WEATHERFORD INTERNATIONAL INC /NEW/
8-K, 1999-09-07
OIL & GAS FIELD MACHINERY & EQUIPMENT
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================================================================================


                                  UNITED STATES
                       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


        DATE OF REPORT (Date of earliest event reported):  AUGUST 31, 1999



                         WEATHERFORD INTERNATIONAL, INC.
               (Exact name of registrant as specified in charter)



        DELAWARE                    1-13086                 04-2515019
(State of Incorporation)     (Commission File No.)       (I.R.S. Employer
                                                        Identification No.)



      515 POST OAK BLVD., SUITE 600
             HOUSTON, TEXAS                                   77027
(Address of Principal Executive Offices)                    (Zip Code)


       REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE: (713) 693-4000


================================================================================


                                     Page 1
                        Exhibit Index Appears on Page 5
<PAGE>   2




ITEM 2.        ACQUISITION OR DISPOSITION OF ASSETS.

DAILEY ACQUISITION

         On August 31, 1999, we completed the acquisition of Dailey
International Inc. pursuant to a pre-negotiated plan of reorganization in
bankruptcy that was approved by the United States Bankruptcy Court for the
District of Delaware on August 19, 1999. The total consideration paid for Dailey
was approximately $195 million, of which $185 million was allocated to former
holders of Dailey's senior notes (of which we held approximately $64.7 million
principal amount) and $10 million was allocated to former holders of Dailey's
common stock. The form of consideration was approximately 5,493,925 shares of
our common stock, of which approximately 281,740 shares are issuable to former
holders of Dailey's common stock, approximately 3,985,900 shares are issuable to
former holders of Dailey's senior notes and 1,226,285 shares were retained by us
as treasury shares. The consideration that we paid for Dailey was determined by
negotiations between the parties. We currently expect to continue operating the
businesses of Dailey and to begin integrating those business with our Completion
and Oilfield Services division.

         A copy of our press release announcing the closing of the acquisition
of Dailey is filed as Exhibit 99.1 and is incorporated herein by reference.


ITEM 5.        OTHER EVENTS.

PETROLINE ACQUISITION

          On September 2, 1999, we completed the acquisition of Petroline
Wellsystems Limited for (pound)104 million (approximately US$165 million), of
which (pound)20 million was paid in cash and (pound)84 million in shares of our
common stock. Petroline is based in Aberdeen, Scotland and is a provider of
premium completion products and services to the international oil and gas
industry. We granted to the shareholders of Petroline certain registration and
other rights regarding the shares of our common stock received by them.

         A copy of our press release announcing the closing of the acquisition
of Petroline is filed as Exhibit 99.2 and is incorporated herein by reference.


ITEM 7.        FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND
               EXHIBITS

         (a) Financial Statements of Business Acquired.

         The financial statements of Dailey for the periods specified in Rule
3-05(b) of Regulation S-X were filed as Exhibits 99.2 and 99.3 to our Current
Report on Form 8-K dated May 21, 1999, and Exhibit 99.1 to our Current Report on
Form 8-K dated August 16, 1999, and are filed with this report as Exhibits 99.3,
99.4 and 99.5 and incorporated herein by reference.



                                     PAGE 2

<PAGE>   3


         (b) Pro Forma Financial Information.

         The pro forma financial information required by Article 11 of
Regulation S-X for our Dailey acquisition is incorporated herein by reference
from pages 2-7 of our Current Report on Form 8-K dated May 21, 1999, and pages
2-6 of our Current Report on Form 8-K dated August 16, 1999, and is filed with
this report as Exhibits 99.6 and 99.7.

         (c) Exhibits

       2.1      Acquisition Agreement dated as of May 21, 1999, entered into by
                and among Weatherford International, Inc., Dailey International
                Inc. and certain subsidiaries of Dailey named therein
                (incorporated by reference to Exhibit 2.1 to our Quarterly
                Report on Form 10-Q for the period ended June 30, 1999).

       10.1     Share Sale Agreement dated September 2, 1999, between the
                shareholders of Petroline Wellsystems Limited and Weatherford
                Eurasia Limited and Weatherford International, Inc.(including
                Registration Rights Undertaking attached as Annex A).

       23.1     Consent of Ernst & Young LLP with respect to the financial
                statements of Dailey International Inc.

       99.1     Press release dated August 31, 1999, announcing the closing of
                the acquisition of Dailey International Inc.

       99.2     Press Release dated September 2, 1999, announcing the closing of
                the acquisition of Petroline Wellsystems Limited.

       99.3     Consolidated Financial Statements of Dailey International Inc.
                as of December 31, 1998 and 1997 and for the year December 31,
                1998, the eight month period ended December 31, 1997 and for
                each of two years in the period ended April 30, 1997
                (incorporated by reference to Exhibit 99.2 to our Current Report
                on Form 8-K dated May 21, 1999).

       99.4     Consolidated Financial Statements of Dailey International Inc.
                for the quarterly period ended March 31, 1999 (incorporated by
                reference to Exhibit 99.3 to our Current Report on Form 8-K
                dated May 21, 1999).

       99.5     Consolidated Financial Statements of Dailey International Inc.
                for the quarterly period ended June 30, 1999 (incorporated by
                reference to Exhibit 99.1 to our Current Report on Form 8-K
                dated August 16, 1999).

       99.6     Pro forma financial information from pages 2-7 of our Current
                Report on Form 8-K dated May 21, 1999.

       99.7     Pro forma financial information from pages 2-6 of our Current
                Report on Form 8-K dated August 16, 1999.


                                     PAGE 3

<PAGE>   4


                                   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.


                                       WEATHERFORD INTERNATIONAL, INC.



Dated: September 7, 1999               By:  /s/ Bruce F. Longaker, Jr.
                                          -------------------------------------
                                          Bruce F. Longaker, Jr.
                                          Senior Vice President
                                          and Chief Financial Officer


                                     PAGE 4

<PAGE>   5


                                INDEX TO EXHIBITS

<TABLE>
<CAPTION>

EXHIBIT
NUMBER                   DESCRIPTION
- -------                  -----------
<S>            <C>
    2.1        Acquisition Agreement dated as of May 21, 1999, entered into by
               and among Weatherford International, Inc., Dailey International
               Inc. and certain subsidiaries of Dailey named therein
               (incorporated by reference to Exhibit 2.1 to our Quarterly Report
               on Form 10-Q for the period ended June 30, 1999).

   10.1        Share Sale Agreement dated September 2, 1999, between the
               shareholders of Petroline Wellsystems Limited and Weatherford
               Eurasia Limited and Weatherford International, Inc. (including
               Registration Rights Undertaking attached as Annex A)

   23.1        Consent of Ernst & Young LLP with respect to the financial
               statements of Dailey International Inc.

   99.1        Press release dated May 21, 1999, announcing the acquisition of
               Dailey International Inc.

   99.2        Press Release dated September 2, 1999, announcing the closing of
               the acquisition of Petroline Wellsystems Limited.

   99.3        Consolidated Financial Statements of Dailey International Inc. as
               of December 31, 1998 and 1997 and for the year December 31, 1998,
               the eight month period ended December 31, 1997 and for each of
               two years in the period ended April 30, 1997 (incorporated by
               reference to Exhibit 99.2 to our Current Report on Form 8-K dated
               May 21, 1999).

   99.4        Consolidated Financial Statements of Dailey International Inc.
               for the quarterly period ended March 31, 1999 (incorporated by
               reference to Exhibit 99.3 to our Current Report on Form 8-K dated
               May 21, 1999).

   99.5        Consolidated Financial Statements of Dailey International Inc.
               for the quarterly period ended June 30, 1999 (incorporated by
               reference to Exhibit 99.1 to our Current Report on Form 8-K dated
               August 16, 1999).

   99.6        Pro forma financial information from pages 2-7 of our Current
               Report on Form 8-K dated May 21, 1999.

   99.7        Pro forma financial information from pages 2-6 of our Current
               Report on Form 8-K dated August 16, 1999.
</TABLE>


                                     PAGE 5


<PAGE>   1

                                                                    EXHIBIT 10.1



                                             SHARE SALE AGREEMENT

                                             BETWEEN

                                             THE PERSONS WHOSE NAMES AND
                                             ADDRESSES ARE SET OUT IN PART 1A OF
                                             THE SCHEDULE ("THE VENDORS")

                                             AND

                                             WEATHERFORD EURASIA LIMITED, (REG
                                             NO. 2440463) HAVING ITS REGISTERED
                                             OFFICE AT 16/17 SOUTH QUAY, GREAT
                                             YARMOUTH, NORFOLK NR30 2RA ("THE
                                             PURCHASER") AND

                                             WEATHERFORD INTERNATIONAL, INC.
                                             INCORPORATED IN THE STATE OF
                                             DELAWARE, UNITED STATES OF AMERICA
                                             ("WEATHERFORD")


WHEREAS:-

(A)      Petroline Wellsystems Limited ("the Company") is incorporated in
         Scotland (No. 72733) as a private company limited by shares. The
         Vendors are the registered holders and (except for the Trustees who
         hold their holding of the Sale Shares on trust for the beneficiary or
         beneficiaries of the Trust) beneficial owners of the whole of the
         issued share capital of the Company.

(B)      The Purchaser wishes to purchase and the Vendors wish to sell the whole
         of the issued share capital of the Company on the terms and subject to
         the conditions set out in this Agreement.

(C)      Weatherford has agreed to cause the Purchaser to comply with the terms
         of this Agreement and to be jointly and severally responsible for
         Purchaser's obligations hereunder.


NOW IT IS HEREBY AGREED as follows:-

1.       DEFINITIONS AND INTERPRETATION

1.1      In this Agreement, unless the context shall otherwise require, the
         following expressions shall have the following meanings:-

         "the Accounts"                      means the audited consolidated
                                             balance sheet of the Company as at
                                             the Accounts Date and the audited
                                             consolidated profit and loss
                                             account of the Company for the year
                                             ended on the Accounts Date together
                                             with the directors' and auditor's
                                             reports and other documents annexed
                                             thereto;

         "the Accounts Date"                 means 30 November 1998;

         "Affiliate"                         means, with respect to any person
                                             or entity, any other person or
                                             entity that (i) directly or
                                             indirectly controls the first
                                             person or entity, (ii) is directly
                                             or indirectly controlled by the
                                             first person or entity or

<PAGE>   2


                                             (iii) is under direct or indirect
                                             common control of the first person
                                             or entity.

         "in the Agreed Form"                in relation to any document, means
                                             in the terms agreed between the
                                             parties and for the purpose of
                                             identification signed by the
                                             Purchaser's Solicitors and the
                                             Vendors' Solicitors;

         "Aquatronic"                        Aquatronic Limited, a company
                                             incorporated in Scotland (No.
                                             180106) details of which are set
                                             out in Section A of Part 2 of the
                                             Schedule;

         "Ascari "                           means Ascari Cars Limited details
                                             of which are given in Part 2 (2) of
                                             the Schedule.

         "Associate"                         means any associate or associated
                                             company as such terms are
                                             respectively defined in Sections
                                             417 and 416 ICTA;

         "Astec"                             means Astec Developments Limited;

         "Bank's Security"                   means the floating charge and
                                             Standard Security granted by the
                                             Company in favour of Bank of
                                             Scotland;

         "Business Day"                      means a day on which banks are open
                                             for business in Aberdeen and
                                             London;

         "CA"                                the Companies Act 1985 (as
                                             amended);

         "Cash Consideration"                means the sum of (pound)20 million.

         "Commission"                        means the United States Securities
                                             and Exchange Commission.

         "Completion"                        means completion of the matters set
                                             out in Clause 5;

         "Completion Date"                   means the date of this Agreement;

         "Consideration"                     means the consideration payable by
                                             the Purchaser to the Vendors for
                                             the Sale Shares as set out in
                                             Clause 4;

         "Corporate Restructuring"           means the disposal by the Company
                                             of:-

                                             (a) Ascari and IWT;

                                             (b) 45,000 Redeemable Preference
                                                 Shares of (pound)1 each in Mere
                                                 Engineering Limited; and

                                             (c) certain motor vehicles and
                                                 motor cycles prior to the
                                                 Completion Date

         "Disclosure Letter"                 means the letter dated of even date
                                             with this Agreement signed by the
                                             Warrantors or by the Vendors'
                                             Solicitors on behalf of the
                                             Warrantors and addressed to and
                                             accepted by the Purchaser and
                                             Weatherford or by the Purchaser's
                                             and Weatherford's Solicitors on
                                             behalf of the Purchaser and
                                             Weatherford disclosing:-


<PAGE>   3

                                             (a) information constituting
                                                 exceptions to the Warranties;
                                                 and

                                             (b) particulars of other matters
                                                 referred to in this Agreement.

         "Dormant Subsidiaries"              the dormant subsidiaries of the
                                             Company, details of which are set
                                             out in Section B of Part 2 of the
                                             Schedule;

         "Expio"                             Expio Limited, a company
                                             incorporated in Scotland (no.
                                             191747) details of which are set
                                             out in Section A of Part 2 (1) of
                                             the Schedule;

         "F.A. or F. (No. 2) A"              followed by a stated year, means
                                             the Finance Act or the Finance (No.
                                             2) Act of that year;

         "Fair Market Value"                 means $35.175 peer share of
                                             Weatherford Common Stock;

         "the Group Companies"               means the Company, the UK
                                             Subsidiaries, Petroline L.L.C and
                                             the Dormant Subsidiaries and "Group
                                             Company" shall mean any of them;

         "the Heritable Properties"          means the heritable properties
                                             situated in Scotland brief
                                             particulars of which are set out in
                                             Section A of Part 3 of the
                                             Schedule;

         "ICTA"                              means the Income and Corporation
                                             Taxes Act 1988;

         "IWT"                               means Independent Well Technology
                                             Limited, details of which are given
                                             in Part 2 (2) of the Schedule;

         "Intellectual Property Rights"      means all rights to the patents,
                                             including the patents listed in
                                             Part 8 of the Schedule, any patent
                                             rights, inventions, shop rights,
                                             know how, trade secrets, designs,
                                             drawings, art work, plans, prints,
                                             manuals, models, design
                                             registrations, inventor's
                                             certificates, technical information
                                             and data, copyrightable works,
                                             lists of materials, patterns,
                                             moulds, records, diagrams,
                                             formulae, product design standards,
                                             tools, die, jigs, models,
                                             prototypes, product information
                                             literature, computer files,
                                             computer software, hard copy files,
                                             catalogues, specifications,
                                             confidentiality agreements,
                                             confidential information and other
                                             proprietary technology and similar
                                             information; all registered and
                                             unregistered trademarks, service
                                             marks, logos, trade names and all
                                             other trademark rights; all
                                             registered and unregistered
                                             copyrights; and all registrations
                                             for, and applications for
                                             registration of, any of the
                                             foregoing and shall also include
                                             the Group Companies' rights and
                                             know-how as presently constituted
                                             in and to the pipe-slotting
                                             machinery and the know-how as
                                             presently constituted in relation
                                             to the fabrication of the
                                             Expandable Sand Screen;


<PAGE>   4

         "the Leasehold Properties"          means the leasehold properties
                                             situated in Scotland brief
                                             particulars of which are set out in
                                             Section B of Part 3 of the
                                             Schedule;

         "the Management Accounts"           means the unaudited balance sheets
                                             of the Company, QMS and Aquatronic
                                             as at 30 June 1999 and their
                                             unaudited profit and loss account
                                             for the period from the Accounts
                                             Date to 30 June 1999 along with the
                                             unaudited balance sheet and profit
                                             and loss account of Expio for the
                                             period to 31 July 1999, copies of
                                             which form Part 9 of the Schedule;

         "Mr Zwart"                          means Klaas Johannes Zwart, one of
                                             the Vendors;

         "Mrs Zwart"                         means Mirjam Pauline Zwart, one of
                                             the Vendors;

         "the Non-Scottish Properties"       means the properties situated
                                             outwith Scotland owned, leased or
                                             occupied by the Group Companies,
                                             brief particulars of which are set
                                             out in Section C of Part 3 of the
                                             Schedule;

         "Permitted Activities"              means the business of the provision
                                             and supply of personnel by way of
                                             consultancy services and technical
                                             support to businesses or companies
                                             in the oil and gas industries
                                             excluding any services and advice
                                             with respect to matters involving
                                             the design, manufacture or sale of
                                             oil and gas well completion
                                             products and the provision of
                                             completion services relating
                                             thereto, such activities being
                                             included in the Restricted
                                             Business;

         "Petroline L.L.C"                   means Petroline Wellsystems (USA),
                                             L.L.C, a company incorporated under
                                             the laws of Delaware, USA, details
                                             of which are set out in Section A
                                             of Part 2 (1) of the Schedule;

         "the Purchaser's Accountants"       means Arthur Andersen L.L.P.;

         "the Purchaser's Solicitors"        means Dickson Minto W.S., 11 Walker
                                             Street, Edinburgh EH3 7NE;

         "QMS"                               means Quality Machining Services
                                             Limited, a company incorporated in
                                             Scotland (No. 148435) details of
                                             which are set out in Section A of
                                             Part 2 (1) of the Schedule;

         "Registration Rights Undertaking"   means the Registration Rights
                                             Undertaking set forth in Annex A
                                             hereto.

         "Relevant Proportion"               in relation to any obligation of or
                                             claim against a Warrantor pursuant
                                             to this Agreement means the
                                             proportion set against that
                                             Warrantor's name in Part 1B of the
                                             Schedule;


<PAGE>   5


         "Restricted Business"               means the businesses of the Group
                                             Companies as carried on at or prior
                                             to Completion (excluding the
                                             Permitted Activities);

         "the Sale Shares"                   means the 5,306,336 Ordinary Shares
                                             of 10p each in the capital of the
                                             Company, being the entire issued
                                             share capital of the Company;

         "the Scottish Properties"           means the Heritable Properties and
                                             the Leasehold Properties;


         "SEC Documents"                     means Weatherford's (a) Annual
                                             Report on Form 10-K for the year
                                             ended December 31, 1998, (b)
                                             Quarterly Reports on Form 10-Q for
                                             the quarters ended March 31, 1999
                                             and June 30, 1999, (c) Current
                                             Reports on Form 8-K dated April 29,
                                             1999, May 27, 1999, July 11, 1999,
                                             and August 16, 1999, and (d) proxy
                                             statement with respect to the
                                             Annual Meeting of Stockholders held
                                             on May 7, 1999.

         "the Schedule"                      means the Schedule in 9 parts
                                             annexed to this Agreement which
                                             shall form part of this Agreement;

         "the Securities Act"                means the United States Securities
                                             Act of 1933, as amended;

         "the Share Option Scheme"           means the Inland Revenue approved
                                             employee share option scheme
                                             established by the Company in terms
                                             of Rules of such scheme adopted by
                                             the Company by written resolution
                                             of the members of the Company dated
                                             16 September 1997;

         "Shell"                             means Shell Research Limited, an
                                             English company having an office at
                                             Shell Centre, London SE1 7NA,
                                             England, together with Shell's
                                             Affiliates Shell Internationale
                                             Research Maatschappij B.V. and
                                             Shell International Exploration and
                                             Production B.V.

         "Shell Licence"                     means that certain agreement
                                             attached between Shell and
                                             Petroline dated 4th and 15th April
                                             1996;

         "Shelf Registration"                means the Shelf Registration as
                                             defined in the Registration Rights
                                             Undertaking;

         "SSAPs"                             means Statements of Standard
                                             Accounting Practice;

         "Stock Consideration"               means that number of whole shares
                                             of Weatherford Common Stock having
                                             a Fair Market Value equal to
                                             (pound)84 million;

         "Tax"                               has the meaning given in the Tax
                                             Undertaking;

         "Tax Authority"                     has the meaning given in the Tax
                                             Undertaking;

         "the Tax Undertaking"               means the tax undertaking referred
                                             to in Clause 5.2.3 and in the form
                                             set out in Part 6 of the Schedule;

<PAGE>   6


         "TCGA"                              means the Taxation of Chargeable
                                             Gains Act 1992;

         "Title Warranties"                  means the warranties set forth in
                                             Clauses 6.1.1, 6.1.2, 6.1.3 and
                                             6.1.4 of this Agreement and the
                                             warranties set forth in Clauses
                                             2.3, 2.4, 2.5, 6.1, 6.3.1, 6.3.2,
                                             6.3.3, 6.3.5, 6.3.6, 6.3.8, 6.3.9,
                                             6.3.10 and 6.3.11 of Part 4 of the
                                             Schedule.;

         "the Trust"                         means the Fraser T. Innes
                                             Discretionary Trust constituted by
                                             Deed of Trust dated 25 February
                                             1999;

         "the Trustees"                      means Fraser Thomas Innes and P. &
                                             W. Trustees (Aberdeen) Limited as
                                             the trustees of the Fraser T. Innes
                                             Discretionary Trust;

         "the UK Subsidiaries"               means Aquatronic, Expio and QMS;

         "VATA 1994"                         means the Value Added Tax Act 1994;

         "the Vendors' Accountants"          means Ernst & Young, 50 Huntly
                                             Street, Aberdeen AB10 1ZN;

         "the Vendors' Solicitors"           means Paull & Williamsons,
                                             Investment House, 6 Union Row,
                                             Aberdeen AB10 1DQ;

         "the Warranties"                    means the representations,
                                             warranties and undertakings on the
                                             part of the Warrantors set out in
                                             Clause 6 and in Part 4 of the
                                             Schedule and "Warranty" means any
                                             of them;

         "the Warrantors"                    means the individuals listed in
                                             Part 1B of the Schedule;

         "Weatherford Shares"                means the shares of Weatherford
                                             Common Stock to be issued to the
                                             Vendors as the Stock Consideration
                                             pursuant to this Agreement;

         "the Weatherford Common Stock"      means the common stock of
                                             Weatherford, $1.00 par value.

1.2      Words and expressions defined in the Companies Act 1985 shall bear the
         same meanings in this Agreement.

1.3      Unless the context otherwise requires, the masculine gender shall be
         deemed to include the feminine and neuter and vice versa and the
         singular number shall be deemed to include the plural and vice versa.

1.4      The headings in this Agreement are for convenience of reference only
         and shall not affect the construction or interpretation hereof.

1.5      In this Agreement:-

         1.5.1    references to any statute or statutory provision shall include
                  references to such statute or provision as from time to time
                  amended, extended, re-enacted or consolidated whether before,
                  on or (in the case of re-enactment or consolidation only)
                  after the date


<PAGE>   7


                  of execution hereof, and shall further include all statutory
                  instruments or orders made pursuant thereto;

         1.5.2    references to Clauses or Sub-clauses or to a Part of the
                  Schedule are to clauses and sub-clauses of this Agreement or
                  to parts of the Schedule respectively;

         1.5.3    a reference to a person includes a reference to a firm, a body
                  corporate, an unincorporated association and a statutory or
                  regulatory authority;

         1.5.4    references to any Scottish legal term for any action, remedy,
                  method of judicial proceeding, legal document, legal status,
                  court, official or any other legal concept shall in respect of
                  any jurisdiction other than Scotland be deemed to include what
                  most nearly approximates in that jurisdiction to the Scottish
                  legal term.

2.       CONDITIONS PRECEDENT TO COMPLETION BY VENDORS

2.1      The obligations of the Vendors to complete the sale and purchase of the
         Sale Shares are subject to the satisfaction (or waiver by the Vendors)
         of the following conditions:-

         2.1.1    Shelf Registration. Weatherford shall have delivered to the
                  Vendors a draft of the Shelf Registration under the Securities
                  Act to be filed by Weatherford registering the Weatherford
                  Shares.

         2.1.2    Listing. The Weatherford Shares shall have been accepted for
                  listing, subject only to issuance, on the New York Stock
                  Exchange.

         2.1.3    Opinion of Counsel. The Vendors shall have received the
                  favourable opinion, addressed to the Vendors, of Andrews &
                  Kurth L.L.P., counsel for Weatherford, dated as of the
                  Completion Date in the form attached hereto as Annex C.

3.       SALE AND PURCHASE

3.1      Subject to the terms and conditions of this Agreement, including,
         without prejudice to the foregoing generality, the provisions of Part 5
         of the Schedule, the Vendors shall sell as beneficial owners (except
         for the Trustees who shall sell in their capacity as trustees) and the
         Purchaser shall purchase the Sale Shares free from all liens, charges
         and encumbrances but together with all rights attaching to them.

3.2      Each of the Vendors hereby waives any rights of pre-emption, which he
         may have relating to any of the Sale Shares, whether conferred by the
         Articles of Association of the Company or otherwise.

4.       CONSIDERATION

4.1      The consideration for the sale and purchase of the Sale Shares shall be
         the aggregate of the Cash Consideration and the Stock Consideration
         payable in accordance with Clause 5.5.

