100,000
Cost or Amortized cost of Fixed maturities	420,300,000		420,300,000		494,900,000
Unrealized losses on AFS portfolio	74,700,000		74,700,000		108,800,000
Covered bonds in fixed maturities and short-term investments [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Unrealized losses on AFS portfolio	34,300,000		34,300,000		44,700,000
Equity Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
OTTI on investments, net of amounts transferred to other comprehensive income			1,500,000
Fixed Income Funds Member
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Fair value of securities - AFS	95,800,000		95,800,000		91,600,000
Available-for-sale Securities, Amortized Cost Basis	100,000,000		100,000,000		100,000,000
Structured Credit Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Total fair value	26,300,000		26,300,000
Cumulative fair value decline (as a percentage of amortized cost)			50.00%
OTTI on investments, net of amounts transferred to other comprehensive income			14,300,000
Structured Credit Securities [Member] | Change in intent
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
OTTI on investments, net of amounts transferred to other comprehensive income			0
Change of intent from sell to hold (number of positions)			0
RMBS - Non-Agency
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Fixed maturities, at fair value	584,543,000		584,543,000		641,815,000
Cost or Amortized cost of Fixed maturities	728,309,000		728,309,000		851,557,000
Fixed maturities, held to maturity	81,028,000		81,028,000		80,955,000
Held To Maturity Securities Fair Value	87,090,000		87,090,000		87,443,000
Credit loss impairments previously recognized on securities which matured, paid down, prepaid or were sold during the period	21,900,000	20,900,000	31,800,000	112,600,000
RMBS - Non-Agency | AFS
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Unrealized loss			32,700,000
CMBS
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Fixed maturities, at fair value	904,792,000		904,792,000		974,835,000
Cost or Amortized cost of Fixed maturities	842,802,000		842,802,000		927,684,000
Fixed maturities, held to maturity	12,546,000		12,546,000
Held To Maturity Securities Fair Value	14,213,000		14,213,000
Unrealized loss			800,000
Core CDO
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Unrealized loss			$ 21,700,000

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Derivative Instruments (Details) - Summary of contingent credit features (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2010
Derivatives Disclosure [Abstract]
Aggregate fair value of derivative agreements with downgrade provisions in a net liability position	$ 10,152	$ 15,763
Collateral posted to counterparty	$ 0	$ 809

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Derivative Instruments (Details) - Hedged items - amount of gain/(loss) recognized in income attributable to risk (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Derivative Instruments Gain Loss [Line Items]
Ineffective portion of hedging relationship - gain/(loss)	$ (2,194)	$ (957)	$ (4,633)	$ 264
Designated as Hedging Instrument [Member] | Fair Value Hedging Member | Net realized and unrealized gains (losses) on derivative instruments [Member]
Derivative Instruments Gain Loss [Line Items]
Gain/(loss) recognized in income on derivative	14,567	4,849	(5,990)	(16,451)
Designated as Hedging Instrument [Member] | Fair Value Hedging Member | Net realized and unrealized gains (losses) on derivative instruments [Member] | Deposit Liabilities [Member]
Derivative Instruments Gain Loss [Line Items]
Gain/(loss) recognized in income on derivative	(9,789)	(6,672)	(6,182)	(4,291)
Designated as Hedging Instrument [Member] | Fair Value Hedging Member | Net realized and unrealized gains (losses) on derivative instruments [Member] | Fixed Maturity Investments [Member]
Derivative Instruments Gain Loss [Line Items]
Gain/(loss) recognized in income on derivative	(6,972)	866	7,539	21,006
Designated as Hedging Instrument [Member] | Fair Value Hedging Member | Net realized and unrealized gains (losses) on derivative instruments [Member] | Interest Rate Exposure [Member] | Gain Loss Recognized In Income On Derivative [Member]
Derivative Instruments Gain Loss [Line Items]
Gain/(loss) recognized in income on derivative	7,270	5,726	1,813	4,852
Designated as Hedging Instrument [Member] | Fair Value Hedging Member | Net realized and unrealized gains (losses) on derivative instruments [Member] | Foreign Exchange Exposure [Member] | Gain Loss Recognized In Income On Derivative [Member]
Derivative Instruments Gain Loss [Line Items]
Gain/(loss) recognized in income on derivative	$ 7,297	$ (877)	$ (7,803)	$ (21,303)

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Significant Accounting Policies

6 Months Ended

Jun. 30, 2012

Accounting Policies Abstract

Recent accounting pronouncements

2. Significant Accounting Policies

Recent Accounting Pronouncements

In October 2010, the FASB issued an accounting standards update to address disparities in practice regarding the interpretation of which costs relating to the acquisition of new and renewal insurance contracts qualify for deferral. The provisions of the guidance specify that only costs that are related directly to the successful acquisition of new and renewal insurance contracts may be capitalized. These include incremental direct costs of contract acquisition and certain other costs related directly to underwriting activities. Incremental direct costs of contract acquisition are those that result directly from and are essential to a contract transaction, and would not have been incurred by the insurance entity had the transaction not occurred. Administrative costs, rent, depreciation, occupancy, equipment and all other general overhead costs are considered indirect costs and should be charged to expense as incurred. On January 1, 2012, the Company adopted this guidance on a retrospective basis for all fiscal years presented, and interim periods within those years.The impact of adoption was a reduction in deferred acquisition costs of approximately $21 million, a reduction in deferred tax liabilities of approximately $7 million, and a corresponding reduction in opening retained earnings of approximately $14 million within the Company's December 31, 2011 balance sheet. The adoption of this guidance did not have an impact on the Company's consolidated statements of income or comprehensive income.

In May 2011, the FASB issued an accounting standards update to amend existing requirements for fair value measurements and disclosures. The guidance expands the disclosure requirements around fair value measurements categorized in Level 3 of the fair value hierarchy, requiring quantitative and qualitative information to be disclosed related to: (1) the valuation processes used, (2) the sensitivity of the fair value measurement to changes in unobservable inputs and the interrelationships between those unobservable inputs, and (3) use of a nonfinancial asset in a way that differs from the asset's highest and best use. The guidance requires disclosure of the level in the fair value hierarchy of items that are not measured at fair value, but whose fair value must be disclosed. It also clarifies and expands upon existing requirements for fair value measurements of financial assets and liabilities, as well as instruments classified in shareholders' equity. The Company has adopted this guidance from January 1, 2012; however, it impacted disclosure only and did not have an impact on the Company's financial condition or results of operations.See Note 3,“Fair Value Measurements,” for these updated disclosures.

 In June 2011, the FASB issued an accounting standards update concerning the presentation of comprehensive income in financial statements. This guidance allows an entity the option to present the total of comprehensive income, the components of net income, and the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements. Under both options, an entity is required to present each component of net income along with total net income, each component of other comprehensive income along with a total for other comprehensive income, and a total amount for comprehensive income. This guidance eliminates the option to present the components of other comprehensive income only as part of the statement of changes in shareholders' equity. The guidance does not change the items that must be reported in other comprehensive income or when an item of other comprehensive income must be reclassified to net income. However, a separate accounting standards update issued in December 2011deferred indefinitely a provision within the original standardrequiring entities to present components of reclassifications of other comprehensive income on the face of the income statement. The Company adopted the guidance from January 1, 2012;however, it did not have an impacton the Company's disclosure, financial condition or results of operations.

In September 2011, the FASB issued an accounting standards update to simplify how entities test goodwill for impairment, by allowing an entity the option to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting entity is less than its carrying amount, as a basis for determining whether it is necessary to perform the two-step goodwill impairment test required in FASB Accounting Standards Codification Topic 350. After assessing the circumstances that should be considered in making the qualitative assessment, if an entity determines that the fair value of a reporting unit as compared to its carrying value meets the threshold, then performing the two-step impairment step is unnecessary. In other circumstances, performance of the two-step test is required. The guidance also eliminates the option for an entity to carry forward its detailed calculation of a reporting unit's fair value in certain situations. The amendments do not change the current guidance for testing other indefinite-lived intangible assets for impairment. The Company adopted this guidance from January 1, 2012. It did not have an impact on the Company's consolidated financial condition or results of operations.

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Investments (Details) - Structured transactions - project finance loans (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2012 loans	Dec. 31, 2011 loans
Project Finance Loans:
Aggregate loan value	$ 36,536	$ 49,650
Aggregate loan net carrying amount	30,953	40,483
Allowance for loan losses rollforward:
Opening allowance for loan losses	9,167	9,167
Amounts charged off during the period	3,584	0
Closing allowance for loan losses	$ 5,583	$ 9,167
Other details:
Number of individual loan participations	4	6
Number of individual loan participations relating to the allowance for loan losses	1	2
Weighted average contractual term to maturity	1 year 1 month 6 days	2 years 1 month 6 days
Weighted average credit rating	BB	BB-
Range of individual credit ratings	BB+ to BB-	BB+ to CCC

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Significant Accounting Policies (Details) (Accounting Standards Update 2010-26 [Member], USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
Accounting Standards Update 2010-26 [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Deferred tax liability, cumulative adjustment effect	$ 21.0
Deferred acquisition costs, cumulative adjustment effect	7.0
Net assets, cumulative adjustment effect	$ 14.0

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Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2012

Commitments And Contingencies Disclosure Abstract

Summary Of Financial And Other Guarantee Exposures [Table Text Block]

Financial Guarantee Exposure Summary	June 30,		December 31,
(U.S. dollars in thousands except number of contracts and term to maturity)	2012		2011
Opening number of financial guarantee contracts		4		37
Number of financial guarantee contracts matured, prepaid or commuted during the period		-		(33)
Closing number of financial guarantee contracts		4		4
Principal outstanding	$	115,464	$	115,464
Interest outstanding	$	-	$	-
Aggregate exposure outstanding	$	115,464	$	115,464
Total gross claim liability recorded	$	1,399	$	1,399
Total unearned premiums and fees recorded	$	352	$	425
Weighted average contractual term to maturity in years		25.9		26.7

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Notes Payable and Debt and Financing Arrangements (Details) - Letter of credit summary (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Line of Credit Facility [Line Items]
Available letter of credit facilities - in use	$ 1,728,948	$ 1,871,192
Collateralized by certain assets of the Company's investment portfolio	93.20%	93.80%
Letter of Credit [Member]
Line of Credit Facility [Line Items]
Available credit facilities - commitments	4,000,000	4,000,000
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Available credit facilities - commitments	$ 1,000,000	$ 1,000,000

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Investments (Details) - Investment Fund Consolidation (USD $)	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2011	Dec. 31, 2010
Investment Fund Consolidation [Line Items]
Fixed maturities, at fair value	$ 26,242,802,000	$ 26,190,025,000
Cost or Amortized cost of Fixed maturities	25,442,779,000	25,771,715,000
Cash and cash equivalents	3,311,146,000	3,825,125,000	2,859,342,000	3,022,868,000
Other liabilities	793,940,000	770,945,000
Non-controlling interest in equity of consolidated subsidiaries	1,345,993,000	1,344,472,000
Five Oaks Investment Corp [Member]
Investment Fund Consolidation [Line Items]
Investment amount	25,000,000
Percentage ownership	94.00%
Cash and cash equivalents	14,900,000
Other liabilities	69,100,000
Non-controlling interest in equity of consolidated subsidiaries	1,500,000
Securities pledged as collateral	75,600,000
Five Oaks Investment Corp [Member] | Maximum
Investment Fund Consolidation [Line Items]
Investment Fund Maximum Leverage Permitted	79,500,000
Five Oaks Investment Corp [Member] | Residential Mortgage Backed Securities Member
Investment Fund Consolidation [Line Items]
Fixed maturities, at fair value	80,700,000
Cost or Amortized cost of Fixed maturities	$ 80,600,000

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Fair Value Measurements (Details) - Narrative (USD $)	6 Months Ended	12 Months Ended
	Jun. 30, 2012	Dec. 31, 2011
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Available for sale fixed income securities, Fair Value	$ 26,242,802,000	$ 26,190,025,000
Available for sale fixed income securities, Amortized Cost	25,442,779,000	25,771,715,000
Fair value of securities - AFS	26,999,238,000	27,017,285,000
Available-for-sale Securities, Amortized Cost Basis	26,223,815,000	26,611,778,000
Derivative, Collateral, Obligation to Return Cash	124,700,000	77,100,000
Other investments - structured transactions	314,000,000	323,700,000
Spread on US Treasury rate for determining discount rate for fair value of deposit liabilities	1.397%	1.618%
Corporate [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Available for sale fixed income securities, Fair Value	9,721,153,000	10,108,622,000
Available for sale fixed income securities, Amortized Cost	9,297,657,000	9,866,677,000
Medium-term Notes [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Available for sale fixed income securities, Fair Value	186,100,000	266,000,000
Available for sale fixed income securities, Amortized Cost	199,100,000	297,700,000
Other Asset Backed Securities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Available for sale fixed income securities, Fair Value	1,407,738,000	1,340,249,000
Available for sale fixed income securities, Amortized Cost	1,392,065,000	1,341,309,000
Covered Bonds [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Available for sale fixed income securities, Fair Value	500,500,000	353,900,000
Available for sale fixed income securities, Amortized Cost	478,100,000	345,400,000
Fixed Income Funds Member
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of securities - AFS	95,800,000	91,600,000
Available-for-sale Securities, Amortized Cost Basis	$ 100,000,000	$ 100,000,000

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Fair Value Measurements (Details) - Schedule of assets and liabilities that were accounted for at fair value (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012		Dec. 31, 2011
ASSETS
Fixed maturities, at fair value	$ 26,242,802		$ 26,190,025
Equity securities, at fair value	529,056		468,197
Short-term investments, at fair value	227,380		359,063
Total investments available for sale	26,999,238		27,017,285
U.S. Government and Government - Related/Supported [Member]
ASSETS
Fixed maturities, at fair value	2,101,625		1,990,983
Corporate [Member]
ASSETS
Fixed maturities, at fair value	9,721,153		10,108,622
Residential mortgage-backed securities - Agency ("RMBS - Agency") [Member]
ASSETS
Fixed maturities, at fair value	5,202,313		5,379,406
Residential mortgage-backed securities - Non-Agency ("RMBS - Non-Agency") [Member]
ASSETS
Fixed maturities, at fair value	584,543		641,815
Commercial Mortgage Backed Securities [Member]
ASSETS
Fixed maturities, at fair value	904,792		974,835
Collateralized Debt Obligations [Member]
ASSETS
Fixed maturities, at fair value	650,018		658,602
Other Asset Backed Securities [Member]
ASSETS
Fixed maturities, at fair value	1,407,738		1,340,249
U.S. States and political subdivisions of the States [Member]
ASSETS
Fixed maturities, at fair value	1,764,431		1,797,378
Non US Sovereign Government Supranational And Government Related [Member]
ASSETS
Fixed maturities, at fair value	3,906,189		3,298,135
Fair Value Measurements Recurring Member
ASSETS
Fixed maturities, at fair value	26,242,802		26,190,025	[1]
Equity securities, at fair value	529,056	[2]	468,197	[2]
Short-term investments, at fair value	227,380	[3],[4]	359,063	[3],[4]
Total investments available for sale	26,999,238		27,017,285
Cash equivalents	2,461,281	[5]	2,754,365	[5]
Other investments	894,203	[6]	661,557	[6]
Other assets	53,430	[7]	65,734	[7]
Total assets accounted for at fair value	30,408,152		30,498,941
Liabilities:
Financial instruments sold, but not yet purchased	28,198	[8]	20,844	[8]
Other liabilities	46,525	[7]	58,706	[7]
Total liabilities accounted for at fair value	74,723		79,550
Fair Value Measurements Recurring Member | U.S. Government and Government - Related/Supported [Member]
ASSETS
Fixed maturities, at fair value	2,101,625		1,990,983
Fair Value Measurements Recurring Member | Corporate [Member]
ASSETS
Fixed maturities, at fair value	9,721,153	[1],[3]	10,108,622	[1],[3]
Fair Value Measurements Recurring Member | Residential mortgage-backed securities - Agency ("RMBS - Agency") [Member]
ASSETS
Fixed maturities, at fair value	5,202,313		5,379,406
Fair Value Measurements Recurring Member | Residential mortgage-backed securities - Non-Agency ("RMBS - Non-Agency") [Member]
ASSETS
Fixed maturities, at fair value	584,543		641,815
Fair Value Measurements Recurring Member | Commercial Mortgage Backed Securities [Member]
ASSETS
Fixed maturities, at fair value	904,792		974,835
Fair Value Measurements Recurring Member | Collateralized Debt Obligations [Member]
ASSETS
Fixed maturities, at fair value	650,018		658,602
Fair Value Measurements Recurring Member | Other Asset Backed Securities [Member]
ASSETS
Fixed maturities, at fair value	1,407,738	[1]	1,340,249	[1]
Fair Value Measurements Recurring Member | U.S. States and political subdivisions of the States [Member]
ASSETS
Fixed maturities, at fair value	1,764,431		1,797,378
Fair Value Measurements Recurring Member | Non US Sovereign Government Supranational And Government Related [Member]
ASSETS
Fixed maturities, at fair value	3,906,189		3,298,135
Fair Value Measurements Recurring Member | Quoted prices in active markets for identical assets (Level 1)
ASSETS
Fixed maturities, at fair value	0		0	[1]
Equity securities, at fair value	273,427	[2]	239,175	[2]
Short-term investments, at fair value	0	[3],[4]	0	[3],[4]
Total investments available for sale	273,427		239,175
Cash equivalents	1,750,569	[5]	1,686,101	[5]
Other investments	0	[6]	0	[6]
Other assets	0	[7]	0	[7]
Total assets accounted for at fair value	2,023,996		1,925,276
Liabilities:
Financial instruments sold, but not yet purchased	0	[8]	0	[8]
Other liabilities	0	[7]	0	[7]
Total liabilities accounted for at fair value	0		0
Fair Value Measurements Recurring Member | Quoted prices in active markets for identical assets (Level 1) | U.S. Government and Government - Related/Supported [Member]
ASSETS
Fixed maturities, at fair value	0		0
Fair Value Measurements Recurring Member | Quoted prices in active markets for identical assets (Level 1) | Corporate [Member]
ASSETS
Fixed maturities, at fair value	0	[1],[3]	0	[1],[3]
Fair Value Measurements Recurring Member | Quoted prices in active markets for identical assets (Level 1) | Residential mortgage-backed securities - Agency ("RMBS - Agency") [Member]
ASSETS
Fixed maturities, at fair value	0		0
Fair Value Measurements Recurring Member | Quoted prices in active markets for identical assets (Level 1) | Residential mortgage-backed securities - Non-Agency ("RMBS - Non-Agency") [Member]
ASSETS
Fixed maturities, at fair value	0		0
Fair Value Measurements Recurring Member | Quoted prices in active markets for identical assets (Level 1) | Commercial Mortgage Backed Securities [Member]
ASSETS
Fixed maturities, at fair value	0		0
Fair Value Measurements Recurring Member | Quoted prices in active markets for identical assets (Level 1) | Collateralized Debt Obligations [Member]
ASSETS
Fixed maturities, at fair value	0		0
Fair Value Measurements Recurring Member | Quoted prices in active markets for identical assets (Level 1) | Other Asset Backed Securities [Member]
ASSETS
Fixed maturities, at fair value	0	[1]	0	[1]
Fair Value Measurements Recurring Member | Quoted prices in active markets for identical assets (Level 1) | U.S. States and political subdivisions of the States [Member]
ASSETS
Fixed maturities, at fair value	0		0
Fair Value Measurements Recurring Member | Quoted prices in active markets for identical assets (Level 1) | Non US Sovereign Government Supranational And Government Related [Member]
ASSETS
Fixed maturities, at fair value	0		0
Fair Value Measurements Recurring Member | Significant other observable inputs (Level 2)
ASSETS
Fixed maturities, at fair value	25,487,680		25,466,763	[1]
Equity securities, at fair value	255,629	[2]	229,022	[2]
Short-term investments, at fair value	227,380	[3],[4]	359,063	[3],[4]
Total investments available for sale	25,970,689		26,054,848
Cash equivalents	710,712	[5]	1,068,264	[5]
Other investments	776,438	[6]	547,598	[6]
Other assets	178,104	[7]	143,622	[7]
Total assets accounted for at fair value	27,635,943		27,814,332
Liabilities:
Financial instruments sold, but not yet purchased	28,198	[8]	20,844	[8]
Other liabilities	10,578	[7]	16,871	[7]
Total liabilities accounted for at fair value	38,776		37,715
Fair Value Measurements Recurring Member | Significant other observable inputs (Level 2) | U.S. Government and Government - Related/Supported [Member]
ASSETS
Fixed maturities, at fair value	2,101,625		1,990,983
Fair Value Measurements Recurring Member | Significant other observable inputs (Level 2) | Corporate [Member]
ASSETS
Fixed maturities, at fair value	9,687,642	[1],[3]	10,084,804	[1],[3]
Fair Value Measurements Recurring Member | Significant other observable inputs (Level 2) | Residential mortgage-backed securities - Agency ("RMBS - Agency") [Member]
ASSETS
Fixed maturities, at fair value	5,149,725		5,347,365
Fair Value Measurements Recurring Member | Significant other observable inputs (Level 2) | Residential mortgage-backed securities - Non-Agency ("RMBS - Non-Agency") [Member]
ASSETS
Fixed maturities, at fair value	582,947		641,815
Fair Value Measurements Recurring Member | Significant other observable inputs (Level 2) | Commercial Mortgage Backed Securities [Member]
ASSETS
Fixed maturities, at fair value	904,792		974,835
Fair Value Measurements Recurring Member | Significant other observable inputs (Level 2) | Collateralized Debt Obligations [Member]
ASSETS
Fixed maturities, at fair value	7,839		7,751
Fair Value Measurements Recurring Member | Significant other observable inputs (Level 2) | Other Asset Backed Securities [Member]
ASSETS
Fixed maturities, at fair value	1,382,490	[1]	1,323,697	[1]
Fair Value Measurements Recurring Member | Significant other observable inputs (Level 2) | U.S. States and political subdivisions of the States [Member]
ASSETS
Fixed maturities, at fair value	1,764,431		1,797,378
Fair Value Measurements Recurring Member | Significant other observable inputs (Level 2) | Non US Sovereign Government Supranational And Government Related [Member]
ASSETS
Fixed maturities, at fair value	3,906,189		3,298,135
Fair Value Measurements Recurring Member | Significant other unobservable inputs (Level 3)
ASSETS
Fixed maturities, at fair value	755,122		723,262	[1]
Equity securities, at fair value	0	[2]	0	[2]
Short-term investments, at fair value	0	[3],[4]	0	[3],[4]
Total investments available for sale	755,122		723,262
Cash equivalents	0	[5]	0	[5]
Other investments	117,765	[6]	113,959	[6]
Other assets	0	[7]	0	[7]
Total assets accounted for at fair value	872,887		837,221
Liabilities:
Financial instruments sold, but not yet purchased	0	[8]	0	[8]
Other liabilities	35,947	[7]	42,644	[7]
Total liabilities accounted for at fair value	35,947		42,644
Fair Value Measurements Recurring Member | Significant other unobservable inputs (Level 3) | U.S. Government and Government - Related/Supported [Member]
ASSETS
Fixed maturities, at fair value	0		0
Fair Value Measurements Recurring Member | Significant other unobservable inputs (Level 3) | Corporate [Member]
ASSETS
Fixed maturities, at fair value	33,511	[1],[3]	23,818	[1],[3]
Fair Value Measurements Recurring Member | Significant other unobservable inputs (Level 3) | Residential mortgage-backed securities - Agency ("RMBS - Agency") [Member]
ASSETS
Fixed maturities, at fair value	52,588		32,041
Fair Value Measurements Recurring Member | Significant other unobservable inputs (Level 3) | Residential mortgage-backed securities - Non-Agency ("RMBS - Non-Agency") [Member]
ASSETS
Fixed maturities, at fair value	1,596		0
Fair Value Measurements Recurring Member | Significant other unobservable inputs (Level 3) | Commercial Mortgage Backed Securities [Member]
ASSETS
Fixed maturities, at fair value	0		0
Fair Value Measurements Recurring Member | Significant other unobservable inputs (Level 3) | Collateralized Debt Obligations [Member]
ASSETS
Fixed maturities, at fair value	642,179		650,851
Fair Value Measurements Recurring Member | Significant other unobservable inputs (Level 3) | Other Asset Backed Securities [Member]
ASSETS
Fixed maturities, at fair value	25,248	[1]	16,552	[1]
Fair Value Measurements Recurring Member | Significant other unobservable inputs (Level 3) | U.S. States and political subdivisions of the States [Member]
ASSETS
Fixed maturities, at fair value	0		0
Fair Value Measurements Recurring Member | Significant other unobservable inputs (Level 3) | Non US Sovereign Government Supranational And Government Related [Member]
ASSETS
Fixed maturities, at fair value	0		0
Fair Value Measurements Recurring Member | Collateral and counterparty netting
ASSETS
Other assets	(124,674)	[7]	(77,888)	[7]
Total assets accounted for at fair value	(124,674)		(77,888)
Liabilities:
Other liabilities	0	[7]	(809)	[7]
Total liabilities accounted for at fair value	$ 0		$ (809)

[1] The Company invests in covered bonds issued by financial institutions ("Covered Bonds"). Covered Bonds are senior secured debt instruments issued by financial institutions and backed by over-collateralized pools of public sector or mortgage loans. Covered Bonds are included within Other asset-backed securities to align the Company's classification to market indices.

[2] Certain investments in fixed income funds are included within equity securities.

[3] Included within Corporate are certain medium term notes supported primarily by pools of European investment grade credit with varying degrees of leverage.

[4] Short-term investments consist primarily of Corporate securities and U.S. Government and Government-Related/Supported securities.

[5] Cash equivalents balances subject to fair value measurement include certificates of deposit and money market funds. Operating cash balances are not subject to fair value measurement guidance.

[6] The Other investments balance excludes certain structured transactions including certain investments in project finance transactions, a payment obligation and liquidity financing provided to a structured credit vehicle as part of a third party medium term note facility. These investments are carried at amortized cost.

[7] Other assets and other liabilities include derivative instruments. The derivative balances included in each category above are reported on a gross basis by level with a netting adjustment presented separately in the "Collateral and Counterpary Netting" column. The Company often enters into different types of derivative contracts with a single counterparty and these contracts are covered under a netting agreement.. Net cash collateral related to derivative positions is included within cash and cash equivalents and the corresponding liability to return the collateral has been offset against the derivative positions within the balance sheet as appropriate under the netting agreement. The fair values of the individual derivative contracts are reported gross in their respective levels based on the fair value hierarchy.

[8] Financial instruments sold, but not yet purchased, represent "short sales" and are included within "Payable for investments purchased" on the balance sheet.

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Basis of Preparation and Consolidation

6 Months Ended

Jun. 30, 2012

Organization Consolidation And Presentation Of Financial Statements Abstract

Basis of preparation and consolidation

1. Basis of Preparation and Consolidation

Unless the context otherwise indicates, references herein to the “Company” include XL Group plc and its consolidated subsidiaries.

These unaudited consolidated financial statements include the accounts of the Company and all of its subsidiaries and have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and disclosures required by GAAP for complete financial statements. In addition, the year-end balance sheet data were derived from audited financial statements but do not include all disclosures required by GAAP. In the opinion of management, these unaudited financial statements reflect all adjustments (consisting of normal recurring accruals) considered necessary for a fair statement of financial position and results of operations at the end of and for the periods presented. The results of operations for any interim period are not necessarily indicative of the results for a full year. All inter-company accounts and transactions have been eliminated. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from these estimates.

To facilitate period-to-period comparisons, certain reclassifications have been made to prior period consolidated financial statement amounts to conform to current period presentation.

