David A. Cheesman

Part of Calgary Sinoenergy Investment Corp., Diamond Tree Energy Ltd. develops, produces, and explores for oil and natural gas. The company is based in Calgary, Canada. The Canadian company was founded by Donald Darrell Copeland. Diamond Tree Energy was acquired by Crocotta Energy, Inc. on October 15, 2007.

Part of Waterous Energy Fund, Upper Lake Oil & Gas Ltd. is a Canadian company that explores for oil and gas. The company is based in Calgary, Canada. Upper Lake Oil & Gas was acquired by Monterey Exploration Ltd., part of Waterous Energy Fund from September 15, 2010 on August 29, 2008 for $25.60 million.