Marc Bruner

Part of Marathon Oil Corp., Pennaco Energy, Inc. acquires, develops, and produces oil and natural gas properties, primarily coal bed methane properties. The company is based in Denver, CO. Pennaco Energy was acquired by Marathon Oil Corp. on February 06, 2001 for $373.18 million. The company was founded in 1998 by Marc A. Bruner, Mark A. Erickson, Bradley J. Windt.

Nation Energy, Inc. operates as a development stage company, which engages in the establishment of Paltar Nation Limited Partnership for funding exploration expenditures. The company was founded on April 19, 1988 and is headquartered in Vancouver, Canada.

Badlands Energy, Inc. engages in the exploration of oil and gas industry. The company was founded by Mark A. Erickson on April 21, 1997 and is headquartered in Denver, CO.

Ultra Petroleum Corp. engages in the development, production, operation, exploration, and acquisition of oil and natural gas properties. It focuses on developing a tight gas sand trend located in the Green River Basin of southwest Wyoming; and assessing, exploring, and developing its position in the Marcellus Shale and other horizons located in the north-central Pennsylvania area of the Appalachian Basin of Pennsylvania. The company was founded on November 14, 1979 and is headquartered in Englewood, CO.

Part of Falcon Oil & Gas Ltd., Mako Energy Corp. explores for oil and gas. Mako Energy was acquired by Falcon Oil & Gas Ltd. on April 01, 2005 for $50.40 million.

Petrohunter Energy Corp. explores for oil and natural gas. The company was founded by Marc A. Bruner on February 21, 2002 and is headquartered in Denver, CO.