|   | (Date of report)                  | October 27, 2011 |   |
|--------|-----------------------------------|------------------|--------|
|   | (Date of earliest event reported) | October 26, 2011 |   |

| Delaware                     |   | 1-12202      |   | 93-1120873          |
|------------------------------|--------|--------------|--------|---------------------|
| (State or other jurisdiction |   | (Commission  |   | (IRS Employer       |
| of incorporation)            |   | File Number) |   | Identification No.) |

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| Item 7.01 |   | Regulation FD Disclosure                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
|-----------|--------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|      |   |  On October 26, 2011, we announced that the board of directors of our general partner, ONEOK Partners GP, L.L.C., approved a cash distribution for the quarter ended September 30, 2011.  A copy of the news release is attached as Exhibit 99.1 and is incorporated herein by reference. The information disclosed in this Item 7.01, including Exhibit 99.1 hereto, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the Exchange Act), or otherwise subject to the liabilities under that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act except as expressly set forth by specific reference in such filing.  |
| Item 8.01 |   | Other Events                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|      |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|      |   | On October 26, 2011, the board of directors of our general partner, ONEOK Partners GP, L.L.C., approved a cash distribution of 59.5 cents per unit effective for the third quarter 2011.  The third-quarter distribution is payable on November 14, 2011, to unitholders of record as of November 7, 2011.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
| Item 9.01 |   | Financial Statements and Exhibits                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
|      |   |  Exhibits                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
|      |   | 99.1   News release issued by ONEOK Partners, L.P. dated October 26, 2011.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |

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|   |             |   | ONEOK Partners, L.P.By:  ONEOK Partners GP, L.L.C., General Partner   |
|--------|------------------|--------|---------------------------------------------------------------------------------|
|   |             |   |                                                                            |
| Date:  | October 27, 2011 | By:    | /s/ Robert F. Martinovich                                                       |
|   |             |   | Robert F. MartinovichSenior Vice President,Chief Financial Officer andTreasurer |