Alon USA Energy, Inc., together with its subsidiaries, engages in the refining and marketing of petroleum products primarily in the south central, southwestern, and western regions of the United States. The company operates in three segments: Refining and Unbranded Marketing, Asphalt, and Retail and Branded.. Read More

Arabian American Development Company, through its subsidiaries, engages in the manufacture and sale of various specialty petrochemical products, as well as the development of mineral properties in Saudi Arabia and the United States. It produces high purity petrochemical solvents and other petroleum based.. Read More

BP Prudhoe Bay Royalty Trust operates as a grantor trust in the United States. The company holds overriding royalty interests constituting a non-operational interest in minerals in the Prudhoe Bay oil field located on the North Slope in Alaska. The Prudhoe Bay field extends approximately 12 miles by 27 miles.. Read More

Calumet Specialty Products Partners, L.P. produces and sells specialty hydrocarbon products in North America. The company operates in two segments, Specialty Products and Fuel Products. The Specialty Products segment processes crude oil and other feedstocks into various customized lubricating oils, solvents, and.. Read More

China Yili Petroleum Company, together with its subsidiaries, engages in refining petroleum to produce asphalt, diesel fuel, and lubricants. Its petroleum asphalt is burnt to produce coke, which is the main fuel source for steelmaking; blended with anthracite and liquid asphalt, then used as blast furnace.. Read More

Crosstex Energy, Inc., through its partnership interest in Crosstex Energy, L.P., engages in gathering, transmission, treating, processing, and marketing natural gas and natural gas liquids (NGLs) in the United States. The company connects the wells of natural gas producers in its market areas to its gathering.. Read More

CVR Energy, Inc., together with its subsidiaries, refines and markets transportation fuels in the United States. The company also produces and markets nitrogen fertilizer products. It operates through two segments, Petroleum and Nitrogen Fertilizer. The Petroleum segment owns and operates a coking medium-sour oil.. Read More

Delek US Holdings, Inc., through its subsidiaries, engages in the refining and marketing of petroleum products in the United States. The company operates in three segments: Refining, Marketing, and Retail. The Refining segment operates an independent refinery in Tyler, Texas. This segment produces gasoline,.. Read More

Eagle Rock Energy Partners, L.P., together with its subsidiaries, engages in gathering, compressing, treating, processing, transporting, and selling natural gas, as well as in fractionating and transporting natural gas liquids (NGL). It also involves in acquiring, developing, and producing oil and natural gas.. Read More

EMTA Holdings, Inc., through its subsidiaries, engages in the research, development, manufacture, and distribution of gasoline, oil, and diesel additives for engines and other transportation-related fluids and industrial lubricants. Its products include XenTx Extreme Engine Treatment, a synthetic metal.. Read More

Enterprise GP Holdings L.P. engages in the midstream energy industry and related businesses. Its Enterprise Products Partners segment develops pipeline and other midstream energy infrastructure for the producers and consumers of natural gas, natural gas liquids (NGLs), crude oil, and certain petrochemicals in the continental United States and Gulf of Mexico. It involves in natural gas processing and related NGL marketing activities; and operates NGL pipelines and related product storage facilities, import and export terminals, onshore natural gas pipeline systems, underground natural gas storage caverns, and multi-purpose offshore hub platforms. It also operates two propylene fractionation facilities, an isomerization complex, an octane additive production facility, offshore natural gas pipelines, natural gas marketing activities, offshore crude oil pipeline systems, and petrochemical pipeline systems. The companys TEPPCO segment owns and operates refined products, liquefied petroleum gas, petrochemical, and NGL pipelines; natural gas gathering systems; and a marine transportation system. It also engages in the transportation, storage, gathering, terminalling, and marketing of crude oil; and the distribution of lubrication oils and special chemicals, as well as offers marine services, including transporting refined products, crude oil, condensate, and NGLs through tow boats and tank barges on the United States inland waterway system; and provides offshore support services for well-testing and pipelines in the Gulf of Mexico. Enterprise GPs Energy Transfer Equity segment owns and operates natural gas gathering pipelines, processing plants, treating facilities, and conditioning facilities; and engages in the intrastate transportation and storage of natural gas, as well as retails propane. EPE Holdings, LLC serves as the general partner of the company. Enterprise GP Holdings was founded in 2005 and is based in Houston, Texas.

