| UNITED STATES                                                                      |
|------------------------------------------------------------------------------------|
| SECURITIES AND EXCHANGE COMMISSION                                                 |
| Washington, D.C. 20549                                                             |
|                                                                               |   |   |
| FORM 10-Q                                                                          |
|                                                                               |
| (Mark One)                                                                         |   |
|                                                                               |   |
| ý                                                                             | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
|                                                                               |
| For the quarterly period ended March 31, 2010                                      |
|                                                                               |
| 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) |

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

----

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| CORE LABORATORIES N.V.                         |
|------------------------------------------------|
| FORM 10-Q FOR THE QUARTER ENDED MARCH 31, 2010 |
|                                           |
| INDEX                                          |
|                                           |
|                                           | Page |
| PART I - FINANCIAL INFORMATION                 |
|                                           |
| Item 1.                                        | Financial Statements |   |
|                                           |   |   |
|                                           | Consolidated Balance Sheets (Unaudited) at March 31, 2010 and December 31, 2009 | 1 |
|                                           |   |   |
|                                           | Consolidated Statements of Operations (Unaudited) for the Three Months Ended March 31, 2010 and 2009 | 2 |
|                                           |   |   |
|                                           | Consolidated Statements of Cash Flows (Unaudited) for the Three Months Ended March 31, 2010 and 2009 | 3 |
|                                           |   |   |
|                                           | Notes to the Unaudited Consolidated Interim Financial Statements | 4 |
|                                           |   |   |
| Item 2.                                        | Management's Discussion and Analysis of Financial Condition and Results of Operations | 15 |
|                                           |   |   |
| Item 3.                                        | Quantitative and Qualitative Disclosures About Market Risk | 21 |
|                                           |   |   |
| Item 4.                                        | Controls and Procedures | 21 |
|                                           |   |   |
|                                           |   |   |
| PART II - OTHER INFORMATION                    |
|                                           |   |   |
| Item 1.                                        | Legal Proceedings | 23 |
|                                           |   |   |
| Item 2.                                        | Unregistered Sales of Equity Securities and Use of Proceeds | 23 |
|                                           |   |   |
| Item 6.                                        | Exhibits | 24 |
|                                           |   |   |
|                                           | Signature | 25 |
|                                           |   |   |

----

|                                                                                  |   | March 31,                                        |     |   | December 31, |   |
|---------------------------------------------------------------------------------------|--------|--------------------------------------------------|----------|--------|--------------|--------|
|                                                                                  |   | 2010                                             |     |   | 2009         |   |
| ASSETS                                                                                |   |        (Unaudited) |     |
| CURRENT ASSETS:                                                                       |   |                                             |     |   |         |   |
| Cash and cash equivalents                                                             |   | $                                                | 138,768  |   |         | $      | 181,045 |   |
| Accounts receivable, net of allowance for doubtful accounts of $3,757 and             |   |                                             |     |   |         |   |   |   |
|   $3,202 at 2010 and 2009, respectively                                     |   |                                             | 130,986  |   |         |   | 133,758 |   |
| Inventories, net                                                                      |   |                                             | 32,652   |   |         |   | 32,184 |   |
| Prepaid expenses and other current assets                                             |   |                                             | 33,371   |   |         |   | 43,550 |   |
| TOTAL CURRENT ASSETS                                                                  |   |                                             | 335,777  |   |         |   | 390,537 |   |
|                                                                                  |   |                                             |     |   |         |   |   |   |
| PROPERTY, PLANT AND EQUIPMENT, net                                                    |   |                                             | 99,668   |   |         |   | 98,784 |   |
| INTANGIBLES, net                                                                      |   |                                             | 9,469    |   |         |   | 6,520 |   |
| GOODWILL                                                                              |   |                                             | 154,217  |   |         |   | 148,600 |   |
| OTHER ASSETS                                                                          |   |                                             | 15,019   |   |         |   | 13,725 |   |
| TOTAL ASSETS                                                                          |   | $                                                | 614,150  |   |         | $      | 658,166 |   |
|                                                                                  |   |                                             |     |   |         |   |   |   |
| LIABILITIES AND EQUITY                                                                |   |                                             |     |   |         |   |   |   |
| CURRENT LIABILITIES:                                                                  |   |                                             |     |   |         |   |   |   |
| Accounts payable                                                                      |   | $                                                | 36,526   |   |         | $      | 33,009 |   |
| Accrued payroll and related costs                                                     |   |                                             | 24,302   |   |         |   | 24,368 |   |
| Taxes other than payroll and income                                                   |   |                                             | 6,791    |   |         |   | 8,183 |   |
| Unearned revenues                                                                     |   |                                             | 23,616   |   |         |   | 16,528 |   |
| Income tax payable                                                                    |   |                                             | 15,444   |   |         |   | 15,433 |   |
| Short-term debt                                                                       |   |                                             | 212,915  |   |         |   | - |   |
| Other accrued expenses                                                                |   |                                             | 9,215    |   |         |   | 8,887 |   |
| TOTAL CURRENT LIABILITIES                                                             |   |                                             | 328,809  |   |         |   | 106,408 |   |
|                                                                                  |   |                                             |     |   |         |   |   |   |
| LONG-TERM DEBT                                                                        |   |                                             | -        |   |         |   | 209,112 |   |
| DEFERRED COMPENSATION                                                                 |   |                                             | 17,896   |   |         |   | 16,866 |   |
| DEFERRED TAX LIABILITIES                                                              |   |                                             | 7,528    |   |         |   | 7,692 |   |
| OTHER LONG-TERM LIABILITIES                                                           |   |                                             | 33,204   |   |         |   | 36,330 |   |
| COMMITMENTS AND CONTINGENCIES                                                         |   |                                             | -        |   |         |   | - |   |
|                                                                                  |   |                                             |     |   |         |   |   |   |
| EQUITY:                                                                               |   |                                             |     |   |         |   |   |   |
| Preference shares, EUR 0.04 par value;                                                |   |                                             |     |   |         |   |   |   |
| 3,000,000 shares authorized, none issued or outstanding                               |   |                                             | -        |   |         |   | - |   |
| Common shares, EUR 0.04 par value;                                                    |   |                                             |     |   |         |   |   |   |
| 100,000,000 shares authorized, 25,519,956 issued and 22,312,593 outstanding at 2010   |   |                                             |     |   |         |   |   |   |
| and 25,519,956 issued and 22,986,704 outstanding at 2009                              |   |                                             | 1,430    |   |         |   | 1,430 |   |
| Additional paid-in capital                                                            |   |                                             | 61,048   |   |         |   | 61,719 |   |
| Retained earnings                                                                     |   |                                             | 498,963  |   |         |   | 469,454 |   |
| Accumulated other comprehensive (loss)                                                |   |                                             | (6,451   | )      |         |   | (6,536 | ) |
| Treasury shares (at cost), 3,207,363 at 2010 and 2,533,252 at 2009                    |   |                                             | (330,748 | )      |         |   | (246,699 | ) |
|       Total Core Laboratories N.V. shareholders' equity |   |                                             | 224,242  |   |         |   | 279,368 |   |
| Non-controlling interest                                                              |   |                                             | 2,471    |   |         |   | 2,390 |   |
| TOTAL EQUITY                                                                          |   |                                             | 226,713  |   |         |   | 281,758 |   |
| TOTAL LIABILITIES AND EQUITY                                                          |   | $                                                | 614,150  |   |         | $      | 658,166 |   |

