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Board of Directors

Mark Erickson, Chairman & CEO
See Leadership section

Matt Owens, President
See Leadership section

Marvin M. Chronister, Director
Mr. Chronister serves as a member of the board of directors of Extraction Oil & Gas. Mr. Chronister is currently the owner of Enfield Companies, which is engaged in consulting and investment activities in the oil and gas sector. Mr. Chronister previously served as Interim Chief Executive Officer and Interim President of Bonanza Creek Energy, Inc., a domestic energy exploration and production company, from January 2014 until November 2014 and as a director of Bonanza Creek Energy, Inc., from 2011 to June 2016. From September 2009 until December 2010, Mr. Chronister served as Chairman and interim CEO of Sonde Resources Corp., an oil and gas exploration and production company focused on Western Canada and North Africa, where he also served as a director from 2009 to 2012. Mr. Chronister's prior professional experience includes roles at Deloitte & Touch, LLP, Kidder Peabody, Merrill Lynch, Transwestern Investments, Kiddie Corporation, and N.L. Industries. Mr. Chronister has previously served on the boards of Saratogo Resources, Inc., Harken Energy Corporation, Creel Energy Corporation, Resource Development Corporation, Transwestern Investments, Inc., and Electro-Marine, Inc. Mr. Chronister holds a Bachelor of Business Administration degree from Stephen F. Austin State University.

John Gaensbauer, Director
Mr. Gaensbauer serves as a member of the board of directors of Extraction Oil & Gas. Mr. Gaensbauer has an extensive background in international mining and natural resources transactions and finance. Mr. Gaensbauer is currently a Managing Director in the Natural Resources Group at Headwaters MB, a Denver-based investment banking firm. Prior to joining Headwaters, Mr. Gaensbauer was a founding partner at Sierra Partners LLC, a Denver-based, private advisory group providing strategic advisory services to clients in the global resources industry. Prior to Sierra Partners, Mr. Gaensbauer served as Group Executive, Investor Relations for Newmont Mining Corporation (NYSE: NEM). Prior to that, Mr. Gaensbauer served as in-house counsel to Newmont, managing the legal affairs and transactions for Newmont's West African, Central Asian and European operations, as well as counsel to Newmont’s Treasury Group and Newmont Capital, Newmont’s in-house merchant banking group. Prior to joining Newmont, Mr. Gaensbauer practiced corporate and transactional law at Ballard Spahr LLP. Mr. Gaensbauer holds a BA degree from Cornell University and Masters of Finance and JD degrees from the University of Denver.

Peter A. Leidel, Director
Mr. Leidel serves as a member of the board of directors of Extraction Oil & Gas. Mr. Leidel is a founder and principal of Yorktown Partners LLC, which was established in September 1990. Yorktown Partners LLC is the manager of private investment partnerships that invest in the energy industry. He has been a member of the board of directors of PRE Resources since June 2012 and of Extraction Oil & Gas since its inception. Previously, he was a partner of Dillon, Read & Co. Inc., held corporate treasury positions at Mobil Corporation and worked for KPMG and for the U.S. Patent and Trademark Office. Mr. Leidel is also a director of certain non-public companies in the energy industry in which Yorktown holds equity interests. He holds a BBA degree in accounting from the University of Wisconsin and an MBA from the Wharton School at the University of Pennsylvania.

Pat O’Brien, Director
Mr. O’Brien is an investor and Strategic Advisor to Extraction Oil & Gas. From 2003 until 2010, he served as CEO of American Oil & Gas, which was acquired by Hess Corporation. Mr. O'Brien co-founded Tower Colombia Corporation in 1995 and served as its CEO and President. He co-founded Tower Energy in 1984 and Tower Drilling Company in 1980. In 1980, he joined Montana Power Company as Senior Petroleum Engineer with the responsibility for design, long-range planning and performance economics for its exploration and development programs. He joined the Colorado Interstate Gas Company in 1974, where he was responsible for the design, acquisition and development of company-owned gas storage fields. Mr. O’Brien began his career in the oil and gas industry with the Dowell Division of Dow Chemical Company, where he engineered and supervised all phases of well stimulation and cementing. He has over 30 years of experience working the DJ Basin and the Powder River Basin. Mr. O'Brien received his BS in Petroleum Engineering from the Montana Tech.

Donald L. Evans
With over 40 years of energy industry and public service experience, including five years as the United States Secretary of Commerce under President George W. Bush, Secretary Evans brings extensive public energy company and operating expertise and knowledge to Extraction’s Board. He currently serves as Chairman of the George W. Bush Foundation Board of Directors and is Chairman of Energy Future Holdings. Secretary Evans is also a senior partner at Quintana Capital Group and senior advisor at Energy Capital Partners, member of the advisory board of the Energy Institute at the University of Texas at Austin and a member of the board of visitors at MD Anderson Cancer Center in Houston. From 1985 to 2001, he served as CEO of NYSE-listed Tom Brown, Inc., a large Midland, Texas-based contract drilling company and independent exploration and production company. He entered the oil and gas industry as roughneck on Tom Brown drilling rigs in 1975.

Wayne W. Murdy
Mr. Murdy retired as Chairman and CEO of Newmont Mining Corporation in 2007. He joined Newmont in 1992 and served as Chief Financial Officer and later President prior to being elected CEO in 2001. Newmont is a major gold producer with total assets of $25 billion on five continents. He is a Director for BHP Billiton and is a Trustee of the Denver Art Museum, The Papal Foundation, St. John Vianney Theological Seminary and a member of the College of Engineering Advisory Council at the University of Notre Dame. He was a founding board member of the Partnering Against Corruption Initiative of the World Economic Forum, a past Chairman of the International Council on Mining and Metals, a past Director of the National Mining Association and a former member of the Manufacturing Council of the United States Department of Commerce. He has served as a Director of six NYSE-listed companies. Prior to joining Newmont, Mr. Murdy spent 15 years in senior financial positions in the oil and gas industry, first with Getty Oil Company and later as Chief Financial Officer of Apache Corporation. He began his business career in public accounting.