ROC is one of Australia’s leading independent upstream oil and gas companies. Incorporated in Australia, ROC listed on the Australian Stock Exchange (ASX) in 1999. ROC currently has approximately 713 million shares on issue. ROC is an upstream oil and gas company with exploration and production interests in Australia, Africa, China, and the UK. Some of its assets include the Cliff Head Oil Field, located offshore in the Perth Basin in Western Australia, as well as the onshore Basker-Manta-Gummy (BMG) Oil and Gas Fields, also located in Australia. Together, the company's total assets cover 57,000 square kilometers and produced more than 4 million barrels of oil equivalent in 2008. ROC was formed 1997 as a private company, but Roc Oil Company Limited became a publicly-traded company two years later.

Advantage Oil & Gas Ltd. was founded in 2001 and is headquartered in Calgary, Canada. Advantage Oil and Gas Ltd. is an intermediate oil and natural gas corporation with properties located in Western Canada. The Corporation's common shares trade on the Toronto and New York Stock Exchanges under the symbol AAV with its head office in Calgary, Alberta, Canada. In 2008 the company reported about 547,912 net acres of undeveloped land, and proved and probable reserves of 174.8 billion cu. ft. of natural gas equivalent. It focuses on developing the Montney natural gas resource play located at Glacier, Alberta. The company was formerly known as Advantage Energy Income Fund and changed its name to Advantage Oil & Gas Ltd.

Signa Engineering Corp. is a leading edge petroleum engineering and operations management company. Signa's primary focus is the evaluation, design and execution of drilling and completion operations, onshore and offshore, both domestic and international, for projects involving vertical, directional, horizontal or underbalanced operations. Signa has the engineering expertise and the drilling consultants required. Signa Engineering Corp. services include underbalanced operation engineering, oil and gas property management, field supervision, reservoir and geological engineering, and litigation support. Signa Engineering also develops custom software used for engineering analysis, hydraulics simulation, and multimedia presentations. Signa Engineering Corp. was founded in 1992 by chairman and CEO Rick Stone. Its customers include Burlington Resources, Chevron, and Weatherford International.

Glen Rose Petroleum Corporation was founded in 1981 and is headquartered in Dallas, Texas. Glen Rose Petroleum Corporation, through its subsidiary, UHC Petroleum Corporation, operates as an independent producer of natural gas and crude oil. Glen Rose Petroleum Corporation operates the Wardlaw Field located in Edwards County, Texas. As of March 31, 2009, Glen Rose Petroleum Corporation had 103 wellbores, of which 90 are capable of production and 44 are producing wellbores. Glen Rose Petroleum Corporation was formerly known as United Heritage Corporation and changed its name to Glen Rose Petroleum Corporation in May 2008.

Encore Acquisition Company was founded in 1998 and is based in Fort Worth, Texas.Encore Acquisition Company engages in the acquisition and development of oil and natural gas reserves from onshore fields in the United States. Encore Acquisition Company holds interests in various properties located in the Cedar Creek Anticline (CCA) in the Williston Basin of Montana and North Dakota; the Permian Basin of west Texas and southeastern New Mexico; the Rockies, which includes non-CCA assets in the Williston, Big Horn, and Powder River Basins of Wyoming, Montana, and North Dakota; the Paradox Basin of southeastern Utah; and the Mid-Continent area, including the Arkoma and Anadarko Basins of Oklahoma, the north Louisiana Salt Basin, the east Texas Basin, and the Mississippi Salt Basin. As of December, 31, 2008, Encore Acquisition Company had estimated total proved reserves of 134.5 MMBbls of oil and 307.5 Bcf of natural gas. Encore Acquisition Company sells its products to marketers, processors, refiners, and other purchasers.

Penn West Energy Trust was founded in 1979 and is headquartered in Calgary, Canada. Penn West Energy Trust (formerly Penn West Petroleum) has been pumping gas and oil from Western Canada in hopes of keeping black ink flowing from its auditor's pen. The independent exploration and production company has holdings of 3.2 million net acres of undeveloped land in Alberta, Saskatchewan, and British Columbia. In 2007 Penn West Energy Trust reported net proved and probable reserves of 644.2 million barrels of oil equivalent. Shareholders converted Penn West Energy Trust into a trust in 2005, making it one of Canada's largest oil and gas income trusts. It combined general partners Penn West, Northern Reef, Trocana, and Penn West Exploration.

Every day across North America, more than five million residential and business customers turn to Direct Energy for their electricity and natural gas, home energy services, energy efficient solutions and more. We are the largest competitive retailer of energy and related services in North America. At Direct Energy, we source, generate, trade, service and supply energy to meet your current and future energy needs.

Tri-Valley Corporation was founded in 1971 and is headquartered in Bakersfield, California. Tri-Valley Corporation, through its subsidiaries, engages in the exploration, acquisition, and development of petroleum, metal, and mineral properties. Tri-Valley Corporation principal oil and gas properties include the Ekho property and Sunrise-Mayel Natural Gas project located in California. Tri-Valley Corporation operates precious metals properties in Alaska comprising the Richardson claim block consisting of 28,720 gross acres located in the north of Richardson Highway; and the Shorty Creek project in the Livengood District of Alaska. Tri-Valley Corporation also holds industrial minerals project, which consists of the Admiral calcium carbonate mine located on the north-west side of Prince of Wales Island. In addition, Tri-Valley Corporation involves in oil and gas drilling and development operations.

Woodfin Oil provides residential heating oils and kerosene to customers in Richmond, Virginia. Woodfin Oil Company also operates fleet fueling stations and convenience stores, and provides air-conditioning, plumbing, and electrical services. Woodfin Oil manages a heating oil and kerosene supply fleet. Woodfin Oil Company operates 14 Pit Stop Convenience Stores at locations across Virginia. The Woodfin Plumbing unit installs A. O. Smith electric water heaters and In-Sink-Erator food waste disposal equipment. This company also installs fireplace logs for natural gas fireplaces.

Copano was founded in 1992 by John R. Eckel, Jr., who served as its Chairman of the Board and Chief Executive Officer until his death in November 2009. Under his leadership, Copano grew from a single 23-mile pipeline to a successful midstream natural gas company with over 6,000 miles of pipe and seven processing plants. John maintained that Copano’s greatest asset was its people, and his commitment to Copano’s employees and producers was a constant that helped shape our company’s culture. We are a midstream natural gas company providing comprehensive services to natural gas producers, including natural gas gathering, intrastate transmission, processing, conditioning and treating. Our operations are located in Oklahoma, Texas, Wyoming and Louisiana. We provide midstream services to producers of about 1,700,000 MMBtu per day of natural gas.

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