----

|                                                                        |   | Three Months EndedMarch 31, |              |
|-----------------------------------------------------------------------------|--------|-----------------------------|-------------------|
|                                                                        |   | 2010                        |              |   | 2009 |   |
|                                                                        |   | (Unaudited)                 |              |
| REVENUES:                                                                   |   |                        |              |   |   |   |
| Services                                                                    |   | $                           | 143,442           |   |   | $ | 141,692 |   |
| Product sales                                                               |   |                        | 44,895            |   |   |   | 37,184 |   |
|                                                                        |   |                        | 188,337           |   |   |   | 178,876 |   |
| OPERATING EXPENSES:                                                         |   |                        |              |   |   |   |   |   |
| Cost of services, exclusive of depreciation expense shown below             |   |                        | 95,357            |   |   |   | 88,296 |   |
| Cost of product sales, exclusive of depreciation expense shown below        |   |                        | 30,231            |   |   |   | 27,736 |   |
| General and administrative expenses                                         |   |                        | 6,380             |   |   |   | 9,274 |   |
| Depreciation                                                                |   |                        | 5,419             |   |   |   | 5,527 |   |
| Amortization                                                                |   |                        | 335               |   |   |   | 181 |   |
| Other expense (income), net                                                 |   |                        | (798              | ) |   |   | 1,243 |   |
| OPERATING INCOME                                                            |   |                        | 51,413            |   |   |   | 46,619 |   |
| Interest expense                                                            |   |                        | 4,059             |   |   |   | 3,800 |   |
| Income before income tax expense                                            |   |                        | 47,354            |   |   |   | 42,819 |   |
| Income tax expense                                                          |   |                        | 15,068            |   |   |   | 13,580 |   |
| Net income                                                                  |   |                        | 32,286            |   |   |   | 29,239 |   |
|     Net income attributable to non-controlling interest |   |                        | 81                |   |   |   | 47 |   |
| Net income attributable to Core Laboratories N.V.                           |   | $                           | 32,205            |   |   | $ | 29,192 |   |
|                                                                        |   |                        |              |   |   |   |   |   |
| EARNINGS PER SHARE INFORMATION:                                             |   |                        |              |   |   |   |   |   |
| Basic earnings per share attributable to Core Laboratories N.V.             |   | $                           |    1.44 |   |   | $ |    1.27 |   |
|                                                                        |   |                        |              |   |   |   |   |   |
| Diluted earnings per share attributable to Core Laboratories N.V.           |   | $                           | 1.38              |   |   | $ | 1.26 |   |
|                                                                        |   |                        |              |   |   |   |   |   |
| Cash dividends per share                                                    |   | $                           | 0.12              |   |   | $ |  0.10 |   |
|                                                                        |   |                        |              |   |   |   |   |   |
| WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:                                 |   |                        |              |   |   |   |   |   |
| Basic                                                                       |   |                        | 22,418            |   |   |   | 22,970 |   |
|                                                                        |   |                        |              |   |   |   |   |   |
| Diluted                                                                     |   |                        | 23,410            |   |   |   | 23,210 |   |
|                                                                        |   |                        |              |   |   |   |   |   |

----

|                                                                              |   | Three Months EndedMarch 31, |    |
|-----------------------------------------------------------------------------------|--------|-----------------------------|---------|
|                                                                              |   | 2010                        |    |   | 2009 |   |
|                                                                              |   | (Unaudited)                 |    |
| CASH FLOWS FROM OPERATING ACTIVITIES:                                             |   |                        |    |   |   |   |
| Net income                                                                        |   | $                           | 32,286  |   |   | $ | 29,239 |   |
| Adjustments to reconcile net income to net cash provided by operating activities: |   |                        |    |   |   |   |   |   |
| Net provision for (recoveries of) doubtful accounts                               |   |                        | 752     |   |   |   | 424 |   |
| Provisions for inventory obsolescence                                             |   |                        | 222     |   |   |   | 22 |   |
| Equity in earnings of affiliates                                                  |   |                        | (113    | ) |   |   | (48 | ) |
| Stock-based compensation                                                          |   |                        | 1,613   |   |   |   | 1,322 |   |
| Depreciation and amortization                                                     |   |                        | 5,754   |   |   |   | 5,708 |   |
| Non-cash interest expense                                                         |   |                        | 3,839   |   |   |   | 3,574 |   |
| Gain on sale of assets                                                            |   |                        | (30     | ) |   |   | (77 | ) |
| Realization of pension obligation                                                 |   |                        | 85      |   |   |   | 58 |   |
| (Increase) decrease in value of life insurance policies                           |   |                        | (513    | ) |   |   | 603 |   |
| Deferred income taxes                                                             |   |                        | 428     |   |   |   | (3,638 | ) |
| Changes in assets and liabilities:                                                |   |                        |    |   |   |   |   |   |
| Accounts receivable                                                               |   |                        | 2,020   |   |   |   | 12,312 |   |
| Inventories                                                                       |   |                        | (690    | ) |   |   | 1,840 |   |
| Prepaid expenses and other current assets                                         |   |                        | 9,587   |   |   |   | 1,127 |   |
| Other assets                                                                      |   |                        | (263    | ) |   |   | 85 |   |
| Accounts payable                                                                  |   |                        | 3,517   |   |   |   | (14,370 | ) |
| Accrued expenses                                                                  |   |                        | 5,969   |   |   |   | 5,327 |   |
| Other long-term liabilities                                                       |   |                        | (2,097  | ) |   |   | 6,610 |   |
| Net cash provided by operating activities                                         |   |                        | 62,366  |   |   |   | 50,118 |   |
| CASH FLOWS FROM INVESTING ACTIVITIES:                                             |   |                        |    |   |   |   |   |   |
| Capital expenditures                                                              |   |                        | (6,155  | ) |   |   | (2,655 | ) |
| Patents and other intangibles                                                     |   |                        | (84     | ) |   |   | (96 | ) |
| Acquisitions                                                                      |   |                        | (9,000  | ) |   |   | - |   |
| Proceeds from sale of assets                                                      |   |                        | 66      |   |   |   | 86 |   |
| Premiums on life insurance                                                        |   |                        | (441    | ) |   |   | (582 | ) |
| Net cash used in investing activities                                             |   |                        | (15,614 | ) |   |   | (3,247 | ) |
| CASH FLOWS FROM FINANCING ACTIVITIES:                                             |   |                        |    |   |   |   |   |   |
| Stock options exercised                                                           |   |                        | 274     |   |   |   | 169 |   |
| Excess tax benefits from stock-based compensation                                 |   |                        | (140    | ) |   |   | 45 |   |
| Dividends paid                                                                    |   |                        | (2,696  | ) |   |   | (2,302 | ) |
| Repurchase of common shares                                                       |   |                        | (86,467 | ) |   |   | (7,885 | ) |
| Net cash used in financing activities                                             |   |                        | (89,029 | ) |   |   | (9,973 | ) |
| NET CHANGE IN CASH AND CASH EQUIVALENTS                                           |   |                        | (42,277 | ) |   |   | 36,898 |   |
| CASH AND CASH EQUIVALENTS, beginning of period                                    |   |                        | 181,045 |   |   |   | 36,138 |   |
| CASH AND CASH EQUIVALENTS, end of period                                          |   | $                           | 138,768 |   |   | $ |  73,036 |   |
|                                                                              |   |                        |    |   |   |   |   |   |
|                                                                              |   |                        |    |   |   |   |   |   |
|                                                                              |   |

----

|                               |   | March 31,   |   |   | December 31, |   |
|------------------------------------|--------|-------------|--------|--------|--------------|--------|
|                               |   | 2010        |   |   | 2009         |   |
|                               |   | (Unaudited) |   |   |         |   |
| Finished goods                     |   | $           | 23,019 |   |         | $      | 22,161 |   |
| Parts and materials                |   |        | 8,386  |   |         |   | 8,756 |   |
| Work in progress                   |   |        | 1,247  |   |         |   | 1,267 |   |
|   Total inventories, net |   | $           | 32,652 |   |         | $      | 32,184 |   |

----

|                                      |   | March 31,                                              |    |   | December 31, |   |
|-------------------------------------------|--------|--------------------------------------------------------|---------|--------|--------------|--------|
|                                      |   | 2010                                                   |    |   | 2009         |   |
|                                      |   |         (Unaudited) |    |
| Senior exchangeable notes                 |   | $                                                      | 238,658 |   |         | $      | 238,658 |   |
| Discount on senior exchangeable notes     |   |                                                   | (25,743 | )      |         |   | (29,546 | ) |
|   Net senior exchangeable notes |   | $                                                      | 212,915 |   |         | $      | 209,112 |   |

