10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

ý 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

¨ 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: 001-35262

REGENCY ENERGY PARTNERS LP

(Exact name of registrant as specified in its charter)

DELAWARE	16-1731691
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
2001 BRYAN STREET, SUITE 3700 DALLAS, TX	75201
(Address of principal executive offices)	(Zip Code)

(214) 750-1771

(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  ý    No  ¨

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 during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  ý    No  ¨

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 small reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	ý	Accelerated filer	¨
Non-accelerated filer	¨  (Do not check if a smaller reporting company)	Smaller reporting company	¨

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

The issuer had 170,113,566 common units outstanding as of August 1, 2012.

FORM 10-Q

TABLE OF CONTENTS

Regency Energy Partners LP

PART I – FINANCIAL INFORMATION
ITEM 1.	FINANCIAL STATEMENTS (Unaudited)
Condensed Consolidated Balance Sheets		1
Condensed Consolidated Statements of Operations		2
Condensed Consolidated Statements of Comprehensive Income		3
Condensed Consolidated Statements of Cash Flows		4
Condensed Consolidated Statement of Partners’ Capital and Noncontrolling Interest		5
Notes to Condensed Consolidated Financial Statements		6
ITEM 2.	MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	19
ITEM 3.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	31
ITEM 4.	CONTROLS AND PROCEDURES	32
PART II – OTHER INFORMATION
ITEM 1.	LEGAL PROCEEDINGS	33
ITEM 1A.	RISK FACTORS	33
ITEM 2.	UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	33
ITEM 3.	DEFAULTS UPON SENIOR SECURITIES	33
ITEM 4.	MINE SAFETY DISCLOSURES	33
ITEM 5.	OTHER INFORMATION	33
ITEM 6.	EXHIBITS	33
SIGNATURE		34

i

Introductory Statement

References in this report to the “Partnership,” “we,” “our,” “us” and similar terms refer to Regency Energy Partners LP and its subsidiaries. We use the following definitions in this quarterly report on Form 10-Q:

Name	Definition or Description
/d	Per day
AOCI	Accumulated Other Comprehensive Income
Bbls	Barrels
BTU	A unit of energy needed to raise the temperature of one pound of water by one degree Fahrenheit
Citi	Citigroup Global Markets Inc.
Edwards Lime	Edwards Lime Gathering, LLC, which is 60% owned by the Partnership
ETC	Energy Transfer Company, the name assumed by La Grange Acquisition, L.P. for conducting business and shared services, a wholly owned subsidiary of ETP
ETE	Energy Transfer Equity, L.P.
ETP	Energy Transfer Partners, L.P.
Finance Corp.	Regency Energy Finance Corp., a wholly-owned subsidiary of the Partnership
GAAP	Accounting principles generally accepted in the United States of America
General Partner	Regency GP LP, the general partner of the Partnership, or Regency GP LLC, the general partner of Regency GP LP, which effectively manages the business and affairs of the partnerships
GPM	Gallons per minute
HPC	RIGS Haynesville Partnership Co., a general partnership in which the Partnership owns a 49.99% interest, and its 100% owned subsidiary, Regency Intrastate Gas LP
IDRs	Incentive Distribution Rights
Lone Star	Lone Star NGL LLC, which is 30% owned by the Partnership and 70% owned by ETP
LTIP	Long-Term Incentive Plan
MEP	Midcontinent Express Pipeline LLC, which is 50% owned by the Partnership
MBbls	One thousand barrels
MMBtu	One million BTUs
MMcf	One million cubic feet
NGLs	Natural gas liquids, including ethane, propane, normal butane, iso butane and natural gasoline
NYMEX	New York Mercantile Exchange
Partnership	Regency Energy Partners LP and its subsidiaries
Ranch JV	Ranch Westex JV LLC, which is 33.33% owned by the Partnership
RGS	Regency Gas Services LP, a wholly-owned subsidiary of the Partnership
RIGS	Regency Intrastate Gas System
SEC	Securities and Exchange Commission
Series A Preferred Units	Series A convertible redeemable preferred units
Services Co.	ETE Services Company, LLC, a wholly owned subsidiary of ETE
WTI	West Texas Intermediate Crude

ii

Cautionary Statement about Forward-Looking Statements

Certain matters discussed in this report include forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”) and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Forward-looking statements are identified as any statement that does not relate strictly to historical or current facts. Statements using words such as “anticipate,” “believe,” “intend,” “project,” “plan,” “expect,” “continue,” “estimate,” “goal,” “forecast,” “may” or similar expressions help identify forward-looking statements. Although we believe our forward-looking statements are based on reasonable assumptions and current expectations and projections about future events, we cannot give assurances that such expectations will prove to be correct. Forward-looking statements are subject to a variety of risks, uncertainties and assumptions including without limitation the following:

•volatility in the price of oil, natural gas, and NGLs;

• declines in the credit markets and the availability of credit for us as well as for producers connected to our pipelines and our gathering and processing facilities, and for our customers of contract compression and contract treating businesses;

• the level of creditworthiness of, and performance by, our counterparties and customers;

• our access to capital to fund organic growth projects and acquisitions, and our ability to obtain debt or equity financing on satisfactory terms;

• our use of derivative financial instruments to hedge commodity and interest rate risks;

• the amount of collateral required to be posted from time-to-time in our transactions;

• changes in commodity prices, interest rates and demand for our services;

• changes in laws and regulations impacting the midstream sector of the natural gas industry, including those that relate to climate change and environmental protection and safety;

• weather and other natural phenomena;

• industry changes including the impact of consolidations and changes in competition;

• regulation of transportation rates on our natural gas and NGL pipelines;

• our ability to obtain indemnification related to cleanup liabilities and to clean up any hazardous materials release on satisfactory terms;

• our ability to obtain required approvals for construction or modernization of our facilities and the timing of production from such facilities; and

• the effect of accounting pronouncements issued periodically by accounting standard setting boards.

If one or more of these risks or uncertainties materialize, or if underlying assumptions prove incorrect, our actual results may differ materially from those anticipated, estimated, projected or expected.

Other factors that could cause our actual results to differ from our projected results are discussed in Item 1A of our December 31, 2011 Annual Report on Form 10-K and our Quarterly Report on Form 10-Q for the quarter ended March 31, 2012.

Each forward-looking statement speaks only as of the date of the particular statement and we undertake no obligation to update or revise any forward-looking statement, whether as a result of new information, future events or otherwise.

iii

PART I – FINANCIAL INFORMATION

Item 1. Financial Statements

Regency Energy Partners LP

Condensed Consolidated Balance Sheets

(in thousands)

(unaudited)

	June 30, 2012			December 31, 2011
ASSETS
Current Assets:
Cash and cash equivalents	$	15,883		$	990
Trade accounts receivable, net of allowance of $973 and $1,190	32,407			43,917
Accrued revenues	76,850			68,011
Related party receivables	20,712			45,204
Derivative assets	14,361			4,374
Other current assets	24,721			24,628
Total current assets	184,934			187,124
Property, plant and equipment:
Property, plant and equipment	2,264,661			2,080,932
Less accumulated depreciation	(272,213		)	(195,404		)
Property, plant and equipment, net	1,992,448			1,885,528
Other Assets:
Investment in unconsolidated affiliates	2,102,503			1,924,705
Long-term derivative assets	1,872			474
Other, net of accumulated amortization of debt issuance costs of $13,257 and $10,186	34,770			39,353
Total other assets	2,139,145			1,964,532
Intangible assets, net of accumulated amortization of $59,492 and $44,856	726,246			740,883
Goodwill	789,789			789,789
TOTAL ASSETS	$	5,832,562		$	5,567,856
LIABILITIES AND PARTNERS’ CAPITAL AND NONCONTROLLING INTEREST
Current Liabilities:
Drafts payable	$	349		$	2,507
Trade accounts payable	65,399			73,462
Accrued cost of gas and liquids	56,043			84,943
Related party payables	35,362			12,625
Deferred revenues, including related party amounts of $52 and $41	13,376			16,225
Derivative liabilities	113			10,535
Other current liabilities	32,034			33,009
Total current liabilities	202,676			233,306
Long-term derivative liabilities	30,644			39,112
Other long-term liabilities	5,721			6,071
Long-term debt, net	1,780,558			1,687,147
Commitments and contingencies
Series A Preferred Units, redemption amount of $85,008 and $84,773	72,370			71,144
Partners’ capital and noncontrolling interest:
Common units	3,367,505			3,173,090
General partner interest	328,272			329,876
Accumulated other comprehensive income (loss)	1,065			(4,759		)
Total partners’ capital	3,696,842			3,498,207
Noncontrolling interest	43,751			32,869
Total partners’ capital and noncontrolling interest	3,740,593			3,531,076
TOTAL LIABILITIES AND PARTNERS’ CAPITAL AND NONCONTROLLING INTEREST	$	5,832,562		$	5,567,856

See accompanying notes to condensed consolidated financial statements

1

Regency Energy Partners LP

Condensed Consolidated Statements of Operations

(in thousands except unit data and per unit data)

(unaudited)

	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
REVENUES
Gas sales, including related party amounts of $3,801, $6,161, $9,281 and $11,639	$	64,042		$	132,800		$	144,937		$	242,887
NGL sales, including related party amounts of $679, $77,048, $22,968 and $150,041	120,984			138,088			280,263			256,339
Gathering, transportation and other fees, including related party amounts of $7,349, $5,254, $14,000 and $11,470	95,265			81,817			195,579			163,653
Net realized and unrealized gain (loss) from derivatives	14,987			(7,542		)	13,803			(9,256		)
Other, including related party amounts of $0, $2,924, $1,478 and $4,790	16,698			11,335			35,293			20,127
Total revenues	311,976			356,498			669,875			673,750
OPERATING COSTS AND EXPENSES
Cost of sales, including related party amounts of $2,697, $7,807, $8,574 and $11,021	186,815			259,475			426,468			475,736
Operation and maintenance	38,992			33,996			79,973			67,556
General and administrative, including related party amounts of $4,300, $4,224, $8,600 and $8,129	16,476			17,551			32,171			36,660
Loss on asset sales, net	1,548			153			1,584			181
Depreciation and amortization	45,132			40,503			96,638			80,739
Total operating costs and expenses	288,963			351,678			636,834			660,872
OPERATING INCOME	23,013			4,820			33,041			12,878
Income from unconsolidated affiliates	34,185			32,167			66,143			55,975
Interest expense, net	(27,934		)	(24,689		)	(57,491		)	(44,696		)
Loss on debt refinancing, net	(7,820		)	—			(7,820		)	—
Other income and deductions, net	7,921			2,641			24,443			5,055
INCOME BEFORE INCOME TAXES	29,365			14,939			58,316			29,212
Income tax expense	38			102			89			70
NET INCOME	29,327			14,837			58,227			29,142
Net income attributable to noncontrolling interest	(649		)	(293		)	(1,048		)	(524		)
NET INCOME ATTRIBUTABLE TO REGENCY ENERGY PARTNERS LP	$	28,678		$	14,544		$	57,179		$	28,618
Amounts attributable to Series A Preferred Units	2,120			1,995			5,117			3,988
General partner’s interest, including IDRs	2,505			1,550			4,993			2,842
Limited partners’ interest in net income	$	24,053		$	10,999		$	47,069		$	21,788
Basic and diluted net income per common unit:
Weighted average number of common units outstanding	170,107,060			142,937,163			164,398,548			140,135,219
Basic income per common unit	$	0.14		$	0.08		$	0.29		$	0.16
Diluted income per common unit	$	0.10		$	0.07		$	0.26		$	0.14
Distributions per common unit	$	0.46		$	0.45		$	0.92		$	0.895

See accompanying notes to condensed consolidated financial statements

2

Regency Energy Partners LP

Condensed Consolidated Statements of Comprehensive Income

(in thousands)

(unaudited)

	Three Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
Net income	$	29,327	$	14,837	$	58,227	$	29,142
Other comprehensive income (loss):
Net cash flow hedge amounts reclassified to earnings	2,159		5,565		5,824		8,994
Change in fair value of cash flow hedges	—		1,530		—		(15,466		)
Total other comprehensive income (loss)	2,159		7,095		5,824		(6,472		)
Comprehensive income	31,486		21,932		64,051		22,670
Comprehensive income attributable to noncontrolling interest	649		293		1,048		524
Comprehensive income attributable to Regency Energy Partners LP	$	30,837	$	21,639	$	63,003	$	22,146

See accompanying notes to condensed consolidated financial statements

3

Regency Energy Partners LP

Condensed Consolidated Statements of Cash Flows

(in thousands)

(unaudited)

	Six Months Ended June 30,
	2012			2011
OPERATING ACTIVITIES:
Net income	$	58,227		$	29,142
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation and amortization, including debt issuance cost and bond premium amortization	99,359			83,587
Income from unconsolidated affiliates	(66,143		)	(55,975		)
Derivative valuation changes	(24,450		)	(5,826		)
Loss on asset sales, net	1,584			181
Unit-based compensation expenses	2,294			1,747
Cash flow changes in current assets and liabilities:
Trade accounts receivable, accrued revenues and related party receivables	21,052			(8,847		)
Other current assets	179			964
Trade accounts payable, accrued cost of gas and liquids, related party payables and deferred revenues	(51,903		)	28,577
Other current liabilities	(976		)	(2,764		)
Distributions received from unconsolidated affiliates	63,096			50,510
Other assets and liabilities	(123		)	(182		)
Net cash flows provided by operating activities	102,196			121,114
INVESTING ACTIVITIES:
Capital expenditures	(197,941		)	(172,236		)
Capital contributions to unconsolidated affiliates	(169,751		)	(591,681		)
Distribution in excess of earnings of unconsolidated affiliates	22,859			27,990
Proceeds from asset sales	20,411			4,003
Net cash flows used in investing activities	(324,422		)	(731,924		)
FINANCING ACTIVITIES:
Net borrowings under revolving credit facility	183,000			45,000
Proceeds from issuance of senior notes	—			500,000
Redemption of senior notes	(87,500		)	—
Debt issuance costs	(686		)	(9,936		)
Drafts payable	(2,158		)	—
Partner distributions	(158,226		)	(131,106		)
Disposition of assets between entities under common control in excess of historical cost	136			25
Contributions from noncontrolling interest	9,834			—
Issuance of common units under LTIP, net of forfeitures and tax withholding	(207		)	506
Common unit offering, net of costs	296,817			203,917
Distributions to Series A Preferred Units	(3,891		)	(3,891		)
Net cash flows provided by financing activities	237,119			604,515
Net change in cash and cash equivalents	14,893			(6,295		)
Cash and cash equivalents at beginning of period	990			9,400
Cash and cash equivalents at end of period	$	15,883		$	3,105
Non-cash Investing Activities:
Accrued capital expenditures and contributions to unconsolidated affiliates	$	58,940		$	14,598

See accompanying notes to condensed consolidated financial statements

4

Regency Energy Partners LP

Condensed Consolidated Statement of Partners' Capital and Noncontrolling Interest

(in thousands except unit data)

(unaudited)

	Regency Energy Partners LP
	Units
	Common	Common Unitholders			General Partner Interest			Accumulated Other Comprehensive Income (Loss)			Noncontrolling Interest		Total
Balance - December 31, 2011	157,437,608	$	3,173,090		$	329,876		$	(4,759	)	$	32,869	$	3,531,076
Common unit offering, net of costs	12,650,000	296,817			—			—			—		296,817
Issuance of common units under LTIP, net of forfeitures and tax withholding	25,958	(207		)	—			—			—		(207		)
Unit-based compensation expenses	—	2,294			—			—			—		2,294
Transfer of assets between entities under common control in excess of historical cost	—	—			136			—			—		136
Partner distributions	—	(151,579		)	(6,647		)	—			—		(158,226		)
Accrued distributions to phantom units	—	(65		)	—			—			—		(65		)
Net income	—	52,186			4,993			—			1,048		58,227
Contributions from noncontrolling interest	—	—			—			—			9,834		9,834
Distributions to Series A Preferred Units	—	(3,826		)	(65		)	—			—		(3,891		)
Accretion of Series A Preferred Units	—	(1,205		)	(21		)	—			—		(1,226		)
Net cash flow hedge amounts reclassified to earnings	—	—			—			5,824			—		5,824
Balance - June 30, 2012	170,113,566	$	3,367,505		$	328,272		$	1,065		$	43,751	$	3,740,593

See accompanying notes to condensed consolidated financial statements

5

Regency Energy Partners LP

Notes to Condensed Consolidated Financial Statements

(Tabular dollar amounts, except per unit data, are in thousands)

(unaudited)

1. Organization and Summary of Significant Accounting Policies

Organization. The unaudited condensed consolidated financial statements presented herein contain the results of Regency Energy Partners LP and its subsidiaries ("Partnership"), a Delaware limited partnership. The Partnership and its subsidiaries are engaged in the business of gathering and processing, contract compression, treating and transportation of natural gas and the transportation, fractionation and storage of NGLs. Regency GP LP is the Partnership’s general partner and Regency GP LLC (collectively the “General Partner”) is the general partner of Regency GP LP.

Basis of Presentation. The unaudited financial information included in this Form 10-Q has been prepared on the same basis as the audited consolidated financial statements included in the Partnership’s Annual Report on Form 10-K for the year ended December 31, 2011. In the opinion of the Partnership’s management, such financial information reflects all adjustments necessary for a fair presentation of the financial position and the results of operations for such interim periods in accordance with GAAP. All intercompany items and transactions have been eliminated in consolidation. Certain information and footnote disclosures normally included in annual consolidated financial statements prepared in accordance with GAAP have been omitted pursuant to the rules and regulations of the SEC.

Use of Estimates. The unaudited condensed consolidated financial statements have been prepared in conformity with GAAP, which includes the use of estimates and assumptions made by management that affect the reported amounts of assets, liabilities, revenues, expenses and disclosure of contingent assets and liabilities that exist at the date of the condensed consolidated financial statements. Although these estimates are based on management’s available knowledge of current and expected future events, actual results could be different from those estimates.

Property, Plant and Equipment. In March 2012, the Partnership recorded a $6.9 million “out-of-period” adjustment to depreciation expense to correct the estimated useful lives of certain assets to comply with its policy. The adjustment to depreciation expense related to the year ended December 31, 2011 and the period from May 26, 2010 to December 31, 2010 was $4.4 million and $2.5 million, respectively. The adjustment to depreciation expense related to the three and six months ended June 30, 2011 was $1.1 million and $2.2 million, respectively.

2. Partners' Capital and Distributions

Equity Distribution Agreement. On June 19, 2012, the Partnership entered into an Equity Distribution Agreement with Citi under which the Partnership may offer and sell common units, representing limited partner interests, having an aggregate offering price of up to $200 million from time to time through Citi, as sales agent for the Partnership. Sales of these units, if any, made from time to time under the Equity Distribution Agreement will be made by means of ordinary brokers’ transactions on the New York Stock Exchange at market prices, in block transactions, or as otherwise agreed upon by the Partnership and Citi. Under the terms of this agreement, the Partnership may also sell common units to Citi as principal for its own account at a price agreed upon at the time of sale. Any sale of common units to Citi as principal would be pursuant to the terms of a separate agreement between the Partnership and Citi. The Partnership intends to use the net proceeds from the sale of these units for general partnership purposes. As of June 30, 2012, the Partnership has not issued any common units pursuant to this agreement.

Quarterly Distributions of Available Cash. Following are distributions declared by the Partnership subsequent to December 31, 2011:

Quarter Ended	Record Date	Payment Date	Cash Distributions (per common unit)
December 31, 2011	February 6, 2012	February 13, 2012	$0.46
March 31, 2012	May 7, 2012	May 14, 2012	$0.46
June 30, 2012	August 6, 2012	August 14, 2012	$0.46

Common Unit Offering. In March 2012, the Partnership issued 12,650,000 common units representing limited partner interests in a public offering at a price of $24.47 per common unit, resulting in net proceeds of $296.8 million. In May 2012, the Partnership used the net proceeds from this offering to redeem 35%, or $87.5 million, in aggregate principal amounts of its outstanding senior notes due 2016; pay related premium, expenses and accrued interest; and repay outstanding borrowings under the revolving credit facility.

6

3. Income per Common Unit

The following tables provide a reconciliation of the numerator and denominator of the basic and diluted earnings per common unit computations for the three and six months ended June 30, 2012 and 2011:

	Three Months Ended June 30,
	2012						2011
	Income (Numerator)			Units (Denominator)	Per-Unit Amount		Income (Numerator)			Units (Denominator)	Per-Unit Amount
Basic income per unit
Limited Partners’ interest in net income	$	24,053		170,107,060	$	0.14	$	10,999		142,937,163	$	0.08
Effect of Dilutive Securities:
Common unit options	—			8,474			—			25,826
Phantom units *	—			288,644			—			237,747
Series A Preferred Units	(5,789		)	4,645,229			(955		)	4,614,250
Diluted income per unit	$	18,264		175,049,407	$	0.10	$	10,044		147,814,986	$	0.07

	Six Months Ended June 30,
	2012						2011
	Income (Numerator)			Units (Denominator)	Per-Unit Amount		Income (Numerator)			Units (Denominator)	Per-Unit Amount
Basic income per unit
Limited Partners’ interest in net income	$	47,069		164,398,548	$	0.29	$	21,788		140,135,219	$	0.16
Effect of Dilutive Securities:
Common unit options	—			15,033			—			28,403
Phantom units *	—			325,129			—			231,251
Series A Preferred Units	(3,288		)	4,645,229			(1,537		)	4,584,192
Diluted income per unit	$	43,781		169,383,939	$	0.26	$	20,251		144,979,065	$	0.14

__________________

* Amount assumes maximum conversion rate for market condition awards.

4. Investment in Unconsolidated Affiliates

As of June 30, 2012, the Partnership has a 49.99% general partner interest in HPC, 50% membership interest in MEP, 30% membership interest in Lone Star, and 33.33% membership interest in Ranch JV. The carrying value of the Partnership's investment in each of the unconsolidated affiliates as of June 30, 2012 and December 31, 2011 is as follows:

	June 30, 2012		December 31, 2011
HPC	$	673,510	$	682,046
MEP	596,696		613,942
Lone Star	809,958		628,717
Ranch JV	22,339		—
	$	2,102,503	$	1,924,705

7

The following tables summarize the Partnership's investment activities in each of the unconsolidated affiliates for the three and six months endedJune 30, 2012 and 2011:

	Three Months Ended June 30, 2012
	HPC			MEP		Lone Star		Ranch JV
Contributions to unconsolidated affiliates	$	—		$	—	$	95,414	$	8,944
Distributions from unconsolidated affiliates	13,871			18,796		10,787		—
Share of unconsolidated affiliates' net income (loss)	13,108			10,189		12,366		(17		)
Amortization of excess fair value of investment	(1,461		)	—		—		—

	Three Months Ended June 30, 2011
	HPC			MEP		Lone Star(1)		Ranch JV
Contributions to unconsolidated affiliates	$	—		$	—	$	591,681	N/A
Distributions from unconsolidated affiliates	18,113			18,222		—		N/A
Share of unconsolidated affiliates' net income	15,130			10,110		8,388		N/A
Amortization of excess fair value of investment	(1,461		)	—		—		N/A

	Six Months Ended June 30, 2012
	HPC			MEP		Lone Star		Ranch JV
Contributions to unconsolidated affiliates	$	—		$	—	$	175,254	$	22,356
Distributions from unconsolidated affiliates	30,030			38,182		17,743		—
Share of unconsolidated affiliates' net income (loss)	24,417			20,936		23,730		(17		)
Amortization of excess fair value of investment	(2,923		)	—		—		—

	Six Months Ended June 30, 2011
	HPC			MEP		Lone Star(1)		Ranch JV
Contributions to unconsolidated affiliates	$	—		$	—	$	591,681	N/A
Distributions from unconsolidated affiliates	34,841			43,659		—		N/A
Share of unconsolidated affiliates' net income	30,205			20,305		8,388		N/A
Amortization of excess fair value of investment	(2,923		)	—		—		N/A

__________________

(1) For the period from initial contribution, May 2, 2011, to June 30, 2011.

