10-Q

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-Q
(Mark One)
Q	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended September 30, 2011
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:  001-14273
CORE LABORATORIES N.V.
(Exact name of registrant as specified in its charter)
The Netherlands		Not Applicable
(State of other jurisdiction of		(I.R.S. Employer Identification No.)
incorporation or organization)
Herengracht 424
1017 BZ Amsterdam
The Netherlands		Not Applicable
(Address of principal executive offices)		(Zip Code)
(31-20) 420-3191
(Registrant's telephone number, including area code)
None
(Former name, former address and former fiscal year, if changed since last report)

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 Q  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 (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).   Yes Q  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 "smaller reporting company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer Q	Accelerated filer  o	Non-accelerated filer  o	Smaller reporting company  o
		(Do not check if a 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 Q

The number of common shares of the registrant, par value EUR 0.02 per share, outstanding at October 24, 2011 was 46,626,678.

CORE LABORATORIES N.V.
FORM 10-Q FOR THE QUARTER ENDED SEPTEMBER 30, 2011
INDEX
PART I - FINANCIAL INFORMATION
		Page
Item 1.	Financial Statements
	Consolidated Balance Sheets (Unaudited) at September 30, 2011 and December 31, 2010	1
	Consolidated Statements of Operations (Unaudited) for the Three Months Ended September 30, 2011 and 2010	2
	Consolidated Statements of Operations (Unaudited) for the Nine Months Ended September 30, 2011 and 2010	3
	Consolidated Statements of Cash Flows (Unaudited) for the Nine Months Ended September 30, 2011 and 2010	4
	Notes to the Unaudited Consolidated Interim Financial Statements	5
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	23
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	33
Item 4.	Controls and Procedures	33
PART II - OTHER INFORMATION
Item 1.	Legal Proceedings	34
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	34
Item 6.	Exhibits	35
	Signature	36

PART I - FINANCIAL INFORMATION

Item 1. Financial Statements

CORE LABORATORIES N.V.

CONSOLIDATED BALANCE SHEETS

(In thousands, except share and per share data)

	September 30, 2011			December 31, 2010
ASSETS	(Unaudited)
CURRENT ASSETS:
Cash and cash equivalents	$	17,021		$	133,880
Accounts receivable, net of allowance for doubtful accounts of $3,461 and   $3,396 at 2011 and 2010, respectively	157,594			154,726
Inventories	52,536			33,979
Prepaid expenses and other current assets	27,272			26,735
TOTAL CURRENT ASSETS	254,423			349,320
PROPERTY, PLANT AND EQUIPMENT, net	110,025			104,223
INTANGIBLES, net	7,969			8,660
GOODWILL	162,326			154,217
DEFERRED TAX ASSETS, net	6,586			—
OTHER ASSETS	21,572			19,622
TOTAL ASSETS	$	562,901		$	636,042
LIABILITIES AND EQUITY
CURRENT LIABILITIES:
Accounts payable	$	46,776		$	44,710
Accrued payroll and related costs	30,470			28,621
Taxes other than payroll and income	7,656			7,796
Unearned revenue	18,912			20,181
Income tax payable	10,250			21,004
Short-term debt and capital lease obligations	84,493			147,543
Other accrued expenses	11,562			9,498
TOTAL CURRENT LIABILITIES	210,119			279,353
LONG-TERM DEBT AND CAPITAL LEASE OBLIGATIONS	155,093			—
DEFERRED COMPENSATION	22,307			21,241
DEFERRED TAX LIABILITIES, net	—			2,198
OTHER LONG-TERM LIABILITIES	36,823			32,046
COMMITMENTS AND CONTINGENCIES (Note 6)
EQUITY COMPONENT OF SHORT-TERM DEBT – SENIOR EXCHANGEABLE NOTES	509			8,864
EQUITY:
Preference shares, EUR 0.02 par value; 6,000,000 shares authorized, none issued or outstanding	—			—
Common shares, EUR 0.02 par value; 200,000,000 shares authorized, 49,037,806 issued and 46,667,158 outstanding at 2011 and 49,739,912 issued and 45,521,186 outstanding at 2010	1,376			1,397
Additional paid-in capital	—			—
Retained earnings	296,172			536,991
Accumulated other comprehensive income (loss)	(5,979		)	(6,207		)
Treasury shares (at cost), 2,370,648 at 2011 and 4,218,726 at 2010	(157,187		)	(242,690		)
Total Core Laboratories N.V. shareholders' equity	134,382			289,491
Non-controlling interests	3,668			2,849
TOTAL EQUITY	138,050			292,340
TOTAL LIABILITIES AND EQUITY	$	562,901		$	636,042

The accompanying notes are an integral part of these consolidated financial statements.

1

CORE LABORATORIES N.V.

CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except per share data)

	Three Months Ended
	September 30,
	2011		2010
	(Unaudited)
REVENUE:
Services	$	172,770	$	151,671
Product sales	58,574		47,550
Total revenue	231,344		199,221
OPERATING EXPENSES:
Cost of services, exclusive of depreciation expense shown below	108,601		92,914
Cost of product sales, exclusive of depreciation expense shown below	41,711		32,858
General and administrative expenses, exclusive of depreciation expense shown below	11,182		8,416
Depreciation	5,460		5,496
Amortization	278		318
Other (income) expense, net	548		(998		)
OPERATING INCOME	63,564		60,217
Loss on exchange of Senior Exchangeable Notes	31		675
Interest expense	3,825		4,015
Income before income tax expense	59,708		55,527
Income tax expense	14,599		16,764
Net income	45,109		38,763
Net income (loss) attributable to non-controlling interests	242		209
Net income attributable to Core Laboratories N.V.	$	44,867	$	38,554
EARNINGS PER SHARE INFORMATION:
Basic earnings per share attributable to Core Laboratories N.V.	$	0.96	$	0.86
Diluted earnings per share attributable to Core Laboratories N.V.	$	0.93	$	0.79
Cash dividends per share	$	0.25	$	0.71
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
Basic	46,606		44,736
Diluted	48,030		48,955

The accompanying notes are an integral part of these consolidated financial statements.

2

CORE LABORATORIES N.V.

CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except per share data)

	Nine Months Ended
	September 30,
	2011			2010
	(Unaudited)
REVENUE:
Services	$	495,640		$	448,123
Product sales	168,222			138,337
Total revenue	663,862			586,460
OPERATING EXPENSES:
Cost of services, exclusive of depreciation expense shown below	321,334			284,682
Cost of product sales, exclusive of depreciation expense shown below	118,001			95,595
General and administrative expenses, exclusive of depreciation expense shown below	30,463			24,007
Depreciation	16,507			16,345
Amortization	867			989
Other (income) expense, net	(1,176		)	(508		)
OPERATING INCOME	177,866			165,350
Loss on exchange of Senior Exchangeable Notes	870			675
Interest expense	8,684			12,188
Income before income tax expense	168,312			152,487
Income tax expense	36,827			47,076
Net income	131,485			105,411
Net income (loss) attributable to non-controlling interests	(123		)	436
Net income attributable to Core Laboratories N.V.	$	131,608		$	104,975
EARNINGS PER SHARE INFORMATION:
Basic earnings per share attributable to Core Laboratories N.V.	$	2.87		$	2.35
Diluted earnings per share attributable to Core Laboratories N.V.	$	2.71		$	2.19
Cash dividends per share	$	0.75		$	0.83
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
Basic	45,930			44,741
Diluted	48,634			47,923

The accompanying notes are an integral part of these consolidated financial statements.

3

CORE LABORATORIES N.V.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

	Nine Months Ended
	September 30,
	2011			2010
	(Unaudited)
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	131,485		$	105,411
Adjustments to reconcile net income to net cash provided by operating activities:
Net (recovery) provision for doubtful accounts	(105		)	787
Provisions for inventory obsolescence	483			513
Equity in earnings of affiliates	(190		)	(342		)
Stock-based compensation	13,341			6,016
Depreciation and amortization	17,374			17,334
Non-cash interest expense	5,841			11,590
(Gain) loss on sale of assets	(416		)	(80		)
Gain on insurance recovery	(779		)	—
Loss on exchange of Senior Exchangeable Notes	870			675
Realization of pension obligation	228			257
(Increase) decrease in value of life insurance policies	(93		)	(575		)
Deferred income taxes	(9,928		)	(5,315		)
Changes in assets and liabilities:
Accounts receivable	707			(8,142		)
Inventories	(14,204		)	1,134
Prepaid expenses and other current assets	703			25,185
Other assets	1,692			(436		)
Accounts payable	1,370			5,500
Accrued expenses	(7,393		)	13,304
Other long-term liabilities	5,843			(3,687		)
Net cash provided by operating activities	146,829			169,129
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(18,203		)	(19,661		)
Patents and other intangibles	(177		)	(180		)
Business acquisitions, net of cash acquired	(21,000		)	(9,000		)
Proceeds from sale of assets	683			406
Proceeds from insurance recovery	884			—
Premiums on life insurance	(1,661		)	(1,357		)
Net cash used in investing activities	(39,474		)	(29,792		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of debt	(229,467		)	(24,366		)
Proceeds from debt	313,000			—
Stock options exercised	295			336
Excess tax benefits from stock-based compensation	2,315			798
Debt financing costs	(1,997		)	—
Settlement of warrants	(219,451		)	—
Non-controlling interests - contributions	1,193			156
Non-controlling interests - dividends	(251		)	(181		)
Dividends paid	(34,356		)	(37,095		)
Repurchase of common shares	(55,495		)	(92,077		)
Net cash used in financing activities	(224,214		)	(152,429		)
NET CHANGE IN CASH AND CASH EQUIVALENTS	(116,859		)	(13,092		)
CASH AND CASH EQUIVALENTS, beginning of period	133,880			181,045
CASH AND CASH EQUIVALENTS, end of period	$	17,021		$	167,953

The accompanying notes are an integral part of these consolidated financial statements.

4

CORE LABORATORIES N.V.

NOTES TO THE UNAUDITED CONSOLIDATED INTERIM FINANCIAL STATEMENTS

1.  BASIS OF PRESENTATION

The accompanying unaudited consolidated financial statements include the accounts of Core Laboratories N.V. and its subsidiaries for which we have a controlling voting interest and/or a controlling financial interest. These financial statements have been prepared in accordance with United States ("U.S.") generally accepted accounting principles ("GAAP") for interim financial information using the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, these financial statements do not include all of the information and footnote disclosures required by U.S. GAAP and should be read in conjunction with the financial statements and the summary of significant accounting policies and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2010.

Core Laboratories N.V. uses the equity method of accounting for investments in which it has less than a majority interest and over which it does not exercise control. Non-controlling interests have been recorded to reflect outside ownership attributable to consolidated subsidiaries that are less than 100% owned.  In the opinion of management, all adjustments considered necessary for the periods presented have been included in these financial statements.  Furthermore, the operating results presented for the three and nine months ended September 30, 2011 may not necessarily be indicative of the results that may be expected for the year ended December 31, 2011.

Core Laboratories N.V.'s balance sheet information for the year ended December 31, 2010 was derived from the 2010 audited consolidated financial statements but does not include all disclosures in accordance with U.S. GAAP.

Certain reclassifications were made to prior period amounts in order to conform to the current period presentation.  These reclassifications had no impact on the reported net income for the three and nine month periods ended September 30, 2011.

References to "Core Lab", "we", "our" and similar phrases are used throughout this Quarterly Report on Form 10-Q and relate collectively to Core Laboratories N.V. and its consolidated subsidiaries.

2.  INVENTORIES

Inventories consist of the following (in thousands):

	September 30, 2011		December 31, 2010
	(Unaudited)
Finished goods	$	32,650	$	24,476
Parts and materials	16,590		6,727
Work in progress	3,296		2,776
Total inventories	$	52,536	$	33,979

We include freight costs incurred for shipping inventory to customers in the Cost of Sales line of the Consolidated Statements of Operations.

3. GOODWILL AND INTANGIBLES

We account for intangible assets with indefinite lives, including goodwill, in accordance with the applicable accounting guidance, which requires us to evaluate these assets for impairment annually, or more frequently if an indication of impairment has occurred.  Based upon our most recent evaluation, we determined that goodwill is not impaired.  We amortize intangible assets with a defined term on a straight-line basis over their respective useful lives.

In September 2011, we acquired a business providing additional manufacturing capacity for our Canadian operations for $21 million in cash. We have accounted for this acquisition by allocating the purchase price to the net assets acquired based on their estimated fair values at the date of acquisition, resulting in an increase to goodwill of $8.1 million. The acquisition was recorded in the Production Enhancement business segment. The purchase price allocation is preliminary and based on information currently available to us, and is therefore subject to change when we obtain final asset and liability valuations.

5

In 2010, we acquired fracture diagnostics assets for $9 million in cash. The acquisition was recorded in the Production Enhancement business segment and resulted in an increase of $5.6 million in goodwill and an increase of $3.2 million in intangible assets.

4.  DEBT AND CAPITAL LEASE OBLIGATIONS

Debt is summarized in the following table (in thousands):

	September 30, 2011			December 31, 2010
	(Unaudited)
Senior exchangeable notes	$	84,940		$	156,407
Discount on senior exchangeable notes	(504		)	(8,864		)
Net senior exchangeable notes	84,436			147,543
Senior notes	150,000			—
Credit facility	5,000			—
Capital lease obligations	150			—
Total debt	239,586			147,543
Less - current maturities of long-term debt and capital lease obligations	84,493			147,543
Long-term debt and capital lease obligations, net	$	155,093		$	—

In 2006, Core Laboratories LP, an entity 100% indirectly owned by Core Laboratories N.V., issued $300 million aggregate principal amount of Senior Exchangeable Notes (the "Exchangeable Notes") which are fully and unconditionally guaranteed by Core Laboratories N.V. and mature on October 31, 2011.  The Exchangeable Notes bear interest at a rate of 0.25% per year paid on a semi-annual basis.

With the additional amortization of the discount on the Exchangeable Notes, the effective interest rate is 7.48% for the three and nine month period ended September 30, 2011, which resulted in additional non-cash interest expense of $1.5 million and $3.8 million for the three months ended September 30, 2011 and 2010, respectively, and $5.5 million and $11.5 million for the nine months ended September 30, 2011 and 2010, respectively.  Each Exchangeable Note carries a $1,000 principal amount and is exchangeable into shares of Core Laboratories N.V. common stock under certain circumstances at an exchange price of $45.41 per share, or 22.0221 shares per Exchangeable Note.  Upon exchange, holders will receive cash for the principal amount plus any amount related to fractional shares, and any excess exchange value will be delivered in whole shares of Core Laboratories N.V. common stock at the completion of the valuation period as defined under our Exchangeable Note Indenture agreement.  At September 30, 2011, the Exchangeable Notes were trading at 208% of their face value which is equivalent to $91.7 million of value in excess of the aggregate principal amount. At December 31, 2010, the Exchangeable Notes were trading at 197% of their face value which was equivalent to $151.7 million of value in excess of the aggregate principal amount.  There were 84,940 and 156,407 Exchangeable Notes outstanding at September 30, 2011 and December 31, 2010, respectively.

Under the terms of the Exchangeable Notes, defined criteria were met which allowed the Exchangeable Notes to be early exchanged during the third quarter of 2011, as it was during the second quarter of 2011, and as a result, the equity component of the Exchangeable Notes at September 30, 2011 was classified as temporary equity.  This balance combined with the debt amount reflects the amount that could result in cash settlement upon exchange.  We received eight requests to exchange 6,990 Exchangeable Notes which were settled during the third quarter for $7.0 million in cash and 89,316 shares of our common stock, all of which were treasury shares, resulting in a loss of $31 thousand.  We also received five requests during the third quarter to exchange 16,900 Exchangeable Notes which we will settle during the fourth quarter upon completion of the requisite holding period per the Note Indenture agreement.

In September 2011, we issued two series of senior notes with an aggregate principal amount of $150 million ("Senior Notes") in a private placement transaction. Series A consists of $75 million in aggregate principal amount of notes that bear interest at a fixed rate of 4.01% and are due in full on September 30, 2021. Series B consists of $75 million in aggregate principal amount of notes that bear interest at a fixed rate of 4.11% and are due in full on September 30, 2023. Interest on each series of the Senior Notes is payable semi-annually on March 30 and September 30.

6

On September 28, 2011, we entered into an agreement to amend our revolving credit facility (the "Credit Facility") that allowed for an aggregate borrowing capacity of $300 million at September 30, 2011. The Credit Facility also provided an option to increase the commitment under the Credit Facility to $350 million, if certain conditions were met.  The Credit Facility bears interest at variable rates from LIBOR plus 1.50% to a maximum of LIBOR plus 2.25%.  Any outstanding balance under the Credit Facility is due September 28, 2016 when the Credit Facility matures.   Interest payment terms are variable depending upon the specific type of borrowing under this facility. Our available capacity is reduced by outstanding letters of credit and performance guarantees and bonds totaling $15.6 million at September 30, 2011 relating to certain projects in progress.  Our available borrowing capacity under the Credit Facility at September 30, 2011 was $279.4 million.  As of September 30, 2011, we had $11.1 million of outstanding letters of credit and performance guarantees and bonds in addition to those under the Credit Facility.

The terms of the Credit Facility and the Senior Notes require us to meet certain financial and operational covenants. We believe that we were in compliance with all such covenants at September 30, 2011.  All of our material, wholly owned subsidiaries are guarantors or co-borrowers under the Credit Facility.

5.  PENSIONS AND OTHER POSTRETIREMENT BENEFITS

We provide a noncontributory defined benefit pension plan covering substantially all of our Dutch employees (the "Dutch Plan") who were hired prior to 2007 based on years of service and final pay or career average pay, depending on when the employee began participating. The benefits earned by the employees are immediately vested.  We fund the future obligations of the Dutch Plan by purchasing investment contracts from a large multi-national insurance company.  The investment contracts are purchased annually and expire after five years at which time they are replaced with new contracts that are adjusted to include changes in the benefit obligation for the current year and redemption of the expired contracts.  We determine the fair value of these plan assets with the assistance of an actuary using observable inputs (Level 2).  We make annual premium payments to the insurance company, based on each employee's age and current salary.

The following table summarizes the components of net periodic pension cost under this plan for the three and nine months ended September 30, 2011 and 2010 (in thousands):

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2011			2010			2011			2010
	(Unaudited)						(Unaudited)
Service cost	$	340		$	294		$	1,027		$	921
Interest cost	438			341			1,324			1,069
Expected return on plan assets	(204		)	(108		)	(616		)	(338		)
Amortization of transition asset	(21		)	(22		)	(65		)	(66		)
Amortization of prior service cost	39			40			119			120
Amortization of net loss	84			94			252			283
Net periodic pension cost	$	676		$	639		$	2,041		$	1,989

During the nine months ended September 30, 2011, we contributed approximately $1.9 million, as determined by the insurance company, to fund the estimated 2011 premiums on investment contracts held by the Dutch Plan.

We have adopted a non-qualified deferred compensation plan that allows certain highly compensated employees to defer a portion of their salary, commission and bonus, as well as the amount of any reductions in their deferrals under the deferred compensation plan for employees in the United States (the "Deferred Compensation Plan"), due to certain limitations imposed by the U.S. Internal Revenue Code of 1986, as amended (the "Internal Revenue Code").  The Deferred Compensation Plan also provides for employer contributions to be made on behalf of participants equal in amount to certain forfeitures of, and/or reductions in, employer contributions that participants could have received under the 401(k) Plan in the absence of certain limitations imposed by the Internal Revenue Code. Employer contributions to the Deferred Compensation Plan vest ratably over a period of five years. Contributions to the plan are invested in equity and other investment fund assets, and carried on the balance sheet at fair value.  A participant's plan benefits include the participant's deferrals, the vested portion of the employer's contributions, and deemed investment gains and losses on such amounts. The benefits under these contracts are fully vested and payment of benefits generally commences as of the last day of the month following the termination of services except that the payment of benefits for select executives generally commences on the first working day following a six month waiting period

7

following the date of termination.

On a recurring basis, we use the market approach to value certain assets and liabilities at fair value at quoted prices in an active market (Level 1) and certain assets and liabilities using significant other observable inputs (Level 2). We do not have any assets or liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3). Gains and losses related to the fair value changes in the deferred compensation assets and liabilities are recorded in General and Administrative Expenses in the Consolidated Statements of Operations.  The following table summarizes the fair value balances (in thousands):

(Unaudited)			Fair Value Measurement at
			September 30, 2011
	Total		Level 1		Level 2		Level 3
Assets:
Deferred compensation plan trust assets	$	8,789	$	—	$	8,789	$	—
Liabilities:
Deferred compensation plan	$	13,197	$	2,611	$	10,586	$	—

			Fair Value Measurement at
			December 31, 2010
	Total		Level 1		Level 2		Level 3
Assets:
Deferred compensation plan trust assets	$	8,802	$	—	$	8,802	$	—
Liabilities:
Deferred compensation plan	$	13,063	$	2,275	$	10,788	$	—

6. COMMITMENTS AND CONTINGENCIES

We have been and may from time to time be named as a defendant in legal actions that arise in the ordinary course of business.  These include, but are not limited to, employment-related claims and contractual disputes or claims for personal injury or property damage which occur in connection with the provision of our products and services.  Management does not currently believe that any of our pending contractual, employment-related, personal injury or property damage claims and disputes will have a material effect on our future results of operations, financial position or cash flow.

7.  EQUITY

During the three months ended September 30, 2011, we repurchased 30,798 of our common shares for $3.4 million. Included in this total were rights to 10,798 shares valued at $1.2 million that were surrendered to us pursuant to the terms of a stock-based compensation plan in consideration of the participants' tax burdens that may result from the issuance of common shares under that plan. During the nine months ended September 30, 2011, we repurchased 604,972 of our common shares for $55.5 million. Included in this total were rights to 40,478 shares valued at $4.1 million that were surrendered to us pursuant to the terms of a stock-based compensation plan in consideration of the participants' tax burdens that may result from the issuance of common shares under that plan. Such common shares, unless canceled, may be reissued for a variety of purposes such as future acquisitions, employee stock awards, exchange of the Exchangeable Notes, or settlement of outstanding warrants.

At the annual meeting of shareholders on May 19, 2011 the shareholders approved the cancellation of 702,106 shares of our common stock currently held as treasury stock at a cost of $40.9 million. These treasury shares were canceled on September 2, 2011, after the expiration of the waiting period required under Dutch law. In accordance with ASC 505-30-30-8, we charge the excess of the cost of the treasury stock over its par value to additional paid-in capital. If additional paid-in-capital is not sufficient for this charge, the remainder is charged directly to retained earnings.

In February, May, and August 2011, we paid a quarterly dividend of $0.25 per share of common stock.  In addition, on October 11, 2011, we declared a quarterly dividend of $0.25 per share of common stock for shareholders of record on October 21, 2011 and payable on November 22, 2011.

In 2006, we sold warrants on our common shares, which had an adjusted exercise price in the third quarter of $61.14 per

8

share, with an initial 20-day settlement period beginning in December 2011 through January 2012.  The warrant agreement called for the net value of these warrants to be settled with Core Laboratories N.V. common shares.  During 2011, the settlement of all of the warrants was accelerated through a series of agreements with the holder of the warrants. The warrants were settled in four substantially equal 20-day tranches during May, June, August and September of 2011. In each of the four tranches, the exercise price was adjusted based on the daily volume weighted average price of our common stock. These agreements also gave us the option of settling in either cash or our common stock. During the three months ended September 30, 2011, we settled 3.4 million warrants at an average exercise price of $59.79 for $153.7 million in cash and 37,959 shares of our treasury stock. During the nine months ended September 30, 2011, we settled 6.6 million warrants at an average exercise price of $59.84 for $219.5 million in cash and 706,395 shares of our treasury stock.

