SMITH INTERNATIONAL INC
8-K, 1999-07-29
MISCELLANEOUS CHEMICAL PRODUCTS
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<PAGE>   1




                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549



                                    FORM 8-K

                                 CURRENT REPORT
                Pursuant to Section 13 or 15(d) of the Securities
                              Exchange Act of 1934



                                  JULY 29, 1999
                                (Date of Report)

                            SMITH INTERNATIONAL, INC.
             (Exact name of Registrant as specified in its charter)


     DELAWARE                        1-8514                   95-3822631
(State or other                   (Commission               (I.R.S. Employer
 jurisdiction of                   File Number)            Identification No.)
(incorporation)

                               16740 HARDY STREET
                                 P.O. BOX 60068
                              HOUSTON, TEXAS 77205
               (Address of principal executive offices) (Zip Code)

                                 (281) 443-3370
                         (Registrant's telephone number,
                              including area code)

                                 NOT APPLICABLE
          (Former name or former address, if changed since last report)

<PAGE>   2

         ITEM 2. ACQUISITION OR DISPOSITION OF ASSETS

                  On July 14, 1999, Smith International, Inc. (the "Company")
         and Schlumberger Limited ("Schlumberger") formed a drilling fluids
         joint venture pursuant to an Amended and Restated Organization
         Agreement dated July 14, 1999 (the "Agreement"). The Agreement is by
         and among the Company, Smith International Acquisition Corp., M-I
         Purchase Corporation, M-I L.L.C., Smith International Canada Ltd., M-I
         Drilling Fluids Canada, Inc., Schlumberger, Schlumberger Technology
         Corporation, and Schlumberger M-I, Inc. The Company contributed its M-I
         L.L.C. operations whereas Schlumberger contributed its non-U.S. Dowell
         drilling fluids business and paid cash consideration of $280 million to
         the Company. Under the terms of the Agreement, the Company and
         Schlumberger own 60 percent and 40 percent, respectively, of the
         combined operations.

                  A copy of the press release announcing the transaction is
         filed as Exhibit 99.1 and is hereby incorporated herein by reference.

         ITEM 5.  OTHER EVENTS

                  On July 27, 1999, The United States Department of Justice
         filed pleadings with the U.S. District Court in Washington, D.C. asking
         that the Company and Schlumberger be required to show cause why they
         should not be held in criminal and civil contempt for an alleged
         violation of the Consent Decree and Final Order issued in 1994 in
         United States v. Baroid Corporation. The pleadings allege that the
         Company and Schlumberger violated the Consent Decree by closing the
         joint venture on July 14, 1999. The Company strongly denies the claim.
         The Company's position is that the transaction that closed did not
         involve any U.S. drilling fluids assets or business of Schlumberger,
         had no significant impact on U.S. business and, therefore, was not
         subject to the terms of the Consent Decree. The Company anticipates a
         hearing on this matter will take place in the near future.

         ITEM 7. FINANCIAL STATEMENTS AND EXHIBITS

         (a) Financial statements of businesses acquired.
             Separate financial statements are not required under Item 7(a) of
             Form 8-K.

         (b) Pro forma financial information.
             In accordance with Item 7(b)(2) of Form 8-K, the Company will file
             the required proforma financial information by amendment to this
             Form 8-K as soon as practicable, but no later than September 27,
             1999.

         (c) Exhibits.

                 2.1       Amended and Restated Organization Agreement dated
                           July 14, 1999 by and among the Company, Smith
                           International Acquisition Corp., M-I Purchase
                           Corporation, M-I L.L.C., Smith International Canada
                           Ltd., M-I Drilling Fluids Canada, Inc., Schlumberger,
                           Schlumberger Technology Corporation, and Schlumberger
                           MI, Inc.

                 99.1      Press Release issued by Registrant dated July 14,
                           1999.


                 99.2      Press Release issued by Registrant dated July 28,
                           1999.
<PAGE>   3

                                   SIGNATURES

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

                                             SMITH INTERNATIONAL, INC.




Dated: July 28, 1999                   By:   /s/ NEAL S. SUTTON
                                          --------------------------------------
                                             Neal S. Sutton,
                                             Senior Vice President -
                                             Administration, General Counsel
                                             and Secretary


<PAGE>   4

                                  EXHIBIT INDEX

<TABLE>
<CAPTION>
       EXHIBIT
       NUMBER                           DESCRIPTION
       -------                          -----------

<S>                    <C>
         2.1           Amended and Restated Organization Agreement dated July
                       14, 1999 by and among the Company, Smith International
                       Acquisition Corp., M-I Purchase Corporation, M-I L.L.C.,
                       Smith International Canada Ltd., M-I Drilling Fluids
                       Canada, Inc., Schlumberger, Schlumberger Technology
                       Corporation, and Schlumberger MI, Inc.

         99.1          Press Release issued by Registrant dated July 14, 1999.

         99.2          Press Release issued by Registrant dated July 28, 1999.
</TABLE>


<PAGE>   1


                                                                    EXHIBIT 2.1
                                                                  CONFORMED COPY



                              AMENDED AND RESTATED

                             ORGANIZATION AGREEMENT

                                  BY AND AMONG

                           SMITH INTERNATIONAL, INC.,

                     SMITH INTERNATIONAL ACQUISITION CORP.,

                           M-I PURCHASE CORPORATION,

                                  M-I L.L.C.,

                        SMITH INTERNATIONAL CANADA LTD.,

                       M-I DRILLING FLUIDS CANADA, INC.,

                             SCHLUMBERGER LIMITED,

                      SCHLUMBERGER TECHNOLOGY CORPORATION

                                      AND

                             SCHLUMBERGER MI, INC.







                                 JULY 14, 1999



<PAGE>   2


                               TABLE OF CONTENTS


<TABLE>
<S>               <C>                                                                          <C>
                  Article 1. DEFINITIONS AND GENERAL..........................................  2

         1.1      Definitions.................................................................  2
         1.2      Construction................................................................  9
         1.3      References..................................................................  9
         1.4      Headings....................................................................  9

                  Article 2. REORGANIZATION OF M-I AND CONTRIBUTION...........................  9

         2.1      M-I Pre-Closing Reorganization..............................................  9
         2.2      Venture Entities' Charter Documents and Organization........................ 11
         2.3      Ownership of the Venture Entities........................................... 11
         2.4      Schlumberger Transfer of Assets and Liabilities ............................ 11
         2.5      Schlumberger Purchase of Interest in Each Venture Entity ................... 12
         2.6      Venture Entities' Names..................................................... 12
         2.7      Management of Venture Entities.............................................. 12
         2.8      M-I Mexico.................................................................. 13

                  Article 3. THE CLOSING...................................................... 13

         3.1      Execution of the Amended Venture Entity Charter Documents................... 13
         3.2      Payment of the Cash Purchase Price for the Venture Entity Interests......... 13
         3.3      Execution of the Conveyance and Assumption Agreements....................... 13
         3.4      Intellectual Property Licenses.............................................. 14
         3.5      Failure of Consent.......................................................... 15
         3.6      Closing Adjustment.......................................................... 16
         3.7      Delivery.................................................................... 16
         3.8      Adjusting Payments.......................................................... 17
         3.9      Closing Statements.......................................................... 17
         3.10     Closing Date, Effective Time and Second Closing............................. 17

                  Article 4. CERTAIN COVENANTS................................................ 18

         4.1      Employees in General........................................................ 18
         4.2      Payroll..................................................................... 18
         4.3      Employees in Foreign Operations in General.................................. 20
         4.4      Provisions Regarding USNewco Employees...................................... 23
         4.5      Provisions Regarding Foreign Venture Entities' Employees.................... 25
         4.6      USNewco Employee Benefit Programs........................................... 27
         4.7      Foreign Venture Entities' Employee Benefit Programs......................... 30
         4.8      Insurance and Warranty Service.............................................. 35
         4.9      Bulk Sales Acts............................................................. 36
         4.10     Accounts Receivable......................................................... 36
         4.11     Further Actions............................................................. 37
         4.12     Use of Certain Facilities................................................... 38
         4.13     Expenses.................................................................... 38
         4.14     Books of Account and Special Rights......................................... 39
         4.15     Firewalls................................................................... 40
         4.16     Technical and Environmental Committees...................................... 41
         4.17     Post-Closing Technical Support.............................................. 41
</TABLE>



                                       i
<PAGE>   3

<TABLE>
<S>               <C>                                                                          <C>
         4.18     Venture Entity Audits....................................................... 42
         4.19     Transfer Restrictions and Procedures........................................ 42
         4.20     Special Option.............................................................. 44
         4.21     Right of First Refusal...................................................... 45
         4.22     No Dispositions............................................................. 47

                  Article 5. REPRESENTATIONS AND WARRANTIES................................... 47

         5.1      Smith....................................................................... 48
         5.2      SIAC, MIPC and Smith Canada................................................. 49
         5.3      M-I and M-I Canada.......................................................... 50
         5.4      Schlumberger................................................................ 58
         5.5      Schlumberger MI............................................................. 64

                  Article 6. LIABILITIES AND INDEMNIFICATION.................................. 66

         6.1      Venture Entity Indemnification.............................................. 66
         6.2      Smith Indemnification....................................................... 66
         6.3      Schlumberger Indemnification................................................ 68
         6.4      Product Liabilities......................................................... 69
         6.5      Partner Cross-Indemnities................................................... 70
         6.6      Settlement of Indemnities................................................... 70
         6.7      Limitation on Liability..................................................... 73

                  Article 7. CONDITIONS PRECEDENT TO CLOSING.................................. 73

         7.1      Conditions to Each Party's Closing Obligation............................... 73
         7.2      Conditions to the Closing Obligation of Smith............................... 73
         7.3      Conditions to the Closing Obligation of Smith............................... 73

                  Article 8. TERMINATION, AMENDMENT, WAIVER AND MODIFICATION.................. 73

         8.1      Termination................................................................. 73
         8.2      Effect of Termination....................................................... 73
         8.3      Amendment................................................................... 73
         8.4      Extension/Waiver............................................................ 74

                  Article 9. GENERAL PROVISIONS............................................... 74

         9.1      Survival of Representations and Warranties and Certain
                    Indemnification Obligations............................................... 74
         9.2      Governing Law............................................................... 76
         9.3      Assignment.................................................................. 76
         9.4      Counterparts................................................................ 76
         9.5      Notices..................................................................... 76
         9.6      Competition and Confidentiality............................................. 78
         9.7      Litigation and Claim Support................................................ 80
         9.8      Enforcement................................................................. 80
         9.9      Mediation-Arbitration....................................................... 80
         9.10     Entire Agreement............................................................ 81
         9.11     Consents and Approval....................................................... 81
         9.12     Obligations of Schlumberger................................................. 81
</TABLE>



                                       ii
<PAGE>   4


                              AMENDED AND RESTATED
                             ORGANIZATION AGREEMENT


         This Amended and Restated Organization Agreement (as may be
supplemented or amended in accordance with the provisions hereof, this
"Agreement") dated as of July 14, 1999, is by and among Smith International,
Inc., a Delaware corporation ("Smith"), Smith International Acquisition Corp., a
Delaware corporation ("SIAC"), M-I Purchase Corporation, a Delaware corporation
("MIPC"), M-I L.L.C., a Delaware limited liability company ("M-I"), Smith
International Canada Ltd., an Alberta corporation ("Smith Canada"), M-I Drilling
Fluids Canada, Inc., an Alberta corporation ("M-I Canada"), Schlumberger
Limited, a Netherlands Antilles corporation ("Schlumberger"), Schlumberger
Technology Corporation, a Texas corporation ("STC"), and Schlumberger MI, Inc.,
a Delaware corporation ("Schlumberger MI").

                                  WITNESSETH:

         WHEREAS, pursuant to that certain Organization Agreement dated as of
February 5, 1999 (the "Original Agreement"), Smith, SIAC, MIPC, M-I, Smith
Canada, M-I Canada, Schlumberger and Schlumberger Technology Corporation agreed
to combine their businesses that are engaged in producing and marketing drilling
fluids, drilling fluids systems, completion fluids, completion fluids systems,
solids control, rig instrumentation, waste remediation and other related assets
and businesses (the "Drilling Fluids Business") into (a) a jointly owned limited
liability company formed under the laws of the State of Delaware ("USNewco");
(b) a jointly owned corporation formed under the laws of the British Virgin
Islands ("BVINewco"); (c) a jointly owned Besloten Vennootschap formed under the
laws of the Netherlands ("Dutchco"); and (d) M-I Canada, such that, upon
consummation of the transactions contemplated pursuant to the Original
Agreement, Smith and Schlumberger would own, through various subsidiaries, 60%
and 40% ownership interests, respectively, in each of those respective entities;
and

         WHEREAS, Schlumberger has decided to liquidate the assets that comprise
the United States portion of its Drilling Fluids Business (the "Schlumberger
U.S. Business"); and

         WHEREAS, in accordance with Section 8.3 of the Original Agreement, the
parties desire to amend and restate the Original Agreement to, among other
things, exclude from this Agreement the Schlumberger U.S. Business; and

         WHEREAS, all the parties agree that because the Drilling Fluids
Business of STC will not be transferred to USNewco as contemplated by the
Original Agreement, STC need not be a party to this Agreement going forward; and

         WHEREAS, all the parties agree that Schlumberger MI shall be a party to
this Agreement because it will hold Schlumberger's 40% interest in USNewco
pursuant to the terms and conditions hereof.

         NOW, THEREFORE, in consideration of the foregoing and the covenants and
agreements set forth below, the parties hereto agree as follows:

                                      -1-

<PAGE>   5


                                                        DEFINITIONS AND GENERAL

DEFINITIONS

The capitalized terms defined in this Section 1.1, whenever used in this
Agreement, shall have the following meanings for all purposes of this Agreement:

                  (1) "Accounting Date" means July 25, 1999.

                  (2) "Alternative Non-Monetary Consideration" has the meaning
         given such term in Section 4.21.

                  (3) "Appraisal Notice" has the meaning given such term in
         Section 4.21.

                  (4) "Appraiser" has the meaning given such term in Section
         4.21.

                  (5) "Assumed Liabilities" means, collectively, the M-I
         Assumed Liabilities and the Schlumberger Assumed Liabilities.

                  (6) "Bargaining Unit Employees" has the meaning given such
         term in Section 4.4(b).

                  (7) "BVINewco" means a corporation to be formed under the
         laws of the British Virgin Islands.

                  (8) "Canadian Employees" has the meaning given such term in
         Section 4.7(a).

                  (9) "Change of Control Event" has the meaning given such term
         in Section 4.20.

                  (10) "Charter Documents" means, with respect to any entity,
         (a) the articles or certificate of formation, incorporation or
         organization (or the equivalent organizational documents) of that
         entity, (b) the bylaws or limited liability company agreement or
         regulations (or the equivalent governing documents, including
         shareholders agreements) of that entity and (c) each document setting
         forth the designation, amount and relative rights, limitations and
         preferences of any class or series of equity ownership in that entity
         or any rights in respect of that entity's equity ownership interests.

                  (11) "Closing" means the closing of the transactions
         contemplated to occur on the Closing Date.

                  (12) "Closing Date" has the meaning given such term in
         Section 3.10(a).

                  (13) "Closing Statements" has the meaning given such term in
         Section 3.9.

                  (14) "Code" means the United States Internal Revenue Code of
         1986, as amended.

                                      -2-

<PAGE>   6


                  (15) "Collective Agreements" has the meaning given such term
         in Section 4.4(b).

                  (16) "CSI" has the meaning given such term in Section 4.7(a).

                  (17) "Damages" means and includes, as to any Person, any
         loss, cost, expense, liability, penalty or interest, or other damage,
         including reasonable counsel fees.

                  (18) "Disposing Party" has the meaning given such term in
         Section 4.21.

                  (19) "Disposition" has the meaning given such term in Section
         4.21.

                  (20) "Disposition Notice" has the meaning given such term in
         Section 4.21.

                  (21) "DMP" has the meaning given such term in Section 4.7.

                  (22) "Domestic Plans Extension Period" has the meaning given
         such term in Section 4.6.

                  (23) "Dresser" means Dresser Industries, Inc., which entity
         was subsequently merged into Halliburton.

                  (24) "Dutchco" means a Besloten Vennootschap to be formed
         under the laws of the Netherlands.

                  (25) "Effective Time" has the meaning given such term in
         Section 3.10(a).

                  (26) "Environmental Committee" has the meaning given such
         term in Section 4.16.

                  (27) "Environmental, Health and Safety Requirements" means any
         U.S. or non-U.S., national, federal, state or local statute, law, rule,
         regulation, ordinance, directive, code, or rule of common law in effect
         and any judicial or administrative interpretation thereof, including
         any judicial or administrative order, consent decree or judgment,
         relating to pollution, exposure to oil, pollutants, hazardous or toxic
         materials or wastes, or protection of the environment, including laws
         relating to exposures, emissions, discharges, releases or threatened
         releases of oil, pollutants, hazardous or toxic materials or wastes
         into ambient air, surface water, ground water or land, or otherwise
         relating to the manufacture, processing, distribution, use, treatment,
         storage, disposal, transport or handling of oil, pollutants, hazardous
         or toxic materials or wastes, or relating to the environment, health,
         safety or hazardous materials, including CERCLA, 42 U.S.C. Sections
         9601 et seq.; the Resource Conservation and Recovery Act, 42 U.S.C.
         Sections 6901 et seq.; the Federal Water Pollution Control Act, 33
         U.S.C. Sections 1251 et seq.; the Toxic Substances Control Act, 15
         U.S.C. Sections 2601 et seq.; the Clean Air Act, 42 U.S.C. Sections
         7401 et seq.; the Safe Drinking Water Act, 42 U.S.C. Sections 300f et
         seq.; the Hazardous Materials Transportation Act, 49 U.S.C. Sections
         5101 et seq.; the Atomic Energy Act, 42 U.S.C. Sections 2011 et seq.;
         the Federal Insecticide, Fungicide and Rodenticide Act, 7 U.S.C.
         Sections 136 et

                                      -3-

<PAGE>   7


         seq.; and the Occupational Safety and Health Act, 29 U.S.C. Sections
         651 et seq. ("OSHA"), in each case as have been or may be amended from
         time to time, and any other U.S. or non-U.S., national, federal, state
         or local laws, ordinances, rules, regulations and publications now or
         hereafter relating to the subject matter of this clause (27).

                  (28) "ERISA" means the Employee Retirement Income Security
         Act of 1974, as amended.

                  (29) "Exchange Act" means the United States Securities
         Exchange Act of 1934, as amended.

                  (30) "Executive Committee" has the meaning given such term in
         Section 2.7(b).

                  (31) "Exercise Notice" has the meaning given such term in
         Section 4.21.

                  (32) "Expatriates" has the meaning given such term in Section
         4.3.

                  (33) "Fair Market Value" has the meaning given such term in
         Section 4.21.

                  (34) "Foreign Employees" has the meaning given such term in
         Section 4.3.

                  (35) "Foreign Plans Extension Period" has the meaning given
         such term in Section 4.7.

                  (36) "Foreign Venture Entities" has the meaning given such
         term in Section 4.1.

                  (37) "Foreign Venture Entities' Employees" has the meaning
         given such term in Section 4.5.

                  (38) "Foreign Venture Entities' Foreign Plans" has the
         meaning given such term in Section 4.7.

                  (39) "Former M-I Domestic Employees" has the meaning given
         such term in Section 4.2.

                  (40) "Former M-I Foreign Employees" has the meaning given
         such term in Section 4.2.

                  (41) "Former Schlumberger Employees" has the meaning given
         such term in Section 4.2.

                  (42) "GAAP" means generally accepted accounting principles as
         in effect in the United States applied on a consistent basis.

                  (43) "Halliburton" means Halliburton Company.

                                      -4-

<PAGE>   8


                  (44) "ICs" has the meaning given such term in Section 4.3.

                  (45) "Indemnified Party" has the meaning given such term in
         Section 6.6.

                  (46) "Indemnifying Party" has the meaning given such term in
         Section 6.6.

                  (47) "Initiating Party" has the meaning given such term in
         Section 4.19.

                  (48) "Investment Canada Notification" means the post-Closing
         filing required by Section 12 of the Investment Canada Act, Chapter
         I-21.8 [R.S., 1985, c. 28 (1st Supp.)].

                  (49) "IRS" means the United States Internal Revenue Service.

                  (50) "Lien" means any mortgage, pledge, security interest,
         encumbrance, lien, claim or other charge.

                  (51) "Material Adverse Effect" means any effect or change
         that is or would adversely affect the business, operations, assets,
         condition (financial or otherwise) or results of operations of an
         entity by more than $1,000,000.

                  (52) "Mexican Tax Ruling" has the meaning given such term in
         Section 2.8.

                  (53) "M-I Acquired Assets" means the assets being contributed
         to USNewco, BVINewco and Dutchco pursuant to Section 2.1(a) and the
         assets of M-I Canada, collectively.

                  (54) "M-I Assumed Liabilities" has the meaning given such
         term in Section 2.1(b).

                  (55) "M-I Balance Sheet" has the meaning given such term in
         Section 2.1(b).

                  (56) "M-I Domestic Business" has the meaning given such term
         in Section 4.1.

                  (57) "M-I Drilling Fluids Business" means the business of M-I
         and of M-I Canada comprised solely of the M-I Acquired Assets and the
         M-I Assumed Liabilities.

                  (58) "M-I Foreign Business" has the meaning given such term
         in Section 4.1.

                  (59) "M-I Foreign Plans " has the meaning given such term in
         Section 4.7.

                  (60) "M-I Mexico" means M-I Drilling Fluids de Mexico, S.A.
         de C.V., which is currently a wholly owned subsidiary of M-I.

                  (61) "M-I Profit-Sharing Plan" has the meaning given such
         term in Section 4.6.

                  (62) "M-I Transferred Subsidiaries" has the meaning given
         such term in Section 6.2.

                                      -5-

<PAGE>   9


                  (63) "M-I/Venture Entity Environmental Liabilities" has the
         meaning given such term in Section 6.2(b).

                  (64) "M-I/Venture Entity Product Liability Claim" has the
         meaning given such term in Section 6.4(b).

                  (65) "Net Asset Value" means, as of any date, the net book
         value of assets as set forth in the applicable Exhibits or Closing
         Statements.

                  (66) "Non-Acquired Schlumberger Assets" means all assets of
         Schlumberger and its subsidiaries other than the Schlumberger Acquired
         Assets.

                  (67) "Non-Acquired Schlumberger Businesses" means all
         products and services of Schlumberger and its subsidiaries other than
         the Schlumberger Drilling Fluids Business.

                  (68) "Non-M-I Smith Business" means all products and services
         of Smith and its subsidiaries other than those of M-I, the Venture
         Entities and their respective subsidiaries.

                  (69) "Non-Monetary Consideration" has the meaning given such
         term in Section 4.21.

                  (70) "Non-Public Information" means information not in the
         public domain relating to costs, profits or profit margins; strategic
         plans; plans for development of new products, services or
         technologies; customer names; bids, pricing policies, prices, price
         schedules or terms; proposed transactions; technology plans or status
         of implementation; proposals; contracts; or marketing plans.

                  (71) "Non-U.S. Employees" has the meaning given such term in
         Section 4.5.

                  (72) "Other Party" has the meaning given such term in Section
         4.19.

                  (73) "Ownership Interest" has the meaning given such term in
         Section 4.19.

                  (74) "Percentage Interest" means a Person's direct or
         indirect ownership interest in each Venture Entity, which interest is,
         with respect to (i) Schlumberger (through subsidiaries of
         Schlumberger), 40%, and (ii) Smith (through subsidiaries of Smith),
         60%.

                  (75) "Person" means any corporation, limited liability
         company, individual, joint stock company, joint venture, partnership,
         unincorporated association, governmental regulatory entity, country,
         state or political subdivision thereof, trust, municipality or other
         entity.

                  (76) "Prior Domestic Welfare Plans" has the meaning given
         such term in Section 4.6.

                                      -6-

<PAGE>   10


                  (77) "Prior Foreign Welfare Plans" has the meaning given such
         term in Section 4.7.

                  (78) "Protocol" has the meaning given such term in Section
         4.11.

                  (79) "Recipient Party" has the meaning given such term in
         Section 4.21.

                  (80) "Response Notice" has the meaning given such term in
         Section 4.19.

                  (81) "Retained Records" has the meaning given such term in
         Section 4.14(b).

                  (82) "Retiree Medical" has the meaning given such term in
         Section 4.6.

                  (83) "Returns" has the meaning given such term in Section
         5.3(m)(i).

                  (84) "Schlumberger Acquired Assets" has the meaning given
         such term in Section 2.4.

                  (85) "Schlumberger Assumed Liabilities" has the meaning given
         such term in Section 2.4.

                  (86) "Schlumberger Drilling Fluids Business" means the
         business of Schlumberger and its subsidiaries comprised solely of the
         Schlumberger Acquired Assets and the Schlumberger Assumed Liabilities.

                  (87) "Schlumberger Environmental Liabilities" has the meaning
         given such term in Section 6.3(b).

                  (88) "Schlumberger Foreign Business" has the meaning given
         such term in Section 4.1.

                  (89) "Schlumberger Foreign Plans" has the meaning given such
         term in Section 4.7.

                  (90) "Schlumberger Product Liability Claim" has the meaning
         given such term in Section 6.4(a).

                  (91) "Schlumberger Transferred Subsidiaries" has the meaning
         given such term in Section 6.3.

                  (92) "Schlumberger Warranties" means the warranties currently
         used in the operations of the Schlumberger Drilling Fluids Business
         and as are attached hereto as Exhibit 4.8(b).

                  (93) "Second Closing" has the meaning given such term in
         Section 3.10(b).

                                      -7-

<PAGE>   11


                  (94) "Taxes" means all federal, state, local, non-U.S. and
         other taxes, charges, fees, levies, imposts, duties, licenses or other
         assessments, together with any interest, penalties, additions to tax
         or additional amounts imposed by any taxing authority.

                  (95) "Technical Committee" has the meaning given such term in
         Section 4.16.

                  (96) "Transfer Document" has the meaning given such term in
         Section 3.7.

                  (97) "Transfer Notice" has the meaning given such term in
         Section 4.19.

                  (98) "U.K." means the United Kingdom.

                  (99) "Unassumed Foreign Plans" has the meaning given such
         term in Section 4.3.

                  (100) "U.S. Employees" has the meaning given such term in
         Section 4.4.

                  (101) "USNewco" means a limited liability company to be
         formed under the laws of the State of Delaware.

                  (102) "USNewco Employees" has the meaning given such term in
         Section 4.4.

                  (103) "USNewco Profit-Sharing Plan" has the meaning given
         such term in Section 4.6.

                  (104) "USNewco Severance Plan" has the meaning given such
         term in Section 4.6.

                  (105) "Venture Entities" means, collectively, USNewco,
         BVINewco, Dutchco and M-I Canada.

                  (106) "Warranty and Warranty Service" means only repairs,
         replacements or adjustments to products, installations and services
         (including the labor and materials relating thereto): (i) that are
         related to claims that arise under the Schlumberger Warranties and
         that are asserted under the applicable warranty period; or (ii) that
         arise in connection with "recalls" initiated prior to or after the
         Effective Time.