Frontier Oil Corporation, together with its subsidiaries, engages in refining crude oil and marketing refined petroleum products. It purchases crude oil to be refined and markets the refined petroleum products, including various grades of gasoline, diesel, jet fuel, asphalt, chemicals, and petroleum coke. The.. Read More

Geotec Thermal Generators, Inc. provides services to energy industry. It has license to market and sell oil treatment service to customers in North, central, and South America. The technology known as Gas Generators is designed to produce a thermo-chemical treatment of oil and gas wells for restoring and.. Read More

Hess Corporation, together with its subsidiaries, engages in the exploration, development, production, purchase, transportation, and sale of crude oil and natural gas worldwide. It operates in two segments, Exploration and Production (E&P) and Marketing and Refining (M&R). The E&P segment explores for, develops,.. Read More

Holly Corporation and its subsidiaries operate as a petroleum refiner in the United States. It produces gasoline, diesel fuel, and jet fuel. As of December 31, 2008, the company owned and operated 2 refineries consisting of a petroleum refinery in Artesia, New Mexico and a refinery in Woods Cross, Utah; and owned.. Read More

Imperial Oil Limited engages in the exploration, production, and sale of crude oil and natural gas in Canada. The company operates through three segments: Upstream, Downstream, and Chemical. The Upstream segment engages in the exploration and production of conventional crude oil, natural gas, upgraded crude oil,.. Read More

InterOil Corporation, together with its subsidiaries, engages in the exploration and production of oil and gas properties in Papua New Guinea. The company owns four petroleum prospecting licenses covering approximately 8.7 million net acres, as well as two petroleum retention licenses located in Papua New Guinea... Read More

Marathon Oil Corporation, through its subsidiaries, engages in the exploration, refining, marketing, and transportation of liquid hydrocarbons, natural gas, and other petroleum products worldwide. It operates in four segments: Exploration and Production; Oil Sands Mining; Refining, Marketing, and Transportation;.. Read More

Murphy Oil Corporation operates as an oil and gas exploration and production company in the United States, Canada, the United Kingdom, Malaysia, Ecuador, and internationally. It operates in two segments, Exploration and Production, and Refining and Marketing. The Exploration and Production segment explores for.. Read More

NewGen Technologies, Inc., a fuel production and distribution company, manufactures and distributes renewable biofuels and hydrocarbon blends in the United States. Its products include proprietary and complex technology that improves the performance of gasoline and diesel fuels, as well as alternative fuels, such.. Read More

Nexgen Biofuels, Ltd. is engaged in the pursuit of alternative and renewable fuel sources and to produce such fuel through the acquisition of existing production facilities and/or through the building of new production facilities.

Petro-Canada, an integrated oil and gas company, explores for, develops, produces, and markets crude oil, natural gas liquids, and natural gas in Canada and internationally. The company also refines, markets, and distributes petroleum products, and related goods and services, including gasoline, diesel oils, heating oils, aviation fuels, heavy fuel oils, asphalts, petrochemicals, and feedstock for lubricants principally in Canada. It has natural gas property interests in western Canada, the U.S. Rockies, Alaska, North West Territories, and the Arctic Islands. Petro-Canada also owns interests in the Syncrude oil sands mining operation, the MacKay River in situ oil sands operation, and the Fort Hills oil sands mining and upgrading project. In addition, the company has operations offshore Newfoundland and Labrador, and holds interests in the Hibernia, Terra Nova, Hebron, and White Rose oilfields. It also conducts operations in the United Kingdom, the Netherlands, Trinidad and Tobago, Libya, Syria, and Norway. Petro-Canada operates a distribution network, using pipeline, road, rail, and marine transportation to deliver refined products to retail outlets, and commercial and industrial customers. In addition, the company operates convenience stores, as well as provides car washes, and automotive repair and maintenance services. It serves farm, home heating, paving, small industrial, commercial, and truck markets. As of December 31, 2008, Petro-Canadas network of retail sites consisted of 1,323 outlets in Canada, of which 808 were company controlled. The company was founded in 1969 and is headquartered in Calgary, Canada.