----

|                                        |   | Three Months Ended March 31, |   |
|---------------------------------------------|--------|------------------------------|--------|
|                                        |   | 2010                         |   |   | 2009 |   |
|                                        |   | (Unaudited)                  |   |
| Service cost                                |   | $                            | 323    |   |   | $ | 253 |   |
| Interest cost                               |   |                         | 376    |   |   |   | 324 |   |
| Expected return on plan assets              |   |                         | (119   | ) |   |   | (178 | ) |
| Amortization of transition asset            |   |                         | (22    | ) |   |   | (22 | ) |
| Amortization of prior service cost          |   |                         | 40     |   |   |   | 40 |   |
| Amortization of net loss                    |   |                         | 94     |   |   |   | 61 |   |
|    Net periodic pension cost |   | $                            | 692    |   |   | $ | 478 |   |

| (Unaudited)                                               |   |   |   |   | Fair Value Measurement at March 31, 2010 |   |
|-----------------------------------------------------------|--------|--------|--------|--------|------------------------------------------|--------|
|                                                      |   | Total  |   |   | Level 1                                  |   |   | Level 2 |   |   | Level 3 |   |
| Assets:                                                   |   |   |   |   |                                     |   |   |   |   |   |   |   |
|    Deferred compensation plan trust assets |   | $      | 6,646  |   |                                     | $      | - |   |   | $ | 6,646 |   |   | $ | - |   |
|                                                      |   |   |   |   |                                     |   |   |   |   |   |   |   |   |   |   |   |
| Liabilities:                                              |   |   |   |   |                                     |   |   |   |   |   |   |   |   |   |   |   |
|    Deferred compensation plan              |   | $      | 10,086 |   |                                     | $      | 1,525 |   |   | $ | 8,561 |   |   | $ | - |   |

|                                                      |   |   |   |   | Fair Value Measurement at December 31, 2009 |   |
|-----------------------------------------------------------|--------|--------|--------|--------|---------------------------------------------|--------|
|                                                      |   | Total  |   |   | Level 1                                     |   |   | Level 2 |   |   | Level 3 |   |
| Assets:                                                   |   |   |   |   |                                        |   |   |   |   |   |   |   |
|    Deferred compensation plan trust assets |   | $      | 6,193  |   |                                        | $      | - |   |   | $ | 6,193 |   |   | $ | - |   |
|                                                      |   |   |   |   |                                        |   |   |   |   |   |   |   |   |   |   |   |
| Liabilities:                                              |   |   |   |   |                                        |   |   |   |   |   |   |   |   |   |   |   |
|    Deferred compensation plan              |   | $      | 9,366  |   |                                        | $      | 1,339 |   |   | $ | 8,027 |   |   | $ | - |   |

----

|                                     |   |   |   |   |       |   |   |     |   |   | Accumulated   |   |   |     |   |   |        |   |     |   |   |
|------------------------------------------|--------|--------|--------|--------|------------|--------|--------|----------|--------|--------|---------------|--------|--------|----------|--------|--------|-------------|--------|----------|--------|--------|
|                                     |   |   |   |   | Additional |   |   |     |   |   | Other         |   |   |     |   |   | Non-        |   |     |   |   |
|                                     |   | Common |   |   | Paid-In    |   |   | Retained |   |   | Comprehensive |   |   | Treasury |   |   | Controlling |   |     | Total  |   |
| (Unaudited)                              |   | Shares |   |   | Capital    |   |   | Earnings |   |   | Income (Loss) |   |   | Stock    |   |   | Interest    |   |     | Equity |   |
|                                     |   |   |   |   |       |   |   |     |   |   |          |   |   |     |   |   |        |   |     |   |   |
| December 31, 2009                        |   | $      | 1,430  |   |       | $      | 61,719 |     |   | $      | 469,454       |   |   | $        | (6,536 | )      |        | $      | (246,699 | )      |   | $ | 2,390 |   |   | $ | 281,758 |   |
| Stock options exercised                  |   |   | -      |   |       |   | (1,218 | )        |   |   | -             |   |   |     | -      |   |        |   | 1,492    |   |   |   | - |   |   |   | 274 |   |
| Stock based-awards                       |   |   | -      |   |       |   | 687    |     |   |   | -             |   |   |     | -      |   |        |   | 926      |   |   |   | - |   |   |   | 1,613 |   |
| Tax benefit of stock-based awards issued |   |   | -      |   |       |   | (140   | )        |   |   | -             |   |   |     | -      |   |        |   | -        |   |   |   | - |   |   |   | (140 | ) |
| Repurchase of common shares              |   |   | -      |   |       |   | -      |     |   |   | -             |   |   |     | -      |   |        |   | (86,467  | )      |   |   | - |   |   |   | (86,467 | ) |
| Dividends paid                           |   |   | -      |   |       |   | -      |     |   |   | (2,696        | )      |   |     | -      |   |        |   | -        |   |   |   | - |   |   |   | (2,696 | ) |
| Comprehensive income:                    |   |   |   |   |       |   |   |     |   |   |          |   |   |     |   |   |        |   |     |   |   |   |   |   |   |   |   |   |
| Amortization of pension,net of tax       |   |   | -      |   |       |   | -      |     |   |   | -             |   |   |     | 85     |   |        |   | -        |   |   |   | - |   |   |   | 85 |   |
| Net income                               |   |   | -      |   |       |   | -      |     |   |   | 32,205        |   |   |     | -      |   |        |   | -        |   |   |   | 81 |   |   |   | 32,286 |   |
| Total comprehensive income               |   |   |   |   |       |   |   |     |   |   |          |   |   |     |   |   |        |   |     |   |   |   |   |   |   |   | 32,371 |   |
|                                     |   |   |   |   |       |   |   |     |   |   |          |   |   |     |   |   |        |   |     |   |   |   |   |   |   |   |   |   |
| March 31, 2010                           |   | $      | 1,430  |   |       | $      | 61,048 |     |   | $      | 498,963       |   |   | $        | (6,451 | )      |        | $      | (330,748 | )      |   | $ | 2,471 |   |   | $ | 226,713 |   |

|                                   |   | Three months endedMarch 31, |   |
|----------------------------------------|--------|-----------------------------|--------|
|                                   |   | 2010                        |   |   | 2009 |   |
|                                   |   | (Unaudited)                 |   |
| Net income                             |   | $                           | 32,286 |   |   | $ | 29,239 |   |
| Realization of pension obligation      |   |                        | 85     |   |   |   | 58 |   |
|   Total comprehensive income |   | $                           | 32,371 |   |   | $ | 29,297 |   |

----

|                                                   |   | March 31,   |   |   | December 31, |   |
|--------------------------------------------------------|--------|-------------|--------|--------|--------------|--------|
|                                                   |   | 2010        |   |   | 2009         |   |
|                                                   |   | (Unaudited) |   |   |         |   |
| Prior service cost                                     |   | $           | (941   | )      |         | $      | (971 | ) |
| Transition asset                                       |   |        | 373    |   |         |   | 389 |   |
| Unrecognized net actuarial loss                        |   |        | (5,883 | )      |         |   | (5,954 | ) |
|   Total accumulated other comprehensive loss |   | $           | (6,451 | )      |         | $      | (6,536 | ) |

|                                                                    |   | Three Months Ended March 31, |   |
|-------------------------------------------------------------------------|--------|------------------------------|--------|
|                                                                    |   | 2010                         |   |   | 2009 |   |
|                                                                    |   | (Unaudited)                  |   |
| Weighted average basic common shares outstanding                        |   |                         | 22,418 |   |   |   | 22,970 |   |
| Effect of dilutive securities:                                          |   |                         |   |   |   |   |   |   |
| Stock options                                                           |   |                         | 29     |   |   |   | 100 |   |
| Contingent shares                                                       |   |                         | 15     |   |   |   | 13 |   |
| Restricted stock and other                                              |   |                         | 262    |   |   |   | 127 |   |
| Senior exchangeable notes and warrants                                  |   |                         | 686    |   |   |   | - |   |
| Weighted average diluted common and potential common shares outstanding |   |                         | 23,410 |   |   |   | 23,210 |   |

|                                          |   | Three Months Ended March 31, |   |
|-----------------------------------------------|--------|------------------------------|--------|
|                                          |   | 2010                         |   |   | 2009 |   |
|                                          |   | (Unaudited)                  |   |
| (Gain) loss on sale of assets                 |   | $                            | (31    | ) |   | $ |  (77 | ) |
| Foreign exchange loss (gain)                  |   |                         | (91    | ) |   |   | 1,888 |   |
| Interest income                               |   |                         | (12    | ) |   |   | (39 | ) |
| Rents and royalties                           |   |                         | (473   | ) |   |   | (341 | ) |
| Other, net                                    |   |                         | (191   | ) |   |   | (188 | ) |
|   Total other expense (income), net |   | $                            | (798   | ) |   | $ | 1,243 |   |

