11-K

                                  UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                                    FORM 11-K



(Mark One)


   | X |   ANNUAL REPORT PURSUANT TO SECTION 15 (d) OF THE SECURITIES
           EXCHANGE ACT OF 1934

           For the fiscal year ended December 31, 2000

                                OR


   | _ |   TRANSITION REPORT PURSUANT TO SECTION 15 (d) OF THE SECURITIES
           EXCHANGE ACT OF 1934 (NO FEE REQUIRED)

           For the transition period from _______________ to __________________

                        Commission File Number 001-14273

A.   Full title of the plan and the address of the plan, if different from that
     of the issuer named below:

           CORE LABORATORIES, INC. PROFIT SHARING AND RETIREMENT PLAN
                               6316 Windfern Road
                              Houston, Texas 77040

B.   Name and issuer of the securities held pursuant to the plan and the address
     of its principal executive office:

                             Core Laboratories N.V.
                                 Herengracht 424
                                1017 BZ Amsterdam
                                 The Netherlands
















                  CORE LABORATORIES, INC.

                  PROFIT SHARING AND RETIREMENT PLAN

                  FINANCIAL STATEMENTS

                  AS OF DECEMBER 31, 2000

                  TOGETHER WITH AUDITORS' REPORT





                             CORE LABORATORIES, INC.

                       PROFIT SHARING AND RETIREMENT PLAN


                          INDEX TO FINANCIAL STATEMENTS

                            AND SUPPLEMENTAL SCHEDULE

                                DECEMBER 31, 2000





                                                                                                 Page(s)

                                                                                                 
Report of Independent Public Accountants.........................................................    1

Financial Statements-
   Statements of Net Assets Available for Plan Benefits as of December 31, 2000 and 1999.........    2
   Statement of Changes in Net Assets Available for Plan Benefits for the Year Ended
     December 31, 2000...........................................................................    3

Notes to Financial Statements....................................................................   4-8

Supplemental Schedule-
   Schedule of Assets (Held at End of Year), as of December 31, 2000.............................    9










                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS






To the Plan Administrator of the
Core Laboratories, Inc. Profit Sharing
and Retirement Plan:

We have audited the accompanying statements of net assets available for plan
benefits of the Core Laboratories, Inc. Profit Sharing and Retirement Plan (the
"Plan") as of December 31, 2000 and 1999, and the related statement of changes
in net assets available for plan benefits for the year ended December 31, 2000.
These financial statements and the supplemental schedule referred to below are
the responsibility of the Plan Administrator. Our responsibility is to express
an opinion on these financial statements and supplemental schedule based on our
audits.

We conducted our audits in accordance with auditing standards generally accepted
in the United States. Those standards require that we plan and perform the audit
to obtain reasonable assurance about whether the financial statements are free
of material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements. An audit
also includes assessing the accounting principles used and significant estimates
made by management, as well as evaluating the overall financial statement
presentation. We believe that our audits provide a reasonable basis for our
opinion.

In our opinion, the financial statements referred to above present fairly, in
all material respects, the net assets available for plan benefits of the Plan as
of December 31, 2000 and 1999, and the changes in net assets available for plan
benefits for the year ended December 31, 2000, in conformity with accounting
principles generally accepted in the United States.

Our audits were performed for the purpose of forming an opinion on the basic
financial statements taken as a whole. The supplemental schedule of assets (held
at end of year) as of December 31, 2000, is presented for purposes of additional
analysis and is not a required part of the basic financial statements but is
supplementary information required by the Department of Labor's Rules and
Regulations for Reporting and Disclosure under the Employee Retirement Income
Security Act of 1974. The supplemental schedule has been subjected to the
auditing procedures applied in the audits of the basic financial statements and,
in our opinion, is fairly stated in all material respects in relation to the
basic financial statements taken as a whole.




                                            ARTHUR ANDERSEN LLP


Houston, Texas
June 25, 2001









                                       1



                             CORE LABORATORIES, INC.

