EX-32.1 9 h13197exv32w1.txt CERTIFICATION OF CEO PURSUANT TO SECTION 906 Exhibit 32.1 CERTIFICATION OF CHIEF EXECUTIVE OFFICER OF OIL STATES INTERNATIONAL, INC. PURSUANT TO 18 U.S.C. SECTION 1350 In connection with the accompanying report of Form 10-K for the year ended December 31, 2003 filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Douglas E. Swanson, President and Chief Executive Officer of Oil States International, Inc. (the "Company"), hereby certify, to my knowledge, that: 1. The Report fully complies with the requirement 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. /s/ Douglas E. Swanson ------------------------------ Name: Douglas E. Swanson Date: March 5, 2004 This certification is furnished solely pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not be deemed to be a part of the Report or "filed" for any purpose whatsoever.