----

|                          |   | Three Months Ended March 31, |   |
|-------------------------------|--------|------------------------------|--------|
|                          |   | 2010                         |   |   | 2009 |   |
|                          |   | (Unaudited)                  |   |
| British Pound                 |   | $                            | 258    |   |   | $ | 72 |   |
| Canadian Dollar               |   |                         | (385   | ) |   |   | 348 |   |
| Euro                          |   |                         | (30    | ) |   |   | 163 |   |
| Kazakhstan Tenge              |   |                         | 1      |   |   |   | 167 |   |
| Malaysian Ringgit             |   |                         | (73    | ) |   |   | 136 |   |
| Mexican Peso                  |   |                         | 108    |   |   |   | 132 |   |
| Russian Ruble                 |   |                         | 54     |   |   |   | 596 |   |
| Other currencies, net         |   |                         | (24    | ) |   |   | 274 |   |
|   Total loss (gain) |   | $                            | (91    | ) |   | $ | 1,888 |   |

| *      | 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 effectivenessof 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.                                                                                                           |

----

| (Unaudited)                                                                                                                |   | Reservoir Description |    |   | Production Enhancement |   |    | Reservoir Management |   |   | Corporate & Other 1 |   |   | Consolidated |    |
|----------------------------------------------------------------------------------------------------------------------------|--------|-----------------------|---------|--------|------------------------|--------|---------|----------------------|--------|--------|-------------------------|--------|--------|--------------|---------|
| Three Months Ended March 31, 2010                                                                                          |   |                  |    |   |                   |   |    |                 |   |   |                    |   |   |
| Revenues from unaffiliated customers                                                                                       |   | $                     | 104,093 |   |                   | $      | 68,844  |                 |   | $      | 15,400                  |   |   | $            | -       |   |   | $ | 188,337 |   |
| Inter-segment revenues                                                                                                     |   |                  | 300     |   |                   |   | 294     |                 |   |   | 288                     |   |   |         | (882    | ) |   |   | - |   |
| Segment operating income (loss)                                                                                            |   |                  | 25,084  |   |                   |   | 20,943  |                 |   |   | 5,620                   |   |   |         | (234    | ) |   |   | 51,413 |   |
| Total assets                                                                                                               |   |                  | 257,184 |   |                   |   | 182,943 |                 |   |   | 18,216                  |   |   |         | 155,807 |   |   |   | 614,150 |   |
| Capital expenditures                                                                                                       |   |                  | 5,329   |   |                   |   | 672     |                 |   |   | 38                      |   |   |         | 116     |   |   |   | 6,155 |   |
| Depreciation and amortization                                                                                              |   |                  | 3,507   |   |                   |   | 1,623   |                 |   |   | 158                     |   |   |         | 466     |   |   |   | 5,754 |   |
|                                                                                                                       |   |                  |    |   |                   |   |    |                 |   |   |                    |   |   |         |    |   |   |   |   |   |
| Three Months Ended March 31, 2009                                                                                          |   |                  |    |   |                   |   |    |                 |   |   |                    |   |   |         |    |   |   |
| Revenues from unaffiliated customers                                                                                       |   | $                     | 102,523 |   |                   | $      | 63,100  |                 |   | $      | 13,253                  |   |   | $            | -       |   |   | $ | 178,876 |   |
| Inter-segment revenues                                                                                                     |   |                  | 123     |   |                   |   | 361     |                 |   |   | 381                     |   |   |         | (865    | ) |   |   | - |   |
| Segment operating income (loss)                                                                                            |   |                  | 24,752  |   |                   |   | 18,324  |                 |   |   | 3,478                   |   |   |         | 65      |   |   |   | 46,619 |   |
| Total assets                                                                                                               |   |                  | 253,398 |   |                   |   | 172,345 |                 |   |   | 21,024                  |   |   |         | 96,519  |   |   |   | 543,286 |   |
| Capital expenditures                                                                                                       |   |                  | 2,063   |   |                   |   | 587     |                 |   |   | -                       |   |   |         | 5       |   |   |   | 2,655 |   |
| Depreciation and amortization                                                                                              |   |                  | 3,357   |   |                   |   | 1,462   |                 |   |   | 177                     |   |   |         | 712     |   |   |   | 5,708 |   |
|                                                                                                                       |   |                  |    |   |                   |   |    |                 |   |   |                    |   |   |         |    |   |   |   |   |   |
| (1) "Corporate & Other" represents those items that are not directly related to a particular segment and eliminations. |   |

----

| Condensed Consolidating Balance Sheets (Unaudited) |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |
|----------------------------------------------------|--------|--------------------------------------------|---------|--------|-------------------------------|--------|---------|--------------------------------------|--------|--------|---------------------------|--------|--------|
|                                               |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |   |   |
| (In thousands)                                     |   | March 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                          |   | $                                          | 17,005  |   |                          | $      | 109,067 |                                 |   | $      | 12,696                    |   |   | $ | - |   |   | $ | 138,768 |   |
| Accounts receivable, net                           |   |                                       | 1       |   |                          |   | 31,136  |                                 |   |   | 99,849                    |   |   |   | - |   |   |   | 130,986 |   |
| Inventories, net                                   |   |                                       | -       |   |                          |   | 2,202   |                                 |   |   | 30,450                    |   |   |   | - |   |   |   | 32,652 |   |
| Prepaid expenses and other current assets          |   |                                       | 16,723  |   |                          |   | 5,732   |                                 |   |   | 10,916                    |   |   |   | - |   |   |   | 33,371 |   |
| Total current assets                               |   |                                       | 33,729  |   |                          |   | 148,137 |                                 |   |   | 153,911                   |   |   |   | - |   |   |   | 335,777 |   |
|                                               |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |   |   |   |   |   |   |   |
| PROPERTY, PLANT AND EQUIPMENT, net                 |   |                                       | -       |   |                          |   | 21,516  |                                 |   |   | 78,152                    |   |   |   | - |   |   |   | 99,668 |   |
| GOODWILL AND INTANGIBLES, net                      |   |                                       | 46,986  |   |                          |   | 16,519  |                                 |   |   | 100,181                   |   |   |   | - |   |   |   | 163,686 |   |
| INTERCOMPANY RECEIVABLES                           |   |                                       | 37,674  |   |                          |   | 265,369 |                                 |   |   | 288,046                   |   |   |   | (591,089 | ) |   |   | - |   |
| INVESTMENT IN AFFILIATES                           |   |                                       | 571,968 |   |                          |   | -       |                                 |   |   | 1,599,556                 |   |   |   | (2,171,091 | ) |   |   | 433 |   |
| DEFERRED TAX ASSET                                 |   |                                       | 2,951   |   |                          |   | -       |                                 |   |   | 7,753                     |   |   |   | (10,704 | ) |   |   | - |   |
| OTHER ASSETS                                       |   |                                       | 2,987   |   |                          |   | 9,315   |                                 |   |   | 2,284                     |   |   |   | - |   |   |   | 14,586 |   |
| TOTAL ASSETS                                       |   | $                                          | 696,295 |   |                          | $      | 460,856 |                                 |   | $      | 2,229,883                 |   |   | $ | (2,772,884 | ) |   | $ | 614,150 |   |
|                                               |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |   |   |   |   |   |   |   |
| LIABILITIES AND EQUITY                             |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |   |   |   |   |
| CURRENT LIABILITIES:                               |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |   |   |   |   |   |   |   |
| Accounts payable                                   |   | $                                          | 441     |   |                          | $      | 5,733   |                                 |   | $      | 30,352                    |   |   | $ | - |   |   | $ | 36,526 |   |
| Short-term debt                                    |   |                                       |  - |   |                          |   | 212,915 |                                 |   |   | -                         |   |   |   | - |   |   |   | 212,915 |   |
| Other accrued expenses                             |   |                                       | 2,345   |   |                          |   | 30,149  |                                 |   |   | 46,874                    |   |   |   | - |   |   |   | 79,368 |   |
| Total current liabilities                          |   |                                       | 2,786   |   |                          |   | 248,797 |                                 |   |   | 77,226                    |   |   |   | - |   |   |   | 328,809 |   |
|                                               |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |   |   |   |   |   |   |   |
| LONG-TERM DEBT                                     |   |                                       | -       |   |                          |   | -       |                                 |   |   | -                         |   |   |   | - |   |   |   | - |   |
| DEFERRED COMPENSATION                              |   |                                       | 6,199   |   |                          |   | 10,905  |                                 |   |   | 792                       |   |   |   | - |   |   |   | 17,896 |   |
| DEFERRED TAX LIABILITY                             |   |                                       | -       |   |                          |   | 17,934  |                                 |   |   | 298                       |   |   |   | (10,704 | ) |   |   | 7,528 |   |
| INTERCOMPANY PAYABLES                              |   |                                       | 449,769 |   |                          |   | 24,058  |                                 |   |   | 117,262                   |   |   |   | (591,089 | ) |   |   | - |   |
| OTHER LONG-TERM LIABILITIES                        |   |                                       | 13,299  |   |                          |   | 7,152   |                                 |   |   | 12,753                    |   |   |   | - |   |   |   | 33,204 |   |
|                                               |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |   |   |   |   |   |   |   |
| SHAREHOLDERS' EQUITY                               |   |                                       | 224,242 |   |                          |   | 152,010 |                                 |   |   | 2,019,081                 |   |   |   | (2,171,091 | ) |   |   | 224,242 |   |
| NON-CONTROLLING INTEREST                           |   |                                       | -       |   |                          |   | -       |                                 |   |   | 2,471                     |   |   |   | - |   |   |   | 2,471 |   |
| TOTAL EQUITY                                       |   |                                       | 224,242 |   |                          |   | 152,010 |                                 |   |   | 2,021,552                 |   |   |   | (2,171,091 | ) |   |   | 226,713 |   |
|                                               |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |   |   |   |   |   |   |   |
| TOTAL LIABILITIES AND EQUITY                  |   | $                                          | 696,295 |   |                          | $      | 460,856 |                                 |   | $      | 2,229,883                 |   |   | $ | (2,772,884 | ) |   | $ | 614,150 |   |