                       PROFIT SHARING AND RETIREMENT PLAN


              STATEMENTS OF NET ASSETS AVAILABLE FOR PLAN BENEFITS

                        AS OF DECEMBER 31, 2000 AND 1999





                                                   2000                1999
                                                   ----                ----
                                                           
ASSETS
Investments, at fair value:
      Life insurance                          $     52,719       $     50,646
      Interest-bearing cash                         33,724            433,496
      Collective trust fund                      4,466,396          4,635,805
      Common stock                              10,450,036          8,162,300
      Mutual funds                              26,316,017         26,320,437
      Participant loans                            977,016            976,412
                                              ------------       ------------
                                                42,295,908         40,579,096
                                              ------------       ------------

Receivables:
      Participant contributions                     84,461            160,388
      Company contributions                         42,817             85,618
      Other receivables                            249,755             27,557
Cash, noninterest-bearing                          727,108            301,473
                                              ------------       ------------
                                                 1,104,141            575,036
                                              ------------       ------------
        Total assets                            43,400,049         41,154,132
                                              ------------       ------------

LIABILITIES
      Excess contributions payable                       -            415,388
      Other payables                               203,239             23,024
                                              ------------       ------------
        Total liabilities                          203,239            438,412
                                              ------------       ------------

NET ASSETS AVAILABLE

      FOR PLAN BENEFITS                       $ 43,196,810       $ 40,715,720
                                              ============       ============






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

                                       2



                             CORE LABORATORIES, INC.

                       PROFIT SHARING AND RETIREMENT PLAN


         STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR PLAN BENEFITS

                      FOR THE YEAR ENDED DECEMBER 31, 2000






                                                                             2000
                                                                             ----
                                                                    
ADDITIONS TO NET ASSETS ATTRIBUTED TO:
Investment income-
      Interest and dividends                                           $  1,604,187
      Net appreciation (depreciation) in fair value of investments:
         Life insurance                                                        (697)
         Common stock                                                     3,617,580
         Mutual funds                                                    (1,981,905)
                                                                       ------------
                                                                          3,239,165
                                                                       ------------
Contributions:
         Employee                                                         3,164,240
         Rollovers                                                          233,053
         Employer                                                         1,197,690
                                                                       ------------
                                                                          4,594,983
Transfers from other plans                                                2,732,375
                                                                       ------------
            Total additions                                              10,566,523
                                                                       ------------

DEDUCTIONS FROM NET ASSETS ATTRIBUTED TO:
Withdrawals and retirement benefits                                       8,009,311
Administrative expenses                                                      76,122
                                                                       ------------
            Total deductions                                              8,085,433
                                                                       ------------

NET INCREASE                                                              2,481,090
NET ASSETS AVAILABLE FOR PLAN BENEFITS
         Beginning of year                                               40,715,720
                                                                       ------------

         End of year                                                   $ 43,196,810
                                                                       ============






     The accompanying notes to financial statements are an integral part of
                           this financial statement.

                                       3



                             CORE LABORATORIES, INC.

                       PROFIT SHARING AND RETIREMENT PLAN


                          NOTES TO FINANCIAL STATEMENTS

                           DECEMBER 31, 2000 and 1999



1.  SUMMARY OF SIGNIFICANT PLAN PROVISIONS:

The Core Laboratories, Inc. Profit Sharing and Retirement Plan (the "Plan" or
"Core Lab Plan") was established by Core Laboratories, Inc. (the "Company"),
effective October 1, 1994.  The following description of key features of the
Plan provides only general information.  Participants should refer to the Plan
document for a more complete explanation of the Plan's provisions.

Plan Administrator and Trustee

The Company is the Plan administrator as defined under the Employee Retirement
Income Security Act of 1974, as amended ("ERISA"). The Company contracts with
The 401K Company (the "Recordkeeper") to maintain the Plan's participant account
balances. Austin Trust Company (the "Trustee") is the trustee of all investments
held by the Plan. The issuing fund houses are custodians of the mutual fund
investments and Pershing Division of Donaldson, Lufkin & Jenrette Securities
Corporation is custodian of Core Laboratories N.V. common stock ("Company Common
Stock").

Eligibility

Substantially all of the Company's employees are eligible to participate in the
Plan. Participation may commence upon the later of the first day of the calendar
quarter coincident with or following such eligible employee's date of hire or
the date on which such employee attains the age of 21, except for Owen Oil
Tools, Inc. employees who may participate after six months of service and
attaining the age of 21.

