|   | (Date      of report)                  | February      3, 2010 |
|--------|----------------------------------------|-----------------------|
|   | (Date      of earliest event reported) | January      28, 2010 |

| 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      January 28, 2010, we announced that ONEOK Partners, L.P. and ONEOK, Inc.      will release fourth-quarter and year-end 2009 earnings after the market      closes on Monday, February 22, 2010. A      joint conference call will be held the following day on February 23, 2010,      at 11:00 a.m. Eastern Time (10:00 a.m. Central Time).  The      conference call number is 866-814-1913, pass code      1427228.   The      call will also be carried live at www.oneokpartners.com and      www.oneok.com.   A      replay will be available on both web sites for 30 days.  A      recording will be available by phone for seven days.  The      playback call may be accessed at 866-837-8032, pass code      224735. Additionally,      information on the conference calls and webcasts for the first, second and      third quarters of 2010 was announced.  |
| Item    9.01 |   | Financial Statements and      Exhibits                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
|         |   |  Exhibits                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
|         |   | 99.1   News      release issued by ONEOK, Inc. and ONEOK Partners, L.P. dated January 28,      2010.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
|         |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |

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|   |                  |   | ONEOK      Partners, L.P.By:  ONEOK      Partners GP, L.L.C., General      Partner |
|--------|-----------------------|--------|----------------------------------------------------------------------------------------------|
|   |                  |   |                                                                                         |
| Date:  | February      3, 2010 | By:    | /s/ Curtis L.      Dinan                                                                     |
|   |                  |   | Executive      Vice President -Chief      Financial Officer andTreasurer                |