Pioneer Drilling Company was founded in 1968 and is based in San Antonio, Texas. Pioneer Drilling Company, formerly South Texas Drilling & Exploration, provides contract drilling services to oil and gas companies in Texas, and to a lesser degree in Oklahoma, the Rockies, and Colombia. Pioneer Drilling operates 70 land drilling rigs that can reach depths of 8,000-18,000 feet. In addition, Pioneer Drilling Company Pioneer Production Services Division provides workover rig services, wireline services, and fishing and rental services to US-based oil and gas producers. Pioneer Drilling Company focus is to operate in prolific oil and natural gas production regions in the United States and Latin America, positioning ourselves for maximum return to our shareholders.

Pioneering the squeezing of oil and gas profits from mature properties in the Rockies that other oil companies have sold as marginal producers is the work of Pioneer Oil and Gas. Pioneer Oil and Gas acquires oil and gas properties from oil explorers, sells producing wells, and acquires new oil and gas leases on properties located in Colorado, Nevada, Utah, and Wyoming. Pioneer Oil and Gas has estimated proved reserves of 1 billion cu. ft. of natural gas and about 30,000 barrels of oil. The oil and gas exploration and production independent was established in 1980. Brothers and top executives Gregg and Don Colton control Pioneer Oil and Gas.

Pioneer Southwest Energy Partners L.P. (NYSE: PSE) is a Delaware limited partnership formed by Pioneer Natural Resources Company (NYSE: PXD) to own and acquire oil and gas assets in Pioneer Southwest's area of operations, which consists of onshore Texas and eight counties in the southeast region of New Mexico. Pioneer Southwest's assets currently consist of non-operated working interests in approximately 1,100 identified producing wells in the Spraberry field in the Permian Basin of West Texas, with approximately 23 MMBOE of proved reserves as of December 31, 2008. Pioneer Southwest owns a 78% average working interest in these wells, and Pioneer Natural Resources is the operator. According to the Energy Information Administration, the Spraberry field is the fifth largest oil field in the United States and the only large onshore oil field that is growing. Recently published production information identifies Pioneer Natural Resources as the largest operator in the field, and Pioneer Southwest expects to benefit from that experience and scale of operations.

Premier is focussed on three core Businesses; the North Sea & West Africa, Middle East & Pakistan, and Asia. Premier Oil plc is independent, has a strong balance sheet, and is seeking to grow through organic production growth, high impact exploration, and acquisitions in the areas we know well. Premier Oil plc, which holds interests primarily in Asia, West Africa, and the UK, has explored for and produced oil and natural gas in the political hotspots of the Congo, Indonesia, Myanmar, and Pakistan. Despite Premier's affinity for troubled areas, Premier Oil plc also makes sure it has production bases in the calmer political environments of the UK and Norway. With proved and probable reserves of 165 million barrels of oil equivalent, Premier is focused on developing long-term natural gas supplies and existing oil reserves.

Pride International, Inc. was founded in 1966 and is based in Houston, Texas. Pride International, Inc. provides offshore contract drilling services to oil and natural gas exploration and production companies. Pride International, Inc. offers services through the use of mobile offshore drilling rigs in the United States and international waters. As of February 19, 2010, the company operated a fleet of 23 rigs consisting of 2 deepwater drillships, 12 semisubmersible rigs, 7 jackups, and 2 managed deepwater drilling rigs. Pride International, Inc. also offers rig management services on various rigs, including technical drilling assistance, personnel, repair and maintenance, and drilling operation management services. Pride International, Inc. have positioned our fleet in some of the world's largest and most active exploration and production areas, with a market presence in West Africa (Angola), Latin America (Brazil), the Gulf of Mexico, the Middle East and India.