The following table summarizes our changes in equity for the nine months ended September 30, 2011 (in thousands):

	Common			Additional Paid-In			Retained			Accumulated Other Comprehensive			Treasury			Non- Controlling			Total
(Unaudited)	Shares			Capital			Earnings			Income (Loss)			Stock			Interests			Equity
December 31, 2010	$	1,397		$	—		$	536,991		$	(6,207	)	$	(242,690	)	$	2,849		$	292,340
Stock options exercised	—			(1,658		)	—			—			1,953			—			295
Stock based-awards	—			6,007			(744		)	—			8,078			—			13,341
Tax benefit of stock-based awards issued	—			2,315			—			—			—			—			2,315
Repurchase of common shares	—			—			—			—			(55,495		)	—			(55,495		)
Dividends paid	—			—			(34,356		)	—			—			—			(34,356		)
Cancellation of common shares	(21		)	—			(40,894		)	—			40,915			—			—
Equity component of short-term debt	—			8,355			—			—			—			—			8,355
Exchange of Senior Exchangeable Notes	—			(8,425		)	(40,394		)	—			46,870			—			(1,949		)
Settlement of warrants	—			(6,594		)	(256,039		)	—			43,182			—			(219,451		)
Non-controlling interests contribution	—			—			—			—			—			1,193			1,193
Non-controlling interests dividends	—			—			—			—			—			(251		)	(251		)
Comprehensive income:
Amortization of deferred pension costs, net of tax	—			—			—			228			—			—			228
Net income (loss)	—			—			131,608			—			—			(123		)	131,485
Total comprehensive income																			131,713
September 30, 2011	$	1,376		$	—		$	296,172		$	(5,979	)	$	(157,187	)	$	3,668		$	138,050

9

Comprehensive Income

The components of comprehensive income consisted of the following (in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2011		2010		2011		2010
	(Unaudited)				(Unaudited)
Net income	$	45,109	$	38,763	$	131,485	$	105,411
Amortization of deferred pension costs, net of tax	76		86		228		257
Total comprehensive income	$	45,185	$	38,849	$	131,713	$	105,668

Accumulated other comprehensive income (loss) consisted of the following (in thousands):

	September 30, 2011			December 31, 2010
	(Unaudited)
Prior service cost	$	(764	)	$	(853	)
Transition asset	276			324
Unrecognized net actuarial loss	(5,491		)	(5,678		)
Total accumulated other comprehensive income (loss)	$	(5,979	)	$	(6,207	)

8.  EARNINGS PER SHARE

We compute basic earnings per common share by dividing net income available to common shareholders by the weighted average number of common shares outstanding during the period. Diluted earnings per common and potential common shares include additional shares in the weighted average share calculations associated with the incremental effect of dilutive employee stock options, restricted stock awards and contingently issuable shares, as determined using the treasury stock method. The

following table summarizes the calculation of weighted average common shares outstanding used in the computation of diluted earnings per share (in thousands):

	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2011	2010	2011	2010
	(Unaudited)		(Unaudited)
Weighted average basic common shares outstanding	46,606	44,736	45,930	44,741
Effect of dilutive securities:
Stock options	12	55	20	58
Contingent shares	80	38	69	37
Restricted stock and other	249	591	266	564
Senior exchangeable notes	1,083	2,030	1,144	1,735
Warrants	—	1,505	1,205	788
Weighted average diluted common and potential common shares outstanding	48,030	48,955	48,634	47,923

Included in the table above are 0 and 1,505,000 shares which were added to the share count for the three months ended September 30, 2011 and 2010, respectively, and 1,205,000 and 788,000 shares which were added to the share count for the nine months ended September 30, 2011 and 2010, respectively, because the average share price exceeded the strike price of the warrants.  These shares were included in calculating the impact to our dilutive earnings per share for the three and nine months ended September 30, 2011 and 2010.

10

9. OTHER (INCOME) EXPENSE, NET

The components of other (income) expense, net, were as follows (in thousands):

	Three Months Ended							Nine Months Ended
	September 30,							September 30,
	2011				2010			2011			2010
	(Unaudited)							(Unaudited)
(Gain) loss on sale of assets	$	(278	)		$	(88	)	$	(416	)	$	(80	)
Foreign exchange (gain) loss	1,522				(547		)	1,001			1,074
Interest income	(11		)		—			(96		)	(142		)
Rents and royalties	(440		)		(352		)	(1,273		)	(1,052		)
(Gain) loss on insurance recovery	—				—			(779		)	—
Legal entity realignment	—			711	—			711			—
Other, net	(245		)		(11		)	(324		)	(308		)
Total other (income) expense, net	$	548			$	(998	)	$	(1,176	)	$	(508	)

During the third quarter of 2010, an office and laboratory facility was damaged by fire, resulting in the loss of the laboratory portion of the building, as well as some of the laboratory equipment.  The final settlement was reached in the first quarter of 2011, which resulted in a gain of $0.8 million.

Foreign exchange (gain) loss by currency are summarized in the following table (in thousands):

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2011			2010			2011			2010
	(Unaudited)						(Unaudited)
Australian Dollar	$	206		$	(213	)	$	62		$	(110	)
British Pound	177			(133		)	130			283
Canadian Dollar	1,146			(102		)	603			(338		)
Euro	151			76			126			1,665
Mexican Peso	(161		)	(22		)	(19		)	72
Russian Ruble	(195		)	(18		)	(414		)	(33		)
Other currencies, net	198			(135		)	513			(465		)
Total (gain) loss	$	1,522		$	(547	)	$	1,001		$	1,074

10.  INCOME TAX EXPENSE

The effective tax rates for the three months ended September 30, 2011 and 2010 were 24.5% and 30.2%, respectively.  The effective tax rates for year to date 2011 and 2010 were 21.9% and 30.9%, respectively. Included in income tax expense is the reversal in the nine months ended September 30, 2011 of $10.4 million in tax liabilities provided over the period of 2007-2010 as a result of recently concluded audits of prior year returns. The decrease in income tax expense also reflects the change in activity levels among jurisdictions with different tax rates.  

11.  SEGMENT REPORTING

We operate our business in three reportable segments:  (1) Reservoir Description, (2) Production Enhancement and (3) Reservoir Management.  These business segments provide different services and utilize different technologies.

• Reservoir Description: Encompasses the characterization of petroleum reservoir rock, fluid and gas samples. We provide analytical and field services to characterize properties of crude oil and petroleum products to the oil and gas industry.

• Production Enhancement: Includes products and services relating to reservoir well completions, perforations,

11

stimulations and production. We provide integrated services to evaluate the effectiveness of well completions and to develop solutions aimed at increasing the effectiveness of enhanced oil recovery projects.

• Reservoir Management: Combines and integrates information from reservoir description and production enhancement services to increase production and improve recovery of oil and gas from our clients' reservoirs.

Results for these business segments are presented below.  We use the same accounting policies to prepare our business segment results as are used to prepare our Consolidated Financial Statements.  We evaluate performance based on income or loss before income tax, interest and other non-operating income (expense). All interest and other non-operating income (expense) is attributable to the Corporate & Other area and is not allocated to specific business segments. Summarized financial information concerning our segments is shown in the following table (in thousands):

(Unaudited)	Reservoir Description		Production Enhancement		Reservoir Management		Corporate & Other 1			Consolidated
Three Months Ended September 30, 2011
Revenues from unaffiliated customers	$	119,853	$	97,407	$	14,084	$	—		$	231,344
Inter-segment revenues	446		232		377		(1,055		)	—
Segment operating income (loss)	28,780		30,728		3,502		554			63,564
Total assets	267,425		235,152		16,211		44,113			562,901
Capital expenditures	2,940		2,410		204		665			6,219
Depreciation and amortization	3,521		1,563		164		490			5,738
Three Months Ended September 30, 2010
Revenues from unaffiliated customers	$	106,485	$	78,992	$	13,744	$	—		$	199,221
Inter-segment revenues	441		390		319		(1,150		)	—
Segment operating income (loss)	28,014		26,260		5,535		408			60,217
Total assets	261,582		189,481		14,958		179,008			645,029
Capital expenditures	5,351		1,135		201		278			6,965
Depreciation and amortization	3,485		1,600		199		530			5,814
Nine Months Ended September 30, 2011
Revenues from unaffiliated customers	$	346,232	$	268,292	$	49,338	$	—		$	663,862
Inter-segment revenues	1,262		897		1,331		(3,490		)	—
Segment operating income (loss)	81,847		78,490		17,473		56			177,866
Total assets	267,425		235,152		16,211		44,113			562,901
Capital expenditures	10,322		5,713		595		1,573			18,203
Depreciation and amortization	10,520		4,780		513		1,561			17,374
Nine Months Ended September 30, 2010
Revenues from unaffiliated customers	$	317,106	$	227,553	$	41,801	$	—		$	586,460
Inter-segment revenues	989		1,103		1,034		(3,126		)	—
Segment operating income (loss)	78,229		73,355		14,827		(1,061		)	165,350
Total assets	261,582		189,481		14,958		179,008			645,029
Capital expenditures	15,280		2,527		458		1,396			19,661
Depreciation and amortization	10,515		4,849		523		1,447			17,334

(1) "Corporate & Other" represents those items that are not directly related to a particular segment and eliminations.

12. CONDENSED CONSOLIDATING FINANCIAL INFORMATION

Core Laboratories N.V. has fully and unconditionally guaranteed all of the Exchangeable Notes issued by Core Laboratories LP in 2006. Core Laboratories LP is an entity 100% indirectly owned by Core Laboratories N.V.

The following condensed consolidating financial information is included so that separate financial statements of Core Laboratories LP are not required to be filed with the U.S. Securities and Exchange Commission (the "SEC"). The condensed consolidating

12

financial statements present investments in both consolidated and unconsolidated affiliates using the equity method of accounting.

The following condensed consolidating financial information presents: balance sheets as of September 30, 2011 and December 31, 2010, statements of operations for each of the three and nine months ended September 30, 2011 and 2010 and the statements of cash flows for each of the nine months ended September 30, 2011 and 2010 of (a) Core Laboratories N.V., parent/guarantor, (b) Core Laboratories LP, issuer of public debt securities guaranteed by Core Laboratories N.V., (c) the non-guarantor subsidiaries, (d) consolidating adjustments necessary to consolidate Core Laboratories N.V. and its subsidiaries and (e) Core Laboratories N.V. on a consolidated basis.

13

Condensed Consolidating Balance Sheets (Unaudited)
(In thousands)	September 30, 2011
	Core Laboratories N.V. (Parent/ Guarantor)		Core Laboratories LP (Issuer)		Other Subsidiaries (Non- Guarantors)		Consolidating Adjustments			Consolidated Total
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	1,273	$	7,986	$	7,762	$	—		$	17,021
Accounts receivable, net	231		35,914		121,449		—			157,594
Inventories	—		5,461		47,075		—			52,536
Prepaid expenses and other current assets	7,966		5,413		13,893		—			27,272
Total current assets	9,470		54,774		190,179		—			254,423
PROPERTY, PLANT AND EQUIPMENT, net	—		21,014		89,011		—			110,025
GOODWILL AND INTANGIBLES, net	37,318		15,244		117,733		—			170,295
INTERCOMPANY RECEIVABLES	21,868		143,464		681,761		(847,093		)	—
INVESTMENT IN AFFILIATES	599,191		—		1,937,663		(2,535,970		)	884
DEFERRED TAX ASSETS, net	2,167		2,453		1,966		—			6,586
OTHER ASSETS	2,823		11,936		5,929		—			20,688
TOTAL ASSETS	$	672,837	$	248,885	$	3,024,242	$	(3,383,063	)	$	562,901
LIABILITIES AND EQUITY
CURRENT LIABILITIES:
Accounts payable	$	1,014	$	6,849	$	38,913	$	—		$	46,776
Short-term debt and lease obligations	—		84,436		57		—			84,493
Other accrued expenses	2,802		28,820		47,228		—			78,850
Total current liabilities	3,816		120,105		86,198		—			210,119
LONG-TERM DEBT & LEASE OBLIGATIONS	—		—		155,093		—			155,093
DEFERRED COMPENSATION	6,635		15,566		106		—			22,307
DEFERRED TAX LIABILITIES, net	—		—		—		—			—
INTERCOMPANY PAYABLES	518,544		65,908		262,641		(847,093		)	—
OTHER LONG-TERM LIABILITIES	9,460		2,954		24,409		—			36,823
Equity component of short-term debt -senior exchangeable notes	—		509		—		—			509
SHAREHOLDERS' EQUITY	134,382		43,843		2,492,127		(2,535,970		)	134,382
NON-CONTROLLING INTERESTS	—		—		3,668		—			3,668
TOTAL EQUITY	134,382		43,843		2,495,795		(2,535,970		)	138,050
TOTAL LIABILITIES AND EQUITY	$	672,837	$	248,885	$	3,024,242	$	(3,383,063	)	$	562,901

14

Condensed Consolidating Balance Sheets
(In thousands)	December 31, 2010
	Core Laboratories N.V. (Parent/ Guarantor)		Core Laboratories LP (Issuer)		Other Subsidiaries (Non- Guarantors)		Consolidating Adjustments			Consolidated Total
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	11,162	$	88,612	$	34,106	$	—		$	133,880
Accounts receivable, net	10		33,637		121,079		—			154,726
Inventories	—		4,127		29,852		—			33,979
Prepaid expenses and other current assets	5,641		9,437		11,657		—			26,735
	16,813		135,813		196,694		—			349,320
PROPERTY, PLANT AND EQUIPMENT, net	—		21,139		83,084		—			104,223
GOODWILL AND INTANGIBLES, net	46,986		15,838		100,053		—			162,877
INTERCOMPANY RECEIVABLES	21,749		164,945		242,754		(429,448		)	—
INVESTMENT IN AFFILIATES	553,693		—		1,567,416		(2,120,414		)	695
DEFERRED TAX ASSETS, net	2,810		—		6,436		(9,246		)	—
OTHER ASSETS	3,209		13,099		2,619		—			18,927
TOTAL ASSETS	$	645,260	$	350,834	$	2,199,056	$	(2,559,108	)	$	636,042
LIABILITIES AND EQUITY
CURRENT LIABILITIES:
Accounts payable	$	336	$	5,144	$	39,230	$	—		$	44,710
Short-term debt and lease obligations	—		147,543		—		—			147,543
Other accrued expenses	2,291		29,250		55,559		—			87,100
Total current liabilities	2,627		181,937		94,789		—			279,353
DEFERRED COMPENSATION	6,159		14,981		101		—			21,241
DEFERRED TAX LIABILITIES, net	—		11,444		—		(9,246		)	2,198
INTERCOMPANY PAYABLES	333,651		—		95,797		(429,448		)	—
OTHER LONG-TERM LIABILITIES	13,332		1,099		17,615		—			32,046
Equity component of short-term debt -senior exchangeable notes	—		8,864		—		—			8,864
SHAREHOLDERS' EQUITY	289,491		132,509		1,987,905		(2,120,414		)	289,491
NON-CONTROLLING INTERESTS	—		—		2,849		—			2,849
TOTAL EQUITY	289,491		132,509		1,990,754		(2,120,414		)	292,340
TOTAL LIABILITIES AND EQUITY	$	645,260	$	350,834	$	2,199,056	$	(2,559,108	)	$	636,042

15

Condensed Consolidating Statements of Operations (Unaudited)
(In thousands)	Three Months Ended September 30, 2011
	Core Laboratories N.V. (Parent/ Guarantor)			Core Laboratories LP (Issuer)		Other Subsidiaries (Non- Guarantors)		Consolidating Adjustments			Consolidated Total
REVENUE
Operating revenue	$	—		$	55,777	$	175,567	$	—		$	231,344
Intercompany revenue	486			6,091		37,676		(44,253		)	—
Earnings (loss) from consolidated affiliates	42,418			—		521,367		(563,785		)	—
Total revenue	42,904			61,868		734,610		(608,038		)	231,344
OPERATING EXPENSES
Operating costs	421			28,501		121,390		—			150,312
General and administrative expenses	1,451			9,706		25		—			11,182
Depreciation and amortization	—			1,550		4,188		—			5,738
Other (income) expense, net	(1,088		)	2,972		32,603		(33,939		)	548
Operating income	42,120			19,139		576,404		(574,099		)	63,564
Loss on exchange of Senior Exchangeable Notes	—			31		—		—			31
Interest expense	—			12,062		—		(8,237		)	3,825
Income (loss) before income tax expense	42,120			7,046		576,404		(565,862		)	59,708
Income tax (benefit) expense	(2,747		)	5,817		11,529		—			14,599
Net income	44,867			1,229		564,875		(565,862		)	45,109
Net income (loss) attributable to non-controlling interest	—			—		242		—			242
Net income (loss) attributable to Core Laboratories	$	44,867		$	1,229	$	564,633	$	(565,862	)	$	44,867

16

Condensed Consolidating Statements of Operations (Unaudited)
(In thousands)	Nine Months Ended September 30, 2011
	Core Laboratories N.V. (Parent/ Guarantor)			Core Laboratories LP (Issuer)			Other Subsidiaries (Non- Guarantors)			Consolidating Adjustments			Consolidated Total
REVENUE
Operating revenue	$	—		$	156,512		$	507,350		$	—		$	663,862
Intercompany revenue	1,255			17,786			108,570			(127,611		)	—
Earnings (loss) from consolidated affiliates	129,126			—			592,170			(721,296		)	—
Total revenue	130,381			174,298			1,208,090			(848,907		)	663,862
OPERATING EXPENSES
Operating costs	979			80,498			357,858			—			439,335
General and administrative expenses	6,066			24,360			37			—			30,463
Depreciation and amortization	—			4,779			12,595			—			17,374
Other (income) expense, net	(145		)	9,581			88,945			(99,557		)	(1,176		)
Operating income	123,481			55,080			748,655			(749,350		)	177,866
Loss on exchange of Senior Exchangeable Notes	—			870			—			—			870
Interest expense	—			95,071			—			(86,387		)	8,684
Income (loss) before income tax expense	123,481			(40,861		)	748,655			(662,963		)	168,312
Income tax (benefit) expense	(8,127		)	16,808			28,146			—			36,827
Net income	131,608			(57,669		)	720,509			(662,963		)	131,485
Net income (loss) attributable to non-controlling interest	—			—			(123		)	—			(123		)
Net income (loss) attributable to Core Laboratories	$	131,608		$	(57,669	)	$	720,632		$	(662,963	)	$	131,608

17

Condensed Consolidating Statements of Cash Flows (Unaudited)
(In thousands)	Nine Months Ended September 30, 2011
	Core Laboratories N.V. (Parent/ Guarantor)			Core Laboratories LP (Issuer)			Other Subsidiaries (Non- Guarantors)			Consolidating Adjustments		Consolidated Total
Net cash provided by (used in) operating activities	$	296,803		$	(2,406	)	$	(147,568	)	$	—	$	146,829
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	—			(4,087		)	(14,116		)	—		(18,203		)
Patents and other intangibles	—			(23		)	(154		)	—		(177		)
Business acquisitions, net of cash acquired	—			—			(21,000		)	—		(21,000		)
Proceeds from sale of assets	—			112			571			—		683
Proceeds from insurance recovery	—			—			884			—		884
Premiums on life insurance	—			(1,661		)	—			—		(1,661		)
Net cash used in investing activities	—			(5,659		)	(33,815		)	—		(39,474		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of debt	—			(71,467		)	(158,000		)	—		(229,467		)
Proceeds from debt	—			—			313,000			—		313,000
Stock options exercised	295			—			—			—		295
Excess tax benefits from stock-based compensation	2,315			—			—			—		2,315
Debt financing costs	—			(1,094		)	(903		)	—		(1,997		)
Settlement of warrants	(219,451		)	—			—			—		(219,451		)
Non-controlling interests - contributions	—			—			1,193			—		1,193
Non-controlling interests - dividends	—			—			(251		)	—		(251		)
Dividends paid	(34,356		)	—			—			—		(34,356		)
Repurchase of common shares	(55,495		)	—			—			—		(55,495		)
Net cash provided by (used in) financing activities	(306,692		)	(72,561		)	155,039			—		(224,214		)
NET CHANGE IN CASH AND CASH EQUIVALENTS	(9,889		)	(80,626		)	(26,344		)	—		(116,859		)
CASH AND CASH EQUIVALENTS, beginning of period	11,162			88,612			34,106			—		133,880
CASH AND CASH EQUIVALENTS, end of period	$	1,273		$	7,986		$	7,762		$	—	$	17,021

18

Condensed Consolidating Statements of Operations (Unaudited)
(In thousands)	Three Months Ended September 30, 2010
	Core Laboratories N.V. (Parent/ Guarantor)		Core Laboratories LP (Issuer)			Other Subsidiaries (Non- Guarantors)		Consolidating Adjustments			Consolidated Total
REVENUE
Operating revenue	$	—	$	48,856		$	150,365	$	—		$	199,221
Intercompany revenue	356		6,230			37,948		(44,534		)	—
Earnings from consolidated affiliates	42,764		—			69,553		(112,317		)	—
Total revenue	43,120		55,086			257,866		(156,851		)	199,221
OPERATING EXPENSES
Operating costs	346		24,928			100,498		—			125,772
General and administrative expenses	1,416		6,997			3		—			8,416
Depreciation and amortization	—		1,610			4,204		—			5,814
Other (income) expense, net	1,178		3,850			26,265		(32,291		)	(998		)
Operating income	40,180		17,701			126,896		(124,560		)	60,217
Loss on exchange of Senior Exchangeable Notes	—		675			—		—			675
Interest expense	—		24,008			3		(19,996		)	4,015
Income before income tax expense	40,180		(6,982		)	126,893		(104,564		)	55,527
Income tax (benefit) expense	1,626		10,463			4,675		—			16,764
Net income	38,554		(17,445		)	122,218		(104,564		)	38,763
Net income attributable to non-controlling interests	—		—			209		—			209
Net income attributable to Core Laboratories	$	38,554	$	(17,445	)	$	122,009	$	(104,564	)	$	38,554

19

Condensed Consolidating Statements of Operations (Unaudited)
(In thousands)	Nine Months Ended September 30, 2010
	Core Laboratories N.V. (Parent/ Guarantor)		Core Laboratories LP (Issuer)			Other Subsidiaries (Non- Guarantors)		Consolidating Adjustments			Consolidated Total
REVENUE
Operating revenue	$	—	$	142,403		$	444,057	$	—		$	586,460
Intercompany revenue	1,023		18,436			108,908		(128,367		)	—
Earnings from consolidated affiliates	115,662		—			286,057		(401,719		)	—
Total revenue	116,685		160,839			839,022		(530,086		)	586,460
OPERATING EXPENSES
Operating costs	1,058		75,149			304,070		—			380,277
General and administrative expenses	5,730		18,267			10		—			24,007
Depreciation and amortization	—		4,722			12,612		—			17,334
Other (income) expense, net	2,035		8,852			84,457		(95,852		)	(508		)
Operating income	107,862		53,849			437,873		(434,234		)	165,350
Loss on exchange of Senior Exchangeable Notes	—		675			—		—			675
Interest expense	—		32,175			9		(19,996		)	12,188
Income before income tax expense	107,862		20,999			437,864		(414,238		)	152,487
Income tax (benefit) expense	2,887		21,937			22,252		—			47,076
Net income	104,975		(938		)	415,612		(414,238		)	105,411
Net income attributable to non-controlling interests	—		—			436		—			436
Net income attributable to Core Laboratories	$	104,975	$	(938	)	$	415,176	$	(414,238	)	$	104,975

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Condensed Consolidating Statements of Cash Flows (Unaudited)
(In thousands)	Nine Months Ended September 30, 2010
	Core Laboratories N.V. (Parent/ Guarantor)			Core Laboratories LP (Issuer)			Other Subsidiaries (Non- Guarantors)			Consolidating Adjustments		Consolidated Total
Net cash provided by operating activities	$	63,267		$	87,595		$	18,267		$	—	$	169,129
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	—			(2,899		)	(16,762		)	—		(19,661		)
Patents and other intangibles	—			(3		)	(177		)	—		(180		)
Business acquisitions, net of cash acquired	—			(9,000		)	—			—		(9,000		)
Proceeds from sale of assets	—			11			395			—		406
Premiums on life insurance	—			(1,357		)	—			—		(1,357		)
Net cash used in investing activities	—			(13,248		)	(16,544		)	—		(29,792		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of debt	—			(24,366		)	—			—		(24,366		)
Stock options exercised	336			—			—			—		336
Excess tax benefit from stock-based payments	798			—			—			—		798
Non-controlling interests - contributions	—			—			156			—		156
Non-controlling interests - dividends	—			—			(181		)	—		(181		)
Dividends paid	(37,095		)	—			—			—		(37,095		)
Repurchase of common shares	(92,077		)	—			—			—		(92,077		)
Net cash used in financing activities	(128,038		)	(24,366		)	(25		)	—		(152,429		)
NET CHANGE IN CASH AND CASH EQUIVALENTS	(64,771		)	49,981			1,698			—		(13,092		)
CASH AND CASH EQUIVALENTS, beginning of period	73,998			95,048			11,999			—		181,045
CASH AND CASH EQUIVALENTS, end of period	$	9,227		$	145,029		$	13,697		$	—	$	167,953

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13. RECENT ACCOUNTING PRONOUNCEMENTS

In May 2011, the FASB issued ASU 2011-04 which relates to fair value measurement (FASB ASC Topic 820), which amends current guidance to achieve common fair value measurement and disclosure requirements in U.S. GAAP and International Financial Reporting Standards. The amendments generally represent clarification of FASB ASC Topic 820, but also include instances where a particular principle or requirement for measuring fair value or disclosing information about fair value measurements has changed. This pronouncement is effective for fiscal years, and interim periods within those years, beginning after December 15, 2011. We will adopt this pronouncement for our fiscal year beginning January 1, 2012. We do not expect this pronouncement to have a material effect on our consolidated financial statements.

In June 2011, the FASB issued ASU 2011-05 which provides new guidance on the presentation of comprehensive income (FASB ASC Topic 220) in financial statements. Entities are required to present total comprehensive income either in a single, continuous statement of comprehensive income or in two separate, but consecutive, statements. Under the single-statement approach, entities must include the components of net income, a total for net income, the components of other comprehensive income and a total for comprehensive income. Under the two-statement approach, entities must report an income statement and, immediately following, a statement of other comprehensive income. Under either method, entities must display adjustments for items reclassified from other comprehensive income to net income in both net income and other comprehensive income. The provisions for this pronouncement are effective for fiscal years, and interim periods within those years, beginning after December 15, 2011, with early adoption permitted. We will adopt this pronouncement for our fiscal year beginning January 1, 2012.

