Gysle R. Shellum

American International Petroleum is a holding company that operates two major business divisions, a Refining Division and an Oil & Gas Exploration and Production through its wholly owned subsidiaries. It refines crude oil feedstocks to produce jet fuel, diesel, naphtha, gas oils and fuel oil. The firm also produces, processes and markets conventional and technologically advanced polymerized asphalt, vacuum gas oil and other products at its refinery in Lake Charles, Louisiana utilizing low-cost, low-gravity and high sulfur crudes. It engages in oil and gas exploration and development in western Kazakhstan and the company also seeks other domestic and international oil and gas projects. The company's wholly owned subsidiaries include American International Refinery, Inc., Gulf Coast Petroleum Trading, Inc., St. Marks Refinery, American International Marine, Inc. and American International Petroleum Kazakhstan.

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.

EnLink Midstream Partners LP provides integrated midstream services across natural gas, crude oil, condensate, and NGL commodities. It operates through the following segments: Permian, Louisiana, Oklahoma, North Texas, and Corporate. The Permian segment covers the natural gas gathering, processing, and transmission activities and crude oil operations in the Midland and Delaware Basins in West Texas and Eastern New Mexico and crude operations in South Texas. The Louisiana segment consists of natural gas pipelines, natural gas processing plants, storage facilities, fractionation facilities, and NGL assets located in Louisiana and crude oil operations in ORV. The Oklahoma segment refers to the natural gas gathering, processing, and transmission activities, and crude oil operations in the Cana-Woodford, Arkoma-Woodford, northern Oklahoma Woodford, STACK, and CNOW shale areas. The North Texas segment comprises of natural gas gathering, processing, and transmission activities in North Texas. The Corporate segment are unconsolidated affiliate investments in the Cedar Cove JV in Oklahoma, ownership interest in GCF in South Texas, derivative activity, and general corporate assets and expenses. The company was founded on July 12, 2002 and is headquartered in Dallas, TX.

PDC 2002-B LP produces and sells crude oil, natural gas and natural gas liquids. It owns an undivided working interest in wells located in Colorado. The firm is managed by its managing general partner PDC Energy, Inc. The company was founded in 2002 and is headquartered in Denver, CO.

PDC 2002-C LP engages in the exploration and development of crude oil and natural gas properties. It owns an undivided working interest in wells located in Colorado. The company was founded in 2002 and is headquartered in Denver, CO.

Part of Chevron Corp., PDC 2004-A LP is a company that provides oil and natural gas drilling services. The company is based in Denver, CO. PDC 2004-A was acquired by PDC Energy, Inc. on December 09, 2010.

Part of Chevron Corp., PDC 2004-B LP provides oil and natural gas drilling services. The company is based in Denver, CO. The company was founded in 2004. Richard Wayne McCullough has been the CEO of the company since 2007.

Part of Chevron Corp., PDC 2004-C LP is a company that provides oil and natural gas drilling services. The company is based in Denver, CO.

Part of Chevron Corp., PDC 2004-D LP is a company that provides oil and natural gas drilling services. The company is based in Denver, CO.