Material Safety Data Sheets

Material safety data sheets (MSDS) provide information regarding substance properties and safe handling.  MSDS for ONEOK products can be accessed using the links below:


Financial InformationInvestor Information

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Stock InformationAbout ONEOK

  • 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.