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Fair Value Measurements (Details) - Additional information about assets and liabilities measured at fair value on a recurring basis (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Derivative Financial Instruments Liabilities Member
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation Calculation Roll Forward
Balance, beginning of period	$ 40,630	$ 36,810	$ 42,644	$ 39,195
Realized gains (losses)			0
Movement in unrealized gains (losses)	(4,683)	12,725	(6,697)	10,276
Purchases and issuances		(110)	0
Sales and settlements			0	174
Transfers into Level 3			0
Transfers out of Level 3			0
Balance, end of period	35,947	49,645	35,947	49,645
Movement in total gains (losses) above relating to instruments still held at the reporting date	4,683	(12,725)	6,697	(10,276)
Corporate
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation Calculation Roll Forward
Balance, beginning of period	33,305	34,885	23,818	36,866
Realized gains (losses)	82	(247)	(42)	(279)
Movement in unrealized gains (losses)	94	353	1,255	195
Purchases and issuances	0	0	8,734	6,877
Sales and settlements	(213)	(7,567)	(1,608)	(10,049)
Transfers into Level 3	536	0	1,354	0
Transfers out of Level 3	(293)	(22,638)	0	(28,824)
Fixed maturities to short term investments classification change			0
Balance, end of period	33,511	4,786	33,511	4,786
Movement in total gains (losses) above relating to instruments still held at the reporting date	94	71	1,255	6
RMBS - Agency
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation Calculation Roll Forward
Balance, beginning of period	39,795	32,987	32,041	30,255
Realized gains (losses)	(30)	0	(96)	0
Movement in unrealized gains (losses)	195	61	(95)	(50)
Purchases and issuances	35	0	70	0
Sales and settlements	(4,345)	(165)	(3,211)	(286)
Transfers into Level 3	16,938	11,276	23,879	0
Transfers out of Level 3		(28,774)	0	(14,534)
Fixed maturities to short term investments classification change			0
Balance, end of period	52,588	15,385	52,588	15,385
Movement in total gains (losses) above relating to instruments still held at the reporting date	197	61	(95)	(50)
RMBS - Non-Agency
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation Calculation Roll Forward
Balance, beginning of period		3,335	0	4,964
Realized gains (losses)		0	0	0
Movement in unrealized gains (losses)		(22)	0	(16)
Purchases and issuances		0	0	0
Sales and settlements		(119)	0	(374)
Transfers into Level 3	1,596	0	1,596	0
Transfers out of Level 3		0	0	(1,380)
Fixed maturities to short term investments classification change			0
Balance, end of period	1,596	3,194	1,596	3,194
Movement in total gains (losses) above relating to instruments still held at the reporting date		(22)	0	(16)
CMBS
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation Calculation Roll Forward
Balance, beginning of period		1,757	0	1,623
Realized gains (losses)		207	0	(678)
Movement in unrealized gains (losses)		(527)	0	514
Purchases and issuances		3,155	0	3,155
Sales and settlements		(29)	0	(51)
Transfers into Level 3		0	0	0
Transfers out of Level 3		0	0	0
Fixed maturities to short term investments classification change			0
Balance, end of period	0	4,563	0	4,563
Movement in total gains (losses) above relating to instruments still held at the reporting date		(320)	0	(152)
CDO
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation Calculation Roll Forward
Balance, beginning of period	638,697	742,551	650,851	721,572
Realized gains (losses)	57	(419)	(1,612)	(1,071)
Movement in unrealized gains (losses)	6,186	9,633	39,379	36,417
Purchases and issuances	0	2,379	0	2,379
Sales and settlements	(1,488)	(29,530)	(44,835)	(33,944)
Transfers into Level 3	0	2,625	0	1,886
Transfers out of Level 3	(1,273)	0	(1,604)	0
Fixed maturities to short term investments classification change			0
Balance, end of period	642,179	727,239	642,179	727,239
Movement in total gains (losses) above relating to instruments still held at the reporting date	6,186	8,419	35,379	33,777
Other asset-backed securities
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation Calculation Roll Forward
Balance, beginning of period	16,410	12,371	16,552	24,650
Realized gains (losses)	(135)	161	(94)	(317)
Movement in unrealized gains (losses)	4,145	4,688	3,905	6,860
Purchases and issuances	0	0	0	0
Sales and settlements	(844)	(172)	(1,118)	(9,114)
Transfers into Level 3	5,672	0	6,003	0
Transfers out of Level 3		0	0	(5,031)
Fixed maturities to short term investments classification change			0
Balance, end of period	25,248	17,048	25,248	17,048
Movement in total gains (losses) above relating to instruments still held at the reporting date	3,918	4,878	3,681	6,193
Non U.S. sovereign government, supranational, and government related
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation Calculation Roll Forward
Balance, beginning of period		0	0	3,667
Realized gains (losses)		0	0	0
Movement in unrealized gains (losses)		0	0	0
Purchases and issuances		0	0	0
Sales and settlements		0	0	0
Transfers into Level 3		0	0	0
Transfers out of Level 3		0	0	(3,667)
Fixed maturities to short term investments classification change			0
Balance, end of period	0	0	0	0
Movement in total gains (losses) above relating to instruments still held at the reporting date		0	0	0
Short-term investments
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation Calculation Roll Forward
Balance, beginning of period			0	0
Realized gains (losses)			0	0
Movement in unrealized gains (losses)			0	0
Purchases and issuances			0	0
Sales and settlements			0	0
Transfers into Level 3			0	0
Transfers out of Level 3			0	0
Fixed maturities to short term investments classification change			0
Balance, end of period	0	0	0	0
Movement in total gains (losses) above relating to instruments still held at the reporting date			0	0
Other investments
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation Calculation Roll Forward
Balance, beginning of period	115,659	144,834	113,959	133,717
Realized gains (losses)	510	12,155	2,438	12,155
Movement in unrealized gains (losses)	3,616	(1,982)	4,521	7,492
Purchases and issuances	2,365	6,254	3,682	8,115
Sales and settlements	(4,080)	(46,421)	(6,520)	(46,939)
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	(305)	(300)	(315)	0
Fixed maturities to short term investments classification change			0
Balance, end of period	117,765	114,540	117,765	114,540
Movement in total gains (losses) above relating to instruments still held at the reporting date	$ 1,326	$ 9,285	$ 1,004	$ 17,337

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Investments (Details) - Analysis of continual unrealized loss position (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
HTM securities
Less than 12 months Fair Value	$ 57,559	$ 244,193
Less than 12 month Gross Unrealized Losses	(924)	(9,322)
Equal to or greater than 12 months Fair Value	58,342	81,779
Equal to or greater than 12 months Gross Unrealized Losses	(11,576)	(11,413)
Fixed Maturities And Short Term Investments Available For Sale [Member]
Fixed maturities and short-term investments - AFS:
Less than 12 months Fair Value	1,295,169	2,375,175
Less than 12 month Gross Unrealized Losses	(26,298)	(88,253)
Equal to or greater than 12 months Fair Value	2,368,776	2,782,909
Equal to or greater than 12 months Gross Unrealized Losses	(522,669)	(688,309)
U.S. Government and Government - Related/Supported [Member]
Fixed maturities and short-term investments - AFS:
Less than 12 months Fair Value	311,939	289,260
Less than 12 month Gross Unrealized Losses	(1,902)	(332)
Equal to or greater than 12 months Fair Value	10,518	43,622
Equal to or greater than 12 months Gross Unrealized Losses	(1,014)	(3,984)
Corporate
Fixed maturities and short-term investments - AFS:
Less than 12 months Fair Value	422,004	1,078,664
Less than 12 month Gross Unrealized Losses	(12,834)	(42,151)
Equal to or greater than 12 months Fair Value	903,366	1,185,535
Equal to or greater than 12 months Gross Unrealized Losses	(160,988)	(243,683)
HTM securities
Less than 12 months Fair Value	23,418	147,836
Less than 12 month Gross Unrealized Losses	(374)	(7,770)
Equal to or greater than 12 months Fair Value	49,617	62,343
Equal to or greater than 12 months Gross Unrealized Losses	(8,473)	(6,663)
RMBS - Agency
Fixed maturities and short-term investments - AFS:
Less than 12 months Fair Value	100,286	310,318
Less than 12 month Gross Unrealized Losses	(1,496)	(849)
Equal to or greater than 12 months Fair Value	14,405	36,960
Equal to or greater than 12 months Gross Unrealized Losses	(980)	(3,000)
RMBS - Non-Agency
Fixed maturities and short-term investments - AFS:
Less than 12 months Fair Value	29,190	106,294
Less than 12 month Gross Unrealized Losses	(1,745)	(31,714)
Equal to or greater than 12 months Fair Value	462,704	449,138
Equal to or greater than 12 months Gross Unrealized Losses	(163,843)	(197,695)
HTM securities
Less than 12 months Fair Value	4,996	9,372
Less than 12 month Gross Unrealized Losses	(15)	(32)
Equal to or greater than 12 months Fair Value	0	0
Equal to or greater than 12 months Gross Unrealized Losses	0	0
CMBS
Fixed maturities and short-term investments - AFS:
Less than 12 months Fair Value	13,945	69,109
Less than 12 month Gross Unrealized Losses	(281)	(2,716)
Equal to or greater than 12 months Fair Value	30,996	39,444
Equal to or greater than 12 months Gross Unrealized Losses	(3,787)	(6,837)
CDO
Fixed maturities and short-term investments - AFS:
Less than 12 months Fair Value	13,727	3,357
Less than 12 month Gross Unrealized Losses	(2,651)	(2,261)
Equal to or greater than 12 months Fair Value	627,018	636,362
Equal to or greater than 12 months Gross Unrealized Losses	(151,444)	(189,456)
Other asset-backed securities
Fixed maturities and short-term investments - AFS:
Less than 12 months Fair Value	97,511	227,098
Less than 12 month Gross Unrealized Losses	(972)	(3,324)
Equal to or greater than 12 months Fair Value	139,949	161,312
Equal to or greater than 12 months Gross Unrealized Losses	(28,329)	(28,467)
HTM securities
Less than 12 months Fair Value	8,972	7,743
Less than 12 month Gross Unrealized Losses	(464)	(314)
Equal to or greater than 12 months Fair Value	0	1,106
Equal to or greater than 12 months Gross Unrealized Losses	0	(6)
U.S. States and political subdivisions of the States [Member]
Fixed maturities and short-term investments - AFS:
Less than 12 months Fair Value	10,227	25,309
Less than 12 month Gross Unrealized Losses	(121)	(199)
Equal to or greater than 12 months Fair Value	16,029	27,646
Equal to or greater than 12 months Gross Unrealized Losses	(1,660)	(2,021)
Non US Sovereign Government Supranational And Government Related [Member]
Fixed maturities and short-term investments - AFS:
Less than 12 months Fair Value	296,340	265,766
Less than 12 month Gross Unrealized Losses	(4,296)	(4,707)
Equal to or greater than 12 months Fair Value	163,791	202,890
Equal to or greater than 12 months Gross Unrealized Losses	(10,624)	(13,166)
HTM securities
Less than 12 months Fair Value	20,173	79,242
Less than 12 month Gross Unrealized Losses	(71)	(1,206)
Equal to or greater than 12 months Fair Value	8,725	18,330
Equal to or greater than 12 months Gross Unrealized Losses	(3,103)	(4,744)
Equity Securities [Member]
Fixed maturities and short-term investments - AFS:
Less than 12 months Fair Value	422,204	361,585
Less than 12 month Gross Unrealized Losses	(27,871)	(40,435)
Equal to or greater than 12 months Fair Value	0	0
Equal to or greater than 12 months Gross Unrealized Losses	$ 0	$ 0

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Share Capital (Details) - Authorized and issued (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2012 Common Class A [Member] 2010 Repurchase Authorization [Member]	Mar. 31, 2012 Common Class A [Member] 2012 Repurchase Authorization [Member]	Jun. 30, 2012 Common Class A [Member] 2012 Repurchase Authorization [Member]
Equity Class Of Treasury Stock [Line Items]
Stock Repurchase Program Authorized Amount		$ 190.0		$ 750.0
Stock Repurchase Program Remaining Authorized Repurchase Amount				525.0
Treasury Stock Value Retired Par Value Method	$ 125.0		$ 100.0
Treasury Stock, Shares, Retired (in Shares)	6.1		4.7

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UNAUDITED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Investments:
Fixed maturities, at fair value (amortized cost: 2012, $25,442,779; 2011, $25,771,715)	$ 26,242,802	$ 26,190,025
Equity securities, at fair value (cost: 2012, $553,715; 2010, $480,685)	529,056	468,197
Short-term investments, at fair value (amortized cost: 2012, $227,321; 2011, $359,378)	227,380	359,063
Total investments available for sale	26,999,238	27,017,285
Fixed maturities, held to maturity at amortized cost (fair value: 2012, $3,006,292; 2011, $2,895,688)	2,716,357	2,668,978
Investments in affiliates	1,024,353	1,052,729
Other investments	1,208,220	985,262
Total investments	31,948,168	31,724,254
Cash and cash equivalents	3,311,146	3,825,125
Accrued investment income	323,898	331,758
Deferred acquisition costs	723,597	647,113
Ceded unearned premiums	744,548	596,895
Premiums receivable	3,107,931	2,411,611
Reinsurance balances receivable	223,187	220,017
Unpaid losses and loss expenses recoverable	3,342,628	3,654,948
Receivable from investments sold	57,549	59,727
Goodwill and other intangible assets	405,516	407,321
Deferred tax asset	132,508	115,601
Other assets	619,480	670,895
Total assets	44,940,156	44,665,265
Liabilities:
Unpaid losses and loss expenses	19,961,950	20,613,901
Deposit liabilities	1,600,595	1,608,108
Future policy benefit reserves	4,740,907	4,845,394
Unearned premiums	4,231,975	3,555,310
Notes payable and debt	1,673,921	2,275,327
Reinsurance balances payable	516,886	90,552
Payable for investments purchased	51,683	58,494
Deferred tax liability	154,497	91,104
Other liabilities	793,940	770,945
Total liabilities	33,726,354	33,909,135
Commitments and Contingencies	0	0
Shareholders' Equity:
Ordinary shares, 999,990,000 authorized, par value $0.01; issued and outstanding: (2012, 305,692,155; 2011, 315,645,796)	3,057	3,156
Additional paid in capital	8,738,204	8,938,679
Accumulated other comprehensive income	910,760	583,064
Retained earnings (deficit)	215,788	(113,241)
Shareholders' equity attributable to XL Group plc	9,867,809	9,411,658
Non-controlling interest in equity of consolidated subsidiaries	1,345,993	1,344,472
Total shareholders' equity	11,213,802	10,756,130
Total liabilities and shareholders' equity	$ 44,940,156	$ 44,665,265

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Derivative Instruments (Details) - Narrative (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended		6 Months Ended
	Jul. 31, 2012 contracts	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Derivative [Line Items]
Derivative, Collateral, Obligation to Return Cash		$ 124.7		$ 124.7		$ 77.1
Increase (Decrease) in Accrued Investment Income Receivable		2.5	2.6	4.9	5.1
Derivatives Number of Instruments Settled	2
Notes Payable And Debt [Member]
Derivative [Line Items]
Cumulative increase to carrying value		21.6		21.6
Deposit Liabilities [Member]
Derivative [Line Items]
Cumulative increase to carrying value	$ 83.7	$ 149.5		$ 149.5
Weighted average years to maturity	16 years 1 month 6 days

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UNAUDITED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $) In Thousands	Total	Ordinary Shares	Additional Paid in Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings (Deficit)	Non-controlling Interest in Equity of Consolidated Subsidiaries
Balance at Dec. 31, 2010		$ 3,165	$ 8,993,016	$ 100,795	$ 500,497	$ 1,002,296
Issuance of ordinary shares		3	976
Buybacks of ordinary shares		(116)	(258,787)
Exercise of stock options		0	1,087
Share based compensation expense			20,008
Change in net unrealized gains (losses) on investments, net of tax				181,206
Change in net unrealized gains (losses) on affiliate and other investments, net of tax	32,666			32,666
Change in OTTI losses recognized in other comprehensive income, net of tax				24,124
Change in underfunded pension liability	(397)			(397)
Change in value of cash flow hedge	220			220
Foreign currency translation adjustments	84,357			84,357
Net income (loss) attributable to XL Group plc	(1,621)				(1,621)
Dividends on ordinary shares					(68,529)
Non-controlling interests - contribution						0
Non-controlling interests						1
Non-controlling interest share in change in AOCI						(16)
Purchase of preference ordinary shares						(500)
Balance at Jun. 30, 2011	10,614,451	3,052	8,756,300	422,971	430,347	1,001,781
Balance at Dec. 31, 2011	10,756,130	3,156	8,938,679	583,064	(113,241)	1,344,472
Issuance of ordinary shares		9	1,376
Buybacks of ordinary shares		(109)	(225,869)
Exercise of stock options		1	1,349
Share based compensation expense			22,669
Change in net unrealized gains (losses) on investments, net of tax				321,657
Change in net unrealized gains (losses) on affiliate and other investments, net of tax	16,383			16,383
Change in OTTI losses recognized in other comprehensive income, net of tax				26,417
Change in underfunded pension liability	(7)			(7)
Change in value of cash flow hedge	220			220
Foreign currency translation adjustments	(36,974)			(36,974)
Net income (loss) attributable to XL Group plc	397,784				397,784
Dividends on ordinary shares					(68,755)
Non-controlling interests - contribution						1,500
Non-controlling interests						(12)
Non-controlling interest share in change in AOCI						33
Purchase of preference ordinary shares						0
Balance at Jun. 30, 2012	$ 11,213,802	$ 3,057	$ 8,738,204	$ 910,760	$ 215,788	$ 1,345,993

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Computation of Earnings Per Ordinary Share and Ordinary Share Equivalent (Details) - Computation of basic and diluted earnings per share (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Basic earnings per ordinary share and ordinary share equivalents:
Net income (loss) attributable to ordinary shareholders (in Dollars)	$ 221,156	$ 225,663	$ 397,784	$ (1,621)
Weighted average ordinary shares outstanding	309,765	309,184	312,442	310,325
Basic earnings per ordinary share & ordinary share equivalents outstanding (in Dollars per share)	$ 0.71	$ 0.73	$ 1.27	$ (0.01)
Diluted earnings per ordinary share and ordinary share equivalents:
Net income (loss) attributable to ordinary shareholders	221,156	225,663	397,784	(1,621)
Impact of assumed conversion of 10.75% Units	0	11,977	0	0
Net income (loss) attributable to ordinary shareholders including impact of assumed conversion of 10.75% Units	$ 221,156	$ 237,640	$ 397,784	$ (1,621)
Weighted average ordinary shares outstanding - basic	309,765	309,184	312,442	310,325
Impact of share based compensation and certain conversion features	2,670	32,805	2,568	0
Weighted average ordinary shares outstanding - diluted	312,435	341,989	315,010	310,325
Diluted earnings per ordinary share & ordinary share equivalents outstanding (in Dollars per share)	$ 0.71	$ 0.69	$ 1.26	$ (0.01)
Dividends per ordinary share (in Dollars per share)	$ 0.11	$ 0.11	$ 0.22	$ 0.22

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Segment Information (Details) - Statement of earnings by segment (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2012		Jun. 30, 2011
Segment Reporting Information [Line Items]
Gross premiums written	$ 1,856,355		$ 1,862,724		$ 4,260,022		$ 4,059,503
Net premiums written	1,432,901		1,398,253		3,474,625		3,202,207
Net premiums earned	1,486,595		1,398,339		2,923,013		2,759,722
Net losses and loss expenses	(957,505)		(961,000)		(1,932,877)		(2,303,096)
Acquisition costs	(218,937)		(215,099)		(443,088)		(403,589)
Operating expenses	(237,067)	[1]	(212,884)	[1]	(463,767)	[1]	(424,775)	[1]
Underwriting profit (loss)	73,086		9,356		83,281		(371,738)
Net investment income	245,226		278,110		493,220		538,651
Net results from structured products	(13,866)	[2]	4,916	[2]	(8,549)	[2]	12,390	[2]
Net fee income and other	(815)	[3]	(3,131)	[4]	(2,454)	[3]	(7,608)	[4]
Net realized gains (losses) on investments	(12,393)		(9,544)		8,410		(75,981)
Contribution from P&C and life operations	291,238		279,707		573,908		95,714
Corporate & other:
Derivative Gain Loss On Derivative Net	(4,300)		(10,950)		(3,598)		(7,383)
Net income (loss) from investment fund affiliates and operating affiliates	25,658	[5]	56,501	[5]	61,319	[5]	97,287	[5]
Exchange gains (losses)	17,976		8,498		5,258		(1,016)
Corporate operating expenses	(50,061)		(39,566)		(94,321)		(75,258)
Interest expense	(26,089)	[6]	(41,599)	[6]	(53,409)	[6]	(83,498)	[6]
Non-controlling interest in net income (loss) of subsidiary	(3,454)		(2,102)		(40,011)		(35,438)
Income taxes & other	(29,812)		(24,826)		(51,362)		7,971
Net income (loss) attributable to XL Group plc and ordinary shareholders	221,156		225,663		397,784		(1,621)
Total P And C Segment [Member]
Segment Reporting Information [Line Items]
Gross premiums written	1,763,451		1,762,443		4,080,435		3,861,563
Net premiums written	1,347,278		1,306,059		3,310,506		3,020,341
Net premiums earned	1,400,972		1,306,125		2,758,870		2,577,821
Net losses and loss expenses	(826,355)		(823,584)		(1,680,420)		(2,032,449)
Acquisition costs	(211,007)		(205,331)		(427,507)		(386,501)
Operating expenses	(234,238)	[1]	(210,161)	[1]	(458,331)	[1]	(419,886)	[1]
Underwriting profit (loss)	129,372		67,049		192,612		(261,015)
Net investment income	170,581		196,053		343,549		379,618
Net results from structured products	(13,866)	[2]	4,916	[2]	(8,549)	[2]	12,390	[2]
Net fee income and other	(857)	[3]	(3,227)	[4]	(2,544)	[3]	(7,745)	[4]
Net realized gains (losses) on investments	(2,154)		(10,248)		22,813		(37,134)
Contribution from P&C and life operations	283,076		254,543		547,881		86,114
Ratios - P&C operations: (6)
Loss and loss expense ratio	59.00%	[7]	63.10%	[7]	60.90%	[7]	78.80%	[7]
Underwriting expense ratio	31.80%	[7]	31.80%	[7]	32.10%	[7]	31.30%	[7]
Combined ratio	90.80%	[7]	94.90%	[7]	93.00%	[7]	110.10%	[7]
Insurance Segment [Member]
Segment Reporting Information [Line Items]
Gross premiums written	1,311,034		1,290,030		2,647,668		2,512,379
Net premiums written	944,267		893,191		1,980,793		1,812,181
Net premiums earned	959,294		907,443		1,893,350		1,783,363
Net losses and loss expenses	(635,284)		(608,182)		(1,266,969)		(1,396,695)
Acquisition costs	(123,284)		(113,883)		(251,540)		(221,527)
Operating expenses	(192,247)	[1]	(166,608)	[1]	(377,593)	[1]	(330,703)	[1]
Underwriting profit (loss)	8,479		18,770		(2,752)		(165,562)
Net investment income	0		0		0		0
Net results from structured products	9,047	[2]	2,690	[2]	11,866	[2]	5,950	[2]
Net fee income and other	(1,847)	[3]	(3,218)	[4]	(3,867)	[3]	(9,130)	[4]
Ratios - P&C operations: (6)
Loss and loss expense ratio	66.20%	[7]	67.00%	[7]	66.90%	[7]	78.30%	[7]
Underwriting expense ratio	32.90%	[7]	30.90%	[7]	33.20%	[7]	31.00%	[7]
Combined ratio	99.10%	[7]	97.90%	[7]	100.10%	[7]	109.30%	[7]
Reinsurance Segment [Member]
Segment Reporting Information [Line Items]
Gross premiums written	452,417		472,413		1,432,767		1,349,184
Net premiums written	403,011		412,868		1,329,713		1,208,160
Net premiums earned	441,678		398,682		865,520		794,458
Net losses and loss expenses	(191,071)		(215,402)		(413,451)		(635,754)
Acquisition costs	(87,723)		(91,448)		(175,967)		(164,974)
Operating expenses	(41,991)	[1]	(43,553)	[1]	(80,738)	[1]	(89,183)	[1]
Underwriting profit (loss)	120,893		48,279		195,364		(95,453)
Net investment income	0		0		0		0
Net results from structured products	(22,913)	[2]	2,226	[2]	(20,415)	[2]	6,440	[2]
Net fee income and other	990	[3]	(9)	[4]	1,323	[3]	1,385	[4]
Ratios - P&C operations: (6)
Loss and loss expense ratio	43.30%	[7]	54.00%	[7]	47.80%	[7]	80.00%	[7]
Underwriting expense ratio	29.30%	[7]	33.90%	[7]	29.60%	[7]	32.00%	[7]
Combined ratio	72.60%	[7]	87.90%	[7]	77.40%	[7]	112.00%	[7]
Life Operations Segment [Member]
Segment Reporting Information [Line Items]
Gross premiums written	92,904		100,281		179,587		197,940
Net premiums written	85,623		92,194		164,119		181,866
Net premiums earned	85,623		92,214		164,143		181,901
Net losses and loss expenses	(131,150)		(137,416)		(252,457)		(270,647)
Acquisition costs	(7,930)		(9,768)		(15,581)		(17,088)
Operating expenses	(2,829)	[1]	(2,723)	[1]	(5,436)	[1]	(4,889)	[1]
Underwriting profit (loss)	(56,286)		(57,693)		(109,331)		(110,723)
Net investment income	74,645		82,057		149,671		159,033
Net fee income and other	42	[3]	96	[4]	90	[3]	137	[4]
Net realized gains (losses) on investments	(10,239)		704		(14,403)		(38,847)
Contribution from P&C and life operations	$ 8,162		$ 25,164		$ 26,027		$ 9,600

[1] Operating expenses exclude Corporate operating expenses, shown separately.

[2] The net results from P&C structured products include net investment income and interest expense.

[3] Net fee income and other includes operating expenses from the Company's loss prevention consulting services business.

[4] Net fee income and other includes operating expenses from the Company's loss prevention consulting services business and expenses related to the cost of an endorsement facility with National Indemnity Company.

[5] The Company records the income related to the alternative funds and to the private investment and operating fund affiliates on a one-month and three-month lag, respectively.

[6] Interest expense excludes interest expense related to deposit liabilities recorded in the Insurance and Reinsurance segments.

[7] Ratios are based on net premiums earned from P&C operations.

XML

Investments (Tables)

6 Months Ended

Jun. 30, 2012

Investments [Abstract]

Available For Sale Securities And Held To Maturity Securities [Table Text Block]

				Included in AOCI
						Gross Unrealized Losses
							Related to
		Cost or		Gross			Changes in		Non-credit
June 30, 2012		Amortized		Unrealized			Estimated		Related
(U.S. dollars in thousands)		Cost		Gains			Fair Value		OTTI		Fair Value
Fixed maturities - AFS
	U.S. Government and Government- Related/Supported (1)	$	1,971,384	$	133,040		$	(2,799)	$	-	$	2,101,625
	Corporate (2) (3) (4)		9,297,657		597,211			(157,659)		(16,056)		9,721,153
	RMBS – Agency		5,001,023		203,766			(2,476)		-		5,202,313
	RMBS – Non-Agency		728,309		21,822			(52,341)		(113,247)		584,543
	CMBS		842,802		66,058			(487)		(3,581)		904,792
	CDO		796,018		8,095			(149,211)		(4,884)		650,018
	Other asset-backed securities (2)		1,392,065		44,974			(19,486)		(9,815)		1,407,738
	U.S. States and political subdivisions of the States		1,640,991		125,221			(1,781)		-		1,764,431
	Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported (1)		3,772,530		148,569			(14,910)		-		3,906,189
	Total fixed maturities - AFS	$	25,442,779	$	1,348,756		$	(401,150)	$	(147,583)	$	26,242,802
	Total short-term investments (1)	$	227,321	$	293		$	(234)	$	-	$	227,380
	Total equity securities	$	553,715	$	3,212		$	(27,871)	$	-	$	529,056
Total investments - AFS		$	26,223,815	$	1,352,261		$	(429,255)	$	(147,583)	$	26,999,238
Fixed maturities - HTM
	U.S. Government and Government- Related/Supported (1)	$	10,458	$	1,753		$	-	$	-	$	12,211
	Corporate (2)		1,387,033		131,267			(8,847)		-		1,509,453
	RMBS – Non-Agency		81,028		6,077			(15)		-		87,090
	CMBS		12,546		1,667			-		-		14,213
	Other asset-backed securities (2)		217,347		20,156			(464)		-		237,039
	Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported (1)		1,007,945		142,215			(3,174)		-		1,146,986
Total investments - HTM		$	2,716,357	$	303,135		$	(12,500)	$	-	$	3,006,992

_______________

(1)       U.S. Government and Government-Related/Supported, Non-U.S. Sovereign Government, Provincials, Supranationals and Government-Related/Supported and Total short-term investments includes government-related securities with an amortized cost of $2,012.4 million and fair value of $2,066.0million and U.S. Agencies with an amortized cost of $455.0million and fair value of $500.5 million.

(2)       At June 30, 2012, Covered Bonds within Fixed maturities – AFS with an amortized cost of $478.1million and a fair value of $500.5million and Covered Bonds within Fixed maturities – HTM with an amortized cost of $8.1million and a fair value of $7.8million have been included within Other asset-backed securities to align the Company's classification to market indices. Covered Bonds were included in Corporate prior to January 1, 2012.

(3)       Included within Corporate are certain medium term notes supported primarily by pools of European investment grade credit with varying degrees of leverage. The notes have a fair value of $186.1million and an amortized cost of $199.1million. These notes allow the investor to participate in cash flows of the underlying bonds including certain residual values, which could serve to either decrease or increase the ultimate values of these notes.

