Scott J. Reasoner

Patina Oil & Gas Corp. engages in the acquisition, development, exploitation and production of oil and natural gas properties within the continental United States. The company was incorporated in June 20, 2001 and is headquartered in Denver, CO.

PDC Energy, Inc. engages in the exploration and production of oil and natural gas. The firm acquires, explores, and develops properties for the production of crude oil, natural gas, and natural gas liquids. Its primary operations are located in the Wattenberg Field in Colorado and the Delaware Basin in Texas. The company was founded in 1969 and is headquartered in Denver, CO.

Noble Energy, Inc. operated as an exploration and production company. It engaged in the acquisition, exploration and development of crude oil and natural gas. The firm operated through the following geographical segments: United States, Eastern Mediterranean, West Africa, Other International and Midstream. The United States segment was consists of U.S. onshore and Gulf of Mexico. The Eastern Mediterranean segment was included Israel and Cyprus. The West Africa segment comprised of Equatorial Guinea, Cameroon, and Gabon. The Other International segment was composed of Newfoundland, Suriname, and other new ventures. The Midstream segment was owns, operates, develops, and acquires domestic midstream infrastructure assets with focus areas being the DJ and Delaware Basins. The company was founded by Lloyd Noble in 1932 and it was headquartered in Houston, TX.