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                                                                    EXHIBIT 10.3



August 7, 1996

________________________________________________________________________________





                              BJ SERVICES COMPANY
                            BJ SERVICES COMPANY, USA
                         BJ SERVICE INTERNATIONAL, INC.
                        BJ SERVICES COMPANY MIDDLE EAST




                       FOURTH AMENDMENT TO NOTE AGREEMENT




                           Dated as of August 7, 1996




         Re:        Note Agreement Dated As of August 1, 1991
                                      and
                         $30,000,000 9.20% Senior Notes
                               Due August 1, 1998





________________________________________________________________________________

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                              BJ SERVICES COMPANY
                            BJ SERVICES COMPANY, USA
                         BJ SERVICE INTERNATIONAL, INC.
                        BJ SERVICES COMPANY MIDDLE EAST

                       FOURTH AMENDMENT TO NOTE AGREEMENT

      Re:          Note Agreement Dated as of August 1, 1991
                                      and
                         $30,000,000 9.20% Senior Notes
                               Due August 1, 1998


                                                                     Dated as of
                                                                  August 7, 1996



Principal Mutual Life Insurance Company
711 High Street
Des Moines, Iowa  50392-0800

Connecticut Mutual Life Insurance Company
140 Garden Street
Hartford, Connecticut  06154



Ladies and Gentlemen:

         Reference is made to the separate Note Agreements each dated as of
August 1, 1991, as amended to the date hereof (collectively, the "Note
Agreement"), between and among BJ Services Company, BJ Services Company, USA,
BJ Service International, Inc., BJ Services Company Middle East, each a
Delaware corporation (collectively, the "Constituent Companies"), and you,
under and pursuant to which $30,000,000 aggregate principal amount of Senior
Notes Due August 1, 1998 (the "Notes") were originally issued.

         The Constituent Companies desire to amend certain provisions of the
Note Agreement in connection with the acquisition of the shares of stock issued
by Nowsco Well Service Ltd., an





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Alberta, Canada corporation and the amalgamation of BJ Services Canada, Inc.,
an Alberta, Canada corporation with said Nowsco Well Service Ltd., and the
entry by the Constituent Companies into an Amended and Restated Credit
Agreement dated as of August 7, 1996, among the Constituent Companies, Nowsco
Well Service Ltd., and the other Subsidiary Borrowers from time to time party
thereto, Bank of America National Trust and Savings Association, Individually,
as U.S. Agent, Letter of Credit Issuing Bank, and Swing Loan Bank; Bank of
America Canada, Individually and as Canadian Agent; The Chase Manhattan Bank,
N.A., individually and as Senior Co-Agent; Bank of Montreal, Royal Bank of
Canada, Toronto Dominion (Texas), Inc., Credit Lyonnais New York Branch, and
Wells Fargo Bank (Texas), National Association, each Individually and as
Co-Agent; and the other financial institutions from time to time parties
thereto.  The Constituent Companies hereby request that you accept the
amendments as set forth below in the manner herein provided.  All capitalized
terms used herein without definition shall have the same meanings respectively
assigned to such terms in the Note Agreement.

SECTION 1.       AMENDMENTS TO SECTION 5 OF THE NOTE AGREEMENT.

         (a)     Section 5 of the Note Agreement shall be and is hereby amended
by deleting therefrom the following Sections:  Sections 5.5 through 5.14, both
inclusive.

         (b)     Section 5.1 of the Note Agreement shall be, and is hereby
amended to read, as follows:

                 "Each of the Constituent Companies will preserve and keep in
         full force and effect, and will cause each Restricted Subsidiary to
         preserve and keep in full force and effect, its respective corporate
         existence and all licenses and permits except where the failure to
         preserve or keep such licenses and permits would not have a materially
         adverse effect upon the properties, business or financial condition of
         the Company and its Restricted Subsidiaries, taken as a whole,
         provided that the foregoing shall not prevent any transaction
         otherwise permitted by this Agreement."





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         (c)     Section 5.3 of the Note Agreement shall be, and is hereby
amended to read, as follows:

                 "Each of the Constituent Companies will promptly pay and
         discharge, and will cause each Restricted Subsidiary promptly to pay
         and discharge, all lawful taxes, assessments and governmental charges
         or levies imposed upon such Constituent Company or such Restricted
         Subsidiary, respectively, or upon or in respect of all or any part of
         the property or business of such Constituent Company or such
         Restricted Subsidiary, all trade accounts payable in accordance with
         usual and customary business terms, and all claims for work, labor or
         materials, which if unpaid might become a Lien upon any property of
         such Constituent Company or such Restricted Subsidiary; provided such
         Constituent Company or such Restricted Subsidiary shall not be
         required to pay any such tax, assessment, charge, levy, account
         payable or claim if (i) the validity, applicability or amount thereof
         is being contested in good faith by appropriate actions or proceedings
         which will prevent the forfeiture or sale of any property of such
         Constituent Company or such Restricted Subsidiary or any material
         interference with the use thereof by such Constituent Company or such
         Restricted Subsidiary, and (ii) such Constituent Company or such
         Restricted Subsidiary shall set aside on its books, reserves deemed by
         it to be adequate with respect thereto.  Each of the Constituent
         Companies will promptly comply and will cause each Restricted
         Subsidiary to comply with all laws, ordinances or governmental rules
         and regulations to which it is subject including, without limitation,
         the Occupational Safety and Health Act of 1970, as amended, ERISA and
         all laws, ordinances, governmental rules and regulations relating to
         environmental protection in all applicable jurisdictions, the
         violation of which could materially and adversely affect the
         properties, business or financial condition of the Company and its
         Restricted Subsidiaries, taken as a whole, or would result in any
         "Lien" (as defined for purposes of Section 8.01 of the Bank Credit
         Agreement, which Section 8.01 is incorporated into this Agreement by
         reference pursuant to the Fourth Amendment to Note Agreement) not
         permitted by said Section 8.01."