(4)       Included within Corporate are Tier One and Upper Tier Two securities, representing committed term debt and hybrid instruments, which are senior to the common and preferred equities of the financial institutions. These securities have a fair value of $346.2million and an amortized cost of $420.3million at June 30, 2012.

				Included in AOCI
						Gross Unrealized Losses
							Related to
		Cost or		Gross			Changes in		Non-credit
December 31, 2011		Amortized		Unrealized			Estimated		Related
(U.S. dollars in thousands)		Cost		Gains			Fair Value		OTTI		Fair Value
Fixed maturities - AFS
	U.S. Government and Government- Related/Supported (1)	$	1,864,354	$	130,874		$	(4,245)	$	-	$	1,990,983
	Corporate (2) (3) (4)		9,866,677		527,192			(233,581)		(51,666)		10,108,622
	RMBS – Agency		5,189,473		193,782			(3,849)		-		5,379,406
	RMBS – Non-Agency		851,557		19,667			(112,867)		(116,542)		641,815
	CMBS		927,684		56,704			(2,405)		(7,148)		974,835
	CDO		843,553		6,624			(186,578)		(4,997)		658,602
	Other asset-backed securities (2)		1,341,309		30,731			(25,486)		(6,305)		1,340,249
	U.S. States and political subdivisions of the States		1,698,573		101,025			(2,220)		-		1,797,378
	Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported (1)		3,188,535		127,439			(17,839)		-		3,298,135
	Total fixed maturities - AFS	$	25,771,715	$	1,194,038		$	(589,070)	$	(186,658)	$	26,190,025
	Total short-term investments (1)	$	359,378	$	519		$	(834)	$	-	$	359,063
	Total equity securities	$	480,685	$	27,947		$	(40,435)	$	-	$	468,197
Total investments - AFS		$	26,611,778	$	1,222,504		$	(630,339)	$	(186,658)	$	27,017,285
Fixed maturities - HTM
	U.S. Government and Government- Related/Supported (2)	$	10,399	$	1,510		$	-	$	-	$	11,909
	Corporate (2)		1,290,209		91,313			(14,433)		-		1,367,089
	RMBS – Non-Agency		80,955		6,520			(32)		-		87,443
	Other asset-backed securities (2)		288,741		20,875			(320)		-		309,296
	Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported (1)		998,674		127,227			(5,950)		-		1,119,951
Total investments - HTM		$	2,668,978	$	247,445		$	(20,735)	$	-	$	2,895,688

_______________

(1)       U.S. Government and Government-Related/Supported, Non-U.S. Sovereign Government, Provincials, Supranationals and Government-Related/Supported and Total short-term investments includes government-related securities with an amortized cost of $1,878.3 million and fair value of $1,915.6 million and U.S. Agencies with an amortized cost of $494.0 million and fair value of $541.2 million.

(2)       Covered Bonds within Fixed maturities – AFS with an amortized cost of $345.4million and a fair value of $353.9million and Covered Bonds within Fixed maturities – HTM with an amortized cost of $8.1million and a fair value of $7.7million at December 31, 2011 have been reclassified from Corporate to Other asset-backed securities to align the Company's classification to market indices and conform to current period presentation.

(3)       Included within Corporate are certain medium term notes supported primarily by pools of European investment grade credit with varying degrees of leverage. The notes have a fair value of $266.0 million and an amortized cost of $297.7 million. These notes allow the investor to participate in cash flows of the underlying bonds including certain residual values, which could serve to either decrease or increase the ultimate values of these notes.

(4)       Included within Corporate are Tier One and Upper Tier Two securities, representing committed term debt and hybrid instruments, which are senior to the common and preferred equities of the financial institutions. These securities have a fair value of $386.1 million and an amortized cost of $494.9 million at December 31, 2011.

Contractual Maturities Of Available For Sale Securities And Held To Maturity Income Securities [Table Text Block]

		June 30,2012 (1)				December 31,2011 (1)
		Amortized		Fair		Amortized		Fair
(U.S. dollars in thousands)		Cost		Value		Cost		Value
Fixed maturities - AFS
Due less than one year		$	1,983,583	$	1,999,239	$	2,004,395	$	2,020,361
Due after 1 through 5 years			7,976,631		8,243,009		7,736,717		7,909,354
Due after 5 through 10 years			3,401,824		3,610,915		3,619,141		3,777,073
Due after 10 years			3,320,524		3,640,235		3,257,886		3,488,330
		$	16,682,562	$	17,493,398	$	16,618,139	$	17,195,118
RMBS – Agency			5,001,023		5,202,313		5,189,473		5,379,406
RMBS – Non-Agency			728,309		584,543		851,557		641,815
CMBS			842,802		904,792		927,684		974,835
CDO			796,018		650,018		843,553		658,602
Other asset-backed securities			1,392,065		1,407,738		1,341,309		1,340,249
Total mortgage and asset-backed securities		$	8,760,217	$	8,749,404	$	9,153,576	$	8,994,907
	Total fixed maturities - AFS	$	25,442,779	$	26,242,802	$	25,771,715	$	26,190,025
Fixed maturities - HTM
Due less than one year		$	30,847	$	31,138	$	11,796	$	11,768
Due after 1 through 5 years			165,678		172,104		122,091		123,871
Due after 5 through 10 years			365,103		386,251		393,865		402,424
Due after 10 years			1,843,808		2,079,157		1,771,530		1,960,886
		$	2,405,436	$	2,668,650	$	2,299,282	$	2,498,949
RMBS – Non-Agency			81,028		87,090		80,955		87,443
CMBS			12,546		14,213		-		-
Other asset-backed securities			217,347		237,039		288,741		309,296
Total mortgage and asset-backed securities		$	310,921	$	338,342	$	369,696	$	396,739
	Total fixed maturities - HTM	$	2,716,357	$	3,006,992	$	2,668,978	$	2,895,688

_______________

(1)       Included in the table above are Tier One and Upper Tier Two securities, representing committed term debt and hybrid instruments, which are senior to the common and preferred equities of the financial institutions, at their fair value of $346.2 million and $386.1 million at June 30, 2012 and December 31, 2011, respectively. These securities are reflected in the table based on their call date and have net unrealized losses of $74.7 million and $108.8 million at June 30, 2012 and December 31, 2011, respectively.

Schedule of Unrealized Loss on Investments [Table Text Block]

						Equal to or greater
		Less than 12 months				than 12 months
				Gross				Gross
June 30, 2012		Fair		Unrealized		Fair		Unrealized
(U.S. dollars in thousands)		Value		Losses		Value		Losses
Fixed maturities and short-term investments - AFS
	U.S. Government and Government-Related/Supported	$	311,939	$	(1,902)	$	10,518	$	(1,014)
	Corporate (1) (2) (3)		422,004		(12,834)		903,366		(160,988)
	RMBS – Agency		100,286		(1,496)		14,405		(980)
	RMBS – Non-Agency		29,190		(1,745)		462,704		(163,843)
	CMBS		13,945		(281)		30,996		(3,787)
	CDO		13,727		(2,651)		627,018		(151,444)
	Other asset-backed securities (3)		97,511		(972)		139,949		(28,329)
	U.S. States and political subdivisions of the States		10,227		(121)		16,029		(1,660)
	Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported		296,340		(4,296)		163,791		(10,624)
Total fixed maturities and short-term investments - AFS		$	1,295,169	$	(26,298)	$	2,368,776	$	(522,669)
Total equity securities (4)		$	422,204	$	(27,871)	$	-	$	-
Fixed maturities -HTM
	Corporate (3)	$	23,418	$	(374)	$	49,617	$	(8,473)
	RMBS – Non-Agency		4,996		(15)		-		-
	Other asset-backed securities (3)		8,972		(464)		-		-
	Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported		20,173		(71)		8,725		(3,103)
Total fixed maturities - HTM		$	57,559	$	(924)	$	58,342	$	(11,576)

_______________

(1)Included within Corporate are certain medium term notes supported primarily by pools of European investment grade credit with varying degrees of leverage. The notes, which are in a gross unrealized loss position, have a fair value of $186.1 million and an amortized cost of $199.1million. These notes allow the investor to participate in cash flows of the underlying bonds including certain residual values, which could serve to either decrease or increase the ultimate values of these notes.

(2)Included within Corporate are Tier One and Upper Tier Two securities, representing committed term debt and hybrid instruments, which are senior to the common and preferred equities of the financial institutions. These securities, which are in a gross unrealized loss position, have a fair value of $346.2 million and an amortized cost of $420.3 million at June 30, 2012.

(3)       Covered Bonds within Fixed maturities and short-term investments – AFS with a fair value of $34.3 million and Covered Bonds within Fixed Maturities – HTM with a fair value of $8.1million have been included within Other asset-backed securities to align the Company's classification to market indices.Covered Bonds were included in Corporate prior to January 1, 2012.

(4)       Included within equity securities are investments in fixed income funds with a fair value of $95.8 million and an amortized cost of $100.0 million at June 30, 2012.

						Equal to or greater
		Less than 12 months				than 12 months
				Gross				Gross
December 31, 2011		Fair		Unrealized		Fair		Unrealized
(U.S. dollars in thousands)		Value		Losses		Value		Losses
Fixed maturities and short-term investments - AFS
	U.S. Government and Government-Related/Supported	$	289,260	$	(332)	$	43,622	$	(3,984)
	Corporate (1) (2) (3)		1,078,664		(42,151)		1,185,535		(243,683)
	RMBS – Agency		310,318		(849)		36,960		(3,000)
	RMBS – Non-Agency		106,294		(31,714)		449,138		(197,695)
	CMBS		69,109		(2,716)		39,444		(6,837)
	CDO		3,357		(2,261)		636,362		(189,456)
	Other asset-backed securities (3)		227,098		(3,324)		161,312		(28,467)
	U.S. States and political subdivisions of the States		25,309		(199)		27,646		(2,021)
	Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported		265,766		(4,707)		202,890		(13,166)
Total fixed maturities and short-term investments - AFS		$	2,375,175	$	(88,253)	$	2,782,909	$	(688,309)
Total equity securities (4)		$	361,585	$	(40,435)	$	-	$	-
Fixed maturities -HTM
	Corporate (3)	$	147,836	$	(7,770)	$	62,343	$	(6,663)
	RMBS – Non-Agency		9,372		(32)		-		-
	Other asset-backed securities (3)		7,743		(314)		1,106		(6)
	Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported		79,242		(1,206)		18,330		(4,744)
Total fixed maturities - HTM		$	244,193	$	(9,322)	$	81,779	$	(11,413)

_______________

(1)       Included within Corporate are certain medium term notes supported primarily by pools of European investment grade credit with varying degrees of leverage. The notes, which are in a gross unrealized loss position, have a fair value of $266.0 million and an amortized cost of $297.7 million. These notes allow the investor to participate in cash flows of the underlying bonds including certain residual values, which could serve to either decrease or increase the ultimate values of these notes.

(2)Included within Corporate are Tier One and Upper Tier Two securities, representing committed term debt and hybrid instruments, which are senior to the common and preferred equities of the financial institutions. These securities, which are in a gross unrealized loss position, have a fair value of $386.1 million and an amortized cost of $494.9 million at December 31, 2011.

(3)       Covered Bonds within Fixed maturities and short-term investments – AFS with a fair value of $44.7 million and Covered Bonds within Fixed Maturities – HTM with a fair value of $7.7million have been included within Other asset-backed securities to align the Company's classification to market indices and to conform to current period presentation. Covered Bonds were included in Corporate prior to January 1, 2012.

(4)       Included within equity securities are investments in fixed income funds with a fair value of $91.6 million and an amortized cost of $100.0 million at December 31, 2011.

Gain (Loss) on Investments [Table Text Block]

	Three Months Ended				Six Months Ended
Net Realized Gains (Losses) on Investments	June 30,				June 30,
(U.S. dollars in thousands)	2012		2011		2012		2011
Gross realized gains	$	53,732	$	61,037	$	120,621	$	88,179
Gross realized losses on investments sold		(37,932)		(43,405)		(63,053)		(99,539)
OTTI on investments, net of amounts transferred to other comprehensive income		(28,193)		(27,176)		(49,158)		(64,621)
Net realized gains (losses) on investments	$	(12,393)	$	(9,544)	$	8,410	$	(75,981)

Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table Text Block]

	Three Months Ended				Six Months Ended
Credit Loss Impairments	June 30,				June 30,
(U.S. dollars in thousands)	2012		2011		2012		2011
Opening balance	$	314,805	$	330,170	$	333,379	$	426,372
Credit loss impairment recognized in the current period on securities not previously impaired		4,043		11,333		5,878		15,906
Credit loss impairments previously recognized on securities which matured, paid down, prepaid or were sold during the period		(40,797)		(38,316)		(59,737)		(164,027)
Credit loss impairments previously recognized on securities impaired to fair value during the period		-		-		(16,384)		-
Additional credit loss impairments recognized in the current period on securities previously impaired		21,952		13,339		36,882		38,798
Accretion of credit loss impairments previously recognized due to an increase in cash flows expected to be collected		(283)		(682)		(298)		(1,205)
Balance at June 30,	$	299,720	$	315,844	$	299,720	$	315,844

Schedule of Other Investments [Table Text Block]

Project Finance Loans	June 30,		December 31,
(U.S. dollars in thousands)	2012		2011
Aggregate loan value	$	36,536	$	49,650
Aggregate loan net carrying value	$	30,953	$	40,483
Opening allowance for loan losses	$	(9,167)	$	(9,167)
Amounts charged off during the period		3,584		-
Closing allowance for loan losses	$	(5,583)	$	(9,167)
Number of individual loan participations		4		6
Number of individual loan participations relating to the allowance for loan losses		1		2
Weighted average contractual term to maturity		1.1 years		2.1 years
Weighted average credit rating		BB		BB-
Range of individual credit ratings		BB+ to BB-		BB+ to CCC

XML

Segment Information (Details) - Net premiums earned by line of business (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2012		Jun. 30, 2011
P&C Operations:
P&C Operations	$ 1,400,972		$ 1,306,125		$ 2,758,870		$ 2,577,821
Life Operations:
Life Operations	85,623		92,214		164,143		181,901
Total	1,486,595		1,398,339		2,923,013		2,759,722
Life Operations Segment [Member]
Life Operations:
Life Operations	85,623		92,214		164,143		181,901
Total	85,623		92,214		164,143		181,901
Total P And C Segment [Member]
Life Operations:
Total	1,400,972		1,306,125		2,758,870		2,577,821
Insurance Segment [Member]
P&C Operations:
P&C Operations	959,294		907,443		1,893,350		1,783,363
Life Operations:
Total	959,294		907,443		1,893,350		1,783,363
Reinsurance Segment [Member]
P&C Operations:
P&C Operations	441,678		398,682		865,520		794,458
Life Operations:
Total	441,678		398,682		865,520		794,458
Casualty Professional Lines [Member] | Total P And C Segment [Member]
P&C Operations:
P&C Operations	384,179		374,569		762,905		743,929
Casualty Professional Lines [Member] | Insurance Segment [Member]
P&C Operations:
P&C Operations	330,876		322,654		654,696		638,297
Casualty Professional Lines [Member] | Reinsurance Segment [Member]
P&C Operations:
P&C Operations	53,303		51,915		108,209		105,632
Casualty Other Lines [Member] | Total P And C Segment [Member]
P&C Operations:
P&C Operations	244,404		241,166		485,000		448,913
Casualty Other Lines [Member] | Insurance Segment [Member]
P&C Operations:
P&C Operations	167,562		172,246		334,920		328,950
Casualty Other Lines [Member] | Reinsurance Segment [Member]
P&C Operations:
P&C Operations	76,842		68,920		150,080		119,963
Property Catastrophe [Member] | Total P And C Segment [Member]
P&C Operations:
P&C Operations	113,221		94,363		216,146		188,927
Property Catastrophe [Member] | Insurance Segment [Member]
P&C Operations:
P&C Operations	0		0		0		0
Property Catastrophe [Member] | Reinsurance Segment [Member]
P&C Operations:
P&C Operations	113,221		94,363		216,146		188,927
Other Property [Member] | Total P And C Segment [Member]
P&C Operations:
P&C Operations	269,918		252,343		539,081		495,507
Other Property [Member] | Insurance Segment [Member]
P&C Operations:
P&C Operations	124,893		117,088		258,312		224,009
Other Property [Member] | Reinsurance Segment [Member]
P&C Operations:
P&C Operations	145,025		135,255		280,769		271,498
Marine Energy Aviation And Satellite [Member] | Total P And C Segment [Member]
P&C Operations:
P&C Operations	179,608		158,794		335,452		322,757
Marine Energy Aviation And Satellite [Member] | Insurance Segment [Member]
P&C Operations:
P&C Operations	143,981		128,358		264,081		253,893
Marine Energy Aviation And Satellite [Member] | Reinsurance Segment [Member]
P&C Operations:
P&C Operations	35,627		30,436		71,371		68,864
Other Speciality Lines [Member] | Total P And C Segment [Member]
P&C Operations:
P&C Operations	190,169	[1]	165,027	[1]	374,203	[1]	333,693	[1]
Other Speciality Lines [Member] | Insurance Segment [Member]
P&C Operations:
P&C Operations	190,169	[1]	165,027	[1]	374,203	[1]	333,693	[1]
Other Speciality Lines [Member] | Reinsurance Segment [Member]
P&C Operations:
P&C Operations	0	[1]	0	[1]	0	[1]	0	[1]
Other Lines [Member] | Total P And C Segment [Member]
P&C Operations:
P&C Operations	19,473	[2]	19,863	[2]	46,083	[2]	44,095	[2]
Other Lines [Member] | Insurance Segment [Member]
P&C Operations:
P&C Operations	1,813	[2]	2,070	[2]	7,138	[2]	4,521	[2]
Other Lines [Member] | Reinsurance Segment [Member]
P&C Operations:
P&C Operations	17,660	[2]	17,793	[2]	38,945	[2]	39,574	[2]
Other Life [Member]
Life Operations:
Life Operations	54,380		58,246		101,443		115,010
Other Life [Member] | Life Operations Segment [Member]
Life Operations:
Life Operations	54,380		58,246		101,443		115,010
Annuity [Member]
Life Operations:
Life Operations	31,243		33,968		62,700		66,891
Annuity [Member] | Life Operations Segment [Member]
Life Operations:
Life Operations	$ 31,243		$ 33,968		$ 62,700		$ 66,891

[1] Other specialty lines within the Insurance segment includes: environmental, programs, equine, warranty, specie, middle markets and excess and surplus lines.

[2] Other includes credit and surety, whole account contracts, structured indemnity and other lines.

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Share Capital (Tables)

6 Months Ended

Jun. 30, 2012

Stockholders Equity Note Abstract

Schedule Of Share Based Payment Award Stock Options Valuation Assumptions Table Text Block

Dividend yield	1.90	%
Risk free interest rate	1.16	%
Volatility	46.0	%
Expected lives	6.0	years

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UNAUDITED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012		Jun. 30, 2011
Cash flows provided by (used in) operating activities:
Net income (loss)	$ 437,795		$ 33,817
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Net realized (gains) losses on investments	(8,410)		75,981
Net realized & unrealized (gains) losses on derivative instruments	3,598		7,383
Amortization of premiums (discounts) on fixed maturities	75,240		42,939
(Income) loss from investment and operating affiliates	(61,319)	[1]	(97,287)	[1]
Share based compensation	27,795		22,872
Depreciation	27,479		24,248
Accretion of deposit liabilities	49,852		40,281
Unpaid losses and loss expenses	(531,503)		67,088
Future policy benefit reserves	(88,679)		(61,147)
Unearned premiums	718,750		622,665
Premiums receivable	(739,817)		(652,203)
Unpaid losses and loss expenses recoverable	300,429		57,390
Ceded unearned premiums	(153,792)		(184,010)
Reinsurance balances receivable	(4,959)		37,536
Deferred acquisition costs	(60,901)		(79,060)
Reinsurance balances payable	427,573		279,074
Deferred tax asset - net	22,328		(51,297)
Derivatives	28,383		(46,619)
Other assets	26,077		38,458
Other liabilities	17,389		(95,299)
Other	(29,712)		24,517
Total adjustments	45,801		73,510
Net cash provided by (used in) operating activities	483,596		107,327
Cash flows provided by (used in) investing activities:
Proceeds from sale of fixed maturities and short-term investments	1,972,342		2,489,705
Proceeds from redemption of fixed maturities and short-term investments	2,280,398		1,325,898
Proceeds from sale of equity securities	123,181		157,727
Purchases of fixed maturities and short term investments	(4,093,947)		(3,527,609)
Purchases of equity securities	(197,653)		(381,918)
Net dispositions of investment affiliates	38,437		11,684
Other investments, net	(128,281)		8,877
Net cash provided by (used in) investing activities	(5,523)		84,364
Cash flows (used in) provided by financing activities:
Proceeds from issuance of ordinary shares and exercise of stock options	1,214		1,089
Buybacks of ordinary shares	(225,978)		(258,903)
Dividends paid on ordinary shares	(68,315)		(68,073)
Distributions to non-controlling interests	(39,930)		(35,599)
Contribution from non-controlling interest	1,500		0
Repayment of debt	(600,000)		0
Deposit liabilities	(56,910)		(52,565)
Net cash (used in) provided by financing activities	(988,419)		(414,051)
Effects of exchange rate changes on foreign currency cash	(3,633)		58,834
Increase (decrease) in cash and cash equivalents	(513,979)		(163,526)
Cash and cash equivalents beginning of year	3,825,125		3,022,868
Cash and cash equivalents end of year	$ 3,311,146		$ 2,859,342

[1] The Company records the income related to the alternative funds and to the private investment and operating fund affiliates on a one-month and three-month lag, respectively.

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UNAUDITED CONSOLIDATED BALANCE SHEETS (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Amortized cost of fixed maturities	$ 25,442,779	$ 25,771,715
Cost of equity securities	553,715	480,685
Amortized cost of short-term investments	227,321	359,378
Fair value of held to maturity securities	$ 3,006,992	$ 2,895,688
Ordinary shares, shares authorized (in shares)	999,990,000	999,990,000
Ordinary shares, par value (in dollars per share)	$ 0.01	$ 0.01
Ordinary shares, shares issued (in shares)	305,692,155	315,645,796
Ordinary shares, shares outstanding (in shares)	305,692,155	315,645,796

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Variable Interest Entities

6 Months Ended

Jun. 30, 2012

Variable Interest Entities Disclosure [Abstract]

Variable Interest Entities [Text Block]

10. Variable Interest Entities

At times, the Company has utilized variable interest entities (“VIEs”) both indirectly and directly in the ordinary course of the Company's business.

The Company invests in CDOs and other investment vehicles that are issued through VIEs as part of the Company's investment portfolio. The activities of these VIEs are generally limited to holding the underlying collateral used to service investments therein. The Company's involvement in these entities is passive in nature and we are not the arranger of these entities. In addition, the Company has not been involved in establishing these entities and is not the primary beneficiary of these VIEs as contemplated in current authoritative accounting guidance.

The Company has a limited number of remaining outstanding credit enhancement exposures, including written financial guarantee and credit default swap contracts. The obligations related to these transactions are often securitized through VIEs. The Company is not the primary beneficiary of these VIEs as contemplated in current authoritative accounting guidance on the basis that management does not believe that the Company has the power to direct the activities, such as asset selection and collateral management, which most significantly impact each entity's economic performance. For further details on the nature of the obligations and the size of the Company's maximum exposure, see Note 6, “Derivative Instruments,” and Note 12(a), “Commitments and Contingencies – Financial Guarantee Exposures.”

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Document And Entity Information	6 Months Ended
	Jun. 30, 2012	Aug. 06, 2012
Document and Entity Information [Abstract]
Entity Registrant Name	XL GROUP PLC
Document Type	10-Q
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		305,705,727
Amendment Flag	false
Entity Central Index Key	0000875159
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Well-known Seasoned Issuer	Yes
Document Period End Date	Jun. 30, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q2

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Computation of Earnings Per Ordinary Share and Ordinary Share Equivalent

6 Months Ended

Jun. 30, 2012

Earnings Per Share Abstract

Earnings Per Share [Text Block]

11. Computation of Earnings Per Ordinary Share and Ordinary Share Equivalent

(U.S. dollars in thousands, except per share amounts)		Three Months Ended				Six Months Ended
Basic earnings per ordinary share &		June 30,		June 30,		June 30,		June 30,
ordinary share equivalents outstanding:		2012		2011		2012		2011
	Net income (loss) attributable to ordinary shareholders	$	221,156	$	225,663	$	397,784	$	(1,621)
	Weighted average ordinary shares outstanding		309,765		309,184		312,442		310,325
	Basic earnings per ordinary share & ordinary share equivalents outstanding	$	0.71	$	0.73	$	1.27	$	(0.01)
Diluted earnings per ordinary share &
ordinary share equivalents outstanding:
	Net income (loss) attributable to ordinary shareholders	$	221,156	$	225,663	$	397,784	$	(1,621)
	Impact of assumed conversion of 10.75% Units		-		11,977		-		-
	Net income (loss) attributable to ordinary shareholders including impact of assumed conversion of 10.75% Units	$	221,156	$	237,640	$	397,784	$	(1,621)
	Weighted average ordinary shares outstanding - basic		309,765		309,184		312,442		310,325
	Impact of share based compensation and certain conversion features		2,670		32,805		2,568		-
	Weighted average ordinary shares outstanding - diluted		312,435		341,989		315,010		310,325
	Diluted earnings per ordinary share & ordinary share equivalents outstanding	$	0.71	$	0.69	$	1.26	$	(0.01)
Dividends per ordinary share		$	0.11	$	0.11	$	0.22	$	0.22

For the three and six months ended June 30, 2012 and 2011, ordinary shares available for issuance under share based compensation plans of 8.8 million and 9.0 million, and 9.7 million and 17.3 million, respectively, were not included in the calculation of diluted earnings per share because the assumed exercise or issuance of such shares would be anti-dilutive.

In addition, for the six months ended June 30, 2011, ordinary shares available for issuance under the purchase contracts associated with the 10.75% Units of 30.5 millionwere not included in the calculation of diluted earnings per share because the assumed issuance of such shares would be anti-dilutive. For further information on the 10.75% Units see Item 8, Note 15, “Notes Payable and Debt Financing Arrangements,” to the Consolidated Financial Statements in the Company's Annual Report on form 10-K for the year ended December 31, 2011.