Petroleum Development Corporation engages in the exploration, development, production, and marketing of oil and natural gas. The company also specializes in the purchase, aggregation, and resale of natural gas from other producers. As of December 31, 2008, it owned interests in approximately 4,712 gross wells.. Read More

Royal Dutch Shell plc engages in the exploration and production of oil and gas on land and at sea. It transports and trades oil and gas, markets natural gas, produces and sells fuel for ships and planes, generates electricity, and provides advice on energy utilization. Further, the company produces and sells.. Read More

Sasol Limited operates as an integrated energy and chemical company. The company operates coal mines; distributes and markets natural gas; produces synthesis gas through coal gasification and natural gas reforming, using its proprietary technology to convert synthesis gas into synthetic fuel components, chemical.. Read More

SulphCo, Inc., a developmental stage company, engages in the development and marketing of processes for the upgrading of crude oil. The companys Sonocracking technology is based upon the combination of proprietary catalysts, oxidants, and the novel use of high power ultrasound that includes the application of high energy and high frequency sound waves to alter the molecular structure of crude oil and crude oil fractions. This technology is designed to upgrade the quality of crude oil and crude oil products by modifying and reducing the sulfur and nitrogen content. It targets refining, transportation, and crude oil production markets. SulphCo, Inc. was founded in 1986 and is headquartered in Houston, Texas.

Sunoco, Inc., through its subsidiaries, manufactures and markets various petroleum products, including fuels, lubricants, and petrochemicals in the United States. It also manufactures, distributes, and markets commodity and intermediate petrochemicals; and has interests in logistics and cokemaking businesses. The.. Read More

Syntroleum Corporation engages in the research, development, and commercialization of the Syntroleum Process that is designed to convert natural gas into synthetic liquid hydrocarbons. It owns the Syntroleum Process for Fischer-Tropsch (FT) conversion of synthesis gas derived from biomass, coal, natural gas, and.. Read More

Tesoro Corporation engages in refining and marketing petroleum products. It operates in two segments, Refining and Retail. The Refining segment processes both heavy and light crude oils and produces primarily gasoline and gasoline blendstocks, jet fuel, diesel fuel, and heavy fuel oils. It also manufactures other.. Read More

United Fuel & Energy Corporation, through its subsidiaries, distributes and sells fuel and lubricant products to industrial, commercial, and residential customers in the southwestern and south central United States. It transports various fuels, including gasoline, diesel, kerosene, and aviation gasoline for.. Read More

Valero Energy Corporation operates as a crude oil refining and marketing company. The company operates through two segments, Refining and Retail. The Refining segment engages in the refining operations, wholesale marketing, product supply and distribution, and transportation operations. This segment produces.. Read More

Western Refining, Inc., through its subsidiaries, operates as an independent crude oil refiner and marketer of refined products in Texas, Arizona, New Mexico, Utah, Colorado, and the Mid-Atlantic region. The company operates in three groups: Refining group, Retail group, and Wholesale group. The Refining group.. Read More

YPF Sociedad Anonima engages in the exploration, development, and production of crude oil, natural gas, and liquefied petroleum gas. It also involves in the refining, marketing, transportation, and distribution of oil, and a range of petroleum products, petroleum derivatives, petrochemicals, liquid petroleum gas, and bio-fuels. As of December 31, 2007, the companys crude oil transportation network included approximately 2,700 kilometers of crude oil pipelines with approximately 640,000 barrels of aggregate daily transportation capacity of refined products; crude oil tankage of approximately 7 million barrels; and terminal facilities at 5 Argentinean ports. In addition, it engages in electricity generation operations. Further, it sells petrochemical products in domestic and international markets. As of December 31, 2007, the company had approximately 623 million barrels of oil and 3,708 billion cubic feet of gas, representing aggregate reserves of 1,283 million barrels of oil equivalent. The company was founded in 1977 and is based in Buenos Aires, Argentina. YPF Sociedad Anonima is a subsidiary of Repsol YPF, S.A.