N/A The Partnership acquired a 33.33% membership interest in Ranch JV in December 2011.

The following tables present selected income statement data for each of the unconsolidated affiliates, on a 100% basis, for the three and six months endedJune 30, 2012 and 2011:

	Three Months Ended June 30, 2012
	HPC		MEP		Lone Star		Ranch JV
Total revenues	$	46,324	$	64,969	$	157,591	$	130
Operating income (loss)	26,680		33,274		40,066		(27		)
Net income (loss)	26,222		20,377		41,220		(27		)
	Three Months Ended June 30, 2011
	HPC		MEP		Lone Star(1)		Ranch JV
Total revenues	$	48,585	$	64,943	$	98,820	N/A
Operating income	30,515		33,190		28,143		N/A
Net income	30,265		20,276		27,958		N/A

8

	Six Months Ended June 30, 2012
	HPC		MEP		Lone Star		Ranch JV
Total revenues	$	88,140	$	131,129	$	324,586	$	130
Operating income (loss)	49,649		67,663		78,620		(51		)
Net income (loss)	48,844		41,871		79,101		(51		)
	Six Months Ended June 30, 2011
	HPC		MEP		Lone Star(1)		Ranch JV
Total revenues	$	97,234	$	129,767	$	98,820	N/A
Operating income	60,842		66,455		28,143		N/A
Net income	60,421		40,686		27,958		N/A

__________________

(1) For the period from initial contribution, May 2, 2011, to June 30, 2011.

N/A The Partnership acquired a 33.33% membership interest in Ranch JV in December 2011.

5. Derivative Instruments

Policies. The Partnership established comprehensive risk management policies and procedures to monitor and manage the market risks associated with commodity prices, counterparty credit and interest rates. The General Partner is responsible for delegation of transaction authority levels, and the Audit and Risk Committee of the General Partner is responsible for the oversight of these risks, including monitoring exposure limits. The Audit and Risk Committee receives regular briefings on exposures and overall risk management in the context of market activities.

Commodity Price Risk. The Partnership is a net seller of NGLs, condensate and natural gas as a result of its gathering and processing operations. The prices of these commodities are impacted by changes in the supply and demand as well as market forces. Both the Partnership's profitability and cash flow are affected by the inherent volatility of these commodities which could adversely affect its ability to make distributions to its unitholders. The Partnership manages this commodity price exposure through an integrated strategy that includes management of its contract portfolio, matching sales prices of commodities with purchases, optimization of its portfolio by monitoring basis and other price differentials in operating areas, and the use of derivative contracts. In some cases, the Partnership may not be able to match pricing terms or cover its risk to price exposure with financial hedges, and it may be exposed to commodity price risk. Speculative positions with derivative contracts are prohibited under the Partnership's policies.

The Partnership has swap contracts settled against NGLs (ethane, propane, butane, and natural gasoline), condensate and natural gas market prices. The Partnership also has put options to protect against falling ethane prices.

On January 1, 2012, the Partnership de-designated its swap contracts and began accounting for these contracts using the mark-to-market method of accounting. As of June 30, 2012, the Partnership has $1.1 million in net hedging gains in accumulated other comprehensive income which will be amortized to earnings over the next 1.75 years. Over the next 12 months, the Partnership will amortize $0.8 million in net hedging losses to income.

Interest Rate Risk. The Partnership is exposed to variable interest rate risk as a result of borrowings under its revolving credit facility. The Partnership's $250 million interest rate swaps expired in April 2012.

Credit Risk. The Partnership's resale of NGLs, condensate and natural gas exposes it to credit risk, as the margin on any sale is generally a very small percentage of the total sales price. Therefore, a credit loss can be very large relative to overall profitability on these transactions. The Partnership attempts to ensure that it issues credit only to credit-worthy counterparties and that in appropriate circumstances any such extension of credit is backed by adequate collateral, such as a letter of credit or parental guarantee from a parent company.

The Partnership is exposed to credit risk from its derivative counterparties. The Partnership does not require collateral from these counterparties. The Partnership deals primarily with financial institutions when entering into financial derivatives, and utilizes master netting agreements that allow for netting of swap contract receivables and payables in the event of default by either party. If the Partnership's counterparties fail to perform under existing swap contracts, the Partnership's maximum loss as of June 30, 2012 would be $16.2 million. The Partnership has elected to present assets and liabilities under master netting agreements gross on the condensed consolidated balance sheets.

9

Embedded Derivatives. The Series A Preferred Units contain embedded derivatives which are required to be bifurcated and accounted for separately, such as the holders' conversion option and the Partnership's call option. These embedded derivatives are accounted for using mark-to-market accounting. The Partnership does not expect the embedded derivatives to affect its cash flows.

The Partnership’s derivative assets and liabilities, including credit risk adjustments, as of June 30, 2012 and December 31, 2011 are detailed below:

	Assets				Liabilities
	June 30, 2012		December 31, 2011		June 30, 2012		December 31, 2011
Derivatives designated as cash flow hedges:
Current amounts
Commodity contracts	$	—	$	4,065	$	—	$	10,065
Long-term amounts
Commodity contracts	—		474		—		63
Total cash flow hedging instruments	—		4,539		—		10,128
Derivatives not designated as cash flow hedges:
Current amounts
Commodity contracts	12,838		—		113		—
Ethane put options	1,523		309		—		—
Interest rate swap contracts	—		—		—		470
Long-term amounts
Commodity contracts	1,872		—		—		—
Embedded derivatives in Series A Preferred Units	—		—		30,644		39,049
Total derivatives not designated as cash flow hedges	16,233		309		30,757		39,519
Total derivatives	$	16,233	$	4,848	$	30,757	$	49,647

The Partnership’s statements of operations and comprehensive income for the three and six months endedJune 30, 2012 and 2011 were impacted by derivative instruments activities as follows:

		Three Months Ended June 30,
		2012			2011
Derivatives in cash flow hedging relationships:		Change in Value Recognized in AOCI on Derivatives (Effective Portion)
Commodity derivatives		$	—		$	1,530
Derivatives in cash flow hedging relationships:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) Reclassified from AOCI into Income (Effective Portion)
Commodity derivatives	Revenues	$	—		$	(7,133	)
Derivatives in cash flow hedging relationships:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) Recognized in Income on Ineffective Portion
Commodity derivatives	Revenues	$	—		$	(362	)
Derivatives not designated in a hedging relationship:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) from Dedesignation Amortized from AOCI into Income
Commodity derivatives	Revenues	$	(2,159	)	$	—
Derivatives not designated in a hedging relationship:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) Recognized in Income on Derivatives
Commodity derivatives	Revenues	$	17,146		$	(47	)
Interest rate swap contracts	Interest expense, net	—			(228		)
Embedded derivatives in Series A Preferred Units	Other income &  deductions, net	7,909			2,950
		$	25,055		$	2,675

10

		Six Months Ended June 30,
		2012			2011
Derivatives in cash flow hedging relationships:		Change in Value Recognized in AOCI on Derivatives (Effective Portion)
Commodity derivatives		$	—		$	(15,466	)
Derivatives in cash flow hedging relationships:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) Reclassified from AOCI into Income (Effective Portion)
Commodity derivatives	Revenues	$	—		$	(8,994	)
Derivatives in cash flow hedging relationships:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) Recognized in Income on Ineffective Portion
Commodity derivatives	Revenues	$	—		$	(274	)
Derivatives not designated in a hedging relationship:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) from Dedesignation Amortized from AOCI into Income
Commodity derivatives	Revenues	$	(5,824	)	$	—
Derivatives not designated in a hedging relationship:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) Recognized in Income on Derivatives
Commodity derivatives	Revenues	$	19,627		$	12
Interest rate swap contracts	Interest expense, net	(12		)	(487		)
Embedded derivatives in Series A Preferred Units	Other income &  deductions, net	8,405			5,525
		$	28,020		$	5,050

6. Long-term Debt

Obligations in the form of senior notes and borrowings under the revolving credit facility are as follows:

	June 30, 2012			December 31, 2011
Senior notes	$	1,265,558		$	1,355,147
Revolving loans	515,000			332,000
Total	1,780,558			1,687,147
Less: current portion	—			—
Long-term debt	$	1,780,558		$	1,687,147
Availability under revolving credit facility:
Total credit facility limit	$	900,000		$	900,000
Revolving loans	(515,000		)	(332,000		)
Letters of credit	(9,000		)	(19,000		)
Total available	$	376,000		$	549,000

Scheduled maturities of long-term debt at June 30, 2012 are as follows:

Years Ending December 31,	Amount
2012 (remainder)	$	—
2013	—
2014	515,000
2015	—
2016	162,500
Thereafter	1,100,000
Total	$	1,777,500	*

__________________

* Excludes unamortized premiums of $3.1 million as of June 30, 2012.

11

Revolving Credit Facility. The weighted average interest rate on the total amounts outstanding under the Partnership's revolving credit facility was 2.88% and 2.77% as of June 30, 2012 and 2011, respectively.

Senior Notes. In May 2012, the Partnership exercised its option to redeem 35% or $87.5 million of its outstanding senior notes due 2016 at a price of 109.375% of the principal amount plus accrued interest.

At June 30, 2012, the Partnership was in compliance with all debt covenants.

Finance Corp., co-issuer for all of the Partnership’s senior notes, has no operations and will not have revenues other than as may be incidental. The senior notes due in years 2016, 2018 and 2021 are fully unconditional and jointly and severally guaranteed by all of the Partnership’s current consolidated subsidiaries, other than Finance Corp. and a minor subsidiary, and by certain of its future subsidiaries. The senior notes and the guarantees are unsecured and rank equally with all of the Partnership’s and the guarantors’ existing and future unsecured obligations. The senior notes and the guarantees will be senior in right of payment to any of the Partnership’s and the guarantors’ future obligations that are, by their terms, expressly subordinated in right of payment to the notes and the guarantees. The senior notes and the guarantees will be effectively subordinated to the Partnership’s and the guarantors’ secured obligations, including the Partnership’s revolving credit facility, to the extent of the value of the assets securing such obligations.

7. Commitments and Contingencies

Legal. The Partnership is involved in various claims, lawsuits and audits by taxing authorities incidental to its business. These claims and lawsuits in the aggregate are not expected to have a material adverse effect on the Partnership’s business, financial condition, results of operations or cash flows.

Keyes Litigation. In August 2008, Keyes Helium Company, LLC (“Keyes”) filed suit against RGS, the Partnership, the General Partner and various other subsidiaries. Keyes entered into an output contract with the Partnership’s predecessor-in-interest in 1996 under which it purchased all of the helium produced at the Lakin, Kansas processing plant. In September 2004, the Partnership decided to shut down its Lakin plant and contract with a third party for the processing of volumes processed at Lakin; as a result, the Partnership no longer delivered any helium to Keyes. In its suit, Keyes alleges it is entitled to damages for the costs of covering its purchases of helium. On May 7, 2010, the jury rendered a verdict in favor of the Partnership. No damages were awarded to the Plaintiffs. Plaintiffs have appealed the verdict. The hearing on appeal took place on April 24, 2012. A decision is not expected for at least several months.

8. Series A Preferred Units

On September 2, 2009, the Partnership issued 4,371,586 Series A Preferred Units. As of June 30, 2012, the Series A Preferred Units were convertible to 4,645,229 common units, and if outstanding, are mandatorily redeemable on September 2, 2029 for $80 million plus all accrued but unpaid distributions and interest thereon. The Series A Preferred Units receive fixed quarterly cash distributions of $0.445 per unit if outstanding on the record dates of the Partnership’s common unit distributions. Holders can elect to convert Series A Preferred Units to common units at any time in accordance with the partnership agreement.

The following table provides a reconciliation of the beginning and ending balances of the Series A Preferred Units for the six months ended June 30, 2012:

	Units	Amount
Outstanding at beginning of period	4,371,586	$	71,144
Accretion to redemption value	—	1,226
Outstanding at end of period	4,371,586	$	72,370	*

__________________

* This amount will be accreted to $80 million plus any accrued but unpaid distributions and interest by deducting amounts from partners’ capital over the remaining periods until the mandatory redemption date of September 2, 2029.

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9. Related Party Transactions

Transactions with ETE and its subsidiaries. Under the service agreement with Services Co., the Partnership pays Services Co.’s direct expenses for services performed, plus an annual fee of $10 million, and receives the benefit of any cost savings recognized for these services. The services agreement has a five year term which expires May 26, 2015, subject to earlier termination rights in the event of a change in control, the failure to achieve certain cost savings for the Partnership or upon an event of default. The Partnership also, together with the General Partner and RGS, entered into an operation and service agreement (the “Operations Agreement”) with ETC. Under the Operations Agreement, ETC will perform certain operations, maintenance and related services reasonably required to operate and maintain certain facilities owned by the Partnership. Pursuant to the Operations Agreement, the Partnership will reimburse ETC for actual costs and expenses incurred in connection with the provision of these services based on an annual budget agreed-upon by both parties. The Operations Agreement automatically renews on a year-to-year basis upon expiration of the initial term. The Partnership incurred total service fees of $4.3 million and $4.2 million for the three months ended June 30, 2012 and 2011, respectively, and $8.6 million and $8.1 million for the six months ended June 30, 2012 and 2011, respectively.

In conjunction with distributions by the Partnership on the basis of limited and general partner interests, ETE received cash distributions of $15.5 million and $14.1 million for the three months ended June 30, 2012 and 2011, respectively, and $31 million and $28.1 million for the for the six months ended June 30, 2012 and 2011, respectively.

The Partnership's Gathering and Processing segment, in the ordinary course of business, sells natural gas and NGLs to subsidiaries of ETE and records the revenue in gas sales and NGL sales. The Partnership’s Contract Compression segment provides contract compression services to subsidiaries of ETP and records revenue in gathering, transportation and other fees. The Partnership’s Contract Compression segment sold compression equipment to a subsidiary of ETP for $0.8 million and $5.5 million for the three months ended June 30, 2012 and 2011, respectively, and $0.8 million and $6.3 million for the six months ended June 30, 2012 and 2011.

Pursuant to the Partnership agreement, the General Partner receives a monthly reimbursement for all direct and indirect expenses incurred on behalf of the Partnership. Effective January 1, 2011, certain employees of the Partnership became employees of ETP, and the Partnership reimburses ETP for all direct and indirect expenses incurred on behalf of the Partnership related to those employees. Reimbursements were recorded to the General Partner for $11 million and $4.2 million during the three months ended June 30, 2012 and 2011, respectively, and $24.8 million and $24.6 million during the six months ended June 30, 2012 and 2011, respectively, in the Partnership’s financial statements as operating expenses or general and administrative expenses. Reimbursements were also recorded to ETP for $6.2 million and $3.1 million during the three months ended June 30, 2012 and 2011, respectively, and $14.5 million and $8.6 million during the six months ended June 30, 2012 and 2011, respectively, in the Partnership’s financial statements as operating expenses or general and administrative expenses.

Transactions with HPC. Under a Master Services Agreement with HPC, the Partnership operates and provides all employees and services for the operation and management of HPC. Related party general and administrative expenses reimbursed to the Partnership were $5.1 million and $4.2 million for the three months ended June 30, 2012 and 2011, respectively, and $9.3 million and $8.4 million for the six months ended June 30, 2012 and 2011, respectively, which are recorded in gathering, transportation and other fees.

The Partnership’s Contract Compression segment provides contract compression services to HPC and records revenues in gathering, transportation and other fees. The Partnership also receives transportation services from HPC and records those as cost of sales.

13

10. Segment Information

The Partnership has the following five reportable segments:

Gathering and Processing. The Partnership provides “wellhead-to-market” services to producers of natural gas, which include transporting raw natural gas from the wellhead through gathering systems, processing raw natural gas to separate NGLs from the raw natural gas and selling or delivering pipeline-quality natural gas and NGLs to various markets and pipeline systems. This segment also includes the Partnership's investment in Ranch JV, which processes natural gas delivered from the NGLs-rich Bone Spring and Avalon shale formations in west Texas. The Partnership initially included Ranch JV in the Joint Ventures segment upon formation in December 2011 until March 31, 2012, during which time Ranch JV's only activity was the construction of capital projects.

Joint Ventures. The Partnership's Joint Ventures segment includes the following:

◦ a 49.99% general partner interest in HPC, which owns RIGS, a 450 mile intrastate pipeline that delivers natural gas from northwest Louisiana to downstream pipelines and markets;

◦ a 50% membership interest in MEP, which owns an interstate natural gas pipeline with approximately 500 miles stretching from southeast Oklahoma through northeast Texas, northern Louisiana and central Mississippi to an interconnect with the Transcontinental Gas Pipe Line system in Butler, Alabama; and

◦ a 30% membership interest in Lone Star, an entity owning a diverse set of midstream energy assets including NGL pipelines, storage, fractionation and processing facilities located in the states of Texas, Mississippi and Louisiana.

Contract Compression. The Partnership owns and operates a fleet of compressors used to provide turn-key natural gas compression services for customer specific systems.

Contract Treating. The Partnership owns and operates a fleet of equipment used to provide treating services, such as carbon dioxide and hydrogen sulfide removal, natural gas cooling, dehydration and BTU management, to natural gas producers and midstream pipeline companies.

Corporate and Others. The Corporate and Others segment comprises a small regulated pipeline and the Partnership’s corporate offices.

The Partnership accounts for intersegment revenues as if the revenues were to third parties, exclusive of certain cost of capital charges.

Management evaluates the performance of each segment and makes capital allocation decisions through the separate consideration of segment margin and operation and maintenance expenses. Segment margin for the Gathering and Processing and the Corporate and Others segments is defined as total revenues, including service fees, less cost of sales. In the Contract Compression segment and Contract Treating segment, segment margin is defined as revenues less direct costs.

Management believes segment margin is an important measure because it directly relates to volume, commodity price changes, revenue generating horsepower and revenue generating gallons per minute. Operation and maintenance expenses are a separate measure used by management to evaluate performance of field operations. Direct labor, insurance, property taxes, repair and maintenance, utilities and contract services comprise the most significant portion of operation and maintenance expenses. These expenses fluctuate depending on the activities performed during a specific period. The Partnership does not deduct operation and maintenance expenses from total revenues in calculating segment margin because management separately evaluates commodity volume and price changes in segment margin. The Partnership does not record segment margin for the Joint Ventures segment because it records its ownership percentages of the net income of its unconsolidated affiliates as income from unconsolidated affiliates in accordance with the equity method of accounting.

14

Results for each period, together with amounts related to balance sheets for each segment, are shown below:

	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
External Revenues
Gathering and Processing	$	263,100		$	303,203		$	570,267		$	569,175
Joint Ventures	—			—			—			—
Contract Compression	36,237			38,072			73,438			76,508
Contract Treating	7,388			10,842			16,523			19,275
Corporate and Others	5,251			4,381			9,647			8,792
Eliminations	—			—			—			—
Total	$	311,976		$	356,498		$	669,875		$	673,750
Intersegment Revenues
Gathering and Processing	$	—		$	—		$	—		$	—
Joint Ventures	—			—			—			—
Contract Compression	4,432			2,917			8,561			9,470
Contract Treating	685			—			1,179			—
Corporate and Others	53			110			109			177
Eliminations	(5,170		)	(3,027		)	(9,849		)	(9,647		)
Total	$	—		$	—		$	—		$	—
Segment Margin
Gathering and Processing	$	79,416		$	50,495		$	150,751		$	104,295
Joint Ventures	—			—			—			—
Contract Compression	38,015			36,973			77,001			78,413
Contract Treating	7,241			7,701			15,124			14,952
Corporate and Others	5,497			4,762			10,145			9,815
Eliminations	(5,008		)	(2,908		)	(9,614		)	(9,461		)
Total	$	125,161		$	97,023		$	243,407		$	198,014
Operation and Maintenance
Gathering and Processing	$	28,791		$	19,528		$	57,014		$	42,470
Joint Ventures	—			—			—			—
Contract Compression	14,142			16,310			30,549			32,702
Contract Treating	822			675			1,666			1,409
Corporate and Others	245			397			358			442
Eliminations	(5,008		)	(2,914		)	(9,614		)	(9,467		)
Total	$	38,992		$	33,996		$	79,973		$	67,556

15

The table below provides a reconciliation of total segment margin to income before income taxes:

	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012				2011
Total segment margin	$	125,161		$	97,023		$	243,407			$	198,014
Operation and maintenance	(38,992		)	(33,996		)	(79,973		)		(67,556		)
General and administrative	(16,476		)	(17,551		)	(32,171		)		(36,660		)
Loss on asset sales, net	(1,548		)	(153		)	(1,584		)		(181		)
Depreciation and amortization	(45,132		)	(40,503		)	(96,638		)		(80,739		)
Income from unconsolidated affiliates	34,185			32,167			66,143				55,975
Interest expense, net	(27,934		)	(24,689		)	(57,491		)		(44,696		)
Loss on debt refinancing, net	(7,820		)	—			(7,820		)		—
Other income and deductions, net	7,921			2,641			24,443			*	5,055
Income before income taxes	$	29,365		$	14,939		$	58,316			$	29,212

__________________

* Other income and deductions, net for the six months ended June 30, 2012 included a one-time producer payment of $15.6 million related to an assignment of certain contracts.

The table below provides a listing of assets reflected in the consolidated balance sheet for each segment:

	June 30, 2012		December 31, 2011
Gathering and Processing	$	2,062,306	$	1,959,697
Joint Ventures	2,080,163		1,924,705
Contract Compression	1,405,989		1,405,600
Contract Treating	219,377		215,172
Corporate and Others	64,727		62,682
Total	$	5,832,562	$	5,567,856

11. Equity-Based Compensation

The Partnership’s LTIP for its employees, directors and consultants authorizes grants up to 5,865,584 common units. LTIP compensation expense of $1 million and $0.8 million, is recorded in general and administrative expense for the three months ended June 30, 2012 and 2011, respectively, and $2.3 million and $1.7 million for the six months ended June 30, 2012 and 2011, respectively.

Common Unit Options. There was no common unit option activity for the six months ended June 30, 2012. The aggregate intrinsic value and weighted average contractual term in years as of June 30, 2012 for the outstanding and exercisable common unit options was $0.3 million and 3.9 years, respectively. During the six months ended June 30, 2011, the Partnership received $0.7 million in proceeds from the exercise of unit options.

Phantom Units. All phantom units granted prior to November 2010 were in substance two grants composed of (1) service condition grants with graded vesting over three years and (2) market condition grants with cliff vesting based upon the Partnership’s relative ranking in total unitholder return among 20 peer companies. Distributions related to these unvested phantom units will be accrued and paid upon vesting. All phantom units granted after November 2010 were service condition grants only with graded vesting over five years. Distributions related to these unvested phantom units will be paid concurrent with the Partnership’s distribution for common units.

16

The following table presents phantom units activity for the six months ended June 30, 2012:

Phantom Units	Units		Weighted Average Grant Date Fair Value
Outstanding at beginning of period	1,086,393		$	24.51
Service condition grants	7,250		24.40
Vested service condition	(23,553	)	22.96
Vested market condition	(10,200	)	19.52
Forfeited service condition	(64,934	)	24.90
Forfeited market condition	(3,750	)	19.52
Outstanding at end of period	991,206		24.59

The Partnership expects to recognize $17.8 million of compensation expense related to non-vested phantom units over a period of 3.8 years.