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         SECTION 2.       INCORPORATION OF CERTAIN COVENANTS.

         "The following provisions of the Bank Credit Agreement in the form
attached hereto as the same may be subsequently modified or amended provided
that any such amendments or modifications are consented to in writing by the
holders of at least seventy percent (70%) of the aggregate outstanding
principal amount of the Notes are hereby incorporated by reference into the
Note Agreement with the same force and effect as though therein set forth in
full, in each case together with all related definitions set forth in the Bank
Credit Agreement as the same may be subsequently modified or amended provided
that any such amendments or modifications are consented to in writing by the
holders of at least seventy percent (70%) of the aggregate outstanding
principal amount of the Notes:  Sections 8.01 through 8.05, both inclusive,
Sections 8.08, 8.09 and Sections 8.12 through 8.16, both inclusive; provided,
however, that the terms"Default" and "Event of Default" referred to in Section
8.03 and Section 8.15 incorporated herein by reference shall refer to such
terms as defined in the Note Agreement.  All provisions incorporated by
reference shall remain effective for purposes of the Note Agreement unless and
until the Notes shall no longer remain outstanding."

SECTION 3.       AMENDMENTS TO SECTION 5.18 OF THE NOTE AGREEMENT.

         Section 5.18(f) of the Note Agreement shall be and is hereby amended
to read as follows:

                 "(f)     Officer's Certificates.  Within the periods provided
         in paragraphs (a) and (b) above, a certificate of an authorized
         financial officer of the Company stating that such officer has
         reviewed the provisions of this Agreement and setting forth:  (i) a
         compliance certificate in the form attached to the Bank Credit
         Agreement, and (ii) whether there existed as of the date of such
         financial statements and whether, to the best of such officer's
         knowledge, there exists on the date of the certificate or existed at
         any time during the period covered by such financial statements any
         Default or Event of Default and, if any such condition or event exists
         on the date of the certificate, specifying the nature and period of
         existence thereof and the action the Company is taking and proposes to
         take with respect thereto;"





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SECTION 4.       AMENDMENTS TO SECTION 6.1 OF THE NOTE AGREEMENT.

         (a)     Sections 6.1(d) and (e) of the Note Agreement shall be and are
hereby revised to change the references therein to "$1,000,000" from
"$1,000,000" to "$35,000,000."

         (b)     Section 6.1(f) of the Note Agreement shall be and is hereby
deleted, and the following language shall be substituted therefor:

                 "(f)(i)  The Constituent Companies or any other Borrower (as
         defined in the Bank Credit Agreement) shall fail to perform or observe
         any term, covenant or agreement contained in Sections 8.02, 8.03,
         8.10, 8.12 through 8.16, both inclusive, of the Bank Credit Agreement
         and incorporated herein by reference pursuant to the Fourth Amendment
         to Note Agreement or (ii) the Constituent Companies or any other
         Borrower shall fail to perform or observe any other term, covenant or
         agreement contained in any of Sections 8.01, 8.04, 8.05, 8.08 or 8.09
         of the Bank Credit Agreement and incorporated herein by reference
         pursuant to the Fourth Amendment to Note Agreement, and such default
         shall continue unremedied for a period of 20 days after the earlier of
         (x) the date upon which a Responsible Officer of the Constituent
         Companies reasonably should have known of such default, or (y) the
         date upon which written notice thereof is given to the Constituent
         Companies by any holder of the Notes."

         (c)     Section 6.1(i) of the Note Agreement shall be and is hereby
revised to change the reference therein to $500,000" from "$500,000" to
"$35,000,000."

SECTION 5.       AMENDMENTS TO DEFINITIONS.

