Ralph M. Claussner

High Plains Gas, Inc. produces and markets natural gas in the powder river basin. High Plains Gas operates through two segments: Natural Gas and Energy Construction Services, Repair and Maintenance Services. The Natural Gas segment consists of all activities related to the exploration and production of natural gas, natural gas liquids and crude oil. The Energy Construction Services, Repair and Maintenance Services segment consists of all activities related to the construction of equipment and providing of services to the energy industry. The company was founded by Joseph Hettinger and Mark D. Hettinger on November 17, 2004 and is headquartered in Gillette, WY.

Sonora Gold & Silver Corp. is an exploration stage company, which engages in the exploration and development of precious and base metal projects. It holds interest in the Handeni concession located in Tanzania. The company was founded on November 23, 1983 and is headquartered in Vancouver, Canada.

Association of Professional Engineers & Geoscientists of AB is a non profit organization that regulates the practices of engineering and geoscience in Alberta. Its function is licensing individuals and companies that want to practice engineering and geoscience in Alberta. The applicants and companies that meet APEGA’s standards for ethical, professional, and technical competency earn the right to practice and use reserved titles and designations. The company was founded in 1920 and is headquartered in Edmonton, Canada.

Society of Petroleum Engineers, Inc. provides petroleum engineering services. The non-profit company is based in Allen, TX and has subsidiaries in United States, India and Canada.