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

The undersigned hereby constitutes and appoints Dasha K. Hodge with full power
of substitution, as the undersigned's true and lawful attorney-in-fact to:

  1. Prepare, execute in the undersigned's name and on the undersigned's
     behalf, and submit to the U.S. Securities and Exchange Commission (the
     "SEC") a Form ID, including amendments thereto, and any other documents
     necessary or appropriate to obtain codes and passwords enabling the
     undersigned to make electronic filings with the SEC of reports required by
     Section 16(a) of the Securities Exchange Act of 1934 or any rule or
     regulation of the SEC;

  2. Execute for and on behalf of the undersigned (a) any 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"), (b)
     Form 144, (c) Schedule 13D and Schedule 13G (including amendments thereto)
     in accordance with Sections 13(d) and 13(g) of the Exchange Act, and (d)
     any joint filing agreement in connection with the preceding clauses (a)-
     (c);

  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 SEC 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 herein granted, 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.

This Power of Attorney shall remain in full force and effect until the
undersigned revokes this Power of Attorney 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.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 28th day of February, 2019.


                    Name: Scott Pittman
                          ----------------

                    Title: Chief Financial Officer and Senior Vice President

                    Signature: /s/ Scott Pittman
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