oneok, inc. is a diversified energy company with operations in 14 states. we are the general partner of oneok partners, l.p., one of the largest publicly traded master limited partnerships, which owns one of the nation's premier natural gas liquids (ngl) systems, connecting ngl supply in the mid-continent, permian and rocky mountain regions with key market centers and is a leader in the gathering, processing, storage and transportation of natural gas in the u.s. oneok is a fortune 500 company and is included in standard & poor's (s&p) 500 stock index.