W. Mark Schweitzer

Petrowest Energy Services Trust provides pre-drilling and post-completion energy services in Canada. Its divisions include: Road and lease construction, Transport and hauling, Civil service and Heavy equipment rental division. The road and lease construction operates heavy equipment, which include dozers, tracked excavators, articulated rock haulers, compactors, graders, and scrapers. The transport and hauling provides equipment and hauling for oil and gas drilling. Its trucking services include loading and hauling of logs and gravel. It operates heavy transport trucks, jeeps, boosters and log and gravel loading equipment. The civil services division operates portable cone and jaw crusher units and associated support equipment. The heavy equipment rental division provides equipments to oil and gas, oil sands, mining, logging, pulp and paper and civil construction industries. Its business segments include: Construction, Transportation, Civil and Rentals. It operates in Calgary, Fort McMurray and Grande Prairie. The company was founded on July 6, 2006 and is headquartered in Grande Prairie, Canada.

CE Franklin Ltd. manufactured and sold oil drilling equipment. The company was founded in 1993 and was headquartered in Calgary, Canada.

Superior Plus Income Fund is a closed-end investment fund/investment trust. The fund was founded on August 2, 1996 and is headquartered in Calgary, Canada

Grizzly Oil Sands ULC is a Canadian company that owns oil sands leases and extracts crude petroleum. The private company is based in Calgary, Canada.

The Winroc Corp. distributes building and construction materials to the wall and ceiling industry. It offers ceiling products, metal building components, exterior stucco systems and finishes, wall materials and systems, tools, equipment, and fasteners. The company was founded in 1971 and is headquartered in Calgary, Canada.

Superior Plus, Inc. distributes propane and gypsum wallboard products. It offers its products to pulp, paper and water treatment industries. The company also provides natural gas marketing supply services to commercial and industrial markets. Superior Plus is located in Calgary, Canada