Alan G. Withey

Trident Resources Corp. provides natural gas exploration services. It focuses on the exploration for and exploitation of unconventional natural gas resources, primarily in the Western Canadian Sedimentary Basin ('WCSB'). The company was founded in 2000 and is headquartered in Calgary, Canada.

Trident Exploration Corp. produces natural gas and coal. The firm develops coal bed methane in central Alberta. It focuses on the exploration for and exploitation of unconventional natural gas resources from coal. The company was founded in September 2001 and is headquartered in Calgary, Canada.

Ironhorse Oil & Gas, Inc. operates as a oil and gas exploration company. It engages in the exploration, development, and production of petroleum and natural gas reserves. The company was founded on September 18, 1972 and is headquartered in Calgary, Canada.

Cheyenne Energy, Inc. explores for and develops oil and gas properties. It also engages in the exploration, development, and production of crude oil and natural gas in western Canada. The company was founded on October 6, 1997 and is headquartered in Calgary, Canada.

Pioneer Natural Resources Canada, Inc. explores and mines for oil and natural gas. The company is based in Calgary, Canada. The Canadian company is ultimately controlled by the Emirate of Abu Dhabi (United Arab Emirates). Pioneer Natural Resources Canada was acquired by Abu Dhabi National Energy Co. PJSC from Pioneer Natural Resources Co. on November 27, 2007 for $508.55 million.

Chauvco Resources Ltd. explores and produces oil and gas products. The company was founded on January 16, 1981 and is headquartered in Calgary, Canada.

Devon Canada Corp. explores and produces oil and natural gas. It also owns natural gas pipelines and treatment facilities. The company is headquartered in Calgary, Alberta.