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... Wikipedia
Parent organization: CHEVRON CORP.
Headquarters: El Segundo, CA
Founders: Lyman Stewart, Thomas R. Bard, and Wallace Hardison
Founded: October 17, 1890, Santa Paula, CA
Subsidiaries: Unocal Thailand Ltd., Unocal Petroleum Limited, Unocal North Sumatra Geothermal, Ltd., and more
Brands: 76 (1932–97)
Defunct: August 11, 2005
Source: S&P Global Market Intelligence