Glenn David Gradeen

Rosetta Exploration, Inc. operates oil and gas exploration company. It provides development and production of petroleum and natural gas services through exploration business units: Deep & Steep Exploration Business Unit, Khnum Exploration Business Unit, California Exploration Business Unit, Squid Exploration Business Unit and Orlando Exploration Business Unit and Mississippian Exploration Business Unit. Its subsidiaries: Villam Resources Co. and Alberta Ltd. providing exploration services. It is headquartered in Calgary, Canada.

Toro Oil & Gas Ltd. engaged in the exploration, acquisition, development, and production of oil and liquid natural gas reserves. The company was founded on August 21, 2001 and was headquartered in Calgary, Canada.

Cirrus Energy Corp. is engaged in petroleum and natural gas exploration, development, and production. Its holds a non-operated interest in the producing, onshore Coora oil field. The company was founded in 2002 and is headquartered in Calgary, Canada.

Alpine Oil Services Corp. manufactures underbalanced drilling surface pressure control equipment and real-time drill stem testing services. The company was founded by Rodney J. Hauser and is headquartered in January 3, 1994 and is headquartered in Calgary, Canada.

Leader Energy Services Ltd. is an energy services company, which engaged in providing oil and gas well completion and stimulation services for the oil and gas sector. The company was founded by Rodney J. Hauser in 2001 and was headquartered Calgary, Canada.

Berkana Energy Corp. engages in the exploration of oil and natural gas. The company was founded on February 22, 1993 and is headquartered in Calgary, Canada.

Vigilant Exploration, Inc. provides oil and gas exploration and production services. It acquires seismic data and applies geophysical processing, modeling, and interpretation technologies, in conjunction with geology and petro physics. The company is headquartered in Calgary, Canada.

Canadian Association of Petroleum Producers operates as the voice of Canada''s upstream oil and natural gas industry. The company was founded in 1927 and is headquartered in Calgary, Canada.