12. Fair Value Measures

The Partnership's financial assets and liabilities measured at fair value on a recurring basis are derivatives related to interest rate swaps, commodity swaps, ethane put options and embedded derivatives in the Series A Preferred Units. Derivatives related to interest rate swaps, commodity swaps and ethane put options are valued using discounted cash flow techniques. These techniques incorporate Level 1 and Level 2 inputs such as future interest rates and commodity prices. These market inputs are utilized in the discounted cash flow calculation considering the instrument's term, notional amount, discount rate and credit risk and are classified as Level 2 in the hierarchy. Embedded derivatives related to Series A Preferred Units are valued using a binomial lattice model. The market inputs utilized in the model include credit spread, probabilities of the occurrence of certain events, common unit price, dividend yield, and expected volatility, and are classified as Level 3 in the hierarchy.

The following table presents the Partnership's derivative assets and liabilities measured at fair value on a recurring basis:

	Fair Value Measurements at June 30, 2012						Fair Value Measurements at December 31, 2011
	Fair Value Total		Significant Observable Inputs (Level 2)		Unobservable Inputs (Level 3)		Fair Value Total		Significant Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
Assets:
Commodity Derivatives:
Natural Gas	$	3,055	$	3,055	$	—	$	3,907	$	3,907	$	—
NGLs	7,681		7,681		—		94		94		—
Condensate	3,974		3,974		—		538		538		—
Ethane - Put Options	1,523		1,523		—		309		309		—
Total Assets	$	16,233	$	16,233	$	—	$	4,848	$	4,848	$	—
Liabilities:
Interest Rate Derivatives	$	—	$	—	$	—	$	470	$	470	$	—
Commodity Derivatives:
Natural Gas	113		113		—		—		—		—
NGLs	—		—		—		8,561		8,561		—
Condensate	—		—		—		1,567		1,567		—
Embedded Derivatives in Series A Preferred Units	30,644		—		30,644		39,049		—		39,049
Total Liabilities	$	30,757	$	113	$	30,644	$	49,647	$	10,598	$	39,049

17

The following table presents the material unobservable inputs used to estimate the fair value of the embedded derivatives in the Series A Preferred Units:

Unobservable Input	June 30, 2012
Credit Spread	6.83	%
Volatility	18.02	%

Changes in the Partnership's cost of equity and U.S. Treasury yields would cause a change in the credit spread used to value the embedded derivatives. Changes in the Partnership's historical unit price volatility would cause a change in the volatility used to value the embedded derivatives.

The following table presents the changes in Level 3 derivatives measured on a recurring basis for the six months ended June 30, 2012. There were no transfers between the fair value hierarchy levels for the six months ended June 30, 2012.

	Embedded Derivatives in Series A Preferred Units
Balance at December 31, 2011	$	39,049
Change in fair value	(8,405		)
Balance at June 30, 2012	$	30,644

The carrying amount of cash and cash equivalents, accounts receivable and accounts payable approximate fair value due to their short-term maturities. Long-term debt, other than the senior notes, is comprised of borrowings under which interest accrues under a floating interest rate structure. Accordingly, the carrying value approximates fair value.

The aggregate fair value and carrying amount of our senior notes at June 30, 2012 was $1.35 billion and $1.26 billion, respectively. As of December 31, 2011, the aggregate fair value and carrying amount of our senior notes was $1.44 billion and $1.35 billion, respectively. The fair value of our senior notes are a Level 1 valuation based on third party market value quotations.

18

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

(Tabular dollar amounts are in thousands)

The following discussion analyzes our financial condition and results of operations. You should read the following discussion of our financial condition and results of operations in conjunction with our historical condensed consolidated financial statements and the notes included elsewhere in this document.

OVERVIEW. We are a growth-oriented publicly-traded Delaware limited partnership formed in 2005 engaged in the gathering and processing, contract compression, treating and transportation of natural gas and the transportation, fractionation and storage of NGLs. We focus on providing midstream services in some of the most prolific natural gas producing regions in the United States, including the Eagle Ford, Haynesville, Barnett, Fayetteville, Marcellus, Bone Spring and Avalon shales and the mid-continent region. Our assets are located in Texas, Louisiana, Arkansas, Pennsylvania, California, Mississippi, Alabama, West Virginia and the mid-continent region of the United States, which includes Kansas, Colorado and Oklahoma.

RECENT DEVELOPMENTS. In May 2012, we announced the construction of an expansion to Edwards Lime in the Eagle Ford shale ("Edwards Lime Expansion") which will increase the system's capacity by 90 MMcf/d to 160 MMcf/d, and will provide for additional crude transportation and stabilization capacity of 17,000 Bbls/d. We own a 60% interest in Edwards Lime and operate the assets. Contracts on the expansion are fee-based, which includes reservation fees. Capital expenditures related to the expansion are expected to total $150 million, of which we will contribute $90 million; this amount is included in our previously announced 2012 growth capital projections. The project is expected to be complete in the fourth quarter of 2012.

Ranch JV. In June 2012, Ranch JV's refrigeration processing plant became operational.

OUR OPERATIONS. We divide our operations into five business segments:

• Gathering and Processing. We provide “wellhead-to-market” services to producers of natural gas, which include transporting raw natural gas from the wellhead through gathering systems, processing raw natural gas to separate NGLs and selling or delivering the pipeline-quality natural gas and NGLs to various markets and pipeline systems. This segment also includes our investment in Ranch JV, which processes natural gas delivered from the NGLs-rich Bone Spring and Avalon shale formations in west Texas.

• Joint Ventures. Our Joint Ventures segment includes the following:

◦ a 49.99% general partner interest in HPC, which owns RIGS, a 450 mile intrastate pipeline that delivers natural gas from northwest Louisiana to downstream pipelines and markets;

◦ a 50% membership interest in MEP, which owns an interstate natural gas pipeline with approximately 500 miles stretching from southeast Oklahoma through northeast Texas, northern Louisiana and central Mississippi to an interconnect with the Transcontinental Gas Pipe Line system in Butler, Alabama; and

◦ a 30% membership interest in Lone Star, an entity owning a diverse set of midstream energy assets including NGL pipelines, storage, fractionation and processing facilities located in the states of Texas, Mississippi and Louisiana.

• Contract Compression. We own and operate a fleet of compressors used to provide turn-key natural gas compression services for customer specific systems.

• Contract Treating. We own and operate a fleet of equipment used to provide treating services, such as carbon dioxide and hydrogen sulfide removal, natural gas cooling, dehydration and BTU management, to natural gas producers and midstream pipeline companies.

• Corporate and Others. Our Corporate and Others segment comprises a small regulated pipeline and our corporate offices.

HOW WE EVALUATE OUR OPERATIONS. Management uses a variety of financial and operational measures to analyze our performance. We view these measures as important tools for evaluating the success of our operations and review these measurements on a monthly basis for consistency and trend analysis. These measures include volumes, segment margin, total segment margin, adjusted segment margin, adjusted total segment margin and operation and maintenance expense on a segment and company-wide basis and EBITDA and adjusted EBITDA on a company-wide basis.

Volumes. We must continually obtain new supplies of natural gas to maintain or increase throughput volumes on our gathering and processing systems. Our ability to maintain existing supplies of natural gas and obtain new supplies is affected by (i) the level of workovers or recompletions of existing connected wells and successful drilling activity in areas currently dedicated to our gathering and processing systems, (ii) our ability to compete for volumes from successful new wells in other areas and (iii) our

19

ability to obtain natural gas that has been released from other commitments. We routinely monitor producer activity in the areas served by our gathering and processing systems to pursue new supply opportunities.

Segment Margin and Total Segment Margin. We define segment margin, generally, as revenues minus cost of sales. We calculate our Gathering and Processing segment margin and Corporate and Others segment margin as our revenues generated from operations less the cost of natural gas and NGLs purchased and other cost of sales, including third-party transportation and processing fees.

We do not record segment margin for the Joint Ventures segment because we record our ownership percentages of the net income of our unconsolidated affiliates as income from unconsolidated affiliates in accordance with the equity method of accounting.

We calculate our Contract Compression segment margin as our revenues generated from our contract compression operations minus direct costs, primarily compressor unit repairs, associated with those revenues.

We calculate our Contract Treating segment margin as revenues generated from our contract treating operations minus direct costs associated with those revenues.

We calculate total segment margin as the total of segment margin of our segments, less intersegment eliminations.

Adjusted Segment Margin and Adjusted Total Segment Margin. We define adjusted segment margin as segment margin adjusted for non-cash (gains) losses from commodity derivatives. Our adjusted total segment margin equals the sum of our operating segments' adjusted segment margins or segment margins, including intersegment eliminations. Adjusted segment margin and adjusted total segment margin are included as supplemental disclosures because they are primary performance measures used by management because they represent the results of product purchases and sales, a key component of our operations.

Revenue Generating Horsepower. Revenue generating horsepower is the primary driver for revenue growth in our contract compression segment, and it is also the primary measure for evaluating our operational efficiency. Revenue generating horsepower is the total horsepower that our Contract Compression segment owns and operates for external customers. It does not include horsepower under contract that is not generating revenue or idle horsepower.

Revenue Generating Gallons per Minute (GPM). Revenue generating GPM is the primary driver for revenue growth of the treating business in our contract treating segment. GPM is used as a measure of the treating capacity of an amine plant. Revenue generating GPM is our total GPM under contract less GPM that is not generating revenues.

Operation and Maintenance Expense. Operation and maintenance expense is a separate measure that we use to evaluate operating performance of field operations. Direct labor, insurance, property taxes, repair and maintenance, utilities and contract services comprise the most significant portion of our operating and maintenance expense. These expenses are largely independent of the volumes through our systems but fluctuate depending on the activities performed during a specific period. We do not deduct operation and maintenance expenses from total revenues in calculating segment margin because we use segment margin to separately evaluate commodity volume and price changes.

EBITDA and Adjusted EBITDA. We define EBITDA as net income (loss) plus interest expense, net, income tax expense and depreciation and amortization expense. We define adjusted EBITDA as EBITDA plus or minus the following:

• non-cash loss (gain) from commodity and embedded derivatives;

• non-cash unit-based compensation expenses;

• loss (gain) on asset sales, net;

• loss on debt refinancing, net;

• other non-cash (income) expense, net;

• net income attributable to noncontrolling interest; and

• our interest in adjusted EBITDA from unconsolidated affiliates less income from unconsolidated affiliates.

These measures are used as supplemental measures by our management and by external users of our financial statements such as investors, banks, research analysts and others, to assess:

• financial performance of our assets without regard to financing methods, capital structure or historical cost basis;

• the ability of our assets to generate cash sufficient to pay interest costs, support our indebtedness and make cash distributions to our unitholders and General Partner;

20

• our operating performance and return on capital as compared to those of other companies in the midstream energy sector, without regard to financing or capital structure; and

• the viability of acquisitions and capital expenditure projects.

Neither EBITDA nor adjusted EBITDA should be considered as an alternative to, or more meaningful than, net income, operating income, cash flows from operating activities or any other measure of financial performance presented in accordance with GAAP. EBITDA is the starting point in determining cash available for distribution, which is an important non-GAAP financial measure for a publicly traded partnership.

The following table presents a reconciliation of EBITDA and adjusted EBITDA to net cash flows provided by operating activities and to net income for the Partnership:

	Six Months Ended June 30,
Reconciliation of “Adjusted EBITDA” to net cash flows provided by operating activities and net income	2012			2011
Net cash flows provided by operating activities	$	102,196		$	121,114
Add (deduct):
Depreciation and amortization, including debt issuance cost and bond premium amortization	(99,359		)	(83,587		)
Income from unconsolidated affiliates	66,143			55,975
Derivative valuation changes	24,450			5,826
Loss on asset sales, net	(1,584		)	(181		)
Unit-based compensation expenses	(2,294		)	(1,747		)
Trade accounts receivable, accrued revenues and related party receivables	(21,052		)	8,847
Other current assets	(179		)	(964		)
Trade accounts payable, accrued cost of gas and liquids, related party payables and deferred revenues	51,903			(28,577		)
Other current liabilities	976			2,764
Distributions received from unconsolidated affiliates	(63,096		)	(50,510		)
Other assets and liabilities	123			182
Net income	58,227			29,142
Add:
Interest expense, net	57,491			44,696
Depreciation and amortization expense	96,638			80,739
Income tax expense	89			70
EBITDA	212,445			154,647
Add (deduct):
Non-cash gain from commodity and embedded derivatives	(23,977		)	(5,093		)
Unit-based compensation expenses	2,294			1,796
Loss on asset sales, net	1,584			181
Loss on debt refinancing, net	7,820			—
Income from unconsolidated affiliates	(66,143		)	(55,975		)
Partnership’s interest in unconsolidated affiliates' adjusted EBITDA	116,381			99,872
Other expense (income), net	(1,083		)	(235		)
Adjusted EBITDA	$	249,321		$	195,193

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The following tables present reconciliations of net income to adjusted EBITDA for our unconsolidated affiliates, on a 100% basis, and the Partnership's interest in adjusted EBITDA for the six months ended June 30, 2012 and 2011:

	Six Months Ended June 30, 2012
	HPC			MEP			Lone Star			Ranch JV			Total
Net income (loss)	$	48,844		$	41,871		$	79,101		$	(51	)
Add:
Depreciation and amortization	18,202			34,721			24,905			55
Interest expense, net	940			25,793			—			—
Adjusted EBITDA	67,986			102,385			104,006			4
Ownership interest	49.99		%	50		%	30		%	33.33		%
Partnership's interest in adjusted EBITDA	$	33,986		$	51,193		$	31,201		$	1		$	116,381

	Six Months Ended June 30, 2011
	HPC			MEP			Lone Star(1)			Ranch JV	Total
Net income	$	60,421		$	40,686		27,958			N/A
Add:
Depreciation and amortization	16,746			34,775			7,139			N/A
Interest expense, net	387			25,768			—			N/A
Other expense, net	11			—			185			N/A
Adjusted EBITDA	77,565			101,229			35,282			N/A
Ownership interest	49.99		%	49.9		%	30		%	N/A
Partnership's interest in adjusted EBITDA	$	38,775		$	50,513		$	10,584		N/A	$	99,872

__________________

(1) For the period from initial contribution, May 2, 2011, to June 30, 2011.

N/A We acquired a 33.33% membership interest in Ranch JV in December 2011.

The following table presents a reconciliation of total segment margin and adjusted total segment margin to net income for the three and six month periods ended June 30, 2012 and 2011 for the Partnership:

	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
Net income	$	29,327		$	14,837		$	58,227		$	29,142
Add (deduct):
Operation and maintenance	38,992			33,996			79,973			67,556
General and administrative	16,476			17,551			32,171			36,660
Loss on asset sales, net	1,548			153			1,584			181
Depreciation and amortization	45,132			40,503			96,638			80,739
Income from unconsolidated affiliates	(34,185		)	(32,167		)	(66,143		)	(55,975		)
Interest expense, net	27,934			24,689			57,491			44,696
Loss on debt refinancing, net	7,820			—			7,820			—
Other income and deductions, net	(7,921		)	(2,641		)	(24,443		)	(5,055		)
Income tax expense	38			102			89			70
Total segment margin	125,161			97,023			243,407			198,014
Add (deduct):
Non-cash (gain) loss from commodity derivatives	(13,953		)	2,147			(15,572		)	432
Adjusted total segment margin	$	111,208		$	99,170		$	227,835		$	198,446

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RESULTS OF OPERATIONS

Three Months EndedJune 30, 2012 vs. Three Months EndedJune 30, 2011

	Three Months Ended June 30,
	2012			2011			Change			Percent
Total revenues	$	311,976		$	356,498		$	(44,522	)	12	%
Cost of sales	186,815			259,475			72,660			28
Total segment margin (1)	125,161			97,023			28,138			29
Operation and maintenance	38,992			33,996			(4,996		)	15
General and administrative	16,476			17,551			1,075			6
Loss on asset sales, net	1,548			153			(1,395		)	912
Depreciation and amortization	45,132			40,503			(4,629		)	11
Operating income	23,013			4,820			18,193			377
Income from unconsolidated affiliates	34,185			32,167			2,018			6
Interest expense, net	(27,934		)	(24,689		)	(3,245		)	13
Loss on debt refinancing, net	(7,820		)	—			(7,820		)	100
Other income and deductions, net	7,921			2,641			5,280			200
Income before income taxes	29,365			14,939			14,426			97
Income tax expense	38			102			64			63
Net income	29,327			14,837			14,490			98
Net income attributable to noncontrolling interest	(649		)	(293		)	(356		)	122
Net income attributable to Regency Energy Partners LP	$	28,678		$	14,544		$	14,134		97
Gathering and processing segment margin	$	79,416		$	50,495		$	28,921		57
Non-cash (gain) loss from commodity derivatives	(13,953		)	2,147			(16,100		)	750
Adjusted gathering and processing segment margin	65,463			52,642			12,821			24
Contract compression segment margin (2)	38,015			36,973			1,042			3
Contract treating segment margin (2)	7,241			7,701			(460		)	6
Corporate and others segment margin	5,497			4,762			735			15
Intersegment eliminations (2)	(5,008		)	(2,908		)	(2,100		)	72
Adjusted total segment margin	$	111,208		$	99,170		$	12,038		12	%

__________________

(1) For a reconciliation of segment margin to the most directly comparable financial measure calculated and presented in accordance with GAAP, see the reconciliation provided above.

(2) Contract Compression and Contract Treating segment margin includes intersegment revenues of $4.4 million and $0.6 million, respectively, for the three months endedJune 30, 2012 and $2.9 million and $0 million, respectively, for the three months ended June 30, 2011. These intersegment revenues were eliminated upon consolidation.

Net Income Attributable to Regency Energy Partners LP. Our income increased to $28.7 million for the three months endedJune 30, 2012 from $14.5 million for the three months endedJune 30, 2011. The major components of this change were as follows:

• $28.1 million increase in total segment margin primarily due to increased volumes in south and west Texas and north Louisiana in our Gathering and Processing segment;

• $5.3 million increase in other income and deductions, net primarily due to the non-cash mark-to-market gain in the embedded derivative related to the Series A Units;

• $2 million increase in income from unconsolidated affiliates primarily due to our acquisition of a 30% interest in Lone Star in May 2011; offset by

• $7.8 million net loss on debt refinancing related to the redemption of 35% of our outstanding senior notes due 2016 at a price of 109.375% of the principal amount plus accrued interest in May 2012;

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• $5 million increase in operation and maintenance expenses primarily related to an increase in pipeline and plant operating expenses associated with increased activity in south and west Texas;

• $4.6 million increase in depreciation and amortization expense primarily related to the completion of various organic growth projects since June 2011; and

• $3.2 million increase in interest expense primarily related to the interest associated with the $500 million senior notes we issued in May 2011.

Adjusted Total Segment Margin. Adjusted total segment margin increased to $111.2 million in the three months endedJune 30, 2012 from $99.2 million in the three months endedJune 30, 2011. The major components of this change were as follows:

• Adjusted Gathering and Processing segment margin increased to $65.5 million during the three months endedJune 30, 2012 from $52.6 million for the three months endedJune 30, 2011 primarily due to volume growth in south and west Texas and north Louisiana. Total Gathering and Processing throughput increased to 1,380,000 MMBtu/d during the three months ended June 30, 2012 from 1,063,000 MMBtu/d during the three months ended June 30, 2011. Total NGL gross production increased to 37,200 Bbls/d during the three months ended June 30, 2012 from 28,000 Bbls/d during the three months ended June 30, 2011;

• Contract Compression segment margin increased to $38 million in the three months endedJune 30, 2012 from $37 million in the three months endedJune 30, 2011. Contract Compression segment margin includes both revenues from external customers as well as intersegment revenues. The increase in segment margin is primarily due to the increase in revenue generating horsepower, inclusive of intersegment revenue generating horsepower. Revenue generating horsepower, inclusive of intersegment revenue generating horsepower, increased to 825,000 as of June 30, 2012 from 811,000 as of June 30, 2011. The increase in revenue generating horsepower is primarily attributable to additional horsepower placed into service in south Texas for the Gathering and Processing segment to provide compression services to external customers;

• Contract Treating segment margin decreased to $7.2 million for the three months endedJune 30, 2012 from $7.7 million for the three months ended June 30, 2011. Revenue generating GPM as of June 30, 2012 and June 30, 2011 was 3,773 and 3,368, respectively. The increase in revenue generating GPM was primarily due to a 400 GPM amine plant went on line in June 2012; and

• Intersegment eliminations increased to $5 million in the three months endedJune 30, 2012 from $2.9 million in the three months endedJune 30, 2011. The increase was primarily due to an increase in transactions between the Gathering and Processing and the Contract Compression segments as a result of additional horsepower placed into service in south Texas for the Gathering and Processing segment to provide compression services to external customers.

Operation and Maintenance. Operation and maintenance expense increased to $39 million in the three months endedJune 30, 2012 from $34 million during the three months endedJune 30, 2011. The change was primarily due to the following:

• $4.1 million increase in pipeline and plant operating expenses primarily related to increased activity in south and west Texas; and

• $1.3 million increase in compressor maintenance expense primarily due to increases in lubricants, maintenance, rental, and materials costs.

General and Administrative. General and administrative expense decreased to $16.5 million in the three months endedJune 30, 2012 from $17.6 million during the three months endedJune 30, 2011. The change was primarily due to the following:

• $0.8 million decrease in employee related costs due to the shared services integration and reduction in employee headcount; and

• $0.4 million decrease in office expenses and legal fees.

Depreciation and Amortization. Depreciation and amortization expense increased to $45.1 million in the three months endedJune 30, 2012 from $40.5 million in the three months endedJune 30, 2011. This increase was the result of additional depreciation and amortization expense due to the completion of various organic growth projects since July 2011.

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Income from Unconsolidated Affiliates. Income from unconsolidated affiliates increased to $34.2 million for the three months endedJune 30, 2012 from $32.2 million for the three months endedJune 30, 2011. The schedule below summarizes the components of income from unconsolidated affiliates and our ownership interest for the three months endedJune 30, 2012 and 2011, respectively:

	Three Months Ended June 30, 2012
	HPC			MEP			Lone Star			Ranch JV			Total
Net income (loss)	$	26,222		$	20,377		$	41,220		$	(27	)
Ownership interest	49.99		%	50		%	30		%	33.33		%
Share of unconsolidated affiliates’ net income (loss)	13,108			10,189			12,366			(17		)
Less: Amortization of excess fair value of unconsolidated affiliates	(1,461		)	—			—			—
Income (loss) from unconsolidated affiliates	$	11,647		$	10,189		$	12,366		$	(17	)	$	34,185
	Three Months Ended June 30, 2011
	HPC			MEP			Lone Star(1)			Ranch JV			Total
Net income	$	30,265		$	20,276		$	27,958		N/A
Ownership interest	49.99		%	49.9		%	30		%	N/A
Share of unconsolidated affiliates’ net income	15,130			10,110			8,388			N/A
Less: Amortization of excess fair value of unconsolidated affiliates	(1,461		)	—			—			N/A
Income from unconsolidated affiliates	$	13,669		$	10,110		$	8,388		N/A			$	32,167

__________________ 

(1) For the period from initial contribution, May 2, 2011, to June 30, 2011.

N/A We acquired a 33.33% membership interest in Ranch JV in December 2011.

