Quest Resource Corporation, an integrated independent energy company, engages in the acquisition, exploration, development, gathering, production, and transportation of oil and natural gas in the United States. Quest Resource Corporation operates in two segments, Oil and Gas Production, and Natural Gas Pipelines. The Oil and Gas Production segment primarily focuses on the development of coal bed methane in the Cherokee basin. As of December 31, 2008, it had 152.7 billion cubic feet equivalent of estimated net proved reserves; and operated approximately 2,438 gross gas wells and approximately 27 gross oil wells in the Cherokee Basin. This segment also owned 55 gross productive oil wells and the development rights to approximately 1,481 net acres with an estimated net proved reserves of approximately 588,800 billion barrels in Seminole County, Oklahoma; and approximately 500 gross gas wells and the development rights to approximately 68,161 net acres in the Appalachian Basin. The Natural Gas Pipelines segment involves in transporting, gathering, treating, and processing natural gas. It owns and operates a natural gas gathering pipeline network of approximately 2,173 miles in the Cherokee Basin, as well as a 1,120 mile interstate natural gas pipeline, which transports natural gas from northern Oklahoma and western Kansas to the metropolitan Wichita and Kansas City markets. Quest Resource Corporation was founded in 1982 and is headquartered in Oklahoma City, Oklahoma.

Questar Corporation's origins date to the 1922 discovery of natural gas in southwestern Wyoming by a predecessor exploration and production company. Questar Market Resources conducts parent Questar's nonregulated exploration and production, gas gathering, processing, and storage, and energy trading operations. Questar Market Resources, Inc. subsidiaries acquire and develop gas and oil properties, generate and drill prospects, and develop gas reserves for affiliate utility Questar Gas. Questar Market Resources, Inc. also provide gas gathering and processing services for affiliates and other companies, market equity and third-party gas and oil, own and operate an underground gas storage reservoir, and provide risk-management services. Questar Market Resources has proved reserves of 1.9 trillion cu. ft. of natural gas equivalent.

Questerre Energy's quest is the exploration for and production of oil and gas in Canada. The company focuses on developing large-scale natural gas projects, in Alberta, British Columbia, Quebec, and Saskatchewan. Questerre Energy's key asset is in the shales of the St. Lawrence Lowlands, between Montreal and Quebec City. It also holds assets in the Beaver River field, a large natural gas field in northeastern British Columbia, and has exploration acreage in the Hector and Westlock areas of central and southern Alberta. In 2008 the company reported proved plus probable reserves of 2.9 million barrels of oil equivalent. The Company’s common shares trade on the TSX and Oslo Stock Exchange under the symbol QEC.

Quicksilver Gas Services LP engages in gathering and processing natural gas and natural gas liquids on the Barnett Shale formation of the Fort Worth Basin located in north Texas. Quicksilver Gas Services LP provides its gathering and processing services to Quicksilver Resources Inc. and natural gas producers under fee-based contracts. As of December 31, 2008, Quicksilver Gas Services LP owned the Cowtown Pipeline, which consists of a pipeline gathering system and gas compression facilities in the southern portion of the Fort Worth Basin; and the Cowtown Plant that comprises two natural gas processing units, as well as the Corvette Plant, which consists of a natural gas processing unit in Hood County, Texas. Quicksilver Gas Services GP LLC serves as the general partner of Quicksilver Gas Services LP. Quicksilver Gas Services LP was founded in 2004 and is based in Fort Worth, Texas. Quicksilver Gas Services LP operates as a subsidiary of Quicksilver Resources Inc.

RAM Energy Resources, Inc. operates primarily in the Permian Basin, the Barnett Shale, the onshore Gulf Coast region, and in the Mid-Continent. RAM Energy, which was formed in 1987 and has grown through acquisitions, has proved reserves of about 90 billion cu. ft. of natural gas and 40 million barrels of oil equivalent. In 2007, it acquired Ascent Energy for about $285 million, greatly increasing its reserves in the process. The Jefferies Group, which has owned Ascent through subsidiary Jefferies & Company, now owns a quarter stake in RAM as a result of the deal. RAM Energy Resources, Inc. oil and natural gas assets are characterized by a combination of developing and mature reserves and properties. RAM Energy Resources, Inc. have mature oil and mature natural gas reserves located primarily in Jack, Wise, Wichita and Wilbarger Counties, Texas, Pontotoc County, Oklahoma, and in several parishes in Louisiana.

Oil and gas explorer Regal Petroleum is looking for royalties and more as Regal Petroleum plc explores for and produces oil and natural gas in eastern Europe and North Africa. Regal Petroleum plc operates in Egypt, Greece, Liberia, Romania, and Ukraine, with more than 70% of its reserves in Ukraine. Local oil player Chernihivnaftogasgeolgia (CNGG) legally challenged the validity of Regal's two production licenses in Ukraine. In 2006 the court ruled in favor of Regal Petroleum. Regal Petroleum plc has proved reserves of 403.5 billion cu. ft. of natural gas. In 2007 Regal Petroleum announced an oil find in Egypt.

Rex Energy Corporation operates as an independent oil and gas company in the Illinois Basin and the Appalachian Basin. The oil and gas exploration and production company has estimated proved reserves of 11 million barrels of oil equivalent, primarily from three regions: the Illinois Basin (in Illinois and Indiana) and the Appalachian Basin (Pennsylvania and West Virginia). Rex Energy Corporation owns interests in the Lawrence Field ASP Flood project, which is an oil recovery project located in Lawrence County, Illinois; and the Marcellus Shale drilling projects located in Pennsylvania in the Appalachian Basin. As of December 31, 2008, Rex Energy Corporation operated approximately 2,314 wells. Rex Energy Corporation has a joint venture agreement with Stonehenge Energy Resources, L.P. to build a high pressure gathering system and cryogenic gas processing plant in Butler County, Pennsylvania. Rex Energy Corporation was incorporated in 2007 and is headquartered in State College, Pennsylvania.

Rio Vista Energy Partners was founded in 2003 and is based in Brownsville, Texas. Rio Vista Energy Partners has moved from the liquefied petroleum gas (LPG) industry to the more traditional one of oil and gas exploration. Rio Vista Energy Partners L.P. was formed in 2003 to hold the LPG distribution, transportation, and marketing assets owned by its former parent Penn Octane. Rio Vista Energy Partners L.P. sold those assets (primarily a terminal facility in Brownsville, Texas and related properties) to TransMontaigne) in 2006. Former consultant James Richter controls 24% of the company. Penn Octane retains control over the General Partner, which is responsible for the management of Rio Vista.

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.

Rock Energy Inc. is a junior oil and gas company currently producing more than 3,600 boe per day (60% oil) from two main core areas (Plains/Lloydminster and West Central/Deep Basin). The oil and gas exploration and production company owns heavy oil and natural gas properties in Western Canada, primarily in Alberta and Northeastern British Columbia (the Plains). During the last four years Rock has consistently generated solid performance in production/reserves growth. In 2006 Rock delivered top-quartile finding and development costs. Rock Energy Inc. has an inventory of more than 100 drilling locations (three to four years) which includes a variety of projects generating a full range of risk and reward plays (low risk development locations to high impact exploration projects). Rock has the opportunities and the financial capacity to deliver growth for its shareholders.

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