Marathon Oil Corporation
Houston, TX Marathon Oil Corporation is engaged in the business of exploration and production of crude oil & nat More...
www.marathon.com

Chevron
San Ramon, California Chevron is an energy resource and project development company. We engage in oil and natural gas indu More...
www.chevron.com/countries/usa

Tesoro Petroleum
San Antonio, Texas Tesoro Petroleum is a refiner and marketer of petroleum products. Our business includes refining, re More...
www.tesoropetroleum.com

Sinclair Oil Corporation
Salt Lake City, UT Sinclair Oil Corporation is engaged in the exploration and production of oil and natural gas. We pro More...
www.sinclairoil.com

Quicksilver Resources,Inc.
Fort Worth, TX Quicksilver Resources Inc. is a natural gas and crude oil exploration & production company. We engag More...
www.qrinc.com

Pogo Producing Company
Houston, TX Pogo Producing Company is engaged in the exploration, development, and production of oil & natural g More...
www.pogoproducing.com

Baker Hughes
Houston, Texas Baker Hughes is an oilfield service company. We provide oil and natural gas industry products & serv More...
www.bakerhughes.com

Pioneer Natural Resources Company
Irving, TX Pioneer Natural Resources Company is an exploration and production company. We focus on legacy gas a More...
www.pioneernrc.com

Occidental Petroleum Corporation
Los Angeles, California Occidental Petroleum Corporation is an oil & natural gas exploration and production company. We offe More...
www.oxy.com

Oneok Partners, L.P.
Tulsa, Oklahoma Oneok Partners, L.P. specializes in the gathering, processing, storage and transportation of natural More...
www.oneok.com/partner_default.jsp

Murphy Oil Corporation
El Dorado, AR Murphy Oil Corporation is an oil & gas exploration and production company. We focus on providing pet More...
www.murphyoilcorp.com

Martin Resource Management, Inc
Kilgore, Texas Martin Resource Management, Inc provides transportation, terminalling, marketing and logistics manag More...
www.martin-gas.com

Kinder Morgan
Houston, TX Kinder Morgan is an energy transportation, storage and distribution companies. Our pipelines are use More...
www.kindermorgan.com

Key Energy Services
Houston, TX Key Energy Services is a rig-based well services company in the industry. Our services include well More...
www.keyenergy.com

Hess Corporation
New York, New York Hess Corporation is an energy company, engaged in the exploration and production of crude oil and na More...
www.hess.com

Exxon Mobil Corporation
Irving, TX Exxon Mobil Corporation is a petroleum and petrochemical company. Our activities range from the expl More...
www.exxon.mobil.com

EXCO Resources, Inc.
Dallas, TX EXCO Resources, Inc. is an oil and natural gas company. We engage in the acquisition, development an More...
www.excoresources.com

Whiting Petroleum Corporation
Denver, Colorado Whiting Petroleum Corporation explores and produces natural gas & crude oil. More...
www.whiting.com

Equitable Resources, Inc.
Pittsburgh, PA Equitable Resources is an integrated energy company. We focus on the area of natural-gas supply, tra More...
www.eqt.com

El Paso Corporation
Houston, TX El Paso Corporation provides natural gas and related energy products. We provide natural gas pipelin More...
www.epenergy.com