POWER OF ATTORNEY

        The undersigned (the "Reporting Person") hereby constitutes and appoints
Cynthia M. Durrett, Gregory A. Lanham and Kyle S. Ramachandran, and each of
them, as the Reporting Person'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 Reporting Person, in the Reporting
Person's capacity as an officer or director of Solaris Oilfield Infrastructure,
Inc. (the "Company"), Forms 3, 4 and 5 in accordance with Section 16(a) of the
Securities Exchange Act of 1934 and the rules thereunder;

        (3) do and perform any and all acts for and on behalf of the Reporting
Person which may be necessary or desirable to complete and execute any such Form
3, 4 or 5, complete and execute any amendment or amendments thereto, and timely
file such form with the SEC and any stock exchange or similar authority; and

        (4) 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 Reporting Person, it being
understood that the documents executed by such attorney-in-fact on behalf of the
Reporting Person pursuant to this Power of Attorney shall