Progress Energy Resources Corp., or "Progress", was formed in January 2009 through the business combination of Progress Energy Trust and ProEx Energy Ltd. Progress's strategy focuses on growing reserves, production and cash flow while paying a dividend to shareholders. Progress Energy Resources Corp. two primary operating regions are the Deep Basin of Northern Alberta and the Foothills of Northern British Columbia. These regions are considered among the most desirable resource play regions in North America. New technologies are continually being applied and refined to economically recover the large natural gas resource-in-place. Progress Energy Resources Corp. also has operations in south-central Alberta and minor land holdings in Saskatchewan. Progress Energy Resources Corp. asset base includes 1.2 million net acres of undeveloped land. In 2008 Progress Energy Resources reported proved and probable reserves of I trillion cu. ft. of natural gas equivalent.

Pulse Seismic maintains a seismic data library of about 257,300 net kilometers of 2-D data and more than 12,800 net sq. km. of 3-D data covering primarily Western Canadian Sedimentary Basin plays. The information is sold to oil and gas companies to assist them in seeking commercially viable drilling locations. Pulse Data changed its name to Pulse Seismic in 2009 in order to promote its primary focus as a pure-play seismic data provider. Pulse Seismic Inc. proven business model includes continually augmenting its data library through acquisitions and participation surveys Pulse's business model is based on the enduring value of seismic data, which can be repeatedly re-used by the oil and natural gas industry. Continuous library expansion enables Pulse to generate increased revenues and improve operating efficiencies, supporting high cash operating margins and driving growth in cash EBITDA. Pulse's data library has an estimated replacement value of over $1 billion based on current field replacement cost.

Pyramid Oil has been in business for more than a century, focusing on the exploration, development, and production of crude oil and natural gas. Pyramid Oil Company major operations and all of its income-producing assets are located in Kern and Santa Barbara counties in Southern California, where Pyramid Oil Company owns and operates about 30 oil and gas leases. Pyramid Oil also holds minority stakes in some oil and gas leases in New York, Texas, and Wyoming. In 2008 Pyramid Oil reported proved reserves of more than 470,000 barrels of oil and 330 million cu. ft. of natural gas. Company chairman Michael Herman owns about 36% of Pyramid Oil. Crude oil and natural gas produced from Pyramid’s properties are sold to various refineries and pipeline companies. The majority of all oil and gas properties that Pyramid owns and operates is for its own account. Pyramid also participates in joint ventures with other companies in the development of oil and gas properties.

Qatar Petroleum (QP) is the government-owned oil and gas conglomerate of the small Mideast country. Qatar Petroleum has upstream (exploration, drilling, production) and downstream (refining) operations for crude oil, natural gas, liquefied natural gas (LNG), and other refined products. Its Dukhan oil field can produce up to 335,000 barrels per day. QP has onshore crude oil reserves of 1,842 million barrels and onshore gas reserves of some 8 trillion cubic feet. Its two offshore production stations produced almost 90 million barrels of oil in 2008. Through partnerships with such companies as ExxonMobil, Occidental, and TOTAL, QP supplies oil and gas to North America, Asia and Europe.

Quest Energy Partners, L.P. engages in the acquisition, exploitation, and development of oil and natural gas properties in the Cherokee basin of southeastern Kansas and northeastern Oklahoma (the Cherokee Basin Operations), and the Appalachian Basin in West Virginia and New York. Quest Energy Partners, L.P. Appalachian Basin operations primarily focus on the development of the Marcellus Shale; and Cherokee Basin Operations focus on developing coal bed methane gas production. As of December 31, 2008, Quest Energy Partners, L.P. had a total of approximately 167.1 billion cubic feet equivalent of net proved reserves. Quest Energy Partners, L.P. also operated approximately 2,438 gross gas wells in the Cherokee Basin and 27 gross oil wells. In addition, Quest Energy Partners, L.P. had approximately 4,000 oil and gas leases covering approximately 559,084 net acres; and owned the development rights to approximately 557,603 net acres throughout the Cherokee Basin. Quest Energy GP, LLC serves as the general partner of Quest Energy Partners, L.P. Quest Energy Partners, L.P. is based in Oklahoma City, Oklahoma. Quest Energy Partners, L.P. is a subsidiary of Quest Resource Corporation.

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