----

| Condensed Consolidating Balance Sheets    |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |               |       |
|-------------------------------------------|--------|--------------------------------------------|---------|--------|-------------------------------|--------|---------|--------------------------------------|--------|--------|---------------------------|--------|--------|--------------------|------------|
|                                      |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |               |       |
| (In thousands)                            |   | December 31, 2009                          |    |
|                                      |   | 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                 |   | $                                          | 73,998  |   |                          | $      | 95,048  |                                 |   | $      | 11,999                    |   |   | $                  | -          |   |   | $ | 181,045 |   |
| Accounts receivable, net                  |   |                                       | 1       |   |                          |   | 29,452  |                                 |   |   | 104,305                   |   |   |               | -          |   |   |   | 133,758 |   |
| Inventories, net                          |   |                                       | -       |   |                          |   | 2,679   |                                 |   |   | 29,505                    |   |   |               | -          |   |   |   | 32,184 |   |
| Prepaid expenses and other current assets |   |                                       | 11,809  |   |                          |   | 22,209  |                                 |   |   | 9,532                     |   |   |               | -          |   |   |   | 43,550 |   |
| Total current assets                      |   |                                       | 85,808  |   |                          |   | 149,388 |                                 |   |   | 155,341                   |   |   |               | -          |   |   |   | 390,537 |   |
|                                      |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |               |       |   |   |   |   |   |
| PROPERTY, PLANT AND EQUIPMENT, net        |   |                                       | -       |   |                          |   | 21,988  |                                 |   |   | 76,796                    |   |   |               | -          |   |   |   | 98,784 |   |
| GOODWILL AND INTANGIBLES, net             |   |                                       | 46,986  |   |                          |   | 7,949   |                                 |   |   | 100,185                   |   |   |               | -          |   |   |   | 155,120 |   |
| INTERCOMPANY RECEIVABLES                  |   |                                       | 37,681  |   |                          |   | 216,670 |                                 |   |   | 232,802                   |   |   |               | (487,153   | ) |   |   | - |   |
| INVESTMENT IN AFFILIATES                  |   |                                       | 540,724 |   |                          |   | -       |                                 |   |   | 1,387,715                 |   |   |               | (1,928,118 | ) |   |   | 321 |   |
| DEFERRED TAX ASSET                        |   |                                       | 2,951   |   |                          |   | 4,644   |                                 |   |   | 14,359                    |   |   |               | (21,954    | ) |   |   | - |   |
| OTHER ASSETS                              |   |                                       | 2,828   |   |                          |   | 8,770   |                                 |   |   | 1,806                     |   |   |               | -          |   |   |   | 13,404 |   |
| TOTAL ASSETS                              |   | $                                          | 716,978 |   |                          | $      | 409,409 |                                 |   | $      | 1,969,004                 |   |   | $                  | (2,437,225 | ) |   | $ | 658,166 |   |
|                                      |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |               |       |   |   |   |   |   |
| LIABILITIES AND EQUITY                    |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |               |       |   |   |
| CURRENT LIABILITIES:                      |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |               |       |   |   |   |   |   |
| Accounts payable                          |   | $                                          | 501     |   |                          | $      | 6,404   |                                 |   | $      | 26,104                    |   |   | $                  | -          |   |   | $ | 33,009 |   |
| Other accrued expenses                    |   |                                       | 673     |   |                          |   | 29,738  |                                 |   |   | 42,988                    |   |   |               | -          |   |   |   | 73,399 |   |
| Total current liabilities                 |   |                                       | 1,174   |   |                          |   | 36,142  |                                 |   |   | 69,092                    |   |   |               | -          |   |   |   | 106,408 |   |
|                                      |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |               |       |   |   |   |   |   |
| LONG-TERM DEBT                            |   |                                       | -       |   |                          |   | 209,112 |                                 |   |   | -                         |   |   |               | -          |   |   |   | 209,112 |   |
| DEFERRED COMPENSATION                     |   |                                       | 6,046   |   |                          |   | 10,094  |                                 |   |   | 726                       |   |   |               | -          |   |   |   | 16,866 |   |
| DEFERRED TAX LIABILITY                    |   |                                       | -       |   |                          |   | 29,646  |                                 |   |   | -                         |   |   |               | (21,954    | ) |   |   | 7,692 |   |
| INTERCOMPANY PAYABLES                     |   |                                       | 417,618 |   |                          |   | -       |                                 |   |   | 69,535                    |   |   |               | (487,153   | ) |   |   | - |   |
| OTHER LONG-TERM LIABILITIES               |   |                                       | 12,772  |   |                          |   | 7,702   |                                 |   |   | 15,856                    |   |   |               | -          |   |   |   | 36,330 |   |
|                                      |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |               |       |   |   |   |   |   |
| SHAREHOLDERS' EQUITY                      |   |                                       | 279,368 |   |                          |   | 116,713 |                                 |   |   | 1,811,405                 |   |   |               | (1,928,118 | ) |   |   | 279,368 |   |
| NON-CONTROLLING INTEREST                  |   |                                       | -       |   |                          |   | -       |                                 |   |   | 2,390                     |   |   |               | -          |   |   |   | 2,390 |   |
| TOTAL EQUITY                              |   |                                       | 279,368 |   |                          |   | 116,713 |                                 |   |   | 1,813,795                 |   |   |               | (1,928,118 | ) |   |   | 281,758 |   |
|                                      |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |               |       |   |   |   |   |   |
| TOTAL LIABILITIES AND EQUITY              |   | $                                          | 716,978 |   |                          | $      | 409,409 |                                 |   | $      | 1,969,004                 |   |   | $                  | (2,437,225 | ) |   | $ | 658,166 |   |

