Unocal

Union Oil Company of California and Unocal Corporation

Former type	merged into Chevron Corporation, Downstream business Active with M/s Raaj Unocal Lubricants Limited
Industry	Oil and Gas
Founded	October 17, 1890
Founder	Thomas Bard Wallace Hardison Lyman Stewart
Defunct	August 10, 2005, except Asia Operations
Headquarters	El Segundo, CA, US
Key people	Charles R. Williamson (Chairman) & (CEO) John F. Imle Jr. (Vice Chairman) Timothy H. Ling (President) & (COO)
Services	Petroleum explorer and marketer
Revenue	$ 8.204 billion (2004)
Operating income	$ 1.145 billion (2004)
Net income	$ 1.208 billion (2004)
Total assets	$ 13.101 billion (2004)
Total equity	$ 5.217 billion (2004)
Number of employees	6,400 (2005)
Website	www.unocal.in

Union Oil Company of California, dba Unocal /ˈjuːnoʊkæl/ is a company that 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.

Unocal was involved in domestic and global energy projects. Unocal was one of the key players in the CentGas consortium, which attempted to build the Trans-Afghanistan Pipeline to run from the Caspian area, through Afghanistan, to the Indian Ocean, at a time after the recent Taliban siege of Kabul in 1996.

On August 10, 2005, Unocal merged its entire upstream petroleum business with Chevron Corporation and became a wholly owned subsidiary. Unocal has now ceased operations as an independent company, but continues to conduct many operations as Union Oil Company of California, a Chevron company.

Since 1990, Unocal continues to have strong presence in the downstream petroleum business with their technical collaborators M/s Raaj Unocal Lubricants Ltd for manufacture and marketing of their lubricating products in Asia. Raaj Unocal Lubricants Ltd continues the legacy of Unocal 76 in the downstream petroleum business and has Intellectual property rights of the brand since 1994.

The Union Oil Company of California was founded on October 17, 1890, in Santa Paula, California, by Lyman Stewart, Thomas Bard, and Wallace Hardison. It was a merger of three Southern California Oil Companies: the Sespe Oil Company, the Hardison and Stewart Oil Company, and the Mission Transfer Company. All three were notable as being completely unaffiliated with Standard Oil. Union Oil moved its headquarters to Los Angeles, in 1901. The original headquarters in Santa Paula is a California Historical Landmark.