Chevron is an integrated energy company with exploration, production, and refining operations worldwide. It is the second-largest oil company in the United States with production of 3.1 million of barrels of oil equivalent a day, including 7.7 million cubic feet a day of natural gas and 1.8 million of barrels of liquids a day. Production activities take place in North America, South America, Europe, Africa, Asia, and Australia. Its refineries are in the U.S. and Asia for total refining capacity of 1.8 million barrels of oil a day. Proven reserves at year-end 2021 stood at 11.3 billion barrels of oil equivalent, including 6.1 billion barrels of liquids and 30.9 trillion cubic feet of natural gas.