----

| Condensed Consolidating Statements of Operations (Unaudited) |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |
|--------------------------------------------------------------|--------|--------------------------------------------|--------|--------|-------------------------------|--------|--------|--------------------------------------|--------|--------|---------------------------|--------|--------|
|                                                         |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |   |   |
| (In thousands)                                               |   | Three Months Ended March 31, 2010          |   |
|                                                         |   | Core Laboratories N.V. (Parent/ Guarantor) |   |   | Core Laboratories LP (Issuer) |   |   | Other Subsidiaries (Non- Guarantors) |   |   | Consolidating Adjustments |   |   | Consolidated Total |   |
| REVENUES                                                     |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |   |   |
| Operating revenues                                           |   | $                                          | -      |   |                          | $      | 45,161 |                                 |   | $      | 143,176                   |   |   | $ | - |   |   | $ | 188,337 |   |
| Intercompany revenues                                        |   |                                       | 288    |   |                          |   | 4,587  |                                 |   |   | 35,509                    |   |   |   | (40,384 | ) |   |   | - |   |
| Earnings from consolidated affiliates                        |   |                                       | 35,189 |   |                          |   | -      |                                 |   |   | 100,759                   |   |   |   | (135,948 | ) |   |   | - |   |
| Total revenues                                               |   |                                       | 35,477 |   |                          |   | 49,748 |                                 |   |   | 279,444                   |   |   |   | (176,332 | ) |   |   | 188,337 |   |
|                                                         |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |   |   |   |   |   |   |   |
| OPERATING EXPENSES                                           |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |   |   |   |   |   |   |   |
| Operating costs                                              |   |                                       | 390    |   |                          |   | 24,984 |                                 |   |   | 100,214                   |   |   |   | - |   |   |   | 125,588 |   |
| General and administrative expenses                          |   |                                       | 2,167  |   |                          |   | 4,210  |                                 |   |   | 3                         |   |   |   | - |   |   |   | 6,380 |   |
| Depreciation and amortization                                |   |                                       | -      |   |                          |   | 1,558  |                                 |   |   | 4,196                     |   |   |   | - |   |   |   | 5,754 |   |
| Other expense (income), net                                  |   |                                       | (135   | )      |                          |   | 1,591  |                                 |   |   | 28,308                    |   |   |   | (30,562 | ) |   |   | (798 | ) |
|                                                         |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |   |   |   |   |   |   |   |
| Operating income                                             |   |                                       | 33,055 |   |                          |   | 17,405 |                                 |   |   | 146,723                   |   |   |   | (145,770 | ) |   |   | 51,413 |   |
| Interest expense                                             |   |                                       | -      |   |                          |   | 4,055  |                                 |   |   | 4                         |   |   |   | - |   |   |   | 4,059 |   |
|                                                         |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |   |   |   |   |   |   |   |
| Income before income tax expense                             |   |                                       | 33,055 |   |                          |   | 13,350 |                                 |   |   | 146,719                   |   |   |   | (145,770 | ) |   |   | 47,354 |   |
| Income tax expense (benefit)                                 |   |                                       | 850    |   |                          |   | 5,482  |                                 |   |   | 8,736                     |   |   |   | - |   |   |   | 15,068 |   |
|                                                         |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |   |   |   |   |   |   |   |
| Net income                                                   |   |                                       | 32,205 |   |                          |   | 7,868  |                                 |   |   | 137,983                   |   |   |   | (145,770 | ) |   |   | 32,286 |   |
| Net income attributable to non-controlling interest          |   |                                       | -      |   |                          |   | -      |                                 |   |   | 81                        |   |   |   | - |   |   |   | 81 |   |
|                                                         |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |   |   |   |   |   |   |   |
| Net income attributable to Core Laboratories                 |   | $                                          | 32,205 |   |                          | $      | 7,868  |                                 |   | $      | 137,902                   |   |   | $ | (145,770 | ) |   | $ | 32,205 |   |

| Condensed Consolidating Statements of Cash Flows (Unaudited) |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |
|--------------------------------------------------------------|--------|--------------------------------------------|---------|--------|-------------------------------|--------|---------|--------------------------------------|--------|--------|---------------------------|--------|--------|
|                                                         |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |   |   |
| (In thousands)                                               |   | Three Months Ended March 31, 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                    |   | $                                          | 32,036  |   |                          | $      | 25,991  |                                 |   | $      | 4,339                     |   |   | $ | - |   |   | $ | 62,366 |   |
|                                                         |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |   |   |   |   |   |   |   |
| CASH FLOWS FROM INVESTING ACTIVITIES:                        |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |   |   |   |   |
| Capital expenditures                                         |   |                                       | -       |   |                          |   | (2,520  | )                                    |   |   | (3,635                    | )      |   |   | - |   |   |   | (6,155 | ) |
| Patents and other intangibles                                |   |                                       | -       |   |                          |   | (20     | )                                    |   |   | (64                       | )      |   |   | - |   |   |   | (84 | ) |
| Acquisitions, net of cash                                    |   |                                       | -       |   |                          |   | (9,000  | )                                    |   |   | -                         |   |   |   | - |   |   |   | (9,000 | ) |
| Proceeds from sale of assets                                 |   |                                       | -       |   |                          |   | 9       |                                 |   |   | 57                        |   |   |   | - |   |   |   | 66 |   |
| Premiums on life insurance                                   |   |                                       | -       |   |                          |   | (441    | )                                    |   |   | -                         |   |   |   | - |   |   |   | (441 | ) |
| Net cash used in investing activities                        |   |                                       | -       |   |                          |   | (11,972 | )                                    |   |   | (3,642                    | )      |   |   | - |   |   |   | (15,614 | ) |
|                                                         |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |   |   |   |   |   |   |   |
| CASH FLOWS FROM FINANCING ACTIVITIES:                        |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |   |   |   |   |
| Stock options exercised                                      |   |                                       | 274     |   |                          |   | -       |                                 |   |   | -                         |   |   |   | - |   |   |   | 274 |   |
| Excess tax benefit from stock-based payments                 |   |                                       | (140    | )      |                          |   | -       |                                 |   |   | -                         |   |   |   | - |   |   |   | (140 | ) |
| Dividends paid                                               |   |                                       | (2,696  | )      |                          |   | -       |                                 |   |   | -                         |   |   |   | - |   |   |   | (2,696 | ) |
| Repurchase of common shares                                  |   |                                       | (86,467 | )      |                          |   | -       |                                 |   |   | -                         |   |   |   | - |   |   |   | (86,467 | ) |
| Net cash used in financing activities                        |   |                                       | (89,029 | )      |                          |   | -       |                                 |   |   | -                         |   |   |   | - |   |   |   | (89,029 | ) |
|                                                         |   |                                       |    |   |                          |   |    |                                 |   |   |                      |   |   |   |   |   |   |   |   |   |
| NET CHANGE IN CASH AND CASH EQUIVALENTS                      |   |                                       | (56,993 | )      |                          |   | 14,019  |                                 |   |   | 697                       |   |   |   | - |   |   |   | (42,277 | ) |
| CASH AND CASH EQUIVALENTS, beginning of period               |   |                                       | 73,998  |   |                          |   | 95,048  |                                 |   |   | 11,999                    |   |   |   | - |   |   |   | 181,045 |   |
| CASH AND CASH EQUIVALENTS, end of period                     |   | $                                          | 17,005  |   |                          | $      | 109,067 |                                 |   | $      | 12,696                    |   |   | $ | - |   |   | $ | 138,768 |   |

----

| Condensed Consolidating Statements of Operations (Unaudited)                   |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |
|--------------------------------------------------------------------------------|--------|--------------------------------------------|--------|--------|-------------------------------|--------|--------|--------------------------------------|--------|--------|---------------------------|--------|--------|
|                                                                           |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |   |   |
| (In thousands)                                                                 |   | Three Months Ended March 31, 2009          |   |
|                                                                           |   | Core Laboratories N.V. (Parent/ Guarantor) |   |   | Core Laboratories LP (Issuer) |   |   | Other Subsidiaries (Non- Guarantors) |   |   | Consolidating Adjustments |   |   | Consolidated Total |   |
| REVENUES                                                                       |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |   |   |
| Operating revenues                                                             |   | $                                          | -      |   |                          | $      | 45,134 |                                 |   | $      | 133,742                   |   |   | $ | - |   |   | $ | 178,876 |   |
| Intercompany revenues                                                          |   |                                       | 343    |   |                          |   | 6,599  |                                 |   |   | 30,000                    |   |   |   | (36,942 | ) |   |   | - |   |
| Earnings from consolidated affiliates                                          |   |                                       | 30,287 |   |                          |   | -      |                                 |   |   | 92,653                    |   |   |   | (122,940 | ) |   |   | - |   |
| Total revenues                                                                 |   |                                       | 30,630 |   |                          |   | 51,733 |                                 |   |   | 256,395                   |   |   |   | (159,882 | ) |   |   | 178,876 |   |
|                                                                           |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |   |   |   |   |   |   |   |
| OPERATING EXPENSES                                                             |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |   |   |   |   |   |   |   |
| Operating costs                                                                |   |                                       | 312    |   |                          |   | 23,605 |                                 |   |   | 92,115                    |   |   |   | - |   |   |   | 116,032 |   |
| General and administrative expenses                                            |   |                                       | 3,460  |   |                          |   | 5,810  |                                 |   |   | 4                         |   |   |   | - |   |   |   | 9,274 |   |
| Depreciation and amortization                                                  |   |                                       | -      |   |                          |   | 1,369  |                                 |   |   | 4,339                     |   |   |   | - |   |   |   | 5,708 |   |
| Other expense (income), net                                                    |   |                                       | (11    | )      |                          |   | 4,135  |                                 |   |   | 27,568                    |   |   |   | (30,449 | ) |   |   | 1,243 |   |
|                                                                           |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |   |   |   |   |   |   |   |
| Operating income                                                               |   |                                       | 26,869 |   |                          |   | 16,814 |                                 |   |   | 132,369                   |   |   |   | (129,433 | ) |   |   | 46,619 |   |
| Interest expense                                                               |   |                                       | 475    |   |                          |   | 3,305  |                                 |   |   | 20                        |   |   |   | - |   |   |   | 3,800 |   |
|                                                                           |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |   |   |   |   |   |   |   |
| Income before income tax expense                                               |   |                                       | 26,394 |   |                          |   | 13,509 |                                 |   |   | 132,349                   |   |   |   | (129,433 | ) |   |   | 42,819 |   |
| Income tax expense (benefit)                                                   |   |                                       | (2,798 | )      |                          |   | 4,786  |                                 |   |   | 11,592                    |   |   |   | - |   |   |   | 13,580 |   |
|                                                                           |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |   |   |   |   |   |   |   |
| Net income                                                                     |   |                                       | 29,192 |   |                          |   | 8,723  |                                 |   |   | 120,757                   |   |   |   | (129,433 | ) |   |   | 29,239 |   |
| Net income attributable tonon-controlling interest                             |   |                                       | -      |   |                          |   | -      |                                 |   |   | 47                        |   |   |   | - |   |   |   | 47 |   |
| NET INCOME ATTRIBUTABLE     TO CORE LABORATORIES N.V. |   | $                                          | 29,192 |   |                          | $      | 8,723  |                                 |   | $      | 120,710                   |   |   | $ | (129,433 | ) |   | $ | 29,192 |   |

