Age: 76 Director since: January 2016 Board Committees: Executive Compensation Committee Nominating and Governance Committee Co-Founder and Partner of EnCap Investments L.P. ( EnCap ) (a leading provider of growth capital to independent energy companies) since 1988; President of PMC Reserve Acquisition Company (a partnership jointly owned by EnCap and Pitts Energy Group) from 1988 to 1996; Co-Chief Executive Officer and Co-Founder of MAZE Exploration Inc. (a Denver-based oil and gas company) from 1981 to 1988; Chair of Southern Methodist University Board of Trustees (a nationally ranked private university in Dallas, Texas), member since 2008 Skills and Experience: Having started his professional career in the banking industry, Mr. Miller provides considerable expertise to the Board in the areas of banking and finance. His executive leadership experience includes serving as the Managing Partner of a private equity firm that he co-founded. In that capacity, Mr. Miller directly engaged with institutional investors on ESG practices in the energy industry, including numerous large pension funds and university endowments. In addition to having served on the boards of four other publicly traded companies in the energy sector, Mr. Miller has served on the boards of numerous private oil and gas exploration and production companies. He is also a member of the National Petroleum Council, an advisory committee to the Secretary of Energy. Mr. Miller s broad energy industry knowledge and his leadership experience and expertise in business valuation, capital structure and strategic relationships complement the collective strength and leadership of our Board.