ONEOK and ONEOK Partners to Participate in Tuohy Brothers Natural Gas Infrastructure and Production One-on-One Conference

TULSA, Okla., Aug. 4, 2011 /PRNewswire/ -- ONEOK, Inc. (NYSE: OKE) and ONEOK Partners, L.P. (NYSE: OKS) will participate in the Tuohy Brothers Annual Midstream One-on-One Conference in New York City on Tuesday, Aug. 9, 2011.   John W. Gibson, chairman, president and chief executive...