HPC’s net income decreased to $26.2 million for the three months endedJune 30, 2012 from $30.3 million for the three months endedJune 30, 2011, primarily due to expiration of certain contracts not renewed as well as lower throughput. Shippers who are choosing not to renew their contracts are primarily doing so because they hold excess firm transportation capacity out of the Haynesville shale.  This excess capacity is a result of moving drilling rigs out of the Haynesville area to richer gas plays which has slowed supply growth and contributed to the decrease in throughput. MEP's net income increased to $20.4 million for the three months endedJune 30, 2012 from $20.3 million for the three months endedJune 30, 2011, primarily due to an increase in throughput. Lone Star's net income in increased to $41.2 million for the three months endedJune 30, 2012 from$28 millionfor the three months endedJune 30, 2011, due to the net income in the prior period only reflecting the activity from initial contribution, May 2, 2011, to June 30, 2011.

The following table presents operational data for each of our unconsolidated affiliates for the three months endedJune 30, 2012 and 2011:

		Three Months Ended June 30,
	Operational data	2012	2011
HPC	Throughput (MMBtu/d)	903,344	1,528,333
MEP	Throughput (MMBtu/d)	1,418,206	1,197,520
Lone Star	West Texas Pipeline – Throughput (Bbls/d) (1)	133,429	128,127
	NGL Fractionation Throughput (Bbls/d) (1)	20,575	14,806
Ranch JV	Throughput (MMBtu/d) (2)	4,744	N/A

__________________

(1) Lone Star's operational volumes represent the period from initial contribution, May 2, 2011, to June 30, 2011.

(2) Ranch JV began operations in June 2012.

N/A We acquired a 33.33% membership interest in Ranch JV in December 2011.

Interest Expense, Net. Interest expense, net increased to $27.9 million for the three months endedJune 30, 2012 from $24.7 million for the three months endedJune 30, 2011 primarily due to the interest related to our $500 million senior notes issued in May 2011 with an interest rate of 6.5%.

25

Other Income and Deductions, Net. Other income and deductions, net increased to $7.9 million in the three months endedJune 30, 2012 from $2.6 million in the three months endedJune 30, 2011, primarily due the non-cash mark-to-market gain in the embedded derivative related to the Series A Units.

RESULTS OF OPERATIONS

Six Months EndedJune 30, 2012 vs. Six Months EndedJune 30, 2011

	Six Months Ended June 30,
	2012			2011			Change			Percent
Total revenues	$	669,875		$	673,750		$	(3,875	)	1	%
Cost of sales	426,468			475,736			49,268			10
Total segment margin (1)	243,407			198,014			45,393			23
Operation and maintenance	79,973			67,556			(12,417		)	18
General and administrative	32,171			36,660			4,489			12
Loss on asset sales, net	1,584			181			(1,403		)	775
Depreciation and amortization	96,638			80,739			(15,899		)	20
Operating income	33,041			12,878			20,163			157
Income from unconsolidated affiliates	66,143			55,975			10,168			18
Interest expense, net	(57,491		)	(44,696		)	(12,795		)	29
Loss on debt refinancing, net	(7,820		)	—			(7,820		)	100
Other income and deductions, net	24,443			5,055			19,388			384
Income before income taxes	58,316			29,212			29,104			100
Income tax expense	89			70			(19		)	27
Net income	58,227			29,142			29,085			100
Net income attributable to noncontrolling interest	(1,048		)	(524		)	(524		)	100
Net income attributable to Regency Energy Partners LP	$	57,179		$	28,618		$	28,561		100
Gathering and processing segment margin	$	150,751		$	104,295		$	46,456		45
Non-cash (gain) loss from commodity derivatives	(15,572		)	432			(16,004		)	3,705
Adjusted gathering and processing segment margin	135,179			104,727			30,452			29
Contract compression segment margin (2)	77,001			78,413			(1,412		)	2
Contract treating segment margin (2)	15,124			14,952			172			1
Corporate and others segment margin	10,145			9,815			330			3
Intersegment eliminations (2)	(9,614		)	(9,461		)	(153		)	2
Adjusted total segment margin	$	227,835		$	198,446		$	29,389		15	%

__________________

(1) For a reconciliation of segment margin to the most directly comparable financial measure calculated and presented in accordance with GAAP, see the reconciliation provided above.

(2) Contract Compression and Contract Treating segment margin includes intersegment revenues of $8.5 million and $1.1 million, respectively, for the six months endedJune 30, 2012 and $9.5 million and $0 million, respectively, for the six months ended June 30, 2011. These intersegment revenues were eliminated upon consolidation.

Net Income Attributable to Regency Energy Partners LP. Our income increased to $57.2 million for the six months endedJune 30, 2012 from $28.6 million for the six months endedJune 30, 2011. The major components of this change were as follows:

• $45.4 million increase in total segment margin primarily due to increased volumes in south and west Texas and north Louisiana in our Gathering and Processing segment;

• $19.4 million increase in other income and deductions, net primarily due to a $15.6 million one-time producer payment received in March 2012 related to an assignment of certain contracts as well as an increase in the non-cash mark-to-market gain in the embedded derivative related to the Series A Units;

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• $10.2 million increase in income from unconsolidated affiliates primarily due to our acquisition of a 30% interest in Lone Star in May 2011;

• $4.5 million decrease in general and administrative expenses primarily due to decreases in employee related costs, professional fees and office expenses; offset by

• $15.9 million increase in depreciation and amortization expense primarily related to the completion of various organic growth projects since July 2011, as well as an out of period adjustment of $6.9 million recorded in March 2012 (further discussed below);

• $12.8 million increase in interest expense primarily related to the interest associated with the $500 million senior notes we issued in May 2011;

• $12.4 million increase in operation and maintenance expense primarily related to increased pipeline and plant operating expenses associated with increased activity in south and west Texas; and

• $7.8 million net loss on debt refinancing related to the redemption of 35% of our outstanding senior notes due 2016 at a price of 109.375% of the principal amount plus accrued interest in May 2012.

Adjusted Total Segment Margin. Adjusted total segment margin increased to $227.8 million in the six months endedJune 30, 2012 from $198.4 million in the six months endedJune 30, 2011. The major components of this change were as follows:

• Adjusted Gathering and Processing segment margin increased to $135.2 million during the six months endedJune 30, 2012 from $104.7 million for the six months endedJune 30, 2011 primarily due to volume growth in south and west Texas and north Louisiana. Total Gathering and Processing throughput increased to 1,384,000 MMBtu/d during the six months ended June 30, 2012 from 1,034,000 MMBtu/d during the six months ended June 30, 2011. Total NGL gross production increased to 37,400 Bbls/d during the six months ended June 30, 2012 from 28,000 Bbls/d during the six months ended June 30, 2011;

• Contract Compression segment margin decreased to $77 million in the six months endedJune 30, 2012 from $78.4 million in the six months endedJune 30, 2011. Contract Compression segment margin includes both revenues from external customers as well as intersegment revenues. The decrease in segment margin is primarily due to the transfer of certain compression units from the Contract Compression segment to the Gathering and Processing segment in the three months ended June 30, 2011, offset by the increase in revenue generating horsepower, inclusive of intersegment revenue generating horsepower. Revenue generating horsepower, inclusive of intersegment revenue generating horsepower, increased to 825,000 as of June 30, 2012 from 811,000 as of June 30, 2011. The increase in revenue generating horsepower is primarily attributable to additional horsepower placed into service in south Texas for the Gathering and Processing segment to provide compression services to external customers;

• Contract Treating segment margin increased to $15.1 million for the six months endedJune 30, 2012 from $15 million for the six months endedJune 30, 2011. Revenue generating GPM as of June 30, 2012 and June 30, 2011 was 3,773 and 3,368, respectively. The increase in revenue generating GPM was primarily due to a 400 GPM amine plant went on line in June 2012; and

• Intersegment eliminations increased to $9.6 million in the six months endedJune 30, 2012 from $9.5 million in the six months endedJune 30, 2011. The increase was primarily due to a increase in transactions between the Gathering and Processing and the Contract Treating segments as a result of additional services provided in south Texas for the Gathering and Processing segment to provide treating services to external customers.

Operation and Maintenance. Operation and maintenance expense increased to $80 million in the six months endedJune 30, 2012 from $67.6 million during the six months endedJune 30, 2011. The change was primarily due to the following:

• $6.8 million increase in pipeline and plant operating expenses primarily related to increased activity in south and west Texas;

• $3.2 million increase in compressor maintenance expense primarily due to an increase in lubricants, maintenance, rental, and materials costs; and

• $2.3 million increase in employee related costs primarily due to organic growth projects in south and west Texas.

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General and Administrative. General and administrative expense decreased to $32.2 million in the six months endedJune 30, 2012 from $36.7 million during the six months endedJune 30, 2011. The change was primarily due to the following:

• $2.1 million decrease in employee related costs due to the shared services integration and subsequent reduction in employee headcount;

• $1.3 million decrease in professional fees related to lower legal and investor fees; and

• $1 million decrease in office expenses primarily due to lower rent and utilities expenses.

Depreciation and Amortization. Depreciation and amortization expense increased to $96.6 million in the six months endedJune 30, 2012 from $80.7 million in the six months endedJune 30, 2011. This increase was the result of $9 million of additional depreciation and amortization expense due to the completion of various organic growth projects since July 2011 and $6.9 million related to an “out-of-period” adjustment for all periods subsequent to May 26, 2010 (the “Successor” period as described in our Form 10-K for the year ended December 31, 2011) related to our Contract Compression segment to adjust the estimated useful lives of certain assets to comply with our policy. The amounts related to the year ended December 31, 2011 and to the period from May 26, 2010 to December 31, 2010 were $4.4 million and $2.5 million, respectively. Had these amounts been recorded to their respective period, the depreciation and amortization expense for the six months ended June 30, 2012 and 2011 would have been $89.7 million and $82.9 million, respectively.

Income from Unconsolidated Affiliates. Income from unconsolidated affiliates increased to $66.1 million for the six months endedJune 30, 2012 from $56 million for the six months endedJune 30, 2011. The schedule below summarizes the components of income from unconsolidated affiliates and our ownership interest for the six months endedJune 30, 2012 and 2011, respectively:

	Six Months Ended June 30, 2012
	HPC			MEP			Lone Star			Ranch JV			Total
Net income (loss)	$	48,844		$	41,871		$	79,101		$	(51	)
Ownership interest	49.99		%	50		%	30		%	33.33		%
Share of unconsolidated affiliates’ net income (loss)	24,417			20,936			23,730			(17		)
Less: Amortization of excess fair value of unconsolidated affiliates	(2,923		)	—			—			—
Income (loss) from unconsolidated affiliates	$	21,494		$	20,936		$	23,730		$	(17	)	$	66,143
	Six Months Ended June 30, 2011
	HPC			MEP			Lone Star(1)			Ranch JV			Total
Net income	$	60,421		$	40,686		$	27,958		N/A
Ownership interest	49.99		%	49.9		%	30		%	N/A
Share of unconsolidated affiliates’ net income	30,205			20,305			8,388			N/A
Less: Amortization of excess fair value of unconsolidated affiliates	(2,923		)	—			—			N/A
Income from unconsolidated affiliates	$	27,282		$	20,305		$	8,388		N/A			$	55,975

__________________ 

(1) For the period from initial contribution, May 2, 2011, to June 30, 2011.

N/A We acquired a 33.33% membership interest in Ranch JV in December 2011.

HPC’s net income decreased to $48.8 million for the six months endedJune 30, 2012 from $60.4 million for the six months endedJune 30, 2011, primarily due to expiration of certain contracts not renewed as well as lower throughput. Shippers who are choosing not to renew their contracts are primarily doing so because they hold excess firm transportation capacity out of the Haynesville shale.  This excess capacity is a result of moving drilling rigs out of the Haynesville area to richer gas plays which has slowed supply growth and contributed to the decrease in throughput. MEP's net income increased to $41.9 million for the six months endedJune 30, 2012 from $40.7 million for the six months endedJune 30, 2011, primarily due to an increase in throughput. Lone Star's net income increased to $79.1 million for the six months endedJune 30, 2012 from$28 millionfor the six months endedJune 30, 2011, due to the net income in the prior period only reflecting the activity from initial contribution, May 2, 2011, to June 30, 2011.

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The following table presents operational data for each of our unconsolidated affiliates for the six months endedJune 30, 2012 and 2011:

		Six Months Ended June 30,
	Operational data	2012	2011
HPC	Throughput (MMBtu/d)	922,241	1,522,515
MEP	Throughput (MMBtu/d)	1,423,764	1,208,614
Lone Star	West Texas Pipeline – Throughput (Bbls/d) (1)	134,022	128,127
	NGL Fractionation Throughput (Bbls/d) (1)	19,910	14,806
Ranch JV	Throughput (MMBtu/d) (2)	4,744	N/A

__________________

(1) Lone Star's operational volumes represent the period from initial contribution, May 2, 2011, to June 30, 2011.

(2) Ranch JV began operations in June 2012.

N/A We acquired a 33.33% membership interest in Ranch JV in December 2011.

Interest Expense, Net. Interest expense, net increased to $57.5 million for the six months endedJune 30, 2012 from $44.7 million for the six months endedJune 30, 2011 primarily due to the interest related to our $500 million senior notes issued in May 2011 with an interest rate of 6.5%.

Other Income and Deductions, Net. Other income and deductions, net increased to $24.4 million in the six months endedJune 30, 2012 from $5.1 million in the six months endedJune 30, 2011, primarily due to a $15.6 million one-time producer payment received in March 2012 related to an assignment of certain contracts, as well as an increase in the non-cash mark-to-market gain in the embedded derivative related to the Series A Units.

CRITICAL ACCOUNTING POLICIES AND ESTIMATES

In addition to the information set forth in this report, further information regarding our critical accounting policies and estimates is included in Item 7 of our Annual Report on Form 10-K for the year ended December 31, 2011.

OTHER MATTERS

Information regarding our commitments and contingencies is included in Note 7 – Commitments and Contingencies to the condensed consolidated financial statements included in Item 1 of this report.

LIQUIDITY AND CAPITAL RESOURCES

Liquidity

We expect our sources of liquidity to include:

• cash generated from operations and occasional asset sales;

• borrowings under our revolving credit facility;

• distributions received from unconsolidated affiliates;

• debt offerings; and

• issuance of additional partnership units.

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We expect our 2012 capital expenditures, including capital contributions to our unconsolidated affiliates, to be as follows (in millions):

	2012
Growth Capital Expenditures
Gathering and Processing segment (1)(2)	$	310
Contract Compression segment	70
Contract Treating segment	40
Joint Ventures segment:
Lone Star (2)	350 - 400
Corporate and Others segment	5
Total	$ 775 - 825
Maintenance Capital Expenditures; including our proportionate share related to our joint ventures	$	28

_______________________

(1) Included in the Gathering and Processing segment is $35 million of growth capital expenditures related to the Ranch JV, which represents our portion of the capital contributions to Ranch JV to fund its growth projects.

(2) In addition to the 2012 capital expenditures disclosed above, we expect to spend $150 million in our Gathering and Processing segment beyond 2012, which represents the continuing capital expenditures on our approved growth projects; and $100 million in our Joint Ventures segment beyond 2012, which represents our portion of the capital contributions to Lone Star to fund its approved growth projects.

We may revise the timing of these expenditures as necessary to adapt to economic conditions. We expect to fund our growth capital expenditures with borrowings under our revolving credit facility and a combination of debt and equity issuances.

Working Capital. Working capital is the amount by which current assets exceed current liabilities and is a measure of our ability to pay our obligations as they become due. When we incur growth capital expenditures, we may experience working capital deficits as we fund construction expenditures out of working capital until we permanently finance them. Our working capital is also influenced by current derivative assets and liabilities due to fair value changes in our derivative positions being reflected on our balance sheet. These derivative assets and liabilities represent our expectations for the settlement of derivative rights and obligations over the next 12 months, and should be viewed differently from trade accounts receivable and accounts payable, which settle over a shorter span of time. When our derivative positions are settled, we expect an offsetting physical transaction, and, as a result, we do not expect derivative assets and liabilities to affect our ability to pay expenditures and obligations as they come due. Our Contract Compression and Contract Treating segments record deferred revenues as a current liability. The deferred revenue represents billings in advance of services performed. As the revenues associated with the deferred revenues are earned, the liability is reduced.

We had a working capital deficit of $17.7 million at June 30, 2012 compared to a working capital deficit of $46.2 million at December 31, 2011. The decrease in working capital deficit was primarily due to a $20.4 million increase in net derivative assets and liabilities driven by the declines in commodity prices, and a $14.9 million increase in cash and cash equivalents as a result of the cash contribution into Edwards Lime from its joint venture partners to fund its expansion projects.

Cash Flows from Operating Activities. Net cash flows provided by operating activities decreased to $102.2 million in the six months endedJune 30, 2012 from $121.1 million in the six months endedJune 30, 2011. The decrease was primarily due to a $8.2 million redemption premium to redeem 35%, or $87.5 million of our $250 million senior notes due 2016, as well as the timing of cash receipts and disbursements.

Cash Flows used in Investing Activities. Net cash flows used in investing activities decreased to $324.4 million in the six months endedJune 30, 2012 from $731.9 million in the six months endedJune 30, 2011, primarily as a result of decreased capital contributions we made to unconsolidated affiliates.

Growth Capital Expenditures. Growth capital expenditures are capital expenditures made to acquire additional assets to increase our business, to expand and upgrade existing systems and facilities or to construct or acquire systems or facilities. In the six months endedJune 30, 2012, we incurred $372.7 million of growth capital expenditures. Growth capital expenditures for the six months endedJune 30, 2012 included $136.2 million for organic growth projects for our Gathering and Processing segment, $54.7 million for the fabrication of new compressor packages for our Contract Compression segment, $162.7 million for growth projects for our Joint Ventures segment, and $19 million for the fabrication of new treating plants for our Contract Treating segment.

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Maintenance Capital Expenditures. Maintenance capital expenditures are capital expenditures made to replace partially or fully depreciated assets or to maintain the existing operating capacity of our assets and extend their useful lives. In the six months ended months ended June 30, 2012, we incurred $14.5 million of maintenance capital expenditures.

Cash Flows from Financing Activities. Net cash flows provided by financing activities decreased to $237.1 million in the six months endedJune 30, 2012 from $604.5 million during the same period in 2011. The decrease is primarily due to the absence in 2012 of a $500 million senior note offering that that was completed in 2011 and an increase in partner distributions of $27.1 million in 2012.

Capital Resources

Equity Distribution Agreement. On June 19, 2012, we entered into an Equity Distribution Agreement with Citi under which we may offer and sell common units, representing limited partner interests, having an aggregate offering price of up to $200 million from time to time through Citi, as our sales agent. Sales of these units, if any, made from time to time under the Equity Distribution Agreement will be made by means of ordinary brokers’ transactions on the New York Stock Exchange at market prices, in block transactions, or as otherwise agreed upon by us and Citi. Under the terms of this agreement, we may also sell common units to Citi as principal for its own account at a price agreed upon at the time of sale. Any sale of common units to Citi as principal would be pursuant to the terms of a separate agreement between the Partnership and Citi. We intend to use the net proceeds from the sale of these units for general partnership purposes. As of June 30, 2012, we had not issued any common units pursuant to this agreement.

Common Unit Offering. In March 2012, we issued 12,650,000 common units representing limited partner interests in a public offering at a price of $24.47 per common unit, resulting in net proceeds of $296.8 million. In May 2012, we used the net proceeds from this offering to redeem 35%, or $87.5 million, in aggregate principal amounts of our outstanding senior notes due 2016; pay related premium, expenses and accrued interest; and repay outstanding borrowings under our revolving credit facility.

Senior Notes Redemption. As described above, in May 2012, we exercised our option to redeem 35% or $87.5 million of our outstanding senior notes due 2016 at a price of 109.375% of the principal amount plus accrued interest.

Cash Distributions from Unconsolidated Affiliates. The following table summarizes the cash distributions from unconsolidated affiliates for the six months endedJune 30, 2012 and 2011:

	Six Months Ended June 30,
	2012		2011
HPC	$	30,030	$	34,841
MEP (1)	38,182		43,659
Lone Star	17,743		—		(2)
	$	85,955	$	78,500

__________________

(1) The decrease in MEP distributions is primarily due to an additional payment in 2011 as a result of change in its monthly distribution practice made in January 2011 whereby distributions are now paid concurrently as opposed to a month lag.

(2)     For the period from initial contribution, May 2, 2011, to June 30, 2011.

Item 3. Quantitative and Qualitative Disclosure about Market Risk

Risk and Accounting Policies. We are exposed to market risks associated with commodity prices, counterparty credit and interest rates. Management and the board of directors of our General Partner have established comprehensive risk management policies and procedures to monitor and manage these market risks. Our General Partner is responsible for delegation of transaction authority levels, and the Audit and Risk Committee of our General Partner is responsible for the oversight of credit risk and commodity price risk, including monitoring exposure limits. The Audit and Risk Committee receives regular briefings on positions and exposures, credit exposures and overall risk management in the context of market activities.

Commodity Price Risk. We are a net seller of NGLs, condensate and natural gas as a result of our gathering and processing operations. The prices of these commodities are impacted by changes in supply and demand as well as market forces. Our profitability and cash flow are affected by the inherent volatility of these commodities, which could adversely affect our cash available for distribution and our ability to make distributions to our unitholders. We manage this commodity price exposure through an integrated strategy that includes management of our contract portfolio, matching sales prices of commodities with purchases, optimization of our portfolio by monitoring basis and other price differentials in operating areas, and the use of derivative contracts. In some cases, we may not be able to match pricing terms or to cover our risk to price exposure with financial hedges,

31

and we may be exposed to commodity price risk. Speculative positions with derivative contracts are prohibited under our risk management policy.

We execute natural gas, NGLs and WTI trades on a periodic basis to hedge our anticipated equity exposure. Our swap contracts settle against condensate, ethane, propane, butane, natural gas, and natural gasoline market prices. We continually monitor our hedging and contract portfolio and expect to continue to adjust our hedge positions as conditions warrant.

The following table sets forth certain information regarding our hedges for natural gas, NGLs and WTI outstanding at June 30, 2012. The relevant index price that we pay for NGLs is the monthly average of the daily closing price for deliveries of commodities into Mont Belvieu, Texas, as reported by the Oil Price Information Service (OPIS). The relevant index price for natural gas is NYMEX on the pricing dates as defined by the swap contracts. The relevant index for WTI is the monthly average of the daily price of WTI as reported by the NYMEX. The fair value of our outstanding trades is determined using a discounted cash flow model based on third-party prices and readily available market information.

Period	Underlying	Notional  Volume/ Amount		We Pay	We Receive Weighted Average Price		Fair Value Asset/ (Liability)		Effect of Hypothetical Change  in Index*
							(in thousands)
July 2012-September 2012	Ethane	47	(MBbls)	Index	0.47	($/gallon)	$	311	$	62
July 2012-December 2012	Ethane- Put Option	110	(MBbls)	Index	0.66	($/gallon)	1,523		153
July 2012- March 2013	Propane	185	(MBbls)	Index	1.26	($/gallon)	3,134		665
July 2012- September 2013	Normal Butane	179	(MBbls)	Index	1.75	($/gallon)	3,364		981
July 2012- March 2013	Natural Gasoline	51	(MBbls)	Index	2.19	($/gallon)	872		387
July 2012- December 2014	West Texas Intermediate Crude	344	(MBbls)	Index	99.11	($/Bbl)	3,974		2,998
July 2012- June 2014	Natural Gas	5,297,000	(MMBtu)	Index	4.05	($/MMBtu)	2,942		1,842
					Total Fair Value		$	16,120

__________________

* Price risk sensitivities were calculated by assuming a theoretical 10% change, increase or decrease, in prices regardless of the term or the historical relationships between the contractual price of the instrument and the underlying commodity price. These price sensitivity results are presented in absolute terms.

