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Mr. Pressler has served as a director since 2011, and is Chairman of the Board of the Company, having been appointed Chairman in September 2017. He was also appointed Executive Chairman of the Company in September 2017, and effective December 31, 2019, he retired as Executive Chairman. Mr. Pressler is President and founder of Tepee Petroleum, an independent oil and gas producer based in Houston, that he founded in 1978. He was also the founder and chairman of VSO Inc. (formerly Pressler Petroleum Consultants, Inc.), which provides engineering consulting services and appraisals, which he founded in 1985, and he divested his interest in October 2018. Prior to 1985, Mr. Pressler was President of Philip Hill Energy, President of Republic Oil and Gas Corp., and Chief Petroleum Engineer for Barnhart Co. after his initial years with Exxon. Mr. Pressler is a 1959 graduate of the University of Texas and holds a Bachelor of Science in Petroleum Engineering and is a Registered Professional Engineer.