In September 2011, the FASB issued ASU 2011-08 which relates to testing goodwill for impairment (FASB ASC Topic 350), which amends current guidance to simplify how entities test goodwill for impairment. The amendments permit an entity to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test described in Topic 350. Under this amendment, an entity is not required to calculate the fair value of a reporting unit unless the entity determines that it is more likely than not that its fair value is less than its carrying amount. This pronouncement is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. We will adopt this pronouncement for our fiscal year beginning January 1, 2012. We do not expect this pronouncement to have a material effect on our consolidated financial statements.

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

The following discussion summarizes the financial position of Core Laboratories N.V. and its subsidiaries as of September 30, 2011 and should be read in conjunction with (i) the unaudited consolidated interim financial statements and notes thereto included elsewhere in this Quarterly Report on Form 10-Q and (ii) the consolidated financial statements and accompanying notes to our Annual Report on Form 10-K for the fiscal year ended December 31, 2010.

General

Core Laboratories N.V. is a Netherlands limited liability company.  It was established in 1936 and is one of the world's leading providers of proprietary and patented reservoir description, production enhancement and reservoir management products and services to the oil and gas industry.  These products and services can enable our clients to improve reservoir performance and increase oil and gas recovery from their producing fields.  Core Laboratories N.V. has over 70 offices in more than 50 countries and employs approximately 5,000 people worldwide.

References to "Core Lab", "we", "our" and similar phrases are used throughout this Quarterly Report on Form 10-Q and relate collectively to Core Laboratories N.V. and its consolidated affiliates.

Our business units have been aggregated into three complementary segments, which provide products and services for improving reservoir performance and increasing oil and gas recovery from new and existing fields.

• Reservoir Description: Encompasses the characterization of petroleum reservoir rock, fluid and gas samples. We provide analytical and field services to characterize properties of crude oil and petroleum products to the oil and gas industry.

• Production Enhancement: Includes products and services relating to reservoir well completions, perforations, stimulations and production. We provide integrated services to evaluate the effectiveness of well completions and to develop solutions aimed at increasing the effectiveness of enhanced oil recovery projects.

• Reservoir Management: Combines and integrates information from reservoir description and production enhancement services to increase production and improve recovery of oil and gas from our clients' reservoirs.

Cautionary Statement Regarding Forward-Looking Statements

This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Certain statements contained in this Management's Discussion and Analysis of Financial Condition and Results of Operations section, including those under the headings "Outlook" and "Liquidity and Capital Resources", and in other parts of this Form 10-Q, are forward-looking. In addition, from time to time, we may publish forward-looking statements relating to such matters as anticipated financial performance, business prospects, technological developments, new products, research and development activities and similar matters. Forward-looking statements can be identified by the use of forward-looking terminology such as "may", "will", "believe", "expect", "anticipate", "estimate", "continue", or other similar words, including statements as to the intent, belief, or current expectations of our directors, officers, and management with respect to our future operations, performance, or positions or which contain other forward-looking information. These forward-looking statements are based on our current expectations and beliefs concerning future developments and their potential effect on us. While management believes that these forward-looking statements are reasonable as and when made, no assurances can be given that the future results indicated, whether expressed or implied, will be achieved. While we believe that these statements are and will be accurate, our actual results and experience may differ materially from the anticipated results or other expectations expressed in our statements due to a variety of risks and uncertainties.

The oil and gas industry is highly cyclical and demand for the majority of our oilfield products and services is substantially dependent on the level of expenditures by the oil and gas industry for the exploration, development and production of crude oil and natural gas reserves, which are sensitive to oil and natural gas prices and generally dependent on the industry's view of future oil and gas prices. There are numerous factors affecting the supply of and demand for our products and services, which are summarized as:

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•general and economic business conditions;

•market prices of oil and gas and expectations about future prices;

•cost of producing oil and natural gas;

•the level of drilling and production activity;

•mergers, consolidations and downsizing among our clients;

•coordination by OPEC;

•the impact of commodity prices on the expenditure levels of our clients;

•financial condition of our client base and their ability to fund capital expenditures;

•the physical effects of climatic change, including adverse weather or geologic/geophysical conditions;

• the adoption of legal requirements or taxation relating to climate change that lower the demand for petroleum-based fuels;

•civil unrest or political uncertainty in oil producing or consuming countries;

•level of consumption of oil, gas and petrochemicals by consumers;

•changes in existing laws, regulations, or other governmental actions;

•the business opportunities (or lack thereof) that may be presented to and pursued by us;

•availability of services and materials for our clients to grow their capital expenditures; and

•availability of materials and equipment from key suppliers.

Should one or more of these risks or uncertainties materialize, or should any of our assumptions prove incorrect, actual results may vary in material respects from those projected in the forward-looking statements. We undertake no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. For a more detailed discussion of some of the foregoing risks and uncertainties, see "Item 1A - Risk Factors" in our Annual Report on Form 10-K for the fiscal year ended December 31, 2010, as well as the other reports filed by us with the Securities and Exchange Commission (“SEC”).

Outlook

We continue our efforts to expand our market presence by opening or expanding facilities in strategic areas and realizing synergies within our business lines.  We believe our market presence provides us a unique opportunity to service clients who have global operations in addition to the national oil companies.

We have established internal earnings targets that are based on market conditions existing at the time our targets were established.  Based on recent activity levels, we believe that the current level of activities, workflows, and operating margins both outside North America and within North America will grow moderately during the remainder of 2011.

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Results of Operations

Our results of operations as a percentage of applicable revenue were as follows (in thousands):

(Unaudited)	Three Months Ended September 30,									% Change
	2011				2010					2011/2010
REVENUE:
Services	$	172,770	75	%	$	151,671		76	%	14	%
Product sales	58,574		25	%	47,550			24	%	23	%
Total revenue	231,344		100	%	199,221			100	%	16	%
OPERATING EXPENSES:
Cost of services*	108,601		63	%	92,914			61	%	17	%
Cost of product sales*	41,711		71	%	32,858			69	%	27	%
Total cost of services and product sales	150,312		65	%	125,772			63	%	20	%
General and administrative expenses	11,182		5	%	8,416			4	%	33	%
Depreciation and amortization	5,738		2	%	5,814			3	%	(1	)%
Other (income) expense, net	548		—	%	(998		)	(1	)%	(155	)%
Operating income	63,564		27	%	60,217			30	%	6	%
Loss on exchange of Senior Exchangeable Notes	31		—	%	675			—	%	(95	)%
Interest expense	3,825		2	%	4,015			2	%	(5	)%
Income before income tax expense	59,708		26	%	55,527			28	%	8	%
Income tax expense	14,599		6	%	16,764			8	%	(13	)%
Net income	45,109		19	%	38,763			19	%	16	%
Net income (loss) attributable to non-controlling interests	242		—	%	209			—	%	16	%
Net income attributable to Core Laboratories N.V.	$	44,867	19	%	$	38,554		19	%	16	%
* Percentage based on applicable revenue rather than total revenue

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(Unaudited)	Nine Months Ended September 30,										% Change
	2011					2010					2011/2010
REVENUE:
Services	$	495,640		75	%	$	448,123		76	%	11	%
Product sales	168,222			25	%	138,337			24	%	22	%
Total revenue	663,862			100	%	586,460			100	%	13	%
OPERATING EXPENSES:
Cost of services*	321,334			65	%	284,682			64	%	13	%
Cost of product sales*	118,001			70	%	95,595			69	%	23	%
Total cost of services and product sales	439,335			66	%	380,277			65	%	16	%
General and administrative expenses	30,463			5	%	24,007			4	%	27	%
Depreciation and amortization	17,374			3	%	17,334			3	%	—	%
Other (income), net	(1,176		)	—	%	(508		)	—	%	131	%
Operating income	177,866			27	%	165,350			28	%	8	%
Loss on exchange of Senior Exchangeable Notes	870			—	%	675			—	%	29	%
Interest expense	8,684			1	%	12,188			2	%	(29	)%
Income before income tax expense	168,312			25	%	152,487			26	%	10	%
Income tax expense	36,827			6	%	47,076			8	%	(22	)%
Net income	131,485			20	%	105,411			18	%	25	%
Net income (loss) attributable to non-controlling interests	(123		)	—	%	436			—	%	(128	)%
Net income attributable to Core Laboratories N.V.	$	131,608		20	%	$	104,975		18	%	25	%
* Percentage based on applicable revenue rather than total revenue

Operating Results for the Three and Nine Months EndedSeptember 30, 2011 Compared to the Three and Nine Months EndedSeptember 30, 2010 (unaudited)

Service Revenue

Service revenue increased to $172.8 million for the third quarter of 2011, up 14% when compared to $151.7 million for the third quarter of 2010.  For the nine months endedSeptember 30, 2011, service revenue increased 11% to $495.6 million compared to $448.1 million for the respective period in 2010. The increase in service revenue was primarily due to the increases in reservoir rock and reservoir fluids phase-behavior studies.  Our large scale core analyses and reservoir fluid projects continue to provide meaningful revenue streams in the Middle East, Asia-Pacific and off the coasts of Africa.  

Product Sales Revenue

Revenue associated with product sales increased to $58.6 million for the third quarter of 2011, up 23% from $47.6 million for the third quarter of 2010. For the nine months endedSeptember 30, 2011, product sale revenues increased 22% to $168.2 million compared to $138.3 million for the same period in 2010. The increase in revenue was primarily driven by the acceptance of and demand for our specialized completion products in North American natural gas and oil shale reservoirs.   These specialized optimizing technologies are focused on high-end well completion and stimulation programs in the Haynesville, Marcellus, Montney and Eagle Ford shale plays and in multi-stage completions in the Bakken, Niobrara and Eagle Ford oil-shale plays. We are also providing completion and recompletion technologies and services to be used in reworking major, giant, and super-giant fields in southern Iraq.

Cost of Services

Cost of services expressed as a percentage of service revenue was 63% for the quarter ended September 30, 2011, up slightly from the 61% in the same period in 2010. For the nine months endedSeptember 30, 2011, cost of services expressed as a percentage of service revenue was 65% as compared to 64% for the same period in 2010.

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Cost of Product Sales

Cost of sales expressed as a percentage of product sales revenue was 71% for the quarter ended September 30, 2011 compared to 69% during the same period in 2010. For the nine months endedSeptember 30, 2011, cost of product sales expressed as a percentage of sales revenue was 70% compared to 69% for the same period in 2010. The cost of raw materials, especially metals has increased substantially in 2011.

General and Administrative Expenses

General and administrative expenses totaled $11.2 million for the third quarter of 2011, up from the $8.4 million incurred in the third quarter of 2010. This increase was primarily due to additional employee-related compensation costs. For the nine months endedSeptember 30, 2011, general and administrative expenses were 5% of revenue at $30.5 million compared to $24.0 million, or 4% of revenue, for the same period in 2010.

Depreciation and Amortization Expense

Depreciation and amortization expense was $5.7 million for the third quarter of 2011, down slightly from the third quarter of 2010. For the nine months endedSeptember 30, 2011, depreciation and amortization expense was $17.4 million, a slight increase from the nine months endedSeptember 30, 2010.

Other (Income) Expense, Net

Other (income) expense, net consisted of the following for the quarter and nine months endedSeptember 30, 2011 and 2010 (in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2011			2010			2011			2010
	(Unaudited)						(Unaudited)
(Gain) loss on sale of assets	$	(278	)	$	(88	)	$	(416	)	$	(80	)
Foreign exchange (gain) loss	1,522			(547		)	1,001			1,074
Interest income	(11		)	—			(96		)	(142		)
Rents and royalties	(440		)	(352		)	(1,273		)	(1,052		)
(Gain) loss on insurance recovery	—			—			(779		)	—
Legal entity realignment	—			—			711			—
Other, net	(245		)	(11		)	(324		)	(308		)
Total other (income) expense, net	$	548		$	(998	)	$	(1,176	)	$	(508	)

During the third quarter of 2010, an office and laboratory facility was damaged by fire, resulting in the loss of the laboratory portion of the building, as well as some of the laboratory equipment.  The final settlement was reached in the first quarter of 2011, which resulted in a gain of $0.8 million.

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Foreign exchange (gain) loss by currency are summarized in the following table (in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2011			2010			2011			2010
	(Unaudited)						(Unaudited)
Australian Dollar	$	206		$	(213	)	$	62		$	(110	)
British Pound	177			(133		)	130			283
Canadian Dollar	1,146			(102		)	603			(338		)
Euro	151			76			126			1,665
Mexican Peso	(161		)	(22		)	(19		)	72
Russian Ruble	(195		)	(18		)	(414		)	(33		)
Other currencies, net	198			(135		)	513			(465		)
Total (gain) loss	$	1,522		$	(547	)	$	1,001		$	1,074

Loss on Exchange of Senior Exchangeable Notes

In 2006, Core Laboratories LP, an entity 100% indirectly owned by Core Laboratories N.V., issued $300 million aggregate principal amount of Senior Exchangeable Notes (the "Exchangeable Notes") which are fully and unconditionally guaranteed by Core Laboratories N.V. and mature on October 31, 2011.  Under the terms of the Exchangeable Notes, defined criteria were met which allowed the Exchangeable Notes to be early exchanged during the third quarter of 2011, as it was during the second quarter of 2011, and as a result, the equity component of the Exchangeable Notes at September 30, 2011 was classified as temporary equity.  This balance combined with the debt amount reflects the amount that could result in cash settlement upon exchange.  We received eight requests to exchange 6,990 Exchangeable Notes which were settled during the third quarter of 2011 for $7.0 million in cash and 89,316 shares of our common stock, all of which were treasury shares, resulting in a loss of $31 thousand.  We also received five requests during the third quarter of 2011 to exchange 16,900 Exchangeable Notes which we will settle during the fourth quarter upon completion of the requisite holding period per the Note Indenture agreement.

Interest Expense

Interest expense for the three months ended September 30, 2011 and 2010 was $3.8 million and $4.0 million, respectively, which included $1.5 million and $3.8 million, respectively, of non-cash interest expense due to the amortization of the discount on the Exchangeable Notes.  Interest expense for the nine months endedSeptember 30, 2011 and 2010 was $8.7 million and $12.2 million, respectively, which included $5.5 million and $11.5 million, respectively, of non-cash interest expense due to the amortization of the discount on the Exchangeable Notes.  As 129,352 of our $1,000 principal amount Exchangeable Notes were exchanged between September 30, 2010 and September 30, 2011, the associated discount was moved to equity resulting in a lower amount of amortization to interest expense.

On August 24, 2011, we entered into a $100 million interest rate hedge that was unwound on September 16, 2011 resulting in a loss of $1.3 million which was recorded to interest expense.

Income Tax Expense

The effective tax rates for the three months ended September 30, 2011 and 2010 were 24.5% and 30.2%, respectively.  The effective tax rates for year to date 2011 and 2010 were 21.9% and 30.9%, respectively. Included in income tax expense is the reversal in the nine months ended September 30, 2011 of $10.4 million in tax liabilities provided over the period 2007-2010 as a result of recently concluded audits of prior year returns.  The decrease in income tax expense also reflects the change in activity levels among jurisdictions with different tax rates.

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Segment Analysis

Our operations are managed primarily in three complementary segments - Reservoir Description, Production Enhancement and Reservoir Management.  The following tables summarize our results by operating segment for the three and nine months ended September 30, 2011 and 2010 (in thousands):

	Three Months Ended September 30,				% Change
	2011		2010		2011/2010
Revenues:	(Unaudited)
Reservoir Description	$	119,853	$	106,485	13	%
Production Enhancement	97,407		78,992		23	%
Reservoir Management	14,084		13,744		2	%
Consolidated	$	231,344	$	199,221	16	%
Operating income (loss):
Reservoir Description	$	28,780	$	28,014	3	%
Production Enhancement	30,728		26,260		17	%
Reservoir Management	3,502		5,535		(37	)%
Corporate and Other1	554		408		NM
Consolidated	$	63,564	$	60,217	6	%
(1) "Corporate and Other" represents those items that are not directly related to a particular segment
"NM"  means not meaningful

	Nine Months Ended September 30,					% Change
	2011		2010			2011/2010
Revenues:	(Unaudited)
Reservoir Description	$	346,232	$	317,106		9	%
Production Enhancement	268,292		227,553			18	%
Reservoir Management	49,338		41,801			18	%
Consolidated	$	663,862	$	586,460		13	%
Operating income (loss):
Reservoir Description	$	81,847	$	78,229		5	%
Production Enhancement	78,490		73,355			7	%
Reservoir Management	17,473		14,827			18	%
Corporate and Other1	56		(1,061		)	NM
Consolidated	$	177,866	$	165,350		8	%
(1) "Corporate and Other" represents those items that are not directly related to a particular segment
"NM"  means not meaningful

Reservoir Description

Revenue from the Reservoir Description segment increased 13%, or $13.4 million, to $119.9 million in the third quarter of 2011, compared to $106.5 million in the third quarter of 2010.  For the nine months endedSeptember 30, 2011, revenues increased 9%, or $29.1 million, to $346.2 million from $317.1 million for the nine months endedSeptember 30, 2010. This segment’s operations, which are more focused on international crude-oil related products, continue to focus on large-scale core analyses and reservoir fluids characterization studies from Asia-Pacific areas, offshore West and East Africa, the Eastern Mediterranean region and the Middle East, including Iraq, Kuwait, and the United Arab Emirates.  

Operating income in the third quarter of 2011 increased by 3%, or $0.8 million, to $28.8 million compared to $28.0 million for the third quarter of 2010.  Operating income for the nine months endedSeptember 30, 2011 increased by 5%, or $3.6 million, to $81.8 million. Operating margin for the quarter ended September 30, 2011 was 24%, compared to 26% for the same period in 2010. This segment emphasizes technologically demanding services on internationally-based development and

29

production-related crude oil projects over the more cyclical exploration-related projects.

Production Enhancement

Revenue from the Production Enhancement segment increased by 23%, or $18.4 million, to $97.4 million in the third quarter of 2011 compared to $79.0 million in the third quarter of 2010. Revenues increased by 18%, or $40.7 million, to $268.3 million for the nine months endedSeptember 30, 2011 compared to $227.6 million for the same period in 2010. The revenue increase was primarily due to increased sales of our completion products and gun systems in markets relating to horizontal well developments of gas-shale and oil-shale reservoirs.

Operating income in the third quarter of 2011 increased by 17%, or $4.5 million, to $30.7 million from $26.3 million for the third quarter of 2010.  Operating margins remained consistent at 32% in the third quarter of 2011 and 33% for the same period in 2010.  For the nine months endedSeptember 30, 2011, operating income increased to $78.5 million, an increase of 7% over the same period in 2010. The increase in operating income from 2010 to 2011 was primarily driven by increased revenue from services related to our proprietary and patented diagnostic technologies, such as SpectraChem^® Plus+, SpectraScan^®, ZeroWash^®, our HERO™ line of perforating charges and gun systems and our HTD-Blast™ perforating system which is used for the perforation of extended-reach horizontal wells in non-conventional reservoirs.  

Reservoir Management

Revenue from the Reservoir Management segment increased by 2%, to $14.1 million, in the third quarter of 2011 compared to $13.7 million for the third quarter of 2010.  Revenues for the nine months endedSeptember 30, 2011 were $49.3 million, an increase of 18% from $41.8 million for the same period in 2010. The increase in revenue was due to ongoing interest in several of our existing multi-client reservoir studies such as the North American Gas Shale Study, the Marcellus Shale Evaluation study, the Haynesville & Bossier Shale Evaluation study and the Eagle Ford Shale study.

Operating income in the third quarter of 2011 decreased 37% to $3.5 million from $5.5 million for the third quarter of 2010. For the nine months endedSeptember 30, 2011, operating income was $17.5 million, compared to $14.8 million for the same period in 2010. Operating margins decreased to 25% in the third quarter of 2011 compared to 40% for the same period in 2010 primarily due to additional employee-related compensation and retention costs.

Liquidity and Capital Resources

General

We have historically financed our activities through cash on hand, cash flows from operations, bank credit facilities, or the issuance of debt and equity financing.

We utilize the non-GAAP financial measure of free cash flow to evaluate our cash flows and results of operations.  Free cash flow is defined as net cash provided by operating activities (which is the most directly comparable GAAP measure) less capital expenditures.  Management believes that free cash flow provides useful information to investors regarding the cash that was available in the period that was in excess of our needs to fund our capital expenditures and operating activities. Free cash flow is not a measure of operating performance under GAAP, and should not be considered in isolation nor construed as an alternative to operating profit, net income (loss) or cash flows from operating, investing or financing activities, each as determined in accordance with GAAP. Free cash flow does not represent residual cash available for distribution because we may have other non-discretionary expenditures that are not deducted from the measure. Moreover, since free cash flow is not a measure determined in accordance with GAAP and thus is susceptible to varying interpretations and calculations, free cash flow as presented, may not be comparable to similarly titled measures presented by other companies.  The following table reconciles this non-GAAP financial measure to the most directly comparable measure calculated and presented in accordance with GAAP for the nine months ended September 30, 2011 and 2010 (in thousands):

30

	Nine Months Ended September 30,				% Change
	2011		2010		2011/2010
Free cash flow calculation:	(Unaudited)
Net cash provided by operating activities	$	146,829	$	169,129	(13	)%
Less:  capital expenditures	18,203		19,661		(7	)%
Free cash flow	$	128,626	$	149,468	(14	)%

The decrease in free cash flow in 2011 compared to 2010 was primarily attributable to an increase in inventory in order to stock three new warehouses which were opened in 2011 and a utilization of income tax receivables in 2010. This was partially offset by an increase in net income.

Cash Flows

The following table summarizes cash flows for the nine months ended September 30, 2011 and 2010 (in thousands):

	Nine Months Ended September 30,						% Change
	2011			2010			2011/2010
Cash provided by/(used in):	(Unaudited)
Operating activities	$	146,829		$	169,129		(13	)%
Investing activities	(39,474		)	(29,792		)	32	%
Financing activities	(224,214		)	(152,429		)	47	%
Net change in cash and cash equivalents	$	(116,859	)	$	(13,092	)	793	%

The decrease in cash flows provided by operating activities was the result of an increase in inventory in order to stock three new warehouses which were opened in 2011 and a utilization of income tax receivables in 2010.

Cash flows used in investing activities were higher during the nine months ended September 30, 2011 primarily due to an increase in acquisition activity, $21.0 million in 2011 up from $9.0 million in 2010.

The increase in cash flows used in financing activities was caused by two types of transactions: the early exchange of our Exchangeable Notes and early settlement of our outstanding warrants.

We received eight requests to exchange 6,990 of our $1,000 face value Exchangeable Notes which were settled during the third quarter of 2011 for $7.0 million in cash and 89,316 treasury shares. During 2011, we accelerated the settlement of our outstanding warrants resulting in a cash payment of $219.5 million.  

The increased uses of cash described above were partially offset by a decrease in the number of shares repurchased under our common share repurchase program and an increase in the proceeds from debt borrowings.  In the first nine months of 2011, we repurchased 604,972 shares for an aggregate price of $55.5 million compared to 1,488,269 shares for an aggregate price of $92.1 million during the same period in 2010.

Notes, Credit Facilities and Available Future Liquidity

Under the terms of the Exchangeable Notes, defined criteria was met which allowed the Exchangeable Notes to be early exchanged during the third quarter of 2011, as it was during the second quarter of 2011, and as a result the equity component of the Exchangeable Notes at September 30, 2011 was classified as temporary equity.  This balance combined with the debt amount reflects the amount that could result in cash settlement upon exchange.  We received eight requests to exchange 6,990 Exchangeable Notes during the third quarter of 2011 which were settled for $7.0 million in cash and 89,316 shares of our common stock, all of which were treasury shares, resulting in a loss of $31.0 thousand.  We also received five requests during the third quarter to exchange 16,900 Exchangeable Notes which we will settle during the fourth quarter upon completion of the requisite holding period per the Note Indenture agreement.

In September 2011, we issued two series of senior notes with an aggregate principal amount of $150 million ("Senior Notes") in a private placement transaction. Series A consists of $75 million in aggregate principal amount of notes that bear interest at a

31

fixed rate of 4.01% and are due in full on September 30, 2021. Series B consists of $75 million in aggregate principal amount of notes that bear interest at a fixed rate of 4.11% and are due in full on September 30, 2023. Interest on each series of the Senior Notes is payable semi-annually on March 30 and September 30.

We maintain a revolving credit facility (the "Credit Facility") that allowed for an aggregate borrowing capacity of $300 million at September 30, 2011. The Credit Facility also provided an option to increase the commitment under the Credit Facility to $350 million, if certain conditions are met.  The Credit Facility bears interest at variable rates from LIBOR plus 1.50% to a maximum of LIBOR plus 2.25%.  Any outstanding balance under the Credit Facility is due September 28, 2016 when the Credit Facility matures.   Interest payment terms are variable depending upon the specific type of borrowing under this facility. Our available capacity is reduced by outstanding letters of credit and performance guarantees and bonds totaling $15.6 million at September 30, 2011 relating to certain projects in progress.  Our available borrowing capacity under the Credit Facility at September 30, 2011 was $279.4 million.  As of September 30, 2011, we had $11.1 million of outstanding letters of credit and performance guarantees and bonds in addition to those under the Credit Facility.

