Guillermo “Bill” Martinez has been involved in the oil and gas business since 1989. He started his career with Exxon and held various operational and technical roles, as well as asset development and leadership roles in increasing areas of responsibility. He left ExxonMobil in 2003 and has worked for Burlington Resources, Anadarko Petroleum, and Chesapeake Energy in various leadership roles responsible for asset management and business delivery for a variety of assets including West Texas, Deepwater GOM, and Eagle Ford. He joined MEPUSA in 2019 as Senior Vice President of Operations to help guide Mitsui’s efforts to expand our influence and become a US Onshore operator. In October 2020, Bill was promoted to Executive Vice President and Chief Operating Officer.