Item 4. Controls and Procedures

Disclosure controls. At the end of the period covered by this report, an evaluation was performed under the supervision and with the participation of our management, including the Chief Executive Officer and Chief Financial Officer of our General Partner, of the effectiveness of the design and operation of our disclosure controls and procedures (as such terms are defined in Rule 13a–15(e) and 15d–15(e) of the Exchange Act). Based on that evaluation, management, including the Chief Executive Officer and Chief Financial Officer of our General Partner, concluded that our disclosure controls and procedures were effective as of June 30, 2012 to provide reasonable assurance that information required to be disclosed by us in the reports that we file or submit under the Exchange Act is properly recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms.

Internal control over financial reporting. There have been no changes in our internal controls over financial reporting (as defined in Rule 13(a)–15(f) or Rule 15d–15(f) of the Exchange Act) during the three months ended June 30, 2012 that have materially affected, or are reasonably likely to materially affect, our internal controls over financial reporting.

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PART II – OTHER INFORMATION

Item 1. Legal Proceedings

The information required for this item is provided in Note 7, Commitments and Contingencies, included in the notes to the unaudited condensed consolidated financial statements included under Part I, Item 1, which information is incorporated by reference into this item.

Item 1A. Risk Factors

For information regarding risk, uncertainties and assumptions, see Part I, Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2011. There are no material changes from the risk factors previously disclosed in our Annual Report on Form 10-K for the year ended December 31, 2011 and our Quarterly Report on Form 10-Q for the quarter ended March 31, 2012.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

None.

Item 3. Defaults upon Senior Securities

None.

Item 4. Mine Safety Disclosures

Not applicable.

Item 5. Other Information

None.

Item 6. Exhibits

The exhibits below are filed as a part of this report:

Exhibit 31.1 –	Rule 13a-14(a)/15d-14(a) Certification of Chief Executive Officer
Exhibit 31.2 –	Rule 13a-14(a)/15d-14(a) Certification of Chief Financial Officer
Exhibit 32.1 –	Section 1350 Certifications of Chief Executive Officer
Exhibit 32.2 –	Section 1350 Certifications of Chief Financial Officer
Exhibit 101.INS –	XBRL Instance Document
Exhibit 101.SCH –	XBRL Taxonomy Extension Schema
Exhibit 101.CAL –	XBRL Taxonomy Extension Calculation Linkbase
Exhibit 101.DEF –	XBRL Taxonomy Extension Definition Linkbase
Exhibit 101.LAB –	XBRL Taxonomy Extension Label Linkbase
Exhibit 101.PRE –	XBRL Taxonomy Extension Presentation Linkbase

33

SIGNATURE

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

		REGENCY ENERGY PARTNERS LP By: Regency GP LP, its general partner By: Regency GP LLC, its general partner
Date:	August 8, 2012	/S/    A. TROY STURROCK
		A. Troy Sturrock Vice President, Controller and Principal Accounting Officer (Duly Authorized Officer)

34

EX-31.1

Exhibit 31.1

I, Michael J. Bradley, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Regency Energy Partners LP;

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 Securities and 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.

Date:	August 8, 2012	/s/ Michael J. Bradley
		Michael J. Bradley President and Chief Executive Officer of Regency GP LLC, general partner of Regency GP LP, general partner of Regency Energy Partners LP

EX-31.2

Exhibit 31.2

I, Thomas E. Long, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Regency Energy Partners LP;

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 Securities and 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.

Date:	August 8, 2012	/s/ Thomas E. Long
		Thomas E. Long Executive Vice President and Chief Financial Officer of Regency GP LLC, general partner of Regency GP LP, general partner of Regency Energy Partners LP

EX-32.1

Exhibit 32.1

CERTIFICATION OF CHIEF EXECUTIVE

OFFICER OF REGENCY ENERGY PARTNERS LP

PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED

PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the accompanying quarterly report on Form 10-Q for the quarter ended June 30, 2012 and filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Michael J. Bradley, President and Chief Executive Officer of Regency GP LLC, the general partner of Regency GP LP, the general partner of Regency Energy Partners LP (the “Partnership”), hereby certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Partnership.

Date:	August 8, 2012	/s/ Michael J. Bradley
		Michael J. Bradley President and Chief Executive Officer of Regency GP LLC, general partner of Regency GP LP, general partner of Regency Energy Partners LP

EX-32.2

Exhibit 32.2

CERTIFICATION OF CHIEF FINANCIAL

OFFICER OF REGENCY ENERGY PARTNERS LP

PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED

PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the accompanying quarterly report on Form 10-Q for the quarter ended June 30, 2012 and filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Thomas E. Long, Executive Vice President and Chief Financial Officer of Regency GP LLC, the general partner of Regency GP LP, general partner of Regency Energy Partners LP (the “Partnership”), hereby certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Partnership.

Date:	August 8, 2012	/s/ Thomas E. Long
		Thomas E. Long Executive Vice President and Chief Financial Officer of Regency GP LLC, general partner of Regency GP LP, general partner of Regency Energy Partners LP

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Derivative Instruments (Narrative) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012
Hedging gains or losses amortized in accumulated other comprehensive income loss	$ 1.1
Amortization period of deferred gain loss on discontinuation of cash flow hedge	1.75
Expired interest rate swaps	250
One year from balance sheet date [Member]
Hedging gains or losses amortized in accumulated other comprehensive income loss	0.8
Maximum [Member]
Credit risk of derivatives	$ 16.2

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Fair Value Measures (Narrative) (Details) (Details) (USD $) In Billions, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Fair Value Measures [Abstract]
Senior notes, fair value	$ 1.35	$ 1.44
Senior notes, carrying value	$ 1.26	$ 1.35

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Segment Information (Narrative) (Details)	6 Months Ended
	Jun. 30, 2012
HPC [Member]
Ownership interest in affiliate	49.99%
Natural gas pipeline length, miles	450
MEP [Member]
Ownership interest in affiliate	50.00%
Natural gas pipeline length, miles	500
Lone Star [Member]
Ownership interest in affiliate	30.00%

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Fair Value Measures (Partnership's Derivative Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Fair Value Measurement, Assets	$ 16,233	$ 4,848
Fair Value, Measurements, Recurring [Member]
Fair Value Measurement, Assets	16,233	4,848
Interest Rate Derivatives	0	470
Fair Value Measurement, Liabilities	30,757	49,647
Fair Value, Measurements, Recurring [Member] | Significant Observable Inputs (Level 2) [Member]
Fair Value Measurement, Assets	16,233	4,848
Interest Rate Derivatives	0	470
Fair Value Measurement, Liabilities	113	10,598
Fair Value, Measurements, Recurring [Member] | Unobservable Inputs (Level 3) [Member]
Fair Value Measurement, Assets	0	0
Interest Rate Derivatives	0	0
Fair Value Measurement, Liabilities	30,644	39,049
Fair Value, Measurements, Recurring [Member] | Natural Gas [Member]
Fair Value Measurement, Assets	3,055	3,907
Fair Value Measurement, Liabilities	113	0
Fair Value, Measurements, Recurring [Member] | Natural Gas [Member] | Significant Observable Inputs (Level 2) [Member]
Fair Value Measurement, Assets	3,055	3,907
Fair Value Measurement, Liabilities	113	0
Fair Value, Measurements, Recurring [Member] | Natural Gas [Member] | Unobservable Inputs (Level 3) [Member]
Fair Value Measurement, Assets	0	0
Fair Value Measurement, Liabilities	0	0
Fair Value, Measurements, Recurring [Member] | NGLs [Member]
Fair Value Measurement, Assets	7,681	94
Fair Value Measurement, Liabilities	0	8,561
Fair Value, Measurements, Recurring [Member] | NGLs [Member] | Significant Observable Inputs (Level 2) [Member]
Fair Value Measurement, Assets	7,681	94
Fair Value Measurement, Liabilities	0	8,561
Fair Value, Measurements, Recurring [Member] | NGLs [Member] | Unobservable Inputs (Level 3) [Member]
Fair Value Measurement, Assets	0	0
Fair Value Measurement, Liabilities	0	0
Fair Value, Measurements, Recurring [Member] | Condensate [Member]
Fair Value Measurement, Assets	3,974	538
Fair Value Measurement, Liabilities	0	1,567
Fair Value, Measurements, Recurring [Member] | Condensate [Member] | Significant Observable Inputs (Level 2) [Member]
Fair Value Measurement, Assets	3,974	538
Fair Value Measurement, Liabilities	0	1,567
Fair Value, Measurements, Recurring [Member] | Condensate [Member] | Unobservable Inputs (Level 3) [Member]
Fair Value Measurement, Assets	0	0
Fair Value Measurement, Liabilities	0	0
Fair Value, Measurements, Recurring [Member] | Ethane - put option [Member]
Fair Value Measurement, Assets	1,523	309
Embedded Derivatives in Series A Preferred Units	30,644	39,049
Fair Value, Measurements, Recurring [Member] | Ethane - put option [Member] | Significant Observable Inputs (Level 2) [Member]
Fair Value Measurement, Assets	1,523	309
Embedded Derivatives in Series A Preferred Units	0	0
Fair Value, Measurements, Recurring [Member] | Ethane - put option [Member] | Unobservable Inputs (Level 3) [Member]
Fair Value Measurement, Assets	0	0
Embedded Derivatives in Series A Preferred Units	$ 30,644	$ 39,049

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Series A Convertible Redeemable Preferred Units (Beginning And Ending Balances Of The Series A Preferred Units) (Details) (USD $)	6 Months Ended
	Jun. 30, 2012		Sep. 02, 2009
Temporary Equity Disclosure [Abstract]
Beginning balance Series A Preferred Units, shares	4,371,586		4,371,586
Accretion of Series A Preferred Units, shares	0
Ending balance Series A Preferred Units, shares	4,371,586		4,371,586
Beginning balance Series A Preferred Units	$ 71,144,000
Accretion of Series A Preferred Units	1,226,000
Ending balance Series A Preferred Units	72,370,000	[1]
Mandatorily redeemable all accrued but unpaid distributions	$ 80,000,000
Preferred Stock, Redemption Date	Sep. 02, 2029

[1] *This amount will be accreted to $80 million plus any accrued but unpaid distributions and interest by deducting amounts from partners’ capital over the remaining periods until the mandatory redemption date of September 2, 2029.

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Partners' Capital and Distributions (Details) (USD $)	3 Months Ended				6 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Distribution Made to Member or Limited Partner [Line Items]
Dividends payable, date of record, day, month and year	Aug. 06, 2012	May 07, 2012	Feb. 06, 2012
Dividends payable, date to be paid, day, month and year	Aug. 14, 2012	May 14, 2012	Feb. 13, 2012
Distributions per common unit	$ 0.46	$ 0.46	$ 0.46	$ 0.45	$ 0.92	$ 0.895

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Fair Value Measures (Changes In Level 3 Derivatives Measured On A Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
Fair Value Measures [Abstract]
Beginning balance	$ 39,049
Change in fair value	(8,405)
Ending balance	$ 30,644

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Derivative Instruments (Tables)

6 Months Ended

Jun. 30, 2012

Derivative Instruments [Abstract]

Schedule Of Derivative Assets And Liabilities Statement

The Partnership’s derivative assets and liabilities, including credit risk adjustments, as of June 30, 2012 and December 31, 2011 are detailed below:

	Assets				Liabilities
	June 30, 2012		December 31, 2011		June 30, 2012		December 31, 2011
Derivatives designated as cash flow hedges:
Current amounts
Commodity contracts	$	—	$	4,065	$	—	$	10,065
Long-term amounts
Commodity contracts	—		474		—		63
Total cash flow hedging instruments	—		4,539		—		10,128
Derivatives not designated as cash flow hedges:
Current amounts
Commodity contracts	12,838		—		113		—
Ethane put options	1,523		309		—		—
Interest rate swap contracts	—		—		—		470
Long-term amounts
Commodity contracts	1,872		—		—		—
Embedded derivatives in Series A Preferred Units	—		—		30,644		39,049
Total derivatives not designated as cash flow hedges	16,233		309		30,757		39,519
Total derivatives	$	16,233	$	4,848	$	30,757	$	49,647

Detail Effect Of Derivative Assets And Liabilities In Statement Of Operations

The Partnership’s statements of operations and comprehensive income for the three and six months endedJune 30, 2012 and 2011 were impacted by derivative instruments activities as follows:

		Three Months Ended June 30,
		2012			2011
Derivatives in cash flow hedging relationships:		Change in Value Recognized in AOCI on Derivatives (Effective Portion)
Commodity derivatives		$	—		$	1,530
Derivatives in cash flow hedging relationships:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) Reclassified from AOCI into Income (Effective Portion)
Commodity derivatives	Revenues	$	—		$	(7,133	)
Derivatives in cash flow hedging relationships:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) Recognized in Income on Ineffective Portion
Commodity derivatives	Revenues	$	—		$	(362	)
Derivatives not designated in a hedging relationship:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) from Dedesignation Amortized from AOCI into Income
Commodity derivatives	Revenues	$	(2,159	)	$	—
Derivatives not designated in a hedging relationship:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) Recognized in Income on Derivatives
Commodity derivatives	Revenues	$	17,146		$	(47	)
Interest rate swap contracts	Interest expense, net	—			(228		)
Embedded derivatives in Series A Preferred Units	Other income &  deductions, net	7,909			2,950
		$	25,055		$	2,675

		Six Months Ended June 30,
		2012			2011
Derivatives in cash flow hedging relationships:		Change in Value Recognized in AOCI on Derivatives (Effective Portion)
Commodity derivatives		$	—		$	(15,466	)
Derivatives in cash flow hedging relationships:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) Reclassified from AOCI into Income (Effective Portion)
Commodity derivatives	Revenues	$	—		$	(8,994	)
Derivatives in cash flow hedging relationships:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) Recognized in Income on Ineffective Portion
Commodity derivatives	Revenues	$	—		$	(274	)
Derivatives not designated in a hedging relationship:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) from Dedesignation Amortized from AOCI into Income
Commodity derivatives	Revenues	$	(5,824	)	$	—
Derivatives not designated in a hedging relationship:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) Recognized in Income on Derivatives
Commodity derivatives	Revenues	$	19,627		$	12
Interest rate swap contracts	Interest expense, net	(12		)	(487		)
Embedded derivatives in Series A Preferred Units	Other income &  deductions, net	8,405			5,525
		$	28,020		$	5,050

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Segment Information (Reconciliation Of Total Segment Margin To Net Income (Loss) From Continuing Operations Before Income Taxes) (Details) (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]
Total segment margin	$ 125,161	$ 97,023	$ 243,407		$ 198,014
Operation and maintenance	(38,992)	(33,996)	(79,973)		(67,556)
General and administrative, including related party	(16,476)	(17,551)	(32,171)		(36,660)
Loss on asset sales, net	(1,548)	(153)	(1,584)		(181)
Depreciation and amortization	(45,132)	(40,503)	(96,638)		(80,739)
Income from unconsolidated affiliates	34,185	32,167	66,143		55,975
Interest expense, net	(27,934)	(24,689)	(57,491)		(44,696)
Gains (losses) on extinguishment of debt, net	(7,820)	0	(7,820)		0
Other income and deductions, net	7,921	2,641	24,443	[1]	5,055
Income (loss) before income taxes	29,365	14,939	58,316		29,212
Customer Contracts [Member]
Segment Reporting Information [Line Items]
Other income and deductions, net			$ 15,600

[1] *Other income and deductions, net for the six months ended June 30, 2012 included a one-time producer payment of $15.6 million related to an assignment of certain contracts.

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Long-Term Debt (Narrative) (Details) (USD $)	1 Months Ended	6 Months Ended
	May 31, 2012	Jun. 30, 2012	Jun. 30, 2011
Debt Instrument, Unamortized Premium		$ 3,100,000
Revolving credit facility weighted-average interest rate		2.88%	2.77%
Repayments of long-term debt	$ 87,500,000	$ 87,500,000	$ 0
Senior Note Redemption Percentage	109.375%
Common Unit Public Offering [Member]
Senior note redeemable portion	35.00%

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Investment In Unconsolidated Affiliates (Changes In Partnership's Investment) (Details) (USD $)	3 Months Ended			6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011		Jun. 30, 2012	Jun. 30, 2011
Distributions received from unconsolidated affiliates				$ 63,096,000	$ 50,510,000
Share of unconsolidated affiliates' net income (loss)	34,185,000	32,167,000		66,143,000	55,975,000
HPC [Member]
Contributions to unconsolidated affiliates	0	0		0	0
Distributions received from unconsolidated affiliates	13,871,000	18,113,000		30,030,000	34,841,000
Share of unconsolidated affiliates' net income (loss)	13,108,000	15,130,000		24,417,000	30,205,000
Amortization of excess fair value of investment	(1,461,000)	(1,461,000)		(2,923,000)	(2,923,000)
MEP [Member]
Contributions to unconsolidated affiliates	0	0		0	0
Distributions received from unconsolidated affiliates	18,796,000	18,222,000		38,182,000	43,659,000
Share of unconsolidated affiliates' net income (loss)	10,189,000	10,110,000		20,936,000	20,305,000
Amortization of excess fair value of investment	0	0		0	0
Lone Star [Member]
Contributions to unconsolidated affiliates	95,414,000	591,681,000	[1]	175,254,000	591,681,000	[1]
Distributions received from unconsolidated affiliates	10,787,000	0	[1]	17,743,000	0	[1]
Share of unconsolidated affiliates' net income (loss)	12,366,000	8,388,000	[1]	23,730,000	8,388,000	[1]
Amortization of excess fair value of investment	0	0	[1]	0	0	[1]
Ranch JV [Member]
Contributions to unconsolidated affiliates	8,944,000			22,356,000
Distributions received from unconsolidated affiliates	0			0
Share of unconsolidated affiliates' net income (loss)	(17,000)			(17,000)
Amortization of excess fair value of investment	$ 0			$ 0

[1] (1)For the period from initial contribution, May 2, 2011, to June 30, 2011.

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Equity-Based Compensation (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012 years	Jun. 30, 2011	Jun. 30, 2012 years	Jun. 30, 2011
Equity-Based Compensation [Abstract]
Partnership's LTIP units authorized grants, maximum	5,865,584		5,865,584
LTIP compensation expense	$ 1,000,000	$ 800,000	$ 2,294,000	$ 1,747,000
Common units options, aggregate intrinsic value	300,000		300,000
Common units options, weighted average contractual terms in years	3.9		3.9
Proceeds from the exercise of unit options				700,000
Non-vested phantom units, compensation expense	$ 17,800,000		$ 17,800,000
Non-vested phantom units period, in years	3.8

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Related Party Transactions (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		12 Months Ended	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 ETE [Member]	Jun. 30, 2011 ETE [Member]	Jun. 30, 2012 ETE [Member]	Jun. 30, 2011 ETE [Member]	Dec. 31, 2012 ETE [Member] May Twenty Six Service Agreement [Member]	Jun. 30, 2012 ETP [Member]	Jun. 30, 2011 ETP [Member]	Jun. 30, 2012 ETP [Member]	Jun. 30, 2011 ETP [Member]	Jun. 30, 2012 General Partner Interest [Member]	Jun. 30, 2011 General Partner Interest [Member]	Jun. 30, 2012 General Partner Interest [Member]	Jun. 30, 2011 General Partner Interest [Member]	Jun. 30, 2012 HPC [Member]	Jun. 30, 2011 HPC [Member]	Jun. 30, 2012 HPC [Member]	Jun. 30, 2011 HPC [Member]
Reimbursement of all direct and indirect expenses									$ 10,000,000
Reimbursement of all direct and indirect expenses					4,300,000	4,200,000	8,600,000	8,100,000		6,200,000	3,100,000	14,500,000	8,600,000	11,000,000	4,200,000	24,800,000	24,600,000
Cash distributions received					15,500,000	14,100,000	31,000,000	28,100,000
Sale of compression equipment										800,000	5,500,000	800,000	6,300,000
General and administrative, including related party	$ 16,476,000	$ 17,551,000	$ 32,171,000	$ 36,660,000														$ 5,100,000	$ 4,200,000	$ 9,300,000	$ 8,400,000

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Organization And Summary Of Significant Accounting Policies

6 Months Ended

Jun. 30, 2012

Organization And Summary Of Significant Accounting Policies

Organization And Summary Of Significant Accounting Policies

Organization and Summary of Significant Accounting Policies

Organization. The unaudited condensed consolidated financial statements presented herein contain the results of Regency Energy Partners LP and its subsidiaries ("Partnership"), a Delaware limited partnership. The Partnership and its subsidiaries are engaged in the business of gathering and processing, contract compression, treating and transportation of natural gas and the transportation, fractionation and storage of NGLs. Regency GP LP is the Partnership’s general partner and Regency GP LLC (collectively the “General Partner”) is the general partner of Regency GP LP.

Basis of Presentation. The unaudited financial information included in this Form 10-Q has been prepared on the same basis as the audited consolidated financial statements included in the Partnership’s Annual Report on Form 10-K for the year ended December 31, 2011. In the opinion of the Partnership’s management, such financial information reflects all adjustments necessary for a fair presentation of the financial position and the results of operations for such interim periods in accordance with GAAP. All intercompany items and transactions have been eliminated in consolidation. Certain information and footnote disclosures normally included in annual consolidated financial statements prepared in accordance with GAAP have been omitted pursuant to the rules and regulations of the SEC.

Use of Estimates. The unaudited condensed consolidated financial statements have been prepared in conformity with GAAP, which includes the use of estimates and assumptions made by management that affect the reported amounts of assets, liabilities, revenues, expenses and disclosure of contingent assets and liabilities that exist at the date of the condensed consolidated financial statements. Although these estimates are based on management’s available knowledge of current and expected future events, actual results could be different from those estimates.

Property, Plant and Equipment. In March 2012, the Partnership recorded a $6.9 million “out-of-period” adjustment to depreciation expense to correct the estimated useful lives of certain assets to comply with its policy. The adjustment to depreciation expense related to the year ended December 31, 2011 and the period from May 26, 2010 to December 31, 2010 was $4.4 million and $2.5 million, respectively. The adjustment to depreciation expense related to the three and six months ended June 30, 2011 was $1.1 million and $2.2 million, respectively.

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Long-Term Debt (Partnership's Long-Term Debt) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Long-Term Debt Disclosure [Abstract]
Senior notes	$ 1,265,558	$ 1,355,147
Revolving loans	515,000	332,000
Total	1,780,558	1,687,147
Less: current portion	0	0
Long-term debt	1,780,558	1,687,147
Total credit facility limit	900,000	900,000
Revolving loans	(515,000)	(332,000)
Letters of credit	(9,000)	(19,000)
Total available	$ 376,000	$ 549,000

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Equity-Based Compensation (Tables) (Phantom Units [Member])

6 Months Ended

Jun. 30, 2012

Phantom Units [Member]

Phantom Units Activity

The following table presents phantom units activity for the six months ended June 30, 2012:

Phantom Units	Units		Weighted Average Grant Date Fair Value
Outstanding at beginning of period	1,086,393		$	24.51
Service condition grants	7,250		24.40
Vested service condition	(23,553	)	22.96
Vested market condition	(10,200	)	19.52
Forfeited service condition	(64,934	)	24.90
Forfeited market condition	(3,750	)	19.52
Outstanding at end of period	991,206		24.59

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Segment Information (Tables)

6 Months Ended

Jun. 30, 2012

Segment Information [Abstract]

Amounts Related To Balance Sheets For Each Segment

Management believes segment margin is an important measure because it directly relates to volume, commodity p

Reconciliation Of Total Segment Margin To Net Income (Loss) From Continuing Operations Before Income Taxes

The table below provides a reconciliation of total segment margin to income before income taxes:

	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012				2011
Total segment margin	$	125,161		$	97,023		$	243,407			$	198,014
Operation and maintenance	(38,992		)	(33,996		)	(79,973		)		(67,556		)
General and administrative	(16,476		)	(17,551		)	(32,171		)		(36,660		)
Loss on asset sales, net	(1,548		)	(153		)	(1,584		)		(181		)
Depreciation and amortization	(45,132		)	(40,503		)	(96,638		)		(80,739		)
Income from unconsolidated affiliates	34,185			32,167			66,143				55,975
Interest expense, net	(27,934		)	(24,689		)	(57,491		)		(44,696		)
Loss on debt refinancing, net	(7,820		)	—			(7,820		)		—
Other income and deductions, net	7,921			2,641			24,443			*	5,055
Income before income taxes	$	29,365		$	14,939		$	58,316			$	29,212

__________________

* Other income and deductions, net for the six months ended June 30, 2012 included a one-time producer payment of $15.6 million related to an assignment of certain contracts.

