Duane C. Radtke
Chairman of the Board
Mr. Radtke has served as a director since June 2008 and became Chairman of the Board in August 2009. Mr. Radtke has over 40 years of experience in energy executive management, engineering and business development. From 2001 until retiring, Mr. Radtke served as President and Chief Executive Officer of Dominion Exploration and Production, a subsidiary of Dominion Resources, Inc., and Executive Vice President of Dominion Resources, Inc. Previously, Mr. Radtke served as President of Devon International. Mr. Radtke is currently a director of Devon Energy Corporation, a public company, and a member of the boards of the Offshore Energy Center and the Palmer Drug Abuse Program and President and Chief Executive Officer of Valiant Exploration LLC, which is engaged in investments in the oil and gas industry. Mr. Radtke is a former Chairman of the American Exploration and Production Council and former Chairman of Spindletop Charities. Mr. Radtke earned a Bachelor of Science in Mining Engineering from the University of Wisconsin.