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UNAUDITED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenues:
Net premiums earned	$ 1,486,595	$ 1,398,339	$ 2,923,013	$ 2,759,722
Net investment income	262,631	296,505	527,873	576,768
Realized investment gains (losses):
Net realized gains (losses) on investments sold	15,800	17,632	57,568	(11,360)
Other-than-temporary impairments on investments	(16,168)	(40,088)	(34,733)	(73,808)
Other-than-temporary impairments on investments transferred to (from) other comprehensive income	(12,025)	12,912	(14,425)	9,187
Total net realized (losses) on investments	(12,393)	(9,544)	8,410	(75,981)
Net realized and unrealized (losses) on derivative instruments	(4,300)	(10,950)	(3,598)	(7,383)
Income (loss) from investment fund affiliates	3,097	10,250	22,505	37,400
Fee income and other	11,109	10,582	20,968	19,514
Total revenues	1,746,739	1,695,182	3,499,171	3,310,040
Expenses:
Net losses and loss expenses incurred	826,355	823,584	1,680,420	2,032,449
Claims and policy benefits	131,150	137,416	252,457	270,647
Acquisition costs	218,937	215,099	443,088	403,589
Operating expenses	299,052	266,142	581,463	527,134
Foreign exchange (gains) losses	(17,976)	(8,498)	(5,258)	1,016
Interest expense	57,360	55,099	96,658	109,246
Total expenses	1,514,878	1,488,842	3,048,828	3,344,081
Income (loss) before income tax and income (loss) from operating affiliates	231,861	206,340	450,343	(34,041)
Income (loss) from operating affiliates	22,561	46,251	38,814	59,887
Provision (benefit) for income tax	29,812	24,826	51,362	(7,971)
Net income (loss)	224,610	227,765	437,795	33,817
Non-controlling interests	(3,454)	(2,102)	(40,011)	(35,438)
Net income (loss) attributable to XL Group plc and ordinary shareholders	$ 221,156	$ 225,663	$ 397,784	$ (1,621)
Weighted average ordinary shares and ordinary share equivalents outstanding - basic (in shares)	309,765	309,184	312,442	310,325
Weighted average ordinary shares and ordinary share equivalents outstanding - diluted (in shares)	312,435	341,989	315,010	310,325
Earnings (loss) per ordinary share and ordinary share equivalent - basic (in dollars per share)	$ 0.71	$ 0.73	$ 1.27	$ (0.01)
Earnings (loss) per ordinary share and ordinary share equivalent - diluted (in dollars per share)	$ 0.71	$ 0.69	$ 1.26	$ (0.01)

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Investments

6 Months Ended

Jun. 30, 2012

Investments [Abstract]

Investments disclosure

5. Investments

(a) Fixed Maturities, Short-Term Investments and Equity Securities

Amortized Cost and Fair Value Summary

The cost (amortized cost for fixed maturities and short-term investments), fair value, gross unrealized gains and gross unrealized (losses), including, other-than-temporary impairments (“OTTI”) recorded in accumulated other comprehensive income (“AOCI”) of the Company's available for sale (“AFS”) and held to maturity (“HTM”) investments at June 30, 2012 and December 31, 2011 were as follows:

				Included in AOCI
						Gross Unrealized Losses
							Related to
		Cost or		Gross			Changes in		Non-credit
June 30, 2012		Amortized		Unrealized			Estimated		Related
(U.S. dollars in thousands)		Cost		Gains			Fair Value		OTTI		Fair Value
Fixed maturities - AFS
	U.S. Government and Government- Related/Supported (1)	$	1,971,384	$	133,040		$	(2,799)	$	-	$	2,101,625
	Corporate (2) (3) (4)		9,297,657		597,211			(157,659)		(16,056)		9,721,153
	RMBS – Agency		5,001,023		203,766			(2,476)		-		5,202,313
	RMBS – Non-Agency		728,309		21,822			(52,341)		(113,247)		584,543
	CMBS		842,802		66,058			(487)		(3,581)		904,792
	CDO		796,018		8,095			(149,211)		(4,884)		650,018
	Other asset-backed securities (2)		1,392,065		44,974			(19,486)		(9,815)		1,407,738
	U.S. States and political subdivisions of the States		1,640,991		125,221			(1,781)		-		1,764,431
	Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported (1)		3,772,530		148,569			(14,910)		-		3,906,189
	Total fixed maturities - AFS	$	25,442,779	$	1,348,756		$	(401,150)	$	(147,583)	$	26,242,802
	Total short-term investments (1)	$	227,321	$	293		$	(234)	$	-	$	227,380
	Total equity securities	$	553,715	$	3,212		$	(27,871)	$	-	$	529,056
Total investments - AFS		$	26,223,815	$	1,352,261		$	(429,255)	$	(147,583)	$	26,999,238
Fixed maturities - HTM
	U.S. Government and Government- Related/Supported (1)	$	10,458	$	1,753		$	-	$	-	$	12,211
	Corporate (2)		1,387,033		131,267			(8,847)		-		1,509,453
	RMBS – Non-Agency		81,028		6,077			(15)		-		87,090
	CMBS		12,546		1,667			-		-		14,213
	Other asset-backed securities (2)		217,347		20,156			(464)		-		237,039
	Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported (1)		1,007,945		142,215			(3,174)		-		1,146,986
Total investments - HTM		$	2,716,357	$	303,135		$	(12,500)	$	-	$	3,006,992

_______________

(1)       U.S. Government and Government-Related/Supported, Non-U.S. Sovereign Government, Provincials, Supranationals and Government-Related/Supported and Total short-term investments includes government-related securities with an amortized cost of $2,012.4 million and fair value of $2,066.0million and U.S. Agencies with an amortized cost of $455.0million and fair value of $500.5 million.

(2)       At June 30, 2012, Covered Bonds within Fixed maturities – AFS with an amortized cost of $478.1million and a fair value of $500.5million and Covered Bonds within Fixed maturities – HTM with an amortized cost of $8.1million and a fair value of $7.8million have been included within Other asset-backed securities to align the Company's classification to market indices. Covered Bonds were included in Corporate prior to January 1, 2012.

(3)       Included within Corporate are certain medium term notes supported primarily by pools of European investment grade credit with varying degrees of leverage. The notes have a fair value of $186.1million and an amortized cost of $199.1million. These notes allow the investor to participate in cash flows of the underlying bonds including certain residual values, which could serve to either decrease or increase the ultimate values of these notes.

(4)       Included within Corporate are Tier One and Upper Tier Two securities, representing committed term debt and hybrid instruments, which are senior to the common and preferred equities of the financial institutions. These securities have a fair value of $346.2million and an amortized cost of $420.3million at June 30, 2012.

				Included in AOCI
						Gross Unrealized Losses
							Related to
		Cost or		Gross			Changes in		Non-credit
December 31, 2011		Amortized		Unrealized			Estimated		Related
(U.S. dollars in thousands)		Cost		Gains			Fair Value		OTTI		Fair Value
Fixed maturities - AFS
	U.S. Government and Government- Related/Supported (1)	$	1,864,354	$	130,874		$	(4,245)	$	-	$	1,990,983
	Corporate (2) (3) (4)		9,866,677		527,192			(233,581)		(51,666)		10,108,622
	RMBS – Agency		5,189,473		193,782			(3,849)		-		5,379,406
	RMBS – Non-Agency		851,557		19,667			(112,867)		(116,542)		641,815
	CMBS		927,684		56,704			(2,405)		(7,148)		974,835
	CDO		843,553		6,624			(186,578)		(4,997)		658,602
	Other asset-backed securities (2)		1,341,309		30,731			(25,486)		(6,305)		1,340,249
	U.S. States and political subdivisions of the States		1,698,573		101,025			(2,220)		-		1,797,378
	Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported (1)		3,188,535		127,439			(17,839)		-		3,298,135
	Total fixed maturities - AFS	$	25,771,715	$	1,194,038		$	(589,070)	$	(186,658)	$	26,190,025
	Total short-term investments (1)	$	359,378	$	519		$	(834)	$	-	$	359,063
	Total equity securities	$	480,685	$	27,947		$	(40,435)	$	-	$	468,197
Total investments - AFS		$	26,611,778	$	1,222,504		$	(630,339)	$	(186,658)	$	27,017,285
Fixed maturities - HTM
	U.S. Government and Government- Related/Supported (2)	$	10,399	$	1,510		$	-	$	-	$	11,909
	Corporate (2)		1,290,209		91,313			(14,433)		-		1,367,089
	RMBS – Non-Agency		80,955		6,520			(32)		-		87,443
	Other asset-backed securities (2)		288,741		20,875			(320)		-		309,296
	Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported (1)		998,674		127,227			(5,950)		-		1,119,951
Total investments - HTM		$	2,668,978	$	247,445		$	(20,735)	$	-	$	2,895,688

_______________

(1)       U.S. Government and Government-Related/Supported, Non-U.S. Sovereign Government, Provincials, Supranationals and Government-Related/Supported and Total short-term investments includes government-related securities with an amortized cost of $1,878.3 million and fair value of $1,915.6 million and U.S. Agencies with an amortized cost of $494.0 million and fair value of $541.2 million.

(2)       Covered Bonds within Fixed maturities – AFS with an amortized cost of $345.4million and a fair value of $353.9million and Covered Bonds within Fixed maturities – HTM with an amortized cost of $8.1million and a fair value of $7.7million at December 31, 2011 have been reclassified from Corporate to Other asset-backed securities to align the Company's classification to market indices and conform to current period presentation.

(3)       Included within Corporate are certain medium term notes supported primarily by pools of European investment grade credit with varying degrees of leverage. The notes have a fair value of $266.0 million and an amortized cost of $297.7 million. These notes allow the investor to participate in cash flows of the underlying bonds including certain residual values, which could serve to either decrease or increase the ultimate values of these notes.

(4)       Included within Corporate are Tier One and Upper Tier Two securities, representing committed term debt and hybrid instruments, which are senior to the common and preferred equities of the financial institutions. These securities have a fair value of $386.1 million and an amortized cost of $494.9 million at December 31, 2011.

At June 30, 2012 and December 31, 2011, approximately 2.7% and 2.4%, respectively, of the Company's fixed income investment portfolio at fair value was invested in securities that were below investment grade or not rated. Approximately 34.2% and 31.4% of the gross unrealized losses in the Company's fixed income securities portfolio at June 30, 2012 and December 31, 2011, respectively, related to securities that were below investment grade or not rated.

Classification of Fixed Income Securities

During the third quarter of 2011, the Company changed the manner in which it classifies fixed income securities between Fixed maturities and Short-term investments on the balance sheet and the related note disclosure. Short-term investments under the Company's previous classification comprised investments with a remaining maturity of less than one year from the reporting date. Under this prior presentation, longer term securities were reclassified from Fixed maturities to Short-term investments as they neared maturity. Under the Company's new classification, Short-term investments include investments due to mature within one year from the date of purchase and are valued using the same external factors and in the same manner as Fixed maturities. No reclassifications will be made between Fixed maturities and Short-term investments subsequent to the initial date of purchase.

This change in classification did not have an impact on the total value of investments available for sale on the balance sheet, nor did it impact the consolidated statements of income, comprehensive income, shareholders' equity or cash flows. The only impact, other than the changes in the balance sheet line items, are changes required within the detailed tables included within this note as well as Note 3, “Fair Value Measurements,” to allocate securities previously classified as Short-term investments under the former practice into the appropriate categories of Fixed maturities within each table to conform to the new accounting presentation for current and comparative periods.

During 2009 and 2010, the Company elected to hold certain fixed income securities to maturity. Consistent with this intention, the Company reclassified these securities from AFS to HTM in the consolidated financial statements. As a result of this classification, these fixed income securities are reflected in the HTM portfolio and recorded at amortized cost in the consolidated balance sheets and not fair value. Additional securities purchased that have already been designated as HTM are included as part of the HTM portfolio. The HTM portfolio is comprised of long duration non-U.S. securities, which are Euro and U.K. sterling denominated. The Company believes this HTM strategy is achievable due to the relatively stable and predictable cash flows of the Company's long-term liabilities within its Life operations, along with its ability to substitute other assets at a future date in the event that liquidity was required due to changes in expected cash flows or other transactions entered into related to the long-term liabilities supported by the HTM portfolio. At June 30, 2012, 97.3% of the HTM securities were rated A or higher. The unrealized appreciation at the dates of these reclassifications continues to be reported as a separate component of shareholders' equity and is being amortized over the remaining lives of the securities as an adjustment to yield in a manner consistent with the amortization of any premium or discount. At the time of the reclassifications, the unrealized U.S. dollar equivalent appreciation related to securities reclassified was $131.5 million in total, with $105.5 million and $108.4 million unamortized at June 30, 2012 and December 31, 2011, respectively.

Covered Bonds were included within Corporate securities prior to January 1, 2012. They are now classified as Other asset-backed securities to align the Company's classification to market indices. At December 31, 2011, Covered Bonds with a fair value of $353.9 million have been reclassified from Corporate to Other asset-backed securities to conform to current period presentation.

Contractual Maturities Summary

The contractual maturities of AFS and HTM fixed income securities at June 30, 2012 and December 31, 2011 are shown below. Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

		June 30,2012 (1)				December 31,2011 (1)
		Amortized		Fair		Amortized		Fair
(U.S. dollars in thousands)		Cost		Value		Cost		Value
Fixed maturities - AFS
Due less than one year		$	1,983,583	$	1,999,239	$	2,004,395	$	2,020,361
Due after 1 through 5 years			7,976,631		8,243,009		7,736,717		7,909,354
Due after 5 through 10 years			3,401,824		3,610,915		3,619,141		3,777,073
Due after 10 years			3,320,524		3,640,235		3,257,886		3,488,330
		$	16,682,562	$	17,493,398	$	16,618,139	$	17,195,118
RMBS – Agency			5,001,023		5,202,313		5,189,473		5,379,406
RMBS – Non-Agency			728,309		584,543		851,557		641,815
CMBS			842,802		904,792		927,684		974,835
CDO			796,018		650,018		843,553		658,602
Other asset-backed securities			1,392,065		1,407,738		1,341,309		1,340,249
Total mortgage and asset-backed securities		$	8,760,217	$	8,749,404	$	9,153,576	$	8,994,907
	Total fixed maturities - AFS	$	25,442,779	$	26,242,802	$	25,771,715	$	26,190,025
Fixed maturities - HTM
Due less than one year		$	30,847	$	31,138	$	11,796	$	11,768
Due after 1 through 5 years			165,678		172,104		122,091		123,871
Due after 5 through 10 years			365,103		386,251		393,865		402,424
Due after 10 years			1,843,808		2,079,157		1,771,530		1,960,886
		$	2,405,436	$	2,668,650	$	2,299,282	$	2,498,949
RMBS – Non-Agency			81,028		87,090		80,955		87,443
CMBS			12,546		14,213		-		-
Other asset-backed securities			217,347		237,039		288,741		309,296
Total mortgage and asset-backed securities		$	310,921	$	338,342	$	369,696	$	396,739
	Total fixed maturities - HTM	$	2,716,357	$	3,006,992	$	2,668,978	$	2,895,688

_______________

(1)       Included in the table above are Tier One and Upper Tier Two securities, representing committed term debt and hybrid instruments, which are senior to the common and preferred equities of the financial institutions, at their fair value of $346.2 million and $386.1 million at June 30, 2012 and December 31, 2011, respectively. These securities are reflected in the table based on their call date and have net unrealized losses of $74.7 million and $108.8 million at June 30, 2012 and December 31, 2011, respectively.

OTTI Considerations

Under final authoritative accounting guidance, a debt security for which amortized cost exceeds fair value is deemed to be other-than-temporarily impaired if it meets either of the following conditions: (a) the Company intends to sell, or it is more likely than not that the Company will be required to sell, the security before a recovery in value, or (b) the Company does not expect to recover the entire amortized cost basis of the security. Other than in a situation in which the Company has the intent to sell a debt security or more likely than not will be required to sell a debt security, the amount of the OTTI related to a credit loss on the security is recognized in earnings, and the amount of the OTTI related to other factors (e.g., interest rates, market conditions, etc.) is recorded as a component of OCI. The net amount recognized in earnings (“credit loss impairments”) represents the difference between the amortized cost of the security and the net present value of its projected future cash flows discounted at the effective interest rate implicit in the debt security prior to impairment (“NPV”). The remaining difference between the security's NPV and its fair value is recognized in OCI. Subsequent changes in the fair value of these securities are included in OCI unless a further impairment is deemed to have occurred.

In the scenario where the Company has the intent to sell a security in which its amortized cost exceeds its fair value, or it is more likely than not it will be required to sell such a security, the entire difference between the security's amortized cost and its fair value is recognized in earnings.

The determination of credit losses is based on detailed analyses of underlying cash flows. Such analyses require the use of certain assumptions to develop the estimated performance of underlying collateral. Key assumptions used include, but are not limited to, items such as RMBS default rates based on collateral duration in arrears, severity of losses on default by collateral class, collateral reinvestment rates and expected future general corporate default rates.

Factors considered in determining that a gross unrealized loss is not other-than-temporarily impaired include management's consideration of current and near term liquidity needs and other available sources of funds, an evaluation of the factors and time necessary for recovery and an assessment of whether the Company has the intention to sell or considers it more likely than not that it will be forced to sell a security.

Pledged Assets

Certain of the Company's invested assets are held in trust and pledged in support of insurance and reinsurance liabilities as well as credit facilities. Such pledges are largely required by the Company's operating subsidiaries that are “non-admitted” under U.S. state insurance regulations, in order for the U.S. cedant to receive statutory credit for reinsurance. Also, certain deposit liabilities and annuity contracts require the use of pledged assets. At June 30, 2012 and December 31, 2011, the Company had $17.5 billion and $17.2 billion in pledged assets, respectively.

(b) Gross Unrealized Losses

The following is an analysis of how long the AFS and HTM securities at June 30, 2012 and December 31, 2011 had been in a continual unrealized loss position:

						Equal to or greater
		Less than 12 months				than 12 months
				Gross				Gross
June 30, 2012		Fair		Unrealized		Fair		Unrealized
(U.S. dollars in thousands)		Value		Losses		Value		Losses
Fixed maturities and short-term investments - AFS
	U.S. Government and Government-Related/Supported	$	311,939	$	(1,902)	$	10,518	$	(1,014)
	Corporate (1) (2) (3)		422,004		(12,834)		903,366		(160,988)
	RMBS – Agency		100,286		(1,496)		14,405		(980)
	RMBS – Non-Agency		29,190		(1,745)		462,704		(163,843)
	CMBS		13,945		(281)		30,996		(3,787)
	CDO		13,727		(2,651)		627,018		(151,444)
	Other asset-backed securities (3)		97,511		(972)		139,949		(28,329)
	U.S. States and political subdivisions of the States		10,227		(121)		16,029		(1,660)
	Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported		296,340		(4,296)		163,791		(10,624)
Total fixed maturities and short-term investments - AFS		$	1,295,169	$	(26,298)	$	2,368,776	$	(522,669)
Total equity securities (4)		$	422,204	$	(27,871)	$	-	$	-
Fixed maturities -HTM
	Corporate (3)	$	23,418	$	(374)	$	49,617	$	(8,473)
	RMBS – Non-Agency		4,996		(15)		-		-
	Other asset-backed securities (3)		8,972		(464)		-		-
	Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported		20,173		(71)		8,725		(3,103)
Total fixed maturities - HTM		$	57,559	$	(924)	$	58,342	$	(11,576)

_______________

(1)Included within Corporate are certain medium term notes supported primarily by pools of European investment grade credit with varying degrees of leverage. The notes, which are in a gross unrealized loss position, have a fair value of $186.1 million and an amortized cost of $199.1million. These notes allow the investor to participate in cash flows of the underlying bonds including certain residual values, which could serve to either decrease or increase the ultimate values of these notes.

(2)Included within Corporate are Tier One and Upper Tier Two securities, representing committed term debt and hybrid instruments, which are senior to the common and preferred equities of the financial institutions. These securities, which are in a gross unrealized loss position, have a fair value of $346.2 million and an amortized cost of $420.3 million at June 30, 2012.

(3)       Covered Bonds within Fixed maturities and short-term investments – AFS with a fair value of $34.3 million and Covered Bonds within Fixed Maturities – HTM with a fair value of $8.1million have been included within Other asset-backed securities to align the Company's classification to market indices.Covered Bonds were included in Corporate prior to January 1, 2012.

(4)       Included within equity securities are investments in fixed income funds with a fair value of $95.8 million and an amortized cost of $100.0 million at June 30, 2012.

						Equal to or greater
		Less than 12 months				than 12 months
				Gross				Gross
December 31, 2011		Fair		Unrealized		Fair		Unrealized
(U.S. dollars in thousands)		Value		Losses		Value		Losses
Fixed maturities and short-term investments - AFS
	U.S. Government and Government-Related/Supported	$	289,260	$	(332)	$	43,622	$	(3,984)
	Corporate (1) (2) (3)		1,078,664		(42,151)		1,185,535		(243,683)
	RMBS – Agency		310,318		(849)		36,960		(3,000)
	RMBS – Non-Agency		106,294		(31,714)		449,138		(197,695)
	CMBS		69,109		(2,716)		39,444		(6,837)
	CDO		3,357		(2,261)		636,362		(189,456)
	Other asset-backed securities (3)		227,098		(3,324)		161,312		(28,467)
	U.S. States and political subdivisions of the States		25,309		(199)		27,646		(2,021)
	Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported		265,766		(4,707)		202,890		(13,166)
Total fixed maturities and short-term investments - AFS		$	2,375,175	$	(88,253)	$	2,782,909	$	(688,309)
Total equity securities (4)		$	361,585	$	(40,435)	$	-	$	-
Fixed maturities -HTM
	Corporate (3)	$	147,836	$	(7,770)	$	62,343	$	(6,663)
	RMBS – Non-Agency		9,372		(32)		-		-
	Other asset-backed securities (3)		7,743		(314)		1,106		(6)
	Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported		79,242		(1,206)		18,330		(4,744)
Total fixed maturities - HTM		$	244,193	$	(9,322)	$	81,779	$	(11,413)

_______________

(1)       Included within Corporate are certain medium term notes supported primarily by pools of European investment grade credit with varying degrees of leverage. The notes, which are in a gross unrealized loss position, have a fair value of $266.0 million and an amortized cost of $297.7 million. These notes allow the investor to participate in cash flows of the underlying bonds including certain residual values, which could serve to either decrease or increase the ultimate values of these notes.

(2)Included within Corporate are Tier One and Upper Tier Two securities, representing committed term debt and hybrid instruments, which are senior to the common and preferred equities of the financial institutions. These securities, which are in a gross unrealized loss position, have a fair value of $386.1 million and an amortized cost of $494.9 million at December 31, 2011.

(3)       Covered Bonds within Fixed maturities and short-term investments – AFS with a fair value of $44.7 million and Covered Bonds within Fixed Maturities – HTM with a fair value of $7.7million have been included within Other asset-backed securities to align the Company's classification to market indices and to conform to current period presentation. Covered Bonds were included in Corporate prior to January 1, 2012.

(4)       Included within equity securities are investments in fixed income funds with a fair value of $91.6 million and an amortized cost of $100.0 million at December 31, 2011.

The Company had gross unrealized losses totaling $576.8 million on 1,308 securities out of a total of 7,156 held at June 30, 2012 in its AFS portfolio and $12.5 million on 15 securities out of a total of 208 held in its HTM portfolio, which it considers to be temporarily impaired or with respect to which reflects non-credit losses on OTTI. Individual security positions comprising this balance have been evaluated by management to determine the severity of these impairments and whether they should be considered other-than-temporary. Management believes it is more likely than not that the issuer will be able to fund sufficient principal and interest payments to support the current amortized cost.

Management, in its assessment of whether securities in a gross unrealized loss position are temporarily impaired, considers the significance of the impairments. At June 30, 2012, the Company had structured credit securities with gross unrealized losses of $55.2 million, which had a fair value of $26.3 million, and a cumulative fair value decline of greater than 50% of amortized cost. All of these securities are mortgage and asset-backed securities. These greater than 50% impaired securities include gross unrealized losses of $32.7 million on non-Agency RMBS, $21.7 million on Core CDOs and $0.8 million of CMBS holdings.

(c) Net Realized Gains (Losses)

The following represents an analysis of net realized gains (losses) on investments:

	Three Months Ended				Six Months Ended
Net Realized Gains (Losses) on Investments	June 30,				June 30,
(U.S. dollars in thousands)	2012		2011		2012		2011
Gross realized gains	$	53,732	$	61,037	$	120,621	$	88,179
Gross realized losses on investments sold		(37,932)		(43,405)		(63,053)		(99,539)
OTTI on investments, net of amounts transferred to other comprehensive income		(28,193)		(27,176)		(49,158)		(64,621)
Net realized gains (losses) on investments	$	(12,393)	$	(9,544)	$	8,410	$	(75,981)

The significant components of the net impairment charges of $28.2 million for the three months ended June 30, 2012 were:

▪       $14.3 million for structured securities where the Company determined that the likely recovery on these securities was below the carrying value and, accordingly, recorded an impairment of the securities to the discounted value of the cash flows expected to be received on these securities.

▪$10.2 million related to medium term notes backed primarily by European investment grade credit. On certain notes, management concluded that future returns on the underlying assets were not sufficient to support the previously reported amortized cost.The Company also adjusted the estimated remaining holding period of certain notes resulting in a shorter reinvestment spectrum.

▪$2.2 million related to currency lossesprimarily arising on U.K. sterling denominated securities held in U.S. dollar portfolios.

▪       $1.5 million related to equities as the holding was more than 50% impaired.

The following table sets forth the amount of credit loss impairments on fixed income securities held by the Company as of the dates indicated, for which a portion of the OTTI loss was recognized in OCI, and the corresponding changes in such amounts.

	Three Months Ended				Six Months Ended
Credit Loss Impairments	June 30,				June 30,
(U.S. dollars in thousands)	2012		2011		2012		2011
Opening balance	$	314,805	$	330,170	$	333,379	$	426,372
Credit loss impairment recognized in the current period on securities not previously impaired		4,043		11,333		5,878		15,906
Credit loss impairments previously recognized on securities which matured, paid down, prepaid or were sold during the period		(40,797)		(38,316)		(59,737)		(164,027)
Credit loss impairments previously recognized on securities impaired to fair value during the period		-		-		(16,384)		-
Additional credit loss impairments recognized in the current period on securities previously impaired		21,952		13,339		36,882		38,798
Accretion of credit loss impairments previously recognized due to an increase in cash flows expected to be collected		(283)		(682)		(298)		(1,205)
Balance at June 30,	$	299,720	$	315,844	$	299,720	$	315,844

During the three months ended June 30, 2012 and 2011, the $40.8 million and $38.3 million, respectively, of credit loss impairments previously recognized on securities that matured, or were paid down, prepaid or sold, includes $21.9 million and $20.9 million, respectively, of non-Agency RMBS.

During the six months ended June 30, 2012 and 2011, the $59.7 million and $164.0 million, respectively, of credit loss impairments previously recognized on securities that matured, or were paid down, prepaid or sold, includes $31.8 million and $112.6 million, respectively, of non-Agency RMBS.

(d) Other Investments

Structured Transactions - Project Finance Loans

The Company historically participated in structured transactions in project finance related areas under which the Company provided a cash loan supporting project finance transactions. These transactions are accounted for in accordance with guidance governing accounting by certain entities (including entities with trade receivables) that lend to or finance the activities of others under which the loans are considered held for investment as the Company has the intent and ability to hold for the foreseeable future or until maturity or payoff. Accordingly, these funded loan participations are reported in the balance sheet at outstanding principal adjusted for any allowance for loan losses as considered necessary by management.

The following table shows a summary of the structured project finance loans at June 30, 2012 and December 31, 2011:

Project Finance Loans	June 30,		December 31,
(U.S. dollars in thousands)	2012		2011
Aggregate loan value	$	36,536	$	49,650
Aggregate loan net carrying value	$	30,953	$	40,483
Opening allowance for loan losses	$	(9,167)	$	(9,167)
Amounts charged off during the period		3,584		-
Closing allowance for loan losses	$	(5,583)	$	(9,167)
Number of individual loan participations		4		6
Number of individual loan participations relating to the allowance for loan losses		1		2
Weighted average contractual term to maturity		1.1 years		2.1 years
Weighted average credit rating		BB		BB-
Range of individual credit ratings		BB+ to BB-		BB+ to CCC

Surveillance procedures are conducted over each structured project finance loan on an ongoing basis with current expectations of future collections of contractual interest and principal used to determine whether any allowance for loan losses may be required at each period end. If it is determined that a future credit loss on a specific contract is reasonably possible and an amount can be estimated, an allowance is recorded. The contractual receivable is only charged off when the final outcome is known and the Company has exhausted all commercial efforts to try and collect any outstanding balances.

During the six months ended June 30, 2012 and the year ended December 31, 2011, management conducted separate reviews of each loan participation and determined loss allowance estimates, as shown in the table above, using a recovery value concept. Management considers recovery value to be the percentage of all future contractual interest and principal that the Company expects to receive from the borrower through any combination of regular debt service, other payments, salvage and recovery. The allowances for loan losses are made when it is probable that a loss will be incurred based upon current information received from the borrower.

Investment Fund Consolidation

During May 2012, the Company invested $25.0 million to obtain a 94% interest in Five Oaks Investment Corp. (“Five Oaks”), a newly formed private investment company. Five Oaks is a mortgage real estate investment trust that is expected to follow an investment strategy balancing a leveraged portfolio of Agency RMBS with an unlevered or moderately levered portfolio of non-Agency RMBS. Five Oaks may enter into repurchase agreements to acquire investment leverage up to a maximum of $79.5 million. At June 30, 2012, the Company has consolidated Five Oaks resulting in the recording within its balance sheet of: RMBS securities at their fair value of $80.7 million (amortized cost: $80.6 million) within Fixed maturities, $14.9 million of Cash and cash equivalents, $69.1 million of liabilities related to obligations under repurchase agreements within Other liabilities, and $1.5 million of Non-controlling interest in equity of consolidated subsidiaries. $75.6million of securities held by Five Oaks and consolidated by XL are pledged as collateral under the repurchase agreements. The repurchase agreements do not provide the counterparties any recourse to assets of XL aside from its investment in Five Oaks. Amounts recorded within the Company's consolidated statement of income related to Five Oaks were immaterial during the three and six month periods ended June 30, 2012. In addition, the Company has purchased an equity interest in Oak Circle Capital Partners (“Oak Circle”), the investment management company that provides portfolio management and other administrative services to Five Oaks. XL's investment in Oak Circle has been accounted for using the equity method consistent with other investment manager affiliate positions held by the Company.

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Segment Information

6 Months Ended

Jun. 30, 2012

Segment Reporting Abstract

Segment Reporting Disclosure [Text Block]

4. Segment Information

The Company is organized into three operating segments: Insurance, Reinsurance and Life operations. The Company's general investment and financing operations are reflected in Corporate.

The Company evaluates the performance of both the Insurance and Reinsurance segments based on underwriting profit while the Life operations segment performance is based on contribution. Other items of revenue and expenditure of the Company are not evaluated at the segment level. In addition, the Company does not allocate investment assets by segment for its Property and Casualty (“P&C”) operations. Investment assets related to the Company's Life operations and certain structured products included in the Insurance and Reinsurance segments and Corporate are held in separately identified portfolios. As such, net investment income from these assets is included in the contribution from the applicable segment.

