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Chevron Corporation is an American multinational energy company. It is one of the largest oil and gas companies in the world, with operations spanning the exploration and production of crude oil and natural gas, as well as refining, marketing and distribution of petroleum products. The company also manufactures chemicals and invests in lower-carbon energy technologies, such as hydrogen, biofuels and carbon capture. The headquarters are in San Ramon, California.

Chevron traces its origins to the Standard Oil Company of California, formed in 1879. In 1984, it acquired Gulf Oil, expanding its refining and distribution network. In 2001, Chevron merged with Texaco to form ChevronTexaco, a name used until 2005 when the company reverted to Chevron.

Chevron operates worldwide through upstream, downstream, and chemicals segments. Upstream activities include exploration and production in North America, Latin America, Africa, Europe, the Middle East and Asia. Downstream encompasses refining, marketing, and transportation of petroleum products. Chevron also operates the Chevron Phillips Chemical joint venture and various petrochemical facilities. Notable projects include liquefied natural gas developments in Australia, such as Gorgon and Wheatstone, and other international energy projects.

As a Fortune 500 company listed on the New York Stock Exchange (ticker CVX), Chevron is led by Chief Executive Officer Mike Wirth and governed by a board of directors. It reports annual results publicly and emphasizes returning value to shareholders alongside investments in technology and lower-carbon solutions.

Chevron has faced environmental and social controversies, including lawsuits and disputes over oil contamination in Ecuador's Lago Agrio region and related cleanup costs. The company has defended its operations and pursued legal remedies while expanding its investments in safety, environmental stewardship, and low-carbon technologies.