|   | (Date      of report)                  | January      22, 2009 |
|--------|----------------------------------------|-----------------------|
|   | (Date      of earliest event reported) | January      19, 2009 |

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

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| Item    2.02 | Results of Operations and      Financial Condition See      discussion below under Item 7.01, Regulation FD Disclosure.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
|--------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Item    7.01 | Regulation FD      Disclosure                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|         |  On      January 19, 2010, we released our 2010 earnings guidance and updated our      2009 earnings guidance. Our      2010 net income is expected to be in the range of $450 million to $490      million.  Preliminary estimates for our 2010 distributable cash      flow (DCF) are in the range of $580 million to $620 million. Our      2009 net income is expected to be at the high end of the guidance range of      $3.40 to $3.60 per unit provided on November 3, 2009.  DCF is      expected to be in the range of $556 million to $560 million, above the      high end of the 2009 distributable cash flow guidance range of $530      million to $550 million provided on November 3, 2009. See      exhibit 99.1 for the reconciliation of net income to EBITDA and      reconciliation of EBITDA to distributable cash flow, which is incorporated      herein by reference.  |
| Item    9.01 | Financial Statements and      Exhibits                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
|         |  Exhibits                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
|         | 99.1   News      release issued by ONEOK, Inc. and ONEOK Partners, L.P. dated January 19,      2010.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |

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|   |                  |   | ONEOK      Partners, L.P.By:  ONEOK      Partners GP, L.L.C., General      Partner |
|--------|-----------------------|--------|----------------------------------------------------------------------------------------------|
|   |                  |   |                                                                                         |
| Date:  | January      22, 2010 | By:    | /s/ Curtis L.      Dinan                                                                     |
|   |                  |   | Executive      Vice President -Chief      Financial Officer andTreasurer                |