Three Months Ended June 30, 2012							Life
(U.S. dollars in thousands, except ratios)	Insurance		Reinsurance		Total P&C		Operations		Total
Gross premiums written	$	1,311,034	$	452,417	$	1,763,451	$	92,904	$	1,856,355
Net premiums written		944,267		403,011		1,347,278		85,623		1,432,901
Net premiums earned		959,294		441,678		1,400,972		85,623		1,486,595
Net losses and loss expenses		(635,284)		(191,071)		(826,355)		(131,150)		(957,505)
Acquisition costs		(123,284)		(87,723)		(211,007)		(7,930)		(218,937)
Operating expenses (1)		(192,247)		(41,991)		(234,238)		(2,829)		(237,067)
Underwriting profit (loss)	$	8,479	$	120,893	$	129,372	$	(56,286)	$	73,086
Net investment income		-		-		170,581		74,645		245,226
Net results from structured products (2)		9,047		(22,913)		(13,866)		-		(13,866)
Net fee income and other (3)		(1,847)		990		(857)		42		(815)
Net realized gains (losses) on investments						(2,154)		(10,239)		(12,393)
Contribution from P&C and Life Operations					$	283,076	$	8,162	$	291,238
Corporate & other:
Net realized & unrealized gains (losses) on derivative instruments										(4,300)
Net income (loss) from investment fund affiliates and operating affiliates (4)										25,658
Exchange gains (losses)										17,976
Corporate operating expenses										(50,061)
Interest expense (5)										(26,089)
Non-controlling interests										(3,454)
Income tax										(29,812)
Net income (loss) attributable to XL Group plc									$	221,156
Ratios – P&C operations: (6)
Loss and loss expense ratio		66.2%		43.3%		59.0%
Underwriting expense ratio		32.9%		29.3%		31.8%
Combined ratio		99.1%		72.6%		90.8%

_______________

(1)       Operating expenses exclude Corporate operating expenses, shown separately.

(2)       The net results from P&C structured products include net investment income and interest expense of $17.4 million and $31.3 million, respectively.

(3)       Net fee income and other includes operating expenses from the Company's loss prevention consulting services business.

(4)       The Company records the income related to the alternative funds and to the private investment and operating fund affiliates on a one-month and three-month lag, respectively.

(5)       Interest expense excludes interest expense related to deposit liabilities recorded in the Insurance and Reinsurance segments.

(6)       Ratios are based on net premiums earned from P&C operations.

Three Months Ended June 30, 2011							Life
(U.S. dollars in thousands, except ratios)	Insurance		Reinsurance		Total P&C		Operations		Total
Gross premiums written	$	1,290,030	$	472,413	$	1,762,443	$	100,281	$	1,862,724
Net premiums written		893,191		412,868		1,306,059		92,194		1,398,253
Net premiums earned		907,443		398,682		1,306,125		92,214		1,398,339
Net losses and loss expenses		(608,182)		(215,402)		(823,584)		(137,416)		(961,000)
Acquisition costs		(113,883)		(91,448)		(205,331)		(9,768)		(215,099)
Operating expenses (1)		(166,608)		(43,553)		(210,161)		(2,723)		(212,884)
Underwriting profit (loss)	$	18,770	$	48,279	$	67,049	$	(57,693)	$	9,356
Net investment income		-		-		196,053		82,057		278,110
Net results from structured products (2)		2,690		2,226		4,916		-		4,916
Net fee income and other (3)		(3,218)		(9)		(3,227)		96		(3,131)
Net realized gains (losses) on investments						(10,248)		704		(9,544)
Contribution from P&C and Life Operations					$	254,543	$	25,164	$	279,707
Corporate & other:
Net realized & unrealized gains (losses) on derivative instruments										(10,950)
Net income (loss) from investment fund affiliates and operating affiliates (4)										56,501
Exchange gains (losses)										8,498
Corporate operating expenses										(39,566)
Interest expense (5)										(41,599)
Non-controlling interests										(2,102)
Income tax										(24,826)
Net income (loss) attributable to XL Group plc									$	225,663
Ratios – P&C operations: (6)
Loss and loss expense ratio		67.0%		54.0%		63.1%
Underwriting expense ratio		30.9%		33.9%		31.8%
Combined ratio		97.9%		87.9%		94.9%

_______________

(1)       Operating expenses exclude Corporate operating expenses, shown separately.

(2)       The net results from P&C structured products include net investment income and interest expense of $18.4 million and $13.5 million, respectively.

(3)       Net fee income and other includes operating expenses from the Company's loss prevention consulting services business and expenses related to the cost of an endorsement facility with National Indemnity Company.

(4)       The Company records the income related to the alternative funds and to the private investment and operating fund affiliates on a one-month and three-month lag, respectively.

(5)       Interest expense excludes interest expense related to deposit liabilities recorded in the Insurance and Reinsurance segments.

(6)       Ratios are based on net premiums earned from P&C operations.

Six Months Ended June 30, 2012							Life
(U.S. dollars in thousands, except ratios)	Insurance		Reinsurance		Total P&C		Operations		Total
Gross premiums written	$	2,647,668	$	1,432,767	$	4,080,435	$	179,587	$	4,260,022
Net premiums written		1,980,793		1,329,713		3,310,506		164,119		3,474,625
Net premiums earned		1,893,350		865,520		2,758,870		164,143		2,923,013
Net losses and loss expenses		(1,266,969)		(413,451)		(1,680,420)		(252,457)		(1,932,877)
Acquisition costs		(251,540)		(175,967)		(427,507)		(15,581)		(443,088)
Operating expenses (1)		(377,593)		(80,738)		(458,331)		(5,436)		(463,767)
Underwriting profit (loss)	$	(2,752)	$	195,364	$	192,612	$	(109,331)	$	83,281
Net investment income		-		-		343,549		149,671		493,220
Net results from structured products (2)		11,866		(20,415)		(8,549)		-		(8,549)
Net fee income and other (3)		(3,867)		1,323		(2,544)		90		(2,454)
Net realized gains (losses) on investments						22,813		(14,403)		8,410
Contribution from P&C and Life Operations					$	547,881	$	26,027	$	573,908
Corporate & other:
Net realized & unrealized gains (losses) on derivative instruments										(3,598)
Net income (loss) from investment fund affiliates and operating affiliates (4)										61,319
Exchange gains (losses)										5,258
Corporate operating expenses										(94,321)
Interest expense (5)										(53,409)
Non-controlling interests										(40,011)
Income tax										(51,362)
Net income (loss) attributable to XL Group plc									$	397,784
Ratios – P&C operations: (6)
Loss and loss expense ratio		66.9%		47.8%		60.9%
Underwriting expense ratio		33.2%		29.6%		32.1%
Combined ratio		100.1%		77.4%		93.0%

_______________

(1)       Operating expenses exclude Corporate operating expenses, shown separately.

(2)       The net results from P&C structured products include net investment income and interest expense of $34.7 million and $43.2 million, respectively.

(3)       Net fee income and other includes operating expenses from the Company's loss prevention consulting services business.

(4)       The Company records the income related to the alternative funds and to the private investment and operating fund affiliates on a one-month and three-month lag, respectively.

(5)       Interest expense excludes interest expense related to deposit liabilities recorded in the Insurance and Reinsurance segments.

(6)       Ratios are based on net premiums earned from P&C operations.

Six Months Ended June 30, 2011							Life
(U.S. dollars in thousands, except ratios)	Insurance		Reinsurance		Total P&C		Operations		Total
Gross premiums written	$	2,512,379	$	1,349,184	$	3,861,563	$	197,940	$	4,059,503
Net premiums written		1,812,181		1,208,160		3,020,341		181,866		3,202,207
Net premiums earned		1,783,363		794,458		2,577,821		181,901		2,759,722
Net losses and loss expenses		(1,396,695)		(635,754)		(2,032,449)		(270,647)		(2,303,096)
Acquisition costs		(221,527)		(164,974)		(386,501)		(17,088)		(403,589)
Operating expenses (1)		(330,703)		(89,183)		(419,886)		(4,889)		(424,775)
Underwriting profit (loss)	$	(165,562)	$	(95,453)	$	(261,015)	$	(110,723)	$	(371,738)
Net investment income		-		-		379,618		159,033		538,651
Net results from structured products (2)		5,950		6,440		12,390		-		12,390
Net fee income and other (3)		(9,130)		1,385		(7,745)		137		(7,608)
Net realized gains (losses) on investments						(37,134)		(38,847)		(75,981)
Contribution from P&C and Life Operations					$	86,114	$	9,600	$	95,714
Corporate & other:
Net realized & unrealized gains (losses) on derivative instruments										(7,383)
Net income (loss) from investment fund affiliates and operating affiliates (4)										97,287
Exchange gains (losses)										(1,016)
Corporate operating expenses										(75,258)
Interest expense (5)										(83,498)
Non-controlling interests										(35,438)
Income tax										7,971
Net income (loss) attributable to XL Group plc									$	(1,621)
Ratios – P&C operations: (6)
Loss and loss expense ratio		78.3%		80.0%		78.8%
Underwriting expense ratio		31.0%		32.0%		31.3%
Combined ratio		109.3%		112.0%		110.1%

_______________

(1)       Operating expenses exclude Corporate operating expenses, shown separately.

(2)       The net results from P&C structured products include net investment income and interest expense of $38.1 million and $25.7 million, respectively.

(3)       Net fee income and other includes operating expenses from the Company's loss prevention consulting services business and expenses related to the cost of an endorsement facility with National Indemnity Company.

(4)       The Company records the income related to the alternative funds and to the private investment and operating fund affiliates on a one-month and three-month lag, respectively.

(5)       Interest expense excludes interest expense related to deposit liabilities recorded in the Insurance and Reinsurance segments.

(6)       Ratios are based on net premiums earned from P&C operations.

The following tables summarize the Company's net premiums earned by line of business:

Three Months Ended June 30, 2012						Life
(U.S. dollars in thousands)		Insurance		Reinsurance		Operations		Total
P&C Operations:
	Casualty - professional lines	$	330,876	$	53,303	$	-	$	384,179
	Casualty - other lines		167,562		76,842		-		244,404
	Property catastrophe		-		113,221		-		113,221
	Other property		124,893		145,025		-		269,918
	Marine, energy, aviation and satellite		143,981		35,627		-		179,608
	Other specialty lines (1)		190,169		-		-		190,169
	Other (2)		1,813		17,660		-		19,473
Total P&C Operations		$	959,294	$	441,678	$	-	$	1,400,972
Life Operations:
	Annuity	$	-	$	-	$	31,243	$	31,243
	Other Life		-		-		54,380		54,380
Total Life Operations		$	-	$	-	$	85,623	$	85,623
Total		$	959,294	$	441,678	$	85,623	$	1,486,595
Three Months Ended June 30, 2011
(U.S. dollars in thousands)
P&C Operations:
	Casualty - professional lines	$	322,654	$	51,915	$	-	$	374,569
	Casualty - other lines		172,246		68,920		-		241,166
	Property catastrophe		-		94,363		-		94,363
	Other property		117,088		135,255		-		252,343
	Marine, energy, aviation and satellite		128,358		30,436		-		158,794
	Other specialty lines (1)		165,027		-		-		165,027
	Other (2)		2,070		17,793		-		19,863
Total P&C Operations		$	907,443	$	398,682	$	-	$	1,306,125
Life Operations:
	Annuity	$	-	$	-	$	33,968	$	33,968
	Other Life		-		-		58,246		58,246
Total Life Operations		$	-	$	-	$	92,214	$	92,214
Total		$	907,443	$	398,682	$	92,214	$	1,398,339

_______________

(1)       Other specialty lines within the Insurance segment includes: environmental, programs, equine, warranty, fine art and specie, middle markets, political risk and trade credit, product recall, surety, inland marine and surplus lines.

(2)       Other includes whole account contracts, structured indemnity, internal reinsurance and other lines.

Six Months Ended June 30, 2012						Life
(U.S. dollars in thousands)		Insurance		Reinsurance		Operations		Total
P&C Operations:
	Casualty - professional lines	$	654,696	$	108,209	$	-	$	762,905
	Casualty - other lines		334,920		150,080		-		485,000
	Property catastrophe		-		216,146		-		216,146
	Other property		258,312		280,769		-		539,081
	Marine, energy, aviation and satellite		264,081		71,371		-		335,452
	Other specialty lines (1)		374,203		-		-		374,203
	Other (2)		7,138		38,945		-		46,083
Total P&C Operations		$	1,893,350	$	865,520	$	-	$	2,758,870
Life Operations:
	Annuity	$	-	$	-	$	62,700	$	62,700
	Other Life		-		-		101,443		101,443
Total P&C Operations		$	-	$	-	$	164,143	$	164,143
Total		$	1,893,350	$	865,520	$	164,143	$	2,923,013
Six Months Ended June 30, 2011
(U.S. dollars in thousands)
P&C Operations:
	Casualty - professional lines	$	638,297	$	105,632	$	-	$	743,929
	Casualty - other lines		328,950		119,963		-		448,913
	Property catastrophe		-		188,927		-		188,927
	Other property		224,009		271,498		-		495,507
	Marine, energy, aviation and satellite		253,893		68,864		-		322,757
	Other specialty lines (1)		333,693		-		-		333,693
	Other (2)		4,521		39,574		-		44,095
Total P&C Operations		$	1,783,363	$	794,458	$	-	$	2,577,821
Life Operations:
	Annuity	$	-	$	-	$	66,891	$	66,891
	Other Life		-		-		115,010		115,010
Total P&C Operations		$	-	$	-	$	181,901	$	181,901
Total		$	1,783,363	$	794,458	$	181,901	$	2,759,722

_______________

(1)       Other specialty lines within the Insurance segment includes: environmental, programs, equine, warranty, fine art and specie, middle markets, political risk and trade credit, product recall, surety, inland marine and surplus lines.

(2)       Other includes whole account contracts, structured indemnity, internal reinsurance and other lines.

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Derivative Instruments (Tables)

6 Months Ended

Jun. 30, 2012

Derivatives Disclosure [Abstract]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

		June 30, 2012								December 31, 2011
(U.S. dollars in thousands)			Asset Derivative Notional Amount		Asset Derivative Fair Value (1)		Liability Derivative Notional Amount		Liability Derivative Fair Value (1)		Asset Derivative Notional Amount		Asset Derivative Fair Value (1)		Liability Derivative Notional Amount		Liability Derivative Fair Value (1)
Derivatives designed as hedging instruments:
	Interest rate contracts (2)	$	156,254	$	116,881	$	-	$	-	$	156,271	$	109,761	$	-	$	-
	Foreign exchange contracts		1,932,505		57,315		724,842		(5,883)		2,033,428		25,387		457,892		(4,518)
Total derivatives designed as hedging instruments		$	2,088,759	$	174,196	$	724,842	$	(5,883)	$	2,189,699	$	135,148	$	457,892	$	(4,518)
Derivatives not designed as hedging instruments:
Investment Related Derivatives:
	Interest rate exposure	$	60,802	$	2,229	$	32,642	$	(163)	$	70,978	$	1,946	$	55,033	$	(43)
	Foreign exchange exposure		27,223		255		59,666		(754)		232,422		3,759		384,592		(11,737)
	Credit exposure		91,250		1,624		374,013		(15,015)		172,500		5,271		449,513		(13,986)
	Financial market exposure		43,578		718		15,476		(597)		23,874		615		14,321		-
Financial Operations Derivatives: (3)
	Credit exposure (2)		-		-		58,668		(3,626)		-		-		81,678		(10,288)
Other Non-Investment Derivatives:
	Guaranteed minimum income benefit contract		-		-		70,352		(21,404)		-		-		78,777		(22,490)
	Modified coinsurance funds withheld contract		73,929		-		-		-		77,200		-		-		-
Total derivatives not designed as hedging instruments		$	296,782	$	4,826	$	610,817	$	(41,559)	$	576,974	$	11,591	$	1,063,914	$	(58,544)

_______________

(1)       Derivative instruments in an asset or liability position are included within Other assets or Other liabilities, respectively, in the balance sheet on a net basis where the Company has both a legal right of offset and the intentions to settle the contracts on a net basis.

(2)       At June 30, 2012 and December 31, 2011, the Company held net cash collateral related to these derivative positions of $124.7 million and $77.1million, respectively. The collateral balance is included within Cash and cash equivalents and the corresponding liability to return the collateral has been offset against the derivative asset within the balance sheet as appropriate under the netting agreement.

(3)       Financial operations derivatives represent interests in variable interest entities as described in Note 10, “Variable Interest Entities.”

Gain (loss) recognized in income attributable to risk, hedged items [Text Block]

	Hedged Items - Amount of Gain/(Loss)
	Recognized in Income Attributable to Risk
							Ineffective
	Gain/(Loss)						Portion of
Derivatives Designated as Fair Value Hedges:	Recognized						Hedging
Three Months Ended June 30, 2012	in Income on		Deposit		Fixed Maturity		Relationship -
(U.S. dollars in thousands)	Derivative		Liabilities		Investments		Gain/(Loss)
Interest rate exposure	$	7,270
Foreign exchange exposure		7,297
Total	$	14,567	$	(9,789)	$	(6,972)	$	(2,194)
Three Months Ended June 30, 2011
(U.S. dollars in thousands)
Interest rate exposure	$	5,726
Foreign exchange exposure		(877)
Total	$	4,849	$	(6,672)	$	866	$	(957)
Six Months Ended June 30, 2012
(U.S. dollars in thousands)
Interest rate exposure	$	1,813
Foreign exchange exposure		(7,803)
Total	$	(5,990)	$	(6,182)	$	7,539	$	(4,633)
Six Months Ended June 30, 2011
(U.S. dollars in thousands)
Interest rate exposure	$	4,852
Foreign exchange exposure		(21,303)
Total	$	(16,451)	$	(4,291)	$	21,006	$	264

Schedule Of Settlement of Fair Values Hedges [Table Text Block]

	Fair Value Hedges - Notes				Fair Value Hedges - Deposit
	Payable and Debt				Liabilities
Settlement of Fair Value Hedges - Summary	June 30,				June 30,
(U.S. dollars in thousands, except years)	2012		2011			2012	2011
Cumulative reduction to interest expense	$	12,996	$	7,432	$	12,763	$	5,646
Remaining balance	$	8,628	$	14,192	$	136,722	$	143,839
Weighted average years remaining to maturity		2.2		2.9		32.4		35.0

Schedule of Derivative Instruments Designated as Hedges of the Net Investment in a Foreign Operation [Table Text Block]

Derivative Instruments Designated as Hedges of the	Three Months Ended				Six Months Ended
Net Investment in a Foreign Operation - Summary	June 30,				June 30,
(U.S. dollars in thousands)	2012		2011		2012		2011
Weighted average of U.S. dollar equivalent of foreign denominated net assets	$	1,872,407	$	1,656,083	$	1,882,904	$	1,542,979
Derivative gains (losses) (1)	$	56,777	$	(27,797)	$	18,905	$	(69,206)

_______________

(1)       Derivative gains (losses) from derivative instruments designated as hedges of the net investment in a foreign operation are recorded in the cumulative translation adjustment account within AOCI for each period.

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance (Not Formally Designated as Hedges) [Text Block]

Net Realized and Unrealized Gains (Losses)		Three Months Ended				Six Months Ended
on Derivative Instruments		June 30,				June 30,
(U.S. dollars in thousands)		2012		2011		2012		2011
Investment Related Derivatives:
	Interest rate exposure	$	(83)	$	(4,319)	$	617	$	(4,151)
	Foreign exchange exposure		683		11,014		329		17,451
	Credit exposure		6,323		(12,693)		2,624		(13,659)
	Financial market exposure		(5,969)		(32)		(2,025)		837
Financial Operations Derivatives:
	Credit exposure		-		124		143		306
Other Non-Investment Derivatives:
	Contingent credit facility		-		(2,053)		-		(4,083)
	Guaranteed minimum income benefit contract		(929)		(1,130)		1,086		1,179
	Modified coinsurance funds withheld contract		(2,131)		(904)		(1,739)		(5,527)
Total derivatives not designated as hedging instruments		$	(2,106)	$	(9,993)	$	1,035	$	(7,647)
Amount of gain (loss) recognized in income from ineffective portion of fair value hedges			(2,194)		(957)		(4,633)		264
Net realized and unrealized gains (losses) on derivative instruments		$	(4,300)	$	(10,950)	$	(3,598)	$	(7,383)

Schedule Of Financial Operations Derivatives Credit Exposure [Table Text Block]

Financial Operations Derivatives - Credit Exposure Summary:	June 30,		December 31,
(U.S. dollars in thousands, except term to maturity)	2012		2011
Principal outstanding	$	56,052	$	78,425
Interest outstanding		2,616		3,253
Aggregate outstanding exposure	$	58,668	$	81,678
Total liability recorded	$	3,626	$	10,288
Weighted average contractual term to maturity		4.8 years		5.0 years
Underlying obligations credit rating		BBB-		BB

Summary of Contingent Credit Features [Table Text Block

Contingent Credit Features - Summary:	June 30,		December 31,
(U.S. dollars in thousands)	2012		2011
Aggregate fair value of derivative agreements with downgrade provisions in a net liability position	$	10,152	$	15,763
Collateral posted to counterparty	$	-	$	809

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2012

Commitments And Contingencies Disclosure Abstract

Commitments and Contingencies Disclosure [Text Block]

12. Commitments and Contingencies

(a) Financial Guarantee Exposures

Financial Guarantee Exposure Summary	June 30,		December 31,
(U.S. dollars in thousands except number of contracts and term to maturity)	2012		2011
Opening number of financial guarantee contracts		4		37
Number of financial guarantee contracts matured, prepaid or commuted during the period		-		(33)
Closing number of financial guarantee contracts		4		4
Principal outstanding	$	115,464	$	115,464
Interest outstanding	$	-	$	-
Aggregate exposure outstanding	$	115,464	$	115,464
Total gross claim liability recorded	$	1,399	$	1,399
Total unearned premiums and fees recorded	$	352	$	425
Weighted average contractual term to maturity in years		25.9		26.7

The Company's outstanding financial guarantee contracts at June 30, 2012 provide credit support for a variety of collateral types with the exposures comprised of (i) a $108.3 million notional financial guarantee on three notes backed by zero coupon long dated bonds and bank perpetual securities, including some issued by European financials; and (ii) a $7.2 million notional financial guarantee relating to future scheduled repayments on a government-subsidized housing project. At June 30, 2012, there were no reported events of default on these obligations.

Surveillance procedures to track and monitor credit deteriorations in the insured financial obligations are performed by the primary obligors for each transaction on the Company's behalf. Information regarding the performance status and updated exposure values is provided to the Company on a quarterly basis and evaluated by management in recording claims reserves.

(b) Claims and Other Litigation

The Company and its subsidiaries are subject to litigation and arbitration in the normal course of business. These lawsuits and arbitrations principally involve claims on policies of insurance and contracts of reinsurance and are typical for the Company and for the property and casualty insurance and reinsurance industry in general. Such legal proceedings are considered in connection with the Company's loss and loss expense reserves. Reserves in varying amounts may or may not be established in respect of particular claims proceedings based on many factors, including the legal merits thereof. In addition to litigation relating to insurance and reinsurance claims, the Company and its subsidiaries are subject to lawsuits and regulatory actions in the normal course of business that do not arise from or directly relate to claims on insurance or reinsurance policies. This category of business litigation typically involves, among other things, allegations of underwriting errors or misconduct, employment claims, regulatory activity, shareholder disputes or disputes arising from business ventures. The status of these legal actions is actively monitored by management.

Legal actions are subject to inherent uncertainties, and future events could change management's assessment of the probability or estimated amount of potential losses from pending or threatened legal actions. Based on available information, it is the opinion of management that the ultimate resolution of pending or threatened legal actions, both individually and in the aggregate, will not result in losses having a material effect on the Company's financial position or liquidity at June 30, 2012.

If management believes that, based on available information, it is at least reasonably possible that a material loss (or additional material loss in excess of any accrual) will be incurred in connection with any legal actions or claims, the Company discloses an estimate of the possible loss or range of loss, either individually or in the aggregate, as appropriate, if such an estimate can be made, or discloses that an estimate cannot be made. Based on the Company's assessment at June 30, 2012, no such disclosures are considered necessary.

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Notes Payable and Debt and Financing Arrangements

6 Months Ended

Jun. 30, 2012

Debt Disclosure Abstract

Debt Disclosure [Text Block]

8. Notes Payable and Debt and Financing Arrangements

(a) Notes Payable and Debt

All outstanding debt of the Company at June 30, 2012 and December 31, 2011 was issued by XLIT Ltd. (“XL-Cayman”) except for the $600 million par value 6.5% Guaranteed Senior Notes (the “XLCFE Notes”), which were issued by XL Capital Finance (Europe) plc (“XLCFE”) and were repaid at maturity on January 15, 2012. Both XL-Cayman and XLCFE are wholly-owned subsidiaries of XL Group plc. The XLCFE Notes were fully and unconditionally guaranteed by XL Company Switzerland GmbH. XL-Cayman's outstanding debt is fully and unconditionally guaranteed by XL-Ireland. The Company's ability to obtain funds from its subsidiaries to satisfy any of its obligations under guarantees is subject to certain contractual restrictions, applicable laws and statutory requirements of the various countries in which the Company operates, including, among others, Bermuda, the United States, Ireland, Switzerland and the U.K. Aggregated required statutory capital and surplus for the principal operating subsidiaries of the Company was $6.7 billion at December 31, 2011.

(b) Letter of Credit Facilities and Other Sources of Collateral

The Company has several letter of credit facilities provided on a syndicated and bilateral basis from commercial banks. These facilities are utilized primarily to support non-admitted insurance and reinsurance operations in the U.S. and capital requirements at Lloyd's. The Company's letter of credit facilities and revolving credit facilities at June 30, 2012 and December 31, 2011 were as follows:

Letter of Credit Summary:	June 30,		December 31,
(U.S. dollars in thousands except percentages)	2012 (1)		2011 (1)
Revolving credit facility (2)	$	1,000,000	$	1,000,000
Available letter of credit facilities - commitments (3)	$	4,000,000	$	4,000,000
Available letter of credit facilities - in use	$	1,728,948	$	1,871,192
Collateralized by certain assets of the Company's investment portfolio		93.2%		93.8%

_______________

(1)       At June 30, 2012 and December 31, 2011,there were five available letter of credit facilities.

(2)       At June 30, 2012 and December 31, 2011, the revolving credit facility was unutilized.

(3)       The Company has the option to increase the size of the March 2011 Credit Agreement by an additional $500 million and the size of the facilities under the December 2011 Credit Agreements by an additional $500 million across both such facilities.

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Commitments and Contingencies (Details) - Financial and other guarantee exposures (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2012 contracts	Dec. 31, 2011 contracts
Financial Guarantee Member
Guarantor Obligations [Line Items]
Number of financial guarantee contracts at January 1	4	37
Number of financial guarantee contracts matured, prepaid or commuted during the period	0	(33)
Number of financial guarantee contracts at December 31	4	4
Principal outstanding	$ 115,464	$ 115,464
Interest outstanding	0	0
Aggregate outstanding exposure	115,464	115,464
Total gross claim liability recorded	1,399	1,399
Total unearned premiums and fees recorded	352	425
Weighted average contractual term to maturity	25 years 10 months 24 days	26 years 8 months 12 days
Financial Guarantee Related to Securities Including Some Issued By European Financials [Member]
Guarantor Obligations [Line Items]
Number of financial guarantee contracts at December 31	3
Aggregate outstanding exposure	108,300
Financial Guarantee Related to Future Scheduled Repayments On Government Subsidized Housing Project [Member]
Guarantor Obligations [Line Items]
Aggregate outstanding exposure	$ 7,200

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Derivative Instruments

6 Months Ended

Jun. 30, 2012

Derivatives Disclosure [Abstract]

Derivative Instruments and Hedging Activities Disclosure [Text Block]

6. Derivative Instruments

The Company enters into derivative instruments for both risk management and investment purposes. The Company is exposed to potential loss from various market risks, and manages its market risks based on guidelines established by management and the Risk and Finance Committee of the Board of Directors of XL Group plc. The Company recognizes all derivatives as either assets or liabilities in the balance sheet and measures those instruments at fair value, with the changes in fair value of derivatives shown in the consolidated statement of income as “net realized and unrealized gains and losses on derivative instruments” unless the derivatives are designated as hedging instruments. The accounting for derivatives that are designated as hedging instruments is described in Item 8, Note 2(h), “Significant Accounting Policies – Derivative Instruments,” to the Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2011.

