Washington, D.C. 20549


Proxy Statement Pursuant to Section 14(a) of the
Securities Exchange Act of 1934 (Amendment No. )
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The following material amends and supplements our definitive proxy statement filed with the Securities and Exchange Commission on March 23, 2018 (the “Proxy Statement”) relating to the 2018 Annual Meeting of Stockholders of Oil States International, Inc. (the “Company”), to be held at the Two Allen Center, 1200 Smith Street, 12th Floor, Forum Room, Houston, Texas, 77002, on the 8th day of May, 2018 at 9:00 a.m. central daylight time. This supplement provides a minor addition to the information on page 23 of the Proxy Statement. The paragraph under the caption “Board and Committee Meetings; Attendance” regarding directors’ attendance at Board and committee meetings should read as follows:

During 2017, the entire Board of Directors held eight meetings, the Audit Committee held five meetings, the Compensation Committee held four meetings and the Nominating & Corporate Governance Committee held five meetings. Each of the directors attended at least 85% of the meetings of the Board of Directors and the committees of the Board of Directors on which they served with the exception of Mr. Papa who attended at least 70% of the meetings. While we understand that scheduling conflicts may arise, we expect directors to make reasonable efforts to attend the Annual Meeting of Stockholders and all meetings of the Board of Directors and the committees on which they serve. In 2017, each of the directors attended the Annual Meeting of Stockholders.

All information set forth in the Proxy Statement, as supplemented by the information above, remains accurate in all material respects and should be considered in casting your vote by proxy or at the Annual Meeting.

The date of this material is April 3, 2018.