Schedule Of Assets Related To Balance Sheet

The table below provides a listing of assets reflected in the consolidated balance sheet for each segment:

	June 30, 2012		December 31, 2011
Gathering and Processing	$	2,062,306	$	1,959,697
Joint Ventures	2,080,163		1,924,705
Contract Compression	1,405,989		1,405,600
Contract Treating	219,377		215,172
Corporate and Others	64,727		62,682
Total	$	5,832,562	$	5,567,856

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Fair Value Measures Significant Quantitative Unobservable Inputs for Embedded Derivative Fair Value (Details)	Jun. 30, 2012
Fair Value Measures [Abstract]
Fair Value, Embedded Derivatives Significant Unobservable Input, Credit Spread	6.83%
Fair Value, Embedded Derivatives Significant Unobservable Input, Volatility	18.02%

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Long-Term Debt (Long-Term Debt Maturities) (Details) (USD $)	Jun. 30, 2012
Long-Term Debt Disclosure [Abstract]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	$ 0
Long-term Debt, Maturities, Repayments of Principal in Year Two	0
Long-term Debt, Maturities, Repayments of Principal in Year Three	515,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Four	0
Long-term Debt, Maturities, Repayments of Principal in Year Five	162,500,000
Long-term Debt, Maturities, Repayments of Principal after Year Five	1,100,000,000
Long-term Debt Maturities, Total Repayments of Principal	1,777,500,000	[1]
Debt Instrument, Unamortized Premium	$ 3,100,000

[1] *Excludes unamortized premiums of $3.1 million as of June 30, 2012.

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Fair Value Measures (Tables)

6 Months Ended

Jun. 30, 2012

Fair Value Measures [Abstract]

Partnership's Derivative Assets And Liabilities Measured At Fair Value On A Recurring Basis

The following table presents the Partnership's derivative assets and liabilities measured at fair value on a recurring basis:

	Fair Value Measurements at June 30, 2012						Fair Value Measurements at December 31, 2011
	Fair Value Total		Significant Observable Inputs (Level 2)		Unobservable Inputs (Level 3)		Fair Value Total		Significant Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
Assets:
Commodity Derivatives:
Natural Gas	$	3,055	$	3,055	$	—	$	3,907	$	3,907	$	—
NGLs	7,681		7,681		—		94		94		—
Condensate	3,974		3,974		—		538		538		—
Ethane - Put Options	1,523		1,523		—		309		309		—
Total Assets	$	16,233	$	16,233	$	—	$	4,848	$	4,848	$	—
Liabilities:
Interest Rate Derivatives	$	—	$	—	$	—	$	470	$	470	$	—
Commodity Derivatives:
Natural Gas	113		113		—		—		—		—
NGLs	—		—		—		8,561		8,561		—
Condensate	—		—		—		1,567		1,567		—
Embedded Derivatives in Series A Preferred Units	30,644		—		30,644		39,049		—		39,049
Total Liabilities	$	30,757	$	113	$	30,644	$	49,647	$	10,598	$	39,049

Fair Value, Significant Unobservable Inputs for Estimation of Embedded Derivitives [Table Text Block]

The following table presents the material unobservable inputs used to estimate the fair value of the embedded derivatives in the Series A Preferred Units:

Unobservable Input	June 30, 2012
Credit Spread	6.83	%
Volatility	18.02	%

Changes In Level 3 Derivatives Measured On A Recurring Basis

The following table presents the changes in Level 3 derivatives measured on a recurring basis for the six months ended June 30, 2012. There were no transfers between the fair value hierarchy levels for the six months ended June 30, 2012.

	Embedded Derivatives in Series A Preferred Units
Balance at December 31, 2011	$	39,049
Change in fair value	(8,405		)
Balance at June 30, 2012	$	30,644

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Organization And Summary Of Significant Accounting Policies Property, Plant and Equipment (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended	7 Months Ended	12 Months Ended	19 Months Ended
	Jun. 30, 2011	Jun. 30, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Depreciation out of period adjustment	$ 1.1	$ 2.2	$ 2.5	$ 4.4	$ 6.9

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Condensed Consolidated Statement of Partners' Capital and Noncontrolling Interest (USD $) In Thousands, except Share data	Total USD ($)	Common Stock [Member]	Common Units [Member] USD ($)	General Partner Interest [Member] USD ($)	Accumulated Other Comprehensive Income (Loss) [Member] USD ($)	Noncontrolling Interest [Member] USD ($)
Balance at Dec. 31, 2011	$ 3,531,076		$ 3,173,090	$ 329,876	$ (4,759)	$ 32,869
Balance - (in Units) at Dec. 31, 2011		157,437,608
Common unit offering, net of costs - (in Units)		12,650,000
Common unit offering, net of costs	296,817		296,817
Issuance of common units under LTIP, net of forfeitures and tax withholding - (in Units)		25,958
Issuance of common units under LTIP, net of forfeitures and tax withholdings - (in dollars)	(207)		(207)
Unit-based compensation expenses	2,294		2,294
Transfer of assets between entities under common control in excess of historical cost	136			136
Partner distributions	(158,226)		(151,579)	(6,647)
Accrued distributions to phantom units	(65)		(65)
Net income	58,227		52,186	4,993		1,048
Contributions from noncontrolling interest	9,834					9,834
Distributions to Series A Preferred Units	(3,891)		(3,826)	(65)
Accretion of Series A Preferred Units	(1,226)		(1,205)	(21)
Net cash flow hedge amounts reclassified to earnings	5,824				5,824
Balance at Jun. 30, 2012	$ 3,740,593		$ 3,367,505	$ 328,272	$ 1,065	$ 43,751
Balance - (in Units) at Jun. 30, 2012		170,113,566

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Partners' Capital and Distributions Narrative (Details) (USD $)	1 Months Ended	6 Months Ended		1 Months Ended	3 Months Ended
	May 31, 2012	Jun. 30, 2012	Jun. 30, 2011	May 31, 2012 Common Unit Public Offering [Member]	Mar. 31, 2012 Common Unit Public Offering [Member]
Capital Unit [Line Items]
Equity Distribution Agreement maximum aggregate value of common units to be sold		$ 200,000,000
Partners' capital account, units, sold in public offering					12,650,000
Common issuance price per unit					$ 24.47
Common unit offering, net of costs		296,817,000	203,917,000
Senior note redeemable portion				35.00%
Repayments of long-term debt	$ 87,500,000	$ 87,500,000	$ 0

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Derivative Instruments (Schedule Of Derivative Assets And Liabilities Statement) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Derivative asset, fair value, gross asset	$ 16,233	$ 4,848
Derivative liability, fair value, gross liability	30,757	49,647
Derivatives designated as cash flow hedges [Member] | Commodity derivatives [Member]
Derivative asset, fair value, gross asset	0	4,539
Derivative liability, fair value, gross liability	0	10,128
Derivatives not designated as cash flow hedges [Member]
Derivative asset, fair value, gross asset	16,233	309
Derivative liability, fair value, gross liability	30,757	39,519
Current [Member] | Derivatives designated as cash flow hedges [Member] | Commodity derivatives [Member]
Derivative asset, fair value, gross asset	0	4,065
Derivative liability, fair value, gross liability	0	10,065
Current [Member] | Derivatives not designated as cash flow hedges [Member] | Commodity derivatives [Member]
Derivative asset, fair value, gross asset	12,838	0
Derivative liability, fair value, gross liability	113	0
Current [Member] | Derivatives not designated as cash flow hedges [Member] | Ethane - put option [Member]
Derivative asset, fair value, gross asset	1,523	309
Derivative liability, fair value, gross liability	0	0
Current [Member] | Derivatives not designated as cash flow hedges [Member] | Interest rate swap contracts [Member]
Derivative asset, fair value, gross asset	0	0
Derivative liability, fair value, gross liability	0	470
Long Term [Member] | Derivatives designated as cash flow hedges [Member] | Commodity derivatives [Member]
Derivative asset, fair value, gross asset	0	474
Derivative liability, fair value, gross liability	0	63
Long Term [Member] | Derivatives not designated as cash flow hedges [Member] | Commodity derivatives [Member]
Derivative asset, fair value, gross asset	1,872	0
Derivative liability, fair value, gross liability	0	0
Long Term [Member] | Derivatives not designated as cash flow hedges [Member] | Embedded derivatives in Series A Preferred Units [Member]
Derivative asset, fair value, gross asset	0	0
Derivative liability, fair value, gross liability	$ 30,644	$ 39,049

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Equity-Based Compensation (Phantom Units) (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2012 years	Jun. 30, 2012 Phantom Units [Member]
Outstanding at the beginning of the period, Units		1,086,393
Service condition grants, Units		7,250
Vested service condition, Units		(23,553)
Vested market condition, Units		(10,200)
Forfeited or expired, Units		(64,934)
Forfeited market condition, Units		(3,750)
Outstanding at the end of period, Units		991,206
Outstanding at the beginning of the period, Weighted Average Grant Date Fair Value		$ 24.51
Service condition grants, Weighted Average Grant Date Fair Value		$ 24.40
Vested service condition, Weighted Average Grant Date Fair Value		$ 22.96
Vested market condition, Weighted Average Grant Date Fair Value		$ 19.52
Forfeited service condition, Weighted Average Grant Date Fair Value		$ 24.90
Forfeited market condition, Weighted Average Grant Date Fair Value		$ 19.52
Outstanding at the end of the period, Weighted Average Grant Date Fair Value		$ 24.59
Non-vested phantom units, compensation expense	$ 17.8
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term	3.8

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Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012		Dec. 31, 2011
Current Assets:
Cash and cash equivalents	$ 15,883		$ 990
Trade accounts receivable, net of allowance	32,407		43,917
Accrued revenues	76,850		68,011
Related party receivables	20,712		45,204
Derivative assets	14,361		4,374
Other current assets	24,721		24,628
Total current assets	184,934		187,124
Property, Plant and Equipment:
Property, plant and equipment	2,264,661		2,080,932
Less accumulated depreciation	(272,213)		(195,404)
Property, plant and equipment, net	1,992,448		1,885,528
Other Assets:
Investment in unconsolidated affiliates	2,102,503		1,924,705
Long-term derivative assets	1,872		474
Other, net of accumulated amortization of debt issuance costs	34,770		39,353
Total other assets	2,139,145		1,964,532
Intangible assets, net of accumulated amortization	726,246		740,883
Goodwill	789,789		789,789
TOTAL ASSETS	5,832,562		5,567,856
Current Liabilities:
Drafts payable	349		2,507
Trade accounts payable	65,399		73,462
Accrued cost of gas and liquids	56,043		84,943
Related party payables	35,362		12,625
Deferred revenues, including related party amounts	13,376		16,225
Derivative liabilities	113		10,535
Other current liabilities	32,034		33,009
Total current liabilities	202,676		233,306
Long-term derivative liabilities	30,644		39,112
Other long-term liabilities	5,721		6,071
Long-term debt, net	1,780,558		1,687,147
Commitments and contingencies
Series A Preferred Units	72,370	[1]	71,144
Partners' capital and noncontrolling interest:
Common units	3,367,505		3,173,090
General partner interest	328,272		329,876
Accumulated other comprehensive income (loss)	1,065		(4,759)
Total partners' capital	3,696,842		3,498,207
Noncontrolling interest	43,751		32,869
Total partners' capital and noncontrolling interest	3,740,593		3,531,076
TOTAL LIABILITIES AND PARTNERS' CAPITAL AND NONCONTROLLING INTEREST	$ 5,832,562		$ 5,567,856

[1] *This amount will be accreted to $80 million plus any accrued but unpaid distributions and interest by deducting amounts from partners’ capital over the remaining periods until the mandatory redemption date of September 2, 2029.

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Series A Convertible Redeemable Preferred Units (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Dec. 31, 2011	Sep. 02, 2009
Temporary Equity Disclosure [Abstract]
Series A Preferred Units, shares issued	4,371,586	4,371,586	4,371,586
Common Units To Be Issued Upon Conversion Of Preferred Units	4,645,229
Preferred Stock, Redemption Date	Sep. 02, 2029
Mandatorily redeemable all accrued but unpaid distributions	$ 80
Series A Preferred Units fixed quarterly dividend	$ 0.445

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Condensed 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	$ 29,327	$ 14,837	$ 58,227	$ 29,142
Net cash flow hedge amounts reclassified to earnings	2,159	5,565	5,824	8,994
Change in fair value of cash flow hedges	0	1,530	0	(15,466)
Total other comprehensive income (loss)	2,159	7,095	5,824	(6,472)
Comprehensive income	31,486	21,932	64,051	22,670
Comprehensive income attributable to noncontrolling interest	649	293	1,048	524
Comprehensive income attributable to Regency Energy Partners LP	$ 30,837	$ 21,639	$ 63,003	$ 22,146

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Investment In Unconsolidated Affiliates (Narrative) (Details)	Jun. 30, 2012
HPC [Member]
Ownership interest in affiliate	49.99%
MEP [Member]
Ownership interest in affiliate	50.00%
Lone Star [Member]
Ownership interest in affiliate	30.00%
Ranch JV [Member]
Ownership interest in affiliate	33.33%

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Partners' Capital and Distributions (Tables)

6 Months Ended

Jun. 30, 2012

Partners’ Capital and Distributions [Abstract]

Schedule of Distributions Made to Members or Limited Partners, by Distribution [Table Text Block]

Quarterly Distributions of Available Cash. Following are distributions declared by the Partnership subsequent to December 31, 2011:

Quarter Ended	Record Date	Payment Date	Cash Distributions (per common unit)
December 31, 2011	February 6, 2012	February 13, 2012	$0.46
March 31, 2012	May 7, 2012	May 14, 2012	$0.46
June 30, 2012	August 6, 2012	August 14, 2012	$0.46

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Investment In Unconsolidated Affiliates Carrying Value of Unconsolidated Affiliates (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Investment in unconsolidated affiliates, carrying value	$ 2,102,503	$ 1,924,705
HPC [Member]
Investment in unconsolidated affiliates, carrying value	673,510	682,046
MEP [Member]
Investment in unconsolidated affiliates, carrying value	596,696	613,942
Lone Star [Member]
Investment in unconsolidated affiliates, carrying value	809,958	628,717
Ranch JV [Member]
Investment in unconsolidated affiliates, carrying value	$ 22,339	$ 0

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Investment In Unconsolidated Affiliates (Tables)

6 Months Ended

Jun. 30, 2012

Carrying value of limited and general partnership interest [Table Text Block]

The carrying value of the Partnership's investment in each of the unconsolidated affiliates as of June 30, 2012 and December 31, 2011 is as follows:

	June 30, 2012		December 31, 2011
HPC	$	673,510	$	682,046
MEP	596,696		613,942
Lone Star	809,958		628,717
Ranch JV	22,339		—
	$	2,102,503	$	1,924,705

Changes In The Partnership's Investment

The following tables summarize the Partnership's investment activities in each of the unconsolidated affiliates for the three and six months endedJune 30, 2012 and 2011:

	Three Months Ended June 30, 2012
	HPC			MEP		Lone Star		Ranch JV
Contributions to unconsolidated affiliates	$	—		$	—	$	95,414	$	8,944
Distributions from unconsolidated affiliates	13,871			18,796		10,787		—
Share of unconsolidated affiliates' net income (loss)	13,108			10,189		12,366		(17		)
Amortization of excess fair value of investment	(1,461		)	—		—		—

	Three Months Ended June 30, 2011
	HPC			MEP		Lone Star(1)		Ranch JV
Contributions to unconsolidated affiliates	$	—		$	—	$	591,681	N/A
Distributions from unconsolidated affiliates	18,113			18,222		—		N/A
Share of unconsolidated affiliates' net income	15,130			10,110		8,388		N/A
Amortization of excess fair value of investment	(1,461		)	—		—		N/A

	Six Months Ended June 30, 2012
	HPC			MEP		Lone Star		Ranch JV
Contributions to unconsolidated affiliates	$	—		$	—	$	175,254	$	22,356
Distributions from unconsolidated affiliates	30,030			38,182		17,743		—
Share of unconsolidated affiliates' net income (loss)	24,417			20,936		23,730		(17		)
Amortization of excess fair value of investment	(2,923		)	—		—		—

	Six Months Ended June 30, 2011
	HPC			MEP		Lone Star(1)		Ranch JV
Contributions to unconsolidated affiliates	$	—		$	—	$	591,681	N/A
Distributions from unconsolidated affiliates	34,841			43,659		—		N/A
Share of unconsolidated affiliates' net income	30,205			20,305		8,388		N/A
Amortization of excess fair value of investment	(2,923		)	—		—		N/A

__________________

(1) For the period from initial contribution, May 2, 2011, to June 30, 2011.

N/A The Partnership acquired a 33.33% membership interest in Ranch JV in December 2011.

Condensed Consolidated Income Statements

The following tables present selected income statement data for each of the unconsolidated affiliates, on a 100% basis, for the three and six months endedJune 30, 2012 and 2011:

	Three Months Ended June 30, 2012
	HPC		MEP		Lone Star		Ranch JV
Total revenues	$	46,324	$	64,969	$	157,591	$	130
Operating income (loss)	26,680		33,274		40,066		(27		)
Net income (loss)	26,222		20,377		41,220		(27		)
	Three Months Ended June 30, 2011
	HPC		MEP		Lone Star(1)		Ranch JV
Total revenues	$	48,585	$	64,943	$	98,820	N/A
Operating income	30,515		33,190		28,143		N/A
Net income	30,265		20,276		27,958		N/A

	Six Months Ended June 30, 2012
	HPC		MEP		Lone Star		Ranch JV
Total revenues	$	88,140	$	131,129	$	324,586	$	130
Operating income (loss)	49,649		67,663		78,620		(51		)
Net income (loss)	48,844		41,871		79,101		(51		)
	Six Months Ended June 30, 2011
	HPC		MEP		Lone Star(1)		Ranch JV
Total revenues	$	97,234	$	129,767	$	98,820	N/A
Operating income	60,842		66,455		28,143		N/A
Net income	60,421		40,686		27,958		N/A

__________________

(1) For the period from initial contribution, May 2, 2011, to June 30, 2011.

N/A The Partnership acquired a 33.33% membership interest in Ranch JV in December 2011.

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Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
OPERATING ACTIVITIES:
Net income	$ 58,227	$ 29,142
Adjustments to reconcile net income (loss) to net cash flows provided by operating activities:
Depreciation and amortization, including debt issuance cost, amortization and bond premium amortization	99,359	83,587
Income from unconsolidated affiliates	(66,143)	(55,975)
Derivative valuation changes	(24,450)	(5,826)
Loss on asset sales, net	1,584	181
Unit-based compensation expenses	2,294	1,747
Cash flow changes in current assets and liabilities:
Trade accounts receivable, accrued revenues and related party receivables	21,052	(8,847)
Other current assets	179	964
Trade accounts payable, accrued cost of gas and liquids, related party payables and deferred revenues	(51,903)	28,577
Other current liabilities	(976)	(2,764)
Distributions received from unconsolidated affiliates	63,096	50,510
Other assets and liabilities	(123)	(182)
Net cash flows provided by operating activities	102,196	121,114
INVESTING ACTIVITIES:
Capital expenditures	(197,941)	(172,236)
Capital contributions to unconsolidated affiliates	(169,751)	(591,681)
Distribution in excess of earnings of unconsolidated affiliates	22,859	27,990
Proceeds from asset sales	20,411	4,003
Net cash flows used in investing activities	(324,422)	(731,924)
FINANCING ACTIVITIES:
Net borrowings under revolving credit facility	183,000	45,000
Proceeds from issuance of senior notes	0	500,000
Redemption of senior notes	(87,500)	0
Debt issuance costs	(686)	(9,936)
Drafts payable	(2,158)	0
Partner distributions	(158,226)	(131,106)
Disposition of assets between entities under common control in excess of historical cost	136	25
Contributions from noncontrolling interest	9,834	0
Issuance of common units under LTIP, net of forfeitures and tax withholding	(207)	506
Common unit offering, net of costs	296,817	203,917
Distributions to Series A Preferred Units	(3,891)	(3,891)
Net cash flows provided by financing activities	237,119	604,515
Net change in cash and cash equivalents	14,893	(6,295)
Cash and cash equivalents at beginning of period	990	9,400
Cash and cash equivalents at end of period	15,883	3,105
Non-cash Investing Activities:
Accrued capital expenditures and contributions to unconsolidated affiliates	$ 58,940	$ 14,598

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Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Trade accounts receivable, allowance	$ 973	$ 1,190
Other, accumulated amortization of debt issuance costs	13,257	10,186
Intangible assets, accumulated amortization	59,492	44,856
Deferred revenues, related party amounts	52	41
Series A Preferred Units, redemption amount	$ 85,008	$ 84,773

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Related Party Transactions

6 Months Ended

Jun. 30, 2012

Related Party Transactions [Abstract]

Related Party Transactions Disclosure [Text Block]

Related Party Transactions

Transactions with ETE and its subsidiaries. Under the service agreement with Services Co., the Partnership pays Services Co.’s direct expenses for services performed, plus an annual fee of $10 million, and receives the benefit of any cost savings recognized for these services. The services agreement has a five year term which expires May 26, 2015, subject to earlier termination rights in the event of a change in control, the failure to achieve certain cost savings for the Partnership or upon an event of default. The Partnership also, together with the General Partner and RGS, entered into an operation and service agreement (the “Operations Agreement”) with ETC. Under the Operations Agreement, ETC will perform certain operations, maintenance and related services reasonably required to operate and maintain certain facilities owned by the Partnership. Pursuant to the Operations Agreement, the Partnership will reimburse ETC for actual costs and expenses incurred in connection with the provision of these services based on an annual budget agreed-upon by both parties. The Operations Agreement automatically renews on a year-to-year basis upon expiration of the initial term. The Partnership incurred total service fees of $4.3 million and $4.2 million for the three months ended June 30, 2012 and 2011, respectively, and $8.6 million and $8.1 million for the six months ended June 30, 2012 and 2011, respectively.

In conjunction with distributions by the Partnership on the basis of limited and general partner interests, ETE received cash distributions of $15.5 million and $14.1 million for the three months ended June 30, 2012 and 2011, respectively, and $31 million and $28.1 million for the for the six months ended June 30, 2012 and 2011, respectively.

The Partnership's Gathering and Processing segment, in the ordinary course of business, sells natural gas and NGLs to subsidiaries of ETE and records the revenue in gas sales and NGL sales. The Partnership’s Contract Compression segment provides contract compression services to subsidiaries of ETP and records revenue in gathering, transportation and other fees. The Partnership’s Contract Compression segment sold compression equipment to a subsidiary of ETP for $0.8 million and $5.5 million for the three months ended June 30, 2012 and 2011, respectively, and $0.8 million and $6.3 million for the six months ended June 30, 2012 and 2011.

