TULSA, Okla., April 19, 2011 /PRNewswire/ -- The board of directors of ONEOK, Inc. (NYSE: OKE) has declared a quarterly dividend of 52 cents per share of common stock, effective for the first quarter 2011, payable May 13, 2011, to shareholders of record at the close of business April 29, 2011. The dividend remains unchanged from the previous quarter. In its 2011 earnings guidance released on Jan. 18, 2011, the company stated that it expects to increase dividends by 4 cents per share semiannually in 2011, subject to board of directors' approval. In October 2010, ONEOK indicated that it expects to increase its dividend 50 percent to 60 percent between 2011 and 2013, subject to board of directors' approval, and also indicated a long-term dividend payout target of 60 percent to 70 percent of recurring earnings. Since January 2006, the company has increased the dividend 11 times, representing an 86 percent increase during that period. ONEOK, Inc. (NYSE: OKE) is a diversified energy company. We are the general partner and own 42.8 percent of ONEOK Partners, L.P. (NYSE: OKS), one of the largest publicly traded master limited partnerships, which 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 NGL supply in the Mid-Continent and Rocky Mountain regions with key market centers. ONEOK is among the largest natural gas distributors in the United States, serving more than 2 million customers in Oklahoma, Kansas and Texas. Our energy services operation focuses primarily on marketing natural gas and related services throughout the U.S. ONEOK is a Fortune 500 company and is included in Standard & Poor's (S&P) 500 Stock Index. For information about ONEOK, Inc., visit the website: www.oneok.com. For the latest news about ONEOK, follow us on Twitter @ONEOKNews.