Murray Robert Nunns

Corex Resources Ltd. engages in the development of oil and natural gas resources. Its areas of operations include Manitoba, Crystal and Cecil. The company was founded in April 2007 and is headquartered in Calgary, Canada.

Penn West Energy Trust is the largest conventional oil and natural gas producing income trust. It is the owner of the largest conventional oil and natural gas reserves in Canada and operates throughout the Western Canadian sedimentary basin with a focus on resource-play potential in the peace river oil sands of Northern Alberta, CO2 enhanced oil recovery in the Pembina, Swan Hills, Midale and Weyburn light oil pools, and coalbed methane producing assets. The trust has considerable interests in large light/medium oil pools, an extensive in situ oil sands project under early stages of development, and a large inventory of enhanced oil recovery opportunities. The Trust conducts a substantial capital program funded by retaining a proportion of cash flow.

Monterey Exploration Ltd. explores for oil and natural gas. The company is headquartered in Calgary, Canada.

The Company's principal activity is to explore, develop and produce oil and gas in Canada. The Company's oil and gas operations are carried out in the Western Canadian provinces of Alberta and British Columbia.

Capitol Energy Resources Ltd. engages in the business of exploring oil and gas activities. The company was founded in July 2000 and is headquartered in Calgary, Canada.

Crispin Energy, Inc. is engaged in the exploration, development and production of petroleum and natural gas in Western Canada. The company is headquartered in Calgary, Canada.

Part of Canadian Natural Resources Ltd., Rio Alto Exploration Ltd. explores for, produces, and develops oil and gas properties. The company is based in Calgary, Canada. Rio Alto Exploration was acquired by Canadian Natural Resources Ltd. on July 01, 2002 for $877.36 million.