The following table summarizes information about the location and gross amounts of derivative fair values contained in the consolidated balance sheet at June 30, 2012 and December 31, 2011:

		June 30, 2012								December 31, 2011
(U.S. dollars in thousands)			Asset Derivative Notional Amount		Asset Derivative Fair Value (1)		Liability Derivative Notional Amount		Liability Derivative Fair Value (1)		Asset Derivative Notional Amount		Asset Derivative Fair Value (1)		Liability Derivative Notional Amount		Liability Derivative Fair Value (1)
Derivatives designed as hedging instruments:
	Interest rate contracts (2)	$	156,254	$	116,881	$	-	$	-	$	156,271	$	109,761	$	-	$	-
	Foreign exchange contracts		1,932,505		57,315		724,842		(5,883)		2,033,428		25,387		457,892		(4,518)
Total derivatives designed as hedging instruments		$	2,088,759	$	174,196	$	724,842	$	(5,883)	$	2,189,699	$	135,148	$	457,892	$	(4,518)
Derivatives not designed as hedging instruments:
Investment Related Derivatives:
	Interest rate exposure	$	60,802	$	2,229	$	32,642	$	(163)	$	70,978	$	1,946	$	55,033	$	(43)
	Foreign exchange exposure		27,223		255		59,666		(754)		232,422		3,759		384,592		(11,737)
	Credit exposure		91,250		1,624		374,013		(15,015)		172,500		5,271		449,513		(13,986)
	Financial market exposure		43,578		718		15,476		(597)		23,874		615		14,321		-
Financial Operations Derivatives: (3)
	Credit exposure (2)		-		-		58,668		(3,626)		-		-		81,678		(10,288)
Other Non-Investment Derivatives:
	Guaranteed minimum income benefit contract		-		-		70,352		(21,404)		-		-		78,777		(22,490)
	Modified coinsurance funds withheld contract		73,929		-		-		-		77,200		-		-		-
Total derivatives not designed as hedging instruments		$	296,782	$	4,826	$	610,817	$	(41,559)	$	576,974	$	11,591	$	1,063,914	$	(58,544)

_______________

(1)       Derivative instruments in an asset or liability position are included within Other assets or Other liabilities, respectively, in the balance sheet on a net basis where the Company has both a legal right of offset and the intentions to settle the contracts on a net basis.

(2)       At June 30, 2012 and December 31, 2011, the Company held net cash collateral related to these derivative positions of $124.7 million and $77.1million, respectively. The collateral balance is included within Cash and cash equivalents and the corresponding liability to return the collateral has been offset against the derivative asset within the balance sheet as appropriate under the netting agreement.

(3)       Financial operations derivatives represent interests in variable interest entities as described in Note 10, “Variable Interest Entities.”

(a) Derivative Instruments Designated as Fair Value Hedges

The Company designates certain of its derivative instruments as fair value hedges or cash flow hedges and formally and contemporaneously documents all relationships between the hedging instruments and hedged items and links the hedging derivative to specific assets and liabilities. The Company assesses the effectiveness of the hedge both at inception and on an on-going basis, and determines whether the hedge is highly effective in offsetting changes in fair value or cash flows of the linked hedged item.

At June 30, 2012 and 2011, a portion of the Company's liabilities are hedged against changes in the applicable designated benchmark interest rate. Interest rate swaps are also used to hedge the changes in fair value of certain fixed rate liabilities and fixed income securities due to changes in the designated benchmark interest rate. In addition, the Company utilizes foreign exchange contracts to hedge the fair value of certain fixed income securities as well as to hedge certain net investments in foreign operations.

The following table provides the total impact on earnings relating to derivative instruments formally designated as fair value hedges along with the impacts of the related hedged items for the three and six months ended June 30, 2012 and 2011:

	Hedged Items - Amount of Gain/(Loss)
	Recognized in Income Attributable to Risk
							Ineffective
	Gain/(Loss)						Portion of
Derivatives Designated as Fair Value Hedges:	Recognized						Hedging
Three Months Ended June 30, 2012	in Income on		Deposit		Fixed Maturity		Relationship -
(U.S. dollars in thousands)	Derivative		Liabilities		Investments		Gain/(Loss)
Interest rate exposure	$	7,270
Foreign exchange exposure		7,297
Total	$	14,567	$	(9,789)	$	(6,972)	$	(2,194)
Three Months Ended June 30, 2011
(U.S. dollars in thousands)
Interest rate exposure	$	5,726
Foreign exchange exposure		(877)
Total	$	4,849	$	(6,672)	$	866	$	(957)
Six Months Ended June 30, 2012
(U.S. dollars in thousands)
Interest rate exposure	$	1,813
Foreign exchange exposure		(7,803)
Total	$	(5,990)	$	(6,182)	$	7,539	$	(4,633)
Six Months Ended June 30, 2011
(U.S. dollars in thousands)
Interest rate exposure	$	4,852
Foreign exchange exposure		(21,303)
Total	$	(16,451)	$	(4,291)	$	21,006	$	264

The gains (losses) recorded on both the derivatives instruments and specific items designated as being hedged as part of the fair value hedging relationships outlined above are recorded through Net realized and unrealized gains (losses) on derivative instruments in the income statement along with any associated ineffectiveness in the relationships. In addition, the periodic coupon settlements relating to the interest rate swaps are recorded as adjustments to net investment income for the hedges of fixed maturity investments and as adjustments to interest expense for the hedges of deposit liabilities and notes payable and debt.

The periodic coupon settlements also resulted in decreases to Interest expense of $2.5 million and $4.9 million for the three and six months ended June 30, 2012, respectively, and decreases to Interest expense of $2.6 million and $5.1 million for the three and six months ended June 30, 2011, respectively.

Settlement of Fair Value Hedges

During the year ended December 31, 2010, the Company settled the interest rate contracts designated as fair value hedges of certain of the Company's notes payable and debt and also settled three interest rate contracts designated as fair value hedges of certain of the Company's deposit liability contracts. The cumulative increase recorded to the carrying value of the hedged notes payable and debt of $21.6 million, and the deposit liability contracts of $149.5 million, representing the effective portion of the hedging relationship, is amortized through interest expense over the remaining terms of the debt and deposit liability contracts. A summary of the fair value hedges that were settled in 2010 and their results during the six months ended June 30, 2012 and 2011is shown below:

	Fair Value Hedges - Notes				Fair Value Hedges - Deposit
	Payable and Debt				Liabilities
Settlement of Fair Value Hedges - Summary	June 30,				June 30,
(U.S. dollars in thousands, except years)	2012		2011			2012	2011
Cumulative reduction to interest expense	$	12,996	$	7,432	$	12,763	$	5,646
Remaining balance	$	8,628	$	14,192	$	136,722	$	143,839
Weighted average years remaining to maturity		2.2		2.9		32.4		35.0

In July 2012, the Company settled two interest rate contracts designated as fair value hedges of certain of the Company's deposit liability contracts. At settlement, the cumulative increase recorded to the carrying value of the hedged deposit liability contracts was $83.7 million. This amount will be amortized, through interest expense, over the remaining terms of the deposit liability contracts. The weighted average term remaining to maturity for these contracts was16.1 years.

(b) Derivative Instruments Designated as Hedges of the Net Investment in a Foreign Operation

The Company utilizes foreign exchange contracts to hedge the fair value of certain net investments in foreign operations. During the six months ended June 30, 2012 and 2011, the Company entered into foreign exchange contracts that were formally designated as hedges of investments in foreign subsidiaries, the majority of which have functional currencies of either U.K. sterling or the Euro. There was no ineffectiveness in these transactions.

The following table provides the weighted average U.S. dollar equivalent of foreign denominated net assets that were hedged and the resultant gain (loss) that was recorded in the cumulative translation adjustment account within AOCI for the three and six months ended June 30, 2012 and 2011.

Derivative Instruments Designated as Hedges of the	Three Months Ended				Six Months Ended
Net Investment in a Foreign Operation - Summary	June 30,				June 30,
(U.S. dollars in thousands)	2012		2011		2012		2011
Weighted average of U.S. dollar equivalent of foreign denominated net assets	$	1,872,407	$	1,656,083	$	1,882,904	$	1,542,979
Derivative gains (losses) (1)	$	56,777	$	(27,797)	$	18,905	$	(69,206)

_______________

(1)       Derivative gains (losses) from derivative instruments designated as hedges of the net investment in a foreign operation are recorded in the cumulative translation adjustment account within AOCI for each period.

(c) Derivative Instruments Not Formally Designated As Hedging Instruments

The following table provides the total impact on earnings relating to derivative instruments not formally designated as hedging instruments under authoritative accounting guidance and from the ineffective portion of fair value hedges. The impacts are all recorded through Net realized and unrealized gains (losses) on derivatives in the income statement for the three and six months ended June 30, 2012 and 2011:

Net Realized and Unrealized Gains (Losses)		Three Months Ended				Six Months Ended
on Derivative Instruments		June 30,				June 30,
(U.S. dollars in thousands)		2012		2011		2012		2011
Investment Related Derivatives:
	Interest rate exposure	$	(83)	$	(4,319)	$	617	$	(4,151)
	Foreign exchange exposure		683		11,014		329		17,451
	Credit exposure		6,323		(12,693)		2,624		(13,659)
	Financial market exposure		(5,969)		(32)		(2,025)		837
Financial Operations Derivatives:
	Credit exposure		-		124		143		306
Other Non-Investment Derivatives:
	Contingent credit facility		-		(2,053)		-		(4,083)
	Guaranteed minimum income benefit contract		(929)		(1,130)		1,086		1,179
	Modified coinsurance funds withheld contract		(2,131)		(904)		(1,739)		(5,527)
Total derivatives not designated as hedging instruments		$	(2,106)	$	(9,993)	$	1,035	$	(7,647)
Amount of gain (loss) recognized in income from ineffective portion of fair value hedges			(2,194)		(957)		(4,633)		264
Net realized and unrealized gains (losses) on derivative instruments		$	(4,300)	$	(10,950)	$	(3,598)	$	(7,383)

The Company's objectives in using these derivatives are explained below.

(d)(i) Investment Related Derivatives

The Company, either directly or through its investment managers, may use derivative instruments within its investment portfolio, including interest rate swaps, inflation swaps, credit derivatives (single name and index credit default swaps), options, forward contracts and financial futures (foreign exchange, bond and stock index futures), primarily as a means of economically hedging exposures to interest rate, credit spread, equity price changes and foreign currency risk or, in limited instances, for investment purposes. The Company is exposed to credit risk in the event of non-performance by the counterparties under any swap contracts, although the Company generally seeks to use credit support arrangements with counterparties to help manage this risk.

Investment Related Derivatives – Interest Rate Exposure

The Company utilizes risk management and overlay strategies that incorporate the use of derivative financial instruments, primarily to manage its fixed income portfolio duration and exposure to interest rate risks associated with primarily those assets and liabilities related to certain legacy other financial lines and structured indemnity transactions. The Company uses interest rate swaps to convert certain liabilities from a fixed rate to a variable rate of interest and may also use them to convert a variable rate of interest from one basis to another.

Investment Related Derivatives – Foreign Exchange Exposure

The Company has exposure to foreign currency exchange rate fluctuations through its operations and in its investment portfolio.The Company uses foreign exchange contracts to manage its exposure to the effects of fluctuating foreign currencies on the value of certain of its foreign currency fixed maturities primarily within its Life operations portfolio. These contracts are not designated as specific hedges for financial reporting purposes and, therefore, realized and unrealized gains and losses on these contracts are recorded in income in the period in which they occur. These contracts generally have maturities of twelve months or less.

In addition, certain of the Company's investment managers may, subject to investment guidelines, enter into forward contracts where potential gains may exist.

Investment Related Derivatives – Credit Exposure

Credit derivatives may be purchased within the Company's investment portfolio in the form of single name and basket credit default swaps, which are used to mitigate credit exposure through a reduction in credit spread duration (i.e., macro credit strategies rather than single-name credit hedging) or exposure to selected issuers, including issuers that are not held in the underlying bond portfolio.

Investment Related Derivatives – Financial Market Exposure

Stock index futures may be purchased within the Company's investment portfolio in order to create synthetic equity exposure and to add value to the portfolio with overlay strategies where market inefficiencies are believed to exist. From time to time, the Company may enter into other financial market exposure derivative contracts on various indices including, but not limited to, inflation and commodity contracts.

(d)(ii) Financial Operations Derivatives – Credit Exposure

At June 30, 2012 and December 31, 2011, the Company held two credit derivative exposures that were written as part of the Company's previous financial lines business and are outside of the Company's investment portfolio: one provides credit protection on the senior tranches of a structured finance transaction; the other is a European project finance loan participation. An aggregate summary of these credit derivative exposures at June 30, 2012 and December 31, 2011 is as follows:

Financial Operations Derivatives - Credit Exposure Summary:	June 30,		December 31,
(U.S. dollars in thousands, except term to maturity)	2012		2011
Principal outstanding	$	56,052	$	78,425
Interest outstanding		2,616		3,253
Aggregate outstanding exposure	$	58,668	$	81,678
Total liability recorded	$	3,626	$	10,288
Weighted average contractual term to maturity		4.8 years		5.0 years
Underlying obligations credit rating		BBB-		BB

The credit protection related to the structured finance transaction is a credit default swap that was executed in 2000. The underlying collateral is predominantly securitized pools of leveraged loans and bonds. In the second quarter of 2012, the Company's exposure to this transaction was reduced by $23.0 million mainly due to principal pay downs. Management continues to monitor the underlying performance. The European project finance loan participation benefits from an 80% deficiency guarantee from the German state and federal governments.

At June 30, 2012 and December 31, 2011, there were no reported events of default on these obligations. Credit derivatives are recorded at fair value based upon prices received from the investment bank counterparties and corroborated by using models developed by the Company. Although the Company does not have access to the specific unobservable inputs that may have been used in the value provided by the counterparties, it expects that the significant inputs considered would include changes in interest rates, future default rates, credit spreads, changes in credit quality, future expected recovery rates and other market factors. The change resulting from movements in credit and credit quality spreads is unrealized as the credit derivatives are not traded to realize this resultant value.

(d)(iii) Other Non-Investment Derivatives

The Company also has derivatives embedded in certain reinsurance contracts. For a particular life reinsurance contract, the Company pays the ceding company a fixed amount equal to the estimated present value of the excess of guaranteed benefit over the account balance upon the policyholder's election to take the income benefit. The fair value of this derivative is determined based on the present value of expected cash flows. In addition, the Company has modified coinsurance and funds withheld reinsurance agreements that provide for a return based on a portfolio of fixed income securities. As such, the agreements contain embedded derivatives. The embedded derivative is bifurcated from the funds withheld balance and recorded at fair value with changes in fair value recognized in earnings through Net realized and unrealized gains and losses on derivative instruments.

(e) Contingent Credit Features

Certain derivatives agreements entered into by the Company or its subsidiaries contain rating downgrade provisions that permit early termination of the agreement by the counterparty if collateral is not posted following failure to maintain certain credit ratings from one or more of the principal credit rating agencies. If the Company were required to early terminate such agreements due to a rating downgrade, it could potentially be in a net liability position at the time of settlement. The aggregate fair value of all derivatives agreements containing such rating downgrade provisions that were in a liability position and the collateral posted under any of these agreements as of June 30, 2012 and December 31, 2011 were as follows:

Contingent Credit Features - Summary:	June 30,		December 31,
(U.S. dollars in thousands)	2012		2011
Aggregate fair value of derivative agreements with downgrade provisions in a net liability position	$	10,152	$	15,763
Collateral posted to counterparty	$	-	$	809

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Share Capital

6 Months Ended

Jun. 30, 2012

Stockholders Equity Note Abstract

Shareholders Equity And Share Based Payments Text Block

7. Share Capital

(a) Authorized and Issued

Ordinary Share Buybacks

On February 27, 2012, the Company announced that its Board of Directors approved a share buyback program, authorizing the Company to purchase up to $750 million of its ordinary shares.This authorization replaced the approximately $190 million remaining under the share buyback program that was authorized in November 2010 as described in further detail in Item 8, Note 18, “Share Capital,” to the Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2011. During the three months ended March 31, 2012 and the three months ended June 30, 2012, the Company purchased and canceled 4.7 million and6.1 million ordinary sharesunder the new program for $100.0 million and $125.0 million, respectively. All share buybacks were carried out by way of redemption in accordance with Irish law and the Company's constitutional documents. All shares so redeemed were canceled upon redemption. At June 30, 2012, $525.0 million remained available for purchase under the new program.

(b) Stock Plans

The Company's performance incentive programs provide for grants of stock options, restricted stock, restricted stock units and performance units and stock appreciation rights. Share based compensation granted by the Company generally contains a vesting period of three or four years, and certain awards also contain performance conditions. The Company records compensation expense related to each award over its vesting period incorporating the best estimate of the expected outcome of performance conditions where applicable. Compensation expense is generally recorded on a straight line basis over the vesting period of an award. See Item 8, Note 18, “Share Capital,” to the Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2011 for further information on the Company's performance incentive programs and associated accounting.

During the six months endedJune 30, 2012, the Company granted approximately 1.2 million stock options with a weighted-average grant date fair value of $7.62 per option. The fair value of the options issued was estimated on the date of grant using the Black-Scholes option pricing model using the following weighted average assumptions:

Dividend yield	1.90	%
Risk free interest rate	1.16	%
Volatility	46.0	%
Expected lives	6.0	years

During the six months endedJune 30, 2012, the Company granted approximately 0.3 million restricted stock awards to certain employees and directors of the Company and its subsidiaries with an aggregate grant date fair value of approximately $6.8 million. The award recipients generally have the rights and privileges of a shareholder as to the restricted stock, including the right to receive dividends and the right to vote such restricted stock.The recipients are not entitled to receive delivery of a stock certificate prior to vesting nor may any restricted stock be sold, transferred, pledged, or otherwise disposed of prior to the satisfaction of all vesting requirements.

During the six months endedJune 30, 2012, the Company granted approximately 1.3 million restricted stock units to certain employees of the Company and its subsidiaries with an aggregate grant date fair value of approximately $26.2 million. Each restricted stock unit represents the Company's obligation to deliver to the holder one ordinary share upon satisfaction of the three year vesting term. Restricted stock units are granted at the closing market price on the day of grant and entitle the holder to receive dividends declared and paid in the form of additional ordinary shares contingent upon vesting.

During the six months endedJune 30, 2012, the Company granted approximately 1.5 million performance units (representing a potential maximum share payout of approximately 3.0million ordinary shares) to certain employees with an aggregate grant date fair value of approximately $29.2 million. The performance units vest after three years, subject to the achievement of stated performance metrics, and entitle the holder to ordinary shares of the Company. There are no dividend rights associated with the performance units. Each grant of performance units has a target number of shares, with final payouts ranging from 0% to 200% of the grant amount depending upon a combination of corporate and business segment performance along with each employee's continued service through the vest date. Performance targets are based on relative and absolute financial performance metrics.

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Related Party Transactions

6 Months Ended

Jun. 30, 2012

Related Party Transactions Abstract

Related Party Transactions Disclosure [Text Block]

9. Related Party Transactions

At June 30, 2012, the Company owned minority stakes in four independent investment management companies (“Investment Manager Affiliates”) that are actively managing client capital and seeking growth opportunities. The Company seeks to develop relationships with specialty investment management organizations, generally acquiring an equity interest in the business. The Company also invests in certain of the funds and limited partnerships and other legal entities managed by these affiliates and through these funds and partnerships pays management and performance fees to the Company's Investment Manager Affiliates.

In the normal course of business, the Company enters into certain quota share reinsurance contracts with a subsidiary of one of its other strategic affiliates, ARX Holding Corporation. During the six months ended June 30, 2012 and 2011, these contracts resulted in reported net premiums written, net reported claims and reported acquisition costs as summarized below. Management believes that these transactions are conducted at market rates consistent with negotiated arms-length contracts.

	Three Months Ended				Six Months Ended
ARX Holding Corporation	June 30,				June 30,
(U.S. dollars in thousands)	2012		2011		2012		2011
Reported net premiums written	$	10,549	$	8,713	$	26,196	$	22,772
Net losses incurred		7,862		5,570		15,823		13,261
Reported acquisition costs		6,136		5,218		12,613		11,067

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Segment Information (Details) - Narrative (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2012 segments		Jun. 30, 2011
Segment Reporting Information [Line Items]
Number of Operating Segments					3
Net results from structured products	$ (13,866)	[1]	$ 4,916	[1]	$ (8,549)	[1]	$ 12,390	[1]
Total P And C Segment [Member]
Segment Reporting Information [Line Items]
Net results from structured products	(13,866)	[1]	4,916	[1]	(8,549)	[1]	12,390	[1]
Total P And C Segment [Member] | Net Investment Income [Member]
Segment Reporting Information [Line Items]
Net results from structured products	17,400		18,400		34,700	[1]	38,100
Total P And C Segment [Member] | Interest Expense [Member]
Segment Reporting Information [Line Items]
Net results from structured products	$ (31,300)		$ (13,500)		$ (43,200)		$ (25,700)

[1] The net results from P&C structured products include net investment income and interest expense.

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Derivative Instruments (Details) - Summary of financial operations derivatives credit exposure (USD $)			12 Months Ended		3 Months Ended	6 Months Ended
	Jun. 30, 2012	Dec. 31, 2010	Dec. 31, 2011 Credit Exposure [Member] Standard Poors BB Rating Member	Jun. 30, 2012 Credit Exposure [Member] Standard Poors BB Rating Member contracts	Jun. 30, 2012 Credit Exposure [Member] Standard Poors BB Rating Member Structured Finance [Member] contracts	Jun. 30, 2012 Credit Exposure [Member] Standard Poors BB Rating Member Project Finance Loan Participation [Member] contracts	Jun. 30, 2012 Credit Exposure [Member] Standard Poors BBB Minus Rating
Credit Derivatives [Line Items]
Principal outstanding			$ 78,425,000				$ 56,052,000
Interest outstanding			3,253,000				2,616,000
Aggregate outstanding exposure			81,678,000				58,668,000
Total liability recorded	10,152,000	15,763,000	10,288,000				3,626,000
Weighted average years to maturity			5 years				4 years 9 months 18 days
Number of derivatives held and other disclosures:
Number of instruments held				2	1	1
Deficiency guarantee from German state and federal governments (percentage)						80.00%
Reduction in exposure					$ 23,000,000

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Segment Information (Tables)

6 Months Ended

Jun. 30, 2012

Segment Reporting Abstract

Schedule of Segment Reporting Information, by Segment [Table Text Block]

Three Months Ended June 30, 2012							Life
(U.S. dollars in thousands, except ratios)	Insurance		Reinsurance		Total P&C		Operations		Total
Gross premiums written	$	1,311,034	$	452,417	$	1,763,451	$	92,904	$	1,856,355
Net premiums written		944,267		403,011		1,347,278		85,623		1,432,901
Net premiums earned		959,294		441,678		1,400,972		85,623		1,486,595
Net losses and loss expenses		(635,284)		(191,071)		(826,355)		(131,150)		(957,505)
Acquisition costs		(123,284)		(87,723)		(211,007)		(7,930)		(218,937)
Operating expenses (1)		(192,247)		(41,991)		(234,238)		(2,829)		(237,067)
Underwriting profit (loss)	$	8,479	$	120,893	$	129,372	$	(56,286)	$	73,086
Net investment income		-		-		170,581		74,645		245,226
Net results from structured products (2)		9,047		(22,913)		(13,866)		-		(13,866)
Net fee income and other (3)		(1,847)		990		(857)		42		(815)
Net realized gains (losses) on investments						(2,154)		(10,239)		(12,393)
Contribution from P&C and Life Operations					$	283,076	$	8,162	$	291,238
Corporate & other:
Net realized & unrealized gains (losses) on derivative instruments										(4,300)
Net income (loss) from investment fund affiliates and operating affiliates (4)										25,658
Exchange gains (losses)										17,976
Corporate operating expenses										(50,061)
Interest expense (5)										(26,089)
Non-controlling interests										(3,454)
Income tax										(29,812)
Net income (loss) attributable to XL Group plc									$	221,156
Ratios – P&C operations: (6)
Loss and loss expense ratio		66.2%		43.3%		59.0%
Underwriting expense ratio		32.9%		29.3%		31.8%
Combined ratio		99.1%		72.6%		90.8%

_______________

(1)       Operating expenses exclude Corporate operating expenses, shown separately.

(2)       The net results from P&C structured products include net investment income and interest expense of $17.4 million and $31.3 million, respectively.

(3)       Net fee income and other includes operating expenses from the Company's loss prevention consulting services business.

(4)       The Company records the income related to the alternative funds and to the private investment and operating fund affiliates on a one-month and three-month lag, respectively.

(5)       Interest expense excludes interest expense related to deposit liabilities recorded in the Insurance and Reinsurance segments.

(6)       Ratios are based on net premiums earned from P&C operations.

Three Months Ended June 30, 2011							Life
(U.S. dollars in thousands, except ratios)	Insurance		Reinsurance		Total P&C		Operations		Total
Gross premiums written	$	1,290,030	$	472,413	$	1,762,443	$	100,281	$	1,862,724
Net premiums written		893,191		412,868		1,306,059		92,194		1,398,253
Net premiums earned		907,443		398,682		1,306,125		92,214		1,398,339
Net losses and loss expenses		(608,182)		(215,402)		(823,584)		(137,416)		(961,000)
Acquisition costs		(113,883)		(91,448)		(205,331)		(9,768)		(215,099)
Operating expenses (1)		(166,608)		(43,553)		(210,161)		(2,723)		(212,884)
Underwriting profit (loss)	$	18,770	$	48,279	$	67,049	$	(57,693)	$	9,356
Net investment income		-		-		196,053		82,057		278,110
Net results from structured products (2)		2,690		2,226		4,916		-		4,916
Net fee income and other (3)		(3,218)		(9)		(3,227)		96		(3,131)
Net realized gains (losses) on investments						(10,248)		704		(9,544)
Contribution from P&C and Life Operations					$	254,543	$	25,164	$	279,707
Corporate & other:
Net realized & unrealized gains (losses) on derivative instruments										(10,950)
Net income (loss) from investment fund affiliates and operating affiliates (4)										56,501
Exchange gains (losses)										8,498
Corporate operating expenses										(39,566)
Interest expense (5)										(41,599)
Non-controlling interests										(2,102)
Income tax										(24,826)
Net income (loss) attributable to XL Group plc									$	225,663
Ratios – P&C operations: (6)
Loss and loss expense ratio		67.0%		54.0%		63.1%
Underwriting expense ratio		30.9%		33.9%		31.8%
Combined ratio		97.9%		87.9%		94.9%

_______________

(1)       Operating expenses exclude Corporate operating expenses, shown separately.

(2)       The net results from P&C structured products include net investment income and interest expense of $18.4 million and $13.5 million, respectively.

(3)       Net fee income and other includes operating expenses from the Company's loss prevention consulting services business and expenses related to the cost of an endorsement facility with National Indemnity Company.

(4)       The Company records the income related to the alternative funds and to the private investment and operating fund affiliates on a one-month and three-month lag, respectively.

(5)       Interest expense excludes interest expense related to deposit liabilities recorded in the Insurance and Reinsurance segments.

(6)       Ratios are based on net premiums earned from P&C operations.

Six Months Ended June 30, 2012							Life
(U.S. dollars in thousands, except ratios)	Insurance		Reinsurance		Total P&C		Operations		Total
Gross premiums written	$	2,647,668	$	1,432,767	$	4,080,435	$	179,587	$	4,260,022
Net premiums written		1,980,793		1,329,713		3,310,506		164,119		3,474,625
Net premiums earned		1,893,350		865,520		2,758,870		164,143		2,923,013
Net losses and loss expenses		(1,266,969)		(413,451)		(1,680,420)		(252,457)		(1,932,877)
Acquisition costs		(251,540)		(175,967)		(427,507)		(15,581)		(443,088)
Operating expenses (1)		(377,593)		(80,738)		(458,331)		(5,436)		(463,767)
Underwriting profit (loss)	$	(2,752)	$	195,364	$	192,612	$	(109,331)	$	83,281
Net investment income		-		-		343,549		149,671		493,220
Net results from structured products (2)		11,866		(20,415)		(8,549)		-		(8,549)
Net fee income and other (3)		(3,867)		1,323		(2,544)		90		(2,454)
Net realized gains (losses) on investments						22,813		(14,403)		8,410
Contribution from P&C and Life Operations					$	547,881	$	26,027	$	573,908
Corporate & other:
Net realized & unrealized gains (losses) on derivative instruments										(3,598)
Net income (loss) from investment fund affiliates and operating affiliates (4)										61,319
Exchange gains (losses)										5,258
Corporate operating expenses										(94,321)
Interest expense (5)										(53,409)
Non-controlling interests										(40,011)
Income tax										(51,362)
Net income (loss) attributable to XL Group plc									$	397,784
Ratios – P&C operations: (6)
Loss and loss expense ratio		66.9%		47.8%		60.9%
Underwriting expense ratio		33.2%		29.6%		32.1%
Combined ratio		100.1%		77.4%		93.0%

_______________

(1)       Operating expenses exclude Corporate operating expenses, shown separately.

(2)       The net results from P&C structured products include net investment income and interest expense of $34.7 million and $43.2 million, respectively.

(3)       Net fee income and other includes operating expenses from the Company's loss prevention consulting services business.