Contributions

The Plan allows participants to contribute up to 15 percent of their
compensation, as defined by the Plan, on a pretax basis. The Company makes
matching contributions to the account of each participant up to four percent of
each participant's compensation. The Company may, at its discretion, also
contribute for a Plan year an additional amount with respect to each participant
who has completed one year of service and is employed by the Company on the last
day of such Plan year. The Company's board of directors shall determine whether
such contribution shall be made for a Plan year. No additional contributions
were made to the Plan for 2000.

From 1994 to 1997 participant contributions included excess contributions which
were quantified in 1999 and were refunded to participants in 2000, as the
contributions were determined to be received from certain employees ineligible
to participate. A liability for excess contributions payable in the amount of
$415,388 was reflected in the statements of net assets available for plan
benefits as of December 31, 1999.

Vesting

Participants are fully vested in their contributions and related earnings/losses
and vest in Company contributions and related earnings/losses at the rate of 20
percent for each year of service. Upon death, total and permanent physical or
mental disability, or normal retirement, all such participants become fully
vested in Company contributions and related earnings/losses.

                                       4



Investment Program

Participants may invest their contributions, the Company's matching
contributions and any additional Company contributions in any of ten mutual
funds, one collective trust fund and Company Common Stock.

Contributions may be invested in one fund or divided among two or more funds.
Participants may transfer some or all of the balances out of any fund into one
or any combination of the other funds on a daily basis. Participants who are
seeking guidance in their investment direction can choose from four Asset
Allocation Models: Short-Term Model (1-5 years); Medium-Term Model (5-10 years);
Long-Term Model (10-15 years) or Longer-Term Model (15+ years) which represent a
designated blend of the available mutual funds. Participants who select one of
the Asset Allocation Models can also choose to invest a portion of their account
balances in the Company Common Stock.

Administrative Expenses

The Plan pays all administrative expenses.

Loans

The Plan permits participants to borrow a minimum of $1,000 up to a maximum
amount equal to the lesser of $50,000 or 50 percent of their vested account
balances in the Plan. New loans bear interest at treasury rates plus four
percent and are repaid through payroll deductions over a period not to exceed
five years.

Withdrawals and Forfeitures

A participant may elect to receive benefit payments through any one of the
several methods provided by the Plan upon termination, retirement or financial
hardship. Participants can withdraw their after-tax contributions, if any from
previous plans, in cash without being suspended from making additional
contributions to the Plan. Participants may also make an in-service withdrawal
at age 59 1/2 of their vested account balance.

Hardship withdrawals are allowed in the event of immediate and heavy financial
need, subject to the provisions of the Internal Revenue Code of 1986, as amended
(the "Code"). The participants can withdraw up to 100 percent of their pre-tax
contributions and are suspended for at least 12 months from making additional
contributions to the Plan.

Upon termination of employment with the Company, any unvested Company
contributions and related earnings/losses are forfeited. Participants returning
to the Company within 60 months of their initial termination are entitled to
have their previous account balance reinstated by the Company. During 2000,
approximately $516,486 of forfeited balances were utilized to reduce the
Company's contributions. At December 31, 2000 and 1999, forfeited amounts of
$215,684 and $627,468, respectively, were available to reduce future employer
contributions.

Priorities Upon Plan Termination

Although it has not expressed any intent to do so, the Company has the right
under the Plan to discontinue its contributions at any time and to terminate the
Plan subject to the provisions of ERISA. In the event of Plan termination,
participants will become 100 percent vested in their accounts.



                                       5



2.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:

Basis of Accounting

The financial statements of the Plan are presented under the accrual method of
accounting. Distributions to participants are recorded when paid.

Investment Valuation

Pursuant to the Department of Labor Rules and Regulations for Reporting and
Disclosure under ERISA, the Plan reports the investments in the financial
statements at fair value in accordance with accounting principles generally
accepted in the United States.