                                      -8-

<PAGE>   12


CONSTRUCTION. Words used in this Agreement, regardless of the number or gender
specifically used, shall be deemed and construed to include any other number,
singular or plural, and any other gender, masculine, feminine or neuter, as the
context shall require.

REFERENCES. As used in this Agreement, unless expressly stated otherwise,
references to (a) "include" or "including" mean "including, without limitation,"
and (b) a "party" mean Smith, SIAC, MIPC, M-I, Smith Canada, M-I Canada,
Schlumberger or Schlumberger MI, and to the "parties" mean all of them. Unless
otherwise specified, all references in this Agreement to Articles, Sections and
Exhibits are deemed references to the corresponding Articles, Sections and
Exhibits in, to and of this Agreement.

HEADINGS. The headings contained in this Agreement are for reference purposes
only and shall not affect in any way the meaning or interpretation of this
Agreement.

                                         REORGANIZATION OF M-I AND CONTRIBUTION

M-I PRE-CLOSING REORGANIZATION.

                  (a) Subject to the terms and conditions of this Agreement,
         prior to the Effective Time, SIAC and MIPC will form, acquire or cause
         to be formed or acquired USNewco, BVINewco and Dutchco, and shall
         contribute or cause to be contributed (1) to USNewco, all of the
         assets and business of M-I that are associated with the conduct by M-I
         of business in the United States (which shall comprise all of the
         assets of M-I other than those reflected on Exhibit 2.1-1 and 2.1-2),
         along with those liabilities that are included in the M-I Assumed
         Liabilities and that are associated with such business, (2) to
         BVINewco, all of the ownership interests indicated in Exhibit 2.1-1,
         and (3) to Dutchco, all of the ownership interests indicated in
         Exhibit 2.1-2. In order to effect such contributions, the appropriate
         entities shall execute and deliver one or more General Conveyance of
         Assets and Assumption of Liabilities Agreements in substantially the
         form set forth in Exhibit 3.3.

                  (b) Attached hereto as Exhibit 2.1-3 is the consolidated
         balance sheet of the M-I Drilling Fluids Business as of December 31,
         1998 (the "M-I Balance Sheet"). The liabilities reflected on the M-I
         Balance Sheet, as supplemented by the Closing Statement related to
         M-I, and the liabilities related to the performance of the contracts
         and agreements of the Drilling Fluids Business of M-I, including those
         set forth on Exhibit 2.1-4, as supplemented by the Closing Statement
         related to M-I, and only those liabilities,

                                      -9-

<PAGE>   13


shall become liabilities of the Venture Entities immediately prior to the
Effective Time (the "M-I Assumed Liabilities").

                  (c) Attached hereto as Exhibit 2.1-4 is a list of all the
         intellectual property and of the other material non-balance sheet
         assets of the M-I Drilling Fluids Business such as material contracts,
         licenses, leases and other agreements.

                                     -10-

<PAGE>   14


VENTURE ENTITIES' CHARTER DOCUMENTS AND ORGANIZATION. The Charter Documents of
the Venture Entities as of the Effective Time shall be in substantially the
forms set forth in Exhibit 2.2-1 (USNewco), Exhibit 2.2-2 (BVINewco), Exhibit
2.2-3 (Dutchco) and Exhibit 2.2-4 (M-I Canada). The limited liability company
agreement of USNewco shall require USNewco, (a) upon the request of any
transferee of a membership interest in USNewco, to elect pursuant to Section 754
of the Code to adjust the basis of property as provided by Sections 734 and 743
of the Code and (b) to apply the principles of Treasury Regulations Section
1.704-3(d) in allocating gain, loss, amortization, depreciation and cost
recovery deductions attributable to property contributed to USNewco.

OWNERSHIP OF THE VENTURE ENTITIES. As of the Effective Time, the ownership of
each Venture Entity shall be as set forth in Exhibit 2.3.

SCHLUMBERGER TRANSFER OF ASSETS AND LIABILITIES. Subject to the terms and
conditions of this Agreement, as of the Effective Time, Schlumberger or
subsidiaries of Schlumberger shall transfer or cause to be transferred to the
Foreign Venture Entities, in exchange for an ownership interest in each Foreign
Venture Entity, the assets of the Schlumberger Drilling Fluids Business set
forth on Exhibit 2.4-1, as supplemented by the Closing Statement related to
Schlumberger (the "Schlumberger Acquired Assets"), and the associated
liabilities of the Schlumberger Drilling Fluids Business set forth on Exhibit
2.4-2, as supplemented by the Closing Statement related to Schlumberger. The
liabilities reflected on Exhibit 2.4-2, as supplemented by the Closing Statement
related to Schlumberger, and the liabilities related to the performance of the
contracts and agreements of the non-U.S. Drilling Fluids Business of
Schlumberger, including those set forth on Exhibit 2.4-1, as supplemented by the
Closing Statement related to Schlumberger, and only those liabilities (the
"Schlumberger Assumed Liabilities"), shall become liabilities of the Foreign
Venture Entities as of the Effective Time. At the election of Schlumberger, the
contribution of part or all of such assets may be effected in the form of a sale
of assets coupled with a reimbursement by Schlumberger or subsidiaries of
Schlumberger to the appropriate Foreign Venture Entity.

                                     -11-

<PAGE>   15


SCHLUMBERGER PURCHASE OF INTEREST IN EACH VENTURE ENTITY. Subject to the terms
and conditions of this Agreement, as of the Effective Time, Schlumberger or
subsidiaries of Schlumberger shall transfer or cause to be transferred to
entities designated by Smith, in exchange for ownership interests in the Venture
Entities, cash in a total amount of $280 million, which shall be allocated among
the recipient entities designated by Smith in the manner designated by Smith. In
making such designation, Smith shall rely upon an evaluation performed by an
independent appraiser to be selected by agreement of the parties. In
consideration of the contributions of assets described in Section 2.4 and the
cash payments described in this Section 2.5, as adjusted for any cash payments
described in Section 3.8 and Section 3.10, Schlumberger or subsidiaries of
Schlumberger will acquire a 40% ownership interest in each Venture Entity.

VENTURE ENTITIES' NAMES. The names of the Venture Entities shall be as set forth
in the appropriate Charter Documents. Where necessary hereunder to reflect and
conform to the fact that certain transfers of assets and liabilities of the
parties will be made to one or more subsidiaries of a Venture Entity, rather
than to a Venture Entity directly, the terms "USNewco," "BVINewco," "Dutchco"
and "M-I Canada" shall be deemed to mean and include any such subsidiary or
subsidiaries of that Venture Entity.

MANAGEMENT OF VENTURE ENTITIES.

                  (d) The officers, directors, management committees or other
         appropriate governing bodies of the Venture Entities as of the
         Effective Time shall be as mutually agreed by Smith and Schlumberger
         prior to the Effective Time.

                  (e) The members of the committee (the "Executive Committee")
         that shall set the overall policies, procedures and directions
         relating to all of the Venture Entities shall be as mutually agreed by
         Smith and Schlumberger prior to the Effective Time. The Executive
         Committee shall meet at least once per calendar year in mutually
         agreed upon locations.

                  (f) The provisions of Section 4.15 shall apply to each person
         and group described in this Section 2.7.

                                     -12-

<PAGE>   16


M-I MEXICO. The transactions called for by this Agreement have been formulated
on the assumption that, prior to the Effective Time, Smith shall have received a
favorable ruling from the appropriate Mexican tax authorities as to the transfer
of its ownership interest in M-I Mexico to Dutchco (the "Mexican Tax Ruling").
If the Mexican Tax Ruling shall not have been received prior to the Effective
Time, the parties will take such other actions as may be mutually agreed to
combine the M-I Drilling Fluids Business in Mexico with the Schlumberger
Drilling Fluids Business in Mexico in a manner that most closely achieves the
objectives contemplated by this Agreement.

                                                                    THE CLOSING

EXECUTION OF THE AMENDED VENTURE ENTITY CHARTER DOCUMENTS. At the Closing and
upon the terms and subject to the conditions of this Agreement, Schlumberger and
Smith shall execute and deliver, or cause to be executed and delivered, any
Charter Documents of the respective Venture Entities and any amendments thereto
as necessary to conform to the provisions of Section 2.2, and Smith shall file
or cause to be filed those documents, as required, with the necessary
governmental authorities as soon as practicable and shall cause the Venture
Entities to deliver to the appropriate entities identified in Section 2.3
certificates or other evidence reflecting these entities' ownership interest in
each Venture Entity.

PAYMENT OF THE CASH PURCHASE PRICE FOR THE VENTURE ENTITY INTERESTS. At the
Closing and upon the terms and subject to the conditions of this Agreement,
Schlumberger or its subsidiaries shall make or cause to be made the cash
payments described in Section 2.5 in immediately available funds by wire
transfer to accounts designated in writing at least three business days prior to
the Closing Date by the recipient entities.

EXECUTION OF THE CONVEYANCE AND ASSUMPTION AGREEMENTS. At the Closing, the
appropriate entities shall execute and deliver, effective as of the Effective
Time, one or more General Conveyance of Assets and Assumption of Liabilities
Agreements in substantially the form set forth in Exhibit 3.3 to effect the
conveyances described in Section 2.4.

                                     -13-

<PAGE>   17


INTELLECTUAL PROPERTY LICENSES.

                  (g) Each of the Venture Entities hereby grants to
         Schlumberger or any subsidiary designated by Schlumberger, upon
         transfer of the patents, patent applications and inventions included
         in the Schlumberger Acquired Assets, a nontransferable, irrevocable,
         royalty-free, worldwide license (with the right to sublicense only to
         its subsidiaries and affiliates) to make, have made, use, sell and
         offer for sale any invention covered by the claims of any patent or
         patent application, including any reissue, division or continuation
         thereof, subject to the provisions of Section 9.6.

                  (h) In the event that any Venture Entity fails to prepare,
         file or prosecute a patent application relating to an invention
         transferred to that Venture Entity by Schlumberger or any of its
         subsidiaries or in the event that any Venture Entity decides not to
         pursue or decides to discontinue preparation, filing or prosecution of
         any such patent application or any continuations, divisions, reissues,
         reexamination or counterpart thereof, or in the event that any Venture
         Entity fails to pay any tax or other fee with respect to a patent or
         patent application, that Venture Entity shall give timely and
         sufficient notice thereof to Schlumberger, and Schlumberger or a
         subsidiary thereof shall have the right to obtain and protect the
         entire right, title and interest in and to such application or patent,
         including the right to prepare, file, prosecute and maintain any such
         application, continuation, division, reissue, reexamination or
         counterpart thereof at the election and expense of Schlumberger or its
         subsidiary, all without further compensation to that Venture Entity. A
         Venture Entity shall, upon the request of Schlumberger or a subsidiary
         thereof, promptly execute any and all assignments or other papers or
         instruments and shall provide such assistance and do all acts that
         Schlumberger or its subsidiary deems necessary or useful to accomplish
         the above at the expense of Schlumberger or its subsidiary. In
         consideration of such assignment, Schlumberger or its subsidiary
         shall, upon request from a Venture Entity, grant to that Venture
         Entity, at that Venture Entity's cost, a royalty-free, irrevocable,
         nontransferable, nonexclusive license without the right to sublicense
         under such patent or patent applications and in consideration for such
         license, that Venture Entity shall reimburse Schlumberger for the
         costs incurred by Schlumberger and its subsidiaries in connection with
         obtaining and protecting their right, title and interest in such
         discontinued patent or patent applications.

                                     -14-

<PAGE>   18


FAILURE OF CONSENT. To the extent that the assignment or transfer of any shares
of stock, contracts, licenses, leases, commitments, sales orders, purchase
orders or other assets or rights to be transferred or assigned to a Venture
Entity or a subsidiary thereof, as provided herein, shall require the consent of
the other party or parties thereto, or the consent of any other Person, this
Agreement shall not constitute an agreement to transfer or assign the same if an
attempted assignment or transfer would constitute a breach thereof or violation
of law. Subject to any other provision or condition herein dealing with specific
consents, if such consent is not obtained, the parties will cooperate with the
appropriate Venture Entity or subsidiary thereof to secure a reasonable mutually
agreeable arrangement designed to provide that Venture Entity (or such
subsidiary) with the benefits of any such shares of stock, contracts, licenses,
leases, commitments, sales orders, purchase orders or other assets or rights,
including enforcement for the benefit of that Venture Entity (or such
subsidiary) of any and all rights of the party against the other party or
parties thereto arising out of the breach or cancellation by such other party or
parties or otherwise. If any such consent or other reasonable arrangement is not
obtained or secured on or before the last day of the 24th month following the
Effective Time, the party shall compensate the appropriate Venture Entity in
cash for the amount, if any, attributable to the assets, properties or rights
included in the Exhibits that cannot be transferred to that Venture Entity as
contemplated by this Agreement. The provisions of this Section 3.5 apply to the
transfers contemplated by Section 2.1 and Section 2.4.

                                     -15-

<PAGE>   19


CLOSING ADJUSTMENT. Power and utility charges relating to facilities being
transferred to the Foreign Venture Entities by Schlumberger or any of its
subsidiaries hereunder, real and personal property taxes relating to property
being transferred to the Foreign Venture Entities by Schlumberger or any of its
subsidiaries hereunder and rents and other payments pertaining to leases and
contracts being assigned hereunder to the Foreign Venture Entities by
Schlumberger or any of its subsidiaries (exclusive of advance and progress
payments under purchase and similar contracts and commitments) shall be prorated
between the Foreign Venture Entities and Schlumberger as of the Accounting Date.
The prorations and adjustments made hereunder shall be made and paid in cash as
promptly as practicable following the Closing, and in any event within 45 days
thereafter, at such time and place as the Foreign Venture Entities and
Schlumberger shall mutually agree upon. The prorations and adjustments made
hereunder with respect to real and personal property taxes relating to property
being transferred to the Foreign Venture Entities by Schlumberger or any of its
subsidiaries hereunder shall be based upon the accruals for such taxes. As soon
as practicable after December 31, 1999, the parties hereto shall, if necessary,
make an additional adjustment with respect to such taxes in the manner provided
for in this Section 3.6 to the extent that the actual amount of such taxes does
not equal the accruals therefor.


DELIVERY. At or in connection with the Closing, the parties agree that
Schlumberger and the Foreign Venture Entities shall execute and deliver or cause
their affiliates to execute and deliver, as appropriate, to each other and/or
file or record all such assignments, deeds, bills of sale, conveyances,
endorsements, and other documents (any such document, a "Transfer Document") as
are required to effect the transfer and delivery to the Foreign Venture Entities
of the Schlumberger Acquired Assets and to effect the assumption of the
Schlumberger Assumed Liabilities by the Foreign Venture Entities.

                                     -16-

<PAGE>   20


ADJUSTING PAYMENTS. If the Net Asset Value of the Schlumberger Acquired Assets
less the Schlumberger Assumed Liabilities does not equal 25% of the Net Asset
Value of the M-I Acquired Assets less the M-I Assumed Liabilities, Schlumberger
or its subsidiaries, or Smith or its subsidiaries, as the case may be, shall
contribute additional cash in the amount of the deficiency to the appropriate
Venture Entity. Such contribution shall be made at the Closing on the basis of
Exhibit 2.4-1 and Exhibit 2.4-2 in the case of Schlumberger and Exhibit 2.1-3 in
the case of Smith, and shall be adjusted after the Closing in the manner
prescribed by Section 3.10(b).


CLOSING STATEMENTS. As promptly as practicable following the Closing Date, and
in any event within 60 days after the Accounting Date, Schlumberger and Smith
shall prepare, or shall cause the Venture Entities to prepare, and deliver to
the other parties a special purpose statement as of the Accounting Date (the
"Closing Statements"), which reflects the Schlumberger Acquired Assets, the
Schlumberger Assumed Liabilities, the M-I Acquired Assets, and the M-I Assumed
Liabilities as of the Accounting Date and accounts for any change in (a) the
assets or liabilities included therein or (b) the Net Asset Value of the assets
or liabilities included therein between the cutoff dates used in preparing
Exhibit 2.4-1, Exhibit 2.4-2, Exhibit 2.1-3 and Exhibit 2.1-4, as applicable,
and the Accounting Date that was incurred in the ordinary course of business.
The Closing Statements shall be prepared utilizing the same format and valuation
principles as were utilized in determining the Net Asset Value amounts reflected
in those Exhibits, except that foreign currencies shall be translated into
United States dollars in accordance with agreed exchange rates in effect as of
the Accounting Date. Smith and Schlumberger shall each have the right to review
and audit the Closing Statements of the other parties and the underlying assets
and liabilities and to propose adjustments to those Closing Statements. The
parties agree to work together in good faith to finalize the Closing Statements
in time for the Second Closing.


CLOSING DATE, EFFECTIVE TIME AND SECOND CLOSING.

                  (i) Closing Date and Effective Time. Upon the terms and
         subject to the conditions of this Agreement, the closing of the
         transactions contemplated by this Agreement shall take place at the
         offices of Baker & Botts, L.L.P., 910 Louisiana, Suite 3000, Houston,
         Texas, at 1:00 p.m. on July 14, 1999, or at such other time and place
         as the parties may mutually agree (the "Closing Date"); provided,
         however, that, notwithstanding the contributions being made on the
         Closing Date, the contributions of

                                     -17-

<PAGE>   21


         the Schlumberger Acquired Assets and the assumption of the
         Schlumberger Assumed Liabilities shall be deemed to have taken place
         and to be effective at 12:01 a.m. on the Closing Date (the "Effective
         Time").

                  (j) Second Closing. A second closing shall be held at the
         offices of Baker & Botts, L.L.P., 910 Louisiana, Suite 3000, Houston,
         Texas, at 9:00 a.m. on September 25, 1999, or at such other time and
         place as the parties may mutually agree (the "Second Closing"). If, as
         of the Accounting Date, the Net Asset Value of the Schlumberger
         Acquired Assets less the Schlumberger Assumed Liabilities does not
         equal 25% of the Net Asset Value of the M-I Acquired Assets less the
         M-I Assumed Liabilities, the parties shall recalculate the adjusting
         payments made pursuant to Section 3.8 and if Smith and its
         subsidiaries or Schlumberger and its subsidiaries made an adjusting
         payment pursuant to Section 3.8 that was too large, the appropriate
         Venture Entity shall refund the overage to the payor at the Second
         Closing. If after recalculation and refunding, if any, pursuant to the
         previous sentence, Smith or Schlumberger has a shortfall, Smith and
         its subsidiaries or Schlumberger and its subsidiaries shall contribute
         sufficient cash to the appropriate Venture Entity to cure the
         shortfall at the Second Closing.

                                                              CERTAIN COVENANTS

EMPLOYEES IN GENERAL.

                  (k) USNewco Employees. Employees of the portion of the M-I
         Drilling Fluids Business contributed on behalf of Smith to USNewco
         ("M-I Domestic Business") who are actively employed immediately prior
         to the Effective Time shall become employees of USNewco effective as
         of the Effective Time. Effective on or after the Effective Time,
         USNewco shall have the right to terminate any of its employees, with
         or without cause, except as otherwise may be agreed by M-I, Smith and
         Schlumberger, and subject to any applicable legal restrictions.

                  (l) Foreign Venture Entities' Employees. Employees of M-I
         Canada and the portions of the M-I Drilling Fluids Business and the
         portions of the Schlumberger Drilling Fluids Business contributed on
         behalf of Smith and Schlumberger, respectively, to BVINewco, Dutchco
         and, in the case of Schlumberger or subsidiaries of Schlumberger, M-I
         Canada (collectively, the "Foreign Venture Entities") ("M-I Foreign
         Business" and "Schlumberger Foreign Business," respectively), who are
         actively employed immediately prior to the Effective Time shall become
         employees of the Foreign Venture Entities, as appropriate, effective
         as of the Effective Time. Effective on or after the Effective Time,
         the Foreign Venture Entities shall have the right to terminate any of
         their employees, with or without cause, except as otherwise may be
         agreed by Smith and Schlumberger and subject to any applicable legal
         restrictions.


PAYROLL.

                  (m) Payroll Processing Services by Schlumberger. For a period
         not to exceed 90 days after the Effective Time or such longer period
         as agreed to by Schlumberger and

                                     -18-

<PAGE>   22


         the Foreign Venture Entities, Schlumberger, acting as agent for, and
         in the name of, the Foreign Venture Entities, shall provide payroll
         processing services with respect to all employees of the Foreign
         Venture Entities who were active employees of the Schlumberger
         Drilling Fluids Business on the day before the Effective Time (the
         "Former Schlumberger Employees"). As agent for the Foreign Venture
         Entities, Schlumberger shall withhold any amounts required to be
         withheld from the wages of the Former Schlumberger Employees, shall
         properly and timely deposit taxes withheld on behalf of the Foreign
         Venture Entities, shall properly and timely pay any employment taxes
         due by the Foreign Venture Entities with respect to the Former
         Schlumberger Employees, and as soon as administratively practicable
         following each payroll date, shall pay to the appropriate Foreign
         Venture Entities, or to their designees which have been identified to
         Schlumberger in writing by the Foreign Venture Entities, any amounts
         withheld from the wages of the Former Schlumberger Employees
         representing contributions for employee benefit plans. Schlumberger,
         as agent, shall furnish the Foreign Venture Entities with all
         necessary information regarding wages paid to the Former Schlumberger
         Employees, and the amounts withheld from such wages, by Schlumberger,
         as agent, on or after the Effective Time.

                  (n) Payroll Processing Services by Smith. For a period not to
         exceed 90 days after the Effective Time or such longer period as
         agreed to by Smith and the appropriate Foreign Venture Entities,
         Smith, acting as agent for, and in the name of, the Foreign Venture
         Entities, excluding M-I Canada, shall provide payroll processing
         services with respect to all employees of the Foreign Venture Entities
         who were active employees of the M-I Foreign Business on the day
         before the Effective Time (the "Former M-I Foreign Employees"),
         excluding, however, the Former M-I Foreign Employees of M-I Canada. As
         agent for the Foreign Venture Entities, Smith shall withhold any
         amounts required to be withheld from the wages of the Former M-I
         Foreign Employees, shall properly and timely deposit taxes withheld on
         behalf of the Foreign Venture Entities, shall properly and timely pay
         any employment taxes due by the Foreign Venture Entities with respect
         to the Former M-I Foreign Employees, and as soon as administratively
         practicable following each payroll date, shall pay to the appropriate
         Foreign Venture Entities, or to their designees which have been
         identified to Smith in writing by the Foreign Venture Entities, any
         amounts withheld from the wages of the Former M-I Foreign Employees
         representing contributions for employee benefit plans. Smith, as
         agent, shall furnish the Foreign Venture Entities with all necessary
         information regarding wages paid to the Former M-I Foreign Employees,
         and the amounts withheld from such wages, by Smith, as agent, on or
         after the Effective Time.

                  (o) Former M-I Domestic and Foreign Employees Payroll
         Processing by USNewco and M-I Canada. For payroll periods commencing
         on and after the Effective Time, USNewco shall be directly responsible
         for the payroll for all employees of USNewco who were active employees
         of the M-I Domestic Business on the day before the Effective Time (the
         "Former M-I Domestic Employees") and M-I Canada shall be directly
         responsible for the payroll for all Former M-I Foreign Employees who
         were employees of M-I Canada on the day before the Effective Time.

                                     -19-

<PAGE>   23


                  (p) Payroll Processing Services Costs of Schlumberger and
         Smith. Until notified otherwise in writing by the appropriate Foreign
         Venture Entities, Schlumberger and Smith, as payroll agents, shall be
         entitled to assume that there has been no change in any employee's
         salary, wages, withholding status, retirement plan, profit-sharing
         plan and welfare benefit elections or any other factor affecting
         payroll calculations. Except as specifically provided to the contrary
         herein, the Foreign Venture Entities shall bear the costs of all
         salaries, wages, employment taxes, or other amounts due with respect
         to services performed by the employees of the Foreign Venture Entities
         at and after the Effective Time, and shall promptly on demand
         reimburse Schlumberger and Smith for all amounts expended, and all
         expenses incurred, by Schlumberger and Smith in providing the payroll
         processing services described above, and shall indemnify Schlumberger
         and Smith for any claim, loss, damage or penalty suffered by
         Schlumberger and Smith in connection with providing properly such
         services in accordance with the terms of this Agreement or the written
         instructions of a Foreign Venture Entity with respect to its
         employees.

                  (q) Assumption of Payroll Responsibility by Foreign Venture
         Entities. For payroll periods commencing on or after the 91st day
         after the Effective Time or such later time as agreed to by
         Schlumberger and the appropriate Foreign Venture Entities or Smith and
         the appropriate Foreign Venture Entities, or such earlier time as a
         Foreign Venture Entity desires, the appropriate Foreign Venture
         Entities shall assume direct responsibility for the payroll of the
         Former Schlumberger Employees and Former M-I Foreign Employees and
         Schlumberger and Smith agree to take such actions and furnish such
         information as may be necessary to enable the Foreign Venture Entities
         to assume such responsibilities.

EMPLOYEES IN FOREIGN OPERATIONS IN GENERAL.

                  (r) Expatriates. Employees of the M-I Foreign Business and
         the Schlumberger Foreign Business who are actively working and
         residing in a country other than their country of permanent residence
         or country of original employment as of the Effective Time shall be
         referred to as "Expatriates" hereinafter. With respect to Expatriates
         who are terminated or receive written notification of termination
         within the first 90 days following the Effective Time or who become
         entitled to accrued benefits under local law as a result of the
         transactions contemplated by this Agreement, the terminating Foreign
         Venture Entities shall be responsible for all costs of repatriation
         and severance pay, if applicable, provided to such terminated
         Expatriates determined under the terms and conditions of the severance
         policy of the applicable party previously employing such Expatriates
         in effect or authorized as of the day prior to the Effective Time, and
         the terminating Foreign Venture Entities shall be reimbursed by the
         applicable previously employing party of such terminated employees for
         such severance amounts paid, and any other reasonable costs, expenses
         or liabilities incurred, that result from such terminations. Subject
         to any reimbursement under Section 4.7(a), the terminating

                                     -20-

<PAGE>   24


         Foreign Venture Entity shall be fully responsible for, and shall
         indemnify Schlumberger, Schlumberger MI, Smith, SIAC, MIPC, M-I and
         Smith Canada against, any costs or expenses for terminations occurring
         on or after the 91st day following the Effective Time except with
         respect to any portion of such costs or expenses that are attributable
         to the actions or inactions of Schlumberger, Schlumberger MI, Smith,
         SIAC, MIPC, M-I or Smith Canada taken or failed to be taken prior to
         the Effective Time.

                  (s) International Commuters. Employees of the Schlumberger
         Foreign Business who are permanent residents of a country and, as of
         the Effective Time, are actively working on rotation in a different
         country, and are not on the payroll of their country of residence
         shall be referred to as "ICs" hereinafter. With respect to ICs who are
         terminated or receive written notification of termination within the
         first 90 days following the Effective Time or who become entitled to
         accrued benefits under local law as a result of the transactions
         contemplated by this Agreement, the terminating Foreign Venture
         Entities shall be responsible for all costs of repatriation and
         severance pay, if applicable, provided to such terminated ICs
         determined under terms and conditions of the applicable severance
         policy of Schlumberger in effect or authorized as of the day prior to
         the Effective Time, and the terminating Foreign Venture Entities shall
         be reimbursed by Schlumberger for such severance amounts paid, and any
         other reasonable costs, expenses or liabilities incurred, that result
         from such terminations. Subject to any reimbursement under Section
         4.7(a), the terminating Foreign Venture Entity shall be fully
         responsible for, and shall indemnify Schlumberger, Schlumberger MI,
         Smith, SIAC, MIPC, M-I and Smith Canada against, any costs or expenses
         for terminations occurring on or after the 91st day following the
         Effective Time except with respect to any portion of such costs or
         expenses that are attributable to the actions or inactions of
         Schlumberger, Schlumberger MI, Smith, SIAC, MIPC, M-I or Smith Canada
         taken or failed to be taken prior to the Effective Time.

