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Call Before You Dig

April is National Safe Digging Month. Avoid careless damage and accidents by calling 811 before starting your springtime excavation project.

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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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2013 Annual Report

The ONEOK Partners 2013 annual report is available online.

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Schedule K-1 
2013 K-1 information is available online. ONEOK Partners, L.P. will mail 2013 Tax Packages, including schedule K-1s, directly to unitholders by February 28, 2014. If you have 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:
    1-877-208-7318

  • Phone Customer Service Royalties Relations:

    1-918-588-7463

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

  • EmailContact ONEOK Partners
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