POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby constitutes
and appoints Stephen Lake and Eric Grimshaw, or either of them, the
undersigned's true and lawful attorney-in-fact to:
(1) Execute for and on behalf of the undersigned, in the undersigned's capacity
as an officer and/or director of ONEOK Partners GP, L.L.C. the general partner
of ONEOK Partners, L.P. (the Company), Forms 3, 4, and 5 in accordance with
Section 16(a) of the Securities Exchange Act of 1934 and the rules thereunder;
(2) Do and perform any and all acts for and on behalf of the undersigned which
may be necessary or desirable to complete and execute any such Forms 3, 4, or 5
and timely file such form with the United States Securities and Exchange
Commission and any stock exchange or similar authority;
(3) Take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney-in-fact, may be of benefit to,
in the best interest of, or legally required by the undersigned, it being
understood that the documents executed by such attorney-in-fact on behalf of the
undersigned pursuant to this Power of Attorney shall be in such form and shall
contain the terms and conditions as such attorney-in-fact may approve in such
attorney-in-fact's discretion.
The undersigned hereby grants to each such attorney-in-fact full power
and authority to do and perform any and every act and thing whatsoever
requisite, necessary, or proper to be done in the exercise of any of the rights
and powers herein granted, as fully to all intents and purposes as the
undersigned might or could do if personally present, with full power of
revocation, hereby ratifying and confirming all that each such attorney-in-fact
shall lawfully do or cause to be done by virtue of this power of attorney and
the rights and powers herein granted. The undersigned acknowledges that neither
the Corporation nor the above-named individuals, in serving in such capacity at
the request of the undersigned, are assuming any of the undersigned's
responsibilities to comply with Section 16 of the Securities Exchange Act of
1934.
The Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4, and 5 with respect to the
undersigned's holdings of and transactions in securities issued by the
Corporation, unless earlier revoked by the undersigned in a signed writing
delivered to the foregoing attorney-in-fact. This Power of Attorney revokes all
such special powers of attorney granted to individuals in the past to act on
behalf of the undersigned for the purposes stated above.
IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
be executed as of this 29th day of November, 2016.
/s/ Gary N. Petersen
GARY N. PETERSEN
CONFIRMING STATEMENT
This Statement confirms that the undersigned has authorized and
designated Stephen Lake and Eric Grimshaw, or either of them, to execute and
file on the undersigned's behalf all Forms 3, 4, and 5 (including any amendments
thereto) that the undersigned may be required to file with the United States
Securities and Exchange Commission as a result of the undersigned's ownership of
or transactions in securities of ONEOK Partners, L.P. The authority of the
above-named individuals under this Statement shall continue until the
undersigned is no longer required to file Forms 3, 4, or 5 with regard to the
undersigned's ownership of or transactions in securities of ONEOK Partners, L.P.
unless earlier revoked in writing. This Statement revokes all such special
powers of attorney granted to individuals in the past to act on behalf of the
undersigned for the purposes stated above. The undersigned acknowledges that
neither ONEOK Partners, L.P. nor the above-named individuals are assuming any of
the undersigned's responsibilities to comply with Section 16 of the Securities
Exchange Act of 1934.
/s/ Gary N. Petersen
GARY N. PETERSEN
Dated: November 29, 2016