Oil States International, Inc. announced that its Board of Directors elected Hallie A. Vanderhider as a member of its Board of Directors. Ms. Vanderhider has been appointed as a Class III Director with an initial term expiring in May 2022 and will serve on the Company's Audit Committee. Ms. Vanderhider is currently Managing Director with SFC Energy Partners. Prior to joining SFC Energy Partners, Hallie served as Managing Partner of Catalyst Partners LLC.