- EnCana Corporation
(NYSE:ECA)
Independent natural gas producer and gas storage operator.
www.encana.com
- Petr?leos de Venezuela SA
State-owned PDVSA conducts oil and natural gas exploration, production, refining, and marketing.
www.pdvsa.com
- Williams Companies
(NYSE:WMB)
Moves, manages, and markets a variety of energy products, including natural gas, liquid hydrocarbons, petroleum, and electricity.
www.williams.com
- LUKOIL
Russian oil producer with reserves located primarily in western Siberia.
www.lukoil.com
- Sunoco
(NYSE:SUN)
Manufactures and markets petroleum products that include Sunoco gasoline, heating oil, lubricants, and petrochemicals.
www.sunocoinc.com
- Occidental Petroleum
(NYSE:OXY)
Engages in exploration, development, and marketing of crude oil and gas, and manufactures and markets basic chemicals, polymers, and plastics.
www.oxy.com
- ChevronTexaco
(NYSE:CVX)
Global energy company engaged in oil and gas exploration and production; refining, marketing, and transportation; chemicals manufacturing and sales; and power generation.
www.chevrontexaco.com
- Petro-Canada
Integrated oil and gas company.
www.petro-canada.ca
- Talisman Energy
(NYSE:TLM)
Internationally diversified oil and gas producer.
www.talisman-energy.com
- Japan Energy Corp
Integrated energy supplier, with petroleum operations extending from exploration and development to refining and marketing.
www.j-energy.co.jp
- Conoco
Specializes in the exploration, production, refining, and marketing of petroleum products.
www.conoco.com
- Devon Energy
(NYSE:DVN)
Engaged in oil and gas exploration, production, and property acquisitions.
www.devonenergy.com
- Nexen
(NYSE:NXY)
Oil and gas exploration and production company.
www.nexeninc.com
- PTT Public Company Limited
Fully integrated gas company and state enterprise under the supervision of the Ministry of Industry.
www.pttplc.com
- BJ Services Company
(NYSE:BJS)
Provider of pressure pumping and other oilfield services to the petroleum industry.
www.bjservices.com
- Oil & Natural Gas Corporation Ltd. (ONGC)
Engaged in hydrocarbon exploration and production and offers related R&D; services.
www.ongcindia.com
- Ecopetrol
National oil company.
www.ecopetrol.com.co
- Unocal
Produces and sells crude oil, natural gas, and geothermal energy, and manufactures and sells petroleum fuels and lubricants, fertilizers, and specialty minerals.
www.unocal.com
- Pilot Corporation
Operates gas stations and convenience stores across the U.S.
www.pilotcorp.com
- Phillips Petroleum
Explores and produces crude oil, natural gas, and liquids, gathers, processes, and markets natural gas produced by others, refines and transports petroleum products, and manufactures petroleum-based chemical products.
www.phillips66.com
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