100-Plus Years and Counting
Originally founded in 1906 as an intrastate natural gas pipeline business in Oklahoma, today ONEOK is one of the nation's premier energy companies involved in the natural gas and natural gas liquids businesses. Our business segments provide safe, reliable energy and services to our diverse customers.
ONEOK is a FORTUNE 500 company and is included in the S&P 500.
View a timeline of accomplishments and milestones.