The terms of the Credit Facility require us to meet certain financial and operational covenants. We believe that we were in compliance with all such covenants at September 30, 2011.  All of our material, wholly owned subsidiaries are guarantors or co-borrowers under the Credit Facility.

Our ability to maintain and grow our operating income and cash flow depends, to a large extent, on continued investing activities. We are a Netherlands holding company and substantially all of our operations are conducted through subsidiaries. Consequently, our cash flow depends upon the ability of our subsidiaries to pay cash dividends or otherwise distribute or advance funds to us.  We believe our future cash flows from operations, supplemented by our borrowing capacity and issuances of additional equity, should be sufficient to fund our debt requirements, capital expenditures, working capital, dividend payments and future acquisitions.

Recent Accounting Pronouncements

In May 2011, the FASB issued ASU 2011-04 which relates to fair value measurement (FASB ASC Topic 820), which amends current guidance to achieve common fair value measurement and disclosure requirements in U.S. GAAP and International Financial Reporting Standards. The amendments generally represent clarification of FASB ASC Topic 820, but also include instances where a particular principle or requirement for measuring fair value or disclosing information about fair value measurements has changed. This pronouncement is effective for fiscal years, and interim periods within those years, beginning after December 15, 2011. We will adopt this pronouncement for our fiscal year beginning January 1, 2012. We do not expect this pronouncement to have a material effect on our consolidated financial statements.

In June 2011, the FASB issued ASU 2011-05 which provides new guidance on the presentation of comprehensive income (FASB ASC Topic 220) in financial statements. Entities are required to present total comprehensive income either in a single, continuous statement of comprehensive income or in two separate, but consecutive, statements. Under the single-statement approach, entities must include the components of net income, a total for net income, the components of other comprehensive income and a total for comprehensive income. Under the two-statement approach, entities must report an income statement and, immediately following, a statement of other comprehensive income. Under either method, entities must display adjustments for items reclassified from other comprehensive income to net income in both net income and other comprehensive income. The provisions for this pronouncement are effective for fiscal years, and interim periods within those years, beginning after December 15, 2011, with early adoption permitted. We will adopt this pronouncement for our fiscal year beginning January 1, 2012.

In September 2011, the FASB issued ASU 2011-08 which relates to testing goodwill for impairment (FASB ASC Topic 350), which amends current guidance to simplify how entities test goodwill for impairment. The amendments permit an entity to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test described in Topic 350. Under this amendment, an entity is not required to calculate the fair value of a reporting unit unless the entity determines that it is more likely than not that its fair value is less than its carrying amount. This pronouncement is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. We will adopt this pronouncement for our fiscal year beginning January 1, 2012. We do not expect this pronouncement to have a material effect on our consolidated financial statements.

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Item 3. Quantitative and Qualitative Disclosures About Market Risk

There have been no material changes in market risk from the information provided in Item 7A. "Quantitative and Qualitative Disclosures About Market Risk" in our Annual Report on Form 10-K for the fiscal year ended December 31, 2010.

Item 4. Controls and Procedures

A complete discussion of our controls and procedures is included in our Annual Report on Form 10-K for the year ended December 31, 2010.

Disclosure Controls and Procedures

Our management, under the supervision of and with the participation of our Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of our disclosure controls and procedures, as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), as of the end of the period covered by this report.  Our disclosure controls and procedures are designed to provide reasonable assurance that the information required to be disclosed by us in our reports filed or submitted under the Exchange Act is accumulated and communicated to management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure and is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the SEC.  Based on such evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that our disclosure controls and procedures were effective as of September 30, 2011 at the reasonable assurance level.

Our management does not expect that our disclosure controls and procedures or our internal control over financial reporting will prevent all errors and all fraud.  Further, the design of disclosure controls and internal control over financial reporting must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within a company have been detected.

Changes in Internal Control Over Financial Reporting

There have been no changes in our system of internal control over financial reporting, as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act, during our fiscal quarter ended September 30, 2011, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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CORE LABORATORIES N.V.

PART II - OTHER INFORMATION

Item 1.  Legal Proceedings

See Note 6 of Consolidated Interim Financial Statements in Part I, Item 1.

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

During the quarter ended September 30, 2011, we issued 89,316 shares of our common stock upon exchange by holders of $7.0 million aggregate principal amount of our Senior Exchangeable Notes and we issued 75,651 shares of our common stock upon the accelerated settlement of our warrants.  Such shares were issued in transactions exempt from registration under Section 3(a)(9) of the Securities Act of 1933, as amended.

The following table provides information about purchases of equity securities that are registered by us pursuant to Section 12 of the Exchange Act during the quarter ended September 30, 2011:

Period	Total Number of Shares Purchased	Average Price Paid Per Share		Total Number of Shares Purchased as Part of a Publicly Announced Program	Maximum Number of Shares That May Yet be Purchased Under the Program (3)
July 31, 2011 (1)	10,567	$	111.71	10,567	9,580,964
August 31, 2011 (2)	231	110.19		231	10,115,311
September 30, 2011	20,000	109.58		20,000	10,183,030
Total	30,798	$	110.31	30,798

(1) Contains 10,567 shares valued at approximately $1.2 million, or $111.71 per share, surrendered to us by participants in a stock-based compensation plan to settle any personal tax liabilities which may result from the award in July 2011.

(2) Contains 231 shares valued at approximately $25.5 thousand, or $110.19 per share, surrendered to us by participants in a stock-based compensation plan to settle any personal tax liabilities which may result from the award in August 2011.

(3) In connection with our initial public offering in September 1995, our shareholders authorized our Management Board to repurchase up to 10% of our issued share capital, the maximum allowed under Dutch law at the time, for a period of 18 months.  This authorization was renewed at subsequent annual or special shareholder meetings.  At our annual shareholders’ meeting on May 19, 2011, following a change in Dutch law that permitted us to repurchase up to 50% of our issued share capital in open market purchases, subject to shareholder approval, our shareholders authorized an extension to repurchase 10% of our issued share capital through November 19, 2012 and an additional 15.6% of our issued share capital until March 12, 2012 to fulfill obligations relating to the Notes or warrants. The repurchase of shares in the open market is at the discretion of management pursuant to this shareholder authorization.

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Exhibit No.		Exhibit Title	Incorporated by reference from the following documents
3.1	-	Articles of Association of Core Laboratories N.V., as amended (including English translation)	Exhibit 3.1 filed on July 26, 2010 with 10-Q  (File No. 001-14273)
4.1	-	Third Warrant Confirmation Amendment Agreement between Core Laboratories N.V. and Citibank, N.A., dated August 2, 2011	Form 8-K, August 8, 2011 (File No. 001-14273)
4.2	-	Fourth Warrant Confirmation Amendment Agreement between Core Laboratories N.V. and Citibank, N.A., dated August 30, 2011	Form 8-K, September 6, 2011 (File No. 001-14273)
10.1	-	Assignment, Assumption and Amendment to Credit Agreement related to the Fifth Amended and Restated Credit Agreement, dated as of September 28, 2011, among Core Laboratories N.V., Core Laboratories LP, Core Laboratories (U.S.) Interests Holdings, Inc. and the lenders party thereto and Bank of America, N.A., as administrative agent.	Form 8-K, September 30, 2011 (File No. 001-14273)
10.2	-	Master Note Purchase Agreement, dated as of September 30, 2011.	Form 8-K, September 30, 2011 (File No. 001-14273)
31.1	-	Certification of Chief Executive Officer Pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002	Filed herewith
31.2	-	Certification of Chief Financial Officer Pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002	Filed herewith
32.1	-	Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002	Furnished herewith
32.2	-	Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002	Furnished herewith
101.INS	-	XBRL Instance Document	Filed herewith
101.SCH	-	XBRL Schema Document	Filed herewith
101.CAL	-	XBRL Calculation Linkbase Document	Filed herewith
101.LAB	-	XBRL Label Linkbase Document	Filed herewith
101.PRE	-	XBRL Presentation Linkbase Document	Filed herewith
101.DEF	-	XBRL Definition Linkbased Document	Filed herewith

35

SIGNATURE

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

		CORE LABORATORIES N.V.
Date:	October 25, 2011	By:	/s/ Richard L. Bergmark
			Richard L. Bergmark
			Chief Financial Officer
			(Duly Authorized Officer and
			Principal Financial Officer)

36

EX-31.1

Certification

Exhibit 31.1

I, David M. Demshur, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Core Laboratories N.V. (the "Registrant");

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Registrant as of, and for, the periods presented in this report;

4. The Registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the Registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the Registrant's most recent fiscal quarter (the Registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Registrant's internal control over financial reporting; and

5. The Registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Registrant's auditors and the audit committee of the Registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant's internal control over financial reporting.

Date:	October 25, 2011	By:	/s/ David M. Demshur
			David M. Demshur
			Chief Executive Officer

EX-31.2

Certification

Exhibit 31.2

I, Richard L. Bergmark, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Core Laboratories N.V. (the "Registrant");

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Registrant as of, and for, the periods presented in this report;

4. The Registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the Registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the Registrant's most recent fiscal quarter (the Registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Registrant's internal control over financial reporting; and

5. The Registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Registrant's auditors and the audit committee of the Registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant's internal control over financial reporting.

Date:	October 25, 2011	By:	/s/ Richard L. Bergmark
			Richard L. Bergmark
			Chief Financial Officer

EX-32.1

Exhibit 32.1

Certification of

Chief Executive Officer

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

I, David M. Demshur, Chief Executive Officer of Core Laboratories N.V. (the "Company"), hereby certify that the accompanying report on Form 10-Q for the quarter ended September 30, 2011, filed by the Company with the Securities and Exchange Commission on the date hereof fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended, (the "Report").

I further certify that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:	October 25, 2011	/s/ David M. Demshur
		Name: David M. Demshur
		Title: Chief Executive Officer

EX-32.2

Exhibit 32.2

Certification of

Chief Financial Officer

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

I, Richard L. Bergmark, Chief Financial Officer of Core Laboratories N.V. (the "Company"), hereby certify that the accompanying report on Form 10-Q for the quarter ended September 30, 2011, filed by the Company with the Securities and Exchange Commission on the date hereof fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended, (the "Report").

I further certify that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:	October 25, 2011	/s/ Richard L. Bergmark
		Name: Richard L. Bergmark
		Title: Chief Financial Officer

XML

Balance Sheet Parenthetical Parentheticals (USD $) In Thousands, except Share data	Sep. 30, 2011	Dec. 31, 2010
Allowance for Doubtful Accounts Receivable, Current	$ 3,461	$ 3,396
Common Stock, Par or Stated Value Per Share	$ 0.02	$ 0.02
Common Stock, Shares Authorized	200,000,000	200,000,000
Common Stock, Shares, Issued	49,037,806	49,739,912
Common Stock, Shares, Outstanding	46,667,158	45,521,186
Treasury Stock, Shares	2,370,648	4,218,726
Preferred Stock, Par or Stated Value Per Share	$ 0.02	$ 0.02
Preferred Stock, Shares Authorized	6,000,000	6,000,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0

XML

Statement of Income Statement (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
REVENUE:
Services	$ 172,770	$ 151,671	$ 495,640	$ 448,123
Product sales	58,574	47,550	168,222	138,337
Total Revenue	231,344	199,221	663,862	586,460
OPERATING EXPENSES:
Cost of services, exclusive of depreciation expense shown below	108,601	92,914	321,334	284,682
Cost of product sales, exclusive of depreciation expense shown below	41,711	32,858	118,001	95,595
General and Administrative Expense, Excluding Depreciation	11,182	8,416	30,463	24,007
Depreciation	5,460	5,496	16,507	16,345
Amortization	278	318	867	989
Other (income), net	548	(998)	(1,176)	(508)
OPERATING INCOME	63,564	60,217	177,866	165,350
Loss on exchange of Senior Exchangeable Notes	31	675	870	675
Interest expense	3,825	4,015	8,684	12,188
Income before income tax expense	59,708	55,527	168,312	152,487
Income Tax Expense (Benefit)	14,599	16,764	36,827	47,076
Net income	45,109	38,763	131,485	105,411
Net Income (Loss) Attributable to Non-controlling Interest	242	209	(123)	436
Net income attributable to Core Laboratories N.V.	$ 44,867	$ 38,554	$ 131,608	$ 104,975
EARNINGS PER SHARE INFORMATION:
Basic earnings per share attributable to Core Laboratories N.V.	$ 0.96	$ 0.86	$ 2.87	$ 2.35
Diluted earnings per share attributable to Core Laboratories N.V.	$ 0.93	$ 0.79	$ 2.71	$ 2.19
Cash dividends per share	$ 0.25	$ 0.71	$ 0.75	$ 0.83
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
Basic	46,606	44,736	45,930	44,741
Diluted	48,030	48,955	48,634	47,923

XML

Equity Level 3 (Tables)

9 Months Ended

Sep. 30, 2011

Equity [Abstract]

Schedule of Stockholders Equity [Table Text Block]

The following table summarizes our changes in equity for the nine months ended September 30, 2011 (in thousands):

	Common			Additional Paid-In			Retained			Accumulated Other Comprehensive			Treasury			Non- Controlling			Total
(Unaudited)	Shares			Capital			Earnings			Income (Loss)			Stock			Interests			Equity
December 31, 2010	$	1,397		$	—		$	536,991		$	(6,207	)	$	(242,690	)	$	2,849		$	292,340
Stock options exercised	—			(1,658		)	—			—			1,953			—			295
Stock based-awards	—			6,007			(744		)	—			8,078			—			13,341
Tax benefit of stock-based awards issued	—			2,315			—			—			—			—			2,315
Repurchase of common shares	—			—			—			—			(55,495		)	—			(55,495		)
Dividends paid	—			—			(34,356		)	—			—			—			(34,356		)
Cancellation of common shares	(21		)	—			(40,894		)	—			40,915			—			—
Equity component of short-term debt	—			8,355			—			—			—			—			8,355
Exchange of Senior Exchangeable Notes	—			(8,425		)	(40,394		)	—			46,870			—			(1,949		)
Settlement of warrants	—			(6,594		)	(256,039		)	—			43,182			—			(219,451		)
Non-controlling interests contribution	—			—			—			—			—			1,193			1,193
Non-controlling interests dividends	—			—			—			—			—			(251		)	(251		)
Comprehensive income:
Amortization of deferred pension costs, net of tax	—			—			—			228			—			—			228
Net income (loss)	—			—			131,608			—			—			(123		)	131,485
Total comprehensive income																			131,713
September 30, 2011	$	1,376		$	—		$	296,172		$	(5,979	)	$	(157,187	)	$	3,668		$	138,050

Schedule of Comprehensive Income (Loss) [Table Text Block]

The components of comprehensive income consisted of the following (in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2011		2010		2011		2010
	(Unaudited)				(Unaudited)
Net income	$	45,109	$	38,763	$	131,485	$	105,411
Amortization of deferred pension costs, net of tax	76		86		228		257
Total comprehensive income	$	45,185	$	38,849	$	131,713	$	105,668

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

Accumulated other comprehensive income (loss) consisted of the following (in thousands):

	September 30, 2011			December 31, 2010
	(Unaudited)
Prior service cost	$	(764	)	$	(853	)
Transition asset	276			324
Unrecognized net actuarial loss	(5,491		)	(5,678		)
Total accumulated other comprehensive income (loss)	$	(5,979	)	$	(6,207	)

XML

Document and Entity Information Document	9 Months Ended
	Sep. 30, 2011
Entity Information [Line Items]
Entity Registrant Name	CORE LABORATORIES N V
Entity Central Index Key	0001000229
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2011
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding	46,626,678

XML

Segment Reporting Level 3 (Tables)

9 Months Ended

Sep. 30, 2011

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

Summarized financial information concerning our segments is shown in the following table (in thousands):

(Unaudited)	Reservoir Description		Production Enhancement		Reservoir Management		Corporate & Other 1			Consolidated
Three Months Ended September 30, 2011
Revenues from unaffiliated customers	$	119,853	$	97,407	$	14,084	$	—		$	231,344
Inter-segment revenues	446		232		377		(1,055		)	—
Segment operating income (loss)	28,780		30,728		3,502		554			63,564
Total assets	267,425		235,152		16,211		44,113			562,901
Capital expenditures	2,940		2,410		204		665			6,219
Depreciation and amortization	3,521		1,563		164		490			5,738
Three Months Ended September 30, 2010
Revenues from unaffiliated customers	$	106,485	$	78,992	$	13,744	$	—		$	199,221
Inter-segment revenues	441		390		319		(1,150		)	—
Segment operating income (loss)	28,014		26,260		5,535		408			60,217
Total assets	261,582		189,481		14,958		179,008			645,029
Capital expenditures	5,351		1,135		201		278			6,965
Depreciation and amortization	3,485		1,600		199		530			5,814
Nine Months Ended September 30, 2011
Revenues from unaffiliated customers	$	346,232	$	268,292	$	49,338	$	—		$	663,862
Inter-segment revenues	1,262		897		1,331		(3,490		)	—
Segment operating income (loss)	81,847		78,490		17,473		56			177,866
Total assets	267,425		235,152		16,211		44,113			562,901
Capital expenditures	10,322		5,713		595		1,573			18,203
Depreciation and amortization	10,520		4,780		513		1,561			17,374
Nine Months Ended September 30, 2010
Revenues from unaffiliated customers	$	317,106	$	227,553	$	41,801	$	—		$	586,460
Inter-segment revenues	989		1,103		1,034		(3,126		)	—
Segment operating income (loss)	78,229		73,355		14,827		(1,061		)	165,350
Total assets	261,582		189,481		14,958		179,008			645,029
Capital expenditures	15,280		2,527		458		1,396			19,661
Depreciation and amortization	10,515		4,849		523		1,447			17,334

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Commitments and Contingencies Level 1 (Notes)

9 Months Ended

Sep. 30, 2011

COMMITMENTS AND CONTINGENCIES [Abstract]

Commitments and Contingencies Disclosure [Text Block]

COMMITMENTS AND CONTINGENCIES

We have been and may from time to time be named as a defendant in legal actions that arise in the ordinary course of business.  These include, but are not limited to, employment-related claims and contractual disputes or claims for personal injury or property damage which occur in connection with the provision of our products and services.  Management does not currently believe that any of our pending contractual, employment-related, personal injury or property damage claims and disputes will have a material effect on our future results of operations, financial position or cash flow.

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Condensed Consolidating Financial Information Level 3 (Tables)

9 Months Ended

Sep. 30, 2011

CONDENSED CONSOLIDATING FINANCIAL INFORMATION [Abstract]

Schedule of Condensed Financial Statements Balance Sheet [Table Text Block]

Condensed Consolidating Balance Sheets (Unaudited)
(In thousands)	September 30, 2011
	Core Laboratories N.V. (Parent/ Guarantor)		Core Laboratories LP (Issuer)		Other Subsidiaries (Non- Guarantors)		Consolidating Adjustments			Consolidated Total
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	1,273	$	7,986	$	7,762	$	—		$	17,021
Accounts receivable, net	231		35,914		121,449		—			157,594
Inventories	—		5,461		47,075		—			52,536
Prepaid expenses and other current assets	7,966		5,413		13,893		—			27,272
Total current assets	9,470		54,774		190,179		—			254,423
PROPERTY, PLANT AND EQUIPMENT, net	—		21,014		89,011		—			110,025
GOODWILL AND INTANGIBLES, net	37,318		15,244		117,733		—			170,295
INTERCOMPANY RECEIVABLES	21,868		143,464		681,761		(847,093		)	—
INVESTMENT IN AFFILIATES	599,191		—		1,937,663		(2,535,970		)	884
DEFERRED TAX ASSETS, net	2,167		2,453		1,966		—			6,586
OTHER ASSETS	2,823		11,936		5,929		—			20,688
TOTAL ASSETS	$	672,837	$	248,885	$	3,024,242	$	(3,383,063	)	$	562,901
LIABILITIES AND EQUITY
CURRENT LIABILITIES:
Accounts payable	$	1,014	$	6,849	$	38,913	$	—		$	46,776
Short-term debt and lease obligations	—		84,436		57		—			84,493
Other accrued expenses	2,802		28,820		47,228		—			78,850
Total current liabilities	3,816		120,105		86,198		—			210,119
LONG-TERM DEBT & LEASE OBLIGATIONS	—		—		155,093		—			155,093
DEFERRED COMPENSATION	6,635		15,566		106		—			22,307
DEFERRED TAX LIABILITIES, net	—		—		—		—			—
INTERCOMPANY PAYABLES	518,544		65,908		262,641		(847,093		)	—
OTHER LONG-TERM LIABILITIES	9,460		2,954		24,409		—			36,823
Equity component of short-term debt -senior exchangeable notes	—		509		—		—			509
SHAREHOLDERS' EQUITY	134,382		43,843		2,492,127		(2,535,970		)	134,382
NON-CONTROLLING INTERESTS	—		—		3,668		—			3,668
TOTAL EQUITY	134,382		43,843		2,495,795		(2,535,970		)	138,050
TOTAL LIABILITIES AND EQUITY	$	672,837	$	248,885	$	3,024,242	$	(3,383,063	)	$	562,901

Schedule of Condensed Financial Statements Prior Year Balance Sheet [Table Text Block]

Condensed Consolidating Balance Sheets
(In thousands)	December 31, 2010
	Core Laboratories N.V. (Parent/ Guarantor)		Core Laboratories LP (Issuer)		Other Subsidiaries (Non- Guarantors)		Consolidating Adjustments			Consolidated Total
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	11,162	$	88,612	$	34,106	$	—		$	133,880
Accounts receivable, net	10		33,637		121,079		—			154,726
Inventories	—		4,127		29,852		—			33,979
Prepaid expenses and other current assets	5,641		9,437		11,657		—			26,735
	16,813		135,813		196,694		—			349,320
PROPERTY, PLANT AND EQUIPMENT, net	—		21,139		83,084		—			104,223
GOODWILL AND INTANGIBLES, net	46,986		15,838		100,053		—			162,877
INTERCOMPANY RECEIVABLES	21,749		164,945		242,754		(429,448		)	—
INVESTMENT IN AFFILIATES	553,693		—		1,567,416		(2,120,414		)	695
DEFERRED TAX ASSETS, net	2,810		—		6,436		(9,246		)	—
OTHER ASSETS	3,209		13,099		2,619		—			18,927
TOTAL ASSETS	$	645,260	$	350,834	$	2,199,056	$	(2,559,108	)	$	636,042
LIABILITIES AND EQUITY
CURRENT LIABILITIES:
Accounts payable	$	336	$	5,144	$	39,230	$	—		$	44,710
Short-term debt and lease obligations	—		147,543		—		—			147,543
Other accrued expenses	2,291		29,250		55,559		—			87,100
Total current liabilities	2,627		181,937		94,789		—			279,353
DEFERRED COMPENSATION	6,159		14,981		101		—			21,241
DEFERRED TAX LIABILITIES, net	—		11,444		—		(9,246		)	2,198
INTERCOMPANY PAYABLES	333,651		—		95,797		(429,448		)	—
OTHER LONG-TERM LIABILITIES	13,332		1,099		17,615		—			32,046
Equity component of short-term debt -senior exchangeable notes	—		8,864		—		—			8,864
SHAREHOLDERS' EQUITY	289,491		132,509		1,987,905		(2,120,414		)	289,491
NON-CONTROLLING INTERESTS	—		—		2,849		—			2,849
TOTAL EQUITY	289,491		132,509		1,990,754		(2,120,414		)	292,340
TOTAL LIABILITIES AND EQUITY	$	645,260	$	350,834	$	2,199,056	$	(2,559,108	)	$	636,042

Schedule of Condensed Financial Statements Income Statement Quarter [Table Text Block]

Condensed Consolidating Statements of Operations (Unaudited)
(In thousands)	Three Months Ended September 30, 2011
	Core Laboratories N.V. (Parent/ Guarantor)			Core Laboratories LP (Issuer)		Other Subsidiaries (Non- Guarantors)		Consolidating Adjustments			Consolidated Total
REVENUE
Operating revenue	$	—		$	55,777	$	175,567	$	—		$	231,344
Intercompany revenue	486			6,091		37,676		(44,253		)	—
Earnings (loss) from consolidated affiliates	42,418			—		521,367		(563,785		)	—
Total revenue	42,904			61,868		734,610		(608,038		)	231,344
OPERATING EXPENSES
Operating costs	421			28,501		121,390		—			150,312
General and administrative expenses	1,451			9,706		25		—			11,182
Depreciation and amortization	—			1,550		4,188		—			5,738
Other (income) expense, net	(1,088		)	2,972		32,603		(33,939		)	548
Operating income	42,120			19,139		576,404		(574,099		)	63,564
Loss on exchange of Senior Exchangeable Notes	—			31		—		—			31
Interest expense	—			12,062		—		(8,237		)	3,825
Income (loss) before income tax expense	42,120			7,046		576,404		(565,862		)	59,708
Income tax (benefit) expense	(2,747		)	5,817		11,529		—			14,599
Net income	44,867			1,229		564,875		(565,862		)	45,109
Net income (loss) attributable to non-controlling interest	—			—		242		—			242
Net income (loss) attributable to Core Laboratories	$	44,867		$	1,229	$	564,633	$	(565,862	)	$	44,867

