ONEOK is a major integrated midstream energy infrastructure company that owns and operates approximately 60,000 miles of pipelines and related assets across North America, providing gathering, processing, fractionation, transportation, storage, and marine export services for natural gas, natural gas liquids, refined products, and crude oil. The company serves energy producers, petrochemical and refining companies, utilities, and industrial customers through fee-based contracts that generate approximately 90% of earnings, minimizing direct commodity price exposure while supporting domestic and international energy demand. Revenue is earned through transportation and storage fees, processing services, terminal and optimization activities, and long-term firm commitments, with operations spanning major North American energy basins including the Permian, Williston, and Powder River Basins.