Chevron Corp
A global energy company that finds, produces, and refines oil and natural gas, selling fuel under the Chevron, Texaco, and Caltex names and pumping out liquefied natural gas at sites like Australia's Gorgon. It traces back to the Pacific Coast Oil Company of 1879, which became Standard Oil of California, and took the name Chevron in 1984 after buying Gulf Oil. Fun fact: the chevron name and three-bar logo come from the sergeant's rank insignia on military sleeves.