Schedule of Condensed Financial Statements Income Statement YTD [Table Text Block]

Condensed Consolidating Statements of Operations (Unaudited)
(In thousands)	Nine Months Ended September 30, 2011
	Core Laboratories N.V. (Parent/ Guarantor)			Core Laboratories LP (Issuer)			Other Subsidiaries (Non- Guarantors)			Consolidating Adjustments			Consolidated Total
REVENUE
Operating revenue	$	—		$	156,512		$	507,350		$	—		$	663,862
Intercompany revenue	1,255			17,786			108,570			(127,611		)	—
Earnings (loss) from consolidated affiliates	129,126			—			592,170			(721,296		)	—
Total revenue	130,381			174,298			1,208,090			(848,907		)	663,862
OPERATING EXPENSES
Operating costs	979			80,498			357,858			—			439,335
General and administrative expenses	6,066			24,360			37			—			30,463
Depreciation and amortization	—			4,779			12,595			—			17,374
Other (income) expense, net	(145		)	9,581			88,945			(99,557		)	(1,176		)
Operating income	123,481			55,080			748,655			(749,350		)	177,866
Loss on exchange of Senior Exchangeable Notes	—			870			—			—			870
Interest expense	—			95,071			—			(86,387		)	8,684
Income (loss) before income tax expense	123,481			(40,861		)	748,655			(662,963		)	168,312
Income tax (benefit) expense	(8,127		)	16,808			28,146			—			36,827
Net income	131,608			(57,669		)	720,509			(662,963		)	131,485
Net income (loss) attributable to non-controlling interest	—			—			(123		)	—			(123		)
Net income (loss) attributable to Core Laboratories	$	131,608		$	(57,669	)	$	720,632		$	(662,963	)	$	131,608

Schedule of Condensed Financial Statements Cash Flow [Table Text Block]

Condensed Consolidating Statements of Cash Flows (Unaudited)
(In thousands)	Nine Months Ended September 30, 2011
	Core Laboratories N.V. (Parent/ Guarantor)			Core Laboratories LP (Issuer)			Other Subsidiaries (Non- Guarantors)			Consolidating Adjustments		Consolidated Total
Net cash provided by (used in) operating activities	$	296,803		$	(2,406	)	$	(147,568	)	$	—	$	146,829
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	—			(4,087		)	(14,116		)	—		(18,203		)
Patents and other intangibles	—			(23		)	(154		)	—		(177		)
Business acquisitions, net of cash acquired	—			—			(21,000		)	—		(21,000		)
Proceeds from sale of assets	—			112			571			—		683
Proceeds from insurance recovery	—			—			884			—		884
Premiums on life insurance	—			(1,661		)	—			—		(1,661		)
Net cash used in investing activities	—			(5,659		)	(33,815		)	—		(39,474		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of debt	—			(71,467		)	(158,000		)	—		(229,467		)
Proceeds from debt	—			—			313,000			—		313,000
Stock options exercised	295			—			—			—		295
Excess tax benefits from stock-based compensation	2,315			—			—			—		2,315
Debt financing costs	—			(1,094		)	(903		)	—		(1,997		)
Settlement of warrants	(219,451		)	—			—			—		(219,451		)
Non-controlling interests - contributions	—			—			1,193			—		1,193
Non-controlling interests - dividends	—			—			(251		)	—		(251		)
Dividends paid	(34,356		)	—			—			—		(34,356		)
Repurchase of common shares	(55,495		)	—			—			—		(55,495		)
Net cash provided by (used in) financing activities	(306,692		)	(72,561		)	155,039			—		(224,214		)
NET CHANGE IN CASH AND CASH EQUIVALENTS	(9,889		)	(80,626		)	(26,344		)	—		(116,859		)
CASH AND CASH EQUIVALENTS, beginning of period	11,162			88,612			34,106			—		133,880
CASH AND CASH EQUIVALENTS, end of period	$	1,273		$	7,986		$	7,762		$	—	$	17,021

Schedule of Condensed Financial Statements Income Statement Prior Year Quarter [Table Text Block]

Condensed Consolidating Statements of Operations (Unaudited)
(In thousands)	Three Months Ended September 30, 2010
	Core Laboratories N.V. (Parent/ Guarantor)		Core Laboratories LP (Issuer)			Other Subsidiaries (Non- Guarantors)		Consolidating Adjustments			Consolidated Total
REVENUE
Operating revenue	$	—	$	48,856		$	150,365	$	—		$	199,221
Intercompany revenue	356		6,230			37,948		(44,534		)	—
Earnings from consolidated affiliates	42,764		—			69,553		(112,317		)	—
Total revenue	43,120		55,086			257,866		(156,851		)	199,221
OPERATING EXPENSES
Operating costs	346		24,928			100,498		—			125,772
General and administrative expenses	1,416		6,997			3		—			8,416
Depreciation and amortization	—		1,610			4,204		—			5,814
Other (income) expense, net	1,178		3,850			26,265		(32,291		)	(998		)
Operating income	40,180		17,701			126,896		(124,560		)	60,217
Loss on exchange of Senior Exchangeable Notes	—		675			—		—			675
Interest expense	—		24,008			3		(19,996		)	4,015
Income before income tax expense	40,180		(6,982		)	126,893		(104,564		)	55,527
Income tax (benefit) expense	1,626		10,463			4,675		—			16,764
Net income	38,554		(17,445		)	122,218		(104,564		)	38,763
Net income attributable to non-controlling interests	—		—			209		—			209
Net income attributable to Core Laboratories	$	38,554	$	(17,445	)	$	122,009	$	(104,564	)	$	38,554

Schedule of Condensed Financial Statements Income Statement Prior Year YTD [Table Text Block]

Condensed Consolidating Statements of Operations (Unaudited)
(In thousands)	Nine Months Ended September 30, 2010
	Core Laboratories N.V. (Parent/ Guarantor)		Core Laboratories LP (Issuer)			Other Subsidiaries (Non- Guarantors)		Consolidating Adjustments			Consolidated Total
REVENUE
Operating revenue	$	—	$	142,403		$	444,057	$	—		$	586,460
Intercompany revenue	1,023		18,436			108,908		(128,367		)	—
Earnings from consolidated affiliates	115,662		—			286,057		(401,719		)	—
Total revenue	116,685		160,839			839,022		(530,086		)	586,460
OPERATING EXPENSES
Operating costs	1,058		75,149			304,070		—			380,277
General and administrative expenses	5,730		18,267			10		—			24,007
Depreciation and amortization	—		4,722			12,612		—			17,334
Other (income) expense, net	2,035		8,852			84,457		(95,852		)	(508		)
Operating income	107,862		53,849			437,873		(434,234		)	165,350
Loss on exchange of Senior Exchangeable Notes	—		675			—		—			675
Interest expense	—		32,175			9		(19,996		)	12,188
Income before income tax expense	107,862		20,999			437,864		(414,238		)	152,487
Income tax (benefit) expense	2,887		21,937			22,252		—			47,076
Net income	104,975		(938		)	415,612		(414,238		)	105,411
Net income attributable to non-controlling interests	—		—			436		—			436
Net income attributable to Core Laboratories	$	104,975	$	(938	)	$	415,176	$	(414,238	)	$	104,975

Schedule of Condensed Financial Statements Cash Flow Prior Year [Table Text Block]

Condensed Consolidating Statements of Cash Flows (Unaudited)
(In thousands)	Nine Months Ended September 30, 2010
	Core Laboratories N.V. (Parent/ Guarantor)			Core Laboratories LP (Issuer)			Other Subsidiaries (Non- Guarantors)			Consolidating Adjustments		Consolidated Total
Net cash provided by operating activities	$	63,267		$	87,595		$	18,267		$	—	$	169,129
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	—			(2,899		)	(16,762		)	—		(19,661		)
Patents and other intangibles	—			(3		)	(177		)	—		(180		)
Business acquisitions, net of cash acquired	—			(9,000		)	—			—		(9,000		)
Proceeds from sale of assets	—			11			395			—		406
Premiums on life insurance	—			(1,357		)	—			—		(1,357		)
Net cash used in investing activities	—			(13,248		)	(16,544		)	—		(29,792		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of debt	—			(24,366		)	—			—		(24,366		)
Stock options exercised	336			—			—			—		336
Excess tax benefit from stock-based payments	798			—			—			—		798
Non-controlling interests - contributions	—			—			156			—		156
Non-controlling interests - dividends	—			—			(181		)	—		(181		)
Dividends paid	(37,095		)	—			—			—		(37,095		)
Repurchase of common shares	(92,077		)	—			—			—		(92,077		)
Net cash used in financing activities	(128,038		)	(24,366		)	(25		)	—		(152,429		)
NET CHANGE IN CASH AND CASH EQUIVALENTS	(64,771		)	49,981			1,698			—		(13,092		)
CASH AND CASH EQUIVALENTS, beginning of period	73,998			95,048			11,999			—		181,045
CASH AND CASH EQUIVALENTS, end of period	$	9,227		$	145,029		$	13,697		$	—	$	167,953

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Condensed Consolidating Financial Information Cash Flow (Details) (USD $) In Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010	Dec. 31, 2009
Condensed Financial Statements, Captions [Line Items]
Proceeds from Sale of Productive Assets			$ 683	$ 406
Non-controlling interest - contributions			(1,193)	(156)
ProceedsFromInsuranceRecoveries			884
Payments of Dividends, Noncontrolling Interest			(251)	(181)
Cash and Cash Equivalents, Period Increase (Decrease)			(116,859)	(13,092)
Proceeds from Stock Options Exercised			295	336
Excess Tax Benefit from Share-based Compensation, Financing Activities			2,315	798
Payments of Debt Issuance Costs			(1,997)	0
Settlement of Warrants			(219,451)	0
Net Cash Provided by (Used in) Operating Activities			146,829	169,129
Payments of Dividends			(34,356)	(37,095)
Premiums on life insurance			(1,661)	(1,357)
Payments for Repurchase of Common Stock			(55,495)	(92,077)
Net Cash Provided by (Used in) Financing Activities			(224,214)	(152,429)
Net Cash Provided by (Used in) Investing Activities			(39,474)	(29,792)
Repayment of debt borrowings			(229,467)	24,366
Proceeds from debt borrowings			313,000	0
Cash and Cash Equivalents, at Carrying Value	17,021	167,953	17,021	167,953	133,880	181,045
Capital expenditures	(6,219)	(6,965)	(18,203)	(19,661)
Payments to Acquire Intangible Assets			(177)	(180)
Business Acquisitions			(21,000)	(9,000)
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Proceeds from Sale of Productive Assets			571	(395)
Non-controlling interest - contributions			(1,193)	(156)
ProceedsFromInsuranceRecoveries			884
Payments of Dividends, Noncontrolling Interest			(251)	(181)
Cash and Cash Equivalents, Period Increase (Decrease)			(26,344)	1,698
Proceeds from Stock Options Exercised			0	0
Excess Tax Benefit from Share-based Compensation, Financing Activities			0	0
Payments of Debt Issuance Costs			(903)
Settlement of Warrants			0
Net Cash Provided by (Used in) Operating Activities			(147,568)	18,267
Payments of Dividends			0	0
Premiums on life insurance			0	0
Payments for Repurchase of Common Stock			0	0
Net Cash Provided by (Used in) Financing Activities			155,039	(25)
Net Cash Provided by (Used in) Investing Activities			(33,815)	(16,544)
Repayment of debt borrowings			(158,000)	0
Proceeds from debt borrowings			313,000
Cash and Cash Equivalents, at Carrying Value	7,762	13,697	7,762	13,697	34,106	11,999
Capital expenditures			(14,116)	(16,762)
Payments to Acquire Intangible Assets			(154)	(177)
Business Acquisitions			21,000	0
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Proceeds from Sale of Productive Assets			0
Non-controlling interest - contributions				0
ProceedsFromInsuranceRecoveries			0
Payments of Dividends, Noncontrolling Interest			0	0
Cash and Cash Equivalents, Period Increase (Decrease)			(9,889)	(64,771)
Proceeds from Stock Options Exercised			295	336
Excess Tax Benefit from Share-based Compensation, Financing Activities			2,315	798
Payments of Debt Issuance Costs			0
Settlement of Warrants			(219,451)
Net Cash Provided by (Used in) Operating Activities			296,803	63,267
Payments of Dividends			(34,356)	(37,095)
Premiums on life insurance			0	0
Payments for Repurchase of Common Stock			(55,495)	(92,077)
Net Cash Provided by (Used in) Financing Activities			(306,692)	(128,038)
Net Cash Provided by (Used in) Investing Activities			0	0
Repayment of debt borrowings			0	0
Proceeds from debt borrowings			0
Cash and Cash Equivalents, at Carrying Value	1,273	9,227	1,273	9,227	11,162	73,998
Capital expenditures			0	0
Payments to Acquire Intangible Assets			0	0
Business Acquisitions			0	0
Subsidiaries Issuer [Member]
Condensed Financial Statements, Captions [Line Items]
Proceeds from Sale of Productive Assets			112	(11)
Non-controlling interest - contributions				0
ProceedsFromInsuranceRecoveries			0
Payments of Dividends, Noncontrolling Interest			0	0
Cash and Cash Equivalents, Period Increase (Decrease)			(80,626)	49,981
Proceeds from Stock Options Exercised			0	0
Excess Tax Benefit from Share-based Compensation, Financing Activities			0	0
Payments of Debt Issuance Costs			(1,094)
Settlement of Warrants			0
Net Cash Provided by (Used in) Operating Activities			(2,406)	87,595
Payments of Dividends			0	0
Premiums on life insurance			(1,661)	(1,357)
Payments for Repurchase of Common Stock			0	0
Net Cash Provided by (Used in) Financing Activities			(72,561)	(24,366)
Net Cash Provided by (Used in) Investing Activities			(5,659)	(13,248)
Repayment of debt borrowings			(71,467)	24,366
Proceeds from debt borrowings			0
Cash and Cash Equivalents, at Carrying Value	7,986	145,029	7,986	145,029	88,612	95,048
Capital expenditures			(4,087)	(2,899)
Payments to Acquire Intangible Assets			(23)	(3)
Business Acquisitions			0	(9,000)
Consolidation, Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Proceeds from Sale of Productive Assets			0	0
Non-controlling interest - contributions			0	0
ProceedsFromInsuranceRecoveries			0
Payments of Dividends, Noncontrolling Interest			0	0
Cash and Cash Equivalents, Period Increase (Decrease)			0	0
Proceeds from Stock Options Exercised			0	0
Excess Tax Benefit from Share-based Compensation, Financing Activities			0	0
Settlement of Warrants			0
Net Cash Provided by (Used in) Operating Activities			0	0
Payments of Dividends			0	0
Premiums on life insurance			0	0
Payments for Repurchase of Common Stock			0	0
Net Cash Provided by (Used in) Financing Activities			0	0
Net Cash Provided by (Used in) Investing Activities			0	0
Repayment of debt borrowings			0	0
Proceeds from debt borrowings			0
Cash and Cash Equivalents, at Carrying Value	0	0	0	0	0	0
Capital expenditures			0	0
Payments to Acquire Intangible Assets			0	0
Business Acquisitions			$ 0	$ 0

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Other (Income), net Foreign Currency (Gain ) Loss by Currency (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Foreign Currency Transaction Gain (Loss), before Tax	$ 1,522	$ (547)	$ 1,001	$ 1,074
AustralianDollar [Member]
Foreign Currency Transaction Gain (Loss), before Tax	206	(213)	62	(110)
British Pound [Member]
Foreign Currency Transaction Gain (Loss), before Tax	177	(133)	130	283
Canadian Dollar [Member]
Foreign Currency Transaction Gain (Loss), before Tax	1,146	(102)	603	(338)
Euro [Member]
Foreign Currency Transaction Gain (Loss), before Tax	151	76	126	1,665
Mexican Peso [Member]
Foreign Currency Transaction Gain (Loss), before Tax	(161)	(22)	(19)	72
Russian Ruble [Member]
Foreign Currency Transaction Gain (Loss), before Tax	(195)	(18)	(414)	(33)
Other Currencies Net [Member]
Foreign Currency Transaction Gain (Loss), before Tax	$ 198	$ (135)	$ 513	$ (465)

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Other (Income), net Level 3 (Tables)

9 Months Ended

Sep. 30, 2011

OTHER (INCOME), NET [Abstract]

ForeignCurrencyGainsLossesByCurrency [Table Text Block]

Foreign exchange (gain) loss by currency are summarized in the following table (in thousands):

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2011			2010			2011			2010
	(Unaudited)						(Unaudited)
Australian Dollar	$	206		$	(213	)	$	62		$	(110	)
British Pound	177			(133		)	130			283
Canadian Dollar	1,146			(102		)	603			(338		)
Euro	151			76			126			1,665
Mexican Peso	(161		)	(22		)	(19		)	72
Russian Ruble	(195		)	(18		)	(414		)	(33		)
Other currencies, net	198			(135		)	513			(465		)
Total (gain) loss	$	1,522		$	(547	)	$	1,001		$	1,074

Schedule of Other Operating Cost and Expense, by Component [Table Text Block]

The components of other (income) expense, net, were as follows (in thousands):

	Three Months Ended							Nine Months Ended
	September 30,							September 30,
	2011				2010			2011			2010
	(Unaudited)							(Unaudited)
(Gain) loss on sale of assets	$	(278	)		$	(88	)	$	(416	)	$	(80	)
Foreign exchange (gain) loss	1,522				(547		)	1,001			1,074
Interest income	(11		)		—			(96		)	(142		)
Rents and royalties	(440		)		(352		)	(1,273		)	(1,052		)
(Gain) loss on insurance recovery	—				—			(779		)	—
Legal entity realignment	—			711	—			711			—
Other, net	(245		)		(11		)	(324		)	(308		)
Total other (income) expense, net	$	548			$	(998	)	$	(1,176	)	$	(508	)

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Segment Reporting Level 1 (Notes)

9 Months Ended

Sep. 30, 2011

Segment Reporting [Abstract]

Segment Reporting Disclosure [Text Block]

SEGMENT REPORTING

We operate our business in three reportable segments:  (1) Reservoir Description, (2) Production Enhancement and (3) Reservoir Management.  These business segments provide different services and utilize different technologies.

• Reservoir Description: Encompasses the characterization of petroleum reservoir rock, fluid and gas samples. We provide analytical and field services to characterize properties of crude oil and petroleum products to the oil and gas industry.

• Production Enhancement: Includes products and services relating to reservoir well completions, perforations, stimulations and production. We provide integrated services to evaluate the effectiveness of well completions and to develop solutions aimed at increasing the effectiveness of enhanced oil recovery projects.

• Reservoir Management: Combines and integrates information from reservoir description and production enhancement services to increase production and improve recovery of oil and gas from our clients' reservoirs.

Results for these business segments are presented below.  We use the same accounting policies to prepare our business segment results as are used to prepare our Consolidated Financial Statements.  We evaluate performance based on income or loss before income tax, interest and other non-operating income (expense). All interest and other non-operating income (expense) is attributable to the Corporate & Other area and is not allocated to specific business segments. Summarized financial information concerning our segments is shown in the following table (in thousands):

(Unaudited)	Reservoir Description		Production Enhancement		Reservoir Management		Corporate & Other 1			Consolidated
Three Months Ended September 30, 2011
Revenues from unaffiliated customers	$	119,853	$	97,407	$	14,084	$	—		$	231,344
Inter-segment revenues	446		232		377		(1,055		)	—
Segment operating income (loss)	28,780		30,728		3,502		554			63,564
Total assets	267,425		235,152		16,211		44,113			562,901
Capital expenditures	2,940		2,410		204		665			6,219
Depreciation and amortization	3,521		1,563		164		490			5,738
Three Months Ended September 30, 2010
Revenues from unaffiliated customers	$	106,485	$	78,992	$	13,744	$	—		$	199,221
Inter-segment revenues	441		390		319		(1,150		)	—
Segment operating income (loss)	28,014		26,260		5,535		408			60,217
Total assets	261,582		189,481		14,958		179,008			645,029
Capital expenditures	5,351		1,135		201		278			6,965
Depreciation and amortization	3,485		1,600		199		530			5,814
Nine Months Ended September 30, 2011
Revenues from unaffiliated customers	$	346,232	$	268,292	$	49,338	$	—		$	663,862
Inter-segment revenues	1,262		897		1,331		(3,490		)	—
Segment operating income (loss)	81,847		78,490		17,473		56			177,866
Total assets	267,425		235,152		16,211		44,113			562,901
Capital expenditures	10,322		5,713		595		1,573			18,203
Depreciation and amortization	10,520		4,780		513		1,561			17,374
Nine Months Ended September 30, 2010
Revenues from unaffiliated customers	$	317,106	$	227,553	$	41,801	$	—		$	586,460
Inter-segment revenues	989		1,103		1,034		(3,126		)	—
Segment operating income (loss)	78,229		73,355		14,827		(1,061		)	165,350
Total assets	261,582		189,481		14,958		179,008			645,029
Capital expenditures	15,280		2,527		458		1,396			19,661
Depreciation and amortization	10,515		4,849		523		1,447			17,334

(1) "Corporate & Other" represents those items that are not directly related to a particular segment and eliminations.

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Inventories (Notes)

9 Months Ended

Sep. 30, 2011

INVENTORIES [Abstract]

Inventory Disclosure [Text Block]

INVENTORIES

Inventories consist of the following (in thousands):

	September 30, 2011		December 31, 2010
	(Unaudited)
Finished goods	$	32,650	$	24,476
Parts and materials	16,590		6,727
Work in progress	3,296		2,776
Total inventories	$	52,536	$	33,979

We include freight costs incurred for shipping inventory to customers in the Cost of Sales line of the Consolidated Statements of Operations.

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Equity Warrants (Details) (USD $) In Millions, except Share data	9 Months Ended	3 Months Ended	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2011 WarrantSettlement1 [Member]	Sep. 30, 2011 Warrant Settlement 2 [Member]
Warrants Settled		$ 3.4	$ 6.6
Class of Warrant or Right Average Exercise Price	$ 61.14	$ 59.79	$ 59.84
Shares Issued to Settle Warrants		37,959	706,395
Warrants Settled Cash		$ 153.7	$ 219.5

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Earnings per Share Level 1 (Notes)

9 Months Ended

Sep. 30, 2011

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

EARNINGS PER SHARE

We compute basic earnings per common share by dividing net income available to common shareholders by the weighted average number of common shares outstanding during the period. Diluted earnings per common and potential common shares include additional shares in the weighted average share calculations associated with the incremental effect of dilutive employee stock options, restricted stock awards and contingently issuable shares, as determined using the treasury stock method. The

following table summarizes the calculation of weighted average common shares outstanding used in the computation of diluted earnings per share (in thousands):

	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2011	2010	2011	2010
	(Unaudited)		(Unaudited)
Weighted average basic common shares outstanding	46,606	44,736	45,930	44,741
Effect of dilutive securities:
Stock options	12	55	20	58
Contingent shares	80	38	69	37
Restricted stock and other	249	591	266	564
Senior exchangeable notes	1,083	2,030	1,144	1,735
Warrants	—	1,505	1,205	788
Weighted average diluted common and potential common shares outstanding	48,030	48,955	48,634	47,923

Included in the table above are 0 and 1,505,000 shares which were added to the share count for the three months ended September 30, 2011 and 2010, respectively, and 1,205,000 and 788,000 shares which were added to the share count for the nine months ended September 30, 2011 and 2010, respectively, because the average share price exceeded the strike price of the warrants.  These shares were included in calculating the impact to our dilutive earnings per share for the three and nine months ended September 30, 2011 and 2010.

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Recent Accounting Pronouncements Level 1 (Notes)

9 Months Ended

Sep. 30, 2011

RECENT ACCOUNTING PRONOUNCEMENTS [Abstract]

Description of New Accounting Pronouncements Not yet Adopted [Text Block]

13. RECENT ACCOUNTING PRONOUNCEMENTS

In May 2011, the FASB issued ASU 2011-04 which relates to fair value measurement (FASB ASC Topic 820), which amends current guidance to achieve common fair value measurement and disclosure requirements in U.S. GAAP and International Financial Reporting Standards. The amendments generally represent clarification of FASB ASC Topic 820, but also include instances where a particular principle or requirement for measuring fair value or disclosing information about fair value measurements has changed. This pronouncement is effective for fiscal years, and interim periods within those years, beginning after December 15, 2011. We will adopt this pronouncement for our fiscal year beginning January 1, 2012. We do not expect this pronouncement to have a material effect on our consolidated financial statements.

