Exhibit 24

                               POWER OF ATTORNEY
                 FOR EXECUTING FORM ID, FORMS 3, FORMS 4 AND FORMS 5,
                      FORM 144 AND SCHEDULE 13D AND SCHEDULE 13G

The undersigned hereby constitutes and appoints Will Jordan and David C.
Treadwell, or either of them acting without the other, with full power of
substitution, as the undersigned's true and lawful attorney-in-fact to:

      (1)   Execute for and on behalf of the undersigned a Form ID (including
            amendments thereto), or any other forms prescribed by the Securities
            and Exchange Commission, that may be necessary to obtain codes and
            passwords enabling the undersigned to make electronic filings with
            the Securities and Exchange Commission of the forms referenced in
            clause (2) below;

      (2)   Execute for and on behalf of the undersigned any (a) Form 3, Form 4
            and Form 5 (including amendments thereto) in accordance with Section
            16(a) of the Securities Exchange Act of 1934, as amended (the
            "Exchange Act"), and the rules thereunder, (b) Form 144 (including
            amendments thereto) and (c) Schedule 13D and Schedule 13G (including
            amendments thereto) in accordance with Sections 13(d) and 13(g) of
            the Exchange Act, but only to the extent each form or schedule
            relates to the undersigned's beneficial ownership of securities of
            Roan Resources, Inc., or any of its subsidiaries;

      (3)   Do and perform any and all acts for and on behalf of the undersigned
            that may be necessary or desirable to complete and execute any Form
            ID, Form 3, Form 4, Form 5, Form 144, Schedule 13D or Schedule 13G
            (including amendments thereto) and timely file the forms or
            schedules with the Securities and Exchange Commission and any stock
            exchange or quotation system, self-regulatory association or any
            other authority, and provide a copy as required by law or advisable
            to such persons as the attorney-in-fact deems appropriate; and

      (4)   Take any other action in connection with the foregoing that, in the
            opinion of the attorney-in-fact, may be of benefit to, in the best
            interest of or legally required of the undersigned, it being
            understood that the documents executed by the attorney- in-fact on
            behalf of the undersigned pursuant to this Power of Attorney shall
            be in the form and shall contain the terms and conditions as the
            attorney-in-fact may approve in the attorney-in-fact's discretion.

The undersigned hereby grants to the attorney-in-fact full power and authority
to do and perform all and every act requisite, necessary or proper to be done in
the exercise of any of the rights and powers granted herein, as fully to all
intents and purposes as the undersigned might or could do if personally present,
with full power of substitution or revocation, hereby ratifying and confirming
all that the attorney-in-fact shall lawfully do or cause to be done by virtue of
this Power of Attorney and the rights and powers granted herein.  The
undersigned acknowledges that the attorney-in-fact, in serving in such capacity
at the request of the undersigned, are not assuming (nor is Roan Resources, Inc.
assuming) any of the undersigned's responsibilities to comply with Section 16 of
the Exchange Act.

The undersigned agrees that the attorney-in-fact may rely entirely on
information furnished orally or in writing by or at the direction of the
undersigned to the attorney-in-fact.  The undersigned also agrees to indemnify
and hold harmless Roan Resources, Inc. and the attorney- in-fact against any
losses, claims, damages or liabilities (or actions in these respects) that arise
out of or are based upon any untrue statements or omissions of necessary facts
in the information provided by or at the direction of the undersigned, or upon
the lack of timeliness in the delivery of information by or at the direction of
the undersigned, to the attorney-in fact for purposes of executing,
acknowledging, delivering or filing a Form ID, Form 3, Form 4, Form 5, Form 144,
Schedule 13D or Schedule 13G (including amendments thereto) with respect to the
undersigned's holdings of and transactions in securities issued by Roan
Resources, Inc. and agrees to reimburse Roan Resources, Inc. and the attorney-
in-fact on demand for any legal or other expenses reasonably incurred in
connection with investigating or defending against any such loss, claim, damage,
liability or action.

This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Form ID, Form 3, Form 4, Form 5, Form
144, Schedule 13D and Schedule 13G (including amendments thereto) with respect
to the undersigned's holdings of and transactions in securities issued by Roan
Resources, Inc., unless earlier revoked by the undersigned in a signed writing
delivered to the attorney-in-fact.  This Power of Attorney does not revoke any
other power of attorney that the undersigned has previously granted.

                            [Signature Page Follows]


  IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
                     executed as of the date written below.


Dated: October 30, 2018
                                        /s/ Andrew Taylor
                                        ----------------------------------------
                                        Andrew Taylor
                                        Director