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Donald R. Sinclair


Donald R. Sinclair is an investor in the oil and gas industry and is currently Chairman and President of WTX Pumping Services LLC. He retired from Anadarko Petroleum Corporation in February 2018 where he was serving as a Senior Advisor. From 2009 to 2017, he served as Chief Executive Officer of Western Gas Partners, LP, from 2012 to 2017 he also served as Chief Executive Officer of Western Gas Equity Partners, LP. While serving as Chief Executive of the Western Gas entities, he also served as a Senior Vice President of Anadarko from 2013 to 2017.

Prior to joining Anadarko and Western Gas, Mr. Sinclair was a founding partner of Ceritas Energy, LLC, a midstream energy company headquartered in Houston with operations in Texas, Wyoming and Utah, and served as its President from 2003 to 2009.

Mr. Sinclair has worked in the oil and gas industry for over 35 years, with a focus on marketing and trading and the midstream sector. He is a Director of Ascent Resources, LLC, a private upstream company located in Oklahoma City, Oklahoma. He is also a Director of Alta Mesa Resources (NASDAQ: AMR) an upstream company focused on the STACK play in the Anadarko Basin of Oklahoma. He is the former Chairman of the Advisory Council for the Rawls College of Business at Texas Tech University, a member of the Executive Committee and the Vice Chairman of the Texas Tech Foundation, Inc., and a member of the Bob L. Herd Academy of Petroleum Engineering at Texas Tech. He serves as a Trustee of St. Luke’s United Methodist Church, and is on The University of Texas MD Anderson Cancer Center Board of Visitors. He earned a Bachelor of Business Administration in Management from Texas Tech University.

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