J. Dean Tucker

Orion Oil & Gas Corp. was acquired, explored, developed, and produced oil and natural gas properties. The company was headquartered in Alberta, Canada.

Caracal Energy, Inc. engaged in exploration, development, and production of oil and gas properties in the Republic of Chad, Africa. Caracal Energy was founded by Bradley D. Griffiths on April 20, 2009 and is headquartered in Calgary, Canada.

Pearl Exploration & Production Ltd. engages in the exploration for, and the acquisition, development, and production of oil and natural gas reserves located in Canada and the United States. The company was founded in 1984 and is headquartered in Calgary, AB.

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.

Schlumberger Canada Ltd. provides oilfield services. It supplies technology, project management and information solutions that optimize performance for customers working in the international oil and gas industry. The company is headquartered in Calgary, Canada.