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Call Before You Dig

Avoid careless damage and accidents by calling 811 before starting your springtime excavation project.

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2011 Annual Report

The ONEOK 2011 annual report is available online.

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Corporate Responsibility

We recognize that our continued progress in improving our environment, safety and health performance is a result of the goals we set and the commitment of our entire ONEOK team.

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Who We Are

ONEOK is the general partner of ONEOK Partners, one of the largest publicly traded master limited partnerships; is among the largest natural gas distributors; and our energy services operation focuses primarily on marketing natural gas and related services throughout the U.S.

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The ONEOK website will be unavailable from 9:30 p.m. Friday, May 18th, until 10 a.m. Saturday, May 19th.

ONEOK is a diversified energy company.
We are the general partner of ONEOK Partners, one of the largest publicly traded master limited partnerships, which is a leader in the gathering, processing, storage and transportation of natural gas in the U.S. and owns one of the nation's premier natural gas liquids (NGL) systems, connecting NGL supply in the Mid-Continent and Rocky Mountain regions with key market centers. We are among the largest natural gas distributors in the U.S., serving more than 2 million customers in Oklahoma, Kansas and Texas. Our energy services operation focuses primarily on marketing natural gas and related services throughout the U.S. ONEOK is a Fortune 500 company.

Annual Meeting Shareholder Materials
Electronic versions of 2012 annual meeting shareholder materials are available here.


  • E-MailContact ONEOK
  • Phone Customer Service Shareholder Inquiries:

    1-877-208-7318

  • Phone Customer Service Royalties Relations:

    1-918-588-7463

  • 811Call 811 before you dig.

  • ONEOK Partners' Schedule K-1 Questions:
    1-800-371-2188.