| Condensed Consolidating Statements of Cash Flows (Unaudited)    |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |
|-----------------------------------------------------------------|--------|--------------------------------------------|--------|--------|-------------------------------|--------|--------|--------------------------------------|--------|--------|---------------------------|--------|--------|
|                                                            |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |   |   |
| (In thousands)                                                  |   | Three Months Ended March 31, 2009          |   |
|                                                            |   | Core Laboratories N.V. (Parent/ Guarantor) |   |   | Core Laboratories LP (Issuer) |   |   | Other Subsidiaries (Non- Guarantors) |   |   | Consolidating Adjustments |   |   | Consolidated Total |   |
|                                                            |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |   |   |
| Net cash provided by operating activities                       |   | $                                          | 18,135 |   |                          | $      | 30,285 |                                 |   | $      | 1,698                     |   |   | $ | - |   |   | $ | 50,118 |   |
|                                                            |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |   | - |   |   |   |   |   |
| CASH FLOWS FROM INVESTING ACTIVITIES:                           |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |   |   |   |   |
| Capital expenditures                                            |   |                                       | -      |   |                          |   | (486   | )                                    |   |   | (2,169                    | )      |   |   | - |   |   |   | (2,655 | ) |
| Patents and other intangibles                                   |   |                                       | -      |   |                          |   | -      |                                 |   |   | (96                       | )      |   |   | - |   |   |   | (96 | ) |
| Proceeds from sale of assets                                    |   |                                       | -      |   |                          |   | 2      |                                 |   |   | 84                        |   |   |   | - |   |   |   | 86 |   |
| Premiums on life insurance                                      |   |                                       | -      |   |                          |   | (582   | )                                    |   |   | -                         |   |   |   | - |   |   |   | (582 | ) |
| Net cash used in investing activities                           |   |                                       | -      |   |                          |   | (1,066 | )                                    |   |   | (2,181                    | )      |   |   | - |   |   |   | (3,247 | ) |
|                                                            |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |   |   |   |   |   |   |   |
| CASH FLOWS FROM FINANCING ACTIVITIES:                           |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |   |   |   |   |
| Stock options exercised                                         |   |                                       | 169    |   |                          |   | -      |                                 |   |   | -                         |   |   |   | - |   |   |   | 169 |   |
| Excess tax benefit from stock-based payments                    |   |                                       | 45     |   |                          |   | -      |                                 |   |   | -                         |   |   |   | - |   |   |   | 45 |   |
| Dividends paid                                                  |   |                                       | (2,302 | )      |                          |   | -      |                                 |   |   | -                         |   |   |   | - |   |   |   | (2,302 | ) |
| Repurchase of common shares                                     |   |                                       | (7,885 | )      |                          |   | -      |                                 |   |   | -                         |   |   |   | - |   |   |   | (7,885 | ) |
| Net cash used in financing activities                           |   |                                       | (9,973 | )      |                          |   | -      |                                 |   |   | -                         |   |   |   | - |   |   |   | (9,973 | ) |
|                                                            |   |                                       |   |   |                          |   |   |                                 |   |   |                      |   |   |   |   |   |   |   |   |   |
| NET CHANGE IN CASH AND CASH   EQUIVALENTS        |   |                                       | 8,162  |   |                          |   | 29,219 |                                 |   |   | (483                      | )      |   |   | - |   |   |   | 36,898 |   |
| CASH AND CASH EQUIVALENTS,   beginning of period |   |                                       | 13,347 |   |                          |   | 11,027 |                                 |   |   | 11,764                    |   |   |   | - |   |   |   | 36,138 |   |
| CASH AND CASH EQUIVALENTS,   end of period       |   | $                                          | 21,509 |   |                          | $      | 40,246 |                                 |   | $      | 11,281                    |   |   | $ | - |   |   | $ | 73,036 |   |

----

| *      | 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 ofenhanced 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.                                                                                                           |

| -      | 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 and/or financial 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 in oil producing or consuming countries;                                                                      |
|   |                                                                                                                       |
| -      | level of consumption of oil, gas and petrochemicals by consumers;                                                          |
|   |                                                                                                                       |
| -      | changes in existing laws or regulations;                                                                                   |
|   |                                                                                                                       |
| -      | the business opportunities (or lack thereof) that may be presented to and pursued by us; and                               |
|   |                                                                                                                       |
| -      | availability of services and materials for our clients to grow their capital expenditures.                                 |

----

| (Unaudited)                                                              |   | Three Months Ended March 31, |    |   | % Change |   |
|--------------------------------------------------------------------------|--------|------------------------------|---------|--------|----------|--------|
|                                                                     |   | 2010                         |    |   | 2009     |   |   |   | 2010/2009 |   |
| REVENUES:                                                                |   |                         |    |   |     |   |   |
| Services                                                                 |   | $                            | 143,442 |   |     |   | 76 | %  |   | $ | 141,692 |   |   |   | 79 | %  |   |   | 1 | %  |
| Product sales                                                            |   |                         | 44,895  |   |     |   | 24 | %  |   |   | 37,184 |   |   |   | 21 | %  |   |   | 21 | %  |
|   Total revenues                                               |   |                         | 188,337 |   |     |   | 100 | %  |   |   | 178,876 |   |   |   | 100 | %  |   |   | 5 | %  |
| OPERATING EXPENSES:                                                      |   |                         |    |   |     |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Cost of services*                                                        |   |                         | 95,357  |   |     |   | 66 | %  |   |   | 88,296 |   |   |   | 62 | %  |   |   | 8 | %  |
| Cost of product sales*                                                   |   |                         | 30,231  |   |     |   | 67 | %  |   |   | 27,736 |   |   |   | 75 | %  |   |   | 9 | %  |
|   Total cost of services and product sales                     |   |                         | 125,588 |   |     |   | 67 | %  |   |   | 116,032 |   |   |   | 65 | %  |   |   | 8 | %  |
| General and administrative expenses                                      |   |                         | 6,380   |   |     |   | 3 | %  |   |   | 9,274 |   |   |   | 5 | %  |   |   | (31 | %) |
| Depreciation and amortization                                            |   |                         | 5,754   |   |     |   | 3 | %  |   |   | 5,708 |   |   |   | 3 | %  |   |   | 1 | %  |
| Other expense (income), net                                              |   |                         | (798    | )      |     |   | - |   |   |   | 1,243 |   |   |   | 1 | %  |   |   | (164 | %) |
| Operating income                                                         |   |                         | 51,413  |   |     |   | 27 | %  |   |   | 46,619 |   |   |   | 26 | %  |   |   | 10 | %  |
| Interest expense                                                         |   |                         | 4,059   |   |     |   | 2 | %  |   |   | 3,800 |   |   |   | 2 | %  |   |   | 7 | %  |
| Income before income tax expense                                         |   |                         | 47,354  |   |     |   | 25 | %  |   |   | 42,819 |   |   |   | 24 | %  |   |   | 11 | %  |
| Income tax expense                                                       |   |                         | 15,068  |   |     |   | 8 | %  |   |   | 13,580 |   |   |   | 8 | %  |   |   | 11 | %  |
| Net income                                                               |   |                         | 32,286  |   |     |   | 17 | %  |   |   | 29,239 |   |   |   | 16 | %  |   |   | 10 | %  |
| Net income attributable tonon-controlling interest                       |   |                         | 81      |   |     |   | - |   |   |   | 47 |   |   |   | - |   |   |   | 72 | %  |
| Net income attributable to    Core Laboratories N.V. |   | $                            | 32,205  |   |     |   | 17 | %  |   | $ | 29,192 |   |   |   | 16 | %  |   |   | 10 | %  |
|                                                                     |   |                         |    |   |     |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| *Percentage based on applicable revenue rather than total revenue        |   |                         |    |   |     |   |   |   |   |