Investments in mutual funds and common stock are reported at fair value based on
quoted market prices. The fair value of the investment in the collective trust
fund is based on the market value of the underlying assets, as determined by the
investment issuer. The collective trust fund holds investment contracts which
are recorded at contract value, which approximates fair value. The average yield
of the collective trust fund for the year ended December 31, 2000, was 6.32
percent. Investment income is recorded as earned. Purchases and sales are
recorded on a trade-date basis.

Net realized gains or losses on the sale of investments and unrealized
appreciation (depreciation) in the fair value of investments are recorded in the
accompanying statement of changes in net assets available for plan benefits as
net appreciation (depreciation) in fair value of investments.

Use of Estimates

The preparation of financial statements in conformity with accounting principles
generally accepted in the United States requires the use of estimates and
assumptions that affect the accompanying financial statements and disclosures.
Actual results could differ from those estimates.

3.  INVESTMENTS:

The following presents investments that represent five percent or more of the
Plan's net assets as of December 31, 2000 and 1999.

2000-
  IRT Stable Value Fund                                $  4,466,396
  Core Laboratories N.V. Common Stock                    10,450,036
  Washington Mutual Investors Fund                        5,879,472
  EuroPacific Growth Fund                                 2,218,118
  Franklin Balance Sheet Investment Fund-Class A          3,219,696
  Lord Abbett Developing Growth Fund                      3,137,453
  Putnum Growth Opportunities                             3,229,793
  Vanguard 500 Index Fund                                 2,866,159

1999-
  IRT Stable Value Fund                                $  4,635,805
  Core Laboratories N.V. Common Stock                     8,162,300
  The Bond Fund of America                                2,352,429
  Washington Mutual Investors Fund                        6,062,841
  EuroPacific Growth Fund                                 2,626,177
  Franklin Balance Sheet Investment Fund-Class A          2,792,773
  Massachusetts Investors Trust-Class A                   3,657,841
  MFS Emerging Growth Fund-Class A                        3,395,288


                                       6



4.   RISKS AND UNCERTAINTIES:

The Plan provides for various investments in a collective trust fund, mutual
funds and common stock. Investment securities, in general, are exposed to
various risk, such as interest rate, credit and overall market volatility risks.
Due to the level of risk associated with certain investment securities, it is
reasonably possible that changes in the values of investment securities will
occur in the near term.


5.   TAX STATUS:

The Plan obtained its latest determination letter on November 12, 1996, in which
the Internal Revenue Service stated that the Plan, as then designed, was in
compliance with the applicable requirements of the Code. The Plan has been
amended since receiving the determination letter. However, the Company believes
that the Plan is currently designed and being operated in compliance with the
applicable requirements of the Code. Therefore, the Company believes that the
Plan was qualified and tax-exempt as of December 31, 2000 and 1999.


6.   RECONCILIATION OF FORM 5500:

Benefits payable to participants are included in net assets available for plan
benefits and are not reflected as a liability in the financial statements. As of
December 31, 2000 and 1999, the benefits payable to participants total $496,190
and $285,181, respectively. The following is a reconciliation of net assets
available for plan benefits per the financial statements to the Form 5500 as of
December 31, 2000 and 1999:



                                                                            2000              1999
                                                                       -------------     ------------
                                                                                   
Net assets available for plan benefits per the financial statements    $ 43,196,810      $ 40,715,720
   Less-
     Distributions payable to participants                                 (496,190)         (285,181)
                                                                       ------------      ------------

Net assets available for plan benefits per the Form 5500               $ 42,700,620      $ 40,430,539
                                                                       ============      ============



The following is a reconciliation of withdrawals and retirement benefits per the
financial statements to the Form 5500 for the year ended December 31, 2000:




                                                                                      
Withdrawals and retirement benefits per the financial statements                         $  8,009,311
   Add-
     Distributions payable to participants at December 31, 2000                               496,190
   Less-
     Distributions payable to participants at December 31, 1999                              (285,181)
                                                                                         ------------

Withdrawals and retirement benefits per the Form 5500                                    $  8,220,320
                                                                                         ============


Amounts allocated to withdrawing participants are recorded on the Form 5500 for
benefit claims that have been processed and approved for payment prior to
December 31, but not yet paid as of that date.


