Duane Radtke

Mr. Duane C. Radtke is a President & Chief Executive Officer at Valiant Exploration LLC. He is on the Board of Directors at Devon Energy Corp., KrisEnergy Holdings Ltd., Bazean Corp. and Palmer Drug Abuse Program. Mr. Radtke was previously employed as a Lead Independent Director by Forest Oil Corp., a Lead Director by Sabine Oil & Gas Corp., an Independent Non-Executive Director by KrisEnergy Ltd., a Non-Executive Chairman by Sabine Oil & Gas LLC, an Executive Vice President by Consolidated Natural Gas Co., an Executive Vice President by Dominion Resources, Inc., a President & Chief Executive Officer by Dominion Exploration & Production, Inc., a President-Southeast Asia Division by Santa Fe Energy Resources, Inc., an Engineer by Texas Pacific Oil Co., a Chairman by American Exploration & Production Council, a President by Devon International Group, Inc., and a Chairman by Spindletop Charities, Inc. He also served on the board at Smith International, Inc. and Offshore Energy Center. He received his undergraduate degree from the University of Wisconsin.