What is the main purpose of this 8-K filing?

The main purpose of this 8-K filing is to publicly announce that ONEOK Partners, L.P. will participate in the Morgan Stanley Master Limited Partnership CEO Roundtable, fulfilling Regulation FD disclosure requirements.

Who will be presenting on behalf of ONEOK Partners?

John W. Gibson, who serves as the chairman, president, and chief executive officer of ONEOK Partners GP, L.L.C. (the general partner of ONEOK Partners, L.P.), will be the presenter.

Where and when can investors access the presentation materials?

A slide presentation from the event will be made available on the company's website, www.oneokpartners.com, on Tuesday, September 23, 2008.

Does this filing contain new financial statements or material financial updates?

No, this specific 8-K filing (Item 9.01) only lists a news release dated September 19, 2008, from ONEOK Partners, L.P. as an exhibit. The primary focus is on the upcoming participation in the CEO Roundtable, not on providing new financial data within the filing itself.

OKE 8-K: Regulation FD — Sep 19, 2008

Summary

ONEOK Inc. (OKE) filed an 8-K on September 19, 2008, primarily to disclose the participation of ONEOK Partners, L.P. in the Morgan Stanley Master Limited Partnership CEO Roundtable. John W. Gibson, CEO of ONEOK Partners' general partner, is scheduled to present at this event on September 23, 2008, in Houston, Texas. Investors should note that a slide presentation from this event will be made available on the ONEOK Partners website on the day of the presentation.

Key Highlights

1ONEOK Partners, L.P. to participate in the Morgan Stanley Master Limited Partnership CEO Roundtable.
2Presentation date: Tuesday, September 23, 2008.
3Location of event: Houston, Texas.
4John W. Gibson, CEO of ONEOK Partners GP, L.L.C., will be the presenter.
5A slide presentation will be accessible on www.oneokpartners.com on September 23, 2008.
6The filing serves as a Regulation FD disclosure.

ONEOK INC /NEW/ 8-K Report, Regulation FD Disclosure (Sep 19, 2008)

Summary

Key Highlights

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