Exxon Mobil Corp. explores, develops and distributes crude oil and natural gas. The company through its divisions and affiliated companies, engages in its principal business, is energy, involving exploration for, and production of, crude oil and natural gas, manufacture of petroleum products and transportation and sale of crude oil, natural gas and petroleum products. It manufactures and markets commodity petrochemicals, including olefins, aromatics, polyethylene and polypropylene plastics and a variety of specialty products. The company also has interests in electric power generation facilities. It operates business under three segments: Upstream, Downstream and Chemical. The Upstream segment is organized and operates to explore for and produce crude oil and natural gas. The Downstream segment manufactures and sells petroleum products. The refining and supply operations encompasses global network of manufacturing plants, transportation systems, and distribution centers provides fuels, lubricants, and other high-value products and feedstocks to customers. The Chemical segment operates to manufacture and sell petrochemicals. It supplies olefins, polyolefin's, aromatics, and a wide variety of other petrochemicals. The company operates and markets products in the U.S. and most other countries of the world. Exxon Mobil was founded by John D. Rockefeller in 1882 and is headquartered in Irving, TX.