----

|                                          |   | Three Months Ended March 31, |   |
|-----------------------------------------------|--------|------------------------------|--------|
|                                          |   | 2010                         |   |   | 2009 |   |
|                                          |   | (Unaudited)                  |   |
| (Gain) loss on sale of assets                 |   | $                            | (31    | ) |   | $ |  (77 | ) |
| Foreign exchange loss (gain)                  |   |                         | (91    | ) |   |   | 1,888 |   |
| Interest income                               |   |                         | (12    | ) |   |   | (39 | ) |
| Rents and royalties                           |   |                         | (473   | ) |   |   | (341 | ) |
| Other, net                                    |   |                         | (191   | ) |   |   | (188 | ) |
|   Total other expense (income), net |   | $                            | (798   | ) |   | $ | 1,243 |   |

|                          |   | Three Months Ended March 31, |   |
|-------------------------------|--------|------------------------------|--------|
|                          |   | 2010                         |   |   | 2009 |   |
|                          |   | (Unaudited)                  |   |
| British Pound                 |   | $                            | 258    |   |   | $ | 72 |   |
| Canadian Dollar               |   |                         | (385   | ) |   |   | 348 |   |
| Euro                          |   |                         | (30    | ) |   |   | 163 |   |
| Kazakhstan Tenge              |   |                         | 1      |   |   |   | 167 |   |
| Malaysian Ringgit             |   |                         | (73    | ) |   |   | 136 |   |
| Mexican Peso                  |   |                         | 108    |   |   |   | 132 |   |
| Russian Ruble                 |   |                         | 54     |   |   |   | 596 |   |
| Other currencies, net         |   |                         | (24    | ) |   |   | 274 |   |
|   Total loss (gain) |   | $                            | (91    | ) |   | $ | 1,888 |   |

----

|                                                                                                        |   | Three Months EndedMarch 31, |    |   | % Change |   |
|-------------------------------------------------------------------------------------------------------------|--------|-----------------------------|---------|--------|----------|--------|
|                                                                                                        |   | 2010                        |    |   | 2009     |   |   |   | 2010/2009 |   |
| Revenues:                                                                                                   |   | (Unaudited)                 |    |   |     |   |   |
| Reservoir Description                                                                                       |   | $                           | 104,093 |   |     | $      | 102,523 |   |   |   | 2 | %  |
| Production Enhancement                                                                                      |   |                        | 68,844  |   |     |   | 63,100 |   |   |   | 9 | %  |
| Reservoir Management                                                                                        |   |                        | 15,400  |   |     |   | 13,253 |   |   |   | 16 | %  |
|    Consolidated                                                                              |   | $                           | 188,337 |   |     | $      | 178,876 |   |   |   | 5 | %  |
|                                                                                                        |   |                        |    |   |     |   |   |   |   |   |   |   |
| Operating income:                                                                                           |   |                        |    |   |     |   |   |   |   |   |   |   |
| Reservoir Description                                                                                       |   | $                           | 25,084  |   |     | $      | 24,752 |   |   |   | 1 | %  |
| Production Enhancement                                                                                      |   |                        | 20,943  |   |     |   | 18,324 |   |   |   | 14 | %  |
| Reservoir Management                                                                                        |   |                        | 5,620   |   |     |   | 3,478 |   |   |   | 62 | %  |
| Corporate and Other1                                                                                        |   |                        | (234    | )      |     |   | 65 |   |   | NM |   |
|    Consolidated                                                                              |   | $                           | 51,413  |   |     | $      | 46,619 |   |   |   | 10 | %  |
|                                                                                                        |   |                        |    |   |     |   |   |   |   |   |   |   |
| (1) "Corporate and Other" represents those items that are not directly related to a particular segment |   |
| "NM"  means not meaningful                                                                             |   |

----

|                                      |   | Three Months EndedMarch 31, |   |   | % Change |   |
|-------------------------------------------|--------|-----------------------------|--------|--------|----------|--------|
|                                      |   | 2010                        |   |   | 2009     |   |   |   | 2010/2009 |   |
| Free cash flow calculation:               |   | (Unaudited)                 |   |   |     |   |   |
| Net cash provided by operating activities |   | $                           | 62,366 |   |     | $      | 50,118 |   |   |   | 24 | %  |
| Less:  capital expenditures     |   |                        | 6,155  |   |     |   | 2,655 |   |   |   | 132 | %  |
|     Free cash flow    |   | $                           | 56,211 |   |     | $      | 47,463 |   |   |   | 18 | %  |

|                                         |   | Three Months EndedMarch 31, |    |   | % Change |   |
|----------------------------------------------|--------|-----------------------------|---------|--------|----------|--------|
|                                         |   | 2010                        |    |   | 2009     |   |   |   | 2010/2009 |   |
| Cash provided by/(used in):                  |   | (Unaudited)                 |    |   |     |   |   |
|     Operating activities |   | $                           | 62,366  |   |     | $      | 50,118 |   |   |   | 24 | %  |
|     Investing activities |   |                        | (15,614 | )      |     |   | (3,247 | ) |   |   | 381 | %  |
|     Financing activities |   |                        | (89,029 | )      |     |   | (9,973 | ) |   |   | 793 | %  |
| Net change in cash and cash equivalents      |   | $                           | (42,277 | )      |     | $      | 36,898 |   |   |   | (215 | %) |

----

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| 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) |   |
|-------------------------|--------|----------------------------------|---------|--------|------------------------------|--------|--------|--------------------------------------------------------------------------|--------|--------|--------------------------------------------------------------------------|--------|
| January 1-31, 2010      |   |                             | 664,373 |   |                         | $      | 122.89 |                                                                     |   |   | 664,373                                                                  |   |   |   | 3,341,484 |   |
| February 1-28, 2010 (1) |   |                             | 23,364  |   |                         |   | 118.34 |                                                                     |   |   | 23,364                                                                   |   |   |   | 3,321,561 |   |
| March 1-31, 2010 (2)    |   |                             | 16,165  |   |                         |   | 127.42 |                                                                     |   |   | 16,165                                                                   |   |   |   | 3,325,746 |   |
| Total                   |   |                             | 703,902 |   |                         | $      | 122.84 |                                                                     |   |   | 703,902                                                                  |   |   |   |   |   |

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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)                                                                                    | Form F-1, September 20, 1995 (File No. 000-26710)                                    |
| 3.2         | -      | Amendments to the Articles of Association of Core Laboratories N.V.                                                                                                              | DEF 14A filed onMay 17, 2006 for Annual Meeting of Shareholders (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                                                                   |
|        |   |                                                                                                                                                                             |                                                                                 |

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|   | CORE LABORATORIES N.V. |
|--------|------------------------|
|   | By:                    | Core Laboratories International B.V., its |
|   |                   | Managing Director |
|   |                   |   |
| Date:  | April 29, 2010         | By: | /s/ Richard L. Bergmark |
|   |                   | Richard L. Bergmark |
|   |                   | Chief Financial Officer |
|   |                   | (Duly Authorized Officer and |
|   |                   | Principal Financial Officer) |

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