E. Wayne Sampson

Gravis Oil Corp. explores and mines oil and gas. It is engaged in the acquisition, exploration and development of a number of unproven heavy oil properties in the United States. Its activities to date have included analysis and evaluation of technical data, preparation of geological models, acquisition of mineral rights, exploration and development drilling, conceptual engineering, construction and operation of thermal demonstration projects, and securing capital to fund related expenditures. The company was founded on February 8, 2000 and is headquartered in Houston, TX.

American Association of Professional Landmen consists of landmen and land-related persons throughout affiliated local associations in the United States and in Canada. It promotes standards of performance for all land professionals, which encourage responsible stewardship of energy and mineral resources. The company was founded on March 17, 1987 and is headquartered in Fort Worth, TX.

Part of Freehold Royalties Ltd., Petrovera Resources Ltd. explores for and develops heavy oil resources. The company is based in Calgary, Canada. Petrovera Resources was acquired by Freehold Royalty Trust from Canadian Natural Resources Ltd. on May 10, 2005 for $277.68 million.

Harvest Energy Trust is to acquire and produce crude oil, natural gas and natural gas liquids. The company operates under two businesses: Downstream operations and Upstream operations. The Downstream operations runs the refining and marketing business that operates a medium gravity sour crude hydro cracking refinery and a retail and wholesale petroleum marketing business. The Upstream operations runs the petroleum and natural gas business that is focused on the operations and further development of assets in western Canada. It acquires and holds net profit interests in oil and natural gas properties in Alberta and West Castle.