                  (t) Foreign Employees. Employees of the M-I Foreign Business
         and the Schlumberger Foreign Business as of the Effective Time and who
         are actively employed in a non-U.S. country which is either the
         country of their permanent residence or the country of their original
         employment shall be referred to as "Foreign Employees" hereinafter.
         With respect to Foreign Employees who are terminated or receive
         written notification of termination within the first 90 days following
         the Effective Time or who become entitled to accrued benefits under
         local law as a result of the transactions contemplated by this
         Agreement, the terminating Foreign Venture Entities shall be
         responsible for all costs of severance pay, if applicable, provided to
         such terminated Foreign Employees determined under the terms and
         conditions of the severance policy of the applicable party previously
         employing such Foreign Employees in effect as of the day prior to the
         Effective Time, and the terminating Foreign Venture Entities shall be
         reimbursed by the applicable previously employing party of such
         terminated employees for such severance amounts paid, and any other
         reasonable costs, expenses or liabilities incurred, that result from
         such terminations. Subject to any reimbursement provided under Section
         4.7(a), the terminating Foreign Venture Entity shall be fully
         responsible for, and shall indemnify Schlumberger, Schlumberger MI,
         Smith, SIAC, MIPC, M-I and

                                     -21-

<PAGE>   25


         Smith Canada against, any costs or expenses for terminations occurring
         on or after the 91st day following the Effective Time except with
         respect to any portion of such costs or expenses that are attributable
         to the actions or inactions of Schlumberger, Schlumberger MI, Smith,
         SIAC, MIPC, M-I and Smith Canada taken or failed to be taken prior to
         the Effective Time.

                  (u) Foreign Pension Plans. Expatriates, ICs and Foreign
         Employees who are employees of the Foreign Venture Entities as of the
         Effective Time shall participate in the appropriate Foreign Venture
         Entities pension and profit sharing plans as provided in Section 4.7.
         Subject to any restrictions under applicable law, such plans shall
         provide that the service of Expatriates, ICs and Foreign Employees
         with the previously employing party or its subsidiary or affiliate
         shall be credited for vesting and eligibility purposes. As provided in
         Section 4.7, the parties agree that the M-I non-U.S. pension and
         profit-sharing plans in effect as of the day prior to the Effective
         Time, and the accrued pension and profit-sharing benefits of the
         Former M-I Foreign Employees under such plans, shall be assumed by the
         appropriate Foreign Venture Entities. The parties further agree that
         accrued pension and profit sharing benefits of employees of the
         Schlumberger Drilling Fluids Business who are participants in non-U.S.
         pension and profit-sharing plans of Schlumberger as of the Effective
         Time are not to be assumed by, or transferred to, any of the Foreign
         Venture Entities ("Unassumed Foreign Plans") and that the assets
         applicable to such accrued pension and profit sharing benefits as of
         such date will be retained in the applicable Unassumed Foreign Plan
         for the benefit of such employees; provided, however, that, subject to
         any restrictions under applicable law, each such employee shall be
         credited with service for eligibility and vesting purposes under the
         appropriate retirement and profit-sharing plans maintained by the
         Foreign Venture Entities equal to such employee's eligibility and
         vesting service recognized for purposes of the Unassumed Foreign Plans
         as of the Effective Time under the applicable Unassumed Foreign Plan.
         If after the Effective Time Schlumberger updates the benefits under an
         Unassumed Foreign Plan, then the Former Schlumberger Employee's
         benefit under such plan will be increased by Schlumberger in the same
         manner as a similarly-situated, active employee participating in such
         plan, provided such employee is employed with a Foreign Venture Entity
         or an affiliate as of the effective date of the change. Further,
         benefits payable, if any, under the applicable Unassumed Foreign Plan
         shall be determined in accordance with the provisions of such plan as
         in effect on the Effective Time, except that the participants of such
         plans shall be credited under the applicable Unassumed Foreign Plan
         with their period of employment with a Foreign Venture Entity for
         purposes of vesting and for determining the date such employee may
         first commence payment of benefits under such Unassumed Foreign Plan.
         The transfer of a Former Schlumberger Employee from a Foreign Venture
         Entity to Smith or any of Smith's divisions, subsidiaries or
         affiliates shall be deemed to be a termination of employment for
         purposes of the Unassumed Foreign Plans. The Foreign Venture Entities
         agree to notify Schlumberger of the severance or of such transfer of
         employment of any Former Schlumberger Employee. In cases where local
         laws, statutes or regulations will not permit the actions described in
         this Section 4.3(c), the parties will agree upon the basis of
         transferring the applicable profit-sharing and/or pension benefit
         obligations to the appropriate Foreign Venture

                                     -22-

<PAGE>   26


         Entity; provided, however, that the Foreign Venture Entities will not
         be responsible for any costs or expenses of such transfer, or for any
         benefit liabilities in excess of the amount transferred to it, or for
         any liabilities related to such plans attributable to pre-transfer
         matters. In such case, each party represents and warrants, with
         respect to the plans and any related trusts sponsored or contributed
         to by it from which profit-sharing or pension obligations are
         transferred in accordance with this Section 4.3(c), that each such
         plan and trust meet in all substantial respects the applicable
         requirements of local laws, statutes or regulations.


PROVISIONS REGARDING USNEWCO EMPLOYEES.

                  (v) Non-Union Employees. USNewco shall accept the transfer of
         employment as of the Effective Time of all salaried and hourly
         employees of M-I, and its subsidiaries and affiliates, employed in the
         United States whose employment is not covered by a collective
         bargaining agreement and who are employed by the M-I Domestic Business
         immediately prior to the Effective Time (collectively, "U.S.
         Employees"). U.S. Employees accepting such employment shall be
         referred to as "USNewco Employees" hereinafter. With respect to any
         U.S. Employee on approved leave of absence as of the Effective Time,
         USNewco's only obligation shall be to offer employment to such U.S.
         Employee at the end of such leave of absence if, and only if, USNewco
         has an available employment position for such employee at the time
         such leave terminates or as otherwise provided by applicable law.
         Unless otherwise expressly provided herein, or as provided in the
         USNewco Charter Documents or as the parties otherwise may agree, the
         terms and conditions of employment of USNewco Employees shall be
         determined by USNewco. USNewco Employees shall receive credit under
         the USNewco vacation policy for their accrued and unused vacation days
         that they had earned during 1999 under the vacation policy of M-I as
         of the Effective Time. Any such vacation days not used by December 31,
         1999 shall be forfeited as of January 1, 2000. M-I agrees that, except
         with the prior written consent of Schlumberger, prior to the Effective
         Time M-I will use its best efforts to keep available the services of
         the present officers and key employees of the M-I Domestic Business.

                  (w) Bargaining Unit Employees. As of the Effective Time, M-I
         will transfer to USNewco, as successor employer, the U.S. collective
         bargaining agreements identified in Exhibit 4.4(b) ("Collective
         Agreements"). "Bargaining Unit Employees" shall mean those employees
         whose terms and conditions of employment are covered by a Collective
         Agreement and who are actively employed in the United States as of the
         Effective Time or whose seniority under the applicable Collective
         Agreement has not terminated as of such date.

                  (x) Certain Obligations of the Parties. Smith shall be solely
         responsible for payment of commissions, bonuses, incentive or deferred
         compensation for the employees of the M-I Domestic Business
         attributable to service rendered prior to the Effective Time. Smith
         shall be solely responsible for welfare benefits, pension benefits and
         any other benefits under plans, programs, arrangements and/or
         personnel policies for the U.S.

                                     -23-

<PAGE>   27


         Employees (and their eligible dependents and beneficiaries) of the M-I
         Domestic Business who do not become USNewco Employees or Bargaining
         Unit Employees of USNewco, and for such benefits accrued, if any, by
         USNewco Employees prior to the Effective Time. Smith shall remain
         responsible for providing the following benefits to its U.S. Employees
         and Bargaining Unit Employees who become USNewco Employees or USNewco
         Bargaining Unit Employees:

                       (i) weekly and long-term disability benefits, including
                  maintenance care for disabilities that commenced before the
                  Effective Time for the period that the Bargaining Unit
                  Employee, USNewco Employee or the covered dependent of either
                  remains eligible for such benefits;

                       (ii) hospital and nursing home benefits for confinements
                  that commenced before the Effective Time, including any
                  doctor's visits during such confinements;

                       (iii) benefits for medical and dental services or
                  materials received before the Effective Time;

                       (iv) life and survivor income benefits for covered
                  dependent deaths which occur prior to the Effective Time; and

                       (v) educational assistance program benefits which were
                  approved prior to the Effective Time.

                  (y) Certain Employee Claims and Charges. For those
         employment-related claims which are not M-I Assumed Liabilities being
         assumed by USNewco, if any affirmative action (such as promotion,
         transfer and/or reinstatement) is required by reason of judicial
         determination, USNewco shall take such affirmative action, provided
         that Smith shall be liable for, and indemnify USNewco from and
         against, any liability, penalty, cost or expense, including, but not
         limited to, reasonable attorney fees, incurred by or imposed on
         USNewco as a result of such an action involving an employee or a
         former employee of the M-I Domestic Business. If, as part of a
         proposed settlement of any such claims, the affirmative action of
         USNewco is required, then USNewco shall take such affirmative action
         except for good cause, provided that Smith shall be liable for, and
         indemnify USNewco from and against, any liability, penalty, cost or
         expense, including, but not limited to, reasonable attorney fees,
         incurred by or imposed on USNewco as a result of such an action
         involving an employee or a former employee of the M-I Domestic
         Business. In addition to those claims or potential claims assumed by
         USNewco under any other provision of this Agreement, USNewco shall be
         liable for, and indemnify Schlumberger, Smith, SIAC and MIPC from and
         against, any liability, penalty, cost or expense, including, but not
         limited to, reasonable attorney fees, incurred by or imposed on a
         party as a result of claims by employees or former employees of the
         M-I Domestic Business of alleged violation of any statute, regulation,
         code, law or common law relating to the failure of USNewco to offer
         employment or the terms of the offer of employment, except with
         respect to any such liability, penalty, cost or expense relating to

                                     -24-

<PAGE>   28


         or arising from an action or inaction taken or failed to be taken by
         any party intended to be indemnified under this Section 4.4(d).
         Notwithstanding any other provision of this Agreement, neither the
         offer of employment to any employee or former employee of the M-I
         Domestic Business, nor the indemnification provisions contained in
         this Agreement, shall create any third-party beneficiary rights with
         respect to any party.

                  (z) No Right to Employment. Nothing in this Agreement,
         express or implied, shall confer upon any employee, legal
         representative thereof or any collective bargaining agent any rights
         or remedies, including, without limitation, any right to employment,
         or continued employment for any specified period or the benefits,
         terms and conditions thereof, of any nature or kind whatsoever under
         or by reason of this Agreement.


PROVISIONS REGARDING FOREIGN VENTURE ENTITIES' EMPLOYEES.

                  (aa) Non-U.S. Employees. The appropriate Foreign Venture
         Entities shall accept the transfer of employment from the Schlumberger
         Foreign Business and the M-I Foreign Business as of the Effective Time
         of all Expatriates, ICs and Foreign Employees (collectively, "Non-U.S.
         Employees"). Non-U.S. Employees accepting such employment shall be
         referred to as "Foreign Venture Entities' Employees" hereinafter. With
         respect to any Non-U.S. Employee on approved leave of absence as of
         the Effective Time, the only obligation of the appropriate Foreign
         Venture Entity shall be to offer employment to such Non-U.S. Employee
         at the end of such leave of absence if, and only if, such Foreign
         Venture Entity has an available employment position for such employee
         at the time such leave terminates, except as otherwise provided under
         local laws, statutes or regulations. Unless otherwise expressly
         provided herein, or as provided in the applicable Foreign Venture
         Entity Charter Documents or as the parties otherwise may agree, the
         terms and conditions of employment of the Foreign Venture Entities'
         Employees shall be determined by the appropriate Foreign Venture
         Entity that employs the Foreign Venture Entities' Employees. Foreign
         Venture Entities' Employees who are former employees of the
         Schlumberger Foreign Business shall receive payments from Schlumberger
         for their accrued and unused vacation days that they had earned under
         the vacation policies of the Schlumberger Foreign Business as of
         December 31, 1998, including any accrued and unused vacation days
         carried over from prior years; provided, however, that if any such
         payments are not permitted under applicable law, Schlumberger shall or
         shall cause the appropriate entity to transfer the related accrual and
         an equivalent amount of cash to the appropriate Foreign Venture
         Entity. Foreign Venture Entities' Employees shall receive credit under
         the appropriate Foreign Venture Entity vacation policy for their
         accrued and unused vacation days they had earned during 1999 under the
         vacation policy of the Schlumberger Foreign Business or the M-I
         Foreign Business, as appropriate, as of the Effective Time. Except as
         otherwise provided by local laws, statutes or regulations, any such
         vacation days not used by December 31, 1999 shall be forfeited as of
         January 1, 2000. M-I and Schlumberger agree that, except with the
         prior written consent of the other party, prior to the Effective Time
         each will use its best efforts to keep available the services of the
         present officers and key employees of the M-I Foreign Business and the
         Schlumberger Foreign Business, respectively.

                                     -25-

<PAGE>   29


                  (bb) Certain Obligations of the Parties. Smith and
         Schlumberger shall be solely responsible for payment of commissions,
         bonuses, pension benefits, welfare benefits, incentive or deferred
         compensation for the employees of the M-I Foreign Business and the
         Schlumberger Foreign Business, respectively, attributable to service
         rendered prior to the Effective Time. Smith and Schlumberger shall be
         solely responsible for welfare benefits, pension benefits and any
         other benefits under plans, programs, arrangements and/or personnel
         policies for the Non-U.S. Employees (and their eligible dependents and
         beneficiaries) of the M-I Foreign Business and the Schlumberger
         Foreign Business, respectively, who do not become Foreign Venture
         Entities' Employees. Smith and Schlumberger, respectively, shall
         remain responsible for providing certain benefits to each of its
         Non-U.S. Employees who become Foreign Venture Entities' Employees, as
         follows:

                       (i) weekly and long-term disability benefits, including
                  maintenance care for disabilities that commenced before the
                  Effective Time for the period that the Foreign Venture
                  Entities' Employee or the covered dependent of the Foreign
                  Venture Entities Employee remains eligible for such benefits;

                       (ii) hospital and nursing home benefits for confinements
                  that commenced before the Effective Time, including any
                  doctor's visits during such confinements;

                       (iii) benefits for medical and dental services or
                  materials received before the Effective Time;

                       (iv) life and survivor income benefits for covered
                  dependent deaths which occur prior to the Effective Time; and

                       (v) educational assistance program benefits which were
                  approved prior to the Effective Time.

                  (cc) Certain Employee Claims and Charges. For those
         employment-related claims which are not M-I Assumed Liabilities or
         Schlumberger Assumed Liabilities, if any affirmative action (such as
         promotion, transfer and/or reinstatement) is required by reason of
         judicial determination, the appropriate Foreign Venture Entity shall
         take such affirmative action, provided that Schlumberger, with respect
         to an action involving an employee or a former employee of the
         Schlumberger Foreign Business, and Smith, with respect to an action
         involving an employee or a former

                                     -26-

<PAGE>   30


         employee of the M-I Foreign Business, shall be liable for, and
         indemnify such Foreign Venture Entity from and against, any liability,
         penalty, cost or expense, including, but not limited to, reasonable
         attorney fees, incurred by or imposed on such Foreign Venture Entity
         as a result of such action. If, as part of a proposed settlement of
         any such claims, the affirmative action of a Foreign Venture Entity is
         required, then such Foreign Venture Entity shall take such affirmative
         action except for good cause, provided that Schlumberger, with respect
         to an action involving an employee or a former employee of the
         Schlumberger Foreign Business, and Smith, with respect to an action
         involving an employee or a former employee of the M-I Foreign
         Business, shall be liable for, and indemnify such Foreign Venture
         Entity from and against, any liability, penalty, cost or expense,
         including, but not limited to, reasonable attorney fees, incurred by
         or imposed on such Foreign Venture Entity as a result of such action.
         In addition to those claims or potential claims assumed by a Foreign
         Venture Entity under any other provision of this Agreement, M-I shall
         be liable for, and indemnify Schlumberger, Schlumberger MI, Smith,
         SIAC, MIPC and Smith Canada from and against, any liability, penalty,
         cost or expense, including, but not limited to, reasonable attorney
         fees, incurred by or imposed on a party as a result of claims by
         employees or former employees of the M-I Foreign Business and the
         Schlumberger Foreign Business of alleged violation of any statute,
         regulation, code, law or common law relating to the failure of a
         Foreign Venture Entity to offer employment or the terms of the offer
         of employment, except with respect to any such liability, penalty,
         cost or expense relating to or arising from an action or inaction
         taken or failed to be taken by any party intended to be indemnified
         under this Section 4.5(c). Notwithstanding any other provision of this
         Agreement, neither the offer of employment to any employee or former
         employee of the Schlumberger Foreign Business or the M-I Foreign
         Business, nor the indemnification provisions contained in this
         Agreement, shall create any third-party beneficiary rights with
         respect to any party.

                  (dd) No Right to Employment. Nothing in this Agreement,
         express or implied, shall confer upon any employee, legal
         representative thereof, or any collective bargaining agent any rights
         or remedies, including, without limitation, any right to employment,
         or continued employment for any specified period or the benefits,
         terms and conditions thereof, of any nature or kind whatsoever under
         or by reason of this Agreement.


USNEWCO EMPLOYEE BENEFIT PROGRAMS.

                  (ee) Termination Benefits.

                       (i) USNewco shall be responsible for severance pay, if
                  any, for any USNewco Employee it terminates. A USNewco
                  Employee who is involuntarily terminated after the first 90
                  days following the Effective Time shall receive a severance
                  benefit from USNewco determined under a severance plan having
                  terms and conditions no less favorable than the terms and
                  conditions of the M-I severance plan for similarly situated
                  Former M-I Domestic Employees as of the day prior to the
                  Effective Time ("USNewco Severance Plan"). The parties agree
                  that USNewco may amend or modify the USNewco Severance Plan
                  after the Effective Time at such times and in such manner as
                  it deems appropriate to provide reasonable severance benefits
                  to its employees.

                       (ii) The foregoing notwithstanding, a USNewco Employee
                  who is involuntarily terminated during the first 90 days
                  following the Effective Time shall receive a severance
                  benefit from USNewco determined under the terms and
                  conditions of the M-I Severance Plan applicable to such
                  USNewco Employee in effect or authorized as of the day prior
                  to the Effective Time, as described by M-I

                                     -27-

<PAGE>   31


                  in writing to USNewco, and that USNewco shall be reimbursed
                  by M-I for such severance amount and any other reasonable
                  costs, expenses or liabilities incurred by USNewco as a
                  result of paying such severance amount.

                  (ff) Employee Benefit Plans. Listed on Exhibit 4.6(b)-1 are
         all of the incentive, welfare, pension and retirement plans and
         arrangements in effect or authorized as of the Effective Time in
         respect of the employees of the M-I Domestic Business.

                  (gg) Welfare Plans.

                       (i) M-I agrees to cause USNewco to assume the
                  sponsorship of, and continue, on and after the Effective
                  Time, the M-I welfare plan program for similarly situated
                  Former M-I Domestic Employees in effect as of the day prior
                  to the Effective Time, consisting of medical, dental,
                  hospital, life and such other insurance benefits, for all of
                  the USNewco Employees. USNewco will take all such steps
                  necessary to facilitate, cause and accept such transfer of
                  plan sponsorship and continuation of the M-I domestic welfare
                  plan program as the USNewco welfare plan program.
                  Furthermore, M-I and USNewco shall timely comply with any
                  applicable requirements in connection with the transfer,
                  assumption and continuation of the M-I domestic welfare
                  benefit plans by USNewco under the Code, ERISA and any other
                  laws. M-I represents that the M-I domestic welfare plan
                  program complies in all material respect with the applicable
                  provisions of the Code and ERISA. Smith and SIAC shall be
                  responsible for, and agree to indemnify Schlumberger and
                  USNewco from and against, any liability, penalty, cost or
                  expense, including, but not limited to, reasonable attorney
                  fees, incurred by or imposed on Schlumberger and USNewco
                  related to the M-I domestic welfare plan program prior to the
                  program assumption date by USNewco. A summary of the terms of
                  the USNewco welfare plan program is attached hereto as
                  Exhibit 4.6(c)-1. Eligibility for, and the benefits of, the
                  USNewco welfare plan program will be determined by USNewco,
                  in accordance with the foregoing, except that the USNewco
                  welfare plan program, where applicable, will:

                            (1) waive application of its preexisting conditions
                       provision to any USNewco Employee or dependent thereof
                       for any medical condition such USNewco Employee or
                       dependent thereof has as of the Effective Time;

                            (2) recognize and apply to any deductibles under
                       USNewco's medical and dental plans, any medical and
                       dental expenses incurred by Former M-I Domestic
                       Employees that are applied toward their 1999 deductibles
                       under the applicable M-I medical and dental plans; and

                       (ii) To the extent reasonably possible, if the USNewco
                  Employees are not covered under the USNewco welfare plan
                  program as of the Effective Time, then effective as of the
                  Effective Time and until the date the USNewco

                                     -28-

<PAGE>   32


                  Employees are covered under the USNewco welfare plan program,
                  but not later than 90 days after the Effective Time, the
                  welfare benefit plans listed in Exhibit 4.6(c)-2 for the
                  benefit of USNewco Employees who are Former M-I Domestic
                  Employees will be provided for such employees. The welfare
                  benefit plans listed on such Exhibit are hereinafter called
                  "Prior Domestic Welfare Plans." For the period commencing on
                  the Effective Time and for so long as USNewco maintains the
                  Prior Domestic Welfare Plans, but not longer than the earlier
                  of the date the USNewco Employees are covered under the
                  USNewco welfare plan program or 90 days following the
                  Effective Time (the "Domestic Plans Extension Period"), Smith
                  shall provide to USNewco all administrative services in
                  connection with the Prior Domestic Welfare Plans. USNewco
                  shall reimburse Smith for all costs and expenses incurred by
                  Smith for the period from the Effective Date to the Effective
                  Time and during the Domestic Plans Extension Period and
                  associated with providing benefits, including claims paid,
                  under the Prior Domestic Welfare Plans. M-I represents with
                  respect to its Prior Domestic Welfare Plans that, to the
                  extent applicable, such plans comply in all material respects
                  with all applicable provisions of the Code and ERISA.

                       (iii) M-I and Schlumberger agree that USNewco, as
                  sponsor of its welfare plans, may amend or modify such plans
                  following the Domestic Plans Extension Period at such times
                  and in such manner as it deems appropriate to provide
                  reasonable benefits to its employees. M-I represents with
                  respect to its Prior Domestic Welfare Plans that such plans
                  and the benefits provided hereunder may be modified or
                  terminated at any time and that USNewco is not required to
                  continue any benefit available under a Prior Domestic Welfare
                  Plan.

                       (iv) Notwithstanding any other provision of this
                  Agreement, the parties agree that USNewco shall not provide
                  any postretirement medical ("Retiree Medical") benefits to
                  its employees, except as may be required to comply with
                  sections 601 through 609 of ERISA.

                  (hh) Pension and Retirement Plans.

                       (i) The USNewco Employees shall participate in the
                  tax-qualified M-I retirement plan for the benefit of
                  similarly situated employees of the M-I Domestic Business in
                  effect as of the day prior to the Effective Time, known as
                  the M-I Profit Sharing and Savings Plan ("M-I Profit-Sharing
                  Plan"), on and after the Effective Time (the "USNewco
                  Profit-Sharing Plan"). M-I shall cause USNewco to assume the
                  sponsorship of the M-I Profit-Sharing Plan, effective as of
                  the Effective Time, and USNewco will take all such steps
                  necessary to facilitate, cause and accept such transfer of
                  plan sponsorship. After the transfer of plan sponsorship,
                  USNewco shall timely take all actions necessary to ensure the
                  plan's continued qualification under the Code, and continued
                  compliance with ERISA and any other applicable laws. Each
                  USNewco Employee, for purposes of vesting and eligibility
                  under the USNewco Profit-Sharing Plan, will be credited

                                     -29-

<PAGE>   33


                  with service equal to the eligibility and vesting service
                  such employee had earned as of the Effective Time under the
                  M-I Profit-Sharing Plan.

                       (ii) M-I and Schlumberger agree that USNewco, as plan
                  sponsor, may amend or modify the USNewco Profit-Sharing Plan
                  following the Effective Time at such times and in such manner
                  as it deems appropriate to provide reasonable benefits to its
                  employees and to maintain the tax-qualified status of the
                  plan and for the plan to remain in compliance with ERISA.

                       (iii) M-I, Smith, SIAC and MIPC, with respect to the M-I
                  Profit-Sharing Plan, represent and warrant that the plan, and
                  its related trust, meet, in all material respects, the
                  applicable requirements for qualification under Sections
                  401(a) and (k) and 501(a) of the Code and comply in all
                  material respects with ERISA. M-I, Smith, SIAC and MIPC agree
                  to indemnify Schlumberger and Schlumberger MI from and
                  against any liability, penalty, cost or expense, including,
                  but not limited to, reasonable attorney fees, incurred by or
                  imposed on Schlumberger related to the M-I Profit-Sharing
                  Plan prior to the Effective Time.

                  (ii) Vacation, Compensation, and Other Employee Benefits.

                       (i) In addition to any vacation days provided under
                  Section 4.4(a), the parties agree that USNewco Employees
                  shall be entitled to vacation benefits under the USNewco
                  vacation policy, on and after the Effective Time, which are
                  the same, to the extent reasonably possible, as provided
                  under the M-I vacation policy in effect or authorized as of
                  the day immediately prior to the Effective Time. Accordingly,
                  under such policy, based on seniority, USNewco Employees will
                  be entitled to vacation benefits of no less than: (1) 10
                  working days, for 1 to 4 years of service; (2) 15 working
                  days, for 5 to 9 years of service; (3) 20 working days, for
                  10 to 19 years of service; and (4) 25 working days, for 20 or
                  more years of service.

                       (ii) The parties agree that USNewco shall adopt for the
                  USNewco Employees the salary, performance incentive plan, and
                  job bonus structures and policies of M-I in effect or
                  authorized as of the day immediately prior to the Effective
                  Time.

                       (iii) Except as otherwise provided, for purposes of the
                  benefits provided under this Section 4.6, a USNewco
                  Employee's seniority shall include his or her employment with
                  M-I prior to the Effective Time.


FOREIGN VENTURE ENTITIES' EMPLOYEE BENEFIT PROGRAMS.

