Mr. Halverson has served as a director of Patterson-UTI since September 2023. Mr. Halverson served as a member of NexTier’s board of directors from September 2016 to September 2023. In 2016, Mr. Halverson became a Senior Advisor at First Reserve, a private equity firm that focuses on energy investments, and a Partner at 360 Development Partners, a commercial real estate firm. Mr. Halverson was formerly Group President of Drilling and Production Systems and Senior Vice President at Cameron International Corporation from 2014 to 2016 prior to its sale to Schlumberger in 2016. He has over 38 years of industry experience with Cameron, where he worked in various leadership roles across the U.S., Latin America and Asia. Mr. Halverson currently serves as Chairman of the Board of Directors of the Petroleum Equipment Suppliers Association, as a director on the board of the General Committee of Special Programs of the American Petroleum Institute, as a director on the board of the Well Control Institute, as a director on the board of FlexSteel Pipeline Technologies, Inc. and was the U.S. delegate to the World Petroleum Congress.