4.2      The Vendors shall be entitled to the Consideration in the amounts set
         out in column 3 of Part 1A of the Schedule.

4.3      Any payment of the Consideration may be made by the Purchaser or the
         Purchaser's Solicitors on behalf of the Purchaser to the Vendors'
         Solicitors whose receipt thereof shall be full and complete discharge
         of the Purchaser, who will not be concerned with the distribution
         thereof to and among the Vendors.


<PAGE>   8



5.       COMPLETION

5.1      The sale and purchase of the Sale Shares shall be completed on the
         Completion Date at the offices of the Vendors' Solicitors when, subject
         to Clause 5.6, all the transactions mentioned in the following
         sub-clauses shall take place.

5.2      The Vendors shall, subject to performance by the Purchaser of its
         obligations under Clause 5.5 deliver to the Purchaser:-

         5.2.1    evidence of the exercise of options by the holders thereof
                  pursuant to the Share Option Scheme and transfers of shares
                  resulting therefrom in favour of Klaas Johannes Zwart, one of
                  the Vendors;

         5.2.2    duly completed and signed transfers in respect of the Sale
                  Shares in favour of the Purchaser or as it may direct together
                  with the relative share certificates, or indemnities in
                  respect thereof;

         5.2.3    the Tax Undertaking duly executed by the Warrantors;

         5.2.4    the Disclosure Letter duly executed by or on behalf of the
                  Warrantors;

         5.2.5    the statutory books of the Group Companies and their
                  certificates of incorporation;

         5.2.6    if so requested by the Purchaser, a letter from the existing
                  auditors of the Group Companies resigning their position as
                  such auditors and containing a statement that there are no
                  such circumstances as are referred to in Section 394(1) CA;

         5.2.7    letters of resignation from office from such of the Directors
                  of the Group Companies as the Purchaser may request in the
                  Agreed Form;

         5.2.8    a letter of resignation from office from the Secretary of the
                  Group Companies in the Agreed Form;

         5.2.9    the appropriate forms to amend the mandates given by the Group
                  Companies to their respective bankers;

         5.2.10   evidence of the completion of the Corporate Restructuring;

         5.2.11   confirmation by Shell that they have no objection to the
                  Purchaser or Weatherford as the purchaser of the Sale Shares
                  pursuant to the provisions of Clause 14 (1) of the Shell
                  Licence;

         5.2.12   executed service agreements with Fraser T. Innes, Stuart E.
                  Ferguson, Wayne Rudd and Paul Metcalfe; and

         5.2.13   evidence of the transfer to the Company of all patent and
                  patent rights held by any of the Vendors or their Affiliates
                  which are used in the conduct of the business of the Group
                  Companies.

5.3      The Vendors shall repay all money owing by them to the Group Companies
         and the Group Companies shall repay all monies owing by them to the
         Vendors or any of their Affiliates or pension schemes whether due for
         repayment or not and, except in respect of any obligations of the Group
         Companies pursuant to the contracts of employment of Fraser Thomas
         Innes and Stuart Edward Ferguson, two of the Vendors or pursuant to any
         benefits to which any of the Vendors is entitled under the pension
         scheme(s) detailed in Part 7 of the Schedule , release the Group
         Companies from any continuing liability or obligation to the Vendors.

5.4      The Vendors shall procure that a Board Meeting of the Company shall be
         held at which:-

<PAGE>   9


         5.4.1    it shall be resolved that the transfers referred to in Clause
                  5.2.2, be approved for registration (subject only to their
                  being duly stamped);

         5.4.2    it shall be resolved to accept any resignations required by
                  the Purchaser in terms of Clause 5.2.7 and the resignation
                  referred to in Clause 5.2.8;

         5.4.3    such persons as the Purchaser may nominate shall be validly
                  co-opted or appointed as Directors or Secretary of the
                  Company; and

         5.4.4    such firm or company as the Purchaser may nominate shall be
                  appointed auditors of the Company.

5.5      Upon completion of the matters referred to in Clauses 5.2 to 5.4
         inclusive, (and subject to Clause 5.6) the Purchaser or the Purchaser's
         Solicitors on behalf of the Purchaser shall

         5.5.1    pay the Cash Consideration to the Vendors' Solicitors on
                  behalf of the Vendors by telegraphic transfer or such other
                  form of electronic transfer as may be notified to the
                  Purchaser's Solicitors by the Vendors' Solicitors; and

         5.5.2    cause there to be issued to the Vendors the Weatherford Shares
                  registered in such name or names as may be requested in
                  writing by the Vendors and shall deliver certificates to the
                  Vendors' Solicitors on behalf of the Vendors. No fractional
                  shares of Weatherford Common Stock shall be issued to the
                  Vendors and to the extent a fractional share would otherwise
                  be issued, the number of Weatherford Shares to be issued would
                  be rounded to the nearest whole.

5.6      The Purchaser may in its absolute discretion waive any requirement
         contained in Clauses 5.2 to 5.4 (inclusive).

6.       WARRANTIES AND UNDERTAKINGS BY WARRANTORS

6.1      Each of the Warrantors represents, warrants and undertakes to the
         Purchaser for his own account only in the Relevant Proportion and not
         jointly and severally that as at the date hereof and as at Completion:-

         6.1.1    the Sale Shares constitute the whole of the issued and
                  allotted share capital of the Company;

         6.1.2    there is no pledge, lien or other encumbrance on, over or
                  affecting those of the Sale Shares owned by him and there is
                  no agreement or arrangement to give or create any such
                  encumbrance and no claim has been or will be made by any
                  person to be entitled to any of the foregoing;

         6.1.3    each of the Vendors is entitled (in the case of the Trustees
                  in their capacity as trustees) to transfer the full legal and
                  beneficial ownership of those of the Sale Shares registered in
                  his name to the Purchaser on the terms of this Agreement
                  without the consent of any third party;

         6.1.4    the information in Part 1A of the Schedule relating to the
                  respective holdings of Sale Shares of the Vendors and in Part
                  2 of the Schedule relating to the Group Companies is true and
                  accurate;

         6.1.5    save as fairly disclosed in the Disclosure Letter, the
                  Warranties are true and accurate in all respects; and


<PAGE>   10


         6.1.6    Each of the Vendors currently intends to hold the Weatherford
                  Shares as a purely passive investor and not with the intention
                  of attempting to influence the basic decisions of Weatherford
                  or to participate in the management of Weatherford.

6.2      For the purposes of Clauses 6.1.2 and 6.1.3, the representations,
         warranties and undertakings of Fraser T. Innes, one of the Warrantors,
         shall be deemed to apply to those of the Sale Shares registered in the
         name of Fraser T. Innes and P. & W. Trustees (Aberdeen) Limited as
         trustees of the Fraser T. Innes Discretionary Trust.

6.3      Each of the Warranties and the other obligations of the Warrantors in
         terms of this Agreement is given and entered into by each Warrantors
         for his own account only in the Relevant Proportion and not jointly and
         severally and the Purchaser acknowledges and agrees with each of the
         Warrantors that their respective liabilities in respect of any claim
         for breach of this Agreement (including any claims for breach of the
         Warranties or the Tax Undertaking) shall not exceed the Relevant
         Proportion of any such claim.

6.4      In relation to any Warranty which refers to the knowledge, information,
         awareness or belief of the Warrantors then it shall be deemed, except
         where expressly provided otherwise, to include an additional statement
         that the Warrantors have made enquiry only of themselves and Gillian
         Robertson, one of the employees of the Company, the Vendors'
         Accountants and the Vendors' Solicitors into the subject matter of that
         Warranty.

6.5      The Purchaser hereby acknowledges that in entering into this Agreement
         it is not relying on any representations, warranties or undertakings
         whatsoever and by whomsoever made save for the representations,
         warranties and undertakings set out in this Agreement.

6.6      By its execution hereof, the Purchaser hereby irrevocably agrees with
         and undertakes to the Warrantors that notwithstanding any other
         provisions of this Agreement or any rule of law to the contrary:-

         (a)      the Disclosure Letter forms and shall be deemed to have formed
                  part of this Agreement as if its terms were fully set out
                  mutatis mutandis herein;

         (b)      the Purchaser has had an opportunity to review all documents
                  listed in the annexures to the Disclosure Letter.

6.7      The provisions of Part 5 of the Schedule shall apply in respect of each
         of the Warranties and (to the extent specified therein) the Tax
         Undertaking and/or any claim for breach thereof.

6.8      The Warrantors agree that the Warranties are not and are not to be
         affected or limited by any previous or other disclosures express or
         implied to the Purchaser, its officers or representatives or
         professional advisers (but that always without prejudice to the
         provisions of 2 (f) (vii) of Part 5 of the Schedule and the content of
         the Disclosure Letter) or by any investigation made by or on behalf of
         the Purchaser into the affairs of the Company or any of the UK
         Subsidiaries or by any information of which the Purchaser or its agents
         have actual or constructive knowledge.

6.9      The Warrantors undertake not to make and warrant that no other person
         claiming under or through them will make any claim against the Company
         or any of the UK Subsidiaries or any officer or employee thereof on
         whom they may have relied before entering into any term of this
         Agreement or in the preparation of the Disclosure Letter in respect of
         any claim under this Agreement or any omission from or statement in the
         Disclosure Letter.

6.10     Mr. Zwart hereby agrees to be responsible for and to indemnify the
         Purchaser and the Group Companies for any costs, losses, claims,
         liabilities and expenses, including reasonable legal fees incurred or
         suffered by the Purchaser or any of the Group Companies that arise in
         consequence of (a) any Group Company not holding at Completion any
         necessary licences


<PAGE>   11


         relating to waste management and (b) the operation of the businesses of
         Ascari or IWT or arising out of or relating to the Corporate
         Restructuring. Such indemnity shall apply for a period of two years
         from the Completion Date and shall thereafter cease to be enforceable
         except in respect of any claim thereunder made by the Purchaser or any
         of the Group Companies prior to the expiry of the said period and in
         respect of which proceedings have been instituted within three months
         following the date of such claim. Mr. Zwart represents and warrants
         that other than pursuant to the Corporate Restructuring or otherwise as
         set forth in the Disclosure Letter, no assets of the Group Companies
         have been transferred or assigned to him or his Affiliates or
         Associates since March 31, 1999.

6.11     None of the Group Companies or their respective Affiliates or
         Associates has employed or retained any investment banker, broker,
         agent, finder or other party, or incurred any obligation for brokerage
         fees, finder's fees or commissions, with respect to the sale by the
         Vendors of any of the stock or assets of the Group Companies or with
         respect to the transactions contemplated by this Agreement, or
         otherwise dealt with anyone purporting to act in the capacity of a
         funder or broker with respect thereto whereby such Group Companies or
         their Affiliates or Associates may be obligated to pay such a fee or
         commission. The Vendors agree that they are responsible and liable for
         and will pay any such fees resulting from the sale of the Sale Shares
         and that any of such fees are not and will not be an obligation of any
         of the Group Companies. The Vendors agree to indemnify and hold the
         Purchaser, Weatherford and its Affiliates harmless from and against any
         and all claims, liabilities or obligations with respect to all fees,
         commissions or expenses asserted by any person on the basis of any act,
         statement, agreement or commitment alleged to have been made by any of
         the Group Companies or any of the Vendors or any Affiliates or
         Affiliate of the Group Companies or any of the Vendors with respect to
         any such fee, commission or expense.

6.12     Securities Law Matters:-

         6.12.1   The Vendors recognise and understand that the Weatherford
                  Shares will not, except as expressly provided in the
                  Registration Rights Undertaking, be registered under the
                  Securities Act or under the securities laws of any other
                  jurisdiction (the "securities laws"). The Weatherford Shares
                  are not being so registered in reliance upon exemptions from
                  the Securities Act and the securities laws which are
                  predicated, in part, on the representations, warranties and
                  agreements of the Vendors contained herein.

         6.12.2   Each of the Vendors represents and warrants that (i) the
                  Vendor has business knowledge and experience, such experience
                  being based on actual participation therein, (ii) the Vendor
                  is capable of evaluating the merits and risks of an investment
                  in the Weatherford Shares and the suitability thereof as an
                  investment therefor and (iii) the Weatherford Shares to be
                  acquired by the Vendor will be acquired solely for investment
                  and not with a view toward resale or redistribution in
                  violation of the Securities Act or the securities laws, it
                  being acknowledged that the Vendors will have the right to
                  resell the shares as provided in the Registration Rights
                  Undertaking and any resale or intended resale by them pursuant
                  to the registration rights provided therein will not be a
                  breach of this representation.

         6.12.3   The Vendors agree that the certificates representing the
                  Weatherford Shares will be imprinted with the following
                  legend, the terms of which are specifically agreed to:

                  THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE BEEN ACQUIRED
                  FOR INVESTMENT AND HAVE NOT BEEN REGISTERED UNDER THE
                  SECURITIES ACT OF 1933, OR THE SECURITIES LAWS OF ANY
                  JURISDICTION, IN RELIANCE UPON EXEMPTIONS FROM REGISTRATION
                  REQUIREMENTS. WITHOUT SUCH REGISTRATION, SUCH SHARES MAY NOT
                  BE SOLD, PLEDGED, HYPOTHECATED OR OTHERWISE TRANSFERRED,
                  EXCEPT UPON DELIVERY TO THE COMPANY OF AN


<PAGE>   12


                  OPINION OF COUNSEL REASONABLY SATISFACTORY TO THE COMPANY THAT
                  REGISTRATION IS NOT REQUIRED FOR SUCH SALE, PLEDGE,
                  HYPOTHECATION OR TRANSFER OR THE SUBMISSION TO THE COMPANY OF
                  SUCH OTHER EVIDENCE AS MAY BE SATISFACTORY TO THE COMPANY TO
                  THE EFFECT THAT SUCH SALE, PLEDGE, HYPOTHECATION OR TRANSFER
                  SHALL NOT BE IN VIOLATION OF THE SECURITIES ACT OF 1933 OR
                  APPLICABLE STATE SECURITIES LAWS OR ANY RULE OR REGULATION
                  PROMULGATED THEREUNDER.

                  The Vendors understand and agree that appropriate stop
                  transfer notations will be placed in the records of
                  Weatherford and with its transfer agents in respect of the
                  Weatherford Shares to be issued to the Vendors. Weatherford
                  agrees that any Weatherford Shares sold pursuant to an
                  effective registration statement, including a registration
                  statement or the Shelf Registration filed pursuant to the
                  Registration Rights Undertaking, shall have the above legend
                  removed to permit the closing of the sale within three
                  Business Days of written notice of the sale and certification
                  by the Vendors that the sale was made pursuant to the plan of
                  distribution described in the registration statement or the
                  Shelf Registration and the prospectus delivery requirements
                  under the Securities Act were fully complied with in
                  connection with the sale.

7.       WARRANTIES AND UNDERTAKINGS BY THE PURCHASER AND WEATHERFORD;
         REGISTRATION RIGHTS; SHARE PRICE PROTECTION

7.1      The Purchaser and Weatherford hereby jointly and severally represent,
         warrant and undertake to the Vendors that as at the date hereof and as
         at Completion:

         7.1.1    Organisation and Qualification. Each of Weatherford and the
                  Purchaser is a corporation, duly incorporated, validly
                  existing and in good standing under the laws of the
                  jurisdiction of its incorporation and has all requisite
                  corporate power and authority to own, lease and operate its
                  properties and to carry on its business as it is now being
                  conducted.

         7.1.2    Articles of Incorporation; By-Laws. Weatherford has furnished
                  to the Vendors a complete and correct copy of the Articles of
                  Incorporation and the By-Laws, as amended or restated, of each
                  of Weatherford and the Purchaser. Neither Weatherford nor the
                  Purchaser is in violation of any of the provisions of its
                  Articles of Incorporation or By-Laws.

         7.1.3    Capitalisation

                  (a)    As of the date of this Agreement, the authorised
                         capital stock of Weatherford consists of (i)
                         250,000,000 shares of Weatherford Common Stock and (ii)
                         3,000,000 shares of preferred stock, par value $1.00
                         per share.

                  (b)    At Completion, the Weatherford Shares will be duly
                         authorised, validly issued, fully paid and
                         non-assessable and not subject to adverse claims of
                         third parties or pre-emptive rights created by statute,
                         Weatherford's Articles of Incorporation or By-Laws or
                         any agreement to which Weatherford is a party or is
                         bound. Upon delivery of the Weatherford Shares at
                         Completion, the Vendors will own the Weatherford Shares
                         free and clear of all adverse claims.

         7.1.4    Authority; Enforceability. Each of Weatherford and the
                  Purchaser has the requisite corporate power and authority to
                  execute and deliver this Agreement, the Registration Rights
                  Undertaking and the Tax Undertaking, to perform its
                  obligations under each such agreement, and to consummate the
                  transactions contemplated by each such agreement. The
                  execution and delivery of each agreement, the Registration
                  Rights


<PAGE>   13



                  Undertaking and the Tax Undertaking by each of Weatherford and
                  the Purchaser, and the consummation by each of Weatherford and
                  the Purchaser of the transactions contemplated by each such
                  agreement, have been duly authorised by all necessary
                  corporate action and no other corporate proceedings on the
                  part of Weatherford or the Purchaser are necessary to
                  authorise this Agreement, the Registration Rights Undertaking
                  or the Tax Undertaking or to consummate the transactions
                  contemplated by each such agreement. This Agreement, the
                  Registration Rights Undertaking and the Tax Undertaking have
                  each been duly executed and delivered by each of Weatherford
                  and the Purchaser and, assuming the due authorisation,
                  execution and delivery by the Vendors, each constitutes a
                  legal, valid and binding obligation of Weatherford and the
                  Purchaser, enforceable against each of them in accordance with
                  their terms, subject to public policy limitations with respect
                  to the indemnification provided in the Registration Rights
                  Undertaking.

         7.1.5    No Conflict; Required Filings and Consents

                  (a)    The execution and delivery of this Agreement by
                         Weatherford and the Purchaser do not, and the
                         performance of this Agreement by Weatherford and the
                         Purchaser will not (i) conflict with or violate the
                         Articles or Certificate of Incorporation or By-Laws or
                         equivalent organisational documents of Weatherford or
                         the Purchaser, or any resolution adopted by the board
                         of directors or stockholders of Weatherford or the
                         Purchaser, (ii) subject to (A) obtaining the consents,
                         approvals, authorisations and permits of, and making
                         filings with or notification to, any governmental or
                         regulatory authority, whether domestic or foreign
                         ("Governmental Entities"), pursuant to the applicable
                         requirements of any foreign or domestic federal, state
                         or local law, statute, ordinance, rule, regulation,
                         order, judgement or decree ("Laws") or of any third
                         party, and (B) obtaining the consents, approvals,
                         authorisations and permits of, and making filings with
                         or notifications to any Governmental Entities pursuant
                         to the applicable requirements of Law, conflict with or
                         violate any Laws applicable to Weatherford, the
                         Purchaser or any of Weatherford's subsidiaries or by
                         which any of their respective properties is bound or
                         affected; or (iii) result in any breach of or
                         constitute a default (or an event that with notice or
                         lapse of time or both would become a default) under, or
                         give to others any rights of termination, amendment,
                         acceleration or cancellation of, or result in the
                         creation of a lien or encumbrance on any of the
                         properties or assets of Weatherford, the Purchaser or
                         any of Weatherford's subsidiaries pursuant to, any
                         note, bond, mortgage, indenture, contract, agreement,
                         lease, license, permit, franchise or other instrument
                         or obligation to which Weatherford, the Purchaser or
                         any of Weatherford's subsidiaries is a party or by
                         which Weatherford, the Purchaser or any of
                         Weatherford's subsidiaries or any of their respective
                         properties is bound or affected, except for any such
                         matters described in clause (ii) or (iii) that would
                         not have a Weatherford Material Adverse Effect. For
                         purposes of this Agreement, Weatherford Material
                         Adverse Effect means any change or effect that,
                         individually or when taken together with all such other
                         changes or effects, is or would reasonably be
                         considered to be materially adverse to the condition,
                         financial or otherwise, results of operation,
                         prospects, business, properties, assets or liabilities
                         of Weatherford and its subsidiaries, taken as a whole.

                  (b)    Based in part on the representations by the Vendors,
                         the execution and delivery of this Agreement by
                         Weatherford and the Purchaser do not, and the
                         performance of this Agreement by Weatherford and the
                         Purchaser shall not, require any prior consent,
                         approval, authorisation or permit of, or filing with or
                         notification to, any Governmental Entities or other
                         third party in addition to those required to be
                         disclosed in the Disclosure Letter.

<PAGE>   14


         7.1.6    Reports; Financial Statements

                  (a)    Since 31 December 1997, Weatherford and its
                         subsidiaries have filed (i) all forms, reports,
                         statements, notices and other documents required to be
                         filed with the Commission (collectively, the
                         "Weatherford SEC Reports"). The Weatherford SEC Reports
                         were prepared in all material respects in accordance
                         with the requirements of applicable laws (including the
                         Securities Act and the Securities Exchange Act of 1934,
                         as amended, as the case may be). As of their respective
                         dates, the Weatherford SEC Reports did not contain any
                         untrue statement of a material fact or omit to state a
                         material fact required to be stated therein or
                         necessary to make the statements made therein, in light
                         of the circumstances in which they were made, not
                         misleading. Since the filing of Weatherford's latest
                         quarterly report on Form 10-Q or current report on Form
                         8-K filed with the Commission, there has been no
                         Weatherford Material Adverse Effect that has not been
                         disclosed through press releases issued by Weatherford.

                  (b)    Each of the consolidated financial statements
                         (including, in each case, any related notes thereto)
                         contained in the Weatherford SEC Reports (i) has been
                         prepared in all material respects in accordance with
                         the published rules and regulations of the SEC and
                         Generally Accepted Accounting Principles ("GAAP")
                         applied on a consistent basis throughout the periods
                         involved (except (x) to the extent required by changes
                         in GAAP and (y) with respect to Weatherford SEC Reports
                         filed prior to the date of this Agreement, as may be
                         indicated in the notes thereto) and (ii) fairly
                         presents the consolidated financial position of
                         Weatherford and its subsidiaries as of the respective
                         dates thereof and the consolidated results of
                         operations and cash flows for the periods indicated,
                         except that (A) any unaudited interim financial
                         statements were or will be subject to normal and
                         recurring year-end adjustments which were not or are
                         not expected to be material in amount and (B) any pro
                         forma financial information contained in such
                         consolidated financial statements is not or may not be
                         necessarily indicative of the consolidated financial
                         position of Weatherford and its subsidiaries as of the
                         respective dates thereof and the consolidated results
                         of operations and cash flows for the periods indicated.

         7.1.7    Completion; Disclosure. Each of the representations and
                  warranties set forth in this Clause 7 shall be deemed made at
                  and as of the date of this Agreement and as at Completion,
                  except to the extent such representations and warranties
                  specifically refer to a date other than the date of this
                  Agreement.

         7.1.8    Investment Representations. The Purchaser understands that the
                  Sale Shares will not have been registered under the Securities
                  Act, that there is no established market for the Sale Shares,
                  and that the Sale Shares must be held indefinitely and cannot
                  be transferred unless an exemption from such registration is
                  available with respect to such transfer.

         7.1.9    Certain Proceedings. There is no pending Proceeding that has
                  been commenced against Weatherford or the Purchaser, or
                  against any of their officers, directors or stockholders in
                  connection with the affairs of Weatherford or the Purchaser,
                  and that challenges, or may have the effect of preventing,
                  delaying, making illegal or otherwise interfering with, any of
                  the transactions contemplated by the Agreement or that
                  involves material claims not disclosed in the Weatherford SEC
                  Reports against Weatherford or its affiliates. To the
                  knowledge of Weatherford and the Purchaser, no such Proceeding
                  has been threatened. For purposes of this Agreement, a
                  Proceeding means any action, binding arbitration, audit,
                  hearing, formal investigation, litigation


<PAGE>   15


                  or suit (whether civil, criminal or administrative) commenced,
                  brought, conducted or heard by or before the Commission.

7.2      Weatherford agrees to register for resale all of the Weatherford Shares
         pursuant to the terms of the Registration Rights Undertaking.