In June 2011, the FASB issued ASU 2011-05 which provides new guidance on the presentation of comprehensive income (FASB ASC Topic 220) in financial statements. Entities are required to present total comprehensive income either in a single, continuous statement of comprehensive income or in two separate, but consecutive, statements. Under the single-statement approach, entities must include the components of net income, a total for net income, the components of other comprehensive income and a total for comprehensive income. Under the two-statement approach, entities must report an income statement and, immediately following, a statement of other comprehensive income. Under either method, entities must display adjustments for items reclassified from other comprehensive income to net income in both net income and other comprehensive income. The provisions for this pronouncement are effective for fiscal years, and interim periods within those years, beginning after December 15, 2011, with early adoption permitted. We will adopt this pronouncement for our fiscal year beginning January 1, 2012.

In September 2011, the FASB issued ASU 2011-08 which relates to testing goodwill for impairment (FASB ASC Topic 350), which amends current guidance to simplify how entities test goodwill for impairment. The amendments permit an entity to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test described in Topic 350. Under this amendment, an entity is not required to calculate the fair value of a reporting unit unless the entity determines that it is more likely than not that its fair value is less than its carrying amount. This pronouncement is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. We will adopt this pronouncement for our fiscal year beginning January 1, 2012. We do not expect this pronouncement to have a material effect on our consolidated financial statements.

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Other (Income), net Level 1 (Notes)

9 Months Ended

Sep. 30, 2011

OTHER (INCOME), NET [Abstract]

Other Income and Other Expense Disclosure [Text Block]

OTHER (INCOME) EXPENSE, NET

The components of other (income) expense, net, were as follows (in thousands):

	Three Months Ended							Nine Months Ended
	September 30,							September 30,
	2011				2010			2011			2010
	(Unaudited)							(Unaudited)
(Gain) loss on sale of assets	$	(278	)		$	(88	)	$	(416	)	$	(80	)
Foreign exchange (gain) loss	1,522				(547		)	1,001			1,074
Interest income	(11		)		—			(96		)	(142		)
Rents and royalties	(440		)		(352		)	(1,273		)	(1,052		)
(Gain) loss on insurance recovery	—				—			(779		)	—
Legal entity realignment	—			711	—			711			—
Other, net	(245		)		(11		)	(324		)	(308		)
Total other (income) expense, net	$	548			$	(998	)	$	(1,176	)	$	(508	)

During the third quarter of 2010, an office and laboratory facility was damaged by fire, resulting in the loss of the laboratory portion of the building, as well as some of the laboratory equipment.  The final settlement was reached in the first quarter of 2011, which resulted in a gain of $0.8 million.

Foreign exchange (gain) loss by currency are summarized in the following table (in thousands):

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2011			2010			2011			2010
	(Unaudited)						(Unaudited)
Australian Dollar	$	206		$	(213	)	$	62		$	(110	)
British Pound	177			(133		)	130			283
Canadian Dollar	1,146			(102		)	603			(338		)
Euro	151			76			126			1,665
Mexican Peso	(161		)	(22		)	(19		)	72
Russian Ruble	(195		)	(18		)	(414		)	(33		)
Other currencies, net	198			(135		)	513			(465		)
Total (gain) loss	$	1,522		$	(547	)	$	1,001		$	1,074

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Pensions and Other Postretirement Benefits Fair Value Measurement (Details) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	$ 8,789	$ 8,802
Liabilities, Fair Value Disclosure	13,197	13,063
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Liabilities, Fair Value Disclosure	2,611	2,275
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	8,789	8,802
Liabilities, Fair Value Disclosure	10,586	10,788
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	0	0
Liabilities, Fair Value Disclosure	$ 0	$ 0

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Equity Level 1 (Notes)

9 Months Ended

Sep. 30, 2011

Equity [Abstract]

Stockholders' Equity Note Disclosure [Text Block]

EQUITY

During the three months ended September 30, 2011, we repurchased 30,798 of our common shares for $3.4 million. Included in this total were rights to 10,798 shares valued at $1.2 million that were surrendered to us pursuant to the terms of a stock-based compensation plan in consideration of the participants' tax burdens that may result from the issuance of common shares under that plan. During the nine months ended September 30, 2011, we repurchased 604,972 of our common shares for $55.5 million. Included in this total were rights to 40,478 shares valued at $4.1 million that were surrendered to us pursuant to the terms of a stock-based compensation plan in consideration of the participants' tax burdens that may result from the issuance of common shares under that plan. Such common shares, unless canceled, may be reissued for a variety of purposes such as future acquisitions, employee stock awards, exchange of the Exchangeable Notes, or settlement of outstanding warrants.

At the annual meeting of shareholders on May 19, 2011 the shareholders approved the cancellation of 702,106 shares of our common stock currently held as treasury stock at a cost of $40.9 million. These treasury shares were canceled on September 2, 2011, after the expiration of the waiting period required under Dutch law. In accordance with ASC 505-30-30-8, we charge the excess of the cost of the treasury stock over its par value to additional paid-in capital. If additional paid-in-capital is not sufficient for this charge, the remainder is charged directly to retained earnings.

In February, May, and August 2011, we paid a quarterly dividend of $0.25 per share of common stock.  In addition, on October 11, 2011, we declared a quarterly dividend of $0.25 per share of common stock for shareholders of record on October 21, 2011 and payable on November 22, 2011.

In 2006, we sold warrants on our common shares, which had an adjusted exercise price in the third quarter of $61.14 per share, with an initial 20-day settlement period beginning in December 2011 through January 2012.  The warrant agreement called for the net value of these warrants to be settled with Core Laboratories N.V. common shares.  During 2011, the settlement of all of the warrants was accelerated through a series of agreements with the holder of the warrants. The warrants were settled in four substantially equal 20-day tranches during May, June, August and September of 2011. In each of the four tranches, the exercise price was adjusted based on the daily volume weighted average price of our common stock. These agreements also gave us the option of settling in either cash or our common stock. During the three months ended September 30, 2011, we settled 3.4 million warrants at an average exercise price of $59.79 for $153.7 million in cash and 37,959 shares of our treasury stock. During the nine months ended September 30, 2011, we settled 6.6 million warrants at an average exercise price of $59.84 for $219.5 million in cash and 706,395 shares of our treasury stock.

The following table summarizes our changes in equity for the nine months ended September 30, 2011 (in thousands):

	Common			Additional Paid-In			Retained			Accumulated Other Comprehensive			Treasury			Non- Controlling			Total
(Unaudited)	Shares			Capital			Earnings			Income (Loss)			Stock			Interests			Equity
December 31, 2010	$	1,397		$	—		$	536,991		$	(6,207	)	$	(242,690	)	$	2,849		$	292,340
Stock options exercised	—			(1,658		)	—			—			1,953			—			295
Stock based-awards	—			6,007			(744		)	—			8,078			—			13,341
Tax benefit of stock-based awards issued	—			2,315			—			—			—			—			2,315
Repurchase of common shares	—			—			—			—			(55,495		)	—			(55,495		)
Dividends paid	—			—			(34,356		)	—			—			—			(34,356		)
Cancellation of common shares	(21		)	—			(40,894		)	—			40,915			—			—
Equity component of short-term debt	—			8,355			—			—			—			—			8,355
Exchange of Senior Exchangeable Notes	—			(8,425		)	(40,394		)	—			46,870			—			(1,949		)
Settlement of warrants	—			(6,594		)	(256,039		)	—			43,182			—			(219,451		)
Non-controlling interests contribution	—			—			—			—			—			1,193			1,193
Non-controlling interests dividends	—			—			—			—			—			(251		)	(251		)
Comprehensive income:
Amortization of deferred pension costs, net of tax	—			—			—			228			—			—			228
Net income (loss)	—			—			131,608			—			—			(123		)	131,485
Total comprehensive income																			131,713
September 30, 2011	$	1,376		$	—		$	296,172		$	(5,979	)	$	(157,187	)	$	3,668		$	138,050

Comprehensive Income

The components of comprehensive income consisted of the following (in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2011		2010		2011		2010
	(Unaudited)				(Unaudited)
Net income	$	45,109	$	38,763	$	131,485	$	105,411
Amortization of deferred pension costs, net of tax	76		86		228		257
Total comprehensive income	$	45,185	$	38,849	$	131,713	$	105,668

Accumulated other comprehensive income (loss) consisted of the following (in thousands):

	September 30, 2011			December 31, 2010
	(Unaudited)
Prior service cost	$	(764	)	$	(853	)
Transition asset	276			324
Unrecognized net actuarial loss	(5,491		)	(5,678		)
Total accumulated other comprehensive income (loss)	$	(5,979	)	$	(6,207	)

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Statement of Cash Flows Statement (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Net income	$ 131,485	$ 105,411
Net (recovery) provision for doubtful accounts	(105)	787
Provisions for inventory obsolescence	483	513
Equity in earnings of affiliates	(190)	(342)
Stock-based compensation	13,341	6,016
Depreciation and amortization	17,374	17,334
Non-cash interest expense	5,841	11,590
Gain on sale of assets	(416)	(80)
Gain on insurance recovery	(779)	0
Loss on exchange of Senior Exchangeable Notes	870	675
Realization of pension obligation	228	257
Increase in value of life insurance policies	(93)	(575)
Deferred income taxes	(9,928)	(5,315)
Accounts receivable	707	(8,142)
Inventories	(14,204)	1,134
Prepaid expenses and other current assets	703	25,185
Other assets	1,692	(436)
Accounts payable	1,370	5,500
Accrued expenses	(7,393)	13,304
Other long-term liabilities	5,843	(3,687)
Net cash provided by operating activities	146,829	169,129
Capital expenditures	(18,203)	(19,661)
Payments to Acquire Intangible Assets	(177)	(180)
Business Acquisitions	(21,000)	(9,000)
Proceeds from sale of assets	683	406
Proceeds from insurance recovery	884	0
Premiums on life insurance	(1,661)	(1,357)
Net cash used in investing activities	(39,474)	(29,792)
Repayment of debt borrowings	(229,467)	24,366
Repayment of debt borrowings	(229,467)	(24,366)
Proceeds from debt borrowings	313,000	0
Proceeds from Stock Options Exercised	295	336
Excess Tax Benefit from Share-based Compensation, Financing Activities	2,315	798
Payments of Debt Issuance Costs	(1,997)	0
Settlement of Warrants	(219,451)	0
Non-controlling interest - contributions	1,193	156
Payments of Dividends, Noncontrolling Interest	(251)	(181)
Payments of Dividends	(34,356)	(37,095)
Payments for Repurchase of Common Stock	(55,495)	(92,077)
Net cash used in financing activities	(224,214)	(152,429)
NET CHANGE IN CASH AND CASH EQUIVALENTS	(116,859)	(13,092)
CASH AND CASH EQUIVALENTS, beginning of period	$ 133,880	$ 181,045

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Goodwill and Intangibles

9 Months Ended

Sep. 30, 2010

GOODWILL AND INTANGIBLES [Abstract]

Intangible Assets Disclosure [Text Block]

GOODWILL AND INTANGIBLES

We account for intangible assets with indefinite lives, including goodwill, in accordance with the applicable accounting guidance, which requires us to evaluate these assets for impairment annually, or more frequently if an indication of impairment has occurred.  Based upon our most recent evaluation, we determined that goodwill is not impaired.  We amortize intangible assets with a defined term on a straight-line basis over their respective useful lives.

In September 2011, we acquired a business providing additional manufacturing capacity for our Canadian operations for $21 million in cash. We have accounted for this acquisition by allocating the purchase price to the net assets acquired based on their estimated fair values at the date of acquisition, resulting in an increase to goodwill of $8.1 million. The acquisition was recorded in the Production Enhancement business segment. The purchase price allocation is preliminary and based on information currently available to us, and is therefore subject to change when we obtain final asset and liability valuations.

In 2010, we acquired fracture diagnostics assets for $9 million in cash. The acquisition was recorded in the Production Enhancement business segment and resulted in an increase of $5.6 million in goodwill and an increase of $3.2 million in intangible assets.

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Segment Reporting Level 4 (Details) (USD $) In Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010
Segment Reporting Information [Line Items]
TOTAL ASSETS	$ 562,901	$ 645,029	$ 562,901	$ 645,029	$ 636,042
Capital expenditures	6,219	6,965	18,203	19,661
Depreciation and amortization	5,738	5,814	17,374	17,334
Total Revenue	231,344	199,221	663,862	586,460
Segment Reporting Information, Intersegment Revenue	0	0	0	0
OPERATING INCOME	63,564	60,217	177,866	165,350
Operating Segment Reservoir Description [Member]
Segment Reporting Information [Line Items]
TOTAL ASSETS	267,425	261,582	267,425	261,582
Capital expenditures	2,940	5,351	10,322	15,280
Depreciation and amortization	3,521	3,485	10,520	10,515
Total Revenue	119,853	106,485	346,232	317,106
Segment Reporting Information, Intersegment Revenue	446	441	1,262	989
OPERATING INCOME	28,780	28,014	81,847	78,229
Operating Segment Production Enhancement [Member]
Segment Reporting Information [Line Items]
TOTAL ASSETS	235,152	189,481	235,152	189,481
Capital expenditures	2,410	1,135	5,713	2,527
Depreciation and amortization	1,563	1,600	4,780	4,849
Total Revenue	97,407	78,992	268,292	227,553
Segment Reporting Information, Intersegment Revenue	232	390	897	1,103
OPERATING INCOME	30,728	26,260	78,490	73,355
Operating Segment Reservoir Management [Member]
Segment Reporting Information [Line Items]
TOTAL ASSETS	16,211	14,958	16,211	14,958
Capital expenditures	204	201	595	458
Depreciation and amortization	164	199	513	523
Total Revenue	14,084	13,744	49,338	41,801
Segment Reporting Information, Intersegment Revenue	377	319	1,331	1,034
OPERATING INCOME	3,502	5,535	17,473	14,827
Operating Segment Corporate And Other [Member]
Segment Reporting Information [Line Items]
TOTAL ASSETS	44,113	179,008	44,113	179,008
Capital expenditures	665	278	1,573	1,396
Depreciation and amortization	490	530	1,561	1,447
Total Revenue	0	0	0	0
Segment Reporting Information, Intersegment Revenue	(1,055)	(1,150)	(3,490)	(3,126)
OPERATING INCOME	$ 554	$ 408	$ 56	$ (1,061)

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Pensions and Other Postretirement Benefits Level 4 (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer			$ 1,900,000
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	340,000	294,000	1,027,000	921,000
Defined Benefit Plan, Interest Cost	438,000	341,000	1,324,000	1,069,000
Defined Benefit Plan, Expected Return on Plan Assets	(204,000)	(108,000)	(616,000)	(338,000)
Defined Benefit Plan, Amortization of Transition Obligations (Assets)	(21,000)	(22,000)	(65,000)	(66,000)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	39,000	40,000	119,000	120,000
Defined Benefit Plan, Amortization of Gains (Losses)	84,000	94,000	252,000	283,000
Defined Benefit Plan, Net Periodic Benefit Cost	$ 676,000	$ 639,000	$ 2,041,000	$ 1,989,000

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Debt Level 1 (Notes)

9 Months Ended

Sep. 30, 2011

Debt and Capital Lease Obligations [Abstract]

Debt Disclosure [Text Block]

DEBT AND CAPITAL LEASE OBLIGATIONS

Debt is summarized in the following table (in thousands):

	September 30, 2011			December 31, 2010
	(Unaudited)
Senior exchangeable notes	$	84,940		$	156,407
Discount on senior exchangeable notes	(504		)	(8,864		)
Net senior exchangeable notes	84,436			147,543
Senior notes	150,000			—
Credit facility	5,000			—
Capital lease obligations	150			—
Total debt	239,586			147,543
Less - current maturities of long-term debt and capital lease obligations	84,493			147,543
Long-term debt and capital lease obligations, net	$	155,093		$	—

In 2006, Core Laboratories LP, an entity 100% indirectly owned by Core Laboratories N.V., issued $300 million aggregate principal amount of Senior Exchangeable Notes (the "Exchangeable Notes") which are fully and unconditionally guaranteed by Core Laboratories N.V. and mature on October 31, 2011.  The Exchangeable Notes bear interest at a rate of 0.25% per year paid on a semi-annual basis.

With the additional amortization of the discount on the Exchangeable Notes, the effective interest rate is 7.48% for the three and nine month period ended September 30, 2011, which resulted in additional non-cash interest expense of $1.5 million and $3.8 million for the three months ended September 30, 2011 and 2010, respectively, and $5.5 million and $11.5 million for the nine months ended September 30, 2011 and 2010, respectively.  Each Exchangeable Note carries a $1,000 principal amount and is exchangeable into shares of Core Laboratories N.V. common stock under certain circumstances at an exchange price of $45.41 per share, or 22.0221 shares per Exchangeable Note.  Upon exchange, holders will receive cash for the principal amount plus any amount related to fractional shares, and any excess exchange value will be delivered in whole shares of Core Laboratories N.V. common stock at the completion of the valuation period as defined under our Exchangeable Note Indenture agreement.  At September 30, 2011, the Exchangeable Notes were trading at 208% of their face value which is equivalent to $91.7 million of value in excess of the aggregate principal amount. At December 31, 2010, the Exchangeable Notes were trading at 197% of their face value which was equivalent to $151.7 million of value in excess of the aggregate principal amount.  There were 84,940 and 156,407 Exchangeable Notes outstanding at September 30, 2011 and December 31, 2010, respectively.

Under the terms of the Exchangeable Notes, defined criteria were met which allowed the Exchangeable Notes to be early exchanged during the third quarter of 2011, as it was during the second quarter of 2011, and as a result, the equity component of the Exchangeable Notes at September 30, 2011 was classified as temporary equity.  This balance combined with the debt amount reflects the amount that could result in cash settlement upon exchange.  We received eight requests to exchange 6,990 Exchangeable Notes which were settled during the third quarter for $7.0 million in cash and 89,316 shares of our common stock, all of which were treasury shares, resulting in a loss of $31 thousand.  We also received five requests during the third quarter to exchange 16,900 Exchangeable Notes which we will settle during the fourth quarter upon completion of the requisite holding period per the Note Indenture agreement.

In September 2011, we issued two series of senior notes with an aggregate principal amount of $150 million ("Senior Notes") in a private placement transaction. Series A consists of $75 million in aggregate principal amount of notes that bear interest at a fixed rate of 4.01% and are due in full on September 30, 2021. Series B consists of $75 million in aggregate principal amount of notes that bear interest at a fixed rate of 4.11% and are due in full on September 30, 2023. Interest on each series of the Senior Notes is payable semi-annually on March 30 and September 30.

On September 28, 2011, we entered into an agreement to amend our revolving credit facility (the "Credit Facility") that allowed for an aggregate borrowing capacity of $300 million at September 30, 2011. The Credit Facility also provided an option to increase the commitment under the Credit Facility to $350 million, if certain conditions were met.  The Credit Facility bears interest at variable rates from LIBOR plus 1.50% to a maximum of LIBOR plus 2.25%.  Any outstanding balance under the Credit Facility is due September 28, 2016 when the Credit Facility matures.   Interest payment terms are variable depending upon the specific type of borrowing under this facility. Our available capacity is reduced by outstanding letters of credit and performance guarantees and bonds totaling $15.6 million at September 30, 2011 relating to certain projects in progress.  Our available borrowing capacity under the Credit Facility at September 30, 2011 was $279.4 million.  As of September 30, 2011, we had $11.1 million of outstanding letters of credit and performance guarantees and bonds in addition to those under the Credit Facility.

The terms of the Credit Facility and the Senior Notes require us to meet certain financial and operational covenants. We believe that we were in compliance with all such covenants at September 30, 2011.  All of our material, wholly owned subsidiaries are guarantors or co-borrowers under the Credit Facility.

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Condensed Consolidating Financial Information Income Statement (Details) (USD $) In Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Condensed Financial Statements, Captions [Line Items]
Revenues	$ 231,344	$ 199,221	$ 663,862	$ 586,460
Revenue from Related Parties	0	0	0	0
Earnings (loss) from consolidated affiliates	0	0	0	0
Total Revenue	231,344	199,221	663,862	586,460
Costs of Services and Goods Sold Excluding Depreciation	150,312	125,772	439,335	380,277
Net income	45,109	38,763	131,485	105,411
Loss on exchange of Senior Exchangeable Notes	31	675	870	675
General and Administrative Expense, Excluding Depreciation	11,182	8,416	30,463	24,007
Depreciation and amortization	5,738	5,814	17,374	17,334
Net Income (Loss) Attributable to Non-controlling Interest	242	209	(123)	436
Other (income), net	548	(998)	(1,176)	(508)
OPERATING INCOME	63,564	60,217	177,866	165,350
Interest Expense	3,825	4,015	8,684	12,188
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	59,708	55,527	168,312	152,487
Income Tax Expense (Benefit)	14,599	16,764	36,827	47,076
Net income attributable to Core Laboratories N.V.	44,867	38,554	131,608	104,975
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues	0	0	0	0
Revenue from Related Parties	486	356	1,255	1,023
Earnings (loss) from consolidated affiliates	42,418	42,764	129,126	115,662
Total Revenue	42,904	43,120	130,381	116,685
Costs of Services and Goods Sold Excluding Depreciation	421	346	979	1,058
Net income	44,867	38,554	131,608	104,975
Loss on exchange of Senior Exchangeable Notes	0	0	0	0
General and Administrative Expense, Excluding Depreciation	1,451	1,416	6,066	5,730
Depreciation and amortization	0	0	0	0
Net Income (Loss) Attributable to Non-controlling Interest	0	0	0	0
Other (income), net	(1,088)	1,178	(145)	2,035
OPERATING INCOME	42,120	40,180	123,481	107,862
Interest Expense	0	0	0	0
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	42,120	40,180	123,481	107,862
Income Tax Expense (Benefit)	(2,747)	1,626	(8,127)	2,887
Net income attributable to Core Laboratories N.V.	44,867	38,554	131,608	104,975
Consolidation, Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues	0	0	0	0
Revenue from Related Parties	(44,253)	(44,534)	(127,611)	(128,367)
Earnings (loss) from consolidated affiliates	(563,785)	(112,317)	(721,296)	(401,719)
Total Revenue	(608,038)	(156,851)	(848,907)	(530,086)
Costs of Services and Goods Sold Excluding Depreciation	0	0	0	0
Net income	(565,862)	(104,564)	(662,963)	(414,238)
Loss on exchange of Senior Exchangeable Notes	0	0	0	0
General and Administrative Expense, Excluding Depreciation	0	0	0	0
Depreciation and amortization	0	0	0	0
Net Income (Loss) Attributable to Non-controlling Interest	0	0	0	0
Other (income), net	(33,939)	(32,291)	(99,557)	(95,852)
OPERATING INCOME	(574,099)	(124,560)	(749,350)	(434,234)
Interest Expense	(8,237)	(19,996)	(86,387)	(19,996)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	(565,862)	(104,564)	(662,963)	(414,238)
Income Tax Expense (Benefit)	0	0	0	0
Net income attributable to Core Laboratories N.V.	(565,862)	(104,564)	(662,963)	(414,238)
Subsidiaries Issuer [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues	55,777	48,856	156,512	142,403
Revenue from Related Parties	6,091	6,230	17,786	18,436
Earnings (loss) from consolidated affiliates	0	0	0	0
Total Revenue	61,868	55,086	174,298	160,839
Costs of Services and Goods Sold Excluding Depreciation	28,501	24,928	80,498	75,149
Net income	1,229	(17,445)	(57,669)	(938)
Loss on exchange of Senior Exchangeable Notes	31	675	870	675
General and Administrative Expense, Excluding Depreciation	9,706	6,997	24,360	18,267
Depreciation and amortization	1,550	1,610	4,779	4,722
Net Income (Loss) Attributable to Non-controlling Interest	0	0	0	0
Other (income), net	2,972	3,850	9,581	8,852
OPERATING INCOME	19,139	17,701	55,080	53,849
Interest Expense	12,062	24,008	95,071	32,175
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	7,046	(6,982)	(40,861)	20,999
Income Tax Expense (Benefit)	5,817	10,463	16,808	21,937
Net income attributable to Core Laboratories N.V.	1,229	(17,445)	(57,669)	(938)
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues	175,567	150,365	507,350	444,057
Revenue from Related Parties	37,676	37,948	108,570	108,908
Earnings (loss) from consolidated affiliates	521,367	69,553	592,170	286,057
Total Revenue	734,610	257,866	1,208,090	839,022
Costs of Services and Goods Sold Excluding Depreciation	121,390	100,498	357,858	304,070
Net income	564,875	122,218	720,509	415,612
Loss on exchange of Senior Exchangeable Notes	0	0	0	0
General and Administrative Expense, Excluding Depreciation	25	3	37	10
Depreciation and amortization	4,188	4,204	12,595	12,612
Net Income (Loss) Attributable to Non-controlling Interest	242	209	(123)	436
Other (income), net	32,603	26,265	88,945	84,457
OPERATING INCOME	576,404	126,896	748,655	437,873
Interest Expense	0	3	0	9
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	576,404	126,893	748,655	437,864
Income Tax Expense (Benefit)	11,529	4,675	28,146	22,252
Net income attributable to Core Laboratories N.V.	$ 564,633	$ 122,009	$ 720,632	$ 415,176