(4)       The Company records the income related to the alternative funds and to the private investment and operating fund affiliates on a one-month and three-month lag, respectively.

(5)       Interest expense excludes interest expense related to deposit liabilities recorded in the Insurance and Reinsurance segments.

(6)       Ratios are based on net premiums earned from P&C operations.

Six Months Ended June 30, 2011							Life
(U.S. dollars in thousands, except ratios)	Insurance		Reinsurance		Total P&C		Operations		Total
Gross premiums written	$	2,512,379	$	1,349,184	$	3,861,563	$	197,940	$	4,059,503
Net premiums written		1,812,181		1,208,160		3,020,341		181,866		3,202,207
Net premiums earned		1,783,363		794,458		2,577,821		181,901		2,759,722
Net losses and loss expenses		(1,396,695)		(635,754)		(2,032,449)		(270,647)		(2,303,096)
Acquisition costs		(221,527)		(164,974)		(386,501)		(17,088)		(403,589)
Operating expenses (1)		(330,703)		(89,183)		(419,886)		(4,889)		(424,775)
Underwriting profit (loss)	$	(165,562)	$	(95,453)	$	(261,015)	$	(110,723)	$	(371,738)
Net investment income		-		-		379,618		159,033		538,651
Net results from structured products (2)		5,950		6,440		12,390		-		12,390
Net fee income and other (3)		(9,130)		1,385		(7,745)		137		(7,608)
Net realized gains (losses) on investments						(37,134)		(38,847)		(75,981)
Contribution from P&C and Life Operations					$	86,114	$	9,600	$	95,714
Corporate & other:
Net realized & unrealized gains (losses) on derivative instruments										(7,383)
Net income (loss) from investment fund affiliates and operating affiliates (4)										97,287
Exchange gains (losses)										(1,016)
Corporate operating expenses										(75,258)
Interest expense (5)										(83,498)
Non-controlling interests										(35,438)
Income tax										7,971
Net income (loss) attributable to XL Group plc									$	(1,621)
Ratios – P&C operations: (6)
Loss and loss expense ratio		78.3%		80.0%		78.8%
Underwriting expense ratio		31.0%		32.0%		31.3%
Combined ratio		109.3%		112.0%		110.1%

_______________

(1)       Operating expenses exclude Corporate operating expenses, shown separately.

(2)       The net results from P&C structured products include net investment income and interest expense of $38.1 million and $25.7 million, respectively.

(3)       Net fee income and other includes operating expenses from the Company's loss prevention consulting services business and expenses related to the cost of an endorsement facility with National Indemnity Company.

(4)       The Company records the income related to the alternative funds and to the private investment and operating fund affiliates on a one-month and three-month lag, respectively.

(5)       Interest expense excludes interest expense related to deposit liabilities recorded in the Insurance and Reinsurance segments.

(6)       Ratios are based on net premiums earned from P&C operations.

Schedule Of Net Premiums Earned By Line Of Business [Text Block]

Three Months Ended June 30, 2012						Life
(U.S. dollars in thousands)		Insurance		Reinsurance		Operations		Total
P&C Operations:
	Casualty - professional lines	$	330,876	$	53,303	$	-	$	384,179
	Casualty - other lines		167,562		76,842		-		244,404
	Property catastrophe		-		113,221		-		113,221
	Other property		124,893		145,025		-		269,918
	Marine, energy, aviation and satellite		143,981		35,627		-		179,608
	Other specialty lines (1)		190,169		-		-		190,169
	Other (2)		1,813		17,660		-		19,473
Total P&C Operations		$	959,294	$	441,678	$	-	$	1,400,972
Life Operations:
	Annuity	$	-	$	-	$	31,243	$	31,243
	Other Life		-		-		54,380		54,380
Total Life Operations		$	-	$	-	$	85,623	$	85,623
Total		$	959,294	$	441,678	$	85,623	$	1,486,595
Three Months Ended June 30, 2011
(U.S. dollars in thousands)
P&C Operations:
	Casualty - professional lines	$	322,654	$	51,915	$	-	$	374,569
	Casualty - other lines		172,246		68,920		-		241,166
	Property catastrophe		-		94,363		-		94,363
	Other property		117,088		135,255		-		252,343
	Marine, energy, aviation and satellite		128,358		30,436		-		158,794
	Other specialty lines (1)		165,027		-		-		165,027
	Other (2)		2,070		17,793		-		19,863
Total P&C Operations		$	907,443	$	398,682	$	-	$	1,306,125
Life Operations:
	Annuity	$	-	$	-	$	33,968	$	33,968
	Other Life		-		-		58,246		58,246
Total Life Operations		$	-	$	-	$	92,214	$	92,214
Total		$	907,443	$	398,682	$	92,214	$	1,398,339

_______________

(1)       Other specialty lines within the Insurance segment includes: environmental, programs, equine, warranty, fine art and specie, middle markets, political risk and trade credit, product recall, surety, inland marine and surplus lines.

(2)       Other includes whole account contracts, structured indemnity, internal reinsurance and other lines.

Six Months Ended June 30, 2012						Life
(U.S. dollars in thousands)		Insurance		Reinsurance		Operations		Total
P&C Operations:
	Casualty - professional lines	$	654,696	$	108,209	$	-	$	762,905
	Casualty - other lines		334,920		150,080		-		485,000
	Property catastrophe		-		216,146		-		216,146
	Other property		258,312		280,769		-		539,081
	Marine, energy, aviation and satellite		264,081		71,371		-		335,452
	Other specialty lines (1)		374,203		-		-		374,203
	Other (2)		7,138		38,945		-		46,083
Total P&C Operations		$	1,893,350	$	865,520	$	-	$	2,758,870
Life Operations:
	Annuity	$	-	$	-	$	62,700	$	62,700
	Other Life		-		-		101,443		101,443
Total P&C Operations		$	-	$	-	$	164,143	$	164,143
Total		$	1,893,350	$	865,520	$	164,143	$	2,923,013
Six Months Ended June 30, 2011
(U.S. dollars in thousands)
P&C Operations:
	Casualty - professional lines	$	638,297	$	105,632	$	-	$	743,929
	Casualty - other lines		328,950		119,963		-		448,913
	Property catastrophe		-		188,927		-		188,927
	Other property		224,009		271,498		-		495,507
	Marine, energy, aviation and satellite		253,893		68,864		-		322,757
	Other specialty lines (1)		333,693		-		-		333,693
	Other (2)		4,521		39,574		-		44,095
Total P&C Operations		$	1,783,363	$	794,458	$	-	$	2,577,821
Life Operations:
	Annuity	$	-	$	-	$	66,891	$	66,891
	Other Life		-		-		115,010		115,010
Total P&C Operations		$	-	$	-	$	181,901	$	181,901
Total		$	1,783,363	$	794,458	$	181,901	$	2,759,722

_______________

(1)       Other specialty lines within the Insurance segment includes: environmental, programs, equine, warranty, fine art and specie, middle markets, political risk and trade credit, product recall, surety, inland marine and surplus lines.

(2)       Other includes whole account contracts, structured indemnity, internal reinsurance and other lines.

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Related Party Transactions (Tables)

6 Months Ended

Jun. 30, 2012

Related Party Transactions Abstract

Schedule of Related Party Transactions, Activity [Table Text Block]

	Three Months Ended				Six Months Ended
ARX Holding Corporation	June 30,				June 30,
(U.S. dollars in thousands)	2012		2011		2012		2011
Reported net premiums written	$	10,549	$	8,713	$	26,196	$	22,772
Net losses incurred		7,862		5,570		15,823		13,261
Reported acquisition costs		6,136		5,218		12,613		11,067

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Derivative Instruments (Details) - Schedule of derivative instruments designated as hedges of the net investment in a foreign operation (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2012		Jun. 30, 2011
Derivatives Disclosure [Abstract]
Weighted average of U.S. dollar equivalent of foreign denominated net assets	$ 1,872,407		$ 1,656,083		$ 1,882,904		$ 1,542,979
Derivative gains (losses)	$ 56,777	[1]	$ (27,797)	[1]	$ 18,905	[1]	$ (69,206)	[1]

[1] Derivative gains (losses) from derivative instruments designated as hedges of the net investment in a foreign operation are recorded in the cumulative translation adjustment account within AOCI for each period.

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Investments (Details) - Analysis of net realized gains (losses) and the change in unrealized (losses) gains on investments (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net realized gains (losses):
Gross realized gains	$ 53,732	$ 61,037	$ 120,621	$ 88,179
Gross realized losses on investments sold	(37,932)	(43,405)	(63,053)	(99,539)
OTTI on investments, net of amounts transferred to other comprehensive income	(28,193)	(27,176)	(49,158)	(64,621)
Total net realized (losses) on investments	$ (12,393)	$ (9,544)	$ 8,410	$ (75,981)

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UNAUDITED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net income (loss) attributable to XL Group plc	$ 221,156	$ 225,663	$ 397,784	$ (1,621)
Change in net unrealized gains (losses) on investments, net of tax	109,333	167,827	321,657	181,206
Change in net unrealized gains (losses) on affiliate and other investments, net of tax	1,333	8,431	16,383	32,666
Change in OTTI losses recognized in other comprehensive income, net of tax	13,996	(1,183)	26,417	24,124
Change in underfunded pension liability	167	(53)	(7)	(397)
Change in value of cash flow hedge	110	110	220	220
Foreign currency translation adjustments	(45,695)	72,741	(36,974)	84,357
Comprehensive income (loss)	$ 300,400	$ 473,536	$ 725,480	$ 320,555

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Fair Value Measurements

6 Months Ended

Jun. 30, 2012

Fair Value Disclosures Abstract

Fair value disclosures

3. Fair Value Measurements

Fair value is defined as the amount that would be received for the sale of an asset or paid to transfer a liability (an exit price), in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants as of the measurement date. Applicable accounting guidance provides an established hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. Observable inputs are inputs that market participants would use in valuing the asset or liability and are developed based on market data obtained from sources independent of the Company. Unobservable inputs are inputs that reflect the Company's assumptions about the factors that market participants would use in valuing the asset or liability. Assets and liabilities are classified based on the lowest level of input that is significant to the fair value measurements. The Company reviews the fair value hierarchy classification on a quarterly basis. Changes in the observability of valuation inputs may result in a reclassification of levels for certain securities within the fair value hierarchy.

The fair values for available for sale investments are generally sourced from third parties. The fair value of fixed income securities is based upon quoted market values where available, “evaluated bid” prices provided by third party pricing services (“pricing services”) where quoted market values are not available, or by reference to broker quotes where pricing services do not provide coverage for a particular security. While the Company receives values for the majority of the investment securities it holds from pricing services, it is ultimately management's responsibility to determine whether the values received and recorded in the financial statements are representative of appropriate fair value measurements.

The Company performs regular reviews of the prices received from its third party valuation sources to assess if the prices represent a reasonable estimate of the fair value. This process is completed by investment and accounting personnel who are independent of those responsible for obtaining the valuations. The approaches taken by the Company include, but are not limited to, annual reviews of the controls of the external parties responsible for sourcing valuations, which are subjected to automated tolerance checks, quarterly reviews of the valuation sources and dates, and monthly reconciliations between the valuations provided by our external parties and valuations provided by our third party investment managers at a portfolio level.

Where broker quotes are the primary source of the valuations, sufficient information regarding the specific inputs utilized by the brokers is generally not available to support a Level 2 classification. The Company obtains the majority of broker quoted values from third party investment managers who perform independent verifications of these valuations using pricing matrices based upon information gathered by market traders. In addition, for the majority of these securities, the Company compares the broker quotes to independent valuations obtained from third party pricing vendors, which may also consist of broker quotes, to assess if the prices received represent a reasonable estimate of the fair value.

For further information, see Item 8, Note 2, “Significant Accounting Policies,” to the Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2011.

(a) Fair Value Summary

The following tables set forth the Company's assets and liabilities that were accounted for at fair value at June 30, 2012 and December 31, 2011 by level within the fair value hierarchy:

	Quoted Prices		Significant		Significant
	in Active		Other		Other		Collateral
	Markets for		Observable		Unobservable		and		Balance at
June 30, 2012	Identical Assets		Inputs		Inputs		Counterparty		June 30,
(U.S. dollars in thousands)	(Level 1)		(Level 2)		(Level 3)		Netting		2012
Assets
U.S. Government and Government - Related/Supported	$	-	$	2,101,625	$	-	$	-	$	2,101,625
Corporate (1) (2)		-		9,687,642		33,511		-		9,721,153
Residential mortgage-backed securities – Agency ("RMBS - Agency")		-		5,149,725		52,588		-		5,202,313
Residential mortgage-backed securities – Non-Agency ("RMBS - Non-Agency")		-		582,947		1,596		-		584,543
Commercial mortgage-backed securities ("CMBS")		-		904,792		-		-		904,792
Collateralized debt obligations ("CDO")		-		7,839		642,179		-		650,018
Other asset-backed securities (2)		-		1,382,490		25,248		-		1,407,738
U.S. States and political subdivisions of the States		-		1,764,431		-		-		1,764,431
Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported		-		3,906,189		-		-		3,906,189
Total fixed maturities, at fair value	$	-	$	25,487,680	$	755,122	$	-	$	26,242,802
Equity securities, at fair value (3)		273,427		255,629		-		-		529,056
Short-term investments, at fair value (1)(4)		-		227,380		-		-		227,380
Total investments available for sale	$	273,427	$	25,970,689	$	755,122	$	-	$	26,999,238
Cash equivalents (5)		1,750,569		710,712		-		-		2,461,281
Other investments (6)		-		776,438		117,765		-		894,203
Other assets (7)		-		178,104		-		(124,674)		53,430
Total assets accounted for at fair value	$	2,023,996	$	27,635,943	$	872,887	$	(124,674)	$	30,408,152
Liabilities
Financial instruments sold, but not yet purchased (8)	$	-	$	28,198	$	-	$	-	$	28,198
Other liabilities (7)		-		10,578		35,947		-		46,525
Total liabilities accounted for at fair value	$	-	$	38,776	$	35,947	$	-	$	74,723

	Quoted Prices		Significant		Significant
	in Active		Other		Other		Collateral
	Markets for		Observable		Unobservable		and		Balance at
December 31, 2011	Identical Assets		Inputs		Inputs		Counterparty		December 31,
(U.S. dollars in thousands)	(Level 1)		(Level 2)		(Level 3)		Netting		2011
Assets
U.S. Government and Government - Related/Supported	$	-	$	1,990,983	$	-	$	-	$	1,990,983
Corporate (1) (2)		-		10,084,804		23,818		-		10,108,622
RMBS – Agency		-		5,347,365		32,041		-		5,379,406
RMBS – Non-Agency		-		641,815		-		-		641,815
CMBS		-		974,835		-		-		974,835
CDO		-		7,751		650,851		-		658,602
Other asset-backed securities (2)		-		1,323,697		16,552		-		1,340,249
U.S. States and political subdivisions of the States		-		1,797,378		-		-		1,797,378
Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported		-		3,298,135		-		-		3,298,135
Total fixed maturities, at fair value (2)	$	-	$	25,466,763	$	723,262	$	-	$	26,190,025
Equity securities, at fair value (3)		239,175		229,022		-		-		468,197
Short-term investments, at fair value (1)(4)		-		359,063		-		-		359,063
Total investments available for sale	$	239,175	$	26,054,848	$	723,262	$	-	$	27,017,285
Cash equivalents (5)		1,686,101		1,068,264		-		-		2,754,365
Other investments (6)		-		547,598		113,959		-		661,557
Other assets (7)		-		143,622		-		(77,888)		65,734
Total assets accounted for at fair value	$	1,925,276	$	27,814,332	$	837,221	$	(77,888)	$	30,498,941
Liabilities
Financial instruments sold, but not yet purchased (8)	$	-	$	20,844	$	-	$	-	$	20,844
Other liabilities (7)		-		16,871		42,644		(809)		58,706
Total liabilities accounted for at fair value	$	-	$	37,715	$	42,644	$	(809)	$	79,550

_______________

(1)Included within Corporate are certain medium term notes supported primarily by pools of European investment grade credit with varying degrees of leverage. The notes, which are in a gross unrealized loss position, had a fair value of $186.1 million and $266.0 million and an amortized cost of $199.1million and $297.7 million at June 30, 2012 and December 31, 2011, respectively. These notes allow the investor to participate in cash flows of the underlying bonds including certain residual values, which could serve to either decrease or increase the ultimate values of these notes.

(2)       The Company invests in covered bonds issued by financial institutions (“Covered Bonds”). Covered Bonds are senior secured debt instruments issued by financial institutions and backed by over-collateralized pools of public sector or mortgage loans.At June 30, 2012,Covered Bonds within Total fixed maturities with a fair value of $500.5 million areincluded within Other asset-backed securities to align the Company's classification to market indices. At December 31, 2011,Covered Bonds within Total fixed maturities with a fair value of $353.9 million were reclassified from Corporate to Other asset-backed securities to conform to current period presentation.

(3)       Included within Equity securities are investments in fixed income funds with a fair value of $95.8 million and $91.6 million at June 30, 2012 and December 31, 2011, respectively.

(4)       Short-term investments consist primarily of Corporate securities and U.S. Government and Government-Related/Supported securities.

(5)       Cash equivalents balances subject to fair value measurement include certificates of deposit and money market funds. Operating cash balances are not subject to fair value measurement guidance.

(6)The Other investments balance excludes certain structured transactions including certain investments in project finance transactions, a payment obligation and liquidity financing provided to a structured credit vehicle as a part of a third party medium term note facility. These investments that totaled $314.0 million at June 30, 2012 and $323.7million at December 31, 2011are carried at amortized cost.For further details regarding the nature of Other investments and related features see Item 8, Note 7, “Other Investments,” to the Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2011

(7)Other assets and other liabilities include derivative instruments.The derivative balances included in each category are reported on a gross basis by level with a netting adjustment presented separately in the Collateral and Counterparty Netting column. The Company often enters into different types of derivative contracts with a single counterparty and these contracts are covered under a netting agreement. In addition, the Company held net cash collateral related to derivative positions of approximately $124.7 million and $77.1 million at June 30, 2012 and December 31, 2011, respectively. This balance is included within cash and cash equivalents and the corresponding liability to return the collateral has been offset against the derivative positions within the balance sheet as appropriate under the netting agreement. The fair values of the individual derivative contracts are reported gross in their respective levels based on the fair value hierarchy.

(8)       Financial instruments sold, but not yet purchased, represent “short sales” and are included within “Payable for investments purchased” on the balance sheet.

(b) Level 3 Gains and Losses

The tables below present additional information about assets and liabilities measured at fair value on a recurring basis and for which Level 3 inputs were utilized to determine fair value. The tables reflect gains and losses for the three and six months endedJune 30, 2012 and 2011 for all financial assets and liabilities categorized as Level 3 at June 30, 2012 and 2011, respectively. The tables do not include gains or losses that were reported in Level 3 in prior periods for assets that were transferred out of Level 3 prior to June 30, 2012 and 2011. Gains and losses for assets and liabilities classified within Level 3 in the table below may include changes in fair value that are attributable to both observable inputs (Levels 1 and 2) and unobservable inputs (Level 3). Further, it should be noted that the following tables do not take into consideration the effect of offsetting Level 1 and 2 financial instruments entered into by the Company that are either economically hedged by certain exposures to the Level 3 positions or that hedge the exposures in Level 3 positions.

In general, Level 3 assets include securities for which values were obtained from brokers where either significant inputs were utilized in determining the values that were difficult to corroborate with observable market data, or sufficient information regarding the specific inputs utilized by the broker was not available to support a Level 2 classification. Transfers into or out of Level 3 primarily arise as a result of the valuations utilized by the Company changing between either those provided by independent pricing services that do not contain significant observable inputs, or other valuations sourced from brokers that are considered Level 3.

There were no transfers between Level 1 and Level 2 during the three and six month periods ended June 30, 2012 and 2011.

	Level 3 Assets and Liabilities - Three Months Ended June 30, 2012
(U.S. dollars in thousands)			Corporate		RMBS - Agency		RMBS - Non Agency		CMBS		CDO
Balance, beginning of period		$	33,305	$	39,795	$	-	$	-	$	638,697
Realized gains (losses)			82		(30)		-		-		57
Movement in unrealized gains (losses)			94		195		-		-		6,186
Purchases and issuances			-		35		-		-		-
Sales and settlements			(213)		(4,345)		-		-		(1,488)
Transfers into Level 3			536		16,938		1,596		-		-
Transfers out of Level 3			(293)		-		-		-		(1,273)
Fixed maturities to short-term investments classification change			-		-		-		-		-
Balance, end of period		$	33,511	$	52,588	$	1,596	$	-	$	642,179
Movement in total gains (losses) above relating to instruments still held at the reporting date		$	94	$	197	$	-	$	-	$	6,186
	Level 3 Assets and Liabilities - Three Months Ended June 30, 2012
(U.S. dollars in thousands)			Other asset-backed securities		Non-US Sovereign Government, Provincial, Supranational and Government Related/Supported		Short-term investments		Other investments		Derivative Contracts - Net
Balance, beginning of period		$	16,410	$	-	$	-	$	115,659	$	(40,630)
Realized gains (losses)			(135)		-		-		510		-
Movement in unrealized gains (losses)			4,145		-		-		3,616		4,683
Purchases and issuances			-		-		-		2,365		-
Sales and settlements			(844)		-		-		(4,080)		-
Transfers into Level 3			5,672		-		-		-		-
Transfers out of Level 3			-		-		-		(305)		-
Fixed maturities to short-term investments classification change			-		-		-		-		-
Balance, end of period		$	25,248	$	-	$	-	$	117,765	$	(35,947)
Movement in total gains (losses) above relating to instruments still held at the reporting date		$	3,918	$	-	$	-	$	1,326	$	4,683

	Level 3 Assets and Liabilities - Three Months Ended June 30, 2011
(U.S. dollars in thousands)			Corporate		RMBS - Agency		RMBS - Non Agency		CMBS		CDO
Balance, beginning of period		$	34,885	$	32,987	$	3,335	$	1,757	$	742,551
Realized gains (losses)			(247)		-		-		207		(419)
Movement in unrealized gains (losses)			353		61		(22)		(527)		9,633
Purchases and issuances			-		-		-		3,155		2,379
Sales and settlements			(7,567)		(165)		(119)		(29)		(29,530)
Transfers into Level 3			-		11,276		-		-		2,625
Transfers out of Level 3			(22,638)		(28,774)		-		-		-
Fixed maturities to short-term investments classification change			-		-		-		-		-
Balance, end of period		$	4,786	$	15,385	$	3,194	$	4,563	$	727,239
Movement in total gains (losses) above relating to instruments still held at the reporting date		$	71	$	61	$	(22)	$	(320)	$	8,419
	Level 3 Assets and Liabilities - Three Months Ended June 30, 2011
(U.S. dollars in thousands)			Other asset-backed securities		Non-US Sovereign Government, Provincial, Supranational and Government Related/Supported		Short-term investments		Other investments		Derivative Contracts - Net
Balance, beginning of period		$	12,371	$	-	$	-	$	144,834	$	(36,810)
Realized gains (losses)			161		-		-		12,155		-
Movement in unrealized gains (losses)			4,688		-		-		(1,982)		(12,725)
Purchases and issuances			-		-		-		6,254		-
Sales and settlements			(172)		-		-		(46,421)		(110)
Transfers into Level 3			-		-		-		-		-
Transfers out of Level 3			-		-		-		(300)		-
Fixed maturities to short-term investments classification change			-		-		-		-		-
Balance, end of period		$	17,048	$	-	$	-	$	114,540	$	(49,645)
Movement in total gains (losses) above relating to instruments still held at the reporting date		$	4,878	$	-	$	-	$	9,285	$	(12,725)

	Level 3 Assets and Liabilities - Six Months Ended June 30, 2012
(U.S. dollars in thousands)			Corporate		RMBS - Agency		RMBS - Non Agency		CMBS		CDO
Balance, beginning of period		$	23,818	$	32,041	$	-	$	-	$	650,851
Realized gains (losses)			(42)		(96)		-		-		(1,612)
Movement in unrealized gains (losses)			1,255		(95)		-		-		39,379
Purchases and issuances			8,734		70		-		-		-
Sales and settlements			(1,608)		(3,211)		-		-		(44,835)
Transfers into Level 3			1,354		23,879		1,596		-		-
Transfers out of Level 3			-		-		-		-		(1,604)
Fixed maturities to short-term investments classification change			-		-		-		-		-
Balance, end of period		$	33,511	$	52,588	$	1,596	$	-	$	642,179
Movement in total gains (losses) above relating to instruments still held at the reporting date		$	1,255	$	(95)	$	-	$	-	$	35,379
	Level 3 Assets and Liabilities - Six Months Ended June 30, 2012
(U.S. dollars in thousands)			Other asset-backed securities		Non-US Sovereign Government, Provincial, Supranational and Government Related/Supported		Short-term investments		Other investments		Derivative Contracts - Net
Balance, beginning of period		$	16,552	$	-	$	-	$	113,959	$	(42,644)
Realized gains (losses)			(94)		-		-		2,438		-
Movement in unrealized gains (losses)			3,905		-		-		4,521		6,697
Purchases and issuances			-		-		-		3,682		-
Sales and settlements			(1,118)		-		-		(6,520)		-
Transfers into Level 3			6,003		-		-		-		-
Transfers out of Level 3			-		-		-		(315)		-
Fixed maturities to short-term investments classification change			-		-		-		-		-
Balance, end of period		$	25,248	$	-	$	-	$	117,765	$	(35,947)
Movement in total gains (losses) above relating to instruments still held at the reporting date		$	3,681	$	-	$	-	$	1,004	$	6,697

	Level 3 Assets and Liabilities - Six Months Ended June 30, 2011
(U.S. dollars in thousands)			Corporate		RMBS - Agency		RMBS - Non Agency		CMBS		CDO
Balance, beginning of period		$	36,866	$	30,255	$	4,964	$	1,623	$	721,572
Realized gains (losses)			(279)		-		-		(678)		(1,071)
Movement in unrealized gains (losses)			195		(50)		(16)		514		36,417
Purchases and issuances			6,877		-		-		3,155		2,379
Sales and settlements			(10,049)		(286)		(374)		(51)		(33,944)
Transfers into Level 3			-		-		-		-		1,886
Transfers out of Level 3			(28,824)		(14,534)		(1,380)		-		-
Fixed maturities to short-term investments classification change			-		-		-		-		-
Balance, end of period		$	4,786	$	15,385	$	3,194	$	4,563	$	727,239
Movement in total gains (losses) above relating to instruments still held at the reporting date		$	6	$	(50)	$	(16)	$	(152)	$	33,777
	Level 3 Assets and Liabilities - Six Months Ended June 30, 2011
(U.S. dollars in thousands)			Other asset-backed securities		Non-US Sovereign Government, Provincial, Supranational and Government Related/Supported		Short-term investments		Other investments		Derivative Contracts - Net
Balance, beginning of period		$	24,650	$	3,667	$	-	$	133,717	$	(39,195)
Realized gains (losses)			(317)		-		-		12,155		-
Movement in unrealized gains (losses)			6,860		-		-		7,492		(10,276)
Purchases and issuances			-		-		-		8,115		-
Sales and settlements			(9,114)		-		-		(46,939)		(174)
Transfers into Level 3			-		-		-		-		-
Transfers out of Level 3			(5,031)		(3,667)		-		-		-
Fixed maturities to short-term investments classification change			-		-		-		-		-
Balance, end of period		$	17,048	$	-	$	-	$	114,540	$	(49,645)
Movement in total gains (losses) above relating to instruments still held at the reporting date		$	6,193	$	-	$	-	$	17,337	$	(10,276)

(c) Fixed maturities and short-term investments

The Company's Level 3 assets consist primarily of CDOs,for which non-binding broker quotesare the primary source of the valuations. Sufficient information regarding the specific inputs utilized by the brokers was not available to support a Level 2 classification. The Company obtains the majority of broker quotes for these CDOs from third party investment managers who perform independent verifications of these valuations using pricing matrices based upon information gathered by market traders. In addition, for the majority of these securities, the Company compares the broker quotes to independent valuations obtained from third party pricing vendors, which may also consist of broker quotes, to assess if the prices received represent a reasonable estimate of the fair value. Although the Company does not have access to the specific unobservable inputs that may have been used in the fair value measurements of the CDO securities provided by brokers, we would expect that the significant inputs considered are prepayment rates, probability of default, loss severity in the event of default, recovery rates, liquidity premium and reinvestment rates. Significant increases (decreases) in any of those inputs in isolation could result in a significantly different fair value measurement. Generally, a change in the assumption used for the probability of default is accompanied by a directionally similar change in the assumption used for the loss severity and a directionally opposite change in the assumption used for prepayment rates.

The remainder of the Level 3 assets relate to primarily to private equity investments and certain derivative positions as described below.

