Union Oil Company of California, and its holding company Unocal Corporation, together known as Unocal was a major petroleum explorer and marketer in the late 19th century, through the 20th century, and into the early 21st century. It was headquartered in El Segundo, California, United States.
- Country
- United States
- Headquarters
- Los Angeles
- Inception
- 1890
- Website
- http://www.unocal.in
