The format of this page is based on current ownership and where they largely operate:

• Parent Company
  • Daughter (acquired) companies and important brands

• ExxonMobil
  • Exxon - United States
  • Mobil - United States
  • Esso - International

• Shell Oil or Royal Dutch/Shell - International

• BP Beyond Petroleum
  • British Petroleum or BP
  • Standard Oil of Ohio or Sohio (Branded BP)
  • Amoco (Branded BP)
  • Arco - United States

• Total - France
  • Total
  • Petrofina
  • Elf Aquitaine

• ChevronTexaco - International
  • Chevron - United States and Canada
  • Texaco - United States and Canada
  • CalTex - Asia
  • Gulf Oil (this is complicated)

• ConocoPhillips
  • Conoco
  • Phillips (Phillips 66)
  • Union 76 (former brand of Union Oil of California, which has exited the retail fuel business)
  • Circle K
  • Jet Oil
  • Coastal Petroleum

• Valero Energy
  • Valero
  • Diamond Shamrock
  • Ultramar
  • Beacon
  • Total

• Tesoro Petroleum
  • Tesoro
  • Mirastar

• Marathon Ashland Petroleum
  • Marathon
  • Speedway
  • Pilot

• Sinclair Oil

• Sunoco - United States

• Amerada Hess Corporation
  • Hess - United States

• Petroleos de Venezuela
  • Citgo - United States

• Petro-Canada - Canada

• Imperial Oil

• Husky Energy - Canada
  • Husky
  • Mohawk

• Petróleos Mexicanos - Mexico
  • Pemex

• Yukos - Russia