(d) Other investments

Included within the Other investments component of the Company's Level 3 valuations are private investments and alternative fund investments where the Company is not deemed to have significant influence over the investee. The fair value of these investments is based upon net asset values received from the investment manager or general partner of the respective entity. The nature of the underlying investments held by the investee that form the basis of the net asset value include assets such as private business ventures and are such that significant Level 3 inputs are utilized in the determination of the individual underlying holding values and, accordingly, the fair value of the Company's investment in each entity is classified within Level 3. The Company has not adjusted the net asset values received; however, management incorporates factors such as the most recent financial information received, annual audited financial statements and the values at which capital transactions with the investee take place when applying judgment regarding whether any adjustments should be made to the net asset value in recording the fair value of each position. Investments in alternative funds included in Other investments utilize strategies including arbitrage, directional, event driven and multi-style. These funds potentially have lockup and gate provisions which may limit redemption liquidity. For further details regarding the nature of Other investments and related features see Item 8, Note 7, “Other Investments,” to the Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2011.

(e) Derivative instruments

Derivative instruments recorded within Other liabilities and classified within Level 3 include credit derivatives sold providing protection on senior tranches of structured finance transactions where the value is obtained directly from the investment bank counterparty and sufficient information regarding the inputs utilized in such valuation was not obtained to support a Level 2 classification and guaranteed minimum income benefits (“GMIB”) embedded within one reinsurance contract. The majority of inputs utilized in the valuations of these types of derivative contracts are considered Level 1 or Level 2; however, each valuation includes at least one Level 3 input that was significant to the valuation and, accordingly, the values are disclosed within Level 3.

(f) Financial Instruments Not Carried at Fair Value

Authoritative guidance over disclosures about the fair value of financial instruments requires additional disclosure of fair value information for financial instruments not carried at fair value in both interim and annual reporting periods. Certain financial instruments, particularly insurance contracts, are excluded from these fair value disclosure requirements. The carrying values of cash and cash equivalents, accrued investment income, net receivable from investments sold, other assets, net payable for investments purchased, other liabilities and other financial instruments not included below approximated their fair values. The following table includes financial instruments for which the carrying value differs from the estimated fair values at June 30, 2012 and December 31, 2011. All of these fair values estimates are considered Level 2 fair value measurements.The fair values for fixed maturities held to maturity are provided by third party pricing vendors and significant valuation inputs for all other items included were based upon market data obtained from sources independent of the Company.

		June 30, 2012				December 31, 2011
			Carrying		Fair		Carrying		Fair
(U.S. dollars in thousands)			Value		Value		Value		Value
	Fixed maturities, held to maturity	$	2,716,357	$	3,006,992	$	2,668,978	$	2,895,668
	Other investments - structured transactions.		314,015		289,874		323,705		297,124
Financial Assets		$	3,030,372	$	3,296,866	$	2,992,683	$	3,192,792
	Deposit liabilities	$	1,600,595	$	1,876,742	$	1,608,108	$	1,809,812
	Notes payable and debt		1,673,921		1,820,193		2,275,327		2,340,148
Financial Liabilities		$	3,274,516	$	3,696,935	$	3,883,435	$	4,149,960

The Company historically participated in structured transactions. Remaining structured transactions include cash loans supporting project finance transactions, providing liquidity facility financing to structured project deals and an investment in a payment obligation with an insurance company. These transactions are carried at amortized cost. The fair value of these investments held by the Company is determined through use of internal models utilizing reported trades, benchmark yields, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers and reference data.

Deposit liabilities include obligations under structured insurance and reinsurance transactions. For purposes of fair value disclosures, the Company determined the estimated fair value of the deposit liabilities by assuming a discount rate equal to the appropriate U.S. Treasury rate plus 139.7 basis points at June 30, 2012 and the appropriate U.S. Treasury rate plus 161.8basis points at December 31, 2011. The discount rate incorporates the Company's own credit risk into the determination of estimated fair value.

The fair values of the Company's notes payable and debt outstanding were determined based on quoted market prices.

There are no significant concentrations of credit risk within the Company's financial instruments as defined in the authoritative guidance over disclosures of fair value of financial instruments not carried at fair value, which excludes certain financial instruments, particularly insurance contracts.

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Computation of Earnings Per Ordinary Share and Ordinary Share Equivalent (Details) - Narrative In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Stock Compensation Plan Member
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	8.8	9.0	9.7	17.3
10.75% Equity Security Units Member
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount				30.5
Interest rate on Equity Security Units			10.75%

XML

Computation of Earnings Per Ordinary Share and Ordinary Share Equivalent (Tables)

6 Months Ended

Jun. 30, 2012

Earnings Per Share Abstract

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

(U.S. dollars in thousands, except per share amounts)		Three Months Ended				Six Months Ended
Basic earnings per ordinary share &		June 30,		June 30,		June 30,		June 30,
ordinary share equivalents outstanding:		2012		2011		2012		2011
	Net income (loss) attributable to ordinary shareholders	$	221,156	$	225,663	$	397,784	$	(1,621)
	Weighted average ordinary shares outstanding		309,765		309,184		312,442		310,325
	Basic earnings per ordinary share & ordinary share equivalents outstanding	$	0.71	$	0.73	$	1.27	$	(0.01)
Diluted earnings per ordinary share &
ordinary share equivalents outstanding:
	Net income (loss) attributable to ordinary shareholders	$	221,156	$	225,663	$	397,784	$	(1,621)
	Impact of assumed conversion of 10.75% Units		-		11,977		-		-
	Net income (loss) attributable to ordinary shareholders including impact of assumed conversion of 10.75% Units	$	221,156	$	237,640	$	397,784	$	(1,621)
	Weighted average ordinary shares outstanding - basic		309,765		309,184		312,442		310,325
	Impact of share based compensation and certain conversion features		2,670		32,805		2,568		-
	Weighted average ordinary shares outstanding - diluted		312,435		341,989		315,010		310,325
	Diluted earnings per ordinary share & ordinary share equivalents outstanding	$	0.71	$	0.69	$	1.26	$	(0.01)
Dividends per ordinary share		$	0.11	$	0.11	$	0.22	$	0.22

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Investments (Details) - Cost (amortized cost for fixed maturities and short-term investments), fair value, gross unrealized gains, gross unrealized (losses), and OTTI recorded in AOCI (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2012	Dec. 31, 2011
Fixed maturities - AFS
Cost or Amortized cost of Fixed maturities	$ 25,442,779	$ 25,771,715
Gross unrealized gains of Fixed maturities	1,348,756	1,194,038
Gross Unrealized Losses Related to Changes in Fair Value	(401,150)	(589,070)
Gross Unrealized Losses Non-credit Related OTTI	(147,583)	(186,658)
Fixed maturities, at fair value	26,242,802	26,190,025
Short Term Investments
Cost or Amortized cost of Short-term investments	227,321	359,378
Short Term Investments Gross Unrealized Gains	293	519
Short Term Investments Related To Changes In Fair Value	(234)	(834)
Fair value of Short-term investments	227,380	359,063
Equity securities
Cost of equity securities	553,715	480,685
Gross unrealized gains of Equity securities	3,212	27,947
Related changes in estimated fair value of Equity securities	(27,871)	(40,435)
Equity securities, at fair value	529,056	468,197
Total investments - AFS
Cost or Amortized cost of total investments - AFS	26,223,815	26,611,778
Gross unrealized gains of AFS securities	1,352,261	1,222,504
Related changes in estimated fair value of securities - AFS	(429,255)	(630,339)
OTTI included in other comprehensive income (loss) of securities - AFS	(147,583)	(186,658)
Fair value of securities - AFS	26,999,238	27,017,285
HTM securities
Cost or Amortized Cost	2,716,357	2,668,978
Gross Unrealized Gains	303,135	247,445
Gross Unrealized Losses Related Changes In Estimated Fair Value	(12,500)	(20,735)
Fair Value	3,006,992	2,895,688
US Government And Government Related [Member]
Fixed maturities - AFS
Cost or Amortized cost of Fixed maturities	1,971,384	1,864,354
Gross unrealized gains of Fixed maturities	133,040	130,874
Gross Unrealized Losses Related to Changes in Fair Value	(2,799)	(4,245)
Gross Unrealized Losses Non-credit Related OTTI	0	0
Fixed maturities, at fair value	2,101,625	1,990,983
HTM securities
Cost or Amortized Cost	10,458	10,399
Gross Unrealized Gains	1,753	1,510
Gross Unrealized Losses Related Changes In Estimated Fair Value	0	0
Fair Value	12,211	11,909
Corporate
Fixed maturities - AFS
Cost or Amortized cost of Fixed maturities	9,297,657	9,866,677
Gross unrealized gains of Fixed maturities	597,211	527,192
Gross Unrealized Losses Related to Changes in Fair Value	(157,659)	(233,581)
Gross Unrealized Losses Non-credit Related OTTI	(16,056)	(51,666)
Fixed maturities, at fair value	9,721,153	10,108,622
HTM securities
Cost or Amortized Cost	1,387,033	1,290,209
Gross Unrealized Gains	131,267	91,313
Gross Unrealized Losses Related Changes In Estimated Fair Value	(8,847)	(14,433)
Fair Value	1,509,453	1,367,089
Medium-term Notes [Member]
Fixed maturities - AFS
Cost or Amortized cost of Fixed maturities	199,100	297,700
Fixed maturities, at fair value	186,100	266,000
Tier One And Upper Tier Two Securities [Member]
Fixed maturities - AFS
Cost or Amortized cost of Fixed maturities	420,300	494,900
Fixed maturities, at fair value	346,200	386,100
RMBS - Agency
Fixed maturities - AFS
Cost or Amortized cost of Fixed maturities	5,001,023	5,189,473
Gross unrealized gains of Fixed maturities	203,766	193,782
Gross Unrealized Losses Related to Changes in Fair Value	(2,476)	(3,849)
Gross Unrealized Losses Non-credit Related OTTI	0	0
Fixed maturities, at fair value	5,202,313	5,379,406
RMBS - Non-Agency
Fixed maturities - AFS
Cost or Amortized cost of Fixed maturities	728,309	851,557
Gross unrealized gains of Fixed maturities	21,822	19,667
Gross Unrealized Losses Related to Changes in Fair Value	(52,341)	(112,867)
Gross Unrealized Losses Non-credit Related OTTI	(113,247)	(116,542)
Fixed maturities, at fair value	584,543	641,815
HTM securities
Cost or Amortized Cost	81,028	80,955
Gross Unrealized Gains	6,077	6,520
Gross Unrealized Losses Related Changes In Estimated Fair Value	(15)	(32)
Fair Value	87,090	87,443
CMBS
Fixed maturities - AFS
Cost or Amortized cost of Fixed maturities	842,802	927,684
Gross unrealized gains of Fixed maturities	66,058	56,704
Gross Unrealized Losses Related to Changes in Fair Value	(487)	(2,405)
Gross Unrealized Losses Non-credit Related OTTI	(3,581)	(7,148)
Fixed maturities, at fair value	904,792	974,835
HTM securities
Cost or Amortized Cost	12,546
Gross Unrealized Gains	1,667
Gross Unrealized Losses Related Changes In Estimated Fair Value	0
Fair Value	14,213
CDO
Fixed maturities - AFS
Cost or Amortized cost of Fixed maturities	796,018	843,553
Gross unrealized gains of Fixed maturities	8,095	6,624
Gross Unrealized Losses Related to Changes in Fair Value	(149,211)	(186,578)
Gross Unrealized Losses Non-credit Related OTTI	(4,884)	(4,997)
Fixed maturities, at fair value	650,018	658,602
Other asset-backed securities
Fixed maturities - AFS
Cost or Amortized cost of Fixed maturities	1,392,065	1,341,309
Gross unrealized gains of Fixed maturities	44,974	30,731
Gross Unrealized Losses Related to Changes in Fair Value	(19,486)	(25,486)
Gross Unrealized Losses Non-credit Related OTTI	(9,815)	(6,305)
Fixed maturities, at fair value	1,407,738	1,340,249
HTM securities
Cost or Amortized Cost	217,347	288,741
Gross Unrealized Gains	20,156	20,875
Gross Unrealized Losses Related Changes In Estimated Fair Value	(464)	(320)
Fair Value	237,039	309,296
Covered Bonds [Member]
Fixed maturities - AFS
Cost or Amortized cost of Fixed maturities	478,100	345,400
Fixed maturities, at fair value	500,500	353,900
HTM securities
Cost or Amortized Cost	8,100	8,100
Fair Value	7,800	7,700
U.S. States and political subdivisions of the States [Member]
Fixed maturities - AFS
Cost or Amortized cost of Fixed maturities	1,640,991	1,698,573
Gross unrealized gains of Fixed maturities	125,221	101,025
Gross Unrealized Losses Related to Changes in Fair Value	(1,781)	(2,220)
Gross Unrealized Losses Non-credit Related OTTI	0	0
Fixed maturities, at fair value	1,764,431	1,797,378
Non US Sovereign Government Supranational And Government Related [Member]
Fixed maturities - AFS
Cost or Amortized cost of Fixed maturities	3,772,530	3,188,535
Gross unrealized gains of Fixed maturities	148,569	127,439
Gross Unrealized Losses Related to Changes in Fair Value	(14,910)	(17,839)
Gross Unrealized Losses Non-credit Related OTTI	0	0
Fixed maturities, at fair value	3,906,189	3,298,135
HTM securities
Cost or Amortized Cost	1,007,945	998,674
Gross Unrealized Gains	142,215	127,227
Gross Unrealized Losses Related Changes In Estimated Fair Value	(3,174)	(5,950)
Fair Value	$ 1,146,986	$ 1,119,951

XML

Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2012

Fair Value Disclosures Abstract

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

	Quoted Prices		Significant		Significant
	in Active		Other		Other		Collateral
	Markets for		Observable		Unobservable		and		Balance at
June 30, 2012	Identical Assets		Inputs		Inputs		Counterparty		June 30,
(U.S. dollars in thousands)	(Level 1)		(Level 2)		(Level 3)		Netting		2012
Assets
U.S. Government and Government - Related/Supported	$	-	$	2,101,625	$	-	$	-	$	2,101,625
Corporate (1) (2)		-		9,687,642		33,511		-		9,721,153
Residential mortgage-backed securities – Agency ("RMBS - Agency")		-		5,149,725		52,588		-		5,202,313
Residential mortgage-backed securities – Non-Agency ("RMBS - Non-Agency")		-		582,947		1,596		-		584,543
Commercial mortgage-backed securities ("CMBS")		-		904,792		-		-		904,792
Collateralized debt obligations ("CDO")		-		7,839		642,179		-		650,018
Other asset-backed securities (2)		-		1,382,490		25,248		-		1,407,738
U.S. States and political subdivisions of the States		-		1,764,431		-		-		1,764,431
Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported		-		3,906,189		-		-		3,906,189
Total fixed maturities, at fair value	$	-	$	25,487,680	$	755,122	$	-	$	26,242,802
Equity securities, at fair value (3)		273,427		255,629		-		-		529,056
Short-term investments, at fair value (1)(4)		-		227,380		-		-		227,380
Total investments available for sale	$	273,427	$	25,970,689	$	755,122	$	-	$	26,999,238
Cash equivalents (5)		1,750,569		710,712		-		-		2,461,281
Other investments (6)		-		776,438		117,765		-		894,203
Other assets (7)		-		178,104		-		(124,674)		53,430
Total assets accounted for at fair value	$	2,023,996	$	27,635,943	$	872,887	$	(124,674)	$	30,408,152
Liabilities
Financial instruments sold, but not yet purchased (8)	$	-	$	28,198	$	-	$	-	$	28,198
Other liabilities (7)		-		10,578		35,947		-		46,525
Total liabilities accounted for at fair value	$	-	$	38,776	$	35,947	$	-	$	74,723

	Quoted Prices		Significant		Significant
	in Active		Other		Other		Collateral
	Markets for		Observable		Unobservable		and		Balance at
December 31, 2011	Identical Assets		Inputs		Inputs		Counterparty		December 31,
(U.S. dollars in thousands)	(Level 1)		(Level 2)		(Level 3)		Netting		2011
Assets
U.S. Government and Government - Related/Supported	$	-	$	1,990,983	$	-	$	-	$	1,990,983
Corporate (1) (2)		-		10,084,804		23,818		-		10,108,622
RMBS – Agency		-		5,347,365		32,041		-		5,379,406
RMBS – Non-Agency		-		641,815		-		-		641,815
CMBS		-		974,835		-		-		974,835
CDO		-		7,751		650,851		-		658,602
Other asset-backed securities (2)		-		1,323,697		16,552		-		1,340,249
U.S. States and political subdivisions of the States		-		1,797,378		-		-		1,797,378
Non-U.S. Sovereign Government, Provincial, Supranational and Government-Related/Supported		-		3,298,135		-		-		3,298,135
Total fixed maturities, at fair value (2)	$	-	$	25,466,763	$	723,262	$	-	$	26,190,025
Equity securities, at fair value (3)		239,175		229,022		-		-		468,197
Short-term investments, at fair value (1)(4)		-		359,063		-		-		359,063
Total investments available for sale	$	239,175	$	26,054,848	$	723,262	$	-	$	27,017,285
Cash equivalents (5)		1,686,101		1,068,264		-		-		2,754,365
Other investments (6)		-		547,598		113,959		-		661,557
Other assets (7)		-		143,622		-		(77,888)		65,734
Total assets accounted for at fair value	$	1,925,276	$	27,814,332	$	837,221	$	(77,888)	$	30,498,941
Liabilities
Financial instruments sold, but not yet purchased (8)	$	-	$	20,844	$	-	$	-	$	20,844
Other liabilities (7)		-		16,871		42,644		(809)		58,706
Total liabilities accounted for at fair value	$	-	$	37,715	$	42,644	$	(809)	$	79,550

_______________

(1)Included within Corporate are certain medium term notes supported primarily by pools of European investment grade credit with varying degrees of leverage. The notes, which are in a gross unrealized loss position, had a fair value of $186.1 million and $266.0 million and an amortized cost of $199.1million and $297.7 million at June 30, 2012 and December 31, 2011, respectively. These notes allow the investor to participate in cash flows of the underlying bonds including certain residual values, which could serve to either decrease or increase the ultimate values of these notes.

(2)       The Company invests in covered bonds issued by financial institutions (“Covered Bonds”). Covered Bonds are senior secured debt instruments issued by financial institutions and backed by over-collateralized pools of public sector or mortgage loans.At June 30, 2012,Covered Bonds within Total fixed maturities with a fair value of $500.5 million areincluded within Other asset-backed securities to align the Company's classification to market indices. At December 31, 2011,Covered Bonds within Total fixed maturities with a fair value of $353.9 million were reclassified from Corporate to Other asset-backed securities to conform to current period presentation.

(3)       Included within Equity securities are investments in fixed income funds with a fair value of $95.8 million and $91.6 million at June 30, 2012 and December 31, 2011, respectively.

(4)       Short-term investments consist primarily of Corporate securities and U.S. Government and Government-Related/Supported securities.

(5)       Cash equivalents balances subject to fair value measurement include certificates of deposit and money market funds. Operating cash balances are not subject to fair value measurement guidance.

(6)The Other investments balance excludes certain structured transactions including certain investments in project finance transactions, a payment obligation and liquidity financing provided to a structured credit vehicle as a part of a third party medium term note facility. These investments that totaled $314.0 million at June 30, 2012 and $323.7million at December 31, 2011are carried at amortized cost.For further details regarding the nature of Other investments and related features see Item 8, Note 7, “Other Investments,” to the Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2011

(7)Other assets and other liabilities include derivative instruments.The derivative balances included in each category are reported on a gross basis by level with a netting adjustment presented separately in the Collateral and Counterparty Netting column. The Company often enters into different types of derivative contracts with a single counterparty and these contracts are covered under a netting agreement. In addition, the Company held net cash collateral related to derivative positions of approximately $124.7 million and $77.1 million at June 30, 2012 and December 31, 2011, respectively. This balance is included within cash and cash equivalents and the corresponding liability to return the collateral has been offset against the derivative positions within the balance sheet as appropriate under the netting agreement. The fair values of the individual derivative contracts are reported gross in their respective levels based on the fair value hierarchy.

(8)       Financial instruments sold, but not yet purchased, represent “short sales” and are included within “Payable for investments purchased” on the balance sheet.

Fair Value, Assets And Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Text Block]

	Level 3 Assets and Liabilities - Three Months Ended June 30, 2012
(U.S. dollars in thousands)			Corporate		RMBS - Agency		RMBS - Non Agency		CMBS		CDO
Balance, beginning of period		$	33,305	$	39,795	$	-	$	-	$	638,697
Realized gains (losses)			82		(30)		-		-		57
Movement in unrealized gains (losses)			94		195		-		-		6,186
Purchases and issuances			-		35		-		-		-
Sales and settlements			(213)		(4,345)		-		-		(1,488)
Transfers into Level 3			536		16,938		1,596		-		-
Transfers out of Level 3			(293)		-		-		-		(1,273)
Fixed maturities to short-term investments classification change			-		-		-		-		-
Balance, end of period		$	33,511	$	52,588	$	1,596	$	-	$	642,179
Movement in total gains (losses) above relating to instruments still held at the reporting date		$	94	$	197	$	-	$	-	$	6,186
	Level 3 Assets and Liabilities - Three Months Ended June 30, 2012
(U.S. dollars in thousands)			Other asset-backed securities		Non-US Sovereign Government, Provincial, Supranational and Government Related/Supported		Short-term investments		Other investments		Derivative Contracts - Net
Balance, beginning of period		$	16,410	$	-	$	-	$	115,659	$	(40,630)
Realized gains (losses)			(135)		-		-		510		-
Movement in unrealized gains (losses)			4,145		-		-		3,616		4,683
Purchases and issuances			-		-		-		2,365		-
Sales and settlements			(844)		-		-		(4,080)		-
Transfers into Level 3			5,672		-		-		-		-
Transfers out of Level 3			-		-		-		(305)		-
Fixed maturities to short-term investments classification change			-		-		-		-		-
Balance, end of period		$	25,248	$	-	$	-	$	117,765	$	(35,947)
Movement in total gains (losses) above relating to instruments still held at the reporting date		$	3,918	$	-	$	-	$	1,326	$	4,683

	Level 3 Assets and Liabilities - Three Months Ended June 30, 2011
(U.S. dollars in thousands)			Corporate		RMBS - Agency		RMBS - Non Agency		CMBS		CDO
Balance, beginning of period		$	34,885	$	32,987	$	3,335	$	1,757	$	742,551
Realized gains (losses)			(247)		-		-		207		(419)
Movement in unrealized gains (losses)			353		61		(22)		(527)		9,633
Purchases and issuances			-		-		-		3,155		2,379
Sales and settlements			(7,567)		(165)		(119)		(29)		(29,530)
Transfers into Level 3			-		11,276		-		-		2,625
Transfers out of Level 3			(22,638)		(28,774)		-		-		-
Fixed maturities to short-term investments classification change			-		-		-		-		-
Balance, end of period		$	4,786	$	15,385	$	3,194	$	4,563	$	727,239
Movement in total gains (losses) above relating to instruments still held at the reporting date		$	71	$	61	$	(22)	$	(320)	$	8,419
	Level 3 Assets and Liabilities - Three Months Ended June 30, 2011
(U.S. dollars in thousands)			Other asset-backed securities		Non-US Sovereign Government, Provincial, Supranational and Government Related/Supported		Short-term investments		Other investments		Derivative Contracts - Net
Balance, beginning of period		$	12,371	$	-	$	-	$	144,834	$	(36,810)
Realized gains (losses)			161		-		-		12,155		-
Movement in unrealized gains (losses)			4,688		-		-		(1,982)		(12,725)
Purchases and issuances			-		-		-		6,254		-
Sales and settlements			(172)		-		-		(46,421)		(110)
Transfers into Level 3			-		-		-		-		-
Transfers out of Level 3			-		-		-		(300)		-
Fixed maturities to short-term investments classification change			-		-		-		-		-
Balance, end of period		$	17,048	$	-	$	-	$	114,540	$	(49,645)
Movement in total gains (losses) above relating to instruments still held at the reporting date		$	4,878	$	-	$	-	$	9,285	$	(12,725)

	Level 3 Assets and Liabilities - Six Months Ended June 30, 2012
(U.S. dollars in thousands)			Corporate		RMBS - Agency		RMBS - Non Agency		CMBS		CDO
Balance, beginning of period		$	23,818	$	32,041	$	-	$	-	$	650,851
Realized gains (losses)			(42)		(96)		-		-		(1,612)
Movement in unrealized gains (losses)			1,255		(95)		-		-		39,379
Purchases and issuances			8,734		70		-		-		-
Sales and settlements			(1,608)		(3,211)		-		-		(44,835)
Transfers into Level 3			1,354		23,879		1,596		-		-
Transfers out of Level 3			-		-		-		-		(1,604)
Fixed maturities to short-term investments classification change			-		-		-		-		-
Balance, end of period		$	33,511	$	52,588	$	1,596	$	-	$	642,179
Movement in total gains (losses) above relating to instruments still held at the reporting date		$	1,255	$	(95)	$	-	$	-	$	35,379
	Level 3 Assets and Liabilities - Six Months Ended June 30, 2012
(U.S. dollars in thousands)			Other asset-backed securities		Non-US Sovereign Government, Provincial, Supranational and Government Related/Supported		Short-term investments		Other investments		Derivative Contracts - Net
Balance, beginning of period		$	16,552	$	-	$	-	$	113,959	$	(42,644)
Realized gains (losses)			(94)		-		-		2,438		-
Movement in unrealized gains (losses)			3,905		-		-		4,521		6,697
Purchases and issuances			-		-		-		3,682		-
Sales and settlements			(1,118)		-		-		(6,520)		-
Transfers into Level 3			6,003		-		-		-		-
Transfers out of Level 3			-		-		-		(315)		-
Fixed maturities to short-term investments classification change			-		-		-		-		-
Balance, end of period		$	25,248	$	-	$	-	$	117,765	$	(35,947)
Movement in total gains (losses) above relating to instruments still held at the reporting date		$	3,681	$	-	$	-	$	1,004	$	6,697

	Level 3 Assets and Liabilities - Six Months Ended June 30, 2011
(U.S. dollars in thousands)			Corporate		RMBS - Agency		RMBS - Non Agency		CMBS		CDO
Balance, beginning of period		$	36,866	$	30,255	$	4,964	$	1,623	$	721,572
Realized gains (losses)			(279)		-		-		(678)		(1,071)
Movement in unrealized gains (losses)			195		(50)		(16)		514		36,417
Purchases and issuances			6,877		-		-		3,155		2,379
Sales and settlements			(10,049)		(286)		(374)		(51)		(33,944)
Transfers into Level 3			-		-		-		-		1,886
Transfers out of Level 3			(28,824)		(14,534)		(1,380)		-		-
Fixed maturities to short-term investments classification change			-		-		-		-		-
Balance, end of period		$	4,786	$	15,385	$	3,194	$	4,563	$	727,239
Movement in total gains (losses) above relating to instruments still held at the reporting date		$	6	$	(50)	$	(16)	$	(152)	$	33,777
	Level 3 Assets and Liabilities - Six Months Ended June 30, 2011
(U.S. dollars in thousands)			Other asset-backed securities		Non-US Sovereign Government, Provincial, Supranational and Government Related/Supported		Short-term investments		Other investments		Derivative Contracts - Net
Balance, beginning of period		$	24,650	$	3,667	$	-	$	133,717	$	(39,195)
Realized gains (losses)			(317)		-		-		12,155		-
Movement in unrealized gains (losses)			6,860		-		-		7,492		(10,276)
Purchases and issuances			-		-		-		8,115		-
Sales and settlements			(9,114)		-		-		(46,939)		(174)
Transfers into Level 3			-		-		-		-		-
Transfers out of Level 3			(5,031)		(3,667)		-		-		-
Fixed maturities to short-term investments classification change			-		-		-		-		-
Balance, end of period		$	17,048	$	-	$	-	$	114,540	$	(49,645)
Movement in total gains (losses) above relating to instruments still held at the reporting date		$	6,193	$	-	$	-	$	17,337	$	(10,276)

Schedule Of Financial Instruments Not Carried at Fair Value [Text Block]

		June 30, 2012				December 31, 2011
			Carrying		Fair		Carrying		Fair
(U.S. dollars in thousands)			Value		Value		Value		Value
	Fixed maturities, held to maturity	$	2,716,357	$	3,006,992	$	2,668,978	$	2,895,668
	Other investments - structured transactions.		314,015		289,874		323,705		297,124
Financial Assets		$	3,030,372	$	3,296,866	$	2,992,683	$	3,192,792
	Deposit liabilities	$	1,600,595	$	1,876,742	$	1,608,108	$	1,809,812
	Notes payable and debt		1,673,921		1,820,193		2,275,327		2,340,148
Financial Liabilities		$	3,274,516	$	3,696,935	$	3,883,435	$	4,149,960