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Inventories Inventories (Details) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Inventory, Finished Goods	$ 32,650	$ 24,476
Inventory, Raw Materials and Purchased Parts, Net of Reserves	16,590	6,727
Inventory, Work in Process	3,296	2,776
Inventory, Net	$ 52,536	$ 33,979

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Equity Level 4 (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010
Common Stock, Value, Issued	$ 1,376,000		$ 1,376,000		$ 1,397,000
Stock Issued During Period, Value, Stock Options Exercised			295,000
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures			13,341,000
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation			2,315,000
Stock Repurchased During Period, Value			(55,495,000)
Treasury Stock, Shares, Acquired	30,798		604,972
Dividends			(34,356,000)
Stock Repurchased and Retired During Period, Value			0
Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt, Subsequent Adjustments			8,355,000
Stock Issued During Period, Value, Conversion of Convertible Securities			(1,949,000)
Settlement of Warrants Cash and Accrued			(219,451,000)
Noncontrolling Interest, Increase from Equity Issuance or Sale of Parent Equity Interest			1,193,000
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders			(251,000)
Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost Recognized in Net Periodic Pension Cost, Net of Tax	76,000	86,000	228,000	257,000
Net income	45,109,000	38,763,000	131,485,000	105,411,000
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	45,185,000	38,849,000	131,713,000	105,668,000
Treasury Stock, Value, Acquired, Cost Method	3,400,000		55,500,000
TreasurySharesAcquiredTaxBurden	10,798		40,478
TreasurySharesAcquiredValueTaxBurden	1,200,000		4,100,000
Treasury Stock, Shares, Retired			702,106
Treasury Stock, Retired, Cost Method, Amount			40,900,000
Cash dividends per share	$ 0.25	$ 0.71	$ 0.75	$ 0.83
Common Stock, Dividends, Per Share, Declared	$ 0.25
Retained Earnings (Accumulated Deficit)	296,172,000		296,172,000		536,991,000
Accumulated Other Comprehensive Income (Loss), Net of Tax	(5,979,000)		(5,979,000)		(6,207,000)
Treasury Stock, Value	157,187,000		157,187,000		242,690,000
Stockholders' Equity Attributable to Noncontrolling Interest	3,668,000		3,668,000		2,849,000
TOTAL EQUITY	138,050,000		138,050,000		292,340,000
WarrantSettlement1 [Member]
Shares Issued to Settle Warrants	37,959
Common Stock [Member]
Common Stock, Value, Issued	1,376,000		1,376,000		1,397,000
Stock Issued During Period, Value, Stock Options Exercised			0
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures			0
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation			0
Stock Repurchased During Period, Value			0
Dividends			0
Stock Repurchased and Retired During Period, Value			(21,000)
Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt, Subsequent Adjustments			0
Stock Issued During Period, Value, Conversion of Convertible Securities			0
Settlement of Warrants Cash and Accrued			0
Noncontrolling Interest, Increase from Equity Issuance or Sale of Parent Equity Interest			0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders			0
Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost Recognized in Net Periodic Pension Cost, Net of Tax			0
Net income			0
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Additional Paid-in Capital [Member]
Additional Paid in Capital	0		0		0
Stock Issued During Period, Value, Stock Options Exercised			(1,658,000)
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures			6,007,000
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation			2,315,000
Stock Repurchased During Period, Value			0
Dividends			0
Stock Repurchased and Retired During Period, Value			0
Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt, Subsequent Adjustments			8,355,000
Stock Issued During Period, Value, Conversion of Convertible Securities			(8,425,000)
Settlement of Warrants Cash and Accrued			(6,594,000)
Noncontrolling Interest, Increase from Equity Issuance or Sale of Parent Equity Interest			0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders			0
Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost Recognized in Net Periodic Pension Cost, Net of Tax			0
Net income			0
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Retained Earnings [Member]
Stock Issued During Period, Value, Stock Options Exercised			0
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures			(744,000)
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation			0
Stock Repurchased During Period, Value			0
Dividends			(34,356,000)
Stock Repurchased and Retired During Period, Value			(40,894,000)
Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt, Subsequent Adjustments			0
Stock Issued During Period, Value, Conversion of Convertible Securities			(40,394,000)
Settlement of Warrants Cash and Accrued			(256,039,000)
Noncontrolling Interest, Increase from Equity Issuance or Sale of Parent Equity Interest			0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders			0
Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost Recognized in Net Periodic Pension Cost, Net of Tax			0
Net income			131,608,000
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Retained Earnings (Accumulated Deficit)	296,172,000		296,172,000		536,991,000
Accumulated Other Comprehensive Income (Loss) [Member]
Stock Issued During Period, Value, Stock Options Exercised			0
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures			0
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation			0
Stock Repurchased During Period, Value			0
Dividends			0
Stock Repurchased and Retired During Period, Value			0
Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt, Subsequent Adjustments			0
Stock Issued During Period, Value, Conversion of Convertible Securities			0
Settlement of Warrants Cash and Accrued			0
Noncontrolling Interest, Increase from Equity Issuance or Sale of Parent Equity Interest			0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders			0
Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost Recognized in Net Periodic Pension Cost, Net of Tax			228,000
Net income			0
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss), Net of Tax	(5,979,000)		(5,979,000)		(6,207,000)
Treasury Stock [Member]
Stock Issued During Period, Value, Stock Options Exercised			1,953,000
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures			8,078,000
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation			0
Stock Repurchased During Period, Value			(55,495,000)
Dividends			0
Stock Repurchased and Retired During Period, Value			40,915,000
Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt, Subsequent Adjustments			0
Stock Issued During Period, Value, Conversion of Convertible Securities			46,870,000
Settlement of Warrants Cash and Accrued			43,182,000
Noncontrolling Interest, Increase from Equity Issuance or Sale of Parent Equity Interest			0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders			0
Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost Recognized in Net Periodic Pension Cost, Net of Tax			0
Net income			0
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Treasury Stock, Value	(157,187,000)		(157,187,000)		(242,690,000)
Noncontrolling Interest [Member]
Stock Issued During Period, Value, Stock Options Exercised			0
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures			0
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation			0
Stock Repurchased During Period, Value			0
Dividends			0
Stock Repurchased and Retired During Period, Value			0
Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt, Subsequent Adjustments			0
Stock Issued During Period, Value, Conversion of Convertible Securities			0
Settlement of Warrants Cash and Accrued			0
Noncontrolling Interest, Increase from Equity Issuance or Sale of Parent Equity Interest			1,193,000
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders			(251,000)
Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost Recognized in Net Periodic Pension Cost, Net of Tax			0
Net income			(123,000)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Stockholders' Equity Attributable to Noncontrolling Interest	$ 3,668,000		$ 3,668,000		$ 2,849,000

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Condensed Consolidating Financial Information Level 4 (Details) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010	Sep. 30, 2010	Dec. 31, 2009
Condensed Financial Statements, Captions [Line Items]
Cash and Cash Equivalents, at Carrying Value	$ 17,021	$ 133,880	$ 167,953	$ 181,045
Accounts Receivable, Net	157,594	154,726
Inventory, Net	52,536	33,979
Prepaid Expense and Other Assets	27,272	26,735
TOTAL CURRENT ASSETS	254,423	349,320
Property, Plant and Equipment, Net	110,025	104,223
Intangible Assets And Goodwill	170,295	162,877
Due from Affiliates	0	0
Equity Method Investments	884	695
Deferred Tax Assets, Net, Noncurrent	6,586	0
Other Assets Noncurrent less Investments	20,688	18,927
TOTAL ASSETS	562,901	636,042	645,029
Accounts Payable, Current	46,776	44,710
Convertible Debt, Current	84,493	147,543
Accrued Liabilities, Current	78,850	87,100
TOTAL CURRENT LIABILITIES	210,119	279,353
Convertible Debt, Noncurrent	155,093
Deferred Compensation Liability, Classified, Noncurrent	22,307	21,241
Deferred Tax Liabilities, Noncurrent	0	2,198
Due to Affiliate, Noncurrent	0	0
Other Liabilities, Noncurrent	36,823	32,046
Temporary Equity, Redemption Value	509	8,864
Total Core Laboratories N.V. shareholders' equity	134,382	289,491
Stockholders' Equity Attributable to Noncontrolling Interest	3,668	2,849
TOTAL EQUITY	138,050	292,340
TOTAL LIABILITIES AND EQUITY	562,901	636,042
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and Cash Equivalents, at Carrying Value	1,273	11,162	9,227	73,998
Accounts Receivable, Net	231	10
Inventory, Net	0	0
Prepaid Expense and Other Assets	7,966	5,641
TOTAL CURRENT ASSETS	9,470	16,813
Property, Plant and Equipment, Net	0	0
Intangible Assets And Goodwill	37,318	46,986
Due from Affiliates	21,868	21,749
Equity Method Investments	599,191	553,693
Deferred Tax Assets, Net, Noncurrent	2,167	2,810
Other Assets Noncurrent less Investments	2,823	3,209
TOTAL ASSETS	672,837	645,260
Accounts Payable, Current	1,014	336
Convertible Debt, Current	0	0
Accrued Liabilities, Current	2,802	2,291
TOTAL CURRENT LIABILITIES	3,816	2,627
Convertible Debt, Noncurrent	0
Deferred Compensation Liability, Classified, Noncurrent	6,635	6,159
Deferred Tax Liabilities, Noncurrent	0	0
Due to Affiliate, Noncurrent	518,544	333,651
Other Liabilities, Noncurrent	9,460	13,332
Temporary Equity, Redemption Value	0	0
Total Core Laboratories N.V. shareholders' equity	134,382	289,491
Stockholders' Equity Attributable to Noncontrolling Interest	0	0
TOTAL EQUITY	134,382	289,491
TOTAL LIABILITIES AND EQUITY	672,837	645,260
Subsidiaries Issuer [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and Cash Equivalents, at Carrying Value	7,986	88,612	145,029	95,048
Accounts Receivable, Net	35,914	33,637
Inventory, Net	5,461	4,127
Prepaid Expense and Other Assets	5,413	9,437
TOTAL CURRENT ASSETS	54,774	135,813
Property, Plant and Equipment, Net	21,014	21,139
Intangible Assets And Goodwill	15,244	15,838
Due from Affiliates	143,464	164,945
Equity Method Investments	0	0
Deferred Tax Assets, Net, Noncurrent	2,453	0
Other Assets Noncurrent less Investments	11,936	13,099
TOTAL ASSETS	248,885	350,834
Accounts Payable, Current	6,849	5,144
Convertible Debt, Current	84,436	147,543
Accrued Liabilities, Current	28,820	29,250
TOTAL CURRENT LIABILITIES	120,105	181,937
Convertible Debt, Noncurrent	0
Deferred Compensation Liability, Classified, Noncurrent	15,566	14,981
Deferred Tax Liabilities, Noncurrent	0	11,444
Due to Affiliate, Noncurrent	65,908	0
Other Liabilities, Noncurrent	2,954	1,099
Temporary Equity, Redemption Value	509	8,864
Total Core Laboratories N.V. shareholders' equity	43,843	132,509
Stockholders' Equity Attributable to Noncontrolling Interest	0	0
TOTAL EQUITY	43,843	132,509
TOTAL LIABILITIES AND EQUITY	248,885	350,834
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and Cash Equivalents, at Carrying Value	7,762	34,106	13,697	11,999
Accounts Receivable, Net	121,449	121,079
Inventory, Net	47,075	29,852
Prepaid Expense and Other Assets	13,893	11,657
TOTAL CURRENT ASSETS	190,179	196,694
Property, Plant and Equipment, Net	89,011	83,084
Intangible Assets And Goodwill	117,733	100,053
Due from Affiliates	681,761	242,754
Equity Method Investments	1,937,663	1,567,416
Deferred Tax Assets, Net, Noncurrent	1,966	6,436
Other Assets Noncurrent less Investments	5,929	2,619
TOTAL ASSETS	3,024,242	2,199,056
Accounts Payable, Current	38,913	39,230
Convertible Debt, Current	57	0
Accrued Liabilities, Current	47,228	55,559
TOTAL CURRENT LIABILITIES	86,198	94,789
Convertible Debt, Noncurrent	155,093
Deferred Compensation Liability, Classified, Noncurrent	106	101
Deferred Tax Liabilities, Noncurrent	0	0
Due to Affiliate, Noncurrent	262,641	95,797
Other Liabilities, Noncurrent	24,409	17,615
Temporary Equity, Redemption Value	0	0
Total Core Laboratories N.V. shareholders' equity	2,492,127	1,987,905
Stockholders' Equity Attributable to Noncontrolling Interest	3,668	2,849
TOTAL EQUITY	2,495,795	1,990,754
TOTAL LIABILITIES AND EQUITY	3,024,242	2,199,056
Consolidation, Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and Cash Equivalents, at Carrying Value	0	0	0	0
Accounts Receivable, Net	0	0
Inventory, Net	0	0
Prepaid Expense and Other Assets	0	0
TOTAL CURRENT ASSETS	0	0
Property, Plant and Equipment, Net	0	0
Intangible Assets And Goodwill	0	0
Due from Affiliates	(847,093)	(429,448)
Equity Method Investments	(2,535,970)	(2,120,414)
Deferred Tax Assets, Net, Noncurrent	0	(9,246)
Other Assets Noncurrent less Investments	0	0
TOTAL ASSETS	(3,383,063)	(2,559,108)
Accounts Payable, Current	0	0
Convertible Debt, Current	0	0
Accrued Liabilities, Current	0	0
TOTAL CURRENT LIABILITIES	0	0
Convertible Debt, Noncurrent	0
Deferred Compensation Liability, Classified, Noncurrent	0	0
Deferred Tax Liabilities, Noncurrent	0	(9,246)
Due to Affiliate, Noncurrent	(847,093)	(429,448)
Other Liabilities, Noncurrent	0	0
Temporary Equity, Redemption Value	0	0
Total Core Laboratories N.V. shareholders' equity	(2,535,970)	(2,120,414)
Stockholders' Equity Attributable to Noncontrolling Interest	0	0
TOTAL EQUITY	(2,535,970)	(2,120,414)
TOTAL LIABILITIES AND EQUITY	$ (3,383,063)	$ (2,559,108)

XML

Debt Level 4 (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010
Debt Instrument [Line Items]
Loss on exchange of Senior Exchangeable Notes	$ (31,000)	$ (675,000)	$ (870,000)	$ (675,000)
Line of Credit Facility, Current Borrowing Capacity	300,000,000		300,000,000
Line of Credit Facility, Maximum Borrowing Capacity	350,000,000		350,000,000
Performance bonds under credit facility	15,600,000		15,600,000
Line of Credit Facility, Remaining Borrowing Capacity	279,400,000		279,400,000
Performance Bonds	11,100,000		11,100,000
Long-term Debt	239,586,000	147,543,000	239,586,000	147,543,000
Long-term Debt, Excluding Current Maturities	155,093,000	0	155,093,000	0
Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.50%		1.50%
Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	2.25%		2.25%
Debt Conversion Requested 2 [Member] | Convertible Debt [Member]
Debt Instrument [Line Items]
NumberOfRequestsForConversionOfDebt		5
NumberOfDebtInstrumentsConverted			16,900
Line of Credit [Member]
Debt Instrument [Line Items]
Long-term Debt	5,000,000	0	5,000,000	0
Convertible Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	300,000,000		300,000,000
Debt Instrument, Maturity Date			Oct. 31, 2011
Debt Instrument, Interest Rate, Stated Percentage	0.25%		0.25%
Debt Instrument, Interest Rate, Effective Percentage	7.48%		7.48%
Debt Instrument, Unamortized Discount	(504,000)		(504,000)		(8,864,000)
Long-term Debt, Gross	84,940,000		84,940,000		156,407,000
Amortization of Debt Discount (Premium)	1,500,000	3,800,000	5,500,000	11,500,000
FaceValueOfDebtPerInstrument			1,000
Debt Instrument, Convertible, Conversion Price	$ 45.41		$ 45.41
Debt Instrument, Convertible, Number of Equity Instruments			22.0221
PercentNotesTradingAboveFaceValue	208.00%		208.00%		197.00%
VarianceTradeValueToFaceValue	91,700,000		91,700,000		151,700,000
Number of Debt Instruments Outstanding	84,940		84,940		156,407
NumberOfRequestsForConversionOfDebt			8
NumberOfDebtInstrumentsConverted			6,990
Debt Conversion, Converted Instrument, Amount			7,000,000
Debt Conversion, Converted Instrument, Shares Issued			89,316
Loss on exchange of Senior Exchangeable Notes			0
Long-term Debt	84,436,000		84,436,000		147,543,000
Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	150,000,000		150,000,000
Long-term Debt	150,000,000	0	150,000,000	0
senior notes series a [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	75,000,000		75,000,000
Debt Instrument, Maturity Date			Sep. 30, 2021
Debt Instrument, Interest Rate, Effective Percentage	4.01%		4.01%
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Long-term Debt	150,000	0	150,000	0
Short-term Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, Current Maturities	84,493,000	147,543,000	84,493,000	147,543,000
Senior Notes Series B [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 75,000,000		$ 75,000,000
Debt Instrument, Maturity Date			Sep. 30, 2023
Debt Instrument, Interest Rate, Effective Percentage	4.11%		4.11%

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Condensed Consolidating Financial Information Level 1 (Notes)

9 Months Ended

Sep. 30, 2011

CONDENSED CONSOLIDATING FINANCIAL INFORMATION [Abstract]

Schedule of Condensed Financial Statement [Text Block]

CONDENSED CONSOLIDATING FINANCIAL INFORMATION

Core Laboratories N.V. has fully and unconditionally guaranteed all of the Exchangeable Notes issued by Core Laboratories LP in 2006. Core Laboratories LP is an entity 100% indirectly owned by Core Laboratories N.V.

The following condensed consolidating financial information is included so that separate financial statements of Core Laboratories LP are not required to be filed with the U.S. Securities and Exchange Commission (the "SEC"). The condensed consolidating financial statements present investments in both consolidated and unconsolidated affiliates using the equity method of accounting.

The following condensed consolidating financial information presents: balance sheets as of September 30, 2011 and December 31, 2010, statements of operations for each of the three and nine months ended September 30, 2011 and 2010 and the statements of cash flows for each of the nine months ended September 30, 2011 and 2010 of (a) Core Laboratories N.V., parent/guarantor, (b) Core Laboratories LP, issuer of public debt securities guaranteed by Core Laboratories N.V., (c) the non-guarantor subsidiaries, (d) consolidating adjustments necessary to consolidate Core Laboratories N.V. and its subsidiaries and (e) Core Laboratories N.V. on a consolidated basis.

Condensed Consolidating Balance Sheets (Unaudited)
(In thousands)	September 30, 2011
	Core Laboratories N.V. (Parent/ Guarantor)		Core Laboratories LP (Issuer)		Other Subsidiaries (Non- Guarantors)		Consolidating Adjustments			Consolidated Total
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	1,273	$	7,986	$	7,762	$	—		$	17,021
Accounts receivable, net	231		35,914		121,449		—			157,594
Inventories	—		5,461		47,075		—			52,536
Prepaid expenses and other current assets	7,966		5,413		13,893		—			27,272
Total current assets	9,470		54,774		190,179		—			254,423
PROPERTY, PLANT AND EQUIPMENT, net	—		21,014		89,011		—			110,025
GOODWILL AND INTANGIBLES, net	37,318		15,244		117,733		—			170,295
INTERCOMPANY RECEIVABLES	21,868		143,464		681,761		(847,093		)	—
INVESTMENT IN AFFILIATES	599,191		—		1,937,663		(2,535,970		)	884
DEFERRED TAX ASSETS, net	2,167		2,453		1,966		—			6,586
OTHER ASSETS	2,823		11,936		5,929		—			20,688
TOTAL ASSETS	$	672,837	$	248,885	$	3,024,242	$	(3,383,063	)	$	562,901
LIABILITIES AND EQUITY
CURRENT LIABILITIES:
Accounts payable	$	1,014	$	6,849	$	38,913	$	—		$	46,776
Short-term debt and lease obligations	—		84,436		57		—			84,493
Other accrued expenses	2,802		28,820		47,228		—			78,850
Total current liabilities	3,816		120,105		86,198		—			210,119
LONG-TERM DEBT & LEASE OBLIGATIONS	—		—		155,093		—			155,093
DEFERRED COMPENSATION	6,635		15,566		106		—			22,307
DEFERRED TAX LIABILITIES, net	—		—		—		—			—
INTERCOMPANY PAYABLES	518,544		65,908		262,641		(847,093		)	—
OTHER LONG-TERM LIABILITIES	9,460		2,954		24,409		—			36,823
Equity component of short-term debt -senior exchangeable notes	—		509		—		—			509
SHAREHOLDERS' EQUITY	134,382		43,843		2,492,127		(2,535,970		)	134,382
NON-CONTROLLING INTERESTS	—		—		3,668		—			3,668
TOTAL EQUITY	134,382		43,843		2,495,795		(2,535,970		)	138,050
TOTAL LIABILITIES AND EQUITY	$	672,837	$	248,885	$	3,024,242	$	(3,383,063	)	$	562,901

Condensed Consolidating Balance Sheets
(In thousands)	December 31, 2010
	Core Laboratories N.V. (Parent/ Guarantor)		Core Laboratories LP (Issuer)		Other Subsidiaries (Non- Guarantors)		Consolidating Adjustments			Consolidated Total
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	11,162	$	88,612	$	34,106	$	—		$	133,880
Accounts receivable, net	10		33,637		121,079		—			154,726
Inventories	—		4,127		29,852		—			33,979
Prepaid expenses and other current assets	5,641		9,437		11,657		—			26,735
	16,813		135,813		196,694		—			349,320
PROPERTY, PLANT AND EQUIPMENT, net	—		21,139		83,084		—			104,223
GOODWILL AND INTANGIBLES, net	46,986		15,838		100,053		—			162,877
INTERCOMPANY RECEIVABLES	21,749		164,945		242,754		(429,448		)	—
INVESTMENT IN AFFILIATES	553,693		—		1,567,416		(2,120,414		)	695
DEFERRED TAX ASSETS, net	2,810		—		6,436		(9,246		)	—
OTHER ASSETS	3,209		13,099		2,619		—			18,927
TOTAL ASSETS	$	645,260	$	350,834	$	2,199,056	$	(2,559,108	)	$	636,042
LIABILITIES AND EQUITY
CURRENT LIABILITIES:
Accounts payable	$	336	$	5,144	$	39,230	$	—		$	44,710
Short-term debt and lease obligations	—		147,543		—		—			147,543
Other accrued expenses	2,291		29,250		55,559		—			87,100
Total current liabilities	2,627		181,937		94,789		—			279,353
DEFERRED COMPENSATION	6,159		14,981		101		—			21,241
DEFERRED TAX LIABILITIES, net	—		11,444		—		(9,246		)	2,198
INTERCOMPANY PAYABLES	333,651		—		95,797		(429,448		)	—
OTHER LONG-TERM LIABILITIES	13,332		1,099		17,615		—			32,046
Equity component of short-term debt -senior exchangeable notes	—		8,864		—		—			8,864
SHAREHOLDERS' EQUITY	289,491		132,509		1,987,905		(2,120,414		)	289,491
NON-CONTROLLING INTERESTS	—		—		2,849		—			2,849
TOTAL EQUITY	289,491		132,509		1,990,754		(2,120,414		)	292,340
TOTAL LIABILITIES AND EQUITY	$	645,260	$	350,834	$	2,199,056	$	(2,559,108	)	$	636,042

Condensed Consolidating Statements of Operations (Unaudited)
(In thousands)	Three Months Ended September 30, 2011
	Core Laboratories N.V. (Parent/ Guarantor)			Core Laboratories LP (Issuer)		Other Subsidiaries (Non- Guarantors)		Consolidating Adjustments			Consolidated Total
REVENUE
Operating revenue	$	—		$	55,777	$	175,567	$	—		$	231,344
Intercompany revenue	486			6,091		37,676		(44,253		)	—
Earnings (loss) from consolidated affiliates	42,418			—		521,367		(563,785		)	—
Total revenue	42,904			61,868		734,610		(608,038		)	231,344
OPERATING EXPENSES
Operating costs	421			28,501		121,390		—			150,312
General and administrative expenses	1,451			9,706		25		—			11,182
Depreciation and amortization	—			1,550		4,188		—			5,738
Other (income) expense, net	(1,088		)	2,972		32,603		(33,939		)	548
Operating income	42,120			19,139		576,404		(574,099		)	63,564
Loss on exchange of Senior Exchangeable Notes	—			31		—		—			31
Interest expense	—			12,062		—		(8,237		)	3,825
Income (loss) before income tax expense	42,120			7,046		576,404		(565,862		)	59,708
Income tax (benefit) expense	(2,747		)	5,817		11,529		—			14,599
Net income	44,867			1,229		564,875		(565,862		)	45,109
Net income (loss) attributable to non-controlling interest	—			—		242		—			242
Net income (loss) attributable to Core Laboratories	$	44,867		$	1,229	$	564,633	$	(565,862	)	$	44,867

