Barry D. Stewart

NAL Oil & Gas Trust provides investors with a yield-oriented opportunity to participate in the Canadian Upstream Oil and Gas Industry. The Trust generates monthly cash distributions for its Unitholders by pursuing a strategy of acquiring, developing, producing and selling crude oil, natural gas and natural gas liquids from pools in southeastern Saskatchewan, central Alberta, northeastern British Columbia and Lake Erie, Ontario. The company was founded in 1996 and is headquartered in Calgary, Canada.

Newalta Corp. delivers industrial waste management and environmental services. Its services include waste processing, recycling and product recovery, onsite projects, collection & transportation as well as disposal and ancillary services. The company was founded in June 1993 and is headquartered in Calgary, Canada

NAL Energy Corp. explores, develops and produces natural gas liquids and crude oil. The company is headquartered in Calgary, Canada.

Newalta Corp. engaged in the provision of engineered environmental solutions that enable customers to reduce disposal, enhance recycling, and recover resources from industrial residues. The company operated through the Heavy Oil and Oilfield segments. The Heavy Oil segment processes oilfield-generated wastes, including treatment, water disposal, salt cavern disposal, landfilling, and the sale of recovered crude oil; as well as provides onsite services using centrifugation or other processes for heavy oil producers involved in heavy oil mining and in site production. The Oilfield segment included the processing of oilfield-generated wastes, including treatment, water disposal, clean oil terminalling, and landfilling; as well as the sale of recovered crude oil and the supply and operation of drill site processing equipment, including solids control and drill cuttings management. The company was founded on July 15, 1980 and was headquartered in Calgary, Canada.

Pengrowth Energy Corp. operates as a Canadian oil and natural gas exploration company. It engages in the development, acquisition, and exploration of oil and natural gas reserves in the provinces of Alberta, British Columbia, Saskatchewan, and Nova Scotia. The company was founded on October 4, 2010 and is headquartered in Calgary, Canada.

The Centre for Affordable Water & Sanitation Technology provides technical training and consulting services.

Barizco Enterprises, Inc. operates as a private consulting company. The company was founded by Barry D. Stewart and is headquartered in Calgary, Canada.