7.3      Weatherford and the Purchaser agree to provide to the Vendors the
         following price protection with respect to the Weatherford Shares:

         7.3.1    Subject to the terms of this Clause 7.3, if a Vendor sells any
                  Weatherford Shares on or before the Protection Termination
                  Date (which date follows the Completion Date by 365 days plus
                  such additional number of days following the effectiveness of
                  the Shelf Registration during which Vendors were not entitled
                  or not legally permitted to sell Weatherford Shares under the
                  Shelf Registration) in a bona fide open market transaction to
                  a person who is not an Affiliate or Associate of any of the
                  Vendors (a "Resale") at a net sales price per share (after
                  deducting customary brokerage fees, commissions and discounts
                  of any brokerage or investment banking firm approved by
                  Weatherford (a list of approved firms will be provided; such
                  list will include DLJ, Merrill Lynch, Morgan Stanley and
                  Lehman Brothers) that may be assisting in the Resale) ("Net
                  Sale Price") that is less than $35.175 (the "Floor Price"),
                  Weatherford and the Purchaser agree to pay such selling Vendor
                  an amount equal to the number of Weatherford Shares sold in
                  the Resale multiplied by the difference between the Floor
                  Price and the Net Sale Price per share (less such brokerage
                  fees, commissions and discounts) received in the Resale (each
                  payment referred to above is referred to herein as an
                  "Additional Payment").

         7.3.2    On the fifth Business Day following the receipt by Weatherford
                  of documentation of a Resale, including a copy of the broker's
                  transaction report for the Resale which shall include the
                  gross sales price per Weatherford Share sold in the Resale, an
                  Additional Payment shall be paid by the Purchaser or
                  Weatherford to the appropriate selling Vendor by wire transfer
                  of same day funds (as designated by such Vendor).

         7.3.3    If (i) the closing sales price of the Weatherford Common
                  Stock, as reported by the New York Stock Exchange, is greater
                  than 120% of the Floor Price for a period of twenty
                  consecutive trading days subsequent to the date the Shelf
                  Registration is declared effective by the Commission and (ii)
                  during the entirety of such twenty consecutive trading days
                  Vendors were entitled and permitted to sell Weatherford Shares
                  pursuant to the Shelf Registration, Weatherford and the
                  Purchaser shall not be obligated to make Additional Payments
                  for sales of Weatherford Shares made after such period.

         7.3.4    For purposes of this Clause 7.3, references to the Weatherford
                  Common Stock and the Weatherford Shares shall include any
                  stock, securities, cash or other property that may be received
                  by a stockholder who held a share of the Common Stock on the
                  Completion Date in respect of such share and all references to
                  the market value of the Weatherford Common Stock as of any
                  date shall mean the sum of the market value of the Weatherford
                  Common Stock and such other stock, securities, cash or other
                  property that may be received by a holder of the Weatherford
                  Common Stock in respect of a share of Weatherford Common Stock
                  as of the Completion Date. The determination of the value of
                  any security shall be based on the closing sale price of that
                  security on the principal stock exchange on which it is listed
                  if that security is traded on a national securities exchange.
                  If the principal market in which a security is traded is an
                  automated trading system, such as NASDAQ, the market value on
                  any day shall be the average of the high and low bid price for
                  that security on that day. If any other security or property
                  is received, its value shall be determined by agreement by a
                  nationally recognised investment banking firm selected in good
                  faith by Weatherford. In the event of a reclassification of
                  the Weatherford Common Stock

<PAGE>   16


                  into a greater or lesser number of shares of Weatherford
                  Common Stock, all references to numbers of shares of
                  Weatherford Common Stock and all market prices for the
                  Weatherford Common Stock, including the Floor Price, shall be
                  appropriately adjusted to reflect such reclassification.

         7.3.5    For purposes of this Clause 7.3, in the event there is a
                  distribution of any stock, securities, cash or other property
                  by Weatherford to the Weatherford stockholders, the Floor
                  Price shall be reduced by the market value (as of the
                  distribution date) of such stock, securities, cash or other
                  property so received in respect of a share of the Common Stock
                  and thereafter if there is a disposition of such stock,
                  securities or other property by the Vendor who receives the
                  same, the price protection provided in Clause 7.3.1 shall
                  apply to any resale of all or part of such stock, securities
                  or other property, with the Floor Price with respect to such
                  stock, securities or other property being the market value of
                  such stock, securities or other property used for reducing the
                  Floor Price in the first instance. The value of any such
                  stock, securities or other properties shall be determined and
                  calculated in the same manner as provided in Clause 7.3.4.

         7.3.6    Weatherford is currently contemplating a spin-off of its
                  drilling products division to its stockholders. A hypothetical
                  example of adjustments for that spin-off pursuant to Clause
                  7.3 is set forth in Annex B hereto.

7.4      As used hereinbelow: (i) a "Registration Failure" means that the Shelf
         Registration has not been declared effective by the Commission (or if,
         having been declared effective, a stop order is issued by the
         Commission or other proceedings are brought by the Commission which
         prevent sales pursuant to the Shelf Registration on the applicable Put
         Date); (ii) First Put Date means the date that is ninety days after the
         Completion Date; (iii) Second Put Date means the date that is one
         hundred and eighty days after the Completion Date; and (iv) Third Put
         Date means the date that is two hundred and seventy days after the
         Completion Date.

         7.4.1    If a Registration Failure exists on the First Put Date, then
                  each Vendor shall have the right and option exercisable for
                  thirty days after the First Put Date, to compel the Purchaser
                  and Weatherford to repurchase all or any portion of one-third
                  of the Weatherford Shares received by such Vendor (and any
                  stock, securities or other property received as a distribution
                  in respect of such Weatherford Shares), at a price equal to
                  the Floor Price of the shares (as defined in Clause 7.3.1)
                  plus a cash payment that is equal to interest, calculated at
                  the base rate from time to time of Bank of Scotland plus 1%,
                  from the Completion Date until paid, on the amount that is
                  equal to three times the aggregate Floor Price of the shares
                  as to which the option is exercised.

         7.4.2    If a Registration Failure exists on the Second Put Date, then
                  each Vendor shall have the additional right and option
                  exercisable for thirty days after the Second Put Date, to
                  compel the Purchaser and Weatherford to repurchase all or any
                  portion of an additional one-third of the Weatherford Shares
                  (and any stock, securities or other property received as a
                  distribution in respect of such Weatherford Shares) received
                  by such Vendor, at a price equal to the Floor Price of the
                  Shares (as defined in Clause 7.3.1), plus a cash payment that
                  is equal to interest, calculated at the base rate from time to
                  time of Bank of Scotland plus 1% from the Completion Date
                  until paid, on the amount that is equal to two times the
                  aggregate Floor Price of the shares as to which the option is
                  exercised.

         7.4.3    If a Registration Failure exists on the Third Put Date, then
                  each Vendor shall have the right and option, exercisable for
                  thirty days after the Third Put Date, to compel the Purchaser
                  and Weatherford to repurchase all or any portion of an
                  additional one-third of the Weatherford Shares (and any stock,
                  securities or other property received as a distribution in
                  respect of such Weatherford Shares) received by such Vendor,
                  at a


<PAGE>   17


                  price equal to the Floor Price of the shares (as defined in
                  Clause 7.3.1) plus interest, calculated at the base rate from
                  time to time of Bank of Scotland plus 1%, from the Completion
                  Date until paid, on the amount that is equal to the aggregate
                  Floor Price of the shares as to which the option is exercised.

         7.4.4    Each option created by Section 7.4 in favour of a Vendor is
                  exercisable by written notice from such Vendor to Purchaser
                  during the exercise period of such option. If an option is
                  exercised the completion of the purchase and sale of the
                  shares shall occur on the fifth Business Day thereafter. The
                  Vendor shall deliver certificates representing the shares,
                  duly endorsed for transfer to Weatherford, against which
                  delivery Weatherford and the Purchaser shall pay the amount
                  due the selling Vendor by wire transfer of same day funds (as
                  designated by such Vendor) in pounds sterling. Weatherford
                  hereby unconditionally and irrevocably agrees to cause the
                  Purchaser to comply with its obligations under this Agreement
                  and to be jointly and severally liable for the performance by
                  the Purchaser of its agreements and obligations hereunder as
                  if Weatherford were the primary party hereto. Weatherford and
                  the Purchaser, jointly and severally, will indemnify Vendors
                  (or any of them) for any loss, damage, cost or expense
                  (including, without limitation, reasonable attorneys' fees)
                  incurred by any Vendor by reason of the failure of Weatherford
                  or the Purchaser to comply with any of its agreements,
                  covenants or undertakings in this Agreement, the Tax
                  Undertaking and/or the Registration Rights Undertaking or the
                  inaccuracy, breach or incorrectness of any warranty or
                  representation of Weatherford or the Purchaser herein or
                  therein.

8.       RESTRICTIVE COVENANT

8.1      For the purposes of assuring to the Purchaser the benefit of the
         businesses and goodwill of the Group Companies, Mr Zwart and Mrs. Zwart
         each undertakes to the Purchaser and Weatherford that they will not:-

         8.1.1    for a period of three years after the Completion Date either
                  solely or jointly with any other person, firm or company
                  directly or indirectly carry on or be engaged or interested
                  (except as the holder for investment of securities dealt on a
                  stock exchange and not exceeding 5 per cent in nominal value
                  of the securities of any class) in any Restricted Business;

         8.1.2    for a period of three years after the Completion Date, without
                  the prior written consent of the Purchaser, solicit or
                  endeavour to entice away the services of any employee of or
                  contractor to any Group Company engaged in skilled or
                  managerial work at any time in the period of one year
                  immediately prior to the Completion Date;

         8.1.3    in competition with any Group Company for a period of three
                  years after the Completion Date solicit, or endeavour to
                  solicit, the custom of any person, firm or company who was a
                  customer of any Group Company in connection with the
                  Restricted Business at any time during the period of one year
                  immediately prior to the Completion Date;

         8.1.4    except to the extent required by law and in such circumstances
                  only after prior consultation with the Purchaser not at any
                  time disclose or make public any secret or confidential
                  professional or trade information which it has acquired in
                  connection with the Restricted Business and will not use any
                  such information to the detriment of or in competition with
                  any Group Company.

8.2      Mr Zwart and Mrs. Zwart hereby acknowledges and agrees that the
         duration, extent and application of the respective restrictions in
         Clause 8.1 is reasonable in the circumstances and that such
         restrictions are separate and severable restrictions and are no greater
         than is reasonable and necessary for the protection of the interests of
         the Purchaser and Weatherford


<PAGE>   18


         but that, if any such restriction shall be adjudged (either when taken
         with others or by itself) by any court of competent jurisdiction to be
         void or unenforceable but would be valid if part of the wording thereof
         was deleted and/or the period was reduced and/or the area dealt with
         thereby was reduced, the said restriction shall apply within the
         jurisdiction of the court with such modifications as may be necessary
         to make it valid and effective.

8.3      The Purchaser and Weatherford hereby agree with and acknowledges to Mr.
         Zwart that none of the restrictions contained in Clause 8.1 shall apply
         to the Permitted Activities.

9.       ENTIRE AGREEMENT

         This Agreement, the Registration Rights Undertaking, the Tax
         Undertaking and the Disclosure Letter contain the entire agreement
         between the parties with respect to the transactions contemplated
         herein and shall supersede all prior proposals, representations,
         agreements and negotiations relating thereto, whether written, oral or
         implied, between the parties or their respective advisers or any of
         them, and no modification or alteration of this Agreement shall be
         effective unless in writing duly executed by the parties hereto.

10.      DELAY/FAILURE TO PROCEED

         No failure or delay by either party to exercise any right or power
         hereunder shall operate as a waiver thereof nor shall any partial
         exercise of such right or power preclude any other or further exercise
         thereof or the exercise of any other right.

11.      ANNOUNCEMENTS

         Neither party shall prior to Completion make any announcement of or
         concerning this Agreement unless the prior written consent of the other
         party has been obtained to the making of such announcement and the
         terms thereof have been agreed in advance by that other party provided
         that nothing in this Clause shall restrict the making of any public
         announcement required by law or by any regulatory body. Subsequent to
         the Completion, none of the Vendors shall make any announcement of or
         concerning this Agreement without the prior written consent of the
         Purchaser and Weatherford.

12.      ASSIGNATION

12.1     Subject to Clause 12.2, neither party may assign or transfer any of its
         rights or obligations under this Agreement without the prior written
         consent of the other party.

12.2     The Purchaser and Weatherford shall be entitled without the consent of
         any of the other parties hereto to assign their rights under this
         Agreement to any Affiliate or Associate of the Purchaser.

12.3     Subject to Clause 12.1, this Agreement shall be binding upon each
         party's successors, permitted assignees, executors and legal
         representatives.

13.      COSTS AND EXPENSES

13.1     Save as otherwise provided herein, the Purchaser and the Vendors shall
         bear their own respective costs and expenses in relation to the
         preparation, execution and implementation of this Agreement and the
         sale and purchase of the Sale Shares. The Purchaser shall be
         responsible for payment of any stamp duty or equivalent tax or levy in
         any other jurisdiction on this Agreement and on the transfers of the
         Sale Shares to be effected hereunder.

14.      RIGHT TO DAMAGES

<PAGE>   19

14.1     Notwithstanding any rule of law to the contrary, the Purchaser shall be
         entitled to retain the Sale Shares and to claim damages for any breach
         of any provision of this Agreement (including the Warranties and the
         Tax Undertaking) by the Warrantors.

15.      SEVERABILITY

         If any term or provision in this Agreement shall in whole or in part be
         held to any extent to be illegal or unenforceable under any enactment
         or rule of law, that term or provision or part shall to that extent be
         deemed not to form part of this Agreement and the validity and
         enforceability of the remainder of this Agreement shall not be
         affected.

16.      NOTICES

16.1     All notices, requests, demands or other communications to be given or
         made under this Agreement shall be in writing and shall be given or
         made:-

         16.1.1   in the case of the Vendors or the Warrantors to the addresses
                  set out in Part 1A or 1B of the Schedule respectively

                  With a copy to: Paull & Williamsons
                  Address:        Investment House, 6 Union Row, Aberdeen AB10
                                  1DQ
                  Attention:      Sidney Barrie/Nicholas J. Dalgarno

         16.1.2   in the case of the Purchaser, to Weatherford Eurasia Limited
                  and Weatherford International, Inc., c/o Weatherford
                  International, Inc., 515 Post Oak Blvd., Suite 600, Houston,
                  Texas 77027, marked "For the attention of Curtis W. Huff,
                  Senior Vice President and General Counsel"

                  With a copy to: Dickson & Minto W.S.
                  Address:        11 Walker Street, Edinburgh, Scotland EH3 7NE
                  Attention:      Roddy Bruce

         Provided always that either party may, by written notice to the other,
         substitute another address in the United Kingdom for the service of
         notices hereunder.

16.2     Notices may be given by being delivered to the address for the service
         of notices of the addressee (in which case the notice shall be deemed
         to be served at the time of delivery) or by being sent by recorded
         delivery mail (in which case the notice shall be deemed to be served 48
         hours after the time of posting) or by being sent by fax (in which case
         the notice shall be deemed to be served on receipt of the appropriate
         transmission receipt).

16.3     In proving service of any notice, it shall be sufficient to prove that
         delivery was made or that the envelope containing the notice was
         properly addressed and posted recorded delivery or that the fax was
         sent, as the case may be.


<PAGE>   20


17.      GOVERNING LAW

         This Agreement shall be governed by and construed in all respects in
         accordance with the laws of Scotland and the parties hereto hereby
         irrevocably prorogate the non-exclusive jurisdiction of the Scottish
         Courts: IN WITNESS WHEREOF this Agreement consisting of this and the
         preceding     pages, together with the Schedule annexed, is executed in
         duplicate at Aberdeen, Scotland on the 2nd day of September, 1999 as
         follows:-

                                       Klaas Johannes Zwart


                                       Mirjam Pauline Zwart


                                       Fraser Thomas Innes
                                                 Director for and on behalf of
                                                 P. & W. Trustees (Aberdeen)
                                                 Limited


                                       Stuart Edward Ferguson


SUBSCRIBED for and on behalf of Weatherford Eurasia Limited by one of its
directors in the presence of-

                                       Weatherford Eurasia Limited


SUBSCRIBED for and on behalf of Weatherford International, Inc. by one of its
officers in the presence of-

                                       Weatherford International, Inc.



<PAGE>   21


                                     ANNEX A

                         REGISTRATION RIGHTS UNDERTAKING


This Registration Rights Undertaking ("Agreement"), dated as of 2 September
1999, is made by and among Weatherford Eurasia Limited, a company incorporated
in England and Wales (Reg No. 2440463) and having its Registered Office at 16/17
South Quay, Great Yarmouth, Norfolk NR30 2RA (the "Purchaser"); Weatherford
International Inc, a Delaware corporation ("Company"), and those certain holders
listed on the signature page(s) hereto (individually a "Holder" and collectively
the "Holders"), who hereby agree as follows:-

1.       INTRODUCTION

         For purpose of this Agreement, the following terms shall have the
         meanings ascribed to them below.

         "Agreement"                         shall mean this Registration Rights
                                             Undertaking, as amended,
                                             supplemented or otherwise modified
                                             from time to time;

         "best lawful efforts"               shall mean the efforts that a
                                             prudent business person desirous of
                                             achieving a result would use under
                                             similar circumstances to ensure
                                             that such result is achieved as
                                             expeditiously as possible;

         "Common Stock"                      means the Company's common stock,
                                             par value $1.00 per share;

         "Completion Date"                   means the date of the closing of
                                             the transactions by the Purchaser,
                                             Company and Holders, pursuant to
                                             the Share Sale Agreement, dated of
                                             even date herewith (the "Share Sale
                                             Agreement");

         "Exchange Act"                      shall mean the United States
                                             Securities Exchange Act of 1934, as
                                             amended, or any successor
                                             legislation thereto (including the
                                             rules and regulations promulgated
                                             thereunder);

         "Registrable Securities"            shall mean (a) the Shares and (b)
                                             any Common Stock or other
                                             securities of the Company issued or
                                             issuable with respect to any of the
                                             Shares by way of stock dividend or
                                             stock split, or in connection with
                                             a combination of shares,
                                             recapitalisation, merger,
                                             consolidation or other
                                             reorganisation or otherwise. As to
                                             any particular Registrable
                                             Securities, such securities shall
                                             cease to be Registrable Securities
                                             when (i) such securities may be
                                             sold without any of the conditions
                                             or limitations of paragraphs (c),
                                             (e)(1), (e)(2) and (f) of Rule 144,
                                             whether such conditions or
                                             limitations arise from the status
                                             of the Registrable Securities as
                                             "restricted securities", (ii) such
                                             securities shall have been
                                             transferred, new certificates not
                                             bearing a legend restricting
                                             further transfer shall have been
                                             delivered by the Company and
                                             subsequent disposition of them
                                             shall not require registration or
                                             qualification of them under the

<PAGE>   22


                                             Securities Act or any state
                                             securities or blue sky law then in
                                             force, or (iii) such securities
                                             shall have ceased to be
                                             outstanding;

         "Rule 144"                          shall mean Rule 144 promulgated by
                                             the SEC under the Securities Act,
                                             or any successor to such rule;

         "Rule 145"                          shall mean Rule 145 promulgated by
                                             the SEC under the Securities Act,
                                             or any successor to such rule;

         "Rule 158"                          shall mean Rule 158 promulgated by
                                             the SEC under the Securities Act,
                                             or any successor to such rule;

         "SEC"                               shall mean the United States
                                             Securities and Exchange Commission,
                                             or any successor agency thereto;

         "Securities Act"                    shall mean the United States
                                             Securities Act of 1933, as amended,
                                             and the rules and regulations
                                             promulgated thereunder;

         "Shares"                            means the Common Stock issued to
                                             each Holder pursuant to the Share
                                             Sale Agreement.

         The words "hereof", "herein" and "hereunder" and words of similar
         import when used in this Agreement shall refer to this Agreement as a
         whole and not to any particular provision of this Agreement, and
         section, subsection, schedule and exhibit references are to this
         Agreement. Capitalised terms used in this Agreement but not defined
         herein shall have the meanings ascribed to them in the Share Sale
         Agreement.

2.       SHELF REGISTRATION

         (a)      On or prior to the date which is ten Business Days after the
                  Completion Date, the Company will file a "shelf" registration
                  statement (the "Shelf Registration") on Form S-3 (or other
                  appropriate form) pursuant to Rule 415 under the Securities
                  Act (or any similar rule that may be adopted under that Act)
                  with respect to dispositions of all of the Registrable
                  Securities for resale in a non-underwritten offering in
                  accordance with subsection (b) below. The Company will use its
                  best lawful efforts to cause the Shelf Registration to be
                  declared effective as promptly as it practicable after such
                  filing and, subject to subsections (c) and (d) below, will use
                  its best lawful efforts to keep the Shelf Registration
                  effective, supplemented and amended to the extent necessary to
                  assure that it is available for sale of the Registrable
                  Securities by the Holders thereof (and public resale of the
                  Registrable Securities covered by the Shelf Registration) and
                  that it conforms with the requirements of this Agreement, the
                  Act, and the policies, rules and regulations of the SEC, in
                  each case during the entire period (the "Shelf Effective
                  Period") beginning on the date such Shelf Registration shall
                  first be declared effective under the Securities Act (the
                  "Shelf Effective Date") and ending on the earliest to occur of
                  (i) the second anniversary of the Shelf Effective Date plus
                  such additional number of days during which Holders were not
                  entitled or legally permitted to sell the Registrable
                  Securities, (ii) such date by which all of the Registrable
                  Securities have been sold, or (iii) such date by which all of
                  the Registrable Securities may be sold without any of the
                  conditions or limitations of paragraphs (c), (e)(1), (e)(2)
                  and (f) of Rule 144, by virtue of status of the Registrable
                  Securities as "restricted securities".

         (b)      Each Holder will, within five Business Days after the
                  Completion Date, furnish the Company in writing any of the
                  information specified in Items 507 and 508 of

<PAGE>   23


                  Regulation S-K under the Act, or any other information,
                  reasonably required by the Company for use in the Shelf
                  Registration or any new prospectus or prospectus supplement or
                  post-effective amendment.

         (c)      If during the Shelf Registration Period the Company believes
                  that an event or events have occurred which, in the good faith
                  opinion of the Company, require the filing of a new prospectus
                  or prospectus supplement or post-effective amendment in order
                  that the prospectus not contain any misstatement of a material
                  fact or not omit to state a material fact required to be
                  stated therein or necessary to make the statements therein (in
                  the light of the circumstances under which they were made) not
                  misleading (a "Corrective Filing"), then the Company shall
                  promptly so notify the Holders (a "Material Event Notice"),
                  and the Company shall prepare and file with the SEC and
                  deliver to such Holders such Corrective Filing, as promptly as
                  practicable but in any event within ten days after the date of
                  Material Event Notice is given, except that the Company may
                  delay such filing for such number of days, not to exceed 75,
                  if the Company determines that (i) the public disclosure of
                  any of the information requiring the Corrective Filing is
                  impractical or would have a material adverse effect on the
                  Company, or (ii) the filing of such Corrective Filing would
                  have a significant disruptive effect on any material
                  transaction then pending. If any new prospectus or prospectus
                  supplement or post-effective amendment is required in
                  connection with the Shelf Registration other than a Corrective
                  Filing (any such filing, other than a Corrective Filing, is
                  herein called a "Routine Filing"), the Company will so notify
                  the Holders in writing (a "Filing Notice") and shall prepare
                  and file with the SEC and deliver to the Holders such Routine
                  Filing as promptly as practicable but in any event within ten
                  days after the date the Filing Notice is given. The Holders
                  may make Sales of the Registrable Securities under the Shelf
                  Registration during the Shelf Effective Period, but if the
                  Holders have received a Material Event Notice or Filing
                  Notice, Sales may not be made from the time such notice is
                  received until the date on which the Corrective Filing or
                  Routine Filing, as the case may be, has been filed or if the
                  Corrective Filing or Routine Filing is a post-effective
                  amendment, the date the post-effective amendment has become
                  effective under the Securities Act, of which the date the
                  Company shall give prompt notice to the Holders.

         (d)      Notwithstanding anything to the contrary contained in this
                  Section 2, the Company shall be permitted, on written notice
                  to the Holders, to suspend the period of sale or distribution
                  of the Shares at any time:

                  (i)    during the period beginning ten days prior to the
                         estimated date of filing, and ending on the date twenty
                         days following the effective date of, a registration
                         statement pertaining to an underwritten public offering
                         of securities for the account of the Company, provided
                         however, the Company is actively employing in good
                         faith its best lawful efforts to cause such
                         registration statement to become effective;

                  (ii)   during a period, not to exceed sixty days, in which the
                         Company is in possession of material non-public
                         information concerning it or its business and affairs,
                         the public disclosure of which, in the good faith
                         judgement of the Company as certified in a certificate
                         signed by the President or Chief Executive Officer of
                         the Company and furnished to the Holders that would
                         have a material adverse effect on the Company or in
                         which it is engaged in any material acquisition,
                         transaction or disposition transaction that would, in
                         the good faith judgement of the Company as certified in
                         a certificate signed by the President or Chief
                         Executive Officer of the Company and furnished to the
                         Holders, be significantly disrupted by a sale or
                         distribution.