         The following definitions shall be added to Section 8.1 of the Note
Agreement to read as follows:





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                 "Bank Credit Agreement" shall mean that certain Amended and
         Restated Credit Agreement dated as of August 7, 1996 among the
         Constituent Companies, Nowsco Well Service Ltd., and the other
         Subsidiary Borrowers from time to time Parties thereto; Bank of
         America National Trust and Savings Association, Individually, as U.S.
         Agent, Letter of Credit Issuing Bank and Swing Loan Bank; Bank of
         America Canada, Individually and as Canadian Agent; The Chase
         Manhattan Bank, N.A., individually and as Senior Co-Agent; Bank of
         Montreal, Royal Bank of Canada, Toronto Dominion (Texas), Inc., Credit
         Lyonnais New York Branch, and Wells Fargo Bank (Texas), National
         Association, each Individually and as Co-Agent; and the other
         financial institutions parties thereto, in the form attached hereto
         (and without amendment or modification, except as may be subsequently
         consented to in writing by the holders of at least seventy percent
         (70%) of the aggregate outstanding principal amount of the Notes.

                 "Second Amendment to Note Agreement" shall mean that certain
         Second Amendment to Note Agreement dated September 19, 1995 by and
         among the Constituent Companies and the Purchasers.

                 "Third Amendment to Note Agreement" shall mean that certain
         Third Amendment to Note Agreement executed to be effective as of
         September 19, 1995 by and among the Constituent Companies and the
         Purchasers.

                 "Fourth Amendment to Note Agreement" shall mean that certain
         Fourth Amendment to Note Agreement dated August 7, 1996 by and among
         the Constituent Companies and the Purchasers.

SECTION 6.       MISCELLANEOUS.

         Section 2.1      Effective Date; Replacement of Second Amendment and
Third Amendment; Ratification.  The amendments contemplated by this Fourth
Amendment to Note Agreement shall be effective as of August 7, 1996.  This
Fourth Amendment shall supersede and replace the terms





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and provisions of the Second Amendment to Note Agreement and Third Amendment to
Note Agreement. Except as amended herein, the terms and provisions of the Note
Agreement are hereby ratified, confirmed and approved in all respects.

         Section 2.2      Ratification of Original Note Agreements; Condition
Precedent.  Except as amended herein, the terms and provisions of the Note
Agreement and the Notes are hereby ratified, confirmed and approved in all
respects.

         Section 2.3      Successors and Assigns.  This Fourth Amendment to
Note Agreement shall be binding upon the Constituent Companies and their
successors and assigns and shall inure to the benefit of the holders of the
Notes and to the benefit of their successors and assigns, including each
successive holder or holders of any Notes.

         Section 2.4      Counterparts.  This Fourth Amendment to Note
Agreement may be executed in any number of counterparts, each executed
counterpart constituting an original but all together one and the same
instrument.

         Section 2.5      No Legend Required.  Any and all notices, requests,
certificates and other instruments including, without limitation, the Notes,
may refer to the Note Agreement without making specific reference to this
Fourth Amendment to Note Agreement, but nevertheless all such references shall
from and after the date hereof be deemed to include this Fourth Amendment to
Note Agreement unless the context shall otherwise require.

         Section 2.6      No Defaults or Events of Default; Representations and
Warranties are True and Correct.  Each of the Constituent Companies jointly and
severally represents and warrants that no Default or Event of Default, in
either case which has not been waived, has occurred and is continuing.  The
representations and warranties made by the Constituent Companies in Exhibit B
of the Note Agreement are true and correct in all material respects as of the
date hereof, except such representations and warranties, if any, which
expressly refer to an earlier date, which representations and warranties are
true and correct in all material respects as of such earlier date.





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         Section 2.7      Governing Law.  This Fourth Amendment to Note
Agreement shall be construed in accordance with and governed by the laws of the
State of Connecticut.

         IN WITNESS WHEREOF, the parties hereto have executed this Fourth
Amendment to Note Agreement to be effective as of August 7, 1996.


                                       BJ SERVICES COMPANY


                                       By:                                     
                                                -------------------------------
                                                Its Treasurer                  
                                                                               
                                                                               
                                       BJ SERVICES COMPANY, USA                
                                                                               
                                                                               
                                       By:                                     
                                                -------------------------------
                                                Its Treasurer                  
                                                                               
                                                                               
                                       BJ SERVICE INTERNATIONAL, INC.          
                                                                               
                                                                               
                                       By:                                     
                                                -------------------------------
                                                Its Treasurer                  
                                                                               
                                                                               
                                                                               
                                                                               
                                       BJ SERVICES COMPANY MIDDLE EAST         
                                                                               
                                                                               
                                       By:                                     
                                                -------------------------------
                                                Its Treasurer






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Accepted on the ______ day of August, 1996.



                                       PRINCIPAL MUTUAL LIFE INSURANCE COMPANY
                                       
                                       
                                       
                                       By:                                     
                                                -------------------------------
                                                Its:                           
                                                     --------------------------
                                                                               
                                                                               
                                                                               
                                       By:                                     
                                                -------------------------------
                                                Its:                           
                                                     --------------------------
                                       




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Accepted on the ______ day of August, 1996.



                                       CONNECTICUT MUTUAL LIFE INSURANCE COMPANY
                                       
                                       
                                       
                                       By:                                     
                                                -------------------------------
                                                Its:                           
                                                     --------------------------
                                       




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