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 Ann G. Fox, Clinton Roeder and
Theodore R. Moore, or any of them acting without the others, 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 Nine Energy Service, 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 Nine Energy Service,
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 Nine Energy Service, 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 Nine Energy
Service, Inc. and agrees to reimburse Nine Energy Service, 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 Nine
Energy Service, 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.

/s/ Darryl Keith Willis
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Signature


Darryl Keith Willis
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Type or Print Name


August 7, 2018
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Date