<PAGE>   24


        (e)       The Company's filing of a report under the Exchange Act that
                  is incorporated by reference into the prospectus shall be
                  considered to be a Corrective Filing if such filing eliminates
                  the necessity of otherwise making a Corrective Filing.

        (f)       The Company may give such stop transfer instructions as it
                  shall deem reasonably necessary to prevent any Sale of
                  Registrable Securities under the Shelf Registration at any
                  time when the Holders are not permitted to make such a Sale,
                  but the Company will be responsible for any Losses sustained
                  by the Holders by reason of any failure by the Company to lift
                  any such instructions so as to permit the Holders to deliver
                  Registrable Securities on a timely basis.

3.      PIGGYBACK REGISTRATION

        (a)       Right to Piggyback - Whenever the Company proposes to register
                  any of its Common Stock for its own account under the
                  Securities Act (other than pursuant to a registration granted,
                  sold or to be sold exclusively to employees or directors of
                  the Company or a registration statement filed pursuant to Rule
                  145 under the Securities Act, or a shelf registration pursuant
                  to Rule 415), the Company will give prompt written notice to
                  the Holders of its intention to effect a registration and
                  will, subject to Section 3(b) below, include in such
                  registration Holder's Shares with respect to which the Company
                  has received written requests for inclusion therein within ten
                  days after the giving of notice by the Company. All
                  registrations requested pursuant to this Section 3(a) are
                  referred to herein as "Piggyback Registrations".

        (b)       Priority on Piggyback Registrations - If a Piggyback
                  Registration involves the registration of shares of Common
                  Stock offered in a firm commitment underwritten offering and
                  the managing underwriter(s) for the offering advise the
                  Company that in their opinion the number of shares of Common
                  Stock requested to be included in such registration exceeds
                  the number of Common Stock which can be sold in such offering
                  without affecting the success of the offering of the
                  securities of the Company to be offered and sold by the
                  Company for its own account, the Company will so advise the
                  Holders in writing and will include in such registration that
                  number of shares of Common Stock which the managing
                  underwriter(s) have advised the Company, in their opinion,
                  will not affect the success of the offering of the securities
                  of the Company to be offered and sold by the Company for its
                  own account, such number of shares to be included in such
                  registration in accordance with the following priorities: (i)
                  first, the Common Stock and other securities, if any, that the
                  Company proposes to sell; (ii) second, the Common Stock and
                  securities, if any, that any person (other than the Holders)
                  having piggyback registration rights granted prior to the date
                  hereof who by their terms have priority over the rights of the
                  Holders on registration, proposes to sell; and (iii) third, on
                  a pro-rata basis, (A) the Holder's Shares requested to be
                  included in such registration pursuant to Section 3(a) above
                  and (B) any other Common Stock owned by persons other than the
                  Holders having rights to participate in an underwritten
                  registered offering of Common Stock and who have notified the
                  Company of their intention to participate in such
                  registration.

        (c)       The Company may, without the consent of any Holder, withdraw
                  any registration statement referred to in Section 3(a) prior
                  to the effectiveness thereof and abandon any proposed offering
                  initiated by the Company, notwithstanding the request of a
                  Holder to participate therein in accordance with this Section
                  3, if the Company determines that such action is in the best
                  interests of the Company.

        (d)       Selection of Underwriters - If the Piggyback Registration is
                  an underwritten offering, the Company will select a managing
                  underwriter(s) of nationally recognised standing.

<PAGE>   25


4.       REGISTRATION PROCEDURES

         Whenever the Holders have requested that any Holder's Shares be
         registered, or are otherwise entitled to have such shares registered,
         pursuant to this Agreement, and subject to Sections 2(c), 2(d) and 3(b)
         above, the Company will use its best lawful efforts to effect the
         registration of such Holder's Shares and pursuant thereto the Company
         will:-

         (a)      prepare and file with the SEC under the Securities Act a
                  registration statement with respect to such Holder's shares,
                  and use its best lawful efforts to cause such registration
                  statement to become effective and to remain effective as
                  provided herein;

         (b)      prepare and file with the Commission such amendments and
                  supplements, if any, to such registration statement and the
                  prospectus used in connection therewith as may be necessary to
                  (i) keep such registration statement effective during the
                  Shelf Registration Period, if such registration statement is
                  the Shelf Registration and otherwise for a period which is the
                  earlier of (A) ninety days or (B) until the completion of the
                  distribution under such registration statement and (ii) comply
                  with the provisions of the Securities Act with respect to the
                  disposition of all securities covered by such registration
                  statement in accordance with the intended methods of
                  disposition by the sellers thereof set forth in such
                  registration statement;

         (c)      furnish to each seller of Holder's Shares such number of
                  copies of such registration statement (including exhibits),
                  each amendment and supplement thereto, the prospectus included
                  in such registration statement (including each preliminary
                  prospectus) as such seller may reasonably request in order to
                  facilitate the disposition of such shares;

         (d)      use its best lawful efforts to register or qualify such
                  Holder's Shares under such securities or blue sky laws of such
                  jurisdictions as any seller reasonably requests and do any and
                  all other acts and things which may be reasonably necessary or
                  advisable to enable such seller to consummate the disposition
                  in such jurisdictions of the Holder's Shares owned by such
                  seller, provided that the Company will not be required to (i)
                  qualify generally to do business in any jurisdiction where it
                  would not otherwise be required to qualify but for this
                  subsection, (ii) subject itself to taxation in any such
                  jurisdiction or (iii) consent to general service of process in
                  any such jurisdiction;

         (e)      notify each seller of Holder's Shares at any time when a
                  prospectus relating thereto is required to be delivered under
                  the Securities act, when it becomes aware of the happening of
                  any event as a result of which the prospectus included in such
                  registration statement (as then in effect) contains any untrue
                  statement of a material fact or omits any fact necessary to
                  make the statements therein not misleading in light of the
                  circumstances then existing, and, as promptly as practicable
                  thereafter (but subject to Sections 2(c) and 2(d) in the case
                  of the Shelf Registration), prepare in sufficient quantities a
                  supplement or amendment to such prospectus so that, as
                  thereafter delivered to the purchasers of such Holder's
                  Shares, such prospectus will not contain any untrue statement
                  of a material fact or omit to state any fact necessary to make
                  the statements therein not misleading in light of the
                  circumstances then existing;

         (f)      subject to the execution of confidentiality agreements in a
                  form satisfactory to the Company, make reasonably available
                  for inspection by any seller of Holder's Shares, the
                  Representative Counsel (as hereinafter defined) and any
                  attorney, accountant or other agent retained by any such
                  Representative Counsel, all financial and other records,
                  pertinent corporate documents and properties of the Company,
                  and cause the Company's officers, directors and employees to
                  supply all information reasonably requested by any such
                  seller. Representative Counsel, attorney, accountant or agent
                  in connection with such registration statement to the extent
                  such information is

<PAGE>   26


                  reasonably necessary to satisfy any of its obligations under
                  applicable law.

         (g)      upon receipt of any notice from the Company of the happening
                  of any event of the kind described in Section 4(e), such
                  Holder will forthwith discontinue such Holder's disposition of
                  Holder's Shares pursuant to the registration statement
                  covering such Holder's shares until such Holder's receipt of
                  the copies of the supplemented or amended prospectus
                  contemplated by Section 4(e) and, if the Company shall give
                  any such notice, the period mentioned in Section 4(b) shall be
                  extended by the number of days during the period from and
                  including the date of the giving of such notice to and
                  including the date when each seller of any Holder's Shares and
                  other shares of Common Stock covered by such registration
                  statement shall have received the copies of the supplemented
                  or amended prospects contemplated by Section 4(e);

         (h)      in connection with the preparation and review pursuant to this
                  Agreement of any registration statement or prospectus or any
                  amendments or supplements thereto, the Holders of a majority
                  of the Holder's Shares included in such registration will
                  choose one counsel ("Representative Counsel") who shall
                  participate in the registration process on their behalf;
                  co-ordinate requests by sellers of Holder's Shares for
                  information from the Company and act as liaison between such
                  Holders or their individual counsel, accountants and agents
                  and the Company; and

         (i)      provide the Holders and Representative Counsel a reasonable
                  opportunity to review and comment on any fling to be made in
                  connection with any such registration, other than documents
                  incorporated by reference in such registration statement.

         In the case of each registration, qualification or compliance effected
         by the Company pursuant to this Agreement, the Company will keep each
         Holder advised in writing as to the initiation of each registration,
         qualification and compliance and as to the completion thereof.

5.       REGISTRATION EXPENSES

         Whether or not any registration pursuant to this Agreement shall become
         effective, all expenses incident to the Company's performance of or
         compliance with this Agreement, including without limitation all
         registration and filing fees, National Association of Securities
         Dealers' fees, fees and expenses of compliance with state securities or
         blue sky laws, printing and engraving expenses and fees and
         disbursements of counsel for the company, the Representative Counsel,
         the independent certified public accountants for the Company,
         underwriters (excluding discounts and commission) and other persons
         retained by the Company (all such expenses being herein called
         "Registration Expenses"), will be borne by the Company, provided
         however, that each seller of Holder's Shares shall pay (A) any
         underwriting discounts and selling commissions applicable to Holder's
         Shares sold by the Holders and (B) all fees and disbursements of
         counsel for the Holders (other than the Representative Counsel);
         provided further, that the Company's obligation to pay the fees,
         expenses and disbursements of Representative Counsel shall be limited
         to reasonable fees, expenses and disbursements.

6.       INDEMNIFICATION

         (a)      Indemnification by the Company - The Company agrees to
                  indemnify, with respect to any registration statement filed by
                  it, to the full extent permitted by law, each Holder, its
                  officers, directors and agents and each person who controls
                  such Holder (within the meaning of the Securities act) against
                  all losses, claims, damages, liabilities and expenses
                  (including without limitation, reasonable fees and expenses of
                  legal counsel) caused by any untrue or alleged untrue
                  statement of material fact contained in any registration
                  statement, prospectus or preliminary prospectus or any
                  omission or alleged omission to state therein a material fact
                  required to be stated therein or necessary to make the
                  statements therein not misleading, except insofar as


<PAGE>   27


                  the same are caused by or contained in any information with
                  respect to such Holder furnished in writing to the Company by
                  such Holder expressly for use therein.

         (b)      Indemnification by Holders - In connection with any
                  registration statement in which a Holder is participating,
                  each such Holder will furnish to the company in writing such
                  information with respect to such Holders as the Company
                  reasonably requests for use in connection with any such
                  registration statement or prospectus and agrees to indemnify,
                  to the fullest extent permitted by law, the Company, its
                  directors and officers and each person who controls the
                  Company (within the meaning of the Securities Act) against any
                  losses, claims, damages, liabilities and expenses (including
                  without limitation, reasonable fees and expenses of legal
                  counsel) resulting from any untrue or alleged untrue statement
                  of a material fact or any omission or alleged omission of a
                  material fact required to be stated in the registration
                  statement, prospectus or preliminary prospectus or any
                  amendment thereof or supplement thereto or necessary to make
                  the statements therein not misleading, to the extent, but only
                  to the extent, that such untrue statement or omission is
                  caused by or contained in any information with respect to such
                  Holder so furnished in writing by such Holder expressly for
                  use therein and the Company does not know, at the time such
                  information is included in the registration statement,
                  prospectus, preliminary prospectus, amendment or supplement,
                  that such information is false or misleading. Notwithstanding
                  the foregoing, the liability of a Holder under this subsection
                  (b) shall be limited to an amount equal to the net proceeds
                  from the sale of the Holder's Shares.

         (c)      Failure to Deliver Prospectus - A person that would otherwise
                  be entitled to indemnification under subsection (a) or (b)
                  shall not be so entitled to the extent that the losses,
                  claims, damages, liabilities and expenses would not have
                  resulted but for such party's failure to deliver timely a copy
                  of the registration statement or prospectus or preliminary
                  prospectus or any amendments or supplements thereto that such
                  party was legally obligated to deliver and, if the indemnified
                  party is a Holder, that pertain to the Shelf Registration.

         (d)      Conduct of Indemnification Proceedings - Promptly after
                  receipt by an indemnified party under subsection (a) or (b)
                  above of notice or the commencement of any action, suit,
                  proceeding, investigation or threat thereof made in writing
                  for which such person will claim indemnification pursuant to
                  this Agreement, such indemnified party shall notify the
                  indemnifying party in writing of the commencement thereof or
                  of such involvement, as the case may be, but the omission to
                  so notify the indemnifying party shall not relieve it from any
                  liability which it may have to any indemnified party otherwise
                  than under such subsection. In any case any such action
                  referred to under subsection (a) or (b) shall be brought
                  against any indemnified party and it shall notify the
                  indemnifying party of the commencement thereof the
                  indemnifying party shall be entitled to participate therein
                  and, to the extent that it shall wish, jointly with any other
                  indemnifying party similarly notified, to assume the defence
                  thereof, with counsel reasonably satisfactory to such
                  indemnified party, and, after notice from the indemnifying
                  party to such indemnified party of its election so to assume
                  the defence thereof, the indemnifying party shall not be
                  liable to such indemnified party under such subsection for any
                  legal expenses of counsel or any other expenses, in each case
                  subsequently incurred by such indemnified party, in connection
                  with the defence thereof other than reasonable costs of
                  investigation. The indemnifying party shall promptly pay, upon
                  submission of invoices by the indemnified party, all expenses
                  incurred by the indemnified party for which indemnification is
                  provided, which payment shall be made to the person who
                  submitted the invoice or, if the indemnified party submits
                  evidence (reasonably satisfactory to the indemnifying party)
                  that the indemnified party has paid such invoice, then to the
                  indemnified party. The indemnifying party shall not be
                  required to indemnify the indemnified party with respect to
                  any amounts paid in settlement of any action, proceeding or
                  investigation

<PAGE>   28


                  entered into without the written consent of the indemnifying
                  party.

         (e)      Contribution - If the indemnification provided for in this
                  Section 6 is unavailable for reasons other than the express
                  provisions of this Agreement, then each indemnifying party
                  shall contribute to the amount paid or payable by such
                  indemnified party as a result of such losses, claims, damages
                  or liabilities (or actions in respect thereof) in such
                  proportion as is appropriate to reflect the relative fault of
                  the indemnifying party on the one hand and of the indemnified
                  party on the other in connection with the statements or
                  omissions which resulted in such loss, liability, claim,
                  damage or expense and any other relevant equitable
                  considerations. The relative fault of the indemnifying party
                  and of the indemnified party shall be determined by reference
                  to, among other things whether the untrue or alleged untrue
                  statement of a material fact or the omission to the state a
                  material fact relates to information supplied by the
                  indemnifying party or by the indemnified party and the
                  parties' relative intent, knowledge, access to information and
                  opportunity to correct or prevent such statement or omission.
                  The amount paid or payable by an indemnified party as a result
                  of the losses, claims, damages or liabilities (or actions in
                  respect thereof) referred to above in this subsection (e)
                  shall be deemed to include any legal or other expenses
                  reasonably incurred by such indemnified party in connection
                  with investigating or defending any such action or claim.

         The parties hereto agree that it would not be just and equitable if
         contribution pursuant to this Section 6 were determined by pro rata
         allocation or by any other method of allocation which does not take
         account of the equitable considerations referred to in the immediately
         preceding paragraph. No person guilty of fraudulent misrepresentation
         (within the meaning of Section 11(f) of the Securities Act) shall be
         entitled to contribution from any person who was not guilty of such
         fraudulent misrepresentation.

         If indemnification is available under this Section 6, the indemnifying
         parties shall indemnify each indemnified party to the full extent
         provided in Sections 6(a) and (b) without regard to the relative fault
         of said indemnifying party or indemnified party or any other equitable
         consideration provided for in this Section 6(e).

         (f)      Indemnification and Contribution of Underwriters - In
                  connection with any underwritten offering contemplated by this
                  Agreement, the Company will agree to customary provisions for
                  indemnification and contribution in respect of losses, claims,
                  damages, liabilities and expenses of the underwriters by the
                  Company.

         Notwithstanding any other provision of this Section 6, no Holder shall
         be required to contribute any amount or make any payments under this
         Agreement which in the aggregate exceed the net proceeds from the sale
         of the Holder's Shares.

7.       PARTICIPATION IN UNDERWRITTEN REGISTERED OFFERINGS

         No person may participate in any offering that is underwritten on a
         firm underwriting basis hereunder unless such person (a) agrees to sell
         such securities on the basis reasonably provided in any underwriting
         arrangements and (b) complete and executes all questionnaires, powers
         of attorney, indemnities, underwriting agreements, custody agreements
         and other documents reasonably required under the terms of such
         underwriting arrangements. For purposes of this Section 7, an
         arrangement, agreement or other document will be deemed to be
         reasonable if it is customarily required by the underwriter.

8.       PUBLIC SALE OR DISTRIBUTION OF SECURITY

         To the extent not inconsistent with applicable law, each Holder whose
         Registrable Securities are included (or in the case of Section 3(b),
         permitted to be included but not included) in a registration statement
         pursuant to Section 2 or 3 agrees not to effect any public sale or



<PAGE>   29


         distribution of the security being registered or a similar security of
         the Company, or any securities convertible into or exchangeable or
         exercisable for such securities, including a sale pursuant to Rule 144
         under the Act, during the period beginning ten days prior to the date
         on which the offering is expected to be made and the ninety day period
         (or such shorter period as may be required by the Company or the
         managing underwriter or underwriters with respect to any officer or
         director or shareholder of the Company) beginning on the effective date
         of a registration statement (except, in each case, as part of such
         registration), if and to the extent reasonably requested by the
         managing underwriter or underwriters in the case of an underwritten
         public offering.

9.       MISCELLANEOUS

         (a)      Termination - This Agreement and all rights and obligations
                  hereunder with respect to any Holder's Shares (except for the
                  indemnification rights provided in Section 6 hereof which
                  shall survive forever) will terminate on the first day on
                  which there are no remaining Registrable Securities, but such
                  termination shall not operate to release any party from any
                  liability or obligation that was owed at the time of such
                  termination.

         (b)      Waivers - Except as otherwise provided herein, the Company may
                  take any action herein prohibited, or omit to perform any act
                  herein required to be performed by it, only if the Company has
                  obtained the prior written consent of Holders of all of the
                  Holder's Shares.

         (c)      Amendments - Except as otherwise provided herein, this
                  Agreement may be amended only with the written consent of the
                  Company and the Holders of all of the Holder's Shares.

         (d)      Subsequent Holders of Holder's Shares - This Agreement shall
                  not be assignable by the Holders.

         (e)      Severability - Whenever possible, each provision of this
                  Agreement will be interpreted in such manner as to be
                  effective and valid under applicable law, but if any provision
                  of this Agreement is held to be prohibited by or invalid under
                  applicable law, such provision will be ineffective only to the
                  extent of such prohibition or invalidity, without invalidating
                  the remainder of this Agreement.

         (f)      Counterparts - This Agreement may be executed simultaneously
                  in two or more counterparts, any one of which need not contain
                  the signatures of more than one party, but all counterparts
                  taken together will constitute one and the same Agreement.

         (g)      Descriptive Headings - The descriptive headings of this
                  Agreement are inserted for convenience only and do not
                  constitute a part of this Agreement.

         (h)      Governing Law - All questions concerning the construction,
                  validity and interpretation of this Agreement and the exhibits
                  and schedules hereto will be governed by the internal law, and
                  not the law of conflicts, of State of Texas.

         (i)      Notices - All notices, demands or other communications to be
                  given or delivered under or by reason of the provisions of
                  this Agreement will be in writing and will be deemed to have
                  been given when delivered personally or mailed by certified or
                  registered mail, return receipt requested and postage prepaid,
                  to the recipient. Such notices, demands and other
                  communications will be sent to each of the Holders or
                  subsequent holders of the Holder's Shares as the case may be,
                  at their respective addresses on the books of the Company, and
                  to the Company at the address indicated below:


<PAGE>   30


                  If to the Company or Purchaser:-

                  c/o Weatherford International, Inc.
                  515 Port Oak Boulevard, Suite 600
                  Houston, Texas 77027
                  Telecopy: (713) 693 4484
                  Attention: Curtis W. Huff, Senior Vice-President and
                             General Counsel

                  with a copy to:

                  Andrews & Kurth, L.L.P
                  600 Travis, Suite 4200
                  Houston, Texas 77002
                  Telecopy: (713) 220 4285
                  Attention: Robert V. Jewell

                  or to such other address or to the attention of such other
                  person as the recipient party has specified by prior written
                  notice to the sending party.

         (j)      Benefit of Agreement - No person not a party to this Agreement
                  shall have rights under this Agreement as third party
                  beneficiary or otherwise.

         (k)      Entire Agreement - This Agreement is the entire agreement
                  between the Company, on the one hand, and the Holders, on the
                  other hand, with respect to registration by the Company of
                  securities issued by the Company.

         (l)      Aircraft Carrier Release - The parties recognise that
                  fundamental changes in the SEC's registration procedures may
                  be made by adopted of the SEC's Aircraft Carrier Release in
                  its current or any revised form. Should that occur, or should
                  such changes otherwise occur, the parties will amend this
                  Agreement in a reasonable manner so as to approximate as
                  closely as possible the same access of the Holders to the
                  public markets for their Registrable Securities without
                  materially increasing any burden to the company of providing
                  that access.

         (m)      Guarantee - All obligations of the company under this
                  Agreement are guaranteed by the Purchaser as a debtor bound
                  jointly and severally with the Company.

         IN WITNESS WHEREOF, the parties hereto have executed this Agreement
         effective as of the date first above written.

                                        WEATHERFORD EURASIA LIMITED

                                        WEATHERFORD INTERNATIONAL, INC.


                                        HOLDERS:

                                        Klaas Johannes Zwart

                                        Mirjam Pauline Zwart

                                        Fraser Thomas Innes

                                        P. & W. Trustees (Aberdeen) Limited

                                        Stuart Edward Ferguson

<PAGE>   31


         ANNEX B


               HYPOTHETICAL EXAMPLE OF ADJUSTMENTS FOR A SPIN-OFF


Assume the initial Floor Price is $40.00

Prior to the Protection Termination Date, Weatherford completes a spin-off of
its drilling products division ("DP"). On the date the shares of DP are
distributed to Weatherford stockholders (the "DP Distribution Date"), the market
value of the DP shares (calculated in accordance with Clause 7.3.4) is $7.50 per
share.

Beginning on the day after the DP Distribution Date, for purposes of Clause 7.3
the Floor Price applicable to Resales of Weatherford common stock shall be
$32.50 ($40.00 minus $7.50) and the Floor Price for the DP shares shall be
$7.50.

Resales of either or both securities would be entitled to the same price
protection with the newly-established Floor Prices.


<PAGE>   32


                                  THE SCHEDULE

                                     PART 4

                                   WARRANTIES

References in this Part 4 of the Schedule and in Parts 5 and 6 of the Schedule
to "the Company" shall unless the context otherwise requires be deemed where
applicable to include a reference to the Group Companies.

1        ACCOUNTS

1.1      THE ACCOUNTS


1.1.1    The Accounts were prepared in accordance with the historical cost
         convention and the bases and policies of accounting adopted in
         preparing the Accounts are the same as those adopted in preparing the
         audited accounts of the Company in respect of the three last preceding
         accounting periods.

1.1.2    The Accounts:-

1.1.2.1  give a true and fair view of the assets and liabilities of the Company
         at the Accounts Date and its profits for the financial period ended on
         that date;

1.1.2.2  comply with the requirements of the Companies Acts and other relevant
         statutes;

1.1.2.3  comply with all FRSs applicable to a United Kingdom company;

1.1.2.4  are not affected by any extraordinary, exceptional or non-recurring
         item;

1.1.2.5  properly reflect the financial and trading position of the Company as
         at their date;

1.1.2.6  make full provision or reserve for all liabilities and full disclosure
         of capital commitments of the Company outstanding at the Accounts Date;

1.1.2.7  make provision or reserve, in accordance with the principles set out in
         the notes included in the Accounts, for all Tax liable to be assessed
         on the Company or for which it may be accountable in respect of the
         period ended on the Accounts Date.

1.1.3    No amount included in the Accounts in respect of any asset, whether
         fixed or current, exceeds its purchase price or production cost (within
         the meaning of CA Schedule 4) or (in the case of current assets) its
         net realisable value on the Accounts Date.

1.2      THE MANAGEMENT ACCOUNTS

1.2.1    The Management Accounts disclose with reasonable accuracy the financial
         position of the Company as at their date.