Pursuant to the Partnership agreement, the General Partner receives a monthly reimbursement for all direct and indirect expenses incurred on behalf of the Partnership. Effective January 1, 2011, certain employees of the Partnership became employees of ETP, and the Partnership reimburses ETP for all direct and indirect expenses incurred on behalf of the Partnership related to those employees. Reimbursements were recorded to the General Partner for $11 million and $4.2 million during the three months ended June 30, 2012 and 2011, respectively, and $24.8 million and $24.6 million during the six months ended June 30, 2012 and 2011, respectively, in the Partnership’s financial statements as operating expenses or general and administrative expenses. Reimbursements were also recorded to ETP for $6.2 million and $3.1 million during the three months ended June 30, 2012 and 2011, respectively, and $14.5 million and $8.6 million during the six months ended June 30, 2012 and 2011, respectively, in the Partnership’s financial statements as operating expenses or general and administrative expenses.

Transactions with HPC. Under a Master Services Agreement with HPC, the Partnership operates and provides all employees and services for the operation and management of HPC. Related party general and administrative expenses reimbursed to the Partnership were $5.1 million and $4.2 million for the three months ended June 30, 2012 and 2011, respectively, and $9.3 million and $8.4 million for the six months ended June 30, 2012 and 2011, respectively, which are recorded in gathering, transportation and other fees.

The Partnership’s Contract Compression segment provides contract compression services to HPC and records revenues in gathering, transportation and other fees. The Partnership also receives transportation services from HPC and records those as cost of sales.

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Document And Entity Information	6 Months Ended
	Jun. 30, 2012	Aug. 01, 2012
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q2
Trading Symbol	RGP
Entity Registrant Name	Regency Energy Partners LP
Entity Central Index Key	0001338613
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		170,113,566

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Segment Information

6 Months Ended

Jun. 30, 2012

Segment Information [Abstract]

Segment Reporting Disclosure [Text Block]

Segment Information

The Partnership has the following five reportable segments:

Gathering and Processing. The Partnership provides “wellhead-to-market” services to producers of natural gas, which include transporting raw natural gas from the wellhead through gathering systems, processing raw natural gas to separate NGLs from the raw natural gas and selling or delivering pipeline-quality natural gas and NGLs to various markets and pipeline systems. This segment also includes the Partnership's investment in Ranch JV, which processes natural gas delivered from the NGLs-rich Bone Spring and Avalon shale formations in west Texas. The Partnership initially included Ranch JV in the Joint Ventures segment upon formation in December 2011 until March 31, 2012, during which time Ranch JV's only activity was the construction of capital projects.

Joint Ventures. The Partnership's Joint Ventures segment includes the following:

◦ a 49.99% general partner interest in HPC, which owns RIGS, a 450 mile intrastate pipeline that delivers natural gas from northwest Louisiana to downstream pipelines and markets;

◦ a 50% membership interest in MEP, which owns an interstate natural gas pipeline with approximately 500 miles stretching from southeast Oklahoma through northeast Texas, northern Louisiana and central Mississippi to an interconnect with the Transcontinental Gas Pipe Line system in Butler, Alabama; and

◦ a 30% membership interest in Lone Star, an entity owning a diverse set of midstream energy assets including NGL pipelines, storage, fractionation and processing facilities located in the states of Texas, Mississippi and Louisiana.

Contract Compression. The Partnership owns and operates a fleet of compressors used to provide turn-key natural gas compression services for customer specific systems.

Contract Treating. The Partnership owns and operates a fleet of equipment used to provide treating services, such as carbon dioxide and hydrogen sulfide removal, natural gas cooling, dehydration and BTU management, to natural gas producers and midstream pipeline companies.

Corporate and Others. The Corporate and Others segment comprises a small regulated pipeline and the Partnership’s corporate offices.

The Partnership accounts for intersegment revenues as if the revenues were to third parties, exclusive of certain cost of capital charges.

Management evaluates the performance of each segment and makes capital allocation decisions through the separate consideration of segment margin and operation and maintenance expenses. Segment margin for the Gathering and Processing and the Corporate and Others segments is defined as total revenues, including service fees, less cost of sales. In the Contract Compression segment and Contract Treating segment, segment margin is defined as revenues less direct costs.

Management believes segment margin is an important measure because it directly relates to volume, commodity price changes, revenue generating horsepower and revenue generating gallons per minute. Operation and maintenance expenses are a separate measure used by management to evaluate performance of field operations. Direct labor, insurance, property taxes, repair and maintenance, utilities and contract services comprise the most significant portion of operation and maintenance expenses. These expenses fluctuate depending on the activities performed during a specific period. The Partnership does not deduct operation and maintenance expenses from total revenues in calculating segment margin because management separately evaluates commodity volume and price changes in segment margin. The Partnership does not record segment margin for the Joint Ventures segment because it records its ownership percentages of the net income of its unconsolidated affiliates as income from unconsolidated affiliates in accordance with the equity method of accounting.

Results for each period, together with amounts related to balance sheets for each segment, are shown below:

	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
External Revenues
Gathering and Processing	$	263,100		$	303,203		$	570,267		$	569,175
Joint Ventures	—			—			—			—
Contract Compression	36,237			38,072			73,438			76,508
Contract Treating	7,388			10,842			16,523			19,275
Corporate and Others	5,251			4,381			9,647			8,792
Eliminations	—			—			—			—
Total	$	311,976		$	356,498		$	669,875		$	673,750
Intersegment Revenues
Gathering and Processing	$	—		$	—		$	—		$	—
Joint Ventures	—			—			—			—
Contract Compression	4,432			2,917			8,561			9,470
Contract Treating	685			—			1,179			—
Corporate and Others	53			110			109			177
Eliminations	(5,170		)	(3,027		)	(9,849		)	(9,647		)
Total	$	—		$	—		$	—		$	—
Segment Margin
Gathering and Processing	$	79,416		$	50,495		$	150,751		$	104,295
Joint Ventures	—			—			—			—
Contract Compression	38,015			36,973			77,001			78,413
Contract Treating	7,241			7,701			15,124			14,952
Corporate and Others	5,497			4,762			10,145			9,815
Eliminations	(5,008		)	(2,908		)	(9,614		)	(9,461		)
Total	$	125,161		$	97,023		$	243,407		$	198,014
Operation and Maintenance
Gathering and Processing	$	28,791		$	19,528		$	57,014		$	42,470
Joint Ventures	—			—			—			—
Contract Compression	14,142			16,310			30,549			32,702
Contract Treating	822			675			1,666			1,409
Corporate and Others	245			397			358			442
Eliminations	(5,008		)	(2,914		)	(9,614		)	(9,467		)
Total	$	38,992		$	33,996		$	79,973		$	67,556

The table below provides a reconciliation of total segment margin to income before income taxes:

	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012				2011
Total segment margin	$	125,161		$	97,023		$	243,407			$	198,014
Operation and maintenance	(38,992		)	(33,996		)	(79,973		)		(67,556		)
General and administrative	(16,476		)	(17,551		)	(32,171		)		(36,660		)
Loss on asset sales, net	(1,548		)	(153		)	(1,584		)		(181		)
Depreciation and amortization	(45,132		)	(40,503		)	(96,638		)		(80,739		)
Income from unconsolidated affiliates	34,185			32,167			66,143				55,975
Interest expense, net	(27,934		)	(24,689		)	(57,491		)		(44,696		)
Loss on debt refinancing, net	(7,820		)	—			(7,820		)		—
Other income and deductions, net	7,921			2,641			24,443			*	5,055
Income before income taxes	$	29,365		$	14,939		$	58,316			$	29,212

__________________

* Other income and deductions, net for the six months ended June 30, 2012 included a one-time producer payment of $15.6 million related to an assignment of certain contracts.

The table below provides a listing of assets reflected in the consolidated balance sheet for each segment:

	June 30, 2012		December 31, 2011
Gathering and Processing	$	2,062,306	$	1,959,697
Joint Ventures	2,080,163		1,924,705
Contract Compression	1,405,989		1,405,600
Contract Treating	219,377		215,172
Corporate and Others	64,727		62,682
Total	$	5,832,562	$	5,567,856

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Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012		Jun. 30, 2011
REVENUES:
Gas sales, including related party	$ 64,042	$ 132,800	$ 144,937		$ 242,887
NGL sales including related party	120,984	138,088	280,263		256,339
Gathering, transportation and other fees, including related party	95,265	81,817	195,579		163,653
Net realized and unrealized gain (loss) from derivatives	14,987	(7,542)	13,803		(9,256)
Other, including related party	16,698	11,335	35,293		20,127
Total revenues	311,976	356,498	669,875		673,750
OPERATING COSTS AND EXPENSES:
Cost of sales, including related party	186,815	259,475	426,468		475,736
Operation and maintenance	38,992	33,996	79,973		67,556
General and administrative, including related party	16,476	17,551	32,171		36,660
Loss on asset sales, net	1,548	153	1,584		181
Depreciation and amortization	45,132	40,503	96,638		80,739
Total operating costs and expenses	288,963	351,678	636,834		660,872
OPERATING INCOME (LOSS):	23,013	4,820	33,041		12,878
Income from unconsolidated affiliates	34,185	32,167	66,143		55,975
Interest expense, net	(27,934)	(24,689)	(57,491)		(44,696)
Gains (Losses) on Extinguishment of Debt, net	(7,820)	0	(7,820)		0
Other income and deductions, net	7,921	2,641	24,443	[1]	5,055
INCOME BEFORE INCOME TAXES	29,365	14,939	58,316		29,212
Income tax expense	38	102	89		70
NET INCOME	29,327	14,837	58,227		29,142
Net income attributable to noncontrolling interest	(649)	(293)	(1,048)		(524)
NET INCOME ATTRIBUTABLE TO REGENCY ENERGY PARTNERS LP	28,678	14,544	57,179		28,618
Amounts attributable to Series A Preferred Units	2,120	1,995	5,117		3,988
General partner's interest, including IDRs	2,505	1,550	4,993		2,842
Limited partners' interest in net income	$ 24,053	$ 10,999	$ 47,069		$ 21,788
Basic and diluted net income per common unit:
Weighted average number of common units outstanding	170,107,060	142,937,163	164,398,548		140,135,219
Net income, per common unit	0.14	0.08	0.29		0.16
Diluted net income, per common unit	0.10	0.07	0.26		0.14
Distributions per common unit	$ 0.46	$ 0.45	$ 0.92		$ 0.895

[1] *Other income and deductions, net for the six months ended June 30, 2012 included a one-time producer payment of $15.6 million related to an assignment of certain contracts.

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Investment In Unconsolidated Affiliates

6 Months Ended

Jun. 30, 2012

Investment In Unconsolidated Subsidiaries [Abstract]

Investment In Unconsolidated Affiliates

Investment in Unconsolidated Affiliates

As of June 30, 2012, the Partnership has a 49.99% general partner interest in HPC, 50% membership interest in MEP, 30% membership interest in Lone Star, and 33.33% membership interest in Ranch JV. The carrying value of the Partnership's investment in each of the unconsolidated affiliates as of June 30, 2012 and December 31, 2011 is as follows:

	June 30, 2012		December 31, 2011
HPC	$	673,510	$	682,046
MEP	596,696		613,942
Lone Star	809,958		628,717
Ranch JV	22,339		—
	$	2,102,503	$	1,924,705

The following tables summarize the Partnership's investment activities in each of the unconsolidated affiliates for the three and six months endedJune 30, 2012 and 2011:

	Three Months Ended June 30, 2012
	HPC			MEP		Lone Star		Ranch JV
Contributions to unconsolidated affiliates	$	—		$	—	$	95,414	$	8,944
Distributions from unconsolidated affiliates	13,871			18,796		10,787		—
Share of unconsolidated affiliates' net income (loss)	13,108			10,189		12,366		(17		)
Amortization of excess fair value of investment	(1,461		)	—		—		—

	Three Months Ended June 30, 2011
	HPC			MEP		Lone Star(1)		Ranch JV
Contributions to unconsolidated affiliates	$	—		$	—	$	591,681	N/A
Distributions from unconsolidated affiliates	18,113			18,222		—		N/A
Share of unconsolidated affiliates' net income	15,130			10,110		8,388		N/A
Amortization of excess fair value of investment	(1,461		)	—		—		N/A

	Six Months Ended June 30, 2012
	HPC			MEP		Lone Star		Ranch JV
Contributions to unconsolidated affiliates	$	—		$	—	$	175,254	$	22,356
Distributions from unconsolidated affiliates	30,030			38,182		17,743		—
Share of unconsolidated affiliates' net income (loss)	24,417			20,936		23,730		(17		)
Amortization of excess fair value of investment	(2,923		)	—		—		—

	Six Months Ended June 30, 2011
	HPC			MEP		Lone Star(1)		Ranch JV
Contributions to unconsolidated affiliates	$	—		$	—	$	591,681	N/A
Distributions from unconsolidated affiliates	34,841			43,659		—		N/A
Share of unconsolidated affiliates' net income	30,205			20,305		8,388		N/A
Amortization of excess fair value of investment	(2,923		)	—		—		N/A

__________________

(1) For the period from initial contribution, May 2, 2011, to June 30, 2011.

N/A The Partnership acquired a 33.33% membership interest in Ranch JV in December 2011.

The following tables present selected income statement data for each of the unconsolidated affiliates, on a 100% basis, for the three and six months endedJune 30, 2012 and 2011:

	Three Months Ended June 30, 2012
	HPC		MEP		Lone Star		Ranch JV
Total revenues	$	46,324	$	64,969	$	157,591	$	130
Operating income (loss)	26,680		33,274		40,066		(27		)
Net income (loss)	26,222		20,377		41,220		(27		)
	Three Months Ended June 30, 2011
	HPC		MEP		Lone Star(1)		Ranch JV
Total revenues	$	48,585	$	64,943	$	98,820	N/A
Operating income	30,515		33,190		28,143		N/A
Net income	30,265		20,276		27,958		N/A

	Six Months Ended June 30, 2012
	HPC		MEP		Lone Star		Ranch JV
Total revenues	$	88,140	$	131,129	$	324,586	$	130
Operating income (loss)	49,649		67,663		78,620		(51		)
Net income (loss)	48,844		41,871		79,101		(51		)
	Six Months Ended June 30, 2011
	HPC		MEP		Lone Star(1)		Ranch JV
Total revenues	$	97,234	$	129,767	$	98,820	N/A
Operating income	60,842		66,455		28,143		N/A
Net income	60,421		40,686		27,958		N/A

__________________

(1) For the period from initial contribution, May 2, 2011, to June 30, 2011.

N/A The Partnership acquired a 33.33% membership interest in Ranch JV in December 2011.

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Income (Loss) Per Limited Partner Unit

6 Months Ended

Jun. 30, 2012

Earnings Per Share [Abstract]

Income (Loss) Per Limited Partner Unit

Income per Common Unit

The following tables provide a reconciliation of the numerator and denominator of the basic and diluted earnings per common unit computations for the three and six months ended June 30, 2012 and 2011:

	Three Months Ended June 30,
	2012						2011
	Income (Numerator)			Units (Denominator)	Per-Unit Amount		Income (Numerator)			Units (Denominator)	Per-Unit Amount
Basic income per unit
Limited Partners’ interest in net income	$	24,053		170,107,060	$	0.14	$	10,999		142,937,163	$	0.08
Effect of Dilutive Securities:
Common unit options	—			8,474			—			25,826
Phantom units *	—			288,644			—			237,747
Series A Preferred Units	(5,789		)	4,645,229			(955		)	4,614,250
Diluted income per unit	$	18,264		175,049,407	$	0.10	$	10,044		147,814,986	$	0.07

	Six Months Ended June 30,
	2012						2011
	Income (Numerator)			Units (Denominator)	Per-Unit Amount		Income (Numerator)			Units (Denominator)	Per-Unit Amount
Basic income per unit
Limited Partners’ interest in net income	$	47,069		164,398,548	$	0.29	$	21,788		140,135,219	$	0.16
Effect of Dilutive Securities:
Common unit options	—			15,033			—			28,403
Phantom units *	—			325,129			—			231,251
Series A Preferred Units	(3,288		)	4,645,229			(1,537		)	4,584,192
Diluted income per unit	$	43,781		169,383,939	$	0.26	$	20,251		144,979,065	$	0.14

__________________

* Amount assumes maximum conversion rate for market condition awards.

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Income (Loss) Per Limited Partner Unit (Tables)

6 Months Ended

Jun. 30, 2012

Earnings Per Share [Abstract]

Basic And Diluted Income (Loss) From Continuing Operations

The following tables provide a reconciliation of the numerator and denominator of the basic and diluted earnings per common unit computations for the three and six months ended June 30, 2012 and 2011:

	Three Months Ended June 30,
	2012						2011
	Income (Numerator)			Units (Denominator)	Per-Unit Amount		Income (Numerator)			Units (Denominator)	Per-Unit Amount
Basic income per unit
Limited Partners’ interest in net income	$	24,053		170,107,060	$	0.14	$	10,999		142,937,163	$	0.08
Effect of Dilutive Securities:
Common unit options	—			8,474			—			25,826
Phantom units *	—			288,644			—			237,747
Series A Preferred Units	(5,789		)	4,645,229			(955		)	4,614,250
Diluted income per unit	$	18,264		175,049,407	$	0.10	$	10,044		147,814,986	$	0.07

	Six Months Ended June 30,
	2012						2011
	Income (Numerator)			Units (Denominator)	Per-Unit Amount		Income (Numerator)			Units (Denominator)	Per-Unit Amount
Basic income per unit
Limited Partners’ interest in net income	$	47,069		164,398,548	$	0.29	$	21,788		140,135,219	$	0.16
Effect of Dilutive Securities:
Common unit options	—			15,033			—			28,403
Phantom units *	—			325,129			—			231,251
Series A Preferred Units	(3,288		)	4,645,229			(1,537		)	4,584,192
Diluted income per unit	$	43,781		169,383,939	$	0.26	$	20,251		144,979,065	$	0.14

__________________

* Amount assumes maximum conversion rate for market condition awards.

Weighted Average Outstanding Amount Of Securities

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Equity-Based Compensation

6 Months Ended

Jun. 30, 2012

Equity-Based Compensation [Abstract]

Equity-Based Compensation

Equity-Based Compensation

The Partnership’s LTIP for its employees, directors and consultants authorizes grants up to 5,865,584 common units. LTIP compensation expense of $1 million and $0.8 million, is recorded in general and administrative expense for the three months ended June 30, 2012 and 2011, respectively, and $2.3 million and $1.7 million for the six months ended June 30, 2012 and 2011, respectively.

Common Unit Options. There was no common unit option activity for the six months ended June 30, 2012. The aggregate intrinsic value and weighted average contractual term in years as of June 30, 2012 for the outstanding and exercisable common unit options was $0.3 million and 3.9 years, respectively. During the six months ended June 30, 2011, the Partnership received $0.7 million in proceeds from the exercise of unit options.

Phantom Units. All phantom units granted prior to November 2010 were in substance two grants composed of (1) service condition grants with graded vesting over three years and (2) market condition grants with cliff vesting based upon the Partnership’s relative ranking in total unitholder return among 20 peer companies. Distributions related to these unvested phantom units will be accrued and paid upon vesting. All phantom units granted after November 2010 were service condition grants only with graded vesting over five years. Distributions related to these unvested phantom units will be paid concurrent with the Partnership’s distribution for common units.

The following table presents phantom units activity for the six months ended June 30, 2012:

Phantom Units	Units		Weighted Average Grant Date Fair Value
Outstanding at beginning of period	1,086,393		$	24.51
Service condition grants	7,250		24.40
Vested service condition	(23,553	)	22.96
Vested market condition	(10,200	)	19.52
Forfeited service condition	(64,934	)	24.90
Forfeited market condition	(3,750	)	19.52
Outstanding at end of period	991,206		24.59

The Partnership expects to recognize $17.8 million of compensation expense related to non-vested phantom units over a period of 3.8 years.

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Commitments And Contingencies

6 Months Ended

Jun. 30, 2012

Commitments And Contingencies [Abstract]

Commitments and Contingencies Disclosure [Text Block]

Commitments and Contingencies

Legal. The Partnership is involved in various claims, lawsuits and audits by taxing authorities incidental to its business. These claims and lawsuits in the aggregate are not expected to have a material adverse effect on the Partnership’s business, financial condition, results of operations or cash flows.

Keyes Litigation. In August 2008, Keyes Helium Company, LLC (“Keyes”) filed suit against RGS, the Partnership, the General Partner and various other subsidiaries. Keyes entered into an output contract with the Partnership’s predecessor-in-interest in 1996 under which it purchased all of the helium produced at the Lakin, Kansas processing plant. In September 2004, the Partnership decided to shut down its Lakin plant and contract with a third party for the processing of volumes processed at Lakin; as a result, the Partnership no longer delivered any helium to Keyes. In its suit, Keyes alleges it is entitled to damages for the costs of covering its purchases of helium. On May 7, 2010, the jury rendered a verdict in favor of the Partnership. No damages were awarded to the Plaintiffs. Plaintiffs have appealed the verdict. The hearing on appeal took place on April 24, 2012. A decision is not expected for at least several months.

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Derivative Instruments

6 Months Ended

Jun. 30, 2012

Derivative Instruments [Abstract]

Derivative Instruments and Hedging Activities Disclosure [Text Block]

Derivative Instruments

Policies. The Partnership established comprehensive risk management policies and procedures to monitor and manage the market risks associated with commodity prices, counterparty credit and interest rates. The General Partner is responsible for delegation of transaction authority levels, and the Audit and Risk Committee of the General Partner is responsible for the oversight of these risks, including monitoring exposure limits. The Audit and Risk Committee receives regular briefings on exposures and overall risk management in the context of market activities.

Commodity Price Risk. The Partnership is a net seller of NGLs, condensate and natural gas as a result of its gathering and processing operations. The prices of these commodities are impacted by changes in the supply and demand as well as market forces. Both the Partnership's profitability and cash flow are affected by the inherent volatility of these commodities which could adversely affect its ability to make distributions to its unitholders. The Partnership manages this commodity price exposure through an integrated strategy that includes management of its contract portfolio, matching sales prices of commodities with purchases, optimization of its portfolio by monitoring basis and other price differentials in operating areas, and the use of derivative contracts. In some cases, the Partnership may not be able to match pricing terms or cover its risk to price exposure with financial hedges, and it may be exposed to commodity price risk. Speculative positions with derivative contracts are prohibited under the Partnership's policies.

The Partnership has swap contracts settled against NGLs (ethane, propane, butane, and natural gasoline), condensate and natural gas market prices. The Partnership also has put options to protect against falling ethane prices.

On January 1, 2012, the Partnership de-designated its swap contracts and began accounting for these contracts using the mark-to-market method of accounting. As of June 30, 2012, the Partnership has $1.1 million in net hedging gains in accumulated other comprehensive income which will be amortized to earnings over the next 1.75 years. Over the next 12 months, the Partnership will amortize $0.8 million in net hedging losses to income.

Interest Rate Risk. The Partnership is exposed to variable interest rate risk as a result of borrowings under its revolving credit facility. The Partnership's $250 million interest rate swaps expired in April 2012.

Credit Risk. The Partnership's resale of NGLs, condensate and natural gas exposes it to credit risk, as the margin on any sale is generally a very small percentage of the total sales price. Therefore, a credit loss can be very large relative to overall profitability on these transactions. The Partnership attempts to ensure that it issues credit only to credit-worthy counterparties and that in appropriate circumstances any such extension of credit is backed by adequate collateral, such as a letter of credit or parental guarantee from a parent company.

