Chevron Corporation, through its subsidiaries, engages in the integrated energy and chemicals operations in the United States and internationally. The company operates in two segments, Upstream and Downstream. The Upstream segment engages in the exploration, development, production, and transportation of crude oil and natural gas; liquefaction, transportation, and regasification of liquefied natural gas; transporting crude oil through pipelines; processing, transporting, storage, and marketing of natural gas; and carbon capture and storage, as well as a gas-to-liquids plant. The Downstream segment refines crude oil into petroleum products; markets crude oil, refined products, and lubricants; manufactures and markets renewable fuels; transports crude oil and refined products through pipeline, marine vessel, motor equipment, and rail car; and manufactures and markets commodity petrochemicals, plastics for industrial uses, and fuel and lubricant additives.