1.3      VALUATION OF STOCK-IN-TRADE AND WORK IN PROGRESS

1.3.1    In the Accounts and in the accounts of the Company for the three
         preceding financial years the stock-in-trade and work in progress of
         the Company have been treated in accordance with SSAP 9.

<PAGE>   33



1.4      DEPRECIATION OF FIXED ASSETS

1.4.1    In the Accounts and in the accounts of the Company for the three
         preceding financial years, the fixed assets of the Company have been
         depreciated in accordance with SSAP 12.

1.5      BOOK DEBTS

1.5.1    No part of the amounts included in the Management Accounts, or
         subsequently recorded in the books of the Company, as owing by any
         debtor is overdue by more than twelve weeks, or has been released on
         terms that any debtor pays less than the full book value of his debt or
         has been written off or has proved to any extent to be irrecoverable or
         is now regarded by the Company as irrecoverable in whole or in part.

1.6      BOOKS AND RECORDS

1.6.1    All the accounts, books, ledgers, financial and other records, of
         whatsoever kind, of the Company:

1.6.1.1  are in its possession;

1.6.1.2  have been properly kept and completed; and

1.6.1.3  do not contain any material inaccuracies or discrepancies.

2        CORPORATE MATTERS

2.1      DIRECTORS

2.1.1    The only directors of the Company are the persons whose names are
         listed in relation to the Company in Part 2 of the Schedule.

2.2      SUBSIDIARIES, ASSOCIATIONS AND BRANCHES

2.2.1    The Company:

2.2.1.1  is not, and has never been, the holder or beneficial owner of nor has
         it agreed to acquire any share or loan capital of any company other
         than the Subsidiaries and the Dormant Subsidiaries (whether
         incorporated in the United Kingdom or elsewhere);

2.2.1.2  has not outside the United Kingdom any branch, agency or place of
         business, or any permanent establishment (as that expression is defined
         in the relevant double taxation relief order current at the date of
         this Agreement).

2.2.2    The Dormant Subsidiaries have no obligations, commitments or
         liabilities (contingent or otherwise).

2.3      OPTIONS OVER THE COMPANY'S CAPITAL

2.3.1    Except as required by this Agreement, there are no agreements or
         arrangements in force which provide for the present or future issue,
         allotment or transfer of, or grant to any person the right (whether
         conditional or otherwise) to call for the issue, allotment or transfer
         of, any share or loan capital of the Company (including any option or
         right of pre-emption or conversion).


<PAGE>   34



2.4      NEW ISSUES OF CAPITAL

2.4.1    Other than pursuant to the exercise of options under the Share Option
         Scheme as disclosed in the Disclosure Letter, no share or loan capital
         has been issued or allotted, or agreed to be issued or allotted, by the
         Company since the Accounts Date.

2.5      COMMISSIONS

2.5.1    No one is entitled to receive from the Company any finder's fee,
         brokerage or other commission in connection with the sale and purchase
         of the Sale Shares under this Agreement.

2.6      MEMORANDUM AND ARTICLES OF ASSOCIATION, STATUTORY BOOKS AND RESOLUTIONS

2.6.1    The copy of the memorandum and articles of association of the Company
         delivered to the Purchaser's Solicitors is accurate and complete in all
         respects.

2.6.2    The register of members and other statutory books of the Company have
         been properly kept and contain an up to date record of the matters with
         which they should deal.

2.6.3    No notice or allegation that any of the foregoing is incorrect or
         should be rectified has been received.

2.7      DOCUMENTS FILED

2.7.1    All returns, particulars, resolutions and documents required by the
         Companies Acts or any other legislation to be filed with the Registrar
         of Companies, or any other authority, in respect of the Company have
         been duly filed.

2.8      POSSESSION OF DOCUMENTS

2.8.1    All title deeds relating to the assets of the Company, and an executed
         copy of all agreements to which the Company is a party, and the
         original copies of all other documents which are owned by or which
         ought to be in the possession of the Company are in its possession.

2.9      INVESTIGATIONS

2.9.1    As far as the Warrantors are aware, no investigations or enquiries by,
         or on behalf of, any governmental or other body in respect of the
         affairs of the Company are pending or taking place or have occurred.

3        FINANCE

3.1      DIVIDENDS AND DISTRIBUTIONS


3.1.1    Since the Accounts Date the Company has not, nor is it treated as
         having, declared or paid any dividend or other distribution (as defined
         in ICTA Part VI Chapter II as extended by ICTA Section 418).

3.1.2    All dividends or distributions declared, made or paid by the Company
         have been declared, made or paid in accordance with its articles of
         association and the applicable provisions of the Companies Acts.

<PAGE>   35


3.2      BANK AND OTHER BORROWINGS

3.2.1    Details of all limits on the Company's bank overdraft facilities have
         been supplied to the Purchaser in the Disclosure Letter.

3.2.2    The total amount borrowed by the Company from each of its bankers does
         not exceed its agreed facilities.

3.2.3    The Company has not outstanding, nor has it agreed to create or issue,
         any loan capital; nor has it factored any of its debts, or engaged in
         financing of a type which would not require to be shown or reflected in
         the Accounts, or borrowed any money which it has not repaid, save for
         borrowings not exceeding the amounts shown in the Accounts.

3.2.4    The Company has not received notice from any lenders of money,
         requiring repayment or intimating the enforcement of any security; and
         there are no circumstances known to the Warrantors which, so far as
         they are aware, are likely to give rise to any such notice.

3.3      LOANS BY AND DEBTS DUE TO THE COMPANY

3.3.1    The Company has not lent any money which has not been repaid to it, or
         owns the benefit of any debt (whether or not due for payment), other
         than trade debts which have arisen in the ordinary course of its
         business.

3.4      LIABILITIES

3.4.1    There are no material liabilities of the Company known to the
         Warrantors which are outstanding other than those liabilities disclosed
         in the Management Accounts or incurred in the ordinary and proper
         course of trading since the Management Accounts Date.

3.4.2    There has been no exercise or purported exercise of, or claim for, any
         charge, lien, encumbrance or equity over any of the fixed assets of the
         Company; and there is no dispute directly or indirectly relating to any
         of its fixed assets.

3.5      BANK ACCOUNTS

3.5.1    A complete and accurate statement of the bank accounts of the Company
         as at 1 September 1999 has been supplied to the Purchaser and is
         attached to the Disclosure Letter.

3.6      GOVERNMENT GRANTS

3.6.1    Full details of all grants, subsidies or financial assistance applied
         for or received by the Company within the five years preceding the
         Completion Date from any governmental department or agency or any local
         or other authority have been supplied to the Purchaser in the
         Disclosure Letter.

4        TRADING

4.1      CHANGES SINCE ACCOUNTS DATE

4.1.1    Since the Accounts Date the business of the Company has been continued
         in the ordinary and normal course.

4.2      EFFECT OF SALE OF SALE SHARES


<PAGE>   36


4.2.1    Compliance with the terms of this Agreement does not and will not:

4.2.1.1  result in the breach of, or constitute a default under any agreement or
         document to which the Company is a party, or any provision of the
         memorandum or articles of association of the Company or any
         encumbrance, lease, contract, order, judgement, award, injunction,
         interdict, regulation or other restriction or obligation of any kind by
         which or to which any asset of the Company is bound or subject;

4.2.1.2  relieve any person from any contractual obligation to the Company or
         enable any person to determine any such obligation or any right or
         benefit enjoyed by the Company, or to exercise any right under an
         agreement with or otherwise in respect of the Company;

4.2.1.3  result in the creation, imposition, crystallisation or enforcement of
         any encumbrance on any of the assets of the Company;

4.2.1.4  result in any present or future indebtedness of the Company becoming
         due and payable or capable of being declared due and payable prior to
         its stated maturity.

4.2.1.7  so far as the Warrantors are aware, (but without any enquiry) cause any
         director or senior employee of the Company to leave employment.

4.2.1.8  by reason only of Completion entitle any third party to terminate any
         contract, licence or other agreement to which any of the Group
         Companies is a party.

4.3      JOINT VENTURES AND PARTNERSHIP

4.3.1    The Company is not, nor has it agreed to become, a member of any joint
         venture, consortium, partnership or other unincorporated association;
         and the Company is not, nor has it agreed to become, a party to any
         agreement or arrangement for sharing commissions or other income.

4.4      AGREEMENTS RELATING TO THE MANAGEMENT AND BUSINESS

4.4.1    There are no agreements, arrangements or understandings between the
         Company and any person who is a shareholder or the beneficial owner of
         any interest in it, or in any company in which the Company is
         interested, or any Associate of any such person, relating to the
         management of the Company's business, the appointment or removal of
         directors of the Company, the ownership or transfer of ownership or the
         letting of any of the assets of the Company, the provision, supply or
         purchase of finance goods, services or other facilities to, by or from
         the Company, or in any other respect relating to the Company's affairs.

4.5      AGENCY AGREEMENTS AND AGREEMENTS RESTRICTING BUSINESS

4.5.1    The Company is not a party to any agency, distributorship, marketing,
         purchasing, manufacturing or licensing agreement or arrangement, or any
         restrictive trading or other agreement or arrangement pursuant to which
         any part of its business is carried on, or which in any way restricts
         its freedom to carry on the whole or any part of its business in the
         United Kingdom or elsewhere in such manner as it thinks fit.

4.5.2    The Company is not bound by any undertaking or assurances given to any
         court or governmental agency.

4.6      LITIGATION, DISPUTES AND WINDING UP


<PAGE>   37


4.6.1    The Company is not engaged in any litigation or arbitration proceedings
         as pursuer or defender, plaintiff or defendant; there are no
         proceedings pending or threatened either by or against the Company and
         there are no circumstances known to the Warrantors which are likely to
         give rise to any litigation or arbitration.

4.6.2    There is no dispute with any revenue or other official, department in
         the United Kingdom or elsewhere, in relation to the affairs of the
         Company and there are no facts known to the Warrantors which may give
         rise to any dispute.

4.6.3    There are no claims pending or threatened against the Company by an
         employee or workman or third party, in respect of any accident or
         injury, which are not fully covered by insurance and there are no
         circumstances known to the Warrantors likely to give rise to any such
         claims.

4.6.4    No order has been made or resolution passed for the winding up of the
         Company nor has any petition been presented for that purpose; no
         diligence, arrestment, distress, execution or other process has been
         levied in respect of the Company which remains undischarged and as far
         as the Warrantors are aware there is no unfulfilled or unsatisfied
         judgement or court order outstanding against the Company.

4.6.5    As far as the Warrantors are aware (but without any enquiry) no steps
         have been taken by any third party to appoint a receiver, administrator
         or judicial factor to the Company or in respect of any of its assets.

4.7      COMPLIANCE WITH STATUTES

4.7.1    The Company has conducted and is conducting its business in all
         material respects in accordance with all applicable laws and
         regulations whether of the United Kingdom or elsewhere.

4.7.2    The Company does not carry on (nor has it, at any time when not an
         authorised person under Chapter III, Financial Services Act 1986,
         carried on) investment business in the United Kingdom within the
         meaning of the Financial Services Act 1986, Section 1.

4.8      DOCUMENTS STAMPED

4.8.1    All documents which affect the right, title or interest of the Company
         in or to any of its property, undertaking or assets, or to which the
         Company is a party and which attract stamp duty have been duly stamped.

4.9      BUSINESS NAMES

4.9.1    The Company does not use, and has never used, a name for any purpose
         other than its full corporate name.

4.10     POWERS OF ATTORNEY

4.10.1   No power of attorney given by the Company is in force.

4.11     LICENCES AND CONSENTS

4.11.1   The Company has obtained all necessary material licences and consents
         for the proper carrying on of its business and all such licences and
         consents are valid and subsisting; the Company has at all material
         times complied with all terms and conditions imposed by or otherwise
         applicable to such licences and consents.


<PAGE>   38



4.12     SUBSISTING CONTRACTS

4.12.1   Particulars of all subsisting agreements or arrangements which are or
         may be material in relation to the business or affairs of the Company
         have been disclosed to the Purchaser.

4.12.2   Particulars of all tenders, offers, bids, work specifications,
         pre-qualifications and the like issued by or on behalf of the Company
         and which are currently outstanding (and whether or not accepted) have
         been disclosed to the Purchaser.

4.12.3   The Company is not in breach of any material agreements or arrangements
         to which it is a party.

4.13     PURCHASES AND SALES FROM OR TO ONE PARTY

4.13.1   Neither more than 10% of the aggregate amount of all the purchases, nor
         more than 10% of the aggregate amount of all the sales, of the Company
         are obtained or made from or to the same supplier or customer
         (including any person in any way connected with such supplier or
         customer).

4.14     GUARANTEES AND INDEMNITIES

4.14.1   No guarantee, or agreement for indemnity or for suretyship given by or
         for the accommodation of the Company is outstanding.

5        EMPLOYMENT

5.1      EMPLOYEES AND TERMS OF EMPLOYMENT

5.1.1    Full particulars of the identities, dates of commencement of
         employment, or appointment to office, and terms and conditions of
         employment of all the employees and officers of the Company, including
         without limitation profit sharing, commission, bonus and discretionary
         bonus arrangements, motor car entitlement, share option entitlement,
         entitlements to life, disability and/or accident insurance cover,
         private medical cover, staff discounts, housing allowance and any and
         all other perquisites of office or employment have been delivered to
         the Purchaser together with details of all bonus payments, profit
         sharing or commission payments, pension payments and any other
         discretionary payments made or committed to be made by the Company
         since the Accounts Date.

5.1.2    There are no agreements or arrangements (whether or not legally
         binding) between the Company and any trade union or other body
         representing employees.

5.1.3    No contract of service exists between the Company and a director or
         employee in relation to which any relevant requirements of CA Section
         319 have not been fulfilled.

5.2      TERMINATION OF CONTRACTS OF EMPLOYMENT

5.2.1    All subsisting contracts of service to which the Company is a party are
         determinable at any time on 3 months' notice or less without
         compensation (other than compensation in accordance with the Employment
         Rights Act 1996).

5.2.2    No executive of the Company, who is in receipt of remuneration in
         excess of (pound)40,000 per annum, and no officer of the Company has
         given or received notice terminating his employment and except as
         expressly contemplated in this Agreement, no such executive or


<PAGE>   39


         officer will be entitled to give such notice as a result of this
         Agreement or has left the employment of the Company within the 6 months
         preceding Completion.

5.3      INDUSTRIAL DISPUTES AND NEGOTIATIONS

5.3.1    The Company is not involved in any industrial dispute with any of its
         employees and there are no facts known to the Warrantors which might
         reasonably be expected to result in such an industrial dispute.

5.4      INDUSTRIAL AGREEMENTS

5.4.1    The Company has not entered into any recognition agreement with a trade
         union.

5.5      REDUNDANCIES

5.5.1    No employee will become redundant and be entitled to a redundancy
         payment as a result of this Agreement.

5.6      PENSIONS

5.6.1    Apart from the pension scheme referred to in Part 7 of the Schedule
         ("the Scheme") the Company is not under any liability or obligation or
         a party to any ex-gratia arrangement or promise to pay pensions,
         gratuities, superannuation allowances or the like, or otherwise to
         provide 'relevant benefits' within the meaning of ICTA Section 612 to
         or for any of its past or present officers or employees or their
         dependants; and there are no retirement benefit, pension or death
         benefit or similar schemes or arrangements in relation to or binding on
         the Company or to which the Company contributes.

5.6.2    All payments required to be made by the Company in respect of the
         Scheme have been made.

5.6.3    Details of the Scheme have been provided to the Purchaser in the
         Disclosure Letter.

6        ASSETS

6.1      OWNERSHIP OF ASSETS

6.1.1    At the Accounts Date the Company owned and had good title to all the
         assets included in the Accounts and (except for current assets
         subsequently sold or realised in the ordinary course of business) still
         owns and has good title to all assets included in the Accounts and to
         all assets acquired since the Accounts Date.

6.1.2    Other than the Bank's Security the Company has not created, granted or
         agreed to create or grant any security interest or other encumbrance in
         respect of any of the fixed assets included in the Accounts or acquired
         or agreed to be acquired since the Accounts Date.

6.1.3    Except as disclosed in the Accounts, none of the property, assets,
         undertaking, goodwill or uncalled capital of the Company is subject to,
         and the Company has not agreed to grant, any option, charge, lien or
         encumbrance, or right of pre-emption.

6.2      INSURANCE

6.2.1    All the stock-in-trade and the assets and undertakings of the Company
         of an insurable nature are, and have at all material times been,
         insured in amounts representing their full


<PAGE>   40


         replacement or reinstatement value against fire and other risks
         normally insured against by persons carrying on the same business as
         that carried on by it.

6.2.2    No claim is outstanding or may be made under any of the policies of
         insurance of the Company and as far as the Warrantors are aware no
         circumstances exist which are likely to give rise to such a claim.

6.2.3    All liabilities of the Company (including without limitation employers
         liability, public liability and product liability) normally insured
         against by persons carrying on the same business as the Company are
         adequately insured.

6.2.4    The Company has not failed to disclose any material fact to any of its
         insurers or so far as the Warrantors are aware done or omitted to do
         any act or thing which may entitle the Company's insurers to avoid
         liability under any of the Company's policies of insurance.

6.3      INTELLECTUAL PROPERTY RIGHTS AND TRADE SECRETS

6.3.1    All Intellectual Property Rights used or required by the Company in
         connection with its business are in full force and effect and are
         vested in and beneficially owned by it.

6.3.2    The Company is the sole beneficial owner of the Intellectual Property
         Rights listed in Part 8 of the Schedule and (where registration is
         possible) the Company has been and is registered as proprietor.

6.3.3    No right or licence has been granted to any person by the Company to
         use in any manner or to do anything which would or might otherwise
         infringe any of the Intellectual Property Rights referred to in Clauses
         6.3.1 and 6.3.2 above; no act has been done or omission knowingly
         permitted by the Company whereby they or any of them have ceased or
         might cease to be valid and enforceable.

6.3.4    The business of the Company (and of any licensee under a licence
         granted by the Company) as now carried on and the use by the Company of
         the Intellectual Property Rights referred to in Clauses 6.3.1 and 6.3.2
         above does not, infringe any Intellectual Property Right of any other
         person or give rise to a liability to pay compensation pursuant to the
         Patents Act 1977 Sections 40 and 41 and no such infringement has
         occurred in the past.

6.3.5    Nothing has been done by the Company which would enable any licensee
         under a licence of Intellectual Property Rights granted by or to the
         Company to be terminated or which in any way constitutes a breach of
         the terms of any licence.

6.3.6    The Company has received no notification by or on behalf of any third
         party challenging the use or registration by the Company of any of the
         Intellectual Property rights used or required by the Company in
         connection with its business.

6.3.7    The Company has duly paid all registration and/or renewal fees in
         respect of all Intellectual Property Rights owned by it for which fees
         are payable.

6.3.8    None of the Vendors nor any of the past or present employees of the
         Company has any rights or interests in any of the Intellectual Property
         Rights referred to in Clause 6.3.1 or 6.3.2 above.

6.3.9    The Shell Licence is in full force and effect and by reason only of
         Completion it cannot be terminated or changed without the consent of
         the Company.

<PAGE>   41


6.3.10   The Company does not require any additional licences or rights from
         Shell or its Affiliates to conduct its business or to manufacture, sell
         or rent the expandable slotted tubular products currently manufactured
         and sold by the Company.

6.3.11   No third parties have any rights in and to the Intellectual Property
         listed in Part 8 of the Schedule.

7        SCOTTISH PROPERTIES

7.1      TITLE

7.1.1    The Scottish Properties comprise all the properties currently owned,
         occupied or otherwise used by the Company in Scotland in connection
         with its business.

7.1.2    The Company is in occupation of and has received no challenge to its
         occupancy of the Scottish Properties and the Company has not disponed
         its heritable interest in or assigned or sub-leased its leasehold
         interest in the Scottish Properties nor has it entered into any other
         agreement whereby a third party has been given or is entitled to
         occupation of the Scottish Properties.

7.1.3    There are no options or rights of pre-emption or similar rights in
         favour of third parties affecting the Scottish Properties which may be
         binding on the Company. The Company has not agreed to dispose of the
         Scottish Properties or any part thereof or interest in and has not
         agreed to acquire the whole or any part of any other land or buildings
         or any interest (including as tenant or licensee), option, right or
         right of pre-emption in any other land.

7.1.4    No Group Company has any outstanding or contingent liability in respect
         of any lease or licence other than in respect of the Leasehold
         Properties and the Non-Scottish Properties.

7.1.5    As far as the Warrantors are aware all title conditions and burdens
         affecting the Heritable Properties have been implemented or if of a
         continuing nature have been complied with to date.

7.1.6    No deeds which are capable of being recorded in the Register of Sasines
         or given effect to in the Land Register and no floating charge,
         debenture or other security document (other than the Bank's Security)
         in respect of or affecting the Scottish Properties have been granted by
         the Company.

7.1.7    The Scottish Properties are not held in trust for any other party.

7.2      ENCUMBRANCES

7.2.1    The Scottish Properties are not subject to any outgoings other than
         business rates, water rates and insurance premiums and other normal
         outgoings incurred in relation to commercial property in Scotland and
         in the case of the Leasehold Properties rent and service charges all of
         which have been paid to date.

7.3      DISPUTES ETC

7.3.1    There are no current disputes between the landlords and the tenants in
         respect of the Leasehold Properties nor between the Company and any
         neighbouring owner or occupier with respect to any matter including
         without limitation any dispute in relation to boundary walls and fences
         or with respect to any servitudes, easements, rights over or means of
         access to, any of the Scottish Properties nor in so far as the
         Warrantors are aware are there any impending


<PAGE>   42


         actions, claim or demands between the Company and any third party
         affecting the Scottish Properties.

7.4      INSURANCE, RATES ETC.

7.4.1    The information provided to the Purchaser with respect to the insurance
         policies is complete and accurate in all material respects.

7.4.2    The rates applicable to the Scottish Properties are those shown on the
         Valuation Roll and there are no appeals or reassessments pending in
         that respect.

7.5      LEASEHOLD PROPERTIES

7.5.1    The Company has not received any notice that it is in breach of any of
         the leases under which the Leasehold Properties are held.

7.5.2    There are no rent reviews in progress under the leases of the Leasehold
         Properties and no rent reviews have been agreed or determined otherwise
         than on the basis of open market value.

7.5.3    As far as the Warrantors are aware the Company has not received any
         notice requiring it to remedy any disrepair, wants of repair or
         dilapidations in respect of, or maintenance or renewals to the
         buildings and other structures comprising the Leasehold Properties.

7.5.4    No application for landlords' consent or approval has been refused or
         is outstanding and landlords' consent has been granted in respect of
         each alteration, improvement or extension of the Leasehold Properties,
         all of which are to be disregarded at rent review.

7.5.5    As far as the Warrantors are aware the Company has and is complying
         with all of the obligations of the tenants in respect of the Leasehold
         Properties and the Warrantors are not aware of any breach of any
         obligations of the landlords in respect of the Leasehold Properties.

7.5.6    The leasehold documents exhibited to the Purchaser include all leases,
         licences, minutes of variation, back letters and other documentation
         relative to the Company's occupation of the Leasehold Properties.

7.6      ENVIRONMENTAL MATTERS

7.6.1    References in this Clause to:

7.6.1.1  "the environment" includes references to land, air and water;

7.6.1.2  "Environmental Laws" means any law relating to or pertaining to the
         environment and/or the health and safety of the public and/or workers
         and/or the workplace and/or the generation, transportation, storage,
         treatment or disposal of materials of environmental concern which are
         in force as at the date of Completion and includes but is not limited
         to references to common law, nuisance, the Public Health Acts, the
         Control of Pollution Act 1974, the Rivers (Prevention of Pollution)
         (Scotland) Act 1951 and 1965, the Water (Scotland) Act 1980, the Health
         and Safety at Work, Etc. Act 1974, the Food & Environment Act 1985, the
         Water Act 1989, the Environmental Protection Act 1990, the Environment
         Act 1995 and the Planning (Hazardous Substances) (Scotland) Act 1997
         and all amendments thereto and re-enactments thereof and all
         regulations made thereunder and any subsidiary legislation relating
         thereto and all codes of practice issued thereunder or in connection
         therewith and all EC Directives;


<PAGE>   43


7.6.1.3  "consent" and "licence" mean any consent, approval, authorisation,
         exemption, licence, order, permission, recording or registration under
         Environmental Health Laws (and references to obtaining consents and/or
         licences shall be construed accordingly);

7.6.2    The existing uses of the Scottish Properties have been and are being
         carried out in compliance in all material respects with all
         Environmental Laws and all demands from any body or authority charged
         with overseeing the same have been complied with in full.

