Saudi Arabian Oil Company operates as an integrated oil and gas company in the Kingdom of Saudi Arabia and internationally. The company operates through two segments, Upstream and Downstream. The Upstream segment explores, develops, produces, and sells crude oil, condensate, natural gas, and natural gas liquids (NGLs). As of December 31, 2019, its reserves included 258.6 billion barrels of oil equivalent, including 201.9 billion barrels of crude oil and condensate; 25.7 billion barrels of NGLs; and 190.6 trillion standard cubic feet of natural gas, as well as 510 reservoirs within 138 fields distributed throughout the Kingdom and its territorial waters. The Downstream segment produces various chemicals, including ethylene, ethylene glycol, ethylene oxide, methanol, methyl tertiary butyl ether, polyethylene and engineering plastics and their derivatives, and other products; and base oils, as well as in the refining and retail operations. It also supplies oil products; and trades in refined petroleum and liquid chemical products, and polymers. The company also develops, manufactures, and markets high-performance rubber; and provides crude oil storage, financial, and marine management and transportation services. Saudi Arabian Oil Company was founded in 1933 and is headquartered in Dhahran, the Kingdom of Saudi Arabia.