                  (jj) Termination Benefits. Except as provided in Section 4.3
         and below with respect to M-I Canada, the appropriate Foreign Venture
         Entity shall be responsible for severance pay, if any, for Foreign
         Venture Entities' Employees whose employment is terminated by such
         Foreign Venture Entity. A Foreign Venture Entities Employee's

                                     -30-

<PAGE>   34


         severance benefit shall be determined under the appropriate Foreign
         Venture Entity severance plan having terms and conditions no less
         favorable than the terms and conditions under the applicable M-I
         severance plan for similarly situated Former M-I Foreign Employees as
         of the day prior to the Effective Time. The foregoing notwithstanding,
         if a Foreign Venture Entities Employee who is a Former Schlumberger
         Employee entitled to a benefit under Schlumberger's Cash Separation
         Indemnity program ("CSI") as of the Effective Time is terminated,
         voluntarily or involuntarily, after the 90th day following the
         Effective Time, then the Former Schlumberger Employee shall receive a
         benefit under the CSI, determined under the terms and conditions of
         the CSI, provided such employee is eligible for a CSI benefit based on
         his or her years of service with Schlumberger and the Foreign Venture
         Entities as of the termination date. In such a case, the parties agree
         that (1) if the Former Schlumberger Employee's CSI benefit exceeds the
         severance benefit such employee would receive under the applicable
         Foreign Venture Entity severance plan, then such employee shall not
         receive a severance benefit under the applicable Foreign Venture
         Entity severance plan and (2) if the Former Schlumberger Employee's
         CSI benefit is less than the severance benefit such employee would
         receive under the applicable Foreign Venture Entity severance plan,
         then such employee shall receive a severance under the applicable
         Foreign Venture Entity severance plan that is reduced by the amount of
         such employee's CSI benefit. To the extent the actions described in
         the preceding sentence otherwise violate local law, the parties agree
         to take such actions as necessary to accomplish the intent of the
         preceding sentence. The above notwithstanding, in the case of
         employees of M-I Canada who are eligible for benefits under Canadian
         law ("Canadian Employees"), such employees' severance pay and other
         benefits shall be as provided under applicable Canadian provincial
         laws.

                  (kk) Employee Benefit Plans. Listed on Exhibit 4.7(b)-1, in
         the case of M-I, and Exhibit 4.7(b)-2, in the case of Schlumberger,
         are all of the incentive, welfare, pension and retirement plans and
         arrangements in effect or authorized as of the Effective Time in
         respect of the employees of the M-I Foreign Business and the
         Schlumberger Foreign Business.

                  (ll) Welfare Plans.

                       (i) Employees of M-I Canada on and after the Effective
                  Time shall be provided the benefits provided under the M-I
                  Canada welfare plan program as in effect as of the day prior
                  to the Effective Time; provided, however, that M-I Canada may
                  amend or modify such program at such times and in such manner
                  as it deems appropriate to provide reasonable benefits to its
                  employees, to the extent possible by law, after the Effective
                  Time. With respect to non-M-I Canada employees, M-I shall
                  cause the appropriate Foreign Venture Entities to assume the
                  sponsorship of, and continue, on and after the Effective
                  Date, the M-I welfare plan program for similarly situated
                  Former M-I Foreign Employees in effect as of the day prior to
                  the Effective Time, consisting of medical, hospital, life and
                  such other insurance benefits, for all of the Foreign Venture
                  Entities' Employees. The Foreign Venture Entities shall take
                  all such steps necessary to facilitate, cause and

                                     -31-

<PAGE>   35


                  accept such transfer of plan sponsorship and continuation of
                  the M-I foreign welfare plan program as the Foreign Venture
                  Entities welfare plan program. Furthermore, M-I and the
                  Foreign Venture Entities shall timely comply with any
                  applicable requirements in connection with the transfer,
                  assumption and continuation of the M-I foreign welfare plan
                  program under the applicable laws. M-I represents that the
                  M-I foreign welfare plan program complies in all material
                  respect with the applicable laws. Smith and SIAC shall be
                  responsible for, and agree to indemnify Schlumberger and the
                  Foreign Venture Entities from and against, any liability,
                  penalty, cost or expense, including, but not limited to,
                  reasonable attorney fees, incurred by or imposed on
                  Schlumberger and the Foreign Venture Entities related to the
                  M-I foreign welfare plan program prior to the program
                  assumption date by the Foreign Venture Entities. A summary of
                  the terms of the Foreign Venture Entities welfare plan
                  program, including such benefits for employees of M-I Canada
                  and the Foreign Venture Entities' Employees who are eligible
                  for benefits in the U.K., is attached hereto as Exhibit
                  4.7(c)-1. Eligibility for, and the benefits of, the Foreign
                  Venture Entities welfare plan program will be determined by
                  the Foreign Venture Entities, in accordance with the
                  foregoing, except that the Foreign Venture Entities welfare
                  plan program, where applicable and in accordance with
                  applicable law, will:

                            (1) waive application of its preexisting conditions
                       provision to any Foreign Venture Entities' Employee or
                       his or her dependent for any medical condition such
                       Foreign Venture Entities Employee or dependent has as of
                       the Effective Time; and

                            (2) recognize and apply to any deductibles under
                       the Foreign Venture Entities medical and dental plans,
                       any medical and dental expenses incurred by Former
                       Schlumberger Employees and Former M-I Foreign Employees
                       that are applied toward their 1999 deductibles under the
                       applicable Schlumberger and M-I medical and dental
                       plans.

                       (ii) To the extent reasonably possible, if the Foreign
                  Venture Entities' Employees are not covered under the Foreign
                  Venture Entities' welfare plan program as of the Effective
                  Time, then effective as of the Effective Time and until the
                  date the Foreign Venture Entities' Employees are covered
                  under the Foreign Venture Entities welfare plan program, but
                  not later than 90 days after the Effective Time, the welfare
                  benefit plans listed in Exhibit 4.7(c)-2 for the benefit of
                  the Foreign Venture Entities' Employees who are Former
                  Schlumberger Employees and the welfare benefit plans listed
                  in Exhibit 4.7(c)-3 for the benefit of the Foreign Ventures
                  Entities' Employees who are Former M-I Foreign Employees will
                  be provided for such employees, as applicable. The welfare
                  benefit plans listed on such Exhibits are hereinafter called
                  "Prior Foreign Welfare Plans." For the period commencing as
                  of the Effective Time and for so long as the Foreign Venture
                  Entities maintain the Prior Foreign Welfare Plans, but not
                  longer than the earlier of the date the Foreign Venture
                  Entities' Employees are

                                     -32-

<PAGE>   36


                  covered under the Foreign Venture Entities welfare plan
                  program or 90 days following the Effective Time (the "Foreign
                  Plans Extension Period"), Smith and Schlumberger shall
                  provide to the Foreign Venture Entities all administrative
                  services in connection with its Prior Foreign Welfare Plans.
                  The Foreign Venture Entities shall reimburse Smith and
                  Schlumberger for all costs and expenses incurred for the
                  period as of Effective Time to the Effective Time and during
                  the Foreign Plans Extension Period and associated with
                  providing benefits, including claims paid, under the Prior
                  Foreign Welfare Plans. M-I and Schlumberger represent with
                  respect to each such party's Prior Foreign Welfare Plans that
                  to the extent applicable, such plans comply in all material
                  respects with all applicable laws.

                       (iii) M-I and Schlumberger agree that the Foreign
                  Venture Entities, as sponsors of the appropriate welfare
                  plans, may amend or modify such plans following the Foreign
                  Plans Extension Period at such times and such manners as each
                  deems appropriate to provide reasonable welfare benefits to
                  its employees. M-I and Schlumberger represent with respect to
                  each such party's Prior Foreign Welfare Plans that such plans
                  and the benefits provided thereunder may be modified or
                  terminated at any time and that the Foreign Venture Entities
                  are not required to continue any benefit available under a
                  Prior Foreign Welfare Plan.

                       (iv) Notwithstanding any other provision of this
                  Agreement, the parties agree that the Foreign Venture
                  Entities shall not provide any Retiree Medical benefits to
                  its employees. Former Schlumberger Employees who are entitled
                  to participate under Schlumberger's deferred medical plan
                  ("DMP") and are age 50 or older as of the Effective Time
                  shall continue to be eligible to participate under the DMP,
                  subject to the terms and conditions of such plan; Former
                  Schlumberger Employees who are entitled to participate under
                  the DMP and are under age 50 as of the Effective Time shall
                  no longer be eligible to participate under the DMP on and
                  after the Effective Time and such employees' DMP
                  contributions shall be returned to them as provided under the
                  terms and conditions of the DMP as if their employment had
                  been terminated; and Canadian Employees who are over age 55
                  with 20 years of service with Schlumberger as of the
                  Effective Time, and subsequently retire directly from a
                  Foreign Venture Entity, shall continue to be eligible to
                  participate under the Schlumberger retiree medical benefits
                  plan for such employees, subject to and under the terms and
                  conditions of such plan, in each case, solely at
                  Schlumberger's cost. Schlumberger agrees to indemnify the
                  Foreign Venture Entities from and against any liability,
                  penalty, cost or expense, including, but not limited to,
                  reasonable attorney fees, incurred by or imposed on any
                  Foreign Venture Entity related to Retiree Medical benefits
                  provided by Schlumberger.

                  (mm) Pension and Retirement Plans. Subject to the provisions
         of the relevant pension and retirement plan documents and applicable
         law:

                                     -33-

<PAGE>   37


                       (i) The Foreign Venture Entities' Employees shall
                  participate in the appropriate M-I foreign pension and
                  profit-sharing plans for the benefit of similarly situated
                  employees of the M-I Foreign Business in effect as of the day
                  prior to the Effective Time ("M-I Foreign Plans"), on and
                  after the Effective Time ("Foreign Venture Entities' Foreign
                  Plans"). Subject to the requirements of applicable local
                  laws, statutes and regulations, M-I shall cause the
                  appropriate Foreign Venture Entities to assume the
                  sponsorship of the M-I Foreign Plans, effective as of the
                  Effective Time, and the Foreign Venture Entities will take
                  all steps necessary to facilitate, cause and accept such
                  transfer of plan sponsorship. As soon as practicable after
                  the transfer of plan sponsorship, the appropriate Foreign
                  Venture Entities shall timely comply with any reporting and
                  qualification requirements in connection with such transfer
                  and assumption that may be required under applicable laws.
                  Each Foreign Venture Entities Employee, for purposes of
                  vesting and eligibility under the Foreign Venture Entities'
                  Foreign Plans, will be credited with service equal to the
                  eligibility and vesting service such employee had earned as
                  of the Effective Time under (1) the applicable Schlumberger
                  foreign retirement and profit sharing plans ("Schlumberger
                  Foreign Plans") and (2) M-I Foreign Plans, whichever is
                  applicable.

                       (ii) As provided in Section 4.3(d), the parties agree
                  that the accrued pension benefits and account balances of the
                  Former Schlumberger Employees under the Schlumberger Foreign
                  Plans shall not be transferred to the Foreign Venture
                  Entities' Foreign Plans. Benefits payable, if any, to Former
                  Schlumberger Employees under any of the Schlumberger Foreign
                  Plans shall be determined in accordance with the provisions
                  of such plans in effect as of the Effective Time. If after
                  the Effective Time Schlumberger updates the benefits under an
                  applicable Schlumberger Foreign Plan, then a Former
                  Schlumberger Employee's benefit under such plan shall be
                  increased by Schlumberger solely at its cost in the same
                  manner as a similarly-situated, active employee participating
                  in such plan, provided such employee is employed with a
                  Foreign Venture Entity as of the effective date of the
                  change. Further, each Former Schlumberger Employee shall be
                  credited under the applicable Schlumberger Foreign Plan with
                  such employee's period of employment with a Foreign Venture
                  Entity following the Effective Time for purposes of
                  determining the date such employee may first commence payment
                  of benefits under the applicable plan, including early
                  retirement. The subsequent transfer of employment of a Former
                  Schlumberger Employee from a Foreign Venture Entity to Smith
                  or any of Smith's divisions, subsidiaries or affiliates shall
                  be deemed to be termination of employment for purposes of the
                  applicable Schlumberger Foreign Plans. The Foreign Venture
                  Entities agree to notify Schlumberger of the severance or
                  transfer of employment of any Former Schlumberger Employee.

                       (iii) M-I, Smith, SIAC and MIPC, with respect to the M-I
                  Foreign Plans, represent and warrant that such plans, and
                  their related trusts, are in compliance with and meet in all
                  substantial respects all applicable laws, statutes,

                                     -34-

<PAGE>   38


                  rules and regulations governing such plans and that, to the
                  knowledge of M-I, Smith, SIAC and MIPC, no M-I Foreign Plan
                  is subject to an ongoing audit, investigation or other
                  administrative proceeding of any local governmental entity or
                  is scheduled to be subject to an audit, investigation or
                  proceeding. M-I, Smith, SIAC and MIPC additionally represent
                  and warrant that, with respect to the M-I Foreign Plans, and
                  their related trusts, to the knowledge of M-I, Smith, SIAC
                  and MIPC, there exists no condition or set of circumstances
                  that could subject M-I, Smith, SIAC or MIPC, or any of their
                  subsidiaries or affiliates, to any liability arising under
                  any applicable laws (including under any indemnity agreement
                  to which M-I, Smith, SIAC or MIPC, or any of their
                  subsidiaries or affiliates, is a party). No claim, action or
                  litigation has been made, commenced or threatened by or
                  against M-I, Smith, SIAC or MIPC, or any of their
                  subsidiaries or affiliates, with respect to any M-I Foreign
                  Plan. M-I, Smith, SIAC and MIPC agree to indemnify
                  Schlumberger from and against any liability, penalty, cost or
                  expense, including, but not limited to, reasonable attorney
                  fees, incurred or imposed on Schlumberger related to the M-I
                  Foreign Plans prior to the Effective Time.

                  (nn) Vacation, Compensation and Other Employee Benefits.

                       (i) In addition to any vacation days provided under
                  Section 4.5(a), the parties agree that the Foreign Venture
                  Entities' Employees shall be entitled to vacation benefits
                  under the Foreign Venture Entities' vacation policies, on and
                  after the Effective Time, which are the same, to the extent
                  reasonably possible, as provided under the M-I vacation
                  policy in effect or authorized as of the day immediately
                  prior to the Effective Time.

                       (ii) The parties agree that salary, performance
                  incentive plan, job bonus, tax equalization and housing
                  allowance structures and policies of M-I in effect or
                  authorized as of the day immediately prior to the Effective
                  Time shall apply to all Foreign Venture Entities' Employees.

                       (iii) Except as otherwise provided, for purposes of the
                  benefits provided under Section 4.7, Foreign Venture
                  Entities' Employees' seniority shall include employment with
                  Schlumberger or M-I, as applicable, prior to the Effective
                  Time.


INSURANCE AND WARRANTY SERVICE.

                  (oo) Each Venture Entity shall procure and maintain adequate
         insurance covering its operations and assets. In the event
         satisfactory separate coverage cannot be obtained, coverage may be
         provided under master policies of either Smith or Schlumberger with
         the express approval of the board of directors, management committee
         or other governing body of that Venture Entity and both Smith and
         Schlumberger. It will be the joint responsibility of the insurance
         departments of both Smith and Schlumberger to use their reasonable
         best efforts to arrange for such insurance coverage to the extent such
         coverage is available.

                                     -35-

<PAGE>   39


                  (pp) Each Venture Entity shall be responsible for all
         Warranty and Warranty Service on all products, installations and
         services relating to the Schlumberger Acquired Assets currently
         covered by a Schlumberger Warranty whether said products or services
         were sold, delivered or rendered prior to or subsequent to the
         Effective Time. The Schlumberger Warranties are attached hereto as
         Exhibit 4.8(b). Except for the Warranty and Warranty Services to be
         provided under this Section 4.8, all claims seeking recovery for
         property damage, consequential damage, lost revenue or income or
         personal injuries shall be for the account of Schlumberger or Smith,
         as the case may be, to the same extent as is provided with respect to
         indemnity in Article 6.

BULK SALES ACTS. The parties agree that no special notification shall be given
to their respective creditors under the bulk sales laws and any other similar
laws in any applicable jurisdiction in connection with the transactions
contemplated by this Agreement. Each party agrees promptly and diligently to pay
and discharge when due or to contest and litigate all claims of its respective
creditors that are asserted against any party or any of the Venture Entities by
reason of any asserted noncompliance with any such bulk sales laws, and to
indemnify and hold the other parties and the Venture Entities harmless
therefrom, except such claims as arise out of any Schlumberger Assumed
Liabilities or any M-I Assumed Liabilities.

ACCOUNTS RECEIVABLE.

                  (qq) The parties acknowledge that Schlumberger is not
         transferring to any of the Venture Entities any receivables
         attributable to the Schlumberger Drilling Fluids Business for the
         period prior to the Accounting Date. Accordingly, Schlumberger retains
         responsibility for collection of customer accounts, whether an open
         account, note account or combination of both, for the period prior to
         the Accounting Date, and Schlumberger will be responsible for its own
         collection efforts and applicable expenses related to such
         receivables. Further, to the extent a Venture Entity collects any
         amounts attributable to such receivables, then that Venture Entity
         shall promptly remit such amounts to Schlumberger or Schlumberger's
         designee.

                  (rr) The parties agree to review any accounts receivable
         included in the M-I Acquired Assets as of the Accounting Date which
         have not been collected in full or written off as uncollectible by the
         Venture Entities by in each case the later of the first anniversary of
         the Accounting Date or the date that is six months after the due date
         to determine whether any such accounts receivable should be written
         off as uncollectible. Any such amounts written off in excess of the
         amount of any accruals therefor as reflected in the M-I Balance Sheet,
         as supplemented, at the Accounting Date shall be included in the
         indemnification provisions of Section 6.2 and the calculation of the
         $5,000,000 amount in Section 6.6.

                                     -36-

<PAGE>   40


FURTHER ACTIONS. The parties acknowledge that merger or transfer of the
Schlumberger Drilling Fluids Business and the M-I Drilling Fluids Business may
not occur prior to or on the Closing Date. Nevertheless, the parties shall
endeavor in good faith to work toward implementation of an international
reorganization plan for the Schlumberger Drilling Fluids Business and the M-I
Drilling Fluids Business as set forth in the International Reorganization
Protocol (the "Protocol"), a copy of which is attached hereto as Exhibit 4.11,
after the Closing Date for whatever period of time is required to complete said
international reorganization plan consistent with Article 2 and Article 3. Each
of the parties shall be given prior notice of any changes or proposed changes in
the transactions described in the Protocol. Furthermore, until such
international reorganization plan is implemented in a specific foreign location,
the parties shall use their reasonable best efforts to conduct the operations of
the Schlumberger Drilling Fluids Business and the M-I Drilling Fluids Business
in said specific foreign location for the benefit of the applicable Venture
Entity, whether such operations be through a separate foreign subsidiary,
affiliate or branch comprised totally of the Schlumberger Drilling Fluids
Business or the M-I Drilling Fluids Business at that location or merely as a
part of a party or a party's foreign subsidiary, affiliate or branch operations
in said location. Each of the parties agrees to use its reasonable best efforts
to take, or cause to be taken, and the parties agree to use their reasonable
best efforts to cause each Venture Entity to take, all actions and to do, or
cause to be done, all things necessary, proper or advisable to consummate and
make effective the transactions contemplated by this Agreement and the Protocol,
whether prior to or on or after the Closing Date, including using its reasonable
best efforts: (a) to obtain prior to or promptly following the Closing Date all
licenses, permits, consents, approvals, authorizations, qualifications and
orders of governmental authorities and parties to contracts with such party as
are necessary for the consummation of such transaction; (b) to effect all
necessary registrations and filings; (c) to defend any lawsuits or other legal
proceedings, whether judicial or administrative, calling into question this
Agreement or the consummation of the transactions contemplated hereby; (d) to
furnish to the other parties such documentation, information and assistance as
reasonably may be requested in connection with the foregoing; and (e) if any
required consent of any third party under any contract, lease or agreement shall
not be obtained or if any attempted assignment thereof would be ineffective or
would impair a Venture Entity's rights thereunder so that such Venture Entity
would not in effect acquire the benefit of all of the rights of Schlumberger or
M-I, as applicable, to act, to the extent permitted by applicable law, as such
Venture Entity's agent in order for that Venture Entity to obtain or

                                     -37-

<PAGE>   41


assume the benefits or obligations thereunder, and to cooperate, to the extent
permitted by applicable law, within any other reasonable arrangement designated
to obtain or assume such benefits or obligations for that Venture Entity. The
parties agree from time to time to (a) execute, deliver and, when appropriate,
record any such documents of transfer, conveyance and assignment in mutually
agreeable form in addition to those referenced in Section 3.3 and (b) take such
other actions as the parties shall agree are necessary or appropriate to
accomplish the transactions contemplated hereby, including the grants of
licenses described in Section 3.4(a) and Section 3.4(b).


USE OF CERTAIN FACILITIES. With respect to non-U.S. properties or facilities of
Schlumberger not being transferred to a Foreign Venture Entity, but which were
used or jointly used by the Schlumberger Drilling Fluids Business prior to the
Effective Time, such properties or facilities may be made reasonably available
to the appropriate Foreign Venture Entity pursuant to written leases or other
documents upon terms and conditions as may be agreed by the parties. Except as
otherwise agreed to in such written leases or other documents, Schlumberger may
terminate, without liability, any such arrangement on 180 days' prior written
notice to the appropriate Foreign Venture Entity.


EXPENSES.

                  (ss) Except as otherwise specifically provided in this
         Agreement and whether or not the Closing occurs, Smith, SIAC, MIPC and
         Smith Canada shall pay (i) all expenses incurred by or on behalf of
         Smith, SIAC, MIPC, Smith Canada, M-I and each Venture Entity or any of
         their affiliates in connection with the preparation, authorization and
         execution of this Agreement, the formation of the Venture Entities,
         the conveyance, transfer, assignment and delivery of the M-I Drilling
         Fluids Business, including all fees and expenses of agents,
         representatives, counsel and accountants, (ii) all federal, state,
         local and foreign taxes arising out of the formation of the Venture
         Entities and the conveyance, transfer, assignment and delivery of the
         M-I Drilling Fluids Business and (iii) all amounts payable with
         respect to any claim for brokerage or finders' fees or other
         commissions with respect to the transactions contemplated by this
         Agreement based in any way on any agreement, arrangement or
         understanding made by Smith, SIAC, MIPC, Smith Canada, M-I Canada, M-I
         or any of their affiliates; provided, however, that Schlumberger shall
         reimburse Smith or Smith's subsidiaries for (i) up to $600,000 of the
         fees and expenses of agents, representatives, counsel and accountants
         incurred in connection with the formation of and contribution of
         assets to BVINewco and Dutchco, (ii) the first $1,000,000 of any
         foreign taxes referred to above and (iii) one half of the foreign
         taxes referred to above between $1,000,000 and $3,000,000. Smith shall
         pay all

                                     -38-

<PAGE>   42


         amounts Schlumberger is not required to reimburse pursuant to clauses
         (i), (ii) or (iii); and provided further, that the amount of foreign
         taxes required to be reimbursed by Schlumberger pursuant to clauses
         (ii) and (iii) shall be reduced by any credit against U.S. tax or
         other tax benefit obtained by Smith or its subsidiaries as a direct
         result of the payment of such foreign taxes.

                  (tt) Except as otherwise specifically provided in this
         Agreement and whether or not the Closing occurs, Schlumberger shall
         pay (i) all expenses incurred by or on behalf of Schlumberger or any
         of its affiliates in connection with the preparation, authorization,
         and execution of this Agreement, and the conveyance, transfer,
         assignment and delivery of the Schlumberger Drilling Fluids Business
         to the Foreign Venture Entities, including all fees and expenses of
         agents, representatives, counsel and accountants, (ii) all federal,
         state, local and foreign taxes arising out of the conveyance,
         transfer, assignment and delivery of the Schlumberger Drilling Fluids
         Business to the Foreign Venture Entities, including any foreign taxes
         incurred by Dutchco in connection with transfers by Schlumberger of
         cash or assets to Dutchco, and (iii) all amounts payable with respect
         to any claim for brokerage or finders' fees or other commissions with
         respect to the transactions contemplated by this Agreement based in
         any way on any agreement, arrangement or understanding made by
         Schlumberger or any of its affiliates.


BOOKS OF ACCOUNT AND SPECIAL RIGHTS.

                  (uu) As indicated above, the assets transferred to the
         Foreign Venture Entities by Schlumberger include Schlumberger's
         rights, if any, to the trade names, trademarks and trade secrets used
         in the businesses of the Schlumberger Drilling Fluids Business that
         are listed in the Exhibits to Section 2.4. Except as provided below,
         no Foreign Venture Entity shall receive or utilize any rights or
         interest in the names of Schlumberger Limited or its affiliates or any
         other name, logo, abbreviation, word or combination thereof of similar
         import. It is hereby agreed that the Foreign Venture Entities may
         utilize, at their sole option, the following items:

                       (i) Without limitation of time, the Foreign Venture
                  Entities may use manuals, technical specifications,
                  descriptive literature and catalogs in existence at the
                  Effective Time and bearing Schlumberger's name or marks,
                  provided that the name and marks are stamped or overprinted
                  with that Foreign Venture Entity's own name or marks;

                       (ii) The Foreign Venture Entities shall have a period of
                  180 days after the Effective Time within which to change the
                  names or marks of Schlumberger on the exterior of any
                  buildings or leaseholds transferred to the Foreign Venture
                  Entities and to change any names or marks of Schlumberger on
                  the motor vehicles transferred hereby;

                       (iii) The Foreign Venture Entities shall have the right
                  to sell any of the inventories or products that are in bags
                  or other containers bearing any of the

                                     -39-

<PAGE>   43


                  names or marks of Schlumberger, so long as the inventories or
                  products produced after 180 days following the Effective Time
                  are not packaged in bags or other containers that bear such
                  names or marks; and

                       (iv) Notwithstanding anything to the contrary herein,
                  Schlumberger hereby agrees to allow the Venture Entities to
                  utilize in their respective businesses, both within the
                  United States and in foreign jurisdictions, the phrase "A
                  [insert entity type] owned by Smith International, Inc. and
                  Schlumberger Limited" or a phrase(s) of substantially similar
                  content. It is agreed that the Venture Entities may use said
                  phrase in any advertising material, letterhead, packaging or
                  on any other necessary or desirable signs, notices or printed
                  material; provided, however, that it is agreed that the
                  rights to use said phrase as herein granted to the Venture
                  Entities shall cease within 180 days following the date on
                  which Smith's indirect interest or Schlumberger's indirect
                  interest in the applicable Venture Entity falls below 30%,
                  respectively.

