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                                                                   EXHIBIT 10.18

                               FORM OF AMENDMENT
                                       TO
                         EXECUTIVE SEVERANCE AGREEMENT
                                     AND TO
                             STOCK PLAN AGREEMENTS

         THIS AMENDMENT TO EXECUTIVE SEVERANCE AGREEMENT AND TO STOCK PLAN
AGREEMENTS, made and entered into effective as of March 9, 1995 (the
"Agreement"), is by and between BJ SERVICES COMPANY, a Delaware corporation
(the "Company"), and (the "Employee").

                              W I T N E S S E T H:

         WHEREAS, the Company and the Employee have previously entered into an
Executive Severance Agreement dated effective as of
(the "Severance Agreement"); and

         WHEREAS, the Employee has outstanding certain stock options and
Performance Unit awards granted under the Company's 1990 Stock Incentive Plan
(the "Stock Plan"); and

         WHEREAS, the Company and the Employee desire to amend the Severance
Agreement and the Employee's outstanding agreements under the Stock Plan
("Stock Plan Agreements") to reflect the parties' mutual agreements as to the
consequences of the consummation of the acquisition of The Western Company of
North America by the Company pursuant to the Agreement and Plan of Merger dated
as of November 17, 1994, as amended (the "Western Acquisition") with respect to
the same;

         NOW, THEREFORE, for and in consideration of the premises and the
mutual covenants and agreements herein contained, the Company and the Employee
hereby agree that the Severance Agreement and Stock Plan Agreements are amended
as follows:

         A.      Severance Agreement

                 1.       Paragraphs (A), (C) and (D) of Section 2(iii) are
         amended to read as follows:

                          "(A)  The Employee is assigned any duties materially
         inconsistent with the Employee's positions, duties, responsibilities
         and status with the Company immediately prior to a Change in Control,
         or the Employee's reporting responsibilities, titles or offices are
         materially changed from those in effect immediately prior to such
         Change in Control, or the Employee is removed from or is not
         re-elected or appointed to any of such material responsibilities,
         titles, offices or positions, except in each case other than (i) in
         connection with the termination of the Employee's employment for Cause
         or Disability, (ii) as a result of the Employee's death, (iii) by the
         Employee for other than Good Reason, (iv) an isolated, insubstantial
         and inadvertent action not taken in bad faith and which is remedied by
         the Company promptly after receipt of notice thereof given by the
         Employee, or (v) any change, made following the Western Acquisition
         and prior to any other Change in Control of the
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         Company, that involves a reallocation or reassignment of the
         Employee's responsibility with no material reduction in the overall
         degree of the Employee's responsibility and no reduction in the
         Employee's compensation or level of title (e.g., Vice President); or

                                    * * * *

                          (C)   the Company fails to continue the Company's
         annual cash bonus plan for executives as the same may be modified from
         time to time, but substantially in the form in effect prior to the
         date of the Change in Control (the "Bonus Plan"), or fails to continue
         the Employee as a participant in the Bonus Plan, or reduces the
         Employee's "Expected Value" guideline percentage under the Bonus Plan
         from that in effect immediately prior to a Change in Control or as
         increased thereafter with respect to the Employee (the product of such
         Expected Value percentage, as so increased, if applicable, but prior
         to such reduction, and the Employee's Base Salary is referred to
         hereinafter as the "Bonus Amount"), but excluding a modification or
         termination of the Bonus Plan or a general change in the Expected
         Value guidelines thereunder for a class or classes of participants
         that (i) is made following the Western Acquisition and prior to any
         other Change in Control of the Company, (ii) affects participants in
         such plan in general and (iii) when combined with other Company plans,
         does not result in any reduction in the overall possible incentive
         compensation to the Employee; or

                          (D)  the Company fails to continue in effect any
         material benefit or compensation plan, including, but not limited to,
         the Company's 1990 Stock Incentive Plan, 1995 Incentive Plan (after
         its approval by the stockholders) (the "1995 Plan"), qualified
         retirement plan, executive life insurance plan, and/or health and
         accident plan, in which the Employee is participating immediately
         prior to a Change in Control, or plans providing the Employee with
         substantially similar benefits, or the Company takes any action that
         would materially adversely affect the Employee's participation in or
         reduce the Employee's benefits under any of such plans, excluding any
         such action by the Company that (i) is required by law or (ii) is made
         following the Western Acquisition and prior to any other Change in
         Control of the Company, and affects participants in such plan in
         general; or"

