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

Teppco Partners
Houston, Texas Teppco Partners designs, installs, tests, operates and maintains pipelines to meet regulator standar More...
www.teppco.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

Petron Industries Inc.
Houston, Texas Petron Industries Inc. is a manufacturer and supplier of drilling instrumentation and control system More...
www.petronworld.com

Newfield Exploration Company
Houston, TX Newfield Exploration Company is a crude oil and natural gas exploration & production company. We dri More...
www.newfld.com

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

Knowledge Systems
Sugarland, TX Knowledge Systems is a provider of software & services that improve well planning & drilling for the More...
www.knowsys.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

Ivanhoe Energy Inc
Bakersfield, CA Ivanhoe Energy is an oil & gas exploration and development company. We deal with heavy oil upgrading More...
www.ivanhoe-energy.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

Edge Petroleum Corporation
Houston, Texas Edge Petroleum Corporation is an energy company engaged in exploration, development and production o More...
www.edgepet.com

Dominion
New Orleans, LA Dominion is an energy producing company. We provide gas transportation and storage services. We serv More...
www.dom.com

Denbury Resources
Plano, TX Denbury Resources is an independent oil and gas company. Our pipe lines are safest and least costly More...
www.denbury.com

Clayton Williams Energy
Midland, TX Clayton Williams Energy is an independent exploration & production company that develops & produces More...
www.claytonwilliams.com

Chesapeake Energy Corporation
Oklahoma City, OK Chesapeake Energy Corporation is a producer of natural gas. We focus on exploratory and developmenta More...
www.chkenergy.com

Callon Petroleum Company
Natchez, MS Callon Petroleum Company focuses on the exploration, development and operation of oil & gas industry More...
www.callon.com