                  (vv) Except as set forth in this Article 4, Schlumberger will
         transfer to the appropriate Foreign Venture Entity all of its books
         and records (for both financial reporting and tax purposes) relating
         exclusively to the Schlumberger Drilling Fluids Business. Smith, SIAC,
         Smith Canada, M-I and M-I Canada agree that they will and will cause
         the applicable Foreign Venture Entities to make such books and records
         available to Schlumberger for inspection during the regular business
         hours for a period of six years following the Effective Time, and that
         Schlumberger may, at its own expense, make such copies of such books
         and records as it may deem necessary. No Foreign Venture Entity shall
         destroy any of such books and records without the prior written
         consent of Schlumberger. Schlumberger further agrees to cooperate with
         the other parties and with the Foreign Venture Entities to make
         available from time to time to each other all other books and records
         relating to the Schlumberger Drilling Fluids Business for any valid
         purpose relating to the Schlumberger Drilling Fluids Business;
         provided, however, that Schlumberger may, in its discretion, require
         any such party to execute a confidentiality agreement relating to the
         information contained in such books and records. Notwithstanding the
         agreements contained in this Article 4, Schlumberger will retain all
         the accounting books and records (for both financial reporting and tax
         accounting purposes) (the "Retained Records") as such books and
         records relate to divisions whereby the transactions contemplated by
         this Agreement and the Protocol will be accomplished by means of a
         transfer of assets to a Venture Entity. Schlumberger will provide the
         other parties and the Foreign Venture Entities access to the Retained
         Records during the same term and subject to the same conditions as
         described in this Article 4 with respect to books and records
         transferred to the Foreign Venture Entities.


FIREWALLS.

                  (ww) Schlumberger shall not exchange, disclose, discuss or
         otherwise make available to Smith, SIAC, MIPC, Smith Canada, M-I or
         any of the Venture Entities, any

                                     -40-

<PAGE>   44


         Non-Public Information of Schlumberger relating to any Non-Acquired
         Schlumberger Businesses or any Non-Acquired Schlumberger Assets.

                  (xx) Smith, SIAC, MIPC, Smith Canada, M-I Canada and M-I
         shall not, and Smith, SIAC and Smith Canada shall cause each Venture
         Entity not to, exchange, disclose, discuss or otherwise make available
         to Schlumberger any Non-Public Information of Smith relating to any
         Non-M-I Smith Business.

TECHNICAL AND ENVIRONMENTAL COMMITTEES.

                  (yy) Promptly after execution of this Agreement, the Venture
         Entities and Schlumberger shall jointly establish a technical
         committee (the "Technical Committee") for the purpose of evaluating
         what assets, facilities, software, intellectual property and
         engineering developments of Schlumberger and its affiliates that are
         not used or owned exclusively by the Schlumberger Drilling Fluids
         Business and therefore not included in the Exhibits to Section 2.4,
         but which are used to some degree by the Schlumberger Drilling Fluids
         Business or which Schlumberger or the Foreign Venture Entities believe
         may have useful applications to the business and operations of the
         Foreign Venture Entities and that the Foreign Venture Entities may
         want access to by way of a transfer, lease or license of such assets.
         If a Foreign Venture Entity desires access to a particular asset, the
         Technical Committee shall work in good faith to establish mutually
         agreeable terms upon which that Foreign Venture Entity may be provided
         access to such asset. Any such agreement for such access shall be
         subject to the approval of the board of directors, management
         committee or other governing body of the applicable Foreign Venture
         Entity and the approval of Schlumberger. The applicable Foreign
         Venture Entity shall execute a confidentiality agreement in
         substantially the form of Exhibit 4.16 before being granted access to
         any confidential information of Schlumberger or any of its affiliates
         in connection herewith.

                  (zz) Promptly after execution of this Agreement, Smith and
         Schlumberger shall jointly establish an environmental committee (the
         "Environmental Committee"). The Environmental Committee shall work in
         good faith to monitor the environmental, health and safety matters
         described in Section 6.2(b), Section 6.3(b) and the disclosure letters
         thereto and the indemnities related thereto and to recommend to Smith
         and Schlumberger the appropriate allocation of liability or
         responsibility related thereto. The Environmental Committee shall meet
         at mutually agreed upon times and places to perform its obligations
         under this Section 4.16(b).


POST-CLOSING TECHNICAL SUPPORT.

                  (aaa) After the Closing, to the extent that a Venture Entity
         needs or desires technical support in the area of research and
         development, that Venture Entity shall first inquire as to whether
         Schlumberger has the technical knowledge and capability to lend such
         technical support before approaching any third party. If Schlumberger
         is willing and able to provide such technical support on terms and
         conditions that are not materially less

                                     -41-

<PAGE>   45


         favorable than are obtainable from a similarly qualified third party,
         then that Venture Entity shall contract with Schlumberger for such
         technical support. Attached hereto as Exhibit 4.17 is a form of
         agreement relating to the provision of research and development
         support by Schlumberger and a list of typical costs for such support.
         The parties shall execute an agreement in substantially such form
         prior to the support being furnished. Unless otherwise agreed to in a
         specific research and development agreement, any intellectual property
         developed pursuant to this Section 4.17 shall belong to and be owned
         by the appropriate Venture Entity; provided, however, that
         Schlumberger shall have the right to an exclusive, royalty-free
         license with respect to such intellectual property.

                  (bbb) After the Closing, to the extent that a Venture Entity
         needs or desires support in such areas as financial, administrative or
         legal operations or the use of additional facilities, that Venture
         Entity shall first inquire as to whether Schlumberger has the
         capability to provide such support or facilities before approaching
         any third party. If Schlumberger is willing and able to provide such
         support or facilities on terms and conditions that are at least as
         favorable as are obtainable from a similarly qualified third party,
         and, with respect to facilities, facilities that are at least as
         suitable to that Venture Entity's needs, then that Venture Entity
         shall contract with Schlumberger for such support or facilities.

VENTURE ENTITY AUDITS. There shall be an annual audit of the aggregate
operations and businesses of the Venture Entities, taken as a whole, conducted
by an independent accounting firm. The parties agree to, and agree to cause each
of the Venture Entities to, cooperate with such accounting firm with respect to
such audits and to make the results thereof available to Smith and Schlumberger.

TRANSFER RESTRICTIONS AND PROCEDURES. Except as otherwise provided in Section
9.3 or Section 4.21, each of Smith and Schlumberger agrees that it will not and
will cause its respective subsidiaries not to, directly or indirectly, sell,
transfer, pledge, hypothecate or otherwise dispose of all or any part of its
direct or indirect ownership interest in any of the Venture Entities, except to
the other in accordance with the following procedures:

                  (ccc) If either of Smith or Schlumberger (the "Initiating
         Party") wishes to dispose of not less than all of its direct and/or
         indirect ownership interests in each of the Venture Entities (an
         "Ownership Interest"), the Initiating Party shall give written notice
         thereof (the "Transfer Notice") to the other (the "Other Party") by
         certified mail, return receipt requested, and otherwise in accordance
         with the procedures set forth in Section

                                     -42-

<PAGE>   46


         9.5, specifying the cash purchase price (stated in terms of price per
         percentage point of Percentage Interest) at which it is willing to
         effect such disposition.

                  (ddd) Not later than 90 days following receipt of the
         Transfer Notice, the Other Party shall notify the Initiating Party in
         writing (the "Response Notice") of its election to either (i) purchase
         the Initiating Party's entire Ownership Interest at the cash purchase
         price (stated in terms of price per percentage point of Percentage
         Interest) specified in the Transfer Notice or (ii) sell to the
         Initiating Party the Other Party's entire Ownership Interest at the
         cash purchase price equal to the same price per percentage point of
         Percentage Interest as set forth in the Transfer Notice. A failure by
         the Other Party to deliver a Response Notice shall be deemed to be a
         Response Notice to purchase the Initiating Party's entire Ownership
         Interest at the cash purchase price specified in the Transfer Notice,
         given on the 90th day following receipt of the Transfer Notice. The
         Response Notice shall be irrevocable and shall be binding upon the
         Initiating Party and the Other Party.

                  (eee) The closing of the purchase of any Ownership Interest
         in accordance with the Response Notice shall take place within 90 days
         after receipt (or deemed receipt) of such Response Notice. The time
         and date of such closing shall be specified in the Response Notice
         furnished pursuant to Section 4.19(b). If a Response Notice is deemed
         to have been given pursuant to such Section 4.19(b), the closing shall
         take place at 10:00 a.m., Central time, on the 120th day following
         receipt of the Transfer Notice. At the closing, the party that is
         purchasing the Ownership Interest shall pay the purchase price
         therefor by delivering to the party that is selling the Ownership
         Interest cash in immediately available funds to the order of such
         selling party. Concurrently with the delivery of such purchase price,
         the party that is selling the Ownership Interest shall execute or
         cause to be executed such instruments of transfer as shall be
         sufficient to fully vest such Ownership Interest in the other party.
         The closing shall take place at such place as may be unanimously
         agreed upon by Smith and Schlumberger or their respective
         subsidiaries.

                  (fff) Notwithstanding anything to the contrary set forth in
         this Section 4.19, Smith and Schlumberger agree that neither of them,
         nor any of their respective subsidiaries, shall exercise its rights
         under this Section 4.19 until after the fifth anniversary of the
         Closing Date; provided, however, that such limitation shall not apply
         to the application of this Section 4.19 in accordance with the
         provisions of Section 4.21(e).

                                     -43-

<PAGE>   47


SPECIAL OPTION. If at any time Smith, Schlumberger or any of their respective
subsidiaries holding an Ownership Interest experiences a Change of Control
Event, (a) within 30 days following such Change of Control Event, the party that
has experienced such Change of Control Event shall deliver to the other party
written notice of a cash purchase price at which it is prepared to sell its
entire Ownership Interest to the other party, (b) such notice shall, for all
purposes of this Agreement, be deemed to be a Transfer Notice as defined in
Section 4.19 and (c) each of the provisions of Section 4.19 shall apply to such
Transfer Notice; provided that any failure to deliver a Response Notice by the
party that has not experienced such Change of Control Event shall not be
construed as an election to either purchase or sell any Ownership Interest and
the party that has experienced such Change of Control Event shall have no right
to cause any Ownership Interest to be purchased or sold pursuant to this Section
4.20. Any failure to deliver a notice in accordance with clause (a) of the
immediately preceding sentence shall be construed as a Transfer Notice
specifying a cash purchase price equal to the net book value of the applicable
Ownership Interest as of the end of the calendar month preceding the event
giving rise to the obligation to deliver such notice. For purposes hereof,
"Change of Control Event" (a) with respect to either of Smith and Schlumberger
shall mean that any one of the following events has occurred: (i) a change is
proposed by a majority of its stockholders as to the number of members, or
incumbent membership, of its Board of Directors such that the incumbent members
of said Board of Directors immediately prior to such change would no longer
constitute at least two-thirds of the Board of Directors after such change and
such proposal is enacted; (ii) any determination is made by its Board of
Directors that there has been a change in the control of Smith or Schlumberger,
as the case may be, because a "person" (as such term is used in Section 13(d) of
the Exchange Act), together with its affiliates (as such term is defined in Rule
12b-2 of the General Rules and Regulations under the Exchange Act), has become,
at any date hereafter, the beneficial owner (as such term is defined in Rule
13d-3 of the General Rules and Regulations under the Exchange Act), directly or
indirectly, of 20% or more of the voting power of its then-outstanding voting
securities; (iii) any "person" (as defined in clause (ii)) (other than any
employee stock ownership trust or similar entity created by Smith or
Schlumberger, as the case may be, for the benefit of its employees), together
with its affiliates, has become, at any date hereafter, the beneficial owner,
directly or indirectly, of 20% or more of the voting power of its
then-outstanding securities entitled generally to vote for the election of its
directors; or (iv) the approval by its stockholders of the merger or
consolidation of Smith or Schlumberger, as the case may be, with, or the sale of
all or

                                     -44-

<PAGE>   48


substantially all of its assets to, any other "person" (as defined in clause
(ii)), unless the incumbent members of its Board of Directors as constituted
immediately prior to such merger or consolidation or sale shall constitute at
least a majority of the directors of the surviving corporation of such merger
or consolidation or the transferee in such sale, immediately following the
consummation of any such transaction, or any parent (as such term is defined in
Rule 12b-2 of the General Rules and Regulations under the Exchange Act) of such
surviving corporation or transferee, and (b) with respect to any wholly owned
subsidiary of Smith or Schlumberger directly or indirectly holding an Ownership
Interest, a change in ultimate ownership of that entity such that Smith or
Schlumberger no longer holds directly or indirectly an ownership interest of at
least 50.1% of that entity.


RIGHT OF FIRST REFUSAL.

                  (ggg) Procedure. If, at any time after the second anniversary
         of the Closing Date, Smith, Schlumberger or any of their respective
         subsidiaries desires to transfer (a "Disposition") all or any part of
         its Ownership Interest to a third party (other than a transfer allowed
         by Section 9.3 hereof), then that party (the "Disposing Party") shall
         promptly give notice thereof (the "Disposition Notice") to the other
         party (the "Recipient Party"). The Disposition Notice shall set forth
         all relevant information with respect to the proposed Disposition,
         including the name and address of the prospective acquirer, the
         purchase price (and any related information that is required by
         Section 4.21(b)), a description of the Ownership Interest or portion
         thereof that is the subject of the proposed Disposition and any other
         terms and conditions of the proposed Disposition. The Recipient Party
         shall have the preferential right to acquire such Ownership Interest
         for the same purchase price, and on the same terms and conditions, as
         set forth in the Disposition Notice, except as provided otherwise in
         this Section 4.21. The Recipient Party shall have 30 days following
         its receipt of the Disposition Notice in which to notify the Disposing
         Party whether it elects to exercise its preferential right; provided,
         however, that if either party elects to require appraisal pursuant to
         Section 4.21(b), then the applicable deadline for the Recipient Party
         to deliver such notice shall be 15 days following delivery of the
         decision of the Appraiser. A notice in which the Recipient Party
         exercises such right is referred to herein as an "Exercise Notice."

                  (hhh) Non-Cash Consideration. If any portion of the purchase
         price, as disclosed in the Disposition Notice, is to be paid in a form
         other than cash (including through delivery of a promissory note or
         other asset) ("Non-Monetary Consideration"), the Disposition Notice
         shall set forth the Disposing Party's best estimate of the fair market
         value of the Non-Monetary Consideration. If the Recipient Party
         disagrees with such estimate and so notifies the Disposing Party
         within 10 days following delivery of the Disposition Notice, and if
         such disagreement is not resolved within 20 days following delivery of
         the Disposition Notice, either the Disposing Party or the Recipient
         Party, by notice to the other (the "Appraisal Notice"), may require
         the determination of the Fair

                                     -45-

<PAGE>   49


         Market Value of the Non-Monetary Consideration to be made by an
         appraiser, investment banker or other Person (the "Appraiser") having
         expertise in the valuation of assets of the type represented by the
         Non-Monetary Consideration. As used herein, the term "Fair Market
         Value" shall mean the fair market value of such Non-Monetary
         Consideration taking into account all relevant factors, including (i)
         any tax benefits to be derived by the Disposing Party from such
         Non-Monetary Consideration (such as the benefits of effecting a
         tax-free transaction) and (ii) in the case of a promissory note or
         similar Non-Monetary Consideration, the creditworthiness of the
         proposed purchaser (or other maker of the note). The Appraiser shall
         be selected by mutual agreement of the Disposing Party and the
         Recipient Party; provided, however, that if the Disposing Party and
         the Recipient Party are unable to reach such agreement within 20 days
         following delivery of the Appraisal Notice, either such Party may
         petition the United States District Judge for the Southern District of
         Texas (Houston Division) then senior in service to designate the
         Appraiser. If the Appraiser so chosen shall die, resign or otherwise
         fail or become unable to serve, a replacement Appraiser shall be
         chosen in accordance with the provisions of the immediately preceding
         sentence. The decision of the Appraiser shall be final and binding on
         the Disposing Party and the Recipient Party, and the fees and expenses
         of the Appraiser shall be paid equally by the Disposing Party and the
         Recipient Party. Subject to the remaining provisions of this Section
         4.21(b), the Recipient Party shall pay in cash the Fair Market Value
         of the Non-Monetary Consideration, as so determined by agreement or by
         the Appraiser. If the Recipient Party so elects in its Exercise
         Notice, the Recipient Party may pay such portion of the purchase price
         by delivering to the Disposing Party non-monetary consideration (the
         "Alternative Non-Monetary Consideration") that (y) is in a form
         substantially equivalent to the Non-Monetary Consideration and (z) has
         a Fair Market Value equal to the Fair Market Value of the Non-Monetary
         Consideration; provided, however, that, as a condition to the
         Recipient Party's right to pay such portion of the purchase price by
         delivering the Alternative Non-Monetary Consideration, the Recipient
         Party and the Disposing Party shall have first agreed upon the Fair
         Market Value of such Alternative Non-Monetary Consideration, or such
         Fair Market Value shall have been determined by the Appraiser in
         accordance with the provisions of this Section 4.21(b).

                  (iii) Closing. If the preferential right is exercised in
         accordance with Section 4.21(a), the closing of such purchase shall
         occur at the principal place of business in Texas of the Disposing
         Party on the first business day that is 30 days after the expiration
         of the preferential right period (or, if later, the fifth business day
         after the receipt of all applicable regulatory and governmental
         approvals to the purchase), unless the Disposing Party and the
         Recipient Party agree upon a different place or date. At the closing,
         (i) the Disposing Party shall execute and deliver to the Recipient
         Party (x) an assignment of the Ownership Interest described in the
         Disposition Notice, in form and substance reasonably acceptable to the
         Recipient Party, containing a general warranty of title as to such
         Ownership Interest (including that such Ownership Interest is free and
         clear of any Liens), (y) in the case of a Disposition of voting
         securities, the stock certificates representing such voting securities
         with stock powers attached and endorsed in blank, and (z) any other
         instruments reasonably requested by the Recipient Party to give effect
         to

                                     -46-

<PAGE>   50


         the purchase; and (ii) the Recipient Party shall deliver to the
         Disposing Party the purchase price specified in the Disposition Notice
         in immediately available funds, subject to any modifications thereof
         required by Section 4.21(b).

                  (jjj) Waiver of Preferential Right. If the Recipient Party
         does not deliver an Exercise Notice during the applicable period
         specified in Section 4.21(a), it shall be deemed to have waived its
         preferential right, and the Disposing Party shall have the right to
         dispose of the Ownership Interest described in the Disposition Notice
         to the proposed purchaser strictly in accordance with the terms of the
         Disposition Notice for a period of 90 days after the expiration of the
         preferential right period. If, however, the Disposing Party fails so
         to dispose of the Ownership Interest within such 90-day period, the
         proposed Disposition shall again become subject to the preferential
         right set forth in this Section 4.21.

                  (kkk) Relationship to Section 4.19. Subject to the other
         provisions of this Section 4.21, nothing in this Section 4.21 shall
         prevent Smith, Schlumberger or any of their respective subsidiaries
         from exercising its rights under Section 4.19. If (i) a Disposition
         Notice is delivered under this Section 4.21, (ii) the Recipient Party
         does not deliver an Exercise Notice under this Section 4.21 and (iii)
         prior to the Disposition of the applicable interest to the proposed
         purchaser, the Recipient Party delivers a Transfer Notice under
         Section 4.19, then the provisions of this Section 4.21 and Section
         4.19 shall be deemed amended (y) to permit the proposed purchaser, by
         agreement with the Disposing Party, to deliver the Response Notice and
         (z) to require the closing of the Disposition of such Ownership
         Interest, and the closing described in Section 4.19(c), to occur at
         concurrent closings; it being the intent of the parties that the
         purchaser of the Ownership Interest, if the closing of the Disposition
         of the Ownership Interest occurs, shall have the right to cause the
         Disposing Party to exercise the rights under Section 4.19.

NO DISPOSITIONS. The parties agree not to make any Disposition of all or any
part of their respective Ownership Interests to a third party prior to the
second anniversary of the Closing Date.

                                                 REPRESENTATIONS AND WARRANTIES

         Smith (with respect to the statements in Section 5.1), SIAC, MIPC and
Smith Canada (with respect to the statements in Section 5.2), M-I and M-I Canada
(with respect to the statements in Section 5.3) and Schlumberger (with respect
to the statements in Section 5.4) and Schlumberger MI (with respect to the
statements in Section 5.5) each agrees that, to the extent that it is aware of
any facts which could reasonably be expected (a) to breach or make inaccurate
any of the statements set forth in its applicable section and (b) to have a
Material Adverse Effect with respect to such entity and its subsidiaries, taken
as a whole, such entity will disclose these facts in a disclosure letter to be
delivered to the other parties on the Closing Date. Such disclosure letter shall
briefly set forth a description of the applicable facts and shall
cross-reference the applicable section where the breach or inaccurate statement
is made. Each of the

                                     -47-

<PAGE>   51


parties agrees that setting forth any such facts in such disclosure letters is
for informational purposes only and shall not affect the allocation of
liabilities set forth in this Agreement.

SMITH. Smith represents and warrants to Schlumberger, as of the date of this
Agreement and as of the Effective Time, as follows:

                  (lll) Organization and Standing. Smith is a corporation duly
         incorporated, validly existing and in good standing under the laws of
         the State of Delaware and has all requisite corporate power and
         authority to conduct or cause to be conducted its business as
         currently conducted and to enter into and perform its obligations
         under this Agreement. The execution and delivery of this Agreement by
         the undersigned officer on behalf of Smith, and the performance of
         this Agreement by Smith and the consummation by it of the transactions
         contemplated hereby, have been duly authorized by all necessary
         corporate proceedings on its part. This Agreement constitutes the
         legal, valid and binding obligation of Smith enforceable against Smith
         in accordance with its terms except to the extent that (i)
         enforceability may be limited by bankruptcy, insolvency,
         reorganization or other laws relating to or affecting the enforcement
         of creditors' rights generally and (ii) courts may award money damages
         rather than specific enforcement of contractual provisions involving
         matters other than or in addition to the payment of money.

                  (mmm) Consents; Compliance with Other Instruments. The
         execution, delivery and performance by Smith of this Agreement and the
         consummation by it of the transactions contemplated hereby: (i) will
         not violate (with or without the giving of notice or lapse of time or
         both) any provision of law, rule, regulation, order, judgment or
         decree applicable to Smith; (ii) will not require any registration
         with, consent or approval of, or filing or notice to, any U.S. court,
         tribunal, or governmental or regulatory authority under any provision
         of law applicable to Smith except for (A) the requirements of the
         Exchange Act and (B) an Investment Canada Notification filing to be
         made by Smith after Closing and any other similar requirements in
         other foreign jurisdictions; (iii) will not result in the creation of
         a Lien upon any of the properties, assets or business of M-I or any of
         the Venture Entities; (iv) will not violate any provision of the
         amended and restated certificate of incorporation or bylaws of Smith;
         and (v) will not require any consent, approval or notice under, and
         will not conflict with, or result in the breach or termination of any
         provision of, or constitute a default under, or result in the
         acceleration of (or give anyone the right to accelerate) the
         performance of, any obligation of Smith under any indenture, mortgage,
         deed of trust, lease, license, franchise, contract, agreement or other
         instrument material to Smith to which Smith is a party or by which it
         or any of its assets or properties is bound or encumbered. To the
         knowledge of Smith, neither it nor any third party to any indenture,
         mortgage, deed of trust, agreement or other instrument to which Smith
         is a party or by which it is bound or to which it is subject is in
         breach, or upon execution and delivery of this Agreement would be in
         breach, of any of the terms, covenants, conditions or provisions
         thereof, which breach could adversely affect the M-I Acquired Assets.

                                     -48-

<PAGE>   52


                  (nnn) Title to SIAC, MIPC and Smith Canada Stock. Smith owns
         all of the issued and outstanding capital stock of SIAC, MIPC and
         Smith Canada free and clear of any Liens, options, warrants, purchase
         rights, contracts, commitments, claims or demands.

SIAC, MIPC AND SMITH CANADA. SIAC, MIPC and Smith Canada represent and warrant
to Schlumberger, as of the date of this Agreement and as of the Effective Time,
as follows:

                  (ooo) Organization and Standing. Each of SIAC, MIPC and Smith
         Canada is a corporation duly incorporated, validly existing and in
         good standing under the laws of the State of Delaware (with respect to
         SIAC and MIPC) or the Province of Alberta (with respect to Smith
         Canada) and has all requisite corporate power and authority to conduct
         or cause to be conducted its businesses as currently conducted and to
         enter into and perform its obligations under this Agreement and, with
         respect to SIAC and Smith Canada, the applicable Charter Documents of
         the Venture Entities. The execution and delivery of this Agreement by
         the undersigned officers on behalf of SIAC, MIPC and Smith Canada, and
         the performance of this Agreement and, with respect to SIAC and Smith
         Canada, the applicable Charter Documents of the Venture Entities, and
         the consummation by each of them of the transactions contemplated
         hereby and thereby, have been duly authorized by all necessary
         corporate proceedings on their part. This Agreement constitutes, and
         upon SIAC's and Smith Canada's execution and delivery, the applicable
         Charter Documents of the Venture Entities will constitute, the legal,
         valid and binding obligations of each of SIAC, MIPC and Smith Canada,
         as applicable, enforceable against that entity in accordance with
         their terms except to the extent that (i) enforceability may be
         limited by bankruptcy, insolvency, reorganization or other laws
         relating to or affecting the enforcement of creditors' rights
         generally and (ii) courts may award money damages rather than specific
         enforcement of contractual provisions involving matters other than or
         in addition to the payment of money.

                  (ppp) Consents; Compliance with Other Instruments. The
         execution, delivery and performance by each of SIAC, MIPC and Smith
         Canada of this Agreement and, with respect to SIAC and Smith Canada,
         the applicable Charter Documents of the Venture Entities, and the
         consummation by each of them of the transactions contemplated hereby
         and thereby: (i) will not violate (with or without the giving of
         notice or lapse of time, or both) any provision of law, rule,
         regulation, order, judgment or decree applicable to SIAC, MIPC or
         Smith Canada; (ii) will not require any registration with, consent or
         approval of, or filing or notice to, any U.S. court, tribunal or
         governmental or regulatory authority under any provision of law
         applicable to SIAC, MIPC or Smith Canada except for (A) the
         requirements of the Exchange Act and (B) an Investment Canada
         Notification filing to be made by Smith after Closing and any other
         similar requirements in other foreign jurisdictions; (iii) will not
         result in the creation of a Lien upon any of the properties, assets or
         business of SIAC, MIPC, Smith Canada, M-I or any of the Venture
         Entities; (iv) will not violate any provision of the certificate of
         incorporation or bylaws of

                                     -49-

<PAGE>   53


         SIAC, MIPC or Smith Canada; and (v) will not require any consent,
         approval or notice under, and will not conflict with, or result in the
         breach or termination of any provision of, or constitute a default
         under, or result in the acceleration of (or give anyone the right to
         accelerate) the performance of, any obligation of SIAC, MIPC or Smith
         Canada under any indenture, mortgage, deed of trust, lease, license,
         franchise, contract, agreement or other instrument to which SIAC, MIPC
         or Smith Canada is a party or by which any of them or any of their
         assets or properties is bound or encumbered. To the knowledge of SIAC,
         MIPC and Smith Canada, neither it nor any third party to any
         indenture, mortgage, deed of trust, agreement or other instrument to
         which it is a party or by which it is bound or to which it is subject
         is in breach, or upon execution and delivery of this Agreement would
         be in breach, of any of the terms, covenants, conditions or provisions
         thereof, which breach could adversely affect the M-I Acquired Assets.