7.6.3    All consents and licences with regard to the Scottish Properties or the
         use of the Scottish Properties required under the Environmental Laws
         are subsisting at the date hereof.

7.6.4    There is no outstanding notification, official or otherwise, nor has
         any such notification been received under Environmental Laws requiring
         the Group Companies to take or omit to take any action nor have any
         notices been served on any of the Scottish Properties pursuant to
         Environmental Laws and relating to any breach of such Environmental
         Laws or any conditions contained in any licences held and as far as the
         Warrantors are aware, there are no proposals pending to serve such a
         notice.

7.6.5    The Group Companies have not received nor are the Warrantors aware of
         any proposals to serve on it notice from the Secretary of State or any
         local or central governmental body or any authority in respect of any
         matter or substance stored at any of the Scottish Properties in
         connection with the location, construction or maintenance of storage
         facilities or any works precautions or other steps required to be
         carried out thereto.

7.6.6    No prosecutions have been brought against the Group Companies in
         connection with any breach of Environmental Laws relating to the use of
         any of the Scottish Properties both past and present.

7.6.7    The Group Companies have not received from any of their employees or
         any persons in surrounding or neighbouring properties any notice of
         complaint in respect of any of the businesses carried out at any of the
         Scottish Properties in connection with any substance emitted from or
         allowed to accumulate thereon.

7.6.8    As far as the Warrantors are aware, no works have been carried out on
         the Scottish Properties under any Environmental Laws by any statutory
         authority in respect of which such authority is entitled to recover
         costs and the Group Companies are not under any investigation or
         enquiry in relation to environmental matters and the conduct of its
         business at any of the Scottish Properties by any competent authority.

7.7      PLANNING LEGISLATION AND BUILDING CONTROL

7.7.1    No planning permission in respect of the Scottish Properties has been
         revoked and there is no application for planning permission awaiting
         determination or at appeal.

7.7.2    As far as the Warrantors are aware none of the following has in the
         past affected the Scottish Properties: structural defects, flooding,
         mining activities, subsidence, rising damp, wet or dry rot or any
         infestation.

8.       NON-SCOTTISH PROPERTIES

8.1      In this paragraph 8 of Part 4 of the Schedule, a reference to "the
         Company" shall, unless the context otherwise requires, be deemed to
         include a reference to the UK Subsidiaries and Petroline L.L.C.


<PAGE>   44


         GENERAL

8.2      The Non-Scottish Properties comprise all the properties owned, occupied
         or otherwise used by the Company outwith Scotland in connection with
         its business.

8.3      The Group Companies are in occupation of and have received no challenge
         to their occupancy of the Non-Scottish Properties and the Company has
         not disposed of or assigned or sub-leased its interest in the
         Non-Scottish Properties nor has it entered into any agreement to do so.

9.       YEAR 2000

         All computer hardware, software, embedded chips and related systems of
         the Company are Year 2000 Compliant (as such term is defined in the
         British Standards Institute document PD 2000 part 1).



<PAGE>   45


                                  THE SCHEDULE

                                     PART 5

                                   LIMITATIONS


(1)      The liability of the Warrantors in respect of the Warranties and the
         Tax Undertaking shall be limited as provided in this Part of the
         Schedule.

(2)      The liability of the Warrantors under, arising out of, or in connection
         with the Warranties and the Tax Undertaking shall be restricted in each
         of the following respects:-

         (a)      the liability of the Warrantors (i) in respect of the
                  Warranties shall cease on the date which is twelve months
                  after the Completion Date except in respect of the Title
                  Warranties, which shall cease on the date which is five years
                  after the Completion Date, and (ii) in the case of any claim
                  under the Tax Undertaking shall cease, on the date which is
                  seven years after the Completion Date except in either case in
                  respect of any bona fide claim intimated in writing (together
                  with reasonable details of the facts and circumstances giving
                  rise to such claim and a reasonable estimate of the aggregate
                  liability of the Warrantors in respect of such claim) by
                  notice to each of the Warrantors on or before the relevant
                  date provided always that legal proceedings in respect of such
                  claim (in the absence of settlement or discharge of such
                  claim) shall have commenced within twelve months after such
                  written notice is first served on the Warrantors;

         (b)      the liability of each of the Warrantors in respect of any
                  claim under the Warranties and in aggregate and/or the Tax
                  Undertaking shall not exceed an amount equal to the Relevant
                  Proportion of such claim(s);

         (c)      no claim shall be made against any of the Warrantors under the
                  Warranties and/or the Tax Undertaking unless and until the
                  amount thereof or the aggregate amount of all such claims
                  exceeds (pound)500,000 (excluding interest and costs) provided
                  that, the Warrantors shall be liable only for the excess above
                  (pound)500,000;

         (d)      the aggregate liability of the Warrantors for damages for
                  breach of the Warranties and/or the Tax Undertaking shall be
                  limited to (pound)30,000,000 (excluding interest and costs)
                  (other than the Title Warranties, which shall be limited to
                  the Consideration received by the Warrantor) provided that the
                  maximum aggregate liability of each Warrantor shall not exceed
                  his Relevant Proportion of the relevant limit;

         (e)      to the extent that the subject matter of a claim under any of
                  the Warranties is capable of remedy by the Warrantors, the
                  Purchaser shall, at the request of the Warrantors (or any of
                  them), afford to such Warrantor(s) such reasonable
                  opportunities as are requested by the Warrantors to remedy the
                  subject matter of the claim;

         (f)      the Warrantors shall not be liable under the Warranties:-

                  (i)    in respect of any matter or liability to the extent
                         that specific provision (including, for the avoidance
                         of doubt, provision for specific matters contained in
                         any deferred tax provision and any obsolete stock
                         provision), accrual, or reserve or note in respect
                         thereof was made in the Accounts or the Management
                         Accounts;

                  (ii)   to the extent that any provision, accrual, reserve or
                         note made as aforesaid proves insufficient only by
                         reason of any increase in rates of Tax or reduction of
                         allowances or reliefs made with retrospective effect
                         after the date of this Agreement;


<PAGE>   46


                  (iii)    to the extent that such liability would not have
                           arisen but for any alteration or enactment made after
                           the date of this agreement of any Act of Parliament
                           or statutory instrument or any change in
                           interpretation of any law following the Completion
                           Date or any change in administrative practice of any
                           government, governmental department, agency or
                           regulatory body or any increase in the rates of Tax
                           or alteration in methods of applying or calculating
                           Tax or any imposition of Tax not in effect at the
                           date of this Agreement;

                  (iv)     to the extent that such liability would not have
                           arisen but for a voluntary act or failure to act,
                           omission or transaction on the part of by the
                           Purchaser and/or (at the instance of the Purchaser)
                           by the Company occurring after the Completion Date
                           and which the Purchaser was aware would be likely to
                           give rise to a liability on the Warrantors under the
                           Warranties. For the purpose of this sub-clause an act
                           will not be treated as voluntary if it is in the
                           ordinary course of business and/or if it is carried
                           out pursuant to a legal obligation which existed on
                           or before Completion;

                  (v)      in respect of any liability which is contingent only,
                           unless and until such liability becomes an actual
                           liability and becomes due and payable provided,
                           however, a claim may be intimated pending
                           determination of such liability;

                  (vi)     to the extent that such liability arises as a result
                           of the cessation of any business of any Group Company
                           after the Completion Date;

                  (vii)    in respect of any matter contained in this Agreement
                           to the extent that it is fairly disclosed in the
                           Disclosure Letter.

(3)      Without prejudice to the Purchaser's obligations under paragraph (5)
         below, the Purchaser shall use its reasonable endeavours to consult
         with the Warrantors and consider any representations of the Warrantors
         following such consultation prior to any admission of liability,
         compromise or settlement by the Purchaser or the Company in respect of
         any matter which has given or may give rise to a claim under the
         Warranties.

(4)      The Purchaser shall notify the Warrantors of any matter in respect of
         which a claim lies or may lie against the Warrantors under the
         Warranties and/or the Tax Undertaking as soon as practicable after
         becoming aware of such matter and of the fact that such claim lies or
         may lie against the Warrantors and thereafter the Purchaser shall keep
         the Warrantors reasonably and properly informed regarding such matter.
         The Purchaser shall provide the Warrantors and to their professional
         advisers such reasonable assistance as may be requested by the
         Warrantors including reasonable access to all relevant books, records,
         documents and other information and personnel for the purpose of
         evaluating any claim and if the claim in question is in connection with
         a claim made by, or a liability of, a third party, the Purchaser shall
         take such action as the Warrantors may reasonably request to avoid,
         dispute, resist, appeal or compromise or defend the relevant claim or
         liability provided always that such one or more of the Warrantors
         making such request shall have first agreed to indemnify and to free
         and relieve and hold harmless the Purchaser from and against any loss,
         cost, expenses or liability reasonably incurred by it as a result of
         such action being taken.

(5)      The Purchaser shall take all reasonable steps (and so far as within its
         power shall procure that such steps are taken) to mitigate any loss or
         liability which might give rise to a claim against the Warrantors under
         this Agreement and, without prejudice to the generality of the
         foregoing, procure that all reasonable endeavours are used to recover
         any amounts due from third parties where, in relation to any matter
         which may give rise to a claim under this Agreement, the Purchaser or
         the Company has or may have a claim against such third parties.
         Provided that nothing in this sub-clause will oblige the Purchaser to
         delay pursuing any claim against the Warrantors pending the outcome of
         any claim against any third party.


<PAGE>   47


(6)      In the event that the Warrantors have made a payment ("the claim
         payment") pursuant to a claim under the Warranties and the Purchaser or
         the Company shall receive from any source a refund or payment in
         respect of the matter of which such claim was made and such claim
         payment shall result in the Purchaser recovering more than the damage
         or loss arising from the matter of which the claim was made, the
         Purchaser shall forthwith repay to the relevant Warrantors by whom the
         claim payment was made a sum corresponding to the lesser of (a) the
         amount of such refund or payment, (b) the amount of the claim payment
         in either case net of any Tax and expenses, and (c) the amount of the
         recovery in excess of the damage or loss arising from the matter of
         which the claim was made.

(7)      Without prejudice to the Purchaser's obligations under paragraph (5)
         above, where any claim against the Warrantors under the Warranties has
         been settled such that the Purchaser has received a full recovery for
         damage or loss for such matter and the Purchaser has a right of
         recovery or reimbursement (in whole or in part) against any other
         person in respect of the subject matter of such claim, the Purchaser
         shall at the expense of the Warrantors assign or procure to be assigned
         to the Warrantors, for no consideration, the benefit of such right up
         to the amount paid by the Warrantors to the Purchaser in settlement of
         such claim.

(8)      Payment of any claim under any provision of this Agreement shall pro
         tanto satisfy and discharge any other claim which is capable of being
         made in respect of the same subject matter.

(9)      Without prejudice to the generality of paragraph (6) above, the
         Purchaser shall make no claim (other than for any retention,
         deductibles or self-insured amounts) against the Warrantors and the
         Warrantors shall not be liable under this Agreement if and to the
         extent that the subject matter of any claim against the Warrantors is
         covered by a policy of insurance and payment is made by the insurer
         under such policy or under a similar policy effected by the Purchaser
         or the Company; and the Purchaser shall procure that all appropriate
         claims under such insurance are duly and timeously made and prosecuted
         in good faith.



<PAGE>   48



                                  THE SCHEDULE

                                     PART 6


                                             TAX UNDERTAKING

                                             BY

                                             THE PERSONS WHOSE NAMES AND
                                             ADDRESSES ARE GIVEN IN THE SCHEDULE
                                             HERETO (hereinafter referred to as
                                             "the Warrantors")

                                             IN FAVOUR OF

                                             WEATHERFORD EURASIA LIMITED, (Reg
                                             No. 2440463) having its Registered
                                             Office at 16/17 South Quay, Great
                                             Yarmouth, Norfolk NR30 2RA
                                             (hereinafter referred to as "the
                                             Purchaser")

                                             -------------------------------

1.       DEFINITIONS AND INTERPRETATION

1.1      In the construction of this Tax Undertaking except as hereinafter
         defined or as provided in the instance hereof, words and expressions
         used in this Tax Undertaking shall have the same meanings as provided
         in the Share Sale Agreement among Klaas Johannes Zwart, one of the
         Warrantors, and others and the Purchaser and Weatherford International,
         Inc. dated of even date herewith ("the Agreement") and Clauses 1.3 to
         1.5 of the Agreement shall be deemed to be incorporated in this Tax
         Undertaking mutatis mutandis:-

         "Company"                           means all Group Companies
                                             severally;

         "Deferred Relief"                   means any Relief or right to
                                             repayment of Tax which has been
                                             treated as an asset in, or taken
                                             into account in computing (and so
                                             reducing) any provision for Tax or
                                             deferred Tax which appears in, or
                                             assumed to be available in
                                             preparing the Accounts (or which,
                                             but for the presumed availability
                                             of such Relief would have appeared
                                             in any such accounts);

         "Demand"                            shall mean any assessment, notice,
                                             demand or other document issued or
                                             any claim made or action taken
                                             after Completion by or on behalf of
                                             any person, authority (whether
                                             governmental, state, provincial,
                                             local or municipal or a Tax
                                             Authority) or body whatsoever
                                             (whether of the United Kingdom or
                                             elsewhere in the world) from which
                                             it appears that a Tax liability is
                                             or is sought to be imposed on the
                                             Company or that the Company may be
                                             deprived of or denied any Relief or
                                             right to repayment of Tax;

         "event"                             shall include, without limitation
                                             the Corporate Restructuring and any
                                             transaction, act, circumstance,
                                             event or omission of whatever
                                             nature and whether or not the
                                             Company is a party thereto and
                                             includes


<PAGE>   49


                                             (without limitation) a failure to
                                             make sufficient distributions to
                                             avoid an apportionment or deemed
                                             distribution of income and
                                             completion of the sale of the Sale
                                             Shares to the Purchaser; and
                                             reference to any event on or before
                                             a date shall be deemed to include
                                             (a) any combination of two or more
                                             events, the first of which has
                                             taken place on or before that date
                                             and (b) any event which is deemed
                                             for any Tax purpose to have taken
                                             place on or before that date;

         "Relief"                            shall mean any relief from Tax,
                                             allowance, loss, exemption, set-off
                                             or deduction in computing or
                                             against income, profits or gains,
                                             or credit against Tax granted by or
                                             pursuant to any legislation or
                                             otherwise for Tax purposes but
                                             excludes a right to repayment of
                                             Tax;

         "Tax"                               shall mean all forms of taxation,
                                             whether of the United Kingdom or
                                             other parts of the world, including
                                             (without prejudice to the foregoing
                                             generality):-

                                             (a)  within the United Kingdom,
                                                  income tax (including income
                                                  tax required to be deducted or
                                                  withheld from or accounted for
                                                  in respect of any payment),
                                                  corporation tax, advance
                                                  corporation tax, value added
                                                  tax, inheritance tax, national
                                                  insurance and social security
                                                  contributions and any other
                                                  taxes, levies, duties,
                                                  charges, imposts or
                                                  withholdings whatsoever
                                                  (including those corresponding
                                                  to, similar to, replaced by or
                                                  replacing any of them), and
                                                  all costs, fines, penalties,
                                                  expenses, charges and interest
                                                  incidental or relating to the
                                                  same or to any late or
                                                  incorrect return in respect of
                                                  such taxes but specifically
                                                  excluding stamp duty.

                                             (b)  outside the United Kingdom,
                                                  identical or similar taxes to
                                                  those United Kingdom taxes
                                                  included in paragraph (a)
                                                  above, together with all other
                                                  taxes on gross or net income,
                                                  profits or gains and taxes on
                                                  receipts and sales and all
                                                  costs, fines, penalties,
                                                  expenses, charges and interest
                                                  incidental or relating to the
                                                  same or to any late or
                                                  incorrect return in respect of
                                                  such taxes;

                                             regardless (in either case) of
                                             whether any such taxes, levies,
                                             duties, imposts, charges,
                                             withholdings, penalties and
                                             interest are chargeable directly or
                                             primarily against or attributable
                                             directly or primarily to the
                                             Company, or any other person and of
                                             whether any amount in respect of
                                             any of them is recoverable from any
                                             other person as mentioned in
                                             paragraph 8 of this Tax Undertaking
                                             but excluding in either case any
                                             deferred tax;



<PAGE>   50

         "Tax Authority"                     shall mean any taxing or other
                                             authority (whether within or
                                             outside the United Kingdom)
                                             competent to impose or administer
                                             any Tax liability or make any
                                             decision or ruling in respect
                                             thereof.

1.2      References to any Tax liability of the Company shall include both
         liabilities of the Company to make actual payments of or in respect of
         Tax and also:-

         1.2.1    the setting off against any income, profits or gains or any
                  liability of the Company to make an actual payment of or in
                  respect of Tax which were earned, accrued or received on or
                  before Completion or in respect of a period ended on or before
                  Completion or Tax thereon of any Relief or right to repayment
                  of Tax which arises as a consequence of or by reference to an
                  event occurring (or deemed to occur) after Completion or in
                  respect of a period commencing after Completion and not as a
                  consequence of or by reference to any event occurring (or
                  deemed to occur) on or before Completion or in respect of a
                  period ended on or before Completion in circumstances where,
                  but for such setting off, the Company would have had an actual
                  Tax liability in respect of which the Purchaser would have
                  been able to make a claim against the Warrantors under this
                  Tax Undertaking; but

         1.2.2    the loss, reduction in the amount of, setting off against
                  profits or a Tax liability of the Company or unavailability
                  for whatever reason of any Deferred Relief or the inability of
                  the Company to set off any advance corporation tax arising or
                  falling due or paid by reference to an event occurring on or
                  prior to Completion against any Tax liability arising at any
                  time.

1.3      The amount that is to be treated for the purposes of this Tax
         Undertaking as a Tax liability of the Company (the "Notional Tax
         Liability") in any case falling within paragraph 1.2.1 or 1.2.2 of this
         Tax Undertaking shall be determined as follows:

         1.3.1    to the extent that the Relief or right to repayment of Tax
                  that was the subject of the setting off mentioned in that
                  paragraph was a deduction from or offset against Tax, the
                  Notional Tax Liability shall be the amount of that Relief or
                  right to repayment of Tax; and

         1.3.2    to the extent that the Relief or right to repayment of Tax
                  that was the subject of the setting off mentioned in that
                  paragraph was a deduction from or offset against income,
                  profits or gains, the Notional Tax Liability shall be the
                  amount of Tax which has been saved in consequence of the
                  setting off.

1.4      References to:-

         1.4.1    income, profits or gains earned, accrued or received on or
                  before a particular date or in respect of a particular period
                  shall include income, profits or gains which have been deemed
                  to have been earned, accrued or received on or before that
                  date or in respect of that period for the purposes of any Tax
                  and any development value and any other standard or measure
                  for the assessment of any Tax;

         1.4.2    any payment or distribution as being made on or before a
                  particular date shall include:-

                  1.4.2.1  any payment or distribution which has fallen due to
                           be made on or before that date; and

                  1.4.2.2  any event which has occurred on or before that date
                           and is, or is deemed to be, a payment or distribution
                           for (in either case) the purposes of any Tax; and


<PAGE>   51


         1.4.3    any dividend shall include anything which is deemed to be a
                  dividend or distribution for the purposes of any Tax.

2.       UNDERTAKING

2.1      Subject as hereinafter expressly provided, each of the Warrantors
         hereby undertakes for his own account only in the Relevant Proportion,
         and not jointly and severally, with and to the Purchaser to pay to the
         Purchaser (so far as possible by way of repayment of the consideration
         payable under the Agreement for the Sale Shares) an amount equal to the
         following:-

         2.1.1    any Tax liability of the Company arising as a consequence of
                  or by reference to any event which occurred or was entered
                  into on or before Completion or was deemed to occur on or
                  before Completion for the purposes of any Tax; or

         2.1.2    any Tax liability of the Company arising in respect of or by
                  reference to any income, profits or gains earned, accrued or
                  received on or before or in respect of a period ended on or
                  before Completion; and/or

         2.1.3    any depletion in or reduction in value of the assets or
                  increase in the liabilities of the Purchaser and/or the
                  Company as a result of any Inheritance Tax which:-

                  2.1.3.1  is at Completion a charge on any of the shares or
                           assets of the Company or gives rise to a power to
                           sell, mortgage or charge any of the shares or assets
                           of the Company; or

                  2.1.3.2  after Completion becomes a charge on or gives rise to
                           a power to sell, mortgage or charge any of the shares
                           or assets of the Company being a liability in respect
                           of Inheritance Tax payable as a result of the death
                           of any person within seven years after a transfer of
                           value (or a deemed transfer of value) if a charge on
                           or power to sell, mortgage or charge any such shares
                           or assets existed at Completion or would, if the
                           death had occurred immediately before Completion and
                           the Inheritance Tax payable as a result thereof had
                           not been paid, have existed at Completion; or

                  2.1.3.3  arises as a result of a transfer of value occurring
                           on or before Completion (whether or not in
                           conjunction with the death of any person whenever
                           occurring) which increased or decreased the value of
                           the estate of the Company;

         2.1.4    any Tax liability of the Company for which the Company becomes
                  liable in consequence of the failure by:-

                  2.1.4.1  any company (other than any other Group Company)
                           which has at any time (whether before or after
                           Completion) (a) been a member of a group (as defined
                           from time to time for any Taxation purpose) of which
                           the Group Company concerned has at any time prior to
                           Completion been a member and/or (b) been under the
                           control of any person who at any time prior to
                           Completion had control of any Group Company; or

                  2.1.4.2  any company (other than any other Group Company) from
                           which the Group Company has received or become
                           entitled to receive on or before Completion in
                           respect of shares in that other company any capital
                           distribution (as defined in section 122(5)(b) of the
                           TCGA); or

                  2.1.4.3  any trustees of an employee share ownership trust
                           (within the meaning of Schedule 5 to FA 1989)
                           established by the Group Company before


<PAGE>   52


                           Completion or to which a sum has been paid by the
                           Group Company before Completion; or

                  2.1.4.4  any other person

                  to discharge Tax within a specified period or otherwise;
                  provided that in the case of sub-paragraph 2.1.4.4 above this
                  paragraph 2.1.4 shall only apply insofar as such Tax arises as
                  a result of profits earned, accrued or received or an event
                  entered into, effected or occurring on or before Completion;

2.2      any costs and expenses properly and reasonably incurred by the
         Purchaser or the Company in connection with any such Tax liability as
         is referred to in paragraph 2.1 above or with any Demand therefor.

3.       LIMITATIONS AND EXCLUSIONS

3.1      The Warrantors shall not be liable under the undertaking contained in
         paragraph 2 of this Tax Undertaking in respect of any Tax liability of
         the Company:-

         3.1.1    to the extent that provision or reserve in respect thereof was
                  made in the Accounts or to the extent that payment or
                  discharge of such Tax liability was taken into account
                  therein; or

         3.1.2    to the extent that such Tax liability arises or is increased
                  or such provision or reserve in respect thereof as is
                  mentioned in paragraph 3.1.1 of this Tax Undertaking is
                  insufficient by reason only of the imposition of new forms of
                  Tax or increase in the rates of Tax as a consequence of any
                  change in law or in Inland Revenue or Customs and Excise or
                  other Tax Authority's published practice or procedure or in
                  generally accepted accountancy practice or principles
                  occurring, made or first published after Completion and in any
                  such case with retrospective effect; or

         3.1.3    to the extent that any amount in respect of a particular
                  matter otherwise subject to the undertaking contained in
                  paragraph 2 of this Tax Undertaking has been recovered under
                  any of the Warranties in respect of the same matter; or

         3.1.4    arising in respect of or by reference to any income, profits
                  or gains earned, accrued or received in the ordinary course of
                  business after the Accounts Date but on or before Completion;
                  or

         3.1.5    to the extent that any such Tax liability can be mitigated by
                  Reliefs or rights to repayment of Tax other than such Reliefs
                  as are referred to in paragraph 1.2 of this Tax Undertaking,
                  provided that the Purchaser and the Company shall be entitled
                  to use any Reliefs and/or rights to repayment of Taxation in
                  such manner as they consider appropriate; or

         3.1.6    which would not have arisen but for a voluntary act,
                  transaction or omission by the Company or the Purchaser
                  carried out or occurring after Completion otherwise than in
                  the ordinary course of business; or

         3.1.7    to the extent that it would not have arisen but for a change
                  in the accounting practices or polices adopted for future
                  accounts of the Company (save insofar as is necessary to
                  comply with generally accepted accounting practice or
                  principles in force as at Completion) or to the extent it is
                  attributable to timing differences.