                                       7



7.  TRANSFERS FROM OTHER PLANS:

Effective January 31, 2000, the Reservoirs Inc. 401(k) Plan was merged with the
Core Lab Plan, transferring assets of $2,553,866.

Effective February 29, 2000, the TomoSeis 401(k) Plan was merged with the Core
Lab Plan, transferring assets of $178,509.

8.  RELATED-PARTY TRANSACTIONS:

The Plan provides for investment in shares of the Company Common Stock. As the
Company is the Plan sponsor, these transactions qualify as party-in-interest
transactions.

9.  SUBSEQUENT EVENT:

Effective May 1, 2001, the Plan was amended to reflect a change in the Company's
name and legal status from Core Laboratories, Inc. to Core Laboratories LP.  The
Plan's new name is the Core Laboratories Profit Sharing and Retirement Plan.
In addition, Owen Oil Tools, Inc. was renamed Owen Oil Tools LP effective
May 1, 2001.


                                       8



                                                                        SCHEDULE

                             CORE LABORATORIES, INC.

                       PROFIT SHARING AND RETIREMENT PLAN

                    SCHEDULE OF ASSETS (HELD AT END OF YEAR)

                             AS OF DECEMBER 31, 2000





          Identity of Issue                       Description of Investment                 Cost      Current Value
 -----------------------------------      ---------------------------------------------     -----     -------------
                                                                                             
Conseco Life Insurance Company           Cash surrender value of life insurance
                                         policies                                            (a)      $      52,719

Alliance Capital Management Corp.        Alliance Capital Reserves                           (a)             33,663

The American Funds Group                 The Cash Management Trust of America                (a)                 61

Institution Trust Company                IRT Stable Value Fund                               (a)          4,466,396

Core Laboratories N.V.*                  Core Laboratories N.V.
                                               Common Stock                                  (a)         10,450,036

The American Funds Group                 The Bond Fund of America                            (a)          2,128,433

The American Funds Group                 Washington Mutual Investors Fund                    (a)          5,879,472

The American Funds Group                 EuroPacific Growth Fund                             (a)          2,218,118

Franklin Templeton Investments           Templeton Foreign Smaller Companies Fund -
                                         Class A                                             (a)            969,039

Franklin Templeton Investments           Templeton Developing Markets Trust - Class A        (a)            899,192

Franklin Templeton Investments           Franklin Balance Sheet Investment Fund -
                                         Class A                                             (a)          3,219,696

Franklin Templeton Investments           Franklin Real Estate Securities Fund - Class A      (a)          1,768,662

Lord Abbett & Company                    Lord Abbett Developing Growth Fund                  (a)          3,137,453

Putnum Investments                       Putnum Growth Opportunities                         (a)          3,229,793

The Vanguard Group                       Vanguard 500 Index Fund                             (a)          2,866,159

Core Laboratories, Inc. Profit           Participant Loans (interest rates ranging from
      Sharing and Retirement Plan*       3.00% to 10.89%)                                    (a)            977,016
                                                                                                      -------------

                                         Total assets (held at end of year)                           $  42,295,908
                                                                                                      =============







*Party-in-interest
(a)  Cost omitted for participant directed investments.

                                       9




                                   SIGNATURES



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




Dated:  June 27, 2001



                                        CORE LABORATORIES, INC.
                                        PROFIT SHARING AND RETIREMENT PLAN

                                        By:   /s/ Richard L. Bergmark
                                         ---------------------------------------
                                              Richard L. Bergmark
                                              Executive Vice President and
                                              Chief Financial Officer

                                       10






                                INDEX TO EXHIBIT


Exhibit
Number

23.1        - Consent of Independent Public Accountants


                                       11

EX-23

                                                                    EXHIBIT 23.1








                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS






As independent public accountants, we hereby consent to the incorporation by
reference of our report dated June 25, 2001, included in this Core Laboratories,
Inc. Profit Sharing and Retirement Plan (the "Plan") Annual Report on Form 11-K,
for the year ended December 31, 2000, into the previously filed Form S-8
Registration Statement File No. 333-43859.




ARTHUR ANDERSEN LLP


Houston, Texas
June 27, 2001



                                       12