Chevron Corporation is an American multinational energy corporation. It is the second largest oil company in America. One of the successor companies of Standard Oil, it is headquartered in San Ramon, California, and active in more than 180 countries. Chevron is engaged in every aspect of the oil and natural gas industries, including hydrocarbon exploration and production; refining, marketing and transport; chemicals manufacturing and sales; and power generation. Chevron is one of the world's largest companies; as of March 2020, it ranked fifteenth in the Fortune 500 with a yearly revenue of $146.5 billion and market valuation of $136 billion. In the 2020 Forbes Global 2000, Chevron was ranked as the 61st-largest public company in the world. It was also one of the Seven Sisters that dominated the global petroleum industry from the mid-1940s to the 1970s.
Chevron's downstream operations manufacture and sell products such as fuels, lubricants, additives, and petrochemicals. The company's most significant areas of operations are the west coast of North America, the U.S. Gulf Coast, Southeast Asia, South Korea and Australia. In 2018, the company produced an average of 791,000 barrels of net oil-equivalent per day in United States.