3.2      The limitations and stipulations contained in Clause 6 of the Agreement
         and Part 5 of the Schedule shall apply for the purposes of this Tax
         Undertaking to the extent specified therein.


<PAGE>   53



4.       NOTIFICATION OF CLAIMS

4.1      Without prejudice to any other provision of this Tax Undertaking, if
         the Purchaser or the Company shall become aware of any Demand which may
         or will result in any claim against the Warrantors under this Tax
         Undertaking, the Purchaser shall as soon as reasonably practicable give
         or procure the giving of written notice thereof to the Warrantors
         setting out reasonable details of the Demand.

4.2      Subject to Clause 4.3 and to the Warrantors indemnifying and securing
         the Purchaser and/or the Company to the Purchaser's reasonable
         satisfaction against any costs, claims, liabilities and expenses
         (including interest on overdue Tax) which may be incurred thereby, the
         Purchaser shall procure at the request in writing of or on behalf of
         the Warrantors that the Company shall give the Warrantors such
         reasonable co-operation and assistance for the purposes of disputing,
         resisting, appealing, compromising or defending such Demand or any
         further Demand arising therefrom as aforesaid as the Warrantors may
         reasonably by written notice request.

4.3      The Purchaser and the Company shall be at liberty without reference to
         the Warrantors to admit, compromise, settle, discharge or otherwise
         deal with any Demand if the Warrantors decline to give, or delay
         unreasonably in giving or fail to give within 14 days of the relevant
         notice given to them pursuant to Clause 4.1, any such request as is
         mentioned in Clause 4.2 above, in which case the liability of the
         Warrantors hereunder shall not be diminished or extinguished on the
         grounds that the Purchaser or the Company took or omitted to take any
         action with regard to such claim.

4.4      The actions which the Warrantors may reasonably request under paragraph
         4.2 of this Tax Undertaking shall include (without limitation) the
         Company applying to postpone (so far as legally possible) the payment
         of any tax and/or (subject to the approval of the Purchaser (such
         approval not to be unreasonably withheld or delayed)) the instruction
         of such solicitors or other professional advisers as the Warrantors may
         nominate to act on behalf of the Company to the intent that the conduct
         and costs and expenses of the dispute shall be delegated entirely to
         and be borne solely by the Warrantors, provided that neither the
         Purchaser nor the Company shall be required to take any action if, in
         the Purchaser's reasonable opinion, such action would be unduly onerous
         or materially prejudicial to the Purchaser or the Company or their
         respective business or would increase any future liability to Taxation
         of the Purchaser and/or the Company.

4.5      In connection with the conduct of any dispute relating to a Tax
         liability to which this Tax Undertaking applies:-

         4.5.1    the Warrantors shall keep the Purchaser fully informed of any
                  relevant matters and shall promptly forward, or procure to be
                  forwarded, to the Purchaser copies of all correspondence and
                  other written communications pertaining to it;

         4.5.2    no correspondence shall be made to any Tax Authority without
                  the Purchaser having been given a period of not less than ten
                  Business Days to review and comment on the same and the
                  Warrantors shall incorporate any reasonable comments of the
                  Purchaser made within such period;

         4.5.3    no settlement or compromise shall be made of the matter which
                  is the subject of the dispute nor any agreement reached in
                  respect of any matter in its conduct which is likely to
                  increase the amount of the resulting Tax liability without the
                  prior written approval of the Purchaser (which shall not be
                  unreasonably withheld or delayed);

         4.5.4    neither the Purchaser nor the Company shall be required to
                  take any action which is unlawful, or which involves
                  contesting any Tax assessment before any court or other
                  appellate body unless the Warrantors (at their own cost and
                  expense) furnish the


<PAGE>   54



                  Purchaser with the written opinion of Tax Counsel of at least
                  ten years standing to be chosen by agreement of the parties
                  (or failing which to be chosen by the President of the Law
                  Society of Scotland) to the effect that an appeal against the
                  Tax assessment will on the balance of probabilities be
                  successful. Such Tax Counsel shall be entitled (at the cost
                  and expense of the Warrantors) to obtain opinions from any
                  overseas advisers whom be considered appropriate in respect of
                  any overseas Tax matters in forming his opinion; and

         4.5.5    neither the Purchaser nor the Company shall be obliged to
                  appeal against any assessment where it is a condition of such
                  appeal being made that all or any part of the Tax to which the
                  assessment in question relates is paid to the relevant Tax
                  Authority unless the Warrantors have paid to the Purchaser an
                  amount equal to the payment which requires to be made to the
                  relevant Tax Authority. If the whole or part of the payment is
                  subsequently recovered by the Purchaser it shall to that
                  extent be immediately repaid to the Warrantors together with
                  any repayment supplement.

5.       TAX RETURNS

5.1      The Warrantors or their duly authorised agents shall prepare in
         conjunction with and with the approval of the Purchaser, which approval
         shall not be unreasonably withheld, the tax returns of the Company for
         all accounting periods ended on or prior to Completion, to the extent
         that the same shall not have been prepared before Completion and
         subject to Clause 5.2 shall deal with all matters (including
         correspondence) relating to the tax returns of the Company for all
         accounting periods ended on or prior to Completion provided full
         indemnity for such matters is provided by the Warrantors. The Purchaser
         shall procure that the Company shall afford such access to their books,
         accounts and records as is necessary and reasonable to enable the
         Warrantors or their duly authorised agents to prepare those returns and
         conduct matters relating thereto in accordance with the Warrantors'
         rights under this Tax Undertaking.

5.2      The Purchaser shall (provided that the Purchaser shall have been given
         a period of not less than ten Business Days to comment on the same)
         cause the returns mentioned in paragraph 5.1 of this Tax Undertaking to
         be authorised, signed and submitted to the appropriate authority
         without amendment or with such amendments as the Warrantors shall agree
         (and the Warrantors shall incorporate any reasonable comments of the
         Purchaser made prior to the expiry of such ten Business Day period),
         and shall give the Warrantors or their agents all such assistance (at
         the cost and expense of the Warrantors) as may be required to agree
         those returns with the appropriate authorities provided that the
         Purchaser shall be entitled to refuse to cause any such returns to be
         signed if they consider the return to be incorrect and in the case of
         any dispute as to the correctness of the return between the Warrantors
         and the Purchaser the matter shall be referred to a Tax Counsel of at
         least ten years standing agreed between the parties or, failing
         agreement, nominated on the application of either the Warrantors or the
         Purchaser by the President for the time being of the Law Society of
         Scotland for resolution (acting as an expert and not as an arbiter and
         whose costs shall be borne as between the Warrantors and the Purchaser
         in such manner as they shall agree or as he shall direct) and (save in
         the case of manifest error) the decision of such Tax Counsel shall be
         final and binding on the parties and the Purchaser shall cause to be
         signed the return in the form which is so resolved to be correct.

6.       PAYMENT OF CLAIMS

6.1      Payments by the Warrantors pursuant to the undertaking in paragraph 2
         of this Tax Undertaking shall be made on the day or date specified in
         paragraph 6.2 below.

6.2      The days and dates referred to in paragraph 6.1 above are as follows:-

         6.2.1    if the Tax liability giving rise to a claim under this Tax
                  Undertaking involves an actual payment of Tax by the Company
                  the date which is three Business Days prior to


<PAGE>   55


                  the last day on which that Tax may be paid by the Company to
                  the relevant Tax Authority in accordance with the relevant Tax
                  legislation without incurring a liability to interest or a
                  charge or penalty in respect of the non-payment of that Tax
                  liability;

         6.2.2    if the Tax liability giving rise to a claim under this Tax
                  Undertaking does not involve an actual payment of Tax:-

                  6.2.2.1  if involving the setting off in whole or in part of
                           any Relief or right to repayment of Tax, the date on
                           which the Tax saved thereby would otherwise have
                           become fully due and payable to the relevant Tax
                           Authority in accordance with the relevant Tax
                           legislation; or

                  6.2.2.2  if involving the loss, non-availability or reduction
                           in the amount of any Relief, the date on which any
                           Tax first becomes payable to the relevant Tax
                           Authority in accordance with the relevant Tax
                           legislation but for the loss, non-availability or
                           reduction in question;

                  6.2.2.3  if involving the loss, non-availability of or
                           reduction in the amount of a right to repayment of
                           Tax, the earliest date upon which the repayment of
                           Tax would have been obtained from the relevant Tax
                           Authority in accordance with the relevant Tax
                           legislation but for the loss, non-availability or
                           reduction in question;

                  6.2.2.4  in any case other than as referred to in paragraphs
                           6.2.2.1 to 6.2.2.3 (inclusive) above, the date
                           falling seven days after the date when the Warrantors
                           have been notified by the Company or the Purchaser of
                           the making of a claim under this Tax Undertaking;

         6.2.3    in the case of the costs and expenses referred to in paragraph
                  2 of this Tax Undertaking, seven Business Days after the date
                  on which the Purchaser or the Company produce properly
                  receipted invoices in respect thereof to the Warrantors.

6.3      If the Warrantors shall fail to pay any sum due by them under this Tax
         Undertaking on the due date for payment in accordance herewith then,
         except to the extent that the Warrantors' liability under paragraph 2
         of this Tax Undertaking compensates the Purchaser for that late payment
         by virtue of its extending to interest and penalties, the Warrantors
         shall pay interest thereon from such date until the date when payment
         is actually made in full (as well after as before any decree) at the
         rate of two per cent per annum above the base rate from time to time of
         the Bank of Scotland.

7.       NO WITHHOLDINGS

7.1      All sums payable by the Warrantors under this Tax Undertaking shall be
         paid free and clear of all deductions or withholding or set-off unless
         the deduction or withholding or set-off is required by law.

7.2      If any deduction or withholding or set-off is required by law to be
         made from any sums, the Warrantors shall be obliged to pay to the
         Purchaser such amount as will, after the deduction or withholding or
         set-off has been made, leave the Purchaser with the same amount as it
         would have been entitled to receive in the absence of such requirement
         to make a deduction or withholding or set-off.

7.3      If any Tax Authority brings into charge to Tax any sum paid to the
         Purchaser under this Tax Undertaking, the amount so payable shall be
         increased so that, after deduction of the Tax so chargeable, there
         shall be left a sum equal to the amount that would otherwise be
         payable.


<PAGE>   56


8.       RECOVERY FROM THIRD PARTY

8.1      Subject to paragraph 8.3, if the Company recovers any sum (whether by
         payment, discount, credit or otherwise) from any third party (including
         any Tax Authority), or receives any repayment of Tax (including any
         repayment supplement) in respect of any Tax liability, for which a
         claim could be made or has been made under this Tax Undertaking the
         amount so recovered, less the reasonable costs incurred by the Company
         in recovering or obtaining repayment of the same, shall:-

         8.1.1    if the Warrantors have at the time of the recovery or
                  repayment made payment under this Tax Undertaking in respect
                  of that Tax liability, be paid forthwith to the Warrantors to
                  the extent not exceeding the amount so paid by the Warrantors
                  (but without prejudice to the right of the Purchaser to
                  recover from the Warrantors under this Tax Undertaking if a
                  further Tax liability is imposed upon the Company, whether in
                  respect of matters to which the recovery or repayment relates
                  or otherwise);

         8.1.2    if a claim has been made pursuant to this Tax Undertaking in
                  respect of that Tax liability but the Warrantors have not at
                  the time of recovery or repayment made payment in respect
                  thereof, be set against and reduce the claim against the
                  Warrantors in respect of such Tax liability (but without
                  prejudice to the right of the Purchaser to recover from the
                  Warrantors under this Tax Undertaking if a further Tax
                  liability is imposed upon the Company, whether in respect of
                  matters to which the recovery or repayment relates or
                  otherwise);

         8.1.3    if no claim has been made pursuant to this Tax Undertaking in
                  respect of that Tax liability at the time of recovery or
                  repayment, be set against and reduce any claim that
                  subsequently may be made against the Warrantors in respect of
                  such Tax liability (but without prejudice to the right of the
                  Purchaser to recover from the Warrantors under this Tax
                  Undertaking if a further Tax liability is imposed upon the
                  Company, whether in respect of matters to which the recovery
                  or repayment relates or otherwise).

8.2      Upon the Company becoming aware of its ability to recover any amount as
         is mentioned in paragraph 8.1 of this Tax Undertaking it shall promptly
         notify the Warrantors and thereafter shall keep the Warrantors fully
         informed of the progress of any action taken.

8.3      The provisions of paragraph 8.1 shall not apply to any sum recovered
         where the recovery in question arises from the use by the Purchaser or
         the Company of a Relief or right to repayment of Tax of a type referred
         to in paragraph 1.2.1 or 1.2.2.

9.       GROUP RELIEF

9.1      The Purchaser may by notice in writing to the Warrantors require the
         Warrantors to procure that:-

         9.1.1    Ascari and IWT shall surrender to such company or companies as
                  the purchaser shall notify to the Warrantors any Group Relief
                  to the extent permitted by law but without any payment being
                  made by the Purchaser or the recipient of such Group Relief in
                  consideration of such surrender; and

         9.1.2    Ascari and IWT sign all such deeds, documents and forms as may
                  be necessary to surrender the Group Relief referred to in
                  Clause 9.1.1 above.

9.2      In this Clause 9, Group Relief means:-

         9.2.1    any relief surrendered or claimed pursuant to Chapter IV of
                  Part X of ICTA;

         9.2.2    any advance corporation tax surrendered or claimed pursuant to
                  section 240 ICTA; and


<PAGE>   57


         9.2.3    any refund of Tax surrendered or claimed pursuant to section
                  102 FA 1989.

10.      ILLEGALITY/SEVERABILITY

10.1     If at any time any provision hereof is or becomes illegal, invalid or
         unenforceable in any respect under the law of any jurisdiction, neither
         the legality, validity or enforceability of the remaining provisions of
         this Tax Undertaking in that or any other jurisdiction or the legality,
         validity or enforceability of such provision under the law of any other
         jurisdiction shall in any way be affected or impaired thereby.

10.2     Each of the indemnities and undertakings on the part of the Warrantors
         contained in this Tax Undertaking shall be construed separately and
         (save as otherwise expressly provided herein) none of the said
         indemnities and undertakings shall limit or govern the extent,
         application or construction of any other of them and notwithstanding
         that any such indemnity or undertaking may prove to be illegal or
         unenforceable the remaining such indemnities and undertakings shall
         continue in full force and effect.

11.      EFFECT OF DISCHARGE OF CLAIM

         For the avoidance of doubt, the Warrantors shall remain liable in
         accordance with the terms of this Tax Undertaking notwithstanding that
         any Tax giving rise to a liability to make a payment under paragraph 2
         of this Tax Undertaking is or has been discharged or suffered by the
         relevant Group Company, whether before or after the date hereof and
         whether by payment or by the loss or utilisation of any Relief or right
         to repayment of Tax.

12.      EFFECT OF WAIVER, RELEASE, ETC. AND FAILURE OR DELAY

12.1     Any liability to the Purchaser hereunder may in whole or in part be
         released, compounded or compromised or time or indulgence given by the
         Purchaser in its absolute discretion as regards any of the Warrantors
         under such liability without in any way prejudicing or affecting its
         rights against any other or others of the Warrantors under the same or
         a like liability whether joint and several or otherwise.

12.2     No failure or delay by the Purchaser or the Warrantors to exercise any
         right or power hereunder shall operate as a waiver thereof nor shall
         any partial exercise preclude any other or further exercise or the
         exercise of any other right.

13.      STAMP DUTY

         Each of the Warrantors hereby warrants to the Purchaser for his own
         account only in the Relevant Proportion and not jointly and severally
         that all documents forming part of the title to any asset of the
         Company or which the Company may wish to enforce or produce in evidence
         are duly stamped and have where appropriate been adjudicated. The
         Warrantors hereby agree that in the event of a breach of this warranty
         they shall forthwith upon demand by the Purchaser pay to the Purchaser
         by way of liquidated damages an amount equal to any unpaid stamp duty
         and any interest or penalties payable in respect thereof.

14.      ASSIGNATION

         The provisions of Clause 12 of the Agreement shall have effect as if
         set out in full herein.


<PAGE>   58


15.      NOTICES

         The provisions of Clause 16 of the Agreement shall have effect as if
         set out in full herein.


16.      GOVERNING LAW

         This Tax Undertaking shall be governed by and construed in all respects
         in accordance with the laws of Scotland and the parties hereto
         irrevocably prorogate the non-exclusive jurisdiction of the Scottish
         Courts.

IN WITNESS WHEREOF these presents consisting of this page and the previous pages
are executed on 2 September 1999 as follows:-


                                       Klaas Johannes Zwart


                                       Mirjam Pauline Zwart


                                       Fraser Thomas Innes


                                       Stuart Edward Ferguson


SUBSCRIBED for and on behalf of Weatherford Eurasia Limited by one of its
directors in the presence of-

                                       Weatherford Eurasia Limited


<PAGE>   1




                                                                    EXHIBIT 23.1


                         CONSENT OF INDEPENDENT AUDITORS


We consent to the incorporation by reference in the Registration Statements
(File Nos. 33-31662, 33-56384, 33-56386, 33-65790, 33-64349, 333-13531,
333-39587, 333-44345, 333-45207, 333-53633, 333-80215 and 333-83739) of
Weatherford International, Inc. of our report dated March 29, 1999, with respect
to the consolidated balance sheets of Dailey International Inc. as of December
31, 1998 and 1997, and the related consolidated statements of operations,
stockholders' equity, and cash flows for the year ended December 31, 1998, the
eight month period ended December 31, 1997 and for each of the two years in the
period ended April 30, 1997, included and incorporated by reference in
Weatherford International, Inc.'s Form 8-K dated August 31, 1999.


/s/ Ernst & Young LLP

Houston, Texas
September 7, 1999





<PAGE>   1




                                                                    EXHIBIT 99.1



                         WEATHERFORD CLOSES DAILEY DEAL


HOUSTON, Aug. 31, 1999 -- Weatherford International, Inc. (NYSE: WFT) today
announced that it has completed its acquisition of Dailey International, Inc.

Under the terms of the acquisition, Weatherford will issue a total of
approximately 4,267,640 shares of Common Stock to the Dailey noteholders and
stockholders. Of the total number shares issued, Weatherford will issue
approximately 3,985,900 shares to the Dailey noteholders and approximately
281,740 shares to the Dailey common stockholders. The total number of
Weatherford shares issued was based upon a market value of $35.49375 per
Weatherford share. In addition, Weatherford, which held approximately 24 percent
of the outstanding Dailey notes, will receive approximately 1,226,285 shares of
its own common stock to be retained as treasury shares.

Dailey International is a leading provider of specialty drilling equipment and
services to the oil and gas industry and designs, manufactures and rents
proprietary downhole tools for oil and gas drilling and workover applications
worldwide.

Houston-based Weatherford International, Inc. is one of the largest global
providers of engineered products and services to the drilling and production
sectors of the oil and gas industry.

                                      # # #

Contact:
Don Galletly   (713) 693-4148




<PAGE>   1




                                                                    EXHIBIT 99.2


       WEATHERFORD TO ACQUIRE PETROLINE WELLSYSTEMS FOR (POUND)104 Million

       Adds Latest Sand and Flow Control Technologies to Completions Unit


HOUSTON, Sept. 2, 1999 - Weatherford International, Inc. (NYSE: WFT) today
announced that it has acquired Petroline Wellsystems Limited for (pound)104
million (approximately $165 million), of which (pound)20 million is payable in
cash and (pound)84 million in Weatherford Common Stock.

Petroline, based in Aberdeen, Scotland, is a provider of premium completion
products and services to the international oil and gas industry. It is the
leading provider of flow control equipment in the North Sea and it was the first
company to successfully introduce completion products using new expandable tube
technology.

During the past year, Weatherford has been actively expanding its scope in well
completion systems. The Petroline acquisition adds critical components to
Weatherford's completion capabilities, including Petroline's patented expandable
sand screen and slotted tube technology. This stable of "best-in-class"
technologies will complement Weatherford's other completion strengths in liner
hangers, production packers, inflatable packers, well screens and intelligent
well technology.

In addition, Petroline's strong engineering capabilities will add to
Weatherford's product development competencies. With its wide global reach,
Weatherford expects to rapidly increase the availability and use of Petroline's
products and services.

Petroline's product lines include premium flow control equipment and a range of
specialized valves used for well completion, maintenance and reservoir
isolation. Petroline also provides a variety of other premium products used for
completion of offshore and deep wells.

Petroline's patented expandable slotted tubing (EST) products place it at the
forefront of completion technology. The EST product line includes expandable
sand screens, expandable completion liners, expandable isolation sleeves and
expandable alternate bore liners.

These new technologies offer substantial cost savings and reservoir enhancement
benefits when compared with traditional completion methods such as gravel
packing or cemented and perforated liners. Petroline developed many of these
products as the first licensee of Shell's expandable tubular technology.

"We are extremely excited about the addition of Petroline to the Weatherford
group" said Bernard J. Duroc-Danner, Weatherford's Chairman and Chief Executive
Officer. "We believe that the combination of Petroline's technology and people
will provide us with a platform on which to expand into the high margin premium
offshore and international completion markets." "Additionally, Petroline's
patented EST technology should provide us with an important competitive
advantage in providing our customer with high value-added completion systems.
Petroline represents a key component of our long-term completion strategy."


<PAGE>   2


Houston-based Weatherford International, Inc. is one of the largest global
providers of engineered products and services to the drilling and production
sectors of the oil and gas industry.

                                      # # #

Contact:
Don Galletly   (713) 693-4148
Bruce Longaker  (713) 693-4161

<PAGE>   1
                                                                    EXHIBIT 99.6


PRO FORMA CONDENSED FINANCIAL STATEMENTS

         The following summary unaudited pro forma condensed consolidated
financial data of Weatherford is based on the historical financial data of
Weatherford and the historical financial data of Dailey.  The Unaudited Pro
Forma Condensed Consolidated Statements of Operations for the year ended
December 31, 1998, and the three months ended March 31, 1999, give effect to
Weatherford's  proposed acquisition of Dailey as if the transaction had occurred
on January 1, 1998. The Unaudited Pro Forma Condensed Consolidated Balance Sheet
gives effect to the proposed acquisition as if this transaction had occurred on
March 31, 1999.

         The pro forma information set forth below is not necessarily indicative
of the results that actually would have been achieved had such transactions been
consummated as of the aforementioned dates, or that may be achieved in the
future. In particular, the pro forma financial statements do not give effect to
any cost savings or additional synergies that may be realized by us as a result
of the proposed acquisition.  We currently expect to realize around $20 million
in annual cost savings and $8 million in additional annual margins from the
acquisition. These benefits are not reflected in the pro forma adjustments and
are subject to various uncertainties described below under "Forward Looking
Statements".   As a result, while we currently expect to realize these benefits
from the acquisition, there can be no assurance that these benefits will be
fully realized.

         All other acquisitions by Weatherford are not material individually or
in the aggregate; therefore, pro forma information is not reflected.  Because
this pro forma information is a summary, it does not contain all information
that may be important to you.  You should also read the following:

         o  Weatherford's Management's Discussion and Analysis of Financial
            Condition and Results of Operations and its financial statements and
            related notes thereto contained in its Annual Report on Form 10-K
            for the year ended December 31, 1998.

         o  Weatherford's Quarterly Report on Form 10-Q for the period ended
            March 31, 1999.

         o  Dailey's Management's Discussion and Analysis of Financial Condition
            and Results of Operations and its financial statements and related
            notes thereto contained in its Annual Report on Form 10-K  for the
            year ended December 31, 1998.

         o  Dailey's Quarterly Report on Form 10-Q for the period ended
            March 31, 1999.


