Exhibit 99.1

                               BJ Services Company
                          5500 Northwest Central Drive
                              Houston, Texas 77092

                                  May 14, 2003

Securities and Exchange Commission
450 Fifth Street, N.W.
Washington, D.C. 20549-0405

Re:  CEO/CFO Certifications Pursuant to 18 U.S.C. Section 1350, As adopted
     pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

     In connection with the Quarterly Report of BJ Services Company (the
"Company") on Form 10-Q for the quarterly period ended March 31, 2003, as filed
with the Securities and Exchange Commission on the date hereof (the "Report"),
I, J.W. Stewart, Chief Executive Officer of the Company, certify, pursuant to 18
U.S.C. (S) 1350, as adopted pursuant to (S) 906 of the Sarbanes-Oxley Act of
2002, that, to the best of my knowledge:

     (1) The Report fully complies with the requirements of Section 13(a) or
15(d) of the Securities Exchange Act of 1934; and

     (2) The information contained in the Report fairly presents, in all
material respects, the financial condition and results of operations of the
Company.


BY /s/ J.W. Stewart
   --------------------------------
J.W. Stewart
Chief Executive Officer
May 14, 2003