ONEOK, Inc. is a diversified Fortune 500 corporation based in Tulsa, Oklahoma. ONEOK was founded in 1906 as Oklahoma Natural Gas Company, but It changed its corporate name to ONEOK in December 1980. It also owns major natural gas liquids systems due to the 2005 acquisition of Koch Industries natural gas businesses.
ONEOK, Inc. engages in gathering, processing, storage and transportation of natural gas. The company operates through the following segments: Natural Gas Gathering and Processing, Natural Gas Liquids, and Natural Gas Pipelines. The Natural Gas Gathering and Processing segment provides nondiscretionary services to producers that include gathering and processing of natural gas produced from crude oil and natural gas wells. The Natural Gas Liquids (NGLs)segment owns and operates facilities that gather, fractionate, treat and distribute NGLs and store NGL products. The Natural Gas Pipelines segment owns and operates regulated interstate and intrastate natural gas transmission pipelines and natural gas storage facilities. The company was founded in 1906 and is headquartered in Tulsa, OK.