                  (qqq) Title to M-I and M-I Canada Ownership Interests.
         Immediately prior to the Effective Time, (i) SIAC and MIPC will own
         all of the membership interests in each of the Venture Entities (other
         than M-I Canada), and (ii) Smith Canada and MIPC will own all of the
         capital stock in M-I Canada, in each case, free and clear of any
         Liens, options, warrants, purchase rights, contracts, commitments,
         claims or demands, except as otherwise set forth in the applicable
         Charter Documents of the Venture Entities. As of the date of this
         Agreement, SIAC and MIPC owns all of the membership interests in M-I,
         free and clear of any Liens, options, warrants, purchase rights,
         contracts, commitments, claims or demands. None of SIAC, MIPC or Smith
         Canada is a party to any voting trust, proxy or other agreement or
         understanding with respect to the ownership interests in M-I or any of
         the Venture Entities.


M-I AND M-I CANADA. M-I and M-I Canada represent and warrant to Schlumberger, as
of the date of this Agreement and as of the Effective Time, as follows:

                  (rrr) Organization and Standing. Each of M-I and M-I Canada
         has been duly formed and is validly existing and in good standing
         under the laws of its jurisdiction of formation and has all requisite
         company power and authority to conduct or cause to be conducted its
         business as currently conducted and to enter into and perform its
         obligations under this Agreement. Each subsidiary of M-I and M-I
         Canada is (i) a corporation duly incorporated, validly existing and in
         good standing under the laws of its jurisdiction of incorporation or
         (ii) a limited liability company duly formed, validly existing and in
         good standing under the laws of its jurisdiction of formation. The
         execution and delivery of this Agreement by the undersigned officers
         on behalf of M-I and M-I Canada and the performance of this Agreement
         by M-I and M-I Canada, and the consummation by each of them of the
         transactions contemplated hereby, have been duly authorized by all
         necessary company proceedings on each of their parts. This Agreement
         constitutes the legal, valid and binding obligations of each of M-I
         and M-I Canada enforceable against that entity in accordance with its
         terms except to the extent that (i) enforceability may be limited by
         bankruptcy, insolvency, reorganization or other laws

                                     -50-

<PAGE>   54


         relating to or affecting the enforcement of creditors' rights
         generally and (ii) courts may award money damages rather than specific
         enforcement of contractual provisions involving matters other than or
         in addition to the payment of money.

                  (sss) Consents; Compliance with Other Instruments. The
         execution, delivery and performance by M-I and M-I Canada of this
         Agreement and the consummation by each of them of the transactions
         contemplated hereby: (i) will not violate (with or without the giving
         of notice or lapse of time or both) any provision of law, rule,
         regulation, order, judgment or decree applicable to M-I or M-I Canada;
         (ii) will not require any registration with, consent or approval of,
         or filing or notice to, any U.S. court, tribunal or governmental or
         regulatory authority under any provision of law applicable to M-I or
         M-I Canada except for (A) the requirements of the Exchange Act and (B)
         an Investment Canada Notification filing to be made by Smith after
         Closing and any other similar requirements in other foreign
         jurisdictions; (iii) will not result in the creation of any Lien upon
         any of the properties, assets or business of M-I or M-I Canada; (iv)
         will not violate any provision of the limited liability company
         agreement of M-I or the charter, bylaws or other organizational
         documents of M-I Canada or any of the existing subsidiaries of M-I or
         M-I Canada; and (v) will not require any consent, approval or notice
         under, and will not conflict with, or result in the breach or
         termination of any provision of, or constitute a default under, or
         result in the acceleration of (or give anyone the right to accelerate)
         the performance of, any obligation of M-I, M-I Canada or any of the
         subsidiaries of M-I or M-I Canada under any indenture, mortgage, deed
         of trust, lease, license, franchise, contract, agreement or other
         instrument to which M-I, M-I Canada or any subsidiary of M-I or M-I
         Canada is a party or by which any of these entities or any of their
         respective assets or properties is bound or encumbered. To the
         knowledge of M-I and M-I Canada, none of M-I, M-I Canada, their
         respective subsidiaries or any third-party to any indenture, mortgage,
         deed of trust, agreement or other instrument to which M-I, M-I Canada
         or any of their respective subsidiaries is a party or by which any of
         those entities is bound or to which any of those entities is subject,
         is in breach, or upon execution and delivery of this Agreement would
         be in breach, of any of the terms, covenants, conditions or provisions
         thereof, which breach could adversely affect the M-I Acquired Assets.

                  (ttt) Title to M-I Acquired Assets. M-I, M-I Canada or one of
         their respective subsidiaries has good and indefeasible title to all
         of the real properties included in the M-I Acquired Assets purported
         to be owned in fee, and good and merchantable title to all of the
         other properties (provided that no title warranty is made with respect
         to permits, rights-of-way, easements, mining claims or mining leases)
         to be owned by the Venture Entities immediately prior to the Effective
         Time. Except as to properties upon which no warranties are given,
         immediately after the Effective Time, the Venture Entities (or
         subsidiaries thereof) will hold good and indefeasible or marketable
         title, as the case may be, thereto free and clear of all Liens, other
         than the M-I Assumed Liabilities and any encumbrances identified in
         the Transfer Documents. All of the M-I Acquired Assets are in good
         working order and condition, are maintained in accordance with
         reasonable commercial operating practices and are adequate for the
         purposes for which they currently are being used or held for use,
         ordinary wear and tear excepted.

                                     -51-

<PAGE>   55


                  (uuu) Financial Statements and Information. The M-I Balance
         Sheet sets forth as of December 31, 1998 the net book value of all (i)
         the assets, properties and rights to be included in the M-I Acquired
         Assets as of such date, and (ii) the liabilities and obligations to be
         included in the M-I Assumed Liabilities accrued as of such date, all
         as determined in accordance with GAAP except to the extent that
         certain assets, properties, rights, liabilities and obligations have
         been disposed of or discharged in accordance with the terms of this
         Agreement prior to the Accounting Date.

                  (vvv) Exhibits. The information set forth in the Exhibits to
         this Agreement furnished by M-I and M-I Canada are complete and
         correct in all respects and all information required to be disclosed
         in order to make the Exhibits not misleading has been disclosed.

                  (www) Contracts. Except for contracts, agreements or
         commitments specifically described in Exhibit 2.1-4, none of M-I, M-I
         Canada or any of their respective subsidiaries (insofar as any of the
         following may affect the M-I Drilling Fluids Business, or any officer
         or employee of the M-I Drilling Fluids Business who M-I or M-I Canada
         believes is not intending to resign upon consummation of the
         transactions contemplated hereby) is a party to or bound by any:

                       (i) employment agreement (other than salesmen's
                  commission agreements terminable at will or within one year)
                  or "golden parachute" arrangements within the meaning of
                  Section 280G of the Code;

                       (ii) collective bargaining or union agreement;

                       (iii) bonus, stock option, incentive compensation plan,
                  non-qualified stock purchase plan or other welfare benefit
                  plan or program;

                       (iv) consulting agreement;

                       (v) lease with respect to real property, mining lease
                  (including mining claims), facilities or equipment lease
                  having a remaining term in excess of one year or involving
                  annual lease payments greater than $25,000;

                       (vi) lease with respect to data processing hardware or
                  software;

                       (vii) option, contract or commitment to purchase any
                  fixed assets at a price in excess of $50,000;

                       (viii) distribution or warehousing agreements;

                       (ix) sales representation, consigned stock or
                  sponsorship agreements;

                       (x) ore purchasing, processing or sales agreements or
                  mining contractor agreements;

                                     -52-

<PAGE>   56


                       (xi) agreement with a third party for money borrowed or
                  loaned in excess of $100,000;

                       (xii) bonds, guarantees or letters of credit involving a
                  third party obligating the M-I Drilling Fluids Business in
                  excess of $25,000;

                       (xiii) license agreements, whether a member of the M-I
                  Drilling Fluids Business is a licensor or a licensee;

                       (xiv) master service agreements or blanket purchase
                  orders covering or related to the M-I Drilling Fluids
                  Business;

                       (xv) other purchase orders or vendor commitments having
                  a value in excess of $100,000 or relating to purchases to be
                  fulfilled over a period of more than one year;

                       (xvi) other customer orders or sales contracts for
                  products and services having a value in excess of $100,000 or
                  relating to sales to be fulfilled over a period of more than
                  one year;

                       (xvii) non-competition agreement for the benefit of or
                  obligating a member of the M-I Drilling Fluids Business; or

                       (xviii) contract or commitment, other than the
                  foregoing, having a term of more than one year or a value in
                  excess of $50,000 (including barter or counter-trade
                  arrangements).

         Except as set forth in Exhibit 2.1-4, all such agreements, contracts
and commitments are valid and in full force and effect as to M-I, M-I Canada or
a subsidiary thereof, as the case may be; and M-I, M-I Canada or a subsidiary
thereof, as the case may be, have performed all material obligations required to
be performed by them to date and are not in default in any material respect
thereunder.

                  (xxx) Absence of Certain Changes or Events. Since December
         31, 1998, M-I and M-I Canada (and, to the extent applicable, each of
         their respective subsidiaries) operated their respective businesses in
         the usual, regular and ordinary manner and have not:

                       (i) incurred any obligation or liability (contingent or
                  otherwise), except normal trade or business obligations
                  incurred in the ordinary course of business;

                       (ii) mortgaged, pledged or subjected to any Lien any of
                  their properties or assets (whether tangible or intangible);

                       (iii) sold, assigned, transferred, conveyed, leased or
                  otherwise disposed of or agreed to sell, assign, transfer,
                  convey, lease or otherwise dispose of any of

                                     -53-

<PAGE>   57


                  their assets or properties, except for a fair consideration
                  in the ordinary course of business;

                       (iv) acquired or leased (other than by a renewal of an
                  existing lease in the ordinary course of business) any assets
                  or property otherwise than in the ordinary course of
                  business;

                       (v) waived or released any rights otherwise than in the
                  ordinary course of business;

                       (vi) transferred or granted any proprietary rights under
                  any concessions, leases, licenses, agreements, patents,
                  inventions, trademarks, trade names, brandmarks, brand names
                  or copyrights, or with respect to any know-how;

                       (vii) made any material change or amendment to any
                  contractual obligation or made or granted any general wage or
                  salary increase or entered into any employment contract with
                  any officer or employee that they employ involving an annual
                  base rate of compensation in excess of $100,000 or a period
                  of employment of more than 30 days;

                       (viii) made any material change or amendment to any
                  contractual obligation or entered into any transaction,
                  contract or commitment (other than this Agreement) other than
                  in the ordinary course of business;

                       (ix) made capital expenditures or entered into any
                  commitment therefor that, in the aggregate, exceeds
                  $5,000,000;

                       (x) suffered any adverse change in their operations,
                  revenues, earnings, assets, liabilities, properties, business
                  or condition, financial or otherwise; provided, however, that
                  losses from operations in the ordinary course of business in
                  amounts similar to prior months shall not be considered an
                  adverse change;

                       (xi) lost any supplier or suppliers;

                       (xii) introduced any material change with respect to the
                  operation of the M-I Drilling Fluids Business or permitted
                  the M-I Acquired Assets to be maintained other than in
                  accordance with customary standards; or

                       (xiii) been charged with or advised of any violation of
                  the Foreign Corrupt Practices Act or any relevant
                  Anti-Boycott provision of U.S. law.

                  (yyy) Litigation. There are no actions, suits or proceedings
         pending or, to M-I's or M-I Canada's knowledge, threatened against
         M-I, M-I Canada, any of their respective subsidiaries or the M-I
         Drilling Fluids Business at law or in equity, or before or by any
         federal, state, municipal or other governmental or non-governmental
         department, commission, board, bureau, agency or instrumentality,
         domestic or foreign.

                                     -54-

<PAGE>   58


                  (zzz) Labor Controversies. There are no controversies,
         unresolved labor union grievances, unfair labor practice proceedings
         or labor arbitration proceedings, pending or, to M-I's or M-I Canada's
         knowledge, threatened, between M-I or M-I Canada and any of the
         employees of the M-I Drilling Fluids Business.

                  (aaaa) Patents; Trademarks. To M-I's or M-I Canada's
         knowledge, no patents, inventions, trademarks, trade names,
         brandmarks, brand names, copyrights, registrations, applications,
         trade secrets or confidential or proprietary information are necessary
         for the conduct of the M-I Drilling Fluids Business as now conducted,
         other than those listed in Exhibit 2.1-4. Except as described in
         Exhibit 2.1-4, M-I owns, subject to any outstanding licenses to third
         parties or other agreements shown in Exhibit 2.1-4, all such patents,
         inventions, trademarks, trade names, brandmarks, brand names,
         copyrights, registrations, trade secrets or confidential or
         proprietary information. M-I or M-I Canada is not a licensor in
         respect of any such patents, inventions, trademarks, trade names,
         brandmarks, brand names, copyrights, registrations, applications,
         trade secrets or confidential or proprietary information therefor,
         except as disclosed in Exhibit 2.1-4. No warranty or representation is
         made or implied with respect to the validity of any such patents,
         inventions, marks, copyrights, secrets, information or names or with
         respect to the infringement of M-I or M-I Canada of any unlicensed
         third-party patent; however, neither M-I nor M-I Canada has received
         notice of any infringement of or conflict with the asserted rights of
         others with respect to the use of any such rights. The royalties or
         other remuneration payable by M-I or M-I Canada with respect to its
         uses of patents and similar rights owned by others do not exceed the
         rates shown on Exhibit 2.1-4. M-I or M-I Canada owns or has the right
         and license to use all such rights necessary to carry on the full
         scope of the M-I Drilling Fluids Business, and all such rights and
         licenses are listed on the applicable Exhibits. Except as set forth in
         the foregoing Exhibits, neither M-I nor M-I Canada, in the conduct of
         the businesses of the M-I Drilling Fluids Business, has received
         written notice of any violation, or reasonably believes that it is in
         violation of any patent, patent license, trade name, trademark,
         brandmarks, brand names or copyrights of others. No employee of the
         M-I Drilling Fluids Business owns, directly or indirectly, in whole or
         in part, any patents, inventions, trademarks, trade names, brandmarks,
         brand names, copyrights, registrations, applications, trade secrets or
         confidential or proprietary information therefor or interest therein
         that the M-I Drilling Fluids Business have used, are currently using
         or the use of which is necessary for its business as now conducted.

                  (bbbb) Licenses; Permits; Authorizations. M-I, M-I Canada or
         their respective subsidiaries have all material approvals,
         authorizations, consents, licenses, orders and other permits of all
         governmental agencies, whether federal, state, local or foreign,
         required to permit the operations of the M-I Drilling Fluids Business
         to be conducted substantially as currently conducted.

                  (cccc) Compliance with Applicable Law. To the knowledge of
         M-I, M-I Canada, Smith Canada, SIAC, MIPC and Smith, the conduct of
         the M-I Drilling Fluids Business does not violate or infringe any
         domestic or foreign laws (to the extent that compliance

                                     -55-

<PAGE>   59


         therewith will not cause a violation of U.S. law), statutes,
         ordinances, rules, regulations, codes, orders, licenses, concessions
         or permits relating to any of the property thereof or applicable to
         the operations thereof including labor, zoning, civil rights and
         antitrust laws, and Environmental, Health and Safety Requirements. To
         the knowledge of M-I, M-I Canada, Smith Canada, SIAC, MIPC and Smith,
         the M-I Drilling Fluids Business has obtained, and is in compliance
         with, all permits, licenses and other authorizations that are required
         under federal, state, local and foreign laws relating to pollution or
         protection of the environment, including laws relating to emissions,
         discharges, releases or threatened releases of pollutants, products,
         chemicals, or toxic or hazardous substances or wastes into the
         environment (including ambient air, surface water, groundwater or
         land), or otherwise relating to the manufacture, processing,
         distribution, use, treatment, storage, disposal, transport or handling
         of pollutants or toxic or hazardous substances or wastes; the M-I
         Drilling Fluids Business is in compliance with all terms and
         conditions of the required permits, licenses and authorizations, and
         is also in compliance with all other limitations, restrictions,
         conditions, standards, prohibitions, requirements, obligations,
         schedules and timetables contained in those Environmental, Health and
         Safety Requirements or contained in any regulation, code, plan, order,
         decree, judgment, injunction, notice or demand letter issued, entered,
         promulgated or approved thereunder; neither M-I nor M-I Canada is
         aware of, and neither of them nor any of their respective subsidiaries
         has received notice of, any past, present or future events,
         conditions, circumstances, activities, practices, incidents, actions
         or plans that may interfere with or prevent compliance or continued
         compliance with those Environmental, Health and Safety Requirements or
         any regulation, code, letter issued, entered, promulgated or approved
         thereunder, or that may give rise to any common law or legal
         liability, or otherwise form the basis of any claim, action, demand,
         suit, proceeding, hearing, study or investigation, based on or related
         to the manufacture, processing, distribution, use, treatment, storage,
         disposal, transport or handling, or the emission, discharge, release
         or threatened release into the environment of any pollutant, product,
         chemical, or industrial, toxic or hazardous substance or waste; to the
         best of M-I's and M-I Canada's knowledge there is no friable asbestos
         nor materials containing polychlorinated biphenyls at any of the M-I
         Drilling Fluids Business facilities; and there is no civil, criminal
         or administrative action, suit, demand, claim, hearing, notice or
         demand letter, notice of violation, investigation or proceeding
         pending or threatened against the M-I Drilling Fluids Business
         relating in any way to those Environmental, Health and Safety
         Requirements or any regulation, code, plan, order, decree, judgment,
         injunction, notice or demand letter issued, entered, promulgated or
         approved thereunder.

                  (dddd) Taxes.

                       (i) Each of M-I, M-I Canada and their respective
                  subsidiaries has (A) timely (taking into account any
                  extensions) filed in correct form all federal, state, local
                  and non-U.S. returns, declarations, reports, estimates,
                  information returns and statements ("Returns") required to be
                  filed by or with respect to it in respect of any Taxes, (B)
                  timely paid all Taxes that are due and payable, (C)
                  established reserves which are included in its current
                  balance sheet that are adequate for the

                                     -56-

<PAGE>   60


                  payment of all Taxes not yet due and payable with respect to
                  the results of operations through the date of such current
                  balance sheet, and (D) complied in all respects with all
                  applicable laws, rules and regulations relating to the
                  payment and withholding of Taxes and has in all respects
                  timely withheld from employee wages and paid over.

                       (ii) No Tax audits or other administrative proceedings
                  or court proceedings are pending with regard to any Taxes for
                  which M-I, M-I Canada or any of their respective subsidiaries
                  would be liable or for which an owner of M-I, M-I Canada or
                  any of their respective subsidiaries would be liable as a
                  result of such ownership and no deficiency for any such Taxes
                  has been proposed, asserted or assessed pursuant to any such
                  examination against M-I, M-I Canada or any of their
                  respective subsidiaries or any owner of M-I, M-I Canada or
                  any of their respective subsidiaries by any federal, state,
                  local or non-U.S. taxing authority with respect to any
                  period.

                       (iii) None of M-I, M-I Canada or any of their respective
                  subsidiaries or any owner thereof has entered into (or prior
                  to the close of business on the Closing Date will execute or
                  enter into) with the IRS or any other taxing authority (A)
                  any agreement or other document extending or having the
                  effect of extending the period for assessments or collection
                  of any Taxes for which M-I, M-I Canada or any of their
                  respective subsidiaries would be liable or for which any
                  owner thereof would be liable as a result of such ownership
                  or (B) a closing agreement pursuant to Section 7121 of the
                  Code, or any predecessor provision thereof or any similar
                  provision of state, local or non-U.S. Tax law, that relates
                  to the assets or operations of M-I, M-I Canada or any of
                  their respective subsidiaries.

                       (iv) There are no liens or security interests on any of
                  the assets of M-I, M-I Canada or any of their respective
                  subsidiaries that arose in connection with any failure or
                  alleged failure to pay any Tax other than for taxes which are
                  not yet delinquent.

                       (v) None of M-I, M-I Canada or any of their respective
                  subsidiaries is a party to an agreement that provides for the
                  payment of any amount that would constitute a "parachute
                  payment" within the meaning of Section 280G of the Code.

                       (vi) None of M-I, M-I Canada or any of their respective
                  subsidiaries is a party to, is bound by or has any obligation
                  under any tax sharing agreement, tax indemnity agreement or
                  similar agreement or arrangement.

                       (vii) None of M-I's subsidiaries has been a United
                  States real property holding corporation within the meaning
                  of Section 897(c)(2) of the Code during the applicable period
                  specified in Section 897(c)(1)(A)(ii) of the Code.

                                     -57-

<PAGE>   61


                       (viii) No Stock of United States Corporation. As of
                  immediately prior to the Effective Time, none of the M-I
                  Acquired Assets will consist of the stock of a corporation
                  which is created or organized in the United States or under
                  the laws of any state or of any other entity which is treated
                  as such a corporation for federal tax purposes.

SCHLUMBERGER. Schlumberger represents and warrants to Smith, SIAC, MIPC, Smith
Canada, M-I Canada and M-I, as of the date of this Agreement and as of the
Effective Time, as follows:

                  (eeee) Organization and Standing. Schlumberger is a
         corporation duly incorporated, validly existing and in good standing
         under the laws of the Netherlands Antilles and has all requisite
         corporate power and authority to conduct or cause to be conducted its
         business (including its Drilling Fluids Business outside of the United
         States) as currently conducted and to enter into and perform its
         obligations under this Agreement and the applicable Charter Documents
         of the Venture Entities. Each subsidiary of Schlumberger that is being
         transferred to the Venture Entities as a part of the Schlumberger
         Drilling Fluids Business has been duly organized and is validly
         existing and in good standing under the laws of its jurisdiction of
         organization. The execution, delivery and performance of this
         Agreement and the applicable Charter Documents of the Venture Entities
         by Schlumberger and the consummation by it of the transactions
         contemplated hereby, and thereby, have been duly authorized by all
         necessary corporate proceedings on its part. This Agreement
         constitutes, and upon their execution and delivery, the applicable
         Charter Documents of the Venture Entities will constitute, the legal,
         valid and binding obligations of Schlumberger or its subsidiaries
         enforceable against that entity in accordance with its terms except to
         the extent that (i) enforceability may be limited by bankruptcy,
         insolvency, reorganization or other laws relating to or affecting the
         enforcement of creditors' rights generally and (ii) courts may award
         money damages rather than specific enforcement of contractual
         provisions involving matters other than or in addition to the payment
         of money.

                  (ffff) Consents; Compliance with Other Instruments. The
         execution, delivery and performance by Schlumberger of this Agreement
         and the applicable Charter Documents of the Venture Entities and the
         consummation by it of the transactions contemplated hereby and
         thereby: (i) will not violate (with or without the giving of notice or
         lapse of time or both) any provision of law, rule, regulation, order,
         judgment or decree applicable to Schlumberger; (ii) will not require
         any registration with, consent or approval of, or filing or notice to,
         any U.S. court, tribunal, or governmental or regulatory authority
         under any provision of law applicable to Schlumberger except for (A)
         the requirements of the Exchange Act and (B) an Investment Canada
         Notification filing to be made by Smith after Closing and any other
         similar requirements in other foreign jurisdictions; (iii) will not
         result in the creation of any Lien upon any of the properties, assets
         or business of Schlumberger; (iv) will not violate any provision of
         the deed of incorporation or bylaws of Schlumberger; and (v) will not
         require any consent, approval

                                     -58-

<PAGE>   62


         or notice under, and will not conflict with, or result in the breach
         or termination of any provision of, or constitute a default under, or
         result in the acceleration of (or give anyone the right to accelerate)
         the performance of, any obligation of Schlumberger under any
         indenture, mortgage, deed of trust, lease, license, franchise,
         contract, agreement or other instrument to which Schlumberger is a
         party or by which it or any of its assets or properties is bound or
         encumbered. To the knowledge of Schlumberger, neither it nor any third
         party to any indenture, mortgage, deed of trust, agreement or other
         instrument to which Schlumberger is a party or by which it is bound or
         to which it is subject is in breach, or upon execution and delivery of
         this Agreement would be in breach, of any of the terms, covenants,
         conditions or provisions thereof.

                  (gggg) Title to Schlumberger Assets. Schlumberger or one of
         its subsidiaries has good and indefeasible title to all of the real
         properties included in the Schlumberger Acquired Assets purported to
         be owned in fee, and good and merchantable title to all of its other
         properties (provided that no title warranty is made with respect to
         permits, rights-of-way, easements, mining claims or mining leases) to
         be transferred to the Venture Entities. Except as to properties upon
         which no warranties are given, upon the transfer of the Schlumberger
         Acquired Assets to the Venture Entities (or to one or more
         subsidiaries of the Venture Entities) pursuant to this Agreement, the
         Venture Entities (or such subsidiary) will obtain good and
         indefeasible or marketable title, as the case may be, thereto, free
         and clear of all Liens, other than the Schlumberger Assumed
         Liabilities and any encumbrances identified in the Transfer Documents.
         All of the Schlumberger Acquired Assets are in good working order and
         condition, are maintained in accordance with reasonable commercial
         operating practices and are adequate for the purposes for which they
         currently are being used or held for use, ordinary wear and tear
         excepted.

                  (hhhh) Financial Statements and Information. The net book
         value of all (i) the assets, properties and rights to be included in
         the Schlumberger Acquired Assets is set forth in Exhibit 2.4-1 (as may
         be supplemented as provided herein) as of the dates set forth therein,
         and (ii) the liabilities and obligations included in the Schlumberger
         Assumed Liabilities is set forth in Exhibit 2.4-2 (as may be
         supplemented as provided herein) accrued as of the dates set forth
         therein, except to the extent that certain assets, properties, rights,
         liabilities and obligations may be disposed of or discharged in
         accordance with the terms of this Agreement prior to the Accounting
         Date.

                  (iiii) Exhibits. The information set forth in the Exhibits to
         this Agreement furnished by Schlumberger are complete and correct in
         all respects and all information required to be disclosed in order to
         make the Exhibits not misleading has been disclosed.

                  (jjjj) Contracts. Except for contracts, agreements or
         commitments specifically described in Exhibit 2.4-1, neither
         Schlumberger nor any of its subsidiaries (insofar as any of the
         following may affect the Schlumberger Drilling Fluids Business, or any
         officer or employee of the Schlumberger Drilling Fluids Business who
         Schlumberger believes is not intending to resign upon consummation of
         the transactions contemplated hereby) is a party to or bound by any:

                                     -59-

<PAGE>   63


                       (i) employment agreement (other than salesmen's
                  commission agreements terminable at will or within one year)
                  or "golden parachute" arrangements within the meaning of
                  Section 280G of the Code;

                       (ii) collective bargaining or union agreement;

                       (iii) bonus, stock option, incentive compensation plan,
                  non-qualified stock purchase plan or other welfare benefit
                  plan or program;

                       (iv) consulting agreement;

                       (v) lease with respect to real property, mining lease
                  (including mining claims), facilities or equipment lease
                  having a remaining term in excess of one year or involving
                  annual lease payments greater than $25,000;

                       (vi) lease with respect to data processing hardware or
                  software;

                       (vii) option, contract or commitment to purchase any
                  fixed assets at a price in excess of $50,000;

                       (viii) distribution or warehousing agreements;

                       (ix) sales representation, consigned stock or
                  sponsorship agreements;

                       (x) ore purchasing, processing or sales agreements or
                  mining contractor agreements;

                       (xi) agreement with a third party for money borrowed or
                  loaned in excess of $100,000;

                       (xii) bonds, guarantees or letters of credit involving a
                  third party obligating the Schlumberger Drilling Fluids
                  Business in excess of $25,000;

                       (xiii) license agreements, whether the Schlumberger
                  Drilling Fluids Business is a licensor or a licensee;

                       (xiv) master service agreements or blanket purchase
                  orders covering or related to the Schlumberger Drilling
                  Fluids Business;

                       (xv) other purchase orders or vendor commitments having
                  a value in excess of $100,000 or relating to purchases to be
                  fulfilled over a period of more than one year;

                       (xvi) other customer orders or sales contracts for
                  products and services having a value in excess of $100,000 or
                  relating to sales to be fulfilled over a period of more than
                  one year;

                                     -60-

<PAGE>   64


                       (xvii) non-competition agreement for the benefit of or
                  obligating the Schlumberger Drilling Fluids Business; or

                       (xviii) contract or commitment, other than the
                  foregoing, having a term of more than one year or a value in
                  excess of $50,000 (including barter or counter-trade
                  arrangements).

