2013 Annual Report

The ONEOK Partners 2013 annual report is available online.

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Corporate Responsibility Report artwork

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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2014 K-1 information is available online. ONEOK Partners, L.P. will mail 2014 Tax Packages, including schedule K-1s, directly to unitholders by February 27, 2015. If you have any questions regarding your tax package, please call our Tax Package Support Center at 1-800-371-2188.

ONEOK Partners, L.P. is one of the largest publicly traded master limited partnerships and 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.


  • Phone Customer Service Shareholder Inquiries:
    877-208-7318

  • Phone Customer Service Royalties Relations:
    918-588-7463

  • Phone Customer Service Schedule K-1:
    800-371-2188

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