                 2.       Subparagraph (D) of Section 3(iii) is amended as
         follows:

                          "(D)  if the Date of Termination occurs on or
         following the Western Acquisition and prior to the date of any other
         Change in Control, (1) an amount, with respect to all outstanding
         unvested and unexercisable awards that have been granted the Employee
         after January 1, 1995, under the Company's 1990 Stock Inventive Plan,
         the 1995 Plan (excluding the stock options granted to the Employee on
         February 15, 1995, under the 1995 Plan), or any successor or similar
         stock compensation plan, equal to the sum of (a) the value of all such
         unvested or unearned shares of Performance Stock, Performance Units
         and any other performance awards thereunder, determined as if all
         restrictions had lapsed and all performance goals had been achieved to
         the fullest extent, and (b) the excess of the closing





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         price of the common shares of the Company stock on the Date of
         Termination as reported on the national exchange on which the trading
         volume for such stock is highest over the exercise price of each such
         unexercisable option and appreciation right; and (2) if the Date  of
         Termination occurs on or after the date of any Change in Control that
         occurs before or after the Western Acquisition, an amount, with
         respect to all outstanding unvested and unexercisable awards that have
         been granted Employee after such Change in Control under the Company's
         1990 Stock Incentive Plan, the 1995 Plan or any successor or similar
         stock compensation plan, equal to the sum of (a) the value of all such
         unvested (or unearned) shares of Performance Stock, Performance Units
         and any other performance awards thereunder (determined as if all
         restrictions had lapsed and all performance goals had been  achieved
         to the fullest extent) and (b) the excess of the closing price of the
         common shares of the Company stock on the Date of Termination as
         reported on the national exchange on which the trading volume for such
         stock is highest over the exercise price of each such unexercisable
         option and appreciation right; and"

                 3.       Subparagraph (E) of Section 3(iii) is amended by
         adding thereto a new sentence to read as follows:

                          "Notwithstanding anything in this subparagraph (E) to
         the contrary, the continued welfare plan coverages provided hereunder,
         including any COBRA coverage, shall be provided to the Employee (and
         the Employee's dependents) by the Company without any cost (whether a
         premium or otherwise)."

                 4.       Section 8 is amended by adding thereto the following:

                          "Notwithstanding anything in this Agreement to the
         contrary, the consummation of the acquisition of The Western Company
         of North America by the Company pursuant to the Agreement and Plan of
         Merger dated as of November 17, 1994, as amended, shall constitute a
         Change in Control of the Company for all purposes under this
         Agreement."

         B.      Stock Plan Agreements

         Notwithstanding anything to the contrary in the Stock Plan or in any
Award Agreement of the Employee thereunder, the Western Acquisition shall not
constitute a Change in Control of the Company and effective with the Western
Acquisition:

                 (1)                          of the Employee's Performance
                 Units that are outstanding on the date of the Western
                 Acquisition shall be vested on that date and paid in shares as
                 soon as reasonably practicable thereafter and the remainder of
                 all such Performance Units of the Employee that are not vested
                 on the date of the Western Acquisition shall be immediately
                 canceled unpaid on that date; and





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                 (2)  the tandem contingent income tax cash bonus granted to
                 Employee under the Company's Tax Reimbursement Plan with
                 respect to the above-vested Performance Units (the "Tax
                 Bonus") shall be paid at the time that withholding is required
                 with respect to the payment of the above- vested Performance
                 Units, to the extent payment is necessary to satisfy the
                 withholding obligation thereon and on the portion of the Tax
                 Bonus then paid, and the remainder of the Tax Bonus shall be
                 paid at such time or times as the Company determines to be
                 appropriate, but not later than the April 15th following the
                 calendar year in which the above-vested Performance Units
                 become taxable to the Employee; and
        
                 (3)  all unexercisable stock options granted to the Employee
                 pursuant to the Stock Plan that are outstanding on the date of
                 the Western Acquisition shall continue to remain outstanding
                 thereafter in accordance with their terms unaffected by the
                 Western Acquisition; provided, however, in the event the
                 Employee's employment with the Company and its affiliates (or
                 any successor) is terminated for any reason, other than for
                 Cause, within twenty-four (24) months following the date of
                 the Western Acquisition, all stock options of the Employee
                 that were granted prior to January 1, 1995, under the Stock
                 Plan and which remain outstanding on the date of such
                 termination of employment shall be fully exercisable as of the
                 date of the employee's termination (to the extent not already
                 fully exercisable) and shall remain fully exercisable for the
                 one-year period following the date of the Employee's
                 termination, unless any other provision of the Stock Plan
                 provides a longer period for the exercise of such options (but
                 in no event later than the Nonqualified Option Expiration Date
                 or the Incentive Stock Option Expiration Date, as such terms
                 are defined in the Stock Plan, whichever is applicable).

         IN WITNESS WHEREOF, the Company and the Employee have entered into
this Amendment, effective for all purposes as of the day and year first above
written.

                                        BJ SERVICES COMPANY


                                        By:
                                           ------------------------------------



                                        EMPLOYEE


                                        By:
                                           ------------------------------------





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