         Except as set forth in Exhibit 2.4-1, all such agreements, contracts
and commitments are valid and in full force and effect as to Schlumberger or the
Schlumberger Drilling Fluids Business, as the case may be; and Schlumberger and
the Schlumberger Drilling Fluids Business, as the case may be, have performed
all material obligations required to be performed by them to date and are not in
default in any material respect thereunder.

                  (kkkk) Absence of Certain Changes or Events. Since December
         31, 1998, Schlumberger (and to the extent applicable, each of its
         subsidiaries to be transferred hereunder) operated the Schlumberger
         Drilling Fluids Business in the usual, regular and ordinary manner and
         has not:

                       (i) incurred any obligation or liability (contingent or
                  otherwise) relating to the Schlumberger Drilling Fluids
                  Business except normal trade or business obligations incurred
                  in the ordinary course of business;

                       (ii) mortgaged, pledged or subjected to any Lien any of
                  the properties or assets (whether tangible or intangible)
                  relating to the Schlumberger Drilling Fluids Business;

                       (iii) sold, assigned, transferred, conveyed, leased or
                  otherwise disposed of or agreed to sell, assign, transfer,
                  convey, lease or otherwise dispose of any of the assets or
                  properties of the Schlumberger Drilling Fluids Business,
                  except for a fair consideration in the ordinary course of
                  business;

                       (iv) acquired or leased (other than by a renewal of an
                  existing lease in the ordinary course of business) any assets
                  or property relating to the Schlumberger Drilling Fluids
                  Business otherwise than in the ordinary course of business;

                       (v) waived or released any rights relating to the
                  Schlumberger Drilling Fluids Business otherwise than in the
                  ordinary course of business;

                       (vi) transferred or granted any proprietary rights
                  relating to the Schlumberger Drilling Fluids Business under
                  any concessions, leases, licenses, agreements, patents,
                  inventions, trademarks, trade names, brandmarks, brand names
                  or copyrights, or with respect to any know-how;

                       (vii) made any material change or amendment to any
                  contractual obligation or made or granted any general wage or
                  salary increase or entered into

                                     -61-

<PAGE>   65


                  any employment contract with any officer or employee that it
                  employs in the Schlumberger Drilling Fluids Business
                  involving an annual base rate of compensation in excess of
                  $100,000 or a period of employment of more than 30 days;

                       (viii) made any material change or amendment to any
                  contractual obligation or entered into any transaction,
                  contract or commitment (other than this Agreement) relating
                  to the Schlumberger Drilling Fluids Business, other than in
                  the ordinary course of business;

                       (ix) made capital expenditures relating to the
                  Schlumberger Drilling Fluids Business or entered into any
                  commitment therefor that, in the aggregate, exceed
                  $5,000,000;

                       (x) suffered any adverse change in the operations,
                  revenues, earnings, assets, liabilities, properties, business
                  or condition, financial or otherwise, of the Schlumberger
                  Drilling Fluids Business; provided, however, that losses from
                  operations in the ordinary course of business of the
                  Schlumberger Drilling Fluids Business in amounts similar to
                  prior months shall not be considered an adverse change;

                       (xi) lost any supplier or suppliers;

                       (xii) introduced any material change with respect to the
                  operation of the Schlumberger Drilling Fluids Business or
                  permitted the Schlumberger Acquired Assets to be maintained
                  other than in accordance with customary standards; or

                       (xiii) been charged with or advised of any violation of
                  the Foreign Corrupt Practices Act or any relevant
                  Anti-Boycott provision of U.S. law.

                  (llll) Litigation. There are no actions, suits or proceedings
         pending or, to Schlumberger's knowledge, threatened against the
         Schlumberger Drilling Fluids Business at law or in equity, or before
         or by any federal, state, municipal or other governmental or
         nongovernmental department, commission, board, bureau, agency or
         instrumentality, domestic or foreign.

                  (mmmm) Labor Controversies. There are no controversies,
         unresolved labor union grievances, unfair labor practice proceedings
         or labor arbitration proceedings, pending or, to Schlumberger's
         knowledge, threatened, between Schlumberger and any of the employees
         of the Schlumberger Drilling Fluids Business.

                  (nnnn) Patents; Trademarks. To Schlumberger's knowledge, no
         patents, inventions, trademarks, trade names, brandmarks, brand names,
         copyrights, registrations, applications, trade secrets or confidential
         or proprietary information are necessary for the conduct of the
         Schlumberger Drilling Fluids Business as now conducted, other than
         those listed in Exhibit 2.4-1. Except as described in Exhibit 2.4-1,
         Schlumberger owns, subject

                                     -62-

<PAGE>   66


         to any outstanding licenses to third parties or other agreements shown
         on Exhibit 2.4-1, all such patents, inventions, trademarks, trade
         names, brandmarks, brand names, copyrights, registrations, trade
         secrets or confidential or proprietary information. Schlumberger is
         not a licensor in respect of any such patents, inventions, trademarks,
         trade names, brandmarks, brand names, copyrights, registrations,
         applications, trade secrets or confidential or proprietary information
         therefor except as disclosed in Exhibit 2.4-1. No warranty or
         representation is made or implied with respect to the validity of any
         such patents, inventions, marks, copyrights, secret information, or
         names or with respect to the infringement of Schlumberger of any
         unlicensed third party patent; however, Schlumberger has not received
         notice of any infringement of or conflict with the asserted rights of
         others with respect to the use of any such rights. The royalties or
         other remuneration payable by Schlumberger with respect to its uses of
         patents and similar rights owned by others do not exceed the rates
         shown on Exhibit 2.4-1. Schlumberger owns or has the right and license
         to use all such rights necessary to carry on the full scope of the
         Schlumberger Drilling Fluids Business, and all such rights and
         licenses are listed on the applicable Exhibits. Except as set forth in
         the foregoing Exhibits, Schlumberger, in the conduct of the businesses
         of the Schlumberger Drilling Fluids Business, has not received written
         notice of any violation, and does not reasonably believe that it is in
         violation of any patent, patent license, trade name, trademark,
         brandmarks, brand names or copyrights of others. No employee of the
         Schlumberger Drilling Fluids Business owns, directly or indirectly, in
         whole or in part, any patents, inventions, trademarks, trade names,
         brandmarks, brand names, copyrights, registrations, or applications,
         trade secrets or confidential or proprietary information therefor or
         interest therein that the Schlumberger Drilling Fluids Business have
         used, are currently using or the use of which is necessary for its
         business as now conducted.

                  (oooo) Licenses; Permits; Authorizations. Schlumberger has
         all approvals, authorizations, consents, licenses, orders and other
         permits of all governmental agencies, whether federal, state, local or
         foreign, required to permit the operations of the Schlumberger
         Drilling Fluids Business to be conducted.

                  (pppp) Compliance with Applicable Law. To the knowledge of
         Schlumberger, the conduct of the Schlumberger Drilling Fluids Business
         does not violate or infringe any domestic or foreign laws (to the
         extent that compliance therewith will not cause a violation of U.S.
         law), statutes, ordinances, rules, regulations, codes, orders,
         licenses, concessions or permits relating to any of the property
         thereof or applicable to the operations thereof including labor,
         zoning, civil rights and antitrust laws, and Environmental, Health and
         Safety Requirements. To the knowledge of Schlumberger, the
         Schlumberger Drilling Fluids Business has obtained, and is in
         compliance with, all permits, licenses and other authorizations that
         are required under federal, state, local and foreign laws relating to
         pollution or protection of the environment, including laws relating to
         emissions, discharges, releases or threatened releases of pollutants,
         products, chemicals, or toxic or hazardous substances or wastes into
         the environment (including ambient air, surface water, groundwater, or
         land), or otherwise relating to the manufacture, processing,
         distribution, use, treatment, storage, disposal, transport, or

                                     -63-

<PAGE>   67


         handling of pollutants or toxic or hazardous substances or wastes; the
         Schlumberger Drilling Fluids Business is in compliance with all terms
         and conditions of the required permits, licenses and authorizations,
         and is also in compliance with all other limitations, restrictions,
         conditions, standards, prohibitions, requirements, obligations,
         schedules and timetables contained in those Environmental, Health and
         Safety Requirements or contained in any regulation, code, plan, order,
         decree, judgment, injunction, notice or demand letter issued, entered,
         promulgated or approved thereunder; Schlumberger is not aware of, nor
         has it or any of its subsidiaries received notice of, any past,
         present or future events, conditions, circumstances, activities,
         practices, incidents, actions or plans that may interfere with or
         prevent compliance or continued compliance with those Environmental,
         Health and Safety Requirements or any regulation, code, letter issued,
         entered, promulgated or approved thereunder, or that may give rise to
         any common law or legal liability, or otherwise form the basis of any
         claim, action, demand, suit, proceeding, hearing, study or
         investigation, based on or related to the manufacture, processing,
         distribution, use, treatment, storage, disposal, transport or
         handling, or the emission, discharge, release or threatened release
         into the environment of any pollutant, product, chemical, or
         industrial, toxic or hazardous substance or waste; to the best of
         Schlumberger's knowledge, there is no friable asbestos nor materials
         containing polychlorinated biphenyls at any of the facilities of the
         Schlumberger Drilling Fluids Business; and there is no civil, criminal
         or administrative action, suit, demand, claim, hearing, notice or
         demand letter, notice of violation, investigation, or proceeding
         pending or threatened against the Schlumberger Drilling Fluids
         Business relating in any way to those Environmental, Health and Safety
         Requirements or any regulation, code, plan, order, decree, judgment,
         injunction, notice or demand letter issued, entered, promulgated or
         approved thereunder.

                  (qqqq) Title to Schlumberger MI. Schlumberger indirectly owns
         all of the issued and outstanding capital stock of Schlumberger MI
         free and clear of any Liens, options, warrants, purchase rights,
         contracts, commitments, claims or demands.

                  (rrrr) No Stock of United States Corporation. As of
         immediately prior to the Effective Time, none of the Schlumberger
         Acquired Assets will consist of the stock of a corporation which is
         created or organized in the United States or under the laws of any
         state or of any other entity which is treated as such a corporation
         for federal tax purposes.


SCHLUMBERGER MI. Schlumberger MI represents and warrants to Smith, SIAC, MIPC,
Smith Canada, M-I Canada and M-I, as of the date of this Agreement and as of the
Effective Time, as follows:

                  (ssss) Organization and Standing. Schlumberger MI is a
         corporation duly incorporated, validly existing and in good standing
         under the laws of the State of Delaware and has all requisite
         corporate power and authority to conduct or cause to be conducted its
         businesses as currently conducted and to enter into and perform its
         obligations under this Agreement and the Charter Documents of USNewco.
         The

                                     -64-

<PAGE>   68


         execution and delivery of this Agreement by the undersigned officers
         on behalf of Schlumberger MI, and the performance of this Agreement,
         the Charter Documents of USNewco, and the consummation of the
         transactions contemplated hereby and thereby, have been duly
         authorized by all necessary corporate proceedings on Schlumberger MI's
         part. This Agreement constitutes, and upon Schlumberger MI's execution
         and delivery, the Charter Documents of USNewco will constitute, the
         legal, valid and binding obligations of Schlumberger MI, enforceable
         against Schlumberger MI in accordance with their terms except to the
         extent that (i) enforceability may be limited by bankruptcy,
         insolvency, reorganization or other laws relating to or affecting the
         enforcement of creditors' rights generally and (ii) courts may award
         money damages rather than specific enforcement of contractual
         provisions involving matters other than or in addition to the payment
         of money.

                  (tttt) Consents; Compliance with Other Instruments. The
         execution, delivery and performance by Schlumberger MI of this
         Agreement and the Charter Documents of USNewco, and the consummation
         by Schlumberger MI of the transactions contemplated hereby and
         thereby: (i) will not violate (with or without the giving of notice or
         lapse of time or both) any provision of law, rule, regulation, order,
         judgment or decree applicable to Schlumberger MI; (ii) will not
         require any registration with, consent or approval of, or filing or
         notice to, any U.S. court, tribunal, or governmental or regulatory
         authority under any provision of law applicable to Schlumberger MI
         except for (A) the requirements of the Exchange Act and (B) an
         Investment Canada Notification filing to be made by Smith after
         Closing and any other similar requirements in other foreign
         jurisdictions; (iii) will not result in the creation of a Lien upon
         any of the properties, assets or business of Schlumberger MI or any of
         the Venture Entities; (iv) will not violate any provision of the
         certificate of incorporation or bylaws of Schlumberger MI; and (v)
         will not require any consent, approval or notice under, and will not
         conflict with, or result in the breach or termination of any provision
         of, or constitute a default under, or result in the acceleration of
         (or give anyone the right to accelerate) the performance of, any
         obligation of Schlumberger MI under any indenture, mortgage, deed of
         trust, lease, license, franchise, contract, agreement or other
         instrument to which Schlumberger MI is a party or by which
         Schlumberger MI or any of its assets or properties is bound or
         encumbered. To the knowledge of Schlumberger MI, neither it nor any
         third party to any indenture, mortgage, deed of trust, agreement or
         other instrument to which it is a party or by which it is bound or to
         which it is subject is in breach, or upon execution and delivery of
         this Agreement would be in breach, of any of the terms, covenants,
         conditions or provisions thereof, which breach could adversely affect
         the Schlumberger Acquired Assets.

                  (uuuu) No Stock of United States Corporation. As of
         immediately prior to the Effective Time, none of the Schlumberger
         Acquired Assets will consist of the stock of a corporation which is
         created or organized in the United States or under the laws of any
         state or of any other entity which is treated as such a corporation
         for federal tax purposes.

                                     -65-

<PAGE>   69


                                                LIABILITIES AND INDEMNIFICATION.

         Smith, SIAC, MIPC, M-I and Schlumberger agree as follows:

VENTURE ENTITY INDEMNIFICATION. Except as provided in Sections 6.2 and 6.3, each
Venture Entity shall, and Smith and Schlumberger hereby agree to cause each
Venture Entity to, indemnify, defend and hold harmless each of Smith, SIAC,
MIPC, Smith Canada and M-I Canada on the one hand, and Schlumberger and its
subsidiaries, on the other, against and in respect of any Damages with respect
to any actions, suits, proceedings, demands, assessments, claims and judgments
arising out of any breach or default in performance by the Venture Entities of
any of the obligations that are to be performed or assumed by them under this
Agreement or pursuant to their Charter Documents and any and all claims for
injury (including death), property or other damage, direct, indirect or
consequential, resulting from or connected with (a) occurrences or exposure
after the Accounting Date in regard to products or services, (b) any failure by
a Venture Entity to duly pay, perform or discharge the Schlumberger Assumed
Liabilities or the M-I Assumed Liabilities or (c) any other aspect of the
Venture Entities' ownership, use or operation of their respective assets and
businesses. Smith or Schlumberger, as the case may be, shall give written notice
to the applicable Venture Entity within 30 days of discovery by either of them
of any matters that may give rise to a claim for indemnification from a Venture
Entity under this Agreement, and Smith and Schlumberger shall cooperate with
that Venture Entity in any investigation by that Venture Entity of such matters.
This indemnification is in addition to the other indemnifications provided for
in this Agreement or the Charter Documents of the Venture Entities.

SMITH INDEMNIFICATION.

                  (vvvv) Smith shall be liable for, and hereby agrees to
         indemnify and hold each Venture Entity and Schlumberger, as the case
         may be, harmless against, any Damages with respect to any actions,
         suits, proceedings, demands, assessments, claims and judgments arising
         out of:

                       (i) any breach of or inaccuracy in any of the
                  representations or warranties made in this Agreement by
                  Smith, SIAC, MIPC, Smith Canada, M-I Canada, or M-I as of the
                  date of this Agreement or as of the Effective Time;

                       (ii) any breach or default in performance of any of the
                  obligations that are to be performed by Smith, SIAC, MIPC,
                  Smith Canada, M-I Canada or M-I

                                     -66-

<PAGE>   70


                  under this Agreement or by any Venture Entity under this
                  Agreement prior to the Effective Time;

                       (iii) any claims against a Venture Entity, as the
                  successor to the M-I Acquired Assets, relating to any period
                  prior to the Accounting Date, the liability or obligation for
                  which is not expressly assumed by that Venture Entity
                  pursuant to this Agreement;

                       (iv) any liability in excess of the amount, if any,
                  accrued at the Accounting Date on the Closing Statement of
                  M-I;

                       (v) failure to collect the full amount of any of the
                  accounts receivable set forth in Exhibit 6.2(a)(v) to the
                  disclosure letter of Smith by the date set forth on such
                  Exhibit;

                       (vi) or relating to any of the actions, suits or
                  proceedings described in Exhibit 6.2(a)(vi) to the disclosure
                  letter of Smith in excess of any accruals therefor on the
                  Closing Statement of M-I; or

                       (vii) any of the matters disclosed in Exhibit
                  6.2(a)(vii) to the disclosure letter of Smith.

                  (wwww) In addition to those items specifically identified in
         a disclosure letter to be provided on the Closing Date, which items
         Smith shall be liable for, Smith hereby agrees to indemnify and hold
         each of the Venture Entities, M-I, Schlumberger and each of their
         respective subsidiaries, as the case may be, harmless against, any
         Damages with respect to any obligations, violations, actions, suits,
         proceedings, demands, assessments, cleanups, claims and judgments
         relating thereto. Smith shall also be liable for, and hereby agrees to
         indemnify and hold each Venture Entity and Schlumberger and each of
         their respective subsidiaries, as the case may be, harmless against,
         any Damages with respect to any obligations, violations, actions,
         suits, proceedings, demands, assessments, cleanups, claims and
         judgments, pursuant to or in connection with the application of any
         Environmental, Health and Safety Requirements (excluding those
         relating solely to health and safety, such as OSHA and any other U.S.
         or non-U.S., national, federal, state or local laws, ordinances,
         rules, regulations or publications relating to health and safety, the
         indemnification obligation for which is described in and limited by
         Section 6.2(a)(i)) or to the condition of M-I or any Venture Entity in
         case of acts or omissions occurring at, or relating back to, any time
         prior to the Accounting Date, specifically including acts or omissions
         with respect to the on-site or off-site handling or disposal of any
         products, chemicals, wastes and waste waters, or threatened damage to
         the environment (including without limitation, ambient air, surface
         water, groundwater, land surface or subsurface strata) at any on-site
         or off-site location, occurring or alleged to have been caused, in
         whole or in part, by the transportation, treatment, storage, or
         disposal of any pollutant or toxic or hazardous substance or waste
         handled, generated or produced in connection with the business of M-I
         or any Venture Entity (collectively referred to as the "M-I/Venture
         Entity Environmental Liabilities"). This indemnification

                                     -67-

<PAGE>   71


         obligation shall apply irrespective of whether the Environmental
         Liabilities subject to this provision are known or unknown as of the
         Accounting Date.

                  (xxxx) Schlumberger or the applicable Venture Entity, as the
         case may be, shall give written notice to Smith within 60 days of
         discovery by any of them of any matters that may give rise to a claim
         for indemnification from Smith under this Agreement, and Schlumberger,
         M-I and the Venture Entities shall cooperate with Smith in any
         investigation by Smith of such matters.

                  (yyyy) This indemnification is in addition to the other
         indemnifications provided for in this Agreement or the Charter
         Documents of the Venture Entities.

SCHLUMBERGER INDEMNIFICATION.

                  (zzzz) Schlumberger shall be liable for, and hereby agrees to
         indemnify and hold each Venture Entity and Smith, SIAC, MIPC, M-I
         Canada, Smith Canada, as the case may be, harmless against, any
         Damages with respect to any actions, suits, proceedings, demands,
         assessments, claim and judgments arising out of:

                       (i) any breach of or inaccuracy in any of the
                  representations or warranties made by Schlumberger or
                  Schlumberger MI in this Agreement as of the date of this
                  Agreement or as of the Effective Time;

                       (ii) any breach or default in performance by
                  Schlumberger of any of the obligations that are to be
                  performed by Schlumberger under this Agreement;

                       (iii) any claims against a Venture Entity, as the
                  successor to the Schlumberger Drilling Fluids Business,
                  relating to any period prior to the Accounting Date, the
                  liability or obligation for which is not expressly assumed by
                  that Venture Entity pursuant to this Agreement;

                       (iv) with respect to any subsidiary or affiliate of
                  Schlumberger, the stock or other equity interest of which is
                  to be transferred to a Venture Entity, which subsidiaries and
                  affiliates are specified on the Exhibits to Section 2.4 (the
                  "Schlumberger Transferred Subsidiaries"), any liability in
                  excess of the amount, if any, accrued at the Accounting Date
                  balance sheet of such Schlumberger Transferred Subsidiary
                  utilized in the preparation of the Closing Statements;
                  provided, however, that the foregoing indemnification shall
                  not apply to any liability for Warranty and Warranty Service;
                  or

                       (v) any of the matters disclosed in Exhibit 6.3(a)(v) of
                  the disclosure letter of Schlumberger.

                  (aaaaa) In addition to those items specifically identified in
         a disclosure letter to be provided on the Closing Date, which items
         Schlumberger shall be liable for, Schlumberger hereby agrees to
         indemnify and hold each of the Venture Entities and

                                     -68-

<PAGE>   72


         Smith, and each of their respective subsidiaries, as the case may be,
         harmless against, any Damages with respect to any obligations,
         violations, actions, suits, proceedings, demands, assessments,
         cleanups, claims and judgments relating thereto. Schlumberger shall
         also be liable for, and hereby agrees to indemnify and hold each
         Venture Entity and Smith, and each of their respective subsidiaries,
         as the case may be, harmless against, any Damages with respect to any
         obligations, violations, actions, suits, proceedings, demands,
         assessments, cleanups, claims and judgments, pursuant to or in
         connection with the application of any Environmental, Health and
         Safety Requirements (excluding those relating solely to health and
         safety, such as OSHA and any other U.S. or non-U.S., national,
         federal, state or local laws, ordinances, rules, regulations or
         publications relating to health and safety, the indemnification
         obligation for which is described in and limited by Section 6.3(a)(i))
         or to the condition of the Schlumberger Drilling Fluids Business in
         case of acts or omissions occurring at, or relating back to, any time
         prior to the Accounting Date, specifically including acts or omissions
         with respect to the on-site or off-site handling or disposal of any
         products, chemicals, wastes and waste waters, or threatened damage to
         the environment (including ambient air, surface water, groundwater,
         land surface or subsurface strata) at any on-site or off-site
         location, occurring or alleged to have been caused, in whole or in
         part, by the transportation, treatment, storage, or disposal of any
         pollutant or toxic, or hazardous substance or waste handled, generated
         or produced in connection with the business of the Schlumberger
         Drilling Fluids Business (collectively referred to as the
         "Schlumberger Environmental Liabilities"). This indemnification
         obligation shall apply irrespective of whether the Environmental
         Liabilities subject to this provision are known or unknown as of the
         Accounting Date.

                  (bbbbb) Smith or the applicable Venture Entity, as the case
         may be, shall give written notice to Schlumberger within 60 days of
         discovery by any of them of any matters that may give rise to a claim
         for indemnification from Schlumberger under this Agreement, and Smith,
         M-I and the applicable Venture Entity shall cooperate with
         Schlumberger in any investigation by Schlumberger of such matters.

                  (ccccc) This indemnification is in addition to the other
         indemnifications provided for in this Agreement or the Charter
         Documents of the Venture Entities.

PRODUCT LIABILITIES.

                  (ddddd) Schlumberger shall remain liable (so far as Smith,
         SIAC, MIPC, Smith Canada, M-I and the Venture Entities are concerned)
         for any Damages that arise out of or are based upon strict liability,
         negligence, or any express or implied representation, or agreement
         made by Schlumberger or a Schlumberger affiliated entity or claimed to
         have been made by Schlumberger or a Schlumberger affiliated entity or
         imposed or asserted to be imposed by operation of law, in connection
         with any occurrence or exposure prior to the Accounting Date relating
         to a Schlumberger product (the foregoing being referred to herein as a
         "Schlumberger Product Liability Claim"), and Schlumberger shall
         indemnify and hold harmless Smith, SIAC, MIPC, Smith Canada, M-I

                                     -69-

<PAGE>   73


         and each of the Venture Entities from and against any Damages
         resulting from any Schlumberger Product Liability Claim.

                  (eeeee) Smith shall remain liable (so far as Schlumberger,
         M-I and the Venture Entities are concerned) for any Damages that arise
         out of or are based upon strict liability, negligence, or any express
         or implied representation, or agreement made by Smith or a Smith
         affiliated entity, or claimed to have been made by Smith or a Smith
         affiliated entity or imposed or asserted to be imposed by operation of
         law, in connection with any occurrence or exposure prior to the
         Accounting Date relating to a M-I or Venture Entity product (the
         foregoing being referred to herein as a "M-I/Venture Entity Product
         Liability Claim"), and Smith shall indemnify and hold harmless the
         other parties and each of the Venture Entities from and against any
         Damages resulting from any M-I/Venture Entity Product Liability Claim.

PARTNER CROSS-INDEMNITIES.

                  (fffff) Except as provided in the Charter Documents of the
         Venture Entities, or as otherwise expressly provided herein, Smith
         shall and hereby agrees to indemnify and hold harmless Schlumberger
         and its subsidiaries from and against any and all Damages arising out
         of an action, suit, proceeding, demand, assessment, claim, judgment,
         or other liability or obligation of any Venture Entity to the extent
         that the Damages suffered by Schlumberger and its subsidiaries are in
         excess of Schlumberger's Percentage Interest.

                  (ggggg) Except as provided in the Charter Documents of the
         Venture Entities, or as otherwise expressly provided herein,
         Schlumberger shall and hereby agrees to indemnify and hold harmless
         Smith and its subsidiaries from and against any and all Damages
         arising out of an action, suit, proceeding, demand, assessment, claim,
         judgment, or other liability or obligation of any Venture Entity to
         the extent that the Damages suffered by Smith and its subsidiaries are
         in excess of Smith's Percentage Interest.

SETTLEMENT OF INDEMNITIES.