The Partnership is exposed to credit risk from its derivative counterparties. The Partnership does not require collateral from these counterparties. The Partnership deals primarily with financial institutions when entering into financial derivatives, and utilizes master netting agreements that allow for netting of swap contract receivables and payables in the event of default by either party. If the Partnership's counterparties fail to perform under existing swap contracts, the Partnership's maximum loss as of June 30, 2012 would be $16.2 million. The Partnership has elected to present assets and liabilities under master netting agreements gross on the condensed consolidated balance sheets.

Embedded Derivatives. The Series A Preferred Units contain embedded derivatives which are required to be bifurcated and accounted for separately, such as the holders' conversion option and the Partnership's call option. These embedded derivatives are accounted for using mark-to-market accounting. The Partnership does not expect the embedded derivatives to affect its cash flows.

The Partnership’s derivative assets and liabilities, including credit risk adjustments, as of June 30, 2012 and December 31, 2011 are detailed below:

	Assets				Liabilities
	June 30, 2012		December 31, 2011		June 30, 2012		December 31, 2011
Derivatives designated as cash flow hedges:
Current amounts
Commodity contracts	$	—	$	4,065	$	—	$	10,065
Long-term amounts
Commodity contracts	—		474		—		63
Total cash flow hedging instruments	—		4,539		—		10,128
Derivatives not designated as cash flow hedges:
Current amounts
Commodity contracts	12,838		—		113		—
Ethane put options	1,523		309		—		—
Interest rate swap contracts	—		—		—		470
Long-term amounts
Commodity contracts	1,872		—		—		—
Embedded derivatives in Series A Preferred Units	—		—		30,644		39,049
Total derivatives not designated as cash flow hedges	16,233		309		30,757		39,519
Total derivatives	$	16,233	$	4,848	$	30,757	$	49,647

The Partnership’s statements of operations and comprehensive income for the three and six months endedJune 30, 2012 and 2011 were impacted by derivative instruments activities as follows:

		Three Months Ended June 30,
		2012			2011
Derivatives in cash flow hedging relationships:		Change in Value Recognized in AOCI on Derivatives (Effective Portion)
Commodity derivatives		$	—		$	1,530
Derivatives in cash flow hedging relationships:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) Reclassified from AOCI into Income (Effective Portion)
Commodity derivatives	Revenues	$	—		$	(7,133	)
Derivatives in cash flow hedging relationships:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) Recognized in Income on Ineffective Portion
Commodity derivatives	Revenues	$	—		$	(362	)
Derivatives not designated in a hedging relationship:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) from Dedesignation Amortized from AOCI into Income
Commodity derivatives	Revenues	$	(2,159	)	$	—
Derivatives not designated in a hedging relationship:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) Recognized in Income on Derivatives
Commodity derivatives	Revenues	$	17,146		$	(47	)
Interest rate swap contracts	Interest expense, net	—			(228		)
Embedded derivatives in Series A Preferred Units	Other income &  deductions, net	7,909			2,950
		$	25,055		$	2,675

		Six Months Ended June 30,
		2012			2011
Derivatives in cash flow hedging relationships:		Change in Value Recognized in AOCI on Derivatives (Effective Portion)
Commodity derivatives		$	—		$	(15,466	)
Derivatives in cash flow hedging relationships:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) Reclassified from AOCI into Income (Effective Portion)
Commodity derivatives	Revenues	$	—		$	(8,994	)
Derivatives in cash flow hedging relationships:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) Recognized in Income on Ineffective Portion
Commodity derivatives	Revenues	$	—		$	(274	)
Derivatives not designated in a hedging relationship:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) from Dedesignation Amortized from AOCI into Income
Commodity derivatives	Revenues	$	(5,824	)	$	—
Derivatives not designated in a hedging relationship:	Location of Gain/(Loss) Recognized in Income	Amount of Gain/(Loss) Recognized in Income on Derivatives
Commodity derivatives	Revenues	$	19,627		$	12
Interest rate swap contracts	Interest expense, net	(12		)	(487		)
Embedded derivatives in Series A Preferred Units	Other income &  deductions, net	8,405			5,525
		$	28,020		$	5,050

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Long-Term Debt

6 Months Ended

Jun. 30, 2012

Long-Term Debt Disclosure [Abstract]

Long-Term Debt

Long-term Debt

Obligations in the form of senior notes and borrowings under the revolving credit facility are as follows:

	June 30, 2012			December 31, 2011
Senior notes	$	1,265,558		$	1,355,147
Revolving loans	515,000			332,000
Total	1,780,558			1,687,147
Less: current portion	—			—
Long-term debt	$	1,780,558		$	1,687,147
Availability under revolving credit facility:
Total credit facility limit	$	900,000		$	900,000
Revolving loans	(515,000		)	(332,000		)
Letters of credit	(9,000		)	(19,000		)
Total available	$	376,000		$	549,000

Scheduled maturities of long-term debt at June 30, 2012 are as follows:

Years Ending December 31,	Amount
2012 (remainder)	$	—
2013	—
2014	515,000
2015	—
2016	162,500
Thereafter	1,100,000
Total	$	1,777,500	*

__________________

* Excludes unamortized premiums of $3.1 million as of June 30, 2012.

Revolving Credit Facility. The weighted average interest rate on the total amounts outstanding under the Partnership's revolving credit facility was 2.88% and 2.77% as of June 30, 2012 and 2011, respectively.

Senior Notes. In May 2012, the Partnership exercised its option to redeem 35% or $87.5 million of its outstanding senior notes due 2016 at a price of 109.375% of the principal amount plus accrued interest.

At June 30, 2012, the Partnership was in compliance with all debt covenants.

Finance Corp., co-issuer for all of the Partnership’s senior notes, has no operations and will not have revenues other than as may be incidental. The senior notes due in years 2016, 2018 and 2021 are fully unconditional and jointly and severally guaranteed by all of the Partnership’s current consolidated subsidiaries, other than Finance Corp. and a minor subsidiary, and by certain of its future subsidiaries. The senior notes and the guarantees are unsecured and rank equally with all of the Partnership’s and the guarantors’ existing and future unsecured obligations. The senior notes and the guarantees will be senior in right of payment to any of the Partnership’s and the guarantors’ future obligations that are, by their terms, expressly subordinated in right of payment to the notes and the guarantees. The senior notes and the guarantees will be effectively subordinated to the Partnership’s and the guarantors’ secured obligations, including the Partnership’s revolving credit facility, to the extent of the value of the assets securing such obligations.

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Series A Convertible Redeemable Preferred Units

6 Months Ended

Jun. 30, 2012

Temporary Equity Disclosure [Abstract]

Series A Convertible Redeemable Preferred Units

Series A Preferred Units

On September 2, 2009, the Partnership issued 4,371,586 Series A Preferred Units. As of June 30, 2012, the Series A Preferred Units were convertible to 4,645,229 common units, and if outstanding, are mandatorily redeemable on September 2, 2029 for $80 million plus all accrued but unpaid distributions and interest thereon. The Series A Preferred Units receive fixed quarterly cash distributions of $0.445 per unit if outstanding on the record dates of the Partnership’s common unit distributions. Holders can elect to convert Series A Preferred Units to common units at any time in accordance with the partnership agreement.

The following table provides a reconciliation of the beginning and ending balances of the Series A Preferred Units for the six months ended June 30, 2012:

	Units	Amount
Outstanding at beginning of period	4,371,586	$	71,144
Accretion to redemption value	—	1,226
Outstanding at end of period	4,371,586	$	72,370	*

__________________

* This amount will be accreted to $80 million plus any accrued but unpaid distributions and interest by deducting amounts from partners’ capital over the remaining periods until the mandatory redemption date of September 2, 2029.

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Income (Loss) Per Limited Partner Unit (Basic And Diluted Income (Loss) From Continuing Operations) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2012		Jun. 30, 2011
Net income allocated to limited partners	$ 24,053		$ 10,999		$ 47,069		$ 21,788
Diluted income from continuing operations amount	18,264		10,044		43,781		20,251
Weighted average number of common units outstanding	170,107,060		142,937,163		164,398,548		140,135,219
Diluted weighted number of units outstanding	175,049,407		147,814,986		169,383,939		144,979,065
Net income, per common unit	0.14		0.08		0.29		0.16
Diluted net income, per common unit	0.10		0.07		0.26		0.14
Common Unit Options [Member]
Income allocated to dilutive securities	0		0		0		0
Dilutive securities (units)	8,474		25,826		15,033		28,403
Phantom Units [Member]
Income allocated to dilutive securities	0	[1]	0	[1]	0	[1]	0	[1]
Dilutive securities (units)	288,644	[1]	237,747	[1]	325,129	[1]	231,251	[1]
Series A Preferred Units [Member]
Income allocated to dilutive securities	$ (5,789)		$ (955)		$ (3,288)		$ (1,537)
Dilutive securities (units)	4,645,229		4,614,250		4,645,229		4,584,192

[1] *Amount assumes maximum conversion rate for market condition awards.

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Segment Information Schedule of Assets Related to Balance Sheet (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Total assets	$ 5,832,562	$ 5,567,856
Gathering And Processing [Member]
Segment Reporting Information [Line Items]
Total assets	2,062,306	1,959,697
Joint Venture [Member]
Segment Reporting Information [Line Items]
Total assets	2,080,163	1,924,705
Contract Compression [Member]
Segment Reporting Information [Line Items]
Total assets	1,405,989	1,405,600
Contract Treating [Member]
Segment Reporting Information [Line Items]
Total assets	219,377	215,172
Corporate and Others [Member]
Segment Reporting Information [Line Items]
Total assets	$ 64,727	$ 62,682

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Organization And Summary Of Significant Accounting Policies (Policy)

6 Months Ended

Jun. 30, 2012

Organization And Summary Of Significant Accounting Policies

Organization And Basis Of Presentation

Organization. The unaudited condensed consolidated financial statements presented herein contain the results of Regency Energy Partners LP and its subsidiaries ("Partnership"), a Delaware limited partnership. The Partnership and its subsidiaries are engaged in the business of gathering and processing, contract compression, treating and transportation of natural gas and the transportation, fractionation and storage of NGLs. Regency GP LP is the Partnership’s general partner and Regency GP LLC (collectively the “General Partner”) is the general partner of Regency GP LP.

Basis of Presentation. The unaudited financial information included in this Form 10-Q has been prepared on the same basis as the audited consolidated financial statements included in the Partnership’s Annual Report on Form 10-K for the year ended December 31, 2011. In the opinion of the Partnership’s management, such financial information reflects all adjustments necessary for a fair presentation of the financial position and the results of operations for such interim periods in accordance with GAAP. All intercompany items and transactions have been eliminated in consolidation. Certain information and footnote disclosures normally included in annual consolidated financial statements prepared in accordance with GAAP have been omitted pursuant to the rules and regulations of the SEC.

Use Of Estimates

Use of Estimates. The unaudited condensed consolidated financial statements have been prepared in conformity with GAAP, which includes the use of estimates and assumptions made by management that affect the reported amounts of assets, liabilities, revenues, expenses and disclosure of contingent assets and liabilities that exist at the date of the condensed consolidated financial statements. Although these estimates are based on management’s available knowledge of current and expected future events, actual results could be different from those estimates.

Property, Plant and Equipment, Policy [Policy Text Block]

Property, Plant and Equipment. In March 2012, the Partnership recorded a $6.9 million “out-of-period” adjustment to depreciation expense to correct the estimated useful lives of certain assets to comply with its policy. The adjustment to depreciation expense related to the year ended December 31, 2011 and the period from May 26, 2010 to December 31, 2010 was $4.4 million and $2.5 million, respectively. The adjustment to depreciation expense related to the three and six months ended June 30, 2011 was $1.1 million and $2.2 million, respectively.

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Long-Term Debt (Tables)

6 Months Ended

Jun. 30, 2012

Partnership's Long-Term Debt

Obligations in the form of senior notes and borrowings under the revolving credit facility are as follows:

	June 30, 2012			December 31, 2011
Senior notes	$	1,265,558		$	1,355,147
Revolving loans	515,000			332,000
Total	1,780,558			1,687,147
Less: current portion	—			—
Long-term debt	$	1,780,558		$	1,687,147
Availability under revolving credit facility:
Total credit facility limit	$	900,000		$	900,000
Revolving loans	(515,000		)	(332,000		)
Letters of credit	(9,000		)	(19,000		)
Total available	$	376,000		$	549,000

Long-Term Debt Maturities

Scheduled maturities of long-term debt at June 30, 2012 are as follows:

Years Ending December 31,	Amount
2012 (remainder)	$	—
2013	—
2014	515,000
2015	—
2016	162,500
Thereafter	1,100,000
Total	$	1,777,500	*

__________________

* Excludes unamortized premiums of $3.1 million as of June 30, 2012.

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Segment Information (Amounts Related To Balance Sheets For Each Segment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenue from external customers	$ 311,976	$ 356,498	$ 669,875	$ 673,750
Intersegment revenues	0	0	0	0
Segment margin	125,161	97,023	243,407	198,014
Operation and maintenance	38,992	33,996	79,973	67,556
Gathering And Processing [Member]
Revenue from external customers	263,100	303,203	570,267	569,175
Intersegment revenues	0	0	0	0
Segment margin	79,416	50,495	150,751	104,295
Operation and maintenance	28,791	19,528	57,014	42,470
Joint Venture [Member]
Revenue from external customers	0	0	0	0
Intersegment revenues	0	0	0	0
Segment margin	0	0	0	0
Operation and maintenance	0	0	0	0
Contract Compression [Member]
Revenue from external customers	36,237	38,072	73,438	76,508
Intersegment revenues	4,432	2,917	8,561	9,470
Segment margin	38,015	36,973	77,001	78,413
Operation and maintenance	14,142	16,310	30,549	32,702
Contract Treating [Member]
Revenue from external customers	7,388	10,842	16,523	19,275
Intersegment revenues	685	0	1,179	0
Segment margin	7,241	7,701	15,124	14,952
Operation and maintenance	822	675	1,666	1,409
Corporate and Others [Member]
Revenue from external customers	5,251	4,381	9,647	8,792
Intersegment revenues	53	110	109	177
Segment margin	5,497	4,762	10,145	9,815
Operation and maintenance	245	397	358	442
Eliminations [Member]
Revenue from external customers	0	0	0	0
Intersegment revenues	(5,170)	(3,027)	(9,849)	(9,647)
Segment margin	(5,008)	(2,908)	(9,614)	(9,461)
Operation and maintenance	$ (5,008)	$ (2,914)	$ (9,614)	$ (9,467)

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Derivative Instruments (Detail Effect Of Derivative Assets And Liabilities In Statement Of Operations) (Details) (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 in cash flow hedging relationship [Member] | Commodity derivatives [Member]
Change in value recognized in AOCI on derivatives (effective portion)	$ 0	$ 1,530	$ 0	$ (15,466)
Derivatives in cash flow hedging relationship [Member] | Commodity derivatives [Member] | Revenues [Member]
Amount of gain (loss) reclassified from AOCI into income (effective portion)	0	(7,133)	0	(8,994)
Amount of gain (loss) recognized in income on ineffective portion	0	(362)	0	(274)
Derivatives not designated in a hedging relationships [Member]
Derivative Instruments, Gain (Loss) Recognized in Income, Net	25,055	2,675	28,020	5,050
Derivatives not designated in a hedging relationships [Member] | Commodity derivatives [Member] | Revenues [Member]
Amount of gain (loss) from designation amortized from AOCI into income	(2,159)	0	(5,824)	0
Derivative Instruments, Gain (Loss) Recognized in Income, Net	17,146	(47)	19,627	12
Derivatives not designated in a hedging relationships [Member] | Interest rate swap contracts [Member] | Interest Expense, Net [Member]
Derivative Instruments, Gain (Loss) Recognized in Income, Net	0	(228)	(12)	(487)
Derivatives not designated in a hedging relationships [Member] | Embedded derivatives in Series A Preferred Units [Member] | Other Income and Deductions, Net [Member]
Derivative Instruments, Gain (Loss) Recognized in Income, Net	$ 7,909	$ 2,950	$ 8,405	$ 5,525

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Condensed Consolidated Statements Of Operations (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Gas sales, related party amounts	$ 3,801	$ 6,161	$ 9,281	$ 11,639
NGL sales, related party amounts	679	77,048	22,968	150,041
Gathering, transportation and other fees, related party amounts	7,349	5,254	14,000	11,470
Other revenues, related party amounts	0	2,924	1,478	4,790
Cost of sales, related party amounts	2,697	7,807	8,574	11,021
General and administrative, related party amounts	$ 4,300	$ 4,224	$ 8,600	$ 8,129

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Partners' Capital and Distributions

6 Months Ended

Jun. 30, 2012

Partners’ Capital and Distributions [Abstract]

Partners' Capital Notes Disclosure [Text Block]

Partners' Capital and Distributions

Equity Distribution Agreement. On June 19, 2012, the Partnership entered into an Equity Distribution Agreement with Citi under which the Partnership may offer and sell common units, representing limited partner interests, having an aggregate offering price of up to $200 million from time to time through Citi, as sales agent for the Partnership. Sales of these units, if any, made from time to time under the Equity Distribution Agreement will be made by means of ordinary brokers’ transactions on the New York Stock Exchange at market prices, in block transactions, or as otherwise agreed upon by the Partnership and Citi. Under the terms of this agreement, the Partnership may also sell common units to Citi as principal for its own account at a price agreed upon at the time of sale. Any sale of common units to Citi as principal would be pursuant to the terms of a separate agreement between the Partnership and Citi. The Partnership intends to use the net proceeds from the sale of these units for general partnership purposes. As of June 30, 2012, the Partnership has not issued any common units pursuant to this agreement.

Quarterly Distributions of Available Cash. Following are distributions declared by the Partnership subsequent to December 31, 2011:

Quarter Ended	Record Date	Payment Date	Cash Distributions (per common unit)
December 31, 2011	February 6, 2012	February 13, 2012	$0.46
March 31, 2012	May 7, 2012	May 14, 2012	$0.46
June 30, 2012	August 6, 2012	August 14, 2012	$0.46

Common Unit Offering. In March 2012, the Partnership issued 12,650,000 common units representing limited partner interests in a public offering at a price of $24.47 per common unit, resulting in net proceeds of $296.8 million. In May 2012, the Partnership used the net proceeds from this offering to redeem 35%, or $87.5 million, in aggregate principal amounts of its outstanding senior notes due 2016; pay related premium, expenses and accrued interest; and repay outstanding borrowings under the revolving credit facility.

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Series A Convertible Redeemable Preferred Units (Tables)

6 Months Ended

Jun. 30, 2012

Temporary Equity Disclosure [Abstract]

Beginning And Ending Balances Of The Series A Preferred Units

The following table provides a reconciliation of the beginning and ending balances of the Series A Preferred Units for the six months ended June 30, 2012:

	Units	Amount
Outstanding at beginning of period	4,371,586	$	71,144
Accretion to redemption value	—	1,226
Outstanding at end of period	4,371,586	$	72,370	*

__________________

* This amount will be accreted to $80 million plus any accrued but unpaid distributions and interest by deducting amounts from partners’ capital over the remaining periods until the mandatory redemption date of September 2, 2029.

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Investment In Unconsolidated Affiliates (Condensed Consolidated Income Statements) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011		Jun. 30, 2012	Jun. 30, 2011
HPC [Member]
Equity method investments, total revenues	$ 46,324	$ 48,585		$ 88,140	$ 97,234
Equity method investments, operating income (loss)	26,680	30,515		49,649	60,842
Equity method investments, net income (loss)	26,222	30,265		48,844	60,421
MEP [Member]
Equity method investments, total revenues	64,969	64,943		131,129	129,767
Equity method investments, operating income (loss)	33,274	33,190		67,663	66,455
Equity method investments, net income (loss)	20,377	20,276		41,871	40,686
Lone Star [Member]
Equity method investments, total revenues	157,591	98,820	[1]	324,586	98,820	[1]
Equity method investments, operating income (loss)	40,066	28,143	[1]	78,620	28,143	[1]
Equity method investments, net income (loss)	41,220	27,958	[1]	79,101	27,958	[1]
Ranch JV [Member]
Equity method investments, total revenues	130			130
Equity method investments, operating income (loss)	(27)			(51)
Equity method investments, net income (loss)	$ (27)			$ (51)

[1] (1) For the period from initial contribution, May 2, 2011, to June 30, 2011.

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Fair Value Measures

6 Months Ended

Jun. 30, 2012

Fair Value Measures [Abstract]

Fair Value Measures

Fair Value Measures

The Partnership's financial assets and liabilities measured at fair value on a recurring basis are derivatives related to interest rate swaps, commodity swaps, ethane put options and embedded derivatives in the Series A Preferred Units. Derivatives related to interest rate swaps, commodity swaps and ethane put options are valued using discounted cash flow techniques. These techniques incorporate Level 1 and Level 2 inputs such as future interest rates and commodity prices. These market inputs are utilized in the discounted cash flow calculation considering the instrument's term, notional amount, discount rate and credit risk and are classified as Level 2 in the hierarchy. Embedded derivatives related to Series A Preferred Units are valued using a binomial lattice model. The market inputs utilized in the model include credit spread, probabilities of the occurrence of certain events, common unit price, dividend yield, and expected volatility, and are classified as Level 3 in the hierarchy.

The following table presents the Partnership's derivative assets and liabilities measured at fair value on a recurring basis:

	Fair Value Measurements at June 30, 2012						Fair Value Measurements at December 31, 2011
	Fair Value Total		Significant Observable Inputs (Level 2)		Unobservable Inputs (Level 3)		Fair Value Total		Significant Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
Assets:
Commodity Derivatives:
Natural Gas	$	3,055	$	3,055	$	—	$	3,907	$	3,907	$	—
NGLs	7,681		7,681		—		94		94		—
Condensate	3,974		3,974		—		538		538		—
Ethane - Put Options	1,523		1,523		—		309		309		—
Total Assets	$	16,233	$	16,233	$	—	$	4,848	$	4,848	$	—
Liabilities:
Interest Rate Derivatives	$	—	$	—	$	—	$	470	$	470	$	—
Commodity Derivatives:
Natural Gas	113		113		—		—		—		—
NGLs	—		—		—		8,561		8,561		—
Condensate	—		—		—		1,567		1,567		—
Embedded Derivatives in Series A Preferred Units	30,644		—		30,644		39,049		—		39,049
Total Liabilities	$	30,757	$	113	$	30,644	$	49,647	$	10,598	$	39,049

The following table presents the material unobservable inputs used to estimate the fair value of the embedded derivatives in the Series A Preferred Units:

Unobservable Input	June 30, 2012
Credit Spread	6.83	%
Volatility	18.02	%

Changes in the Partnership's cost of equity and U.S. Treasury yields would cause a change in the credit spread used to value the embedded derivatives. Changes in the Partnership's historical unit price volatility would cause a change in the volatility used to value the embedded derivatives.

The following table presents the changes in Level 3 derivatives measured on a recurring basis for the six months ended June 30, 2012. There were no transfers between the fair value hierarchy levels for the six months ended June 30, 2012.

	Embedded Derivatives in Series A Preferred Units
Balance at December 31, 2011	$	39,049
Change in fair value	(8,405		)
Balance at June 30, 2012	$	30,644

The carrying amount of cash and cash equivalents, accounts receivable and accounts payable approximate fair value due to their short-term maturities. Long-term debt, other than the senior notes, is comprised of borrowings under which interest accrues under a floating interest rate structure. Accordingly, the carrying value approximates fair value.

The aggregate fair value and carrying amount of our senior notes at June 30, 2012 was $1.35 billion and $1.26 billion, respectively. As of December 31, 2011, the aggregate fair value and carrying amount of our senior notes was $1.44 billion and $1.35 billion, respectively. The fair value of our senior notes are a Level 1 valuation based on third party market value quotations.