ONEOK, Inc. gathers, treats, fractionates, and transports natural gas liquids (NGL), as well as stores, markets, and distributes NGL products. The company operates 17,500 miles of natural gas gathering pipelines, 1,500 miles of FERC-regulated interstate natural gas pipelines, 5,100 miles of state-regulated intrastate transmission pipelines, six NGL storage facilities, and eight NGL product terminals. It serves integrated and independent exploration and production companies. ONEOK was founded in 1906 and is headquartered in Tulsa, OK.