                                     Page 2
<PAGE>   2
                    WEATHERFORD INTERNATIONAL, INC.
        UNAUDITED PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET
                          As of March 31, 1999
                             (In thousands)

<TABLE>
<CAPTION>

                                                       WEATHERFORD    DAILEY        PRO FORMA         WEATHERFORD
                                                       HISTORICAL    HISTORICAL    ADJUSTMENTS         PRO FORMA
                                                       -----------   ----------    -----------        -----------
<S>                                                    <C>           <C>           <C>                <C>
ASSETS
Current assets:
  Cash and cash equivalents                            $   34,736    $   19,185    $   (17,667)(a)(b) $    36,254
  Accounts receivable, net                                367,298        33,002             --            400,300
  Inventories                                             522,157            --             --            522,157
  Other current assets                                    144,873         3,142        (31,513)(b)(c)     116,502
                                                       ----------    ----------    -----------        -----------
          Total current assets                          1,069,064        55,329        (49,180)         1,075,213
                                                       ----------    ----------    -----------        -----------
Property, plant and equipment, net                      1,008,014       149,674        (11,376)(d)      1,146,312
Goodwill, net                                             837,704        21,979             --            859,683
Other assets                                              122,578        24,054         (7,640)(e)        138,992
                                                       ----------    ----------    -----------        -----------
                                                       $3,037,360    $  251,036    $   (68,196)       $ 3,220,200
                                                       ==========    ==========    ===========        ===========
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Short-term borrowings and current
     portion of long-term debt                         $  225,431    $      736    $        --        $   226,167
  Accounts payable                                        108,174        12,426             --            120,600
  Other accrued liabilities                               180,881         7,948          3,177 (f)        192,006
                                                       ----------    ----------    -----------        -----------
          Total current liabilities                       514,486        21,110          3,177            538,773
                                                       ----------    ----------    -----------        -----------
Long-term debt                                            230,111       275,067       (275,000)(e)        230,178
Minority interests                                        268,840            --             --            268,840
Deferred income taxes and other                           140,180         7,011             --            147,191
5% Convertible Subordinated
     Preferred Equivalent Debentures                      402,500            --             --            402,500
Stockholders' equity:
  Common stock                                            107,949           106          4,493 (g)(h)     112,548
  Capital in excess of par                              1,122,694        53,062         93,814 (g)(h)   1,269,570
  Treasury stock, at cost                                (268,460)       (4,061)         4,061 (h)       (268,460)
  Retained earnings  (deficit)                            609,723      (100,190)       100,190 (h)        609,723
  Accumulated other comprehensive
     loss                                                 (90,663)       (1,069)         1,069 (h)        (90,663)
                                                       ----------    ----------    -----------        -----------
          Total stockholders' equity                    1,481,243       (52,152)       203,627          1,632,718
                                                       ----------    ----------    -----------        -----------
                                                       $3,037,360    $  251,036    $   (68,196)       $ 3,220,200
                                                       ==========    ==========    ===========        ===========
</TABLE>

                                     Page 3

<PAGE>   3
                 WEATHERFORD INTERNATIONAL, INC.
UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS

               For the Year Ended December 31, 1998
             (In thousands, except per share amounts)

<TABLE>
<CAPTION>

                                                                 WEATHERFORD     DAILEY        PRO FORMA        WEATHERFORD
                                                                 HISTORICAL     HISTORICAL    ADJUSTMENTS        PRO FORMA
                                                                 -----------    ----------    -----------       ------------
<S>                                                              <C>            <C>           <C>               <C>
Revenues                                                         $ 2,010,654    $  132,317    $    (1,046)(i)   $ 2,141,925
                                                                 -----------    ----------    -----------       -----------
Costs and expenses:
        Cost of sales                                              1,426,785       108,896         (2,432)(i)(j)  1,533,249
        Selling, general and administrative                          293,403        39,058             --           332,461
        Merger costs and other charges                               144,097        56,450             --           200,547
        Equity in earnings of unconsolidated affiliates               (2,679)           --             --            (2,679)
                                                                 -----------    ----------    -----------       -----------
                                                                   1,861,606       204,404         (2,432)        2,063,578
                                                                 -----------    ----------    -----------       -----------
Operating income                                                     149,048       (72,087)         1,386            78,347
                                                                 -----------    ----------    -----------       -----------
Other income (expense):
        Interest expense                                             (54,497)      (24,429)        23,750 (k)       (55,176)
        Interest income                                                2,969         3,425           (521)(l)         5,873
        Other income (expense), net                                    1,868           (42)            --             1,826
                                                                 -----------    ----------    -----------       -----------
                                                                     (49,660)      (21,046)        23,229           (47,477)
                                                                 -----------    ----------    -----------       -----------
Income (loss) before income taxes                                     99,388       (93,133)        24,615            30,870
Provision for income taxes                                            34,551         2,115          8,615 (m)        45,281
                                                                 -----------    ----------    -----------       -----------
Income (loss) from continuing operations                         $    64,837    $  (95,248)   $    16,000       $   (14,411)
                                                                 ===========    ==========    ===========       ===========
Income (loss) from continuing operations per share:
        Basic                                                    $      0.67                                    $     (0.14)
                                                                 ===========                                    ===========
        Diluted                                                  $      0.66                                    $     (0.14)
                                                                 ===========                                    ===========
Weighted average shares outstanding:
        Basic                                                         97,065                                        101,664 (n)
                                                                 ===========                                    ===========
        Diluted                                                       97,757                                        101,664
                                                                 ===========                                    ===========
</TABLE>

                                     Page 4
<PAGE>   4
                 WEATHERFORD INTERNATIONAL, INC.
UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS

             For the Three Months Ended March 31, 1999
             (In thousands, except per share amounts)


<TABLE>
<CAPTION>
                                                         Weatherford       Dailey       Pro Forma       Weatherford
                                                          Historical     Historical    Adjustments       Pro Forma
                                                         -----------     ----------    -----------      -----------
<S>                                                       <C>            <C>           <C>              <C>
Revenues                                                 $  353,834      $   28,339    $      (525)(i)  $   381,648
                                                         ----------      ----------    -----------      -----------
Costs and expenses:
        Cost of sales                                       259,261          24,943           (702)(i)(j)   283,502
        Selling, general and administrative                  78,002           8,240             --           86,242
        Reorganization costs                                     --           1,239             --            1,239
        Equity in earnings of unconsolidated affiliates        (454)           (509)            --             (963)
                                                         ----------      ----------    -----------      -----------
                                                            336,809          33,913           (702)         370,020
                                                         ----------      ----------    -----------      -----------
Operating income                                             17,025          (5,574)           177           11,628
                                                         ----------      ----------    -----------      -----------
Other income (expense):
        Interest expense                                    (12,652)         (6,900)         6,746 (k)      (12,806)
        Interest income                                       1,521             747         (1,122)(l)        1,146
        Other income (expense), net                            (854)            272             --             (582)
                                                         ----------      ----------    -----------      -----------
                                                            (11,985)         (5,881)         5,624          (12,242)
                                                         ----------      ----------    -----------      -----------

Income (loss) before income taxes and minority
  interests                                                   5,040         (11,455)         5,801             (614)
Provision for income taxes                                    1,764           1,081          2,030 (m)        4,875
                                                         ----------      ----------    -----------      -----------
Income (loss) from continuing operations                      3,276         (12,536)         3,771           (5,489)
Minority interest expense, net of taxes                         738              --             --              738
                                                         ----------      ----------    -----------      -----------
Net income (loss)                                        $    2,538      $  (12,536)   $     3,771      $    (6,227)
                                                         ==========      ==========    ===========      ===========

Net income (loss) per share :
        Basic                                            $     0.03                                     $     (0.06)
                                                         ==========                                     ===========
        Diluted                                          $     0.03                                     $     (0.06)
                                                         ==========                                     ===========
Weighted average shares outstanding:
        Basic                                                97,315                                         101,914 (n)
                                                         ==========                                     ===========
        Diluted                                              98,007                                         101,914
                                                         ==========                                     ===========
</TABLE>


                                     Page 5
<PAGE>   5
         NOTES TO PRO FORMA CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

GENERAL

      The following notes set forth the assumptions used in preparing the
unaudited pro forma financial statements. The pro forma adjustments are based on
estimates made by Weatherford's management using information currently
available.

PRO FORMA ADJUSTMENTS

     The adjustments to the accompanying Unaudited Pro Forma Condensed
Consolidated Balance Sheet are described below:

     (a)  To record the cash payment of $15.0 million for transaction and
     severance costs.

     (b)  To record Weatherford's May 24, 1999 purchase of Dailey's 9 1/2%
     Senior Notes due 2008 (the "Senior Notes") for $2.7 million (face value of
     $4.4 million).

     (c)  To reverse Weatherford's $34.2 million net investment (face value
     $64.7 million) in the Senior Notes.

     (d)  To reflect the initial estimate of the write-down of Dailey's
     property, plant, and equipment to fair market value.

     (e)  To reflect the retirement of the Senior Notes and the write-off of
     related debt issuance costs.

     (f)  To reverse $3.3 million in accrued interest and the $1.1 million
     income tax receivable related to the Senior Notes. To accrue $5.3 million
     for litigation and other contingencies relating to Dailey.

     (g)  To reflect the issuance of $195.0 million in shares of Weatherford
     common stock less $43.5 million in Weatherford common stock to be received
     by Weatherford in respect of the Senior Notes held by Weatherford. The net
     shares to be issued are approximately 4.6 million shares, valued at $32
     15/16 per share, which was the closing market price on May 20, 1999. Of
     this amount, the Dailey shareholders will receive shares valued at $10.0
     million and the balance of the shares will be issued to the holders of the
     Senior Notes other than Weatherford.

     (h)  To eliminate Dailey's equity, which consists of $0.1 million common
     stock, $53.1 million capital in excess of par, $4.1 million of treasury
     stock, $100.2 million of retained deficit, and $1.1 million of accumulated
     other comprehensive loss.

     The adjustments to the accompanying Unaudited Pro Forma Condensed
Consolidated Statements of Operations are described below:

     (i)  To eliminate revenues of $1.0 million and $0.5 million and related
     costs of $0.2 million and $0.1 million for the year ended December 31, 1998
     and the three months ended March 31, 1999, respectively, associated with
     transactions between Dailey and Weatherford.

     (j)  To reverse depreciation expense of $2.2 million and $0.6 million for
     the year ended December 31, 1998 and the three months ended March 31, 1999,
     respectively, to reflect the write-down of property, plant, and equipment
     to fair market value. Such property, plant and equipment is being
     depreciated over five years.

     (k)  To eliminate interest expense to reflect the retirement of the Senior
     Notes.

     (l)  To eliminate Weatherford's interest income related to its investment
     in the Senior Notes.

     (m)  To record the income tax provision related to the effect of the pro
     forma adjustments at the statutory rate.

     (n)  Weatherford's historical shares outstanding and basic weighted average
     pro forma shares outstanding as of March 31, 1999, were 97,283,731 and
     101,914,007, respectively. Weatherford's historical shares outstanding and
     basic weighted average pro forma shares outstanding as of December 31,
     1998, were 97,328,462 and 101,663,578, respectively.


                                     PAGE 6

<PAGE>   6
FORWARD-LOOKING STATEMENTS

     This report contains forward-looking statements relating to our proposed
acquisition of Dailey. We believe these statements constitute "forward-looking
statements" as defined in the Private Securities Litigation Reform Act of 1995.
Certain risks and uncertainties may cause actual results to be materially
different from projected results contained in forward-looking statements in this
report. In addition to the general market risks described in our Annual and
Quarterly Reports, there exist risks and uncertainties relating to the Dailey
acquisition, including, but not limited to, the following:

     o    BANKRUPTCY UNCERTAINTIES. Our acquisition of Dailey is subject to
          bankruptcy court approval. Although we have received agreements from
          the holders of more than two-thirds of the claims of Dailey's impaired
          creditors, there can be no assurance that the acquisition will be
          completed in a timely manner. Our pro forma financial statements
          assume that the acquisition of Dailey will be completed between 60 and
          120 days without any unexpected administrative costs and expenses or
          unknown claims against Dailey. To the extent the bankruptcy process
          takes longer than anticipated or claims, including severance, exceed
          those currently projected the costs of the acquisition could be
          greater than that set forth in the pro forma financial statements.

     o    COST SAVINGS. We currently expect that our acquisition of Dailey will
          allow us to realize around $20 million in annual cost savings through
          the elimination and reduction of overlapping costs. Our ability to
          achieve these savings will be dependent on our ability to integrate
          the operations of the acquired business, including personnel, systems
          and facilities.

     o    SYNERGIES. We currently expect to realize around $8 million annually
          in additional margins from the manufacture of our own drilling and
          fishing jars. These savings will be dependent on the ultimate amount
          of jar business conducted by us, which in turn will be dependent on
          market conditions. Our ability to realize these benefits will also be
          dependent on the timing of the conversion of our current jar lines to
          the Dailey jar line.




                                     PAGE 7

<PAGE>   1
                                                                    EXHIBIT 99.7


PRO FORMA CONDENSED FINANCIAL STATEMENTS

     The following summary unaudited pro forma condensed consolidated financial
data of Weatherford is based on the historical financial data of Weatherford and
the historical financial data of Dailey. The Unaudited Pro Forma Condensed
Consolidated Statement of Operations for the six months ended June 30, 1999,
gives effect to Weatherford's proposed acquisition of Dailey as if the
transaction had occurred on January 1, 1999. The Unaudited Pro Forma Condensed
Consolidated Balance Sheet gives effect to the proposed acquisition as if this
transaction had occurred on June 30, 1999.

     The pro forma information set forth below is not necessarily indicative of
the results that actually would have been achieved had such transaction been
consummated as of the aforementioned dates, or that may be achieved in the
future. In particular, the pro forma financial statements do not give effect to
any cost savings or additional synergies that may be realized by us as a result
of the proposed acquisition. We currently expect to realize around $20 million
in annual cost savings and $8 million in additional annual margins from the
acquisition. These benefits are not reflected in the pro forma adjustments and
are subject to various uncertainties described below under "Forward Looking
Statements". As a result, while we currently expect to realize these benefits
from the acquisition, there can be no assurance that these benefits will be
fully realized.

     All other acquisitions by Weatherford are not material individually or in
the aggregate; therefore, pro forma information is not reflected. Because this
pro forma information is a summary, it does not contain all information that may
be important to you. You should also read the following:

     o    Weatherford's Management's Discussion and Analysis of Financial
          Condition and Results of Operations and its financial statements and
          related notes thereto contained in its Annual Report on Form 10-K for
          the year ended December 31, 1998.

     o    Weatherford's Quarterly Report on Form 10-Q for the period ended March
          31, 1999.

     o    Weatherford's Quarterly Report on Form 10-Q for the period ended June
          30, 1999.

     o    Weatherford's Current Report on Form 8-K dated May 21, 1999.

     o    Dailey's Management's Discussion and Analysis of Financial Condition
          and Results of Operations and its financial statements and related
          notes thereto contained in its Annual Report on Form 10-K for the year
          ended December 31, 1998.

     o    Dailey's Quarterly Report on Form 10-Q for the period ended March 31,
          1999.

     o    Dailey's Quarterly Report on Form 10-Q for the period ended June 30,
          1999.


                                       2
<PAGE>   2



                         WEATHERFORD INTERNATIONAL, INC.
            UNAUDITED PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET
                               AS OF JUNE 30, 1999
                                 (IN THOUSANDS)

<TABLE>
<CAPTION>
                                                       WEATHERFORD         DAILEY          PRO FORMA           WEATHERFORD
                                                       HISTORICAL        HISTORICAL       ADJUSTMENTS            PRO FORMA
                                                      ------------      ------------      ------------         ------------
<S>                                                   <C>               <C>               <C>                  <C>
ASSETS
Current assets:
   Cash and cash equivalents ....................     $     29,952      $     12,599      $    (11,042)(a)     $     31,509
   Accounts receivable, net .....................          368,157            27,718                --              395,875
   Inventories ..................................          499,951                --                --              499,951
   Other current assets .........................          148,215             7,369           (37,652)(b)          117,932
                                                      ------------      ------------      ------------         ------------
     Total current assets .......................        1,046,275            47,686           (48,694)           1,045,267
                                                      ------------      ------------      ------------         ------------

Property, plant and equipment, net ..............        1,016,032           144,719           (11,376)(c)        1,149,375
Goodwill, net ...................................          867,710            21,693            11,174 (d)          900,577
Other assets ....................................          111,082            23,481            (7,425)(e)          127,138
                                                      ------------      ------------      ------------         ------------
                                                      $  3,041,099      $    237,579      $    (56,321)        $  3,222,357
                                                      ============      ============      ============         ============

LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
   Short-term borrowings and current
     portion of long-term debt ..................     $    256,043      $        443      $         --         $    256,486
   Accounts payable .............................          110,894            10,442                --              121,336
   Other accrued liabilities ....................          181,232             4,081             7,893 (f)(g)       193,206
                                                      ------------      ------------      ------------         ------------
     Total current liabilities ..................          548,169            14,966             7,893              571,028
                                                      ------------      ------------      ------------         ------------

Long-term debt ..................................          228,457           275,068          (275,000)(e)          228,525
Minority interests ..............................          194,042                --                --              194,042
Deferred income taxes and other .................          165,368            14,265            (7,409)(f)          172,224
5% Convertible Subordinated Preferred
   Equivalent Debentures ........................          402,500                --                --              402,500

Stockholders' equity:
   Common stock .................................          108,484               106             4,245 (h)(i)       112,835
   Capital in excess of par .....................        1,137,333            53,117            94,007 (h)(i)     1,284,457
   Treasury stock, at cost ......................         (269,257)           (4,061)            4,061 (i)         (269,257)
   Retained earnings (deficit) ..................          607,703          (114,000)          114,000 (i)          607,703
   Accumulated other comprehensive loss .........          (81,700)           (1,882)            1,882 (i)          (81,700)
                                                      ------------      ------------      ------------         ------------
     Total stockholders' equity .................        1,502,563           (66,720)          218,195            1,654,038
                                                      ------------      ------------      ------------         ------------
                                                      $  3,041,099      $    237,579      $    (56,321)        $  3,222,357
                                                      ============      ============      ============         ============
</TABLE>


                                       3

<PAGE>   3

                         WEATHERFORD INTERNATIONAL, INC.
       UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS
                     FOR THE SIX MONTHS ENDED JUNE 30, 1999
                    (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)


<TABLE>
<CAPTION>
                                                  WEATHERFORD         DAILEY            PRO FORMA             WEATHERFORD
                                                  HISTORICAL        HISTORICAL         ADJUSTMENTS             PRO FORMA
                                                  -----------      -----------         -----------            -----------
<S>                                               <C>              <C>                 <C>                    <C>
Revenues ....................................     $   696,929      $    51,380         $      (704)(j)        $   747,605
                                                  -----------      -----------         -----------            -----------
Cost and Expenses:
   Cost of sales ............................         518,441           47,189              (1,314)(j)(k)         564,316
   Selling, general and administrative ......         155,000           16,726                 140 (l)            171,866
   Reorganization costs .....................              --            2,891                  --                  2,891
   Equity in earnings of unconsolidated
     affiliates .............................            (890)            (634)                 --                 (1,524)
                                                  -----------      -----------         -----------            -----------
                                                      672,551           66,172              (1,174)               737,549
                                                  -----------      -----------         -----------            -----------
Operating income (loss) .....................          24,378          (14,792)                470                 10,056
                                                  -----------      -----------         -----------            -----------
Other income (expense):
   Interest expense .........................         (26,287)         (11,388)             11,105 (m)            (26,570)
   Interest income ..........................           2,127              902              (1,122)(n)              1,907
   Other income, net ........................           2,422             (195)                 --                  2,227
                                                  -----------      -----------         -----------            -----------
                                                      (21,738)         (10,681)              9,983                (22,436)
                                                  -----------      -----------         -----------            -----------

Income (loss) before income taxes and
  minority interest..........................           2,640          (25,473)             10,453                (12,380)
Provision for income taxes ..................             796              873               3,659 (o)              5,328
                                                  -----------      -----------         -----------            -----------
Income (loss) before minority interest ......           1,844          (26,346)              6,794                (17,708)
Minority interest expense, net of taxes .....           1,326               --                  --                  1,326
                                                  -----------      -----------         -----------            -----------
Net income (loss) ...........................     $       518      $   (26,346)        $     6,794            $   (19,034)
                                                  ===========      ===========         ===========            ===========

Net income (loss) per share:
   Basic ....................................     $      0.01                                                 $     (0.19)
                                                  ===========                                                 ===========

   Diluted ..................................     $      0.01                                                 $     (0.19)
                                                  ===========                                                 ===========

Weighted average shares outstanding:
   Basic ....................................          97,451                                                     101,802(p)
                                                  ===========                                                 ===========

   Diluted ..................................          98,718                                                     101,802
                                                  ===========                                                 ===========
</TABLE>


                                       4

<PAGE>   4


         NOTES TO PRO FORMA CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

GENERAL

     The following notes set forth the assumptions used in preparing the
unaudited pro forma financial statements. The pro forma adjustments are based on
estimates made by Weatherford's management using information currently
available.

PRO FORMA ADJUSTMENTS

     The adjustments to the accompanying Unaudited Pro Forma Condensed
Consolidated Balance Sheet are described below:

     (a)  To record the cash payment of $11.0 million for transaction and
          severance costs.

     (b)  To reverse Weatherford's $33.7 million net investment (face value
          $64.7 million) in Dailey's 9 1/2% Senior Notes due 2008 (the "Senior
          Notes") and to write-off approximately $4.0 million of Dailey's
          prepaid transaction costs.

     (c)  To reflect the initial estimate of the write-down of Dailey's
          property, plant, and equipment to fair market value.

     (d)  To record the excess purchase price over the fair value of the net
          assets acquired.

     (e)  To reflect the retirement of the Senior Notes and the write-off of
          related debt issuance costs.

     (f)  To reverse $7.4 million in accrued interest and the $2.6 million
          income tax receivable related to the Senior Notes.

     (g)  To accrue $5.3 million for litigation and other contingencies relating
          to Dailey.

     (h)  To reflect the issuance of $195.0 million in shares of Weatherford
          common stock less $43.5 million in Weatherford common stock to be
          received by Weatherford in respect of the Senior Notes held by
          Weatherford. The net shares to be issued are approximately 4.4 million
          shares, valued at $34 13/16 per share, which was the closing market
          price on May 21, 1999. Of this amount, the Dailey shareholders will
          receive shares valued at $10.0 million and the balance of the shares
          will be issued to the holders of the Senior Notes other than
          Weatherford.

     (i)  To eliminate Dailey's equity, which consists of $0.1 million common
          stock, $53.1 million capital in excess of par, $4.1 million of
          treasury stock, $114.0 million of retained deficit, and $1.9 million
          of accumulated other comprehensive loss.

     The adjustments to the accompanying Unaudited Pro Forma Condensed
Consolidated Statements of Operations are described below:

     (j)  To eliminate revenues of $0.7 million and related costs of $0.2
          million associated with transactions between Dailey and Weatherford.

     (k)  To reverse depreciation expense of $1.1 million to reflect the
          write-down of property, plant, and equipment to fair market value.
          Such property, plant and equipment is being depreciated over five
          years.

     (l)  To record amortization of $0.1 million for goodwill related to
          acquisition of Dailey. Such goodwill is being amortized over 40 years.

     (m)  To eliminate interest expense to reflect the retirement of the Senior
          Notes.

     (n)  To eliminate Weatherford's interest income related to its investment
          in the Senior Notes.

     (o)  To record the income tax provision related to the effect of the pro
          forma adjustments at the statutory rate.

     (p)  Weatherford's historical shares outstanding and basic weighted average
          pro forma shares outstanding as of June 30, 1999, were 97,796,122 and
          101,801,882, respectively.


                                       5

<PAGE>   5


FORWARD-LOOKING STATEMENTS

     This report contains forward-looking statements relating to our proposed
acquisition of Dailey. We believe these statements constitute "forward-looking
statements" as defined in the Private Securities Litigation Reform Act of 1995.
Certain risks and uncertainties may cause actual results to be materially
different from projected results contained in forward-looking statements in this
report. In addition to the general market risks described in our Annual and
Quarterly Reports, which we encourage you to read, there exist risks and
uncertainties relating to the Dailey acquisition, including, but not limited to,
the following:

     o    BANKRUPTCY UNCERTAINTIES. Our acquisition of Dailey is subject to
          bankruptcy court approval. Although we have received agreements from
          the holders of more than two-thirds of the claims of Dailey's impaired
          creditors, there can be no assurance that the acquisition will be
          completed in a timely manner. Our pro forma financial statements
          assume that the acquisition of Dailey will be completed between 60 and
          120 days without any unexpected administrative costs and expenses or
          unknown claims against Dailey. To the extent the bankruptcy process
          takes longer than anticipated or claims, including severance, exceed
          those currently projected the costs of the acquisition could be
          greater than that set forth in the pro forma financial statements.

     o    COST SAVINGS. We currently expect that our acquisition of Dailey will
          allow us to realize around $20 million in annual cost savings through
          the elimination and reduction of overlapping costs. Our ability to
          achieve these savings will be dependent on our ability to integrate
          the operations of the acquired business, including personnel, systems
          and facilities.

     o    SYNERGIES. We currently expect to realize around $8 million annually
          in additional margins from the manufacture of our own drilling and
          fishing jars. These savings will be dependent on the ultimate amount
          of jar business conducted by us, which in turn will be dependent on
          market conditions. Our ability to realize these benefits will also be
          dependent on the timing of the conversion of our current jar lines to
          the Dailey jar line.

                                       6



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