ONEOK and ONEOK Partners Schedule Second-Quarter 2009 Earnings Conference Call and...

ONEOK and ONEOK Partners Schedule Second-Quarter 2009 Earnings Conference Call
and Webcast

TULSA, Okla., July 6 /PRNewswire-FirstCall/ -- ONEOK, Inc. (NYSE: OKE) and
ONEOK Partners, L.P. (NYSE: OKS) will release their second-quarter earnings
after the market closes on Aug. 4, 2009.

A joint conference call will be held the following day on Aug. 5, 2009, 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' Web sites.

ONEOK's and ONEOK Partners' senior management teams will participate in the
call and webcast.
What: ONEOK, Inc. and ONEOK Partners, L.P. second-quarter earnings
conference call and webcast

When: 11 a.m. Eastern, Aug. 5, 2009
10 a.m. Central

Where: 1) Phone conference call 866-802-4305, pass code 1376622
2) Log on to the webcast at www.oneok.com
3) Log on to the webcast at www.oneokpartners.com

If you are unable to participate in the conference call or the webcast, the
replay will be available on ONEOK's Web site, www.oneok.com, and ONEOK
Partners' Web site, www.oneokpartners.com, for 30 days. A recording will be
available by phone for seven days. The playback call may be accessed at
866-837-8032, pass code 1376622.

ONEOK, Inc. (NYSE: OKE) is a diversified energy company. We are the general
partner and own 45.3 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.

ONEOK Partners, L.P. (NYSE: OKS) is one of the largest publicly traded master
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 NGL supply in the
Mid-Continent and Rocky Mountain regions with key market centers. Its general
partner is a wholly owned subsidiary of ONEOK, Inc. (NYSE: OKE), a diversified
energy company, which owns 45.3 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 www.oneokpartners.com or
www.oneok.com.

Analyst Contact: Dan Harrison
918-588-7950

Media Contact: Megan Washbourne
918-588-7572

OKE-FV OKS-FV

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

Analysts, Dan Harrison, +1-918-588-7950, or Media, Megan Washbourne,
+1-918-588-7572, both of ONEOK, Inc.