ONEOK and ONEOK Partners First-quarter 2013 Conference Call and Webcast Scheduled

TULSA, Okla., April 16, 2013 /PRNewswire/ -- ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) will release their first-quarter 2013 earnings after the market closes on April 30, 2013.

ONEOK's and ONEOK Partners' executive  management will participate in a joint conference call the following day on May 1, 2013, at 11 a.m. Eastern Daylight Time (10 a.m. Central Daylight Time).  The call also will be carried live on ONEOK's and ONEOK Partners' websites.

To participate in the telephone conference call, dial 888-695-0614, pass code 6379130, or log on to www.oneok.com or www.oneokpartners.com.

If you are unable to participate in the conference call or the webcast, the replay will be available on ONEOK's website, www.oneok.com, and ONEOK Partners' website, www.oneokpartners.com, for 30 days. A recording will be available by phone for seven days.   The playback call may be accessed at 888-203-1112, pass code 6379130.

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ONEOK, Inc. (pronounced ONE-OAK) (NYSE: OKE) is a diversified energy company.  We are the general partner and own 43.4 percent of ONEOK Partners, L.P. (NYSE: OKS) as of Dec. 31, 2012, 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 two 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 more information, visit the websites at www.oneok.com or www.oneokpartners.com.

For the latest news about ONEOK and ONEOK Partners, follow us on Twitter @ONEOKNews and @ONEOKPartners.

SOURCE ONEOK, Inc.; ONEOK Partners, L.P.