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Jeffrey W. Sheets, 61, has been a director of the Company since October 2019. Sheets served as Executive Vice President and Chief Financial Officer of ConocoPhillips Company from October 2010 to February 2016, and prior to that served at ConocoPhillips and its predecessor companies for more than 36 years in a variety of roles, including Senior Vice President of Planning and Strategy and Vice President and Treasurer. Since December 2017, Sheets has served on the board of directors of Enerplus Corporation, where he is a member of the audit and risk management, compensation and human resources, and safety and social responsibility committees. He also has served since January 2018 on the board of directors of Westlake Chemical Corporation, where he chairs the nominating and governance committee and is a member of the audit, compensation and corporate risk committees. Sheets is a member of the Board of Trustees at the Missouri University of Science and Technology.