ONEOK Partners Increases Quarterly Distribution

TULSA, Okla., April 15 /PRNewswire-FirstCall/ -- The board of directors of the general partner of ONEOK Partners, L.P. today announced that it has increased its quarterly cash distribution to $1.04 per unit from $1.025 per unit, effective for the first quarter 2008, resulting in an annualized cash distribution of $4.16. The distribution is payable May 15, 2008, to unitholders of record as of April 30, 2008.

"The solid performance and sustained growth of the partnership has resulted in nine consecutive quarterly distribution increases," said John W. Gibson, chairman, president and chief executive officer of ONEOK Partners. "This year we expect to create even more value for our unitholders as our $1.6 billion in internally generated growth projects begin to come on line, generating additional distributable cash flow."

ONEOK Partners has increased its distribution 30 percent since April 2006.

ONEOK Partners, L.P. is one of the largest publicly traded limited partnerships, and is a leader in the gathering, processing, storage and transportation of natural gas in the U.S. and owns one of the nation's premier natural gas liquids (NGL) systems, connecting much of the natural gas and NGL supply in the Mid-Continent with key market centers. Our general partner is a wholly owned subsidiary of ONEOK, Inc. , a diversified energy company, which owns 47.8 percent of the overall partnership interest. ONEOK is one of the largest natural gas distributors in the United States, and its energy services operation focuses primarily on marketing natural gas and related services throughout the U.S. For more information, visit the Web sites at http://www.oneokpartners.com/ or http://www.oneok.com/.

Some of the statements contained and incorporated in this news release are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. The forward-looking statements relate to financial adjustments in connection with the accelerated share repurchase program and other matters. The Private Securities Litigation Reform Act of 1995 provides a safe harbor for forward-looking statements in certain circumstances. OKS-FD

Analyst Contact: Christy Williamson 918-588-7163 Media Contact: Tom Droege 918-588-7561