BG Group plc engages in the exploration, development, production, transmission, distribution, and supply of natural gas worldwide. The company operates in four segments: Exploration and Production, Liquefied Natural Gas, Transmission and Distribution, and Power Generation. The Exploration and Production segment.. Read More

BP p.l.c. provides fuel for transportation, energy for heat and light, retail services, and petrochemicals products. It operates in three segments: Exploration and Production, Refining and Marketing, and Other Businesses and Corporate. The Exploration and Production segment engages in the oil and natural gas.. Read More

Chevron Corporation operates as an integrated energy company worldwide. The companys Petroleum operations include the exploration, development, production, and marketing of crude oil and natural gas; refining, marketing, and transportation operations comprise refining crude oil into finished petroleum products; marketing crude oil and products derived from petroleum; and transporting crude oil, natural gas, and petroleum products by pipeline, marine vessel, motor equipment, and rail car. Its chemical operations include manufacture and marketing of commodity petrochemicals, plastics for industrial uses, and fuel and lubricant oil additives. The company also engages in the production and marketing of coal and molybdenum; development and operation of commercial power projects; and cash management and debt financing, corporate administrative, insurance, and real estate activities. The company was formerly known as ChevronTexaco Corporation and changed its name to Chevron Corporation in 2005. Chevron Corporation was founded in 1879 and is based in San Ramon, California.

ConocoPhillips operates as an integrated energy company worldwide. The company operates through six segments: Exploration and Production (E&P), Midstream, Refining and Marketing (R&M), LUKOIL Investment, Chemicals, and Emerging Businesses. E&P segment explores for, produces, and markets crude oil, natural gas,.. Read More

EnCana Corporation engages in the exploration, production, and marketing of natural gas, crude oil, and natural gas liquids. The company owns interests in various Canadian property areas, principally comprising Suffield, Brooks North, Langevin, Drumheller, Pelican Lake, and Weyburn located in Alberta and.. Read More

Eni SpA, an integrated energy company, engages in the exploration, production, transportation, transformation, and marketing of oil and natural gas in Italy and internationally. The company also involves in the production and sale of electricity; refining and marketing of petroleum products; and production and.. Read More

Exxon Mobil Corporation engages in the exploration, production, transportation, and sale of crude oil and natural gas. The company also engages in the manufacture of petroleum products, and transportation and sale of crude oil, natural gas, and petroleum products. It manufactures and markets commodity.. Read More

International Fuel Technology, Inc. develops fuel additive products that improve the combustion characteristics of petroleum-based fuels and renewable liquid fuels. Its products include DiesoLIFT range of products for bio-diesel fuel and engines; GasoLIFT range of products designed for gasoline motor fuel and.. Read More

Petrobras Energia S.A. operates in the oil industry worldwide. The company engages in the oil exploration and production activities in Argentina, Bolivia, Ecuador, Peru, and Venezuela; and operation of refineries for the production of gasoline, diesel oil, fuel oil, asphalts, and asphalt specialties. It also.. Read More

PetroChina Company Limited, together with its subsidiaries, engages in petroleum and natural gas related activities. The companys Exploration and Production segment engages in the exploration, development, production, and sale of crude oil and natural gas. Its Refining and Marketing segment involves in the refining, transportation, storage, and marketing of crude oil and petroleum products. This segments refined products include diesel oil, gasoline, fuel oil, naphtha, bitumen, kerosene, lubricants, and paraffin. The companys Chemicals and Marketing segment produces and sells basic and derivative petrochemical products, and other chemical products. Its basic petrochemical products include propylene, ethylene, and benzene; and derivative petrochemicals include polyethylene, polypropylene, ABS, synthetic resins, synthetic fibers, terylene fiber, nitrilon fiber, synthetic rubber, styrene-butadiene rubber, intermediate products, alkylbenzene, and other chemical products, including urea. The companys Natural Gas and Pipeline segment engages in the transmission of crude oil, refined products, and natural gas, as well as the sale of natural gas. As of December 31, 2008, PetroChina Companys proved developed and undeveloped reserves included 10,576 million barrels of crude oil and 60,246.7 billion cubic feet of natural gas in the Peoples Republic of China; and 645 million barrels of crude oil and condensate, and 942.6 billion cubic feet of natural gas internationally. It has a joint venture agreement with PDVSA Petroleo, S.A. for the exploration and development of oil. The company was founded in 1988 and is headquartered in Beijing, the Peoples Republic of China. PetroChina Company Limited is a subsidiary of China National Petroleum Corporation.

Repsol YPF SA operates as an integrated oil and gas company in Spain and internationally. The company engages in the exploration and production of crude oil and natural gas; refining and marketing of oil products; and supply, storage, transportation, distribution, and marketing of natural gas. It also.. Read More

Royal Dutch Shell plc, through its subsidiaries, engages in the exploration, production, and trading of various energy resources worldwide. The company operates through five segments: Exploration and Production, Gas and Power, Oil Sands, Oil Products, and Chemicals. The Exploration and Production segment engages.. Read More

TOTAL S.A., together with its subsidiaries, operates as an integrated oil and gas company worldwide. The company operates in three segments: Upstream, Downstream, and Chemicals. The Upstream segment engages in the exploration, development, and production of oil and natural gas. It also involves in the marketing,.. Read More