Motiva Enterprises, LLC, is a 50–50 joint venture between Shell Oil Company (the wholly owned American subsidiary of Royal Dutch Shell) and Saudi Refining (controlled by Saudi Aramco). The company is currently headquartered in Houston, Texas, United States.
Motiva Enterprises posted revenue of $24 billion during fiscal 2004.
In 1988 Texaco and Saudi Refining agreed to form a joint venture known as Star Enterprise in which Saudi Refining would own a 50 percent share of Texaco's refining and marketing operations in the eastern United States and Gulf Coast. In 1997 Shell embarked on two joint ventures with Texaco where the companies merged their marketing and refining operations. The operations in the western and midwestern United States were merged into a company called Equilon. The Star Enterprise operation and Shell's eastern and southeastern operations were merged into a company called Motiva. After Texaco merged with Chevron in 2001, Shell and Saudi Refining purchased Texaco's interests in the joint ventures. Equilon became a fully owned subsidiary of Shell, while Saudi Aramco and Shell each became equal owners of Motiva.
In 2016 Saudi Arabian Oil Company ("Saudi Aramco") through its wholly owned Saudi Refining Inc. ("SRI") subsidiary and Royal Dutch Shell plc ("Shell"), through its U.S. downstream affiliate, announce today they have signed a non-binding Letter of Intent to divide the assets of Motiva Enterprises LLC. The Motiva joint venture was formed in 1998 and has operated as a 50/50 refining and marketing joint venture between the parties since 2002. See 
Motiva Enterprises owns and operates three oil refineries in the gulf coast region of the United States: a 600,000 bbl/d (95,000 m3/d) refinery in Port Arthur, Texas, a 235,000 bbl/d (37,400 m3/d) refinery in Convent, Louisiana, and a 240,000 bbl/d (38,000 m3/d) refinery in Norco, Louisiana. On May 25th, 2012, Motiva officially completed its expansion of the Port Arthur refinery to a capacity of 600,000 bbl/d (95,000 m3/d) making it the largest refinery in North America and the fifth largest in the world.
Motiva's products include diesel, petrol, liquefied petroleum gas (LPG), aviation fuel, and lubricants which it supplies to American states in the South, Mid-Atlantic, and the Northeast. Marketing outlets include 7600 Shell-branded service stations. Storage and Distribution terminals number 42.
- "Saudi-Texaco Joint Venture". The New York Times. 3 January 1989. Retrieved 19 April 2011.
- "Aspects of the Refining/Marketing Joint Ventures of Shell Oil, Star Enterprises, and Texaco". Eia.doe.gov. Archived from the original on 15 June 2010. Retrieved 19 April 2011.
- Houston Business Journal (8 February 2002). "Shell to brand new U.S. gas stations". Bizjournals.com. Retrieved 19 April 2011.