Condensed Consolidating Statements of Operations (Unaudited)
(In thousands)	Nine Months Ended September 30, 2011
	Core Laboratories N.V. (Parent/ Guarantor)			Core Laboratories LP (Issuer)			Other Subsidiaries (Non- Guarantors)			Consolidating Adjustments			Consolidated Total
REVENUE
Operating revenue	$	—		$	156,512		$	507,350		$	—		$	663,862
Intercompany revenue	1,255			17,786			108,570			(127,611		)	—
Earnings (loss) from consolidated affiliates	129,126			—			592,170			(721,296		)	—
Total revenue	130,381			174,298			1,208,090			(848,907		)	663,862
OPERATING EXPENSES
Operating costs	979			80,498			357,858			—			439,335
General and administrative expenses	6,066			24,360			37			—			30,463
Depreciation and amortization	—			4,779			12,595			—			17,374
Other (income) expense, net	(145		)	9,581			88,945			(99,557		)	(1,176		)
Operating income	123,481			55,080			748,655			(749,350		)	177,866
Loss on exchange of Senior Exchangeable Notes	—			870			—			—			870
Interest expense	—			95,071			—			(86,387		)	8,684
Income (loss) before income tax expense	123,481			(40,861		)	748,655			(662,963		)	168,312
Income tax (benefit) expense	(8,127		)	16,808			28,146			—			36,827
Net income	131,608			(57,669		)	720,509			(662,963		)	131,485
Net income (loss) attributable to non-controlling interest	—			—			(123		)	—			(123		)
Net income (loss) attributable to Core Laboratories	$	131,608		$	(57,669	)	$	720,632		$	(662,963	)	$	131,608

Condensed Consolidating Statements of Cash Flows (Unaudited)
(In thousands)	Nine Months Ended September 30, 2011
	Core Laboratories N.V. (Parent/ Guarantor)			Core Laboratories LP (Issuer)			Other Subsidiaries (Non- Guarantors)			Consolidating Adjustments		Consolidated Total
Net cash provided by (used in) operating activities	$	296,803		$	(2,406	)	$	(147,568	)	$	—	$	146,829
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	—			(4,087		)	(14,116		)	—		(18,203		)
Patents and other intangibles	—			(23		)	(154		)	—		(177		)
Business acquisitions, net of cash acquired	—			—			(21,000		)	—		(21,000		)
Proceeds from sale of assets	—			112			571			—		683
Proceeds from insurance recovery	—			—			884			—		884
Premiums on life insurance	—			(1,661		)	—			—		(1,661		)
Net cash used in investing activities	—			(5,659		)	(33,815		)	—		(39,474		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of debt	—			(71,467		)	(158,000		)	—		(229,467		)
Proceeds from debt	—			—			313,000			—		313,000
Stock options exercised	295			—			—			—		295
Excess tax benefits from stock-based compensation	2,315			—			—			—		2,315
Debt financing costs	—			(1,094		)	(903		)	—		(1,997		)
Settlement of warrants	(219,451		)	—			—			—		(219,451		)
Non-controlling interests - contributions	—			—			1,193			—		1,193
Non-controlling interests - dividends	—			—			(251		)	—		(251		)
Dividends paid	(34,356		)	—			—			—		(34,356		)
Repurchase of common shares	(55,495		)	—			—			—		(55,495		)
Net cash provided by (used in) financing activities	(306,692		)	(72,561		)	155,039			—		(224,214		)
NET CHANGE IN CASH AND CASH EQUIVALENTS	(9,889		)	(80,626		)	(26,344		)	—		(116,859		)
CASH AND CASH EQUIVALENTS, beginning of period	11,162			88,612			34,106			—		133,880
CASH AND CASH EQUIVALENTS, end of period	$	1,273		$	7,986		$	7,762		$	—	$	17,021

Condensed Consolidating Statements of Operations (Unaudited)
(In thousands)	Three Months Ended September 30, 2010
	Core Laboratories N.V. (Parent/ Guarantor)		Core Laboratories LP (Issuer)			Other Subsidiaries (Non- Guarantors)		Consolidating Adjustments			Consolidated Total
REVENUE
Operating revenue	$	—	$	48,856		$	150,365	$	—		$	199,221
Intercompany revenue	356		6,230			37,948		(44,534		)	—
Earnings from consolidated affiliates	42,764		—			69,553		(112,317		)	—
Total revenue	43,120		55,086			257,866		(156,851		)	199,221
OPERATING EXPENSES
Operating costs	346		24,928			100,498		—			125,772
General and administrative expenses	1,416		6,997			3		—			8,416
Depreciation and amortization	—		1,610			4,204		—			5,814
Other (income) expense, net	1,178		3,850			26,265		(32,291		)	(998		)
Operating income	40,180		17,701			126,896		(124,560		)	60,217
Loss on exchange of Senior Exchangeable Notes	—		675			—		—			675
Interest expense	—		24,008			3		(19,996		)	4,015
Income before income tax expense	40,180		(6,982		)	126,893		(104,564		)	55,527
Income tax (benefit) expense	1,626		10,463			4,675		—			16,764
Net income	38,554		(17,445		)	122,218		(104,564		)	38,763
Net income attributable to non-controlling interests	—		—			209		—			209
Net income attributable to Core Laboratories	$	38,554	$	(17,445	)	$	122,009	$	(104,564	)	$	38,554

Condensed Consolidating Statements of Operations (Unaudited)
(In thousands)	Nine Months Ended September 30, 2010
	Core Laboratories N.V. (Parent/ Guarantor)		Core Laboratories LP (Issuer)			Other Subsidiaries (Non- Guarantors)		Consolidating Adjustments			Consolidated Total
REVENUE
Operating revenue	$	—	$	142,403		$	444,057	$	—		$	586,460
Intercompany revenue	1,023		18,436			108,908		(128,367		)	—
Earnings from consolidated affiliates	115,662		—			286,057		(401,719		)	—
Total revenue	116,685		160,839			839,022		(530,086		)	586,460
OPERATING EXPENSES
Operating costs	1,058		75,149			304,070		—			380,277
General and administrative expenses	5,730		18,267			10		—			24,007
Depreciation and amortization	—		4,722			12,612		—			17,334
Other (income) expense, net	2,035		8,852			84,457		(95,852		)	(508		)
Operating income	107,862		53,849			437,873		(434,234		)	165,350
Loss on exchange of Senior Exchangeable Notes	—		675			—		—			675
Interest expense	—		32,175			9		(19,996		)	12,188
Income before income tax expense	107,862		20,999			437,864		(414,238		)	152,487
Income tax (benefit) expense	2,887		21,937			22,252		—			47,076
Net income	104,975		(938		)	415,612		(414,238		)	105,411
Net income attributable to non-controlling interests	—		—			436		—			436
Net income attributable to Core Laboratories	$	104,975	$	(938	)	$	415,176	$	(414,238	)	$	104,975

Condensed Consolidating Statements of Cash Flows (Unaudited)
(In thousands)	Nine Months Ended September 30, 2010
	Core Laboratories N.V. (Parent/ Guarantor)			Core Laboratories LP (Issuer)			Other Subsidiaries (Non- Guarantors)			Consolidating Adjustments		Consolidated Total
Net cash provided by operating activities	$	63,267		$	87,595		$	18,267		$	—	$	169,129
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	—			(2,899		)	(16,762		)	—		(19,661		)
Patents and other intangibles	—			(3		)	(177		)	—		(180		)
Business acquisitions, net of cash acquired	—			(9,000		)	—			—		(9,000		)
Proceeds from sale of assets	—			11			395			—		406
Premiums on life insurance	—			(1,357		)	—			—		(1,357		)
Net cash used in investing activities	—			(13,248		)	(16,544		)	—		(29,792		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of debt	—			(24,366		)	—			—		(24,366		)
Stock options exercised	336			—			—			—		336
Excess tax benefit from stock-based payments	798			—			—			—		798
Non-controlling interests - contributions	—			—			156			—		156
Non-controlling interests - dividends	—			—			(181		)	—		(181		)
Dividends paid	(37,095		)	—			—			—		(37,095		)
Repurchase of common shares	(92,077		)	—			—			—		(92,077		)
Net cash used in financing activities	(128,038		)	(24,366		)	(25		)	—		(152,429		)
NET CHANGE IN CASH AND CASH EQUIVALENTS	(64,771		)	49,981			1,698			—		(13,092		)
CASH AND CASH EQUIVALENTS, beginning of period	73,998			95,048			11,999			—		181,045
CASH AND CASH EQUIVALENTS, end of period	$	9,227		$	145,029		$	13,697		$	—	$	167,953

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Pensions and Other Postretirement Benefits Level 1 (Notes)

9 Months Ended

Sep. 30, 2011

PENSIONS AND OTHER POSTRETIREMENT BENEFITS [Abstract]

Pension and Other Postretirement Benefits Disclosure [Text Block]

PENSIONS AND OTHER POSTRETIREMENT BENEFITS

We provide a noncontributory defined benefit pension plan covering substantially all of our Dutch employees (the "Dutch Plan") who were hired prior to 2007 based on years of service and final pay or career average pay, depending on when the employee began participating. The benefits earned by the employees are immediately vested.  We fund the future obligations of the Dutch Plan by purchasing investment contracts from a large multi-national insurance company.  The investment contracts are purchased annually and expire after five years at which time they are replaced with new contracts that are adjusted to include changes in the benefit obligation for the current year and redemption of the expired contracts.  We determine the fair value of these plan assets with the assistance of an actuary using observable inputs (Level 2).  We make annual premium payments to the insurance company, based on each employee's age and current salary.

The following table summarizes the components of net periodic pension cost under this plan for the three and nine months ended September 30, 2011 and 2010 (in thousands):

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2011			2010			2011			2010
	(Unaudited)						(Unaudited)
Service cost	$	340		$	294		$	1,027		$	921
Interest cost	438			341			1,324			1,069
Expected return on plan assets	(204		)	(108		)	(616		)	(338		)
Amortization of transition asset	(21		)	(22		)	(65		)	(66		)
Amortization of prior service cost	39			40			119			120
Amortization of net loss	84			94			252			283
Net periodic pension cost	$	676		$	639		$	2,041		$	1,989

During the nine months ended September 30, 2011, we contributed approximately $1.9 million, as determined by the insurance company, to fund the estimated 2011 premiums on investment contracts held by the Dutch Plan.

We have adopted a non-qualified deferred compensation plan that allows certain highly compensated employees to defer a portion of their salary, commission and bonus, as well as the amount of any reductions in their deferrals under the deferred compensation plan for employees in the United States (the "Deferred Compensation Plan"), due to certain limitations imposed by the U.S. Internal Revenue Code of 1986, as amended (the "Internal Revenue Code").  The Deferred Compensation Plan also provides for employer contributions to be made on behalf of participants equal in amount to certain forfeitures of, and/or reductions in, employer contributions that participants could have received under the 401(k) Plan in the absence of certain limitations imposed by the Internal Revenue Code. Employer contributions to the Deferred Compensation Plan vest ratably over a period of five years. Contributions to the plan are invested in equity and other investment fund assets, and carried on the balance sheet at fair value.  A participant's plan benefits include the participant's deferrals, the vested portion of the employer's contributions, and deemed investment gains and losses on such amounts. The benefits under these contracts are fully vested and payment of benefits generally commences as of the last day of the month following the termination of services except that the payment of benefits for select executives generally commences on the first working day following a six month waiting period following the date of termination.

On a recurring basis, we use the market approach to value certain assets and liabilities at fair value at quoted prices in an active market (Level 1) and certain assets and liabilities using significant other observable inputs (Level 2). We do not have any assets or liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3). Gains and losses related to the fair value changes in the deferred compensation assets and liabilities are recorded in General and Administrative Expenses in the Consolidated Statements of Operations.  The following table summarizes the fair value balances (in thousands):

(Unaudited)			Fair Value Measurement at
			September 30, 2011
	Total		Level 1		Level 2		Level 3
Assets:
Deferred compensation plan trust assets	$	8,789	$	—	$	8,789	$	—
Liabilities:
Deferred compensation plan	$	13,197	$	2,611	$	10,586	$	—

			Fair Value Measurement at
			December 31, 2010
	Total		Level 1		Level 2		Level 3
Assets:
Deferred compensation plan trust assets	$	8,802	$	—	$	8,802	$	—
Liabilities:
Deferred compensation plan	$	13,063	$	2,275	$	10,788	$	—

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Debt Level 3 (Tables)

9 Months Ended

Sep. 30, 2011

Debt and Capital Lease Obligations [Abstract]

Schedule of Long-term Debt Instruments [Table Text Block]

Debt is summarized in the following table (in thousands):

	September 30, 2011			December 31, 2010
	(Unaudited)
Senior exchangeable notes	$	84,940		$	156,407
Discount on senior exchangeable notes	(504		)	(8,864		)
Net senior exchangeable notes	84,436			147,543
Senior notes	150,000			—
Credit facility	5,000			—
Capital lease obligations	150			—
Total debt	239,586			147,543
Less - current maturities of long-term debt and capital lease obligations	84,493			147,543
Long-term debt and capital lease obligations, net	$	155,093		$	—

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Income Tax Expense Level 4 (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
INCOME TAX EXPENSE [Abstract]
Effective Income Tax Rate, Continuing Operations	24.50%	30.20%	21.90%	30.90%
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority	$ 10.4		$ 10.4

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Goodwill and Intangibles (Details) (USD $) In Millions	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Goodwill [Line Items]
Business Acquisition, Cost of Acquired Entity, Purchase Price	$ 21.0	$ 9.0
Goodwill, Acquired During Period	8.0	5.6
Acquired Finite-lived Intangible Asset, Amount		$ 3.2

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Statement of Income Six Months Ended (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
REVENUE:
Services	$ 172,770	$ 151,671	$ 495,640	$ 448,123
Product sales	58,574	47,550	168,222	138,337
Total Revenue	231,344	199,221	663,862	586,460
OPERATING EXPENSES:
Cost of services, exclusive of depreciation expense shown below	108,601	92,914	321,334	284,682
Cost of product sales, exclusive of depreciation expense shown below	41,711	32,858	118,001	95,595
General and Administrative Expense, Excluding Depreciation	11,182	8,416	30,463	24,007
Depreciation	5,460	5,496	16,507	16,345
Amortization	278	318	867	989
Other (income), net	548	(998)	(1,176)	(508)
OPERATING INCOME	63,564	60,217	177,866	165,350
Loss on exchange of Senior Exchangeable Notes	31	675	870	675
Interest expense	3,825	4,015	8,684	12,188
Income before income tax expense	59,708	55,527	168,312	152,487
Income Tax Expense (Benefit)	14,599	16,764	36,827	47,076
Net income	45,109	38,763	131,485	105,411
Net Income (Loss) Attributable to Non-controlling Interest	242	209	(123)	436
Net income attributable to Core Laboratories N.V.	$ 44,867	$ 38,554	$ 131,608	$ 104,975
EARNINGS PER SHARE INFORMATION:
Basic earnings per share attributable to Core Laboratories N.V.	$ 0.96	$ 0.86	$ 2.87	$ 2.35
Diluted earnings per share attributable to Core Laboratories N.V.	$ 0.93	$ 0.79	$ 2.71	$ 2.19
Cash dividends per share	$ 0.25	$ 0.71	$ 0.75	$ 0.83
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
Basic	46,606	44,736	45,930	44,741
Diluted	48,030	48,955	48,634	47,923

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Pensions and Other Postretirement Benefits Level 3 (Tables)

9 Months Ended

Sep. 30, 2011

PENSIONS AND OTHER POSTRETIREMENT BENEFITS [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

The following table summarizes the components of net periodic pension cost under this plan for the three and nine months ended September 30, 2011 and 2010 (in thousands):

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2011			2010			2011			2010
	(Unaudited)						(Unaudited)
Service cost	$	340		$	294		$	1,027		$	921
Interest cost	438			341			1,324			1,069
Expected return on plan assets	(204		)	(108		)	(616		)	(338		)
Amortization of transition asset	(21		)	(22		)	(65		)	(66		)
Amortization of prior service cost	39			40			119			120
Amortization of net loss	84			94			252			283
Net periodic pension cost	$	676		$	639		$	2,041		$	1,989

Fair Value, by Balance Sheet Grouping [Table Text Block]

he following table summarizes the fair value balances (in thousands):

(Unaudited)			Fair Value Measurement at
			September 30, 2011
	Total		Level 1		Level 2		Level 3
Assets:
Deferred compensation plan trust assets	$	8,789	$	—	$	8,789	$	—
Liabilities:
Deferred compensation plan	$	13,197	$	2,611	$	10,586	$	—

			Fair Value Measurement at
			December 31, 2010
	Total		Level 1		Level 2		Level 3
Assets:
Deferred compensation plan trust assets	$	8,802	$	—	$	8,802	$	—
Liabilities:
Deferred compensation plan	$	13,063	$	2,275	$	10,788	$	—

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Earnings per Share Level 3 (Tables)

9 Months Ended

Sep. 30, 2011

Earnings Per Share [Abstract]

Schedule of Weighted Average Number of Shares [Table Text Block]

The

following table summarizes the calculation of weighted average common shares outstanding used in the computation of diluted earnings per share (in thousands):

	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2011	2010	2011	2010
	(Unaudited)		(Unaudited)
Weighted average basic common shares outstanding	46,606	44,736	45,930	44,741
Effect of dilutive securities:
Stock options	12	55	20	58
Contingent shares	80	38	69	37
Restricted stock and other	249	591	266	564
Senior exchangeable notes	1,083	2,030	1,144	1,735
Warrants	—	1,505	1,205	788
Weighted average diluted common and potential common shares outstanding	48,030	48,955	48,634	47,923

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Significant Accounting Policies Level 1 (Notes)

9 Months Ended

Sep. 30, 2011

BASIS OF PRESENTATION [Abstract]

Basis of Presentation and Significant Accounting Policies [Text Block]

BASIS OF PRESENTATION

The accompanying unaudited consolidated financial statements include the accounts of Core Laboratories N.V. and its subsidiaries for which we have a controlling voting interest and/or a controlling financial interest. These financial statements have been prepared in accordance with United States ("U.S.") generally accepted accounting principles ("GAAP") for interim financial information using the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, these financial statements do not include all of the information and footnote disclosures required by U.S. GAAP and should be read in conjunction with the financial statements and the summary of significant accounting policies and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2010.

Core Laboratories N.V. uses the equity method of accounting for investments in which it has less than a majority interest and over which it does not exercise control. Non-controlling interests have been recorded to reflect outside ownership attributable to consolidated subsidiaries that are less than 100% owned.  In the opinion of management, all adjustments considered necessary for the periods presented have been included in these financial statements.  Furthermore, the operating results presented for the three and nine months ended September 30, 2011 may not necessarily be indicative of the results that may be expected for the year ended December 31, 2011.

Core Laboratories N.V.'s balance sheet information for the year ended December 31, 2010 was derived from the 2010 audited consolidated financial statements but does not include all disclosures in accordance with U.S. GAAP.

Certain reclassifications were made to prior period amounts in order to conform to the current period presentation.  These reclassifications had no impact on the reported net income for the three and nine month periods ended September 30, 2011.

References to "Core Lab", "we", "our" and similar phrases are used throughout this Quarterly Report on Form 10-Q and relate collectively to Core Laboratories N.V. and its consolidated subsidiaries.

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Income Tax Expense Level 1 (Notes)

9 Months Ended

Sep. 30, 2011

INCOME TAX EXPENSE [Abstract]

Income Tax Disclosure [Text Block]

INCOME TAX EXPENSE

The effective tax rates for the three months ended September 30, 2011 and 2010 were 24.5% and 30.2%, respectively.  The effective tax rates for year to date 2011 and 2010 were 21.9% and 30.9%, respectively. Included in income tax expense is the reversal in the nine months ended September 30, 2011 of $10.4 million in tax liabilities provided over the period of 2007-2010 as a result of recently concluded audits of prior year returns. The decrease in income tax expense also reflects the change in activity levels among jurisdictions with different tax rates.  

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Equity Comprehensive Income (Details) (USD $) In Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010
Prior service cost	$ (764)		$ (764)		$ (853)
Transition asset	276		276		324
Unrecognized net actuarial loss	(5,491)		(5,491)		(5,678)
Net income	45,109	38,763	131,485	105,411
Amortization of deferred pension costs, net of tax	76	86	228	257
Total comprehensive income	45,185	38,849	131,713	105,668
Total accumulated other comprehensive income (loss)	$ (5,979)		$ (5,979)		$ (6,207)

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Inventories (Tables)

9 Months Ended

Sep. 30, 2011

INVENTORIES [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories consist of the following (in thousands):

	September 30, 2011		December 31, 2010
	(Unaudited)
Finished goods	$	32,650	$	24,476
Parts and materials	16,590		6,727
Work in progress	3,296		2,776
Total inventories	$	52,536	$	33,979

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Statement of Financial Position Statement (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Cash and Cash Equivalents, at Carrying Value	$ 17,021	$ 133,880
Accounts Receivable, Net	157,594	154,726
Inventory, Net	52,536	33,979
Prepaid Expense and Other Assets	27,272	26,735
TOTAL CURRENT ASSETS	254,423	349,320
Property, Plant and Equipment, Net	110,025	104,223
Intangible Assets, Net (Excluding Goodwill)	7,969	8,660
Goodwill	162,326	154,217
Deferred Tax Assets, Net, Noncurrent	6,586	0
Other Assets, Noncurrent	21,572	19,622
TOTAL ASSETS	562,901	636,042
Accounts Payable, Current	46,776	44,710
Employee-related Liabilities, Current	30,470	28,621
Sales and Excise Tax Payable, Current	7,656	7,796
Deferred Revenue, Current	18,912	20,181
Taxes Payable, Current	10,250	21,004
Convertible Debt, Current	84,493	147,543
Other Accrued Liabilities, Current	11,562	9,498
TOTAL CURRENT LIABILITIES	210,119	279,353
LONG-TERM DEBT AND CAPITAL LEASE OBLIGATIONS	155,093	0
Deferred Compensation Liability, Classified, Noncurrent	22,307	21,241
Deferred Tax Liabilities, Noncurrent	0	2,198
Other Liabilities, Noncurrent	36,823	32,046
Temporary Equity, Redemption Value	509	8,864
Preferred Stock, Value, Issued	0	0
Common Stock, Value, Issued	1,376	1,397
Additional Paid in Capital, Common Stock	0	0
Retained Earnings (Accumulated Deficit)	296,172	536,991
Accumulated Other Comprehensive Income (Loss), Net of Tax	(5,979)	(6,207)
Treasury shares (at cost), xxx at 2011 and 4,218,726 at 2010	(157,187)	(242,690)
Total Core Laboratories N.V. shareholders' equity	134,382	289,491
Stockholders' Equity Attributable to Noncontrolling Interest	3,668	2,849
TOTAL EQUITY	138,050	292,340
TOTAL LIABILITIES AND EQUITY	$ 562,901	$ 636,042

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Earnings per Share Level 4 (Details) (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Class of Warrant or Right Average Exercise Price			$ 61.14
Weighted Average Number of Shares Outstanding, Basic	46,606	44,736	45,930	44,741
Incremental Common Shares Attributable to Stock Options	12	55	20	58
Incremental Common Shares Attributable to Contingently Issuable Shares	80	38	69	37
Weighted Average Number of Shares, Restricted Stock	249	591	266	564
Incremental Common Shares Attributable to Conversion of Debt Securities	1,083	2,030	1,144	1,735
Incremental Common Shares Attributable to Call Options and Warrants	0	1,505	1,205	788
Weighted Average Number of Shares Outstanding, Diluted	48,030	48,955	48,634	47,923

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Other (Income), net Level 4 (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Gains (Losses) on Sales of Assets [Member]
Component of Operating Other Cost and Expense [Line Items]
Other Nonoperating Income (Expense)	$ (278)	$ (88)	$ (416)	$ (80)
Foreign Currency Gain (Loss) [Member]
Component of Operating Other Cost and Expense [Line Items]
Other Nonoperating Income (Expense)	1,522	(547)	1,001	1,074
Other Operating Expense [Member]
Component of Operating Other Cost and Expense [Line Items]
Other Nonoperating Income (Expense)	(245)	(11)	(324)	(308)
Gain on Business Interruption Insurance Recovery			800,000
Interest Income [Member]
Component of Operating Other Cost and Expense [Line Items]
Other Nonoperating Income (Expense)	(11)	0	(96)	(142)
Rents And Royalties Income Loss [Member]
Component of Operating Other Cost and Expense [Line Items]
Other Nonoperating Income (Expense)	(440)	(352)	(1,273)	(1,052)
gain loss on insurance recovery [Member]
Component of Operating Other Cost and Expense [Line Items]
Other Nonoperating Income (Expense)	0	0	(779)	0
Legal entity realignment [Member]
Component of Operating Other Cost and Expense [Line Items]
Other Nonoperating Income (Expense)	0	0	711	0
Component of Other Income, Nonoperating, Name [Domain]
Component of Operating Other Cost and Expense [Line Items]
Other Nonoperating Income (Expense)	$ 548	$ (998)	$ (1,176)	$ (508)