                  (hhhhh) Except for the obligations of the parties hereto
         under Sections 6.2(a)(v), 6.2(a)(vi), 6.2(a)(vii), 6.3(a)(v), 6.2(b),
         6.3(b), 6.4 and 6.5, the obligation of each of Smith and Schlumberger
         to indemnify the other, and the Venture Entities hereunder shall not
         become effective unless and until the Damages covered hereby and due
         to that other party aggregate $5,000,000, in which event such
         obligations shall only apply to amounts in excess of that initial
         $5,000,000; provided, however, that Damages incurred that do not
         exceed $5,000, whether incurred as a result of a single incident or a
         series of related incidents, shall not be included in the calculation
         of Damages for purposes of determining whether an indemnification
         obligation exists. The limitation contained in this Section 6.6 shall
         be applicable to health and safety matters which are subject to the
         indemnification obligations and limitations set forth in Sections
         6.2(a)(i) and 6.3(a)(i). In addition, the limitation contained in this
         Section 6.6 shall not be

                                     -70-

<PAGE>   74


         applicable to the payment obligations contained in Section 3.10 or any
         assumption of the Assumed Liabilities.

                  (iiiii) If any party or any Venture Entity (the "Indemnified
         Party") discovers any fact upon which the Indemnified Party intends to
         base a claim for indemnification hereunder, the Indemnified Party
         shall give written notice of the claim to the party (or the Venture
         Entity) from which indemnification is sought (the "Indemnifying
         Party") and if the claim is not resolved to the Indemnified Party's
         satisfaction, the Indemnified Party may commence a claim in accordance
         with the dispute resolution procedures set forth in Section 9.9.

                  (jjjjj) If any claim or assertion of liability is made or
         asserted by a third party against the Indemnified Party based on any
         liability or assertion of a right that, if established, would
         constitute a breach of any of the representations, warranties,
         covenants or agreements of any other party or any Venture Entity, in
         respect of which indemnification has been provided for hereunder, the
         Indemnified Party shall, with reasonable promptness, but in no case
         more than 60 days, give to the Indemnifying Party written notice of
         such claim or assertion of liability and request the Indemnifying
         Party to defend same. Failure to so notify the Indemnifying Party
         shall not relieve the Indemnifying Party of any liability which the
         Indemnifying Party might have to the Indemnified Party, except to the
         extent that such failure materially prejudices the Indemnifying
         Party's position. The Indemnifying Party shall have the right to
         defend against such liability or assertion, in which event the
         Indemnifying Party shall give written notice to the Indemnified Party
         of acceptance of the defense of such claim and the identity of counsel
         selected by the Indemnifying Party. Except as set forth below, such
         notice to the Indemnified Party shall give the Indemnifying Party full
         authority to defend, adjust, compromise or settle, without expense to
         the Indemnified Party, such action, suit, proceeding or demand of
         which such notice shall have been given in the name of the Indemnified
         Party or otherwise as the Indemnifying Party shall elect. The
         Indemnifying Party shall consult with the Indemnified Party prior to
         any such compromise or settlement, and the Indemnified Party shall
         have the right to refuse such compromise or settlement and, at its
         cost, to take over such defense; provided, however, in such event, the
         Indemnifying Party shall not be responsible for, nor shall it be
         obligated to indemnify the Indemnified Party against, any cost and
         liability in excess of such compromise or settlement. With respect to
         any defense accepted by the Indemnifying Party, the Indemnified Party
         shall be entitled to participate with the Indemnifying Party in such
         defense and also shall be entitled to employ separate counsel for such
         defense at its expense. In the event the Indemnifying Party does not
         accept the defense of any indemnified claim as provided above, the
         Indemnified Party shall have the right to employ counsel for such
         defense at the expense of the Indemnifying Party, and to, in good
         faith with due regard to the interests of the Indemnifying Party,
         control all decisions regarding the handling of the defense without
         the consent of the Indemnifying Party, but shall not have the right to
         compromise or settle any such action or consent to the entry of any
         judgment with respect to such action without the consent of the
         Indemnifying Party, which consent shall not be unreasonably withheld,
         unless such settlement, compromise or

                                     -71-

<PAGE>   75


         consent includes an unconditional release of the Indemnifying Party
         from all liability and obligations arising out of such action. Each of
         Smith, SIAC, MIPC, Smith Canada, M-I and Schlumberger agrees to
         cooperate, and agrees to cause each Venture Entity to cooperate, with
         Smith, Schlumberger, SIAC, MIPC, Smith Canada, M-I or a Venture
         Entity, as the case may be, in the defense of any actions brought by
         third parties and the relevant records of each party shall be
         available to the other parties with respect to any such defense. None
         of Smith, Schlumberger, SIAC, MIPC, Smith Canada, M-I or any Venture
         Entity will provide assistance to the party asserting the claim unless
         such assistance is required by law.

                  (kkkkk) Each of the parties and each Venture Entity shall
         have a duty to take reasonable steps to mitigate its damages to the
         fullest extent possible, including diligently pursuing any possible
         (i) insurance coverage that the parties or a Venture Entity may have
         relating to the cause or effect of the damages and (ii)
         indemnification, counterclaim or other action against third parties
         under any contract or other obligation relating to the cause or effect
         of the damages, including the indemnification or other obligations of
         Halliburton under that certain Organization Agreement between
         Halliburton and Dresser dated December 1, 1986, that certain
         Partnership Agreement between Halliburton and Dresser dated December
         1, 1986, as amended, that certain Owners Agreement among Halliburton,
         MIHC, Inc., Smith, SIAC and the predecessor limited partnership to M-I
         dated February 28, 1994, that certain limited liability company
         agreement of M-I dated March 10, 1994, as amended, and that certain
         Purchase and Sale Agreement dated August 20, 1998 among Halliburton,
         MIHC, Inc., Smith, SIAC, MIPC and M-I. To the extent total damages are
         reduced due to the receipt of an offsetting payment from a third party
         under an indemnification obligation, a counterclaim against that third
         party or otherwise, the parties shall share that payment pro rata
         based on their Percentage Interests. For example, if damages of
         $100,000 are incurred that would otherwise be the liability of Smith
         ($60,000) and Schlumberger ($40,000) and Smith receives the entire
         $100,000 from Halliburton based on a previous indemnity, Smith would
         be obligated to apply $40,000 of that payment to Schlumberger's
         portion of the damages.

                                     -72-

<PAGE>   76


LIMITATION ON LIABILITY. No party or Venture Entity shall be required to
indemnify or pay damages to any other party or Venture Entity in connection with
this Agreement arising from indirect, consequential, special, exemplary or
punitive damages except for indirect, consequential, special, exemplary or
punitive damages actually paid to any third party by the Indemnified Party
seeking indemnification hereunder.

                                                CONDITIONS PRECEDENT TO CLOSING

CONDITIONS TO EACH PARTY'S CLOSING OBLIGATION.  Intentionally omitted.

CONDITIONS TO THE CLOSING OBLIGATION OF SCHLUMBERGER.  Intentionally omitted.

CONDITIONS TO THE CLOSING OBLIGATION OF SMITH.  Intentionally omitted.

                               TERMINATION, AMENDMENT, WAIVER AND MODIFICATION.

TERMINATION.  Intentionally omitted.

EFFECT OF TERMINATION.  Intentionally omitted.

AMENDMENT. This Agreement may not be amended except by an instrument in writing
signed by or on behalf of Smith, Schlumberger and each of the other parties
affected thereby other than STC.

                                     -73-

<PAGE>   77


EXTENSION/WAIVER. At any time, a party solely with respect to itself, may: (a)
with respect to obligations owed to it or the performance of other acts for its
benefit, extend the time for the performance of such obligations or such other
acts to be performed hereunder by another party; (b) waive any inaccuracies in
the representations and warranties of another party contained herein or in any
document delivered pursuant hereto; and (c) waive compliance with any of the
conditions to the obligations of a party contained herein. Any agreement on the
part of a party to any such extension or waiver shall be valid only if set forth
in an instrument in writing signed on behalf of such party. No such waiver shall
be operative as a waiver of any other or subsequent requirement of this
Agreement.

                                                            GENERAL PROVISIONS.

SURVIVAL OF REPRESENTATIONS AND WARRANTIES AND CERTAIN INDEMNIFICATION
OBLIGATIONS.

                  (lllll) Each of the representations and warranties contained
         in this Agreement or in any instrument delivered pursuant to this
         Agreement shall survive the Closing Date for a period of three years
         following the Effective Time; provided, however, that the foregoing
         three-year survival period shall not apply to or serve to limit (i)
         warranties of title, which shall extend according to their terms; (ii)
         claims of which a party has given another party against which it is
         seeking reimbursement for such claims specific written notice within
         said three-year period; (iii) any claim resulting from the assessment
         of taxes for any period prior to or including the Accounting Date, the
         indemnification for which shall extend for the period of the statute
         of limitations applicable to such tax claims; or (iv) any claims for
         Schlumberger Environmental Liabilities or M-I/Venture Entity
         Environmental Liabilities including those based upon the application
         or alleged violation of any Environmental, Health and Safety
         Requirements (excluding those related solely to health and safety,
         such as OSHA and any other U.S. or non-U.S., national, federal, state
         or local laws, ordinances, rules, regulations or publications relating
         to health and safety, which claims shall expire at the end of the
         three-year period described above), the generation, transportation,
         handling, storage, or disposal of any hazardous, toxic or harmful
         material, product, chemical, substance or waste, or violation of any
         local, state, or federal, national, U.S. or non-U.S. law, statute, or
         ordinance relating to the generation, transportation, handling,
         storage, or disposal of said materials or substances, and based upon
         any activities, action, or inaction of a party either on or off
         property owned, leased or occupied by such party and occurring prior
         to the Accounting Date, which shall extend for the period of ten years
         following the Accounting Date; provided, however, that bona fide, good
         faith claims of which a party has given specific written notice within
         such ten-year period seeking (x) reimbursement or indemnification for
         such claims or (y) action to clean up, remediate any specific items
         identified in writing in the notice or otherwise respond to issues
         raised by any applicable regulatory agency or third party (other than
         a

                                     -74-

<PAGE>   78


         party hereto or employees of a party hereto) relating to matters
         described in this clause (iv), shall survive until such claim is
         settled or such clean up, remediation or other matters of concern are
         concluded to the mutual reasonable satisfaction of the affected
         parties.

                  (mmmmm) The indemnification obligations described in Section
         6.2(b) and Section 6.3(b) shall survive for a period of ten years;
         provided, however, that claims of which a party has given a bona fide,
         good faith, specific written notice within such ten-year period
         seeking (i) reimbursement or indemnification for such claims or (ii)
         action to clean up, remediate any specific items identified in writing
         in the notice or otherwise respond to issues raised by any applicable
         regulatory agency or third party (other than a party hereto or
         employees of a party hereto) relating to matters described in Section
         6.2(b) or Section 6.3(b), as applicable, shall survive until such
         claim is settled or such clean up, remediation or other matters of
         concern are concluded to the mutual reasonable satisfaction of the
         affected parties.

                                     -75-

<PAGE>   79


GOVERNING LAW. This Agreement shall be governed by and construed in accordance
with the laws of the State of Texas applicable to contracts made and to be
performed therein.

ASSIGNMENT. This Agreement and all of the provisions hereof shall be binding
upon and inure to the benefit of the parties and their respective successors and
assigns, and it is not intended to confer upon any other Person any rights or
remedies hereunder, except that each of the Venture Entities shall be considered
to be a third-party beneficiary of the provisions of this Agreement set forth in
Articles 4 and 5 and Section 9.6. Neither this Agreement nor any of the rights,
interests or obligations hereunder may be assigned, by any of the parties
without the prior written consent of the other parties, except that Smith, SIAC,
Smith Canada or Schlumberger may at any time assign any or all of its rights or
obligations hereunder to one of its wholly owned subsidiaries (but no such
assignment shall relieve Smith, SIAC, Smith Canada or Schlumberger, as the case
may be, of any of its obligations under this Agreement).

COUNTERPARTS. This Agreement may be executed in one or more counterparts each
of which shall be deemed to be an original and all of which together shall be
deemed to be one and the same instrument.

NOTICES. All notices, requests, demands and other communications made in
connection with this Agreement shall be in writing and shall be deemed to have
been duly given on the date delivered, if delivered personally, by reputable
overnight delivery service that requires a signature on delivery or sent by
facsimile machine with telephonic confirmation of receipt to the Persons
identified below, or three days after mailing in the U.S. Mail if mailed by
certified or registered mail, postage prepaid, return receipt requested,
addressed as follows:

                  (nnnnn) if to Smith:

                        Smith International, Inc.
                        16740 Hardy Street
                        Houston, Texas 77032
                        Facsimile: 281.233.5996
                        Attn.: General Counsel

                                     -76-

<PAGE>   80


                  (ooooo) if to SIAC:

                        Smith International Acquisition Corp.
                        16740 Hardy Street
                        Houston, Texas 77032
                        Facsimile: 281.233.5996
                        Attn.: General Counsel

                  (ppppp) if to MIPC:

                        M-I Purchase Corporation
                        16740 Hardy Street
                        Houston, Texas 77032
                        Facsimile: 281.233.5996
                        Attn.: General Counsel

                  (qqqqq) if to M-I:

                        M-I L.L.C.
                        1201 Louisiana, 9th Floor
                        Houston, Texas 77002
                        Facsimile: 713.308.9503
                        Attn.: General Counsel

                  (rrrrr) if to Smith Canada:

                        Smith International Canada Ltd.
                        Lancaster Building
                        800, 304 - 8th Avenue S.W.
                        Calgary, Alberta
                        T2P 1C2 Canada
                        Facsimile: 403.265.9877
                        Attn: General Counsel

                  (sssss) if to M-I Canada:

                        M-I Drilling Fluids Canada, Inc.
                        Lancaster Building
                        800, 304 - 8th Avenue S.W.
                        Calgary, Alberta
                        T2P 1C2 Canada
                        Facsimile: 403.290.5323
                        Attn: General Counsel

                  (ttttt) if to Schlumberger:

                        Schlumberger Limited
                        c/o Schlumberger Oilfield Services
                        900 Threadneedle, Suite 800
                        Houston, Texas 77079
                        Facsimile: 281.285.8522
                        Attn.: General Counsel

                                     -77-

<PAGE>   81


         Such addresses may be changed, from time to time, by means of a notice
given in the manner provided in this Section 9.5. When the Venture Entities are
formed, M-I shall give the other parties notice of each Venture Entity's address
for notice purposes. Likewise, when the subsidiaries of Schlumberger described
in Exhibit 2.3 are formed, Schlumberger shall give similar notice.


COMPETITION AND CONFIDENTIALITY.

                  (uuuuu) Each party agrees that so long as it or its affiliate
         continues to be a member in any of the Venture Entities and for a
         period of one year thereafter, it will not directly or indirectly
         engage or invest in any business in the Drilling Fluids Business in
         direct competition with the business of any of the Venture Entities as
         conducted immediately following the Closing. It is understood and
         agreed that (i) a party shall not be deemed to be in default with
         respect to the foregoing covenants as a result of any investment it
         may make in not more than five percent of the outstanding shares or
         other units of any security of any entity subject to the requirements
         of Section 13 or 15(d) of the Exchange Act, (ii) the provisions of
         this Section 9.6(a) shall not apply to any business activities of any
         party, or any of their respective subsidiaries, actually being
         conducted as of the date hereof, other than the Schlumberger Drilling
         Fluids Business and the M-I Drilling Fluids Business, (iii) this
         Section 9.6(a) shall not be construed to prohibit a party, directly or
         through any subsidiary, from hereafter acquiring and continuing to own
         and operate any entity that has operations in the Drilling Fluids
         Business that compete with the business of any of the Venture Entities
         as conducted immediately following the Closing if none of the
         principal operations of such entity so compete, (iv) the provisions of
         this Section 9.6(a) shall not be construed to prohibit any party,
         directly or through any subsidiary, from selling inventory or other
         assets currently owned by a subsidiary or affiliate, and (v) the
         provisions of this Section 9.6(a) shall not apply for a period of six
         months after the Closing Date to the ownership and operation by
         Schlumberger of its Drilling Fluids Business in the United States
         while that business is winding down. For purposes of this Section
         9.6(a), "principal operation" shall mean an operation or line of
         business of an entity that contributes more than fifteen percent of
         such entity's revenues. In the event that either party acquires an
         entity that has operations competing directly with any of the Venture
         Entities, the parties agree to, and to cause the Venture Entities to,
         attempt to negotiate mutually agreeable terms upon which such
         operations could be transferred to a Venture Entity.

                  (vvvvv) In the event that the covenants contained in Section
         9.6(a) are more restrictive than permitted by law, the parties agree
         that the covenants contained in Section 9.6(a) shall be enforceable
         and enforced to the extent permitted by law.

                  (wwwww) No party shall disclose or use to compete with any
         other party any confidential information obtained from such other
         party pursuant to this Agreement or any document delivered in
         connection herewith or with the transactions contemplated hereby,
         except as such use or disclosure may be required in the course of
         performance

                                     -78-

<PAGE>   82


         hereof and such disclosure as may be required by law. After the
         Closing, the parties hereto shall not (except at the request of any of
         the Venture Entities) use or disclose to any third party any of the
         technical, financial, operational or marketing information of any of
         the Venture Entities, the Schlumberger Drilling Fluids Business or the
         M-I Drilling Fluids Business except after and to the extent such
         information is or becomes generally available to the public through no
         fault of the parties or as may be necessary in connection with the
         remaining or future business(es) of the parties (subject to the
         provisions of Section 9.6(a)) or as may be required by law. The
         parties shall take all reasonable efforts to cause their respective
         directors, officers, employees and agents to observe the provisions of
         this Section 9.6.

                  (xxxxx) Each party acknowledges and agrees that the remedy at
         law for any breach of the requirements of this Section 9.6 would be
         inadequate, and agrees and consents that, without intending to limit
         any additional remedies that may be available, temporary and permanent
         injunctive and other equitable relief may be granted without proof of
         actual damage or inadequacy of legal remedy in any proceeding that may
         be brought to enforce any of the provisions of this Section 9.6.

                                     -79-

<PAGE>   83


LITIGATION AND CLAIM SUPPORT. If so requested by a party, whether in connection
with the matters set forth in Article 6 or otherwise, each of the Venture
Entities shall cooperate, and shall cause their respective employees to
cooperate, with such party and its affiliates and their counsel in defending or
prosecuting any litigation or claim brought by such party against any third
party or by any third party against such party and relating to the business or
properties of any of the Venture Entities. Cooperation shall include causing the
employees of the Venture Entities to furnish documents, testify as witnesses,
appear for depositions and take other similar actions as a party or affiliate
thereof may reasonably request.

ENFORCEMENT. Each of the parties agrees that it shall take no action to prevent
any of the Venture Entities from seeking to enforce any of the obligations of
any of the other parties, as the case may be, under this Agreement or to obtain
damages as a result of any breach thereof. Each of the parties agrees that it
shall not withhold its consent, and shall cause its representatives on the board
of directors, management committee or other governing body of any of the Venture
Entities, not to withhold their consent, to any of the Venture Entities taking
any such action against it.

MEDIATION-ARBITRATION. If a dispute arises from or relates to this Agreement or
the breach thereof and if the dispute cannot be settled through direct
discussions, the parties agree to endeavor first to settle the dispute in an
amicable manner by mediation administered by the American Arbitration
Association under its Commercial Mediation Rules before resorting to
arbitration. Thereafter, any unresolved controversy or claim arising from or
relating to this Agreement or breach thereof shall be settled by arbitration
administered by the American Arbitration Association in accordance with its
Commercial Arbitration Rules and judgment on the award rendered by the
arbitrator(s) may be entered in any court having jurisdiction thereof.
Notwithstanding any other provision of this Agreement or this Section 9.9 to the
contrary, no party shall be precluded from seeking injunctive relief or a
temporary restraining order prior to implementing procedures for mediation or
arbitration hereunder provided that such party determines in the good further
exercise of its best judgment that it will suffer irreparable harm or injury by
any delay caused by mediation or arbitration proceedings.

                                     -80-

<PAGE>   84


ENTIRE AGREEMENT. This Agreement, together with each of the Exhibits and
disclosure letters hereto, constitutes the entire agreement among the parties
hereto with respect to the matters covered hereby and thereby and supersedes all
prior agreements and understandings among the parties.

CONSENTS AND APPROVAL. In the case of any consent or approval required or
contemplated hereby, no party hereto shall unreasonably withhold consent or
approval.

OBLIGATIONS OF SCHLUMBERGER. Whenever this Agreement requires Schlumberger to
take any action, such requirement shall be deemed to be a requirement of the
applicable subsidiary or subsidiaries of Schlumberger listed in Section 2.3
which hold the interests in the Venture Entity or Venture Entities in the
country in which the action is required to be taken and a guarantee of such
performance by Schlumberger.

                                     -81-

<PAGE>   85


         IN WITNESS WHEREOF, the undersigned have duly executed and delivered
this Agreement as of the date first above written.


                                       SMITH INTERNATIONAL, INC.



                                       By: /s/ Neal S. Sutton
                                           -------------------------------------
                                           Neal S. Sutton
                                           Senior Vice President-Administration


                                       SMITH INTERNATIONAL ACQUISITION CORP.



                                       By: /s/ Neal S. Sutton
                                           -------------------------------------
                                           Neal S. Sutton
                                           Vice President


                                       M-I PURCHASE CORPORATION



                                       By: /s/ Neal S. Sutton
                                           -------------------------------------
                                           Neal S. Sutton
                                           Vice President


                                       M-I L.L.C.



                                       By: /s/ Loren K. Carroll
                                           -------------------------------------
                                           Loren K. Carroll
                                           President and Chief Executive Officer


                                       SMITH INTERNATIONAL CANADA LTD.



                                       By: /s/ Vivian Cline
                                           -------------------------------------
                                           Vivian Cline
                                           Assistant Secretary



<PAGE>   86


                                       M-I DRILLING FLUIDS CANADA, INC.



                                       By: /s/ Richard E. Chandler, Jr.
                                           -------------------------------------
                                           Richard E. Chandler, Jr.
                                           Vice President


                                       SCHLUMBERGER LIMITED



                                       By: /s/ Chad Deaton
                                           -------------------------------------
                                           Chad Deaton
                                           Executive Vice President


                                       SCHLUMBERGER TECHNOLOGY CORPORATION



                                       By: /s/ Chad Deaton
                                           -------------------------------------
                                           Chad Deaton
                                           Director


                                       SCHLUMBERGER MI, INC.



                                       By: /s/ John Yearwood
                                           -------------------------------------
                                           John Yearwood
                                           President

<PAGE>   1


                                                                   EXHIBIT 99.1



PRESS RELEASE

===============================================================================
SMITH INTERNATIONAL, INC.
P.O. BOX 60068
HOUSTON, TX 77205-0068
WEBSITE ADDRESS:  smith.com

FOR RELEASE

WEDNESDAY, JULY 14, 1999

CONTACTS:     SIMONE CROOK                       MARGARET K. DORMAN
              SCHLUMBERGER LIMITED               SMITH INTERNATIONAL, INC.
              DIRECTOR INVESTOR RELATIONS        SR. VICE PRESIDENT AND
                 AND COMMUNICATIONS                CHIEF FINANCIAL OFFICER
              (212) 350-9432                     (281) 443-3370


          SCHLUMBERGER AND SMITH INTERNATIONAL ANNOUNCE COMPLETION OF
                         DRILLING FLUIDS JOINT VENTURE

         HOUSTON, Texas (July 14, 1999)... Schlumberger Limited (NYSE: SLB) and
Smith International, Inc. (NYSE, PSX: SII) today announced the completion of a
restructured transaction related to the combination of their drilling fluids
operations under a joint venture agreement. The joint venture will form the
world's largest drilling and completions fluids business.

         The transaction that Smith and Schlumberger announced today has been
restructured to exclude the assets and operations of the U.S. drilling fluids
business of Schlumberger. Smith has not sought modification of the Consent
Decree entered in U.S. v. Baroid Corporation in the belief that the
restructured transaction is not impacted by that Decree.

         Under the terms of the transaction, Smith contributed its M-I L.L.C.
operations, including M-I SWACO, and Schlumberger contributed its non-U.S.
Dowell drilling fluids business. In addition, Schlumberger paid cash
consideration of $280 million to Smith. Smith and Schlumberger own a respective
60 percent and 40 percent interest in the combined operations, which will
continue to operate under the name of M-I L.L.C.



<PAGE>   2


         Schlumberger Vice Chairman Victor Grijalva commented, "This joint
venture enhances the participation of Schlumberger in the Integrated Fluids
Engineering process which improves drilling efficiency and maximizes reservoir
performance while lowering total well costs. It further broadens our integrated
solutions offering and benefits both companies."

         M-I L.L.C. President and CEO, Loren Carroll stated, "We're pleased to
complete the joint venture and are excited about the opportunities a
partnership with Schlumberger creates. This will serve to strengthen our
product offering and technical capabilities in all aspects of fluids
management, enabling M-I to provide operators with unparalleled products and
services."

         Schlumberger is a worldwide leader in technical services with 60,000
employees and operations in over 100 countries. In 1998, revenue was $11.82
billion.

         Smith International, Inc. is a leading worldwide supplier of premium
products and services to the oil and gas exploration and production industry
through its five principal business units - M-I Fluids, M-I SWACO, Smith Bits,
Smith Drilling & Completions and Wilson.

<PAGE>   1
                                                                    EXHIBIT 99.2

PRESS RELEASE

================================================================================
SMITH INTERNATIONAL, INC.
P.O. BOX 60068
HOUSTON, TX 77205-0068
WEBSITE ADDRESS:  smith.com

FOR RELEASE

WEDNESDAY, JULY 28, 1999

CONTACT:     NEAL SUTTON
             SMITH INTERNATIONAL, INC.
             SR. VICE PRESIDENT AND
               GENERAL COUNSEL
             (281) 443-3370

            SMITH APPALLED AND OFFENDED BY DEPARTMENT OF JUSTICE
                              PETITION TO COURT

         HOUSTON, Texas (July 28, 1999)... Smith International, Inc. (NYSE,
PSX: SII) today announced today that it is appalled and offended by the
Department of Justice's petition to the U.S. District Court in Washington, D.C.
to find Smith in criminal and civil contempt for violating a 1994 Consent
Decree and Final Judgment of the Court.

         "The Department of Justice's Petition in highly misleading," stated
Doug Rock, Chairman and CEO of Smith International.  "We worked closely with
the Department of Justice for more than 10 long months on this issue.  We
ultimately restructured the transaction after Schlumberger had to close its
U.S. drilling fluids operations.  As a result, the joint venture has no effect
whatsoever on U.S. competition and is clearly not covered by the 1994 Consent
Decree.  For the Department of Justice to invoke the contempt process in these
circumstances is simply irresponsible."

         Most disturbing, the government's Petition completely fails to
acknowledge that the parties' restructured transaction specifically excludes
the purchase or combination of any of Schlumberger's U.S. drilling fluids
assets by Smith.  The government's Petition does not even disclose the
existence of the current Joint Venture Agreement between
<PAGE>   2
Smith and Schlumberger and refers only to a prior agreement that the government
knows has been modified.  Nor does the Petition disclose that the parties and
the government were in continuous negotiations regarding the transaction for
more than 10 months.  "Our antitrust counsel, Collier, Shannon, Rill & Scott,
has advised us that they are confident, once the court has fully heard this
matter, it will find that there has been no contempt of court," stated Doug
Rock.  "We look forward to our day in court."

    Smith International, Inc. is a leading worldwide supplier of premium
products and services to the oil and gas exploration and production industry
through its five principal business units - M-I Fluids, M-I SWACO, Smith Bits,
Smith Drilling & Completions and Wilson.







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