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

The main purpose of this filing is to announce ONEOK Inc.'s participation in the Howard Weil Inc. 35th Annual Energy Conference and to provide details about the presentation, including the date, time, location, and presenter.

Who will be presenting on behalf of ONEOK?

John W. Gibson, who serves as the Chief Executive Officer of ONEOK, Inc. and President and Chief Executive Officer of ONEOK Partners, L.P., will be presenting.

Where can investors access the presentation materials?

The slide presentation will be made accessible to investors on April 3, 2007, through the company's websites: www.oneok.com and www.oneokpartners.com.

Is this filing related to any financial results or significant corporate changes?

No, this particular filing (dated March 15, 2007) is primarily a Regulation FD disclosure announcing participation in an investor conference. It does not appear to contain new financial statements or disclose significant corporate events beyond the conference presentation.

OKE 8-K: Regulation FD — Mar 15, 2007

Summary

This Form 8-K filing by ONEOK Inc. on March 15, 2007, primarily serves to disclose the company's participation in Howard Weil Inc.'s 35th Annual Energy Conference. CEO John W. Gibson is scheduled to present on April 3, 2007, providing investors with an opportunity to hear directly from leadership about the company's strategy and outlook. The presentation materials will be made available online on both the ONEOK and ONEOK Partners websites, ensuring broader access to the information shared.

Key Highlights

1ONEOK Inc. announced its participation in the Howard Weil Inc. 35th Annual Energy Conference.
2The presentation is scheduled for April 3, 2007, in New Orleans, Louisiana.
3John W. Gibson, CEO of ONEOK Inc. and ONEOK Partners, L.P., will be the presenter.
4Presentation materials will be accessible on www.oneok.com and www.oneokpartners.com on April 3, 2007.
5This filing is a Regulation FD Disclosure under Item 7.01.
6An exhibit, Press Release dated March 14, 2007, is included as part of this filing.

ONEOK INC /NEW/ 8-K Report, Regulation FD Disclosure (Mar 15, 2007)

Summary

Key Highlights

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