ONEOK Announces Two-for-One Stock Split

ONEOK, Inc.

today announced that its board of directors has authorized a two-for-one split of ONEOK common stock, subject to shareholder approval of a proposal to increase the number of authorized shares of ONEOK common stock to 600 million from 300 million. The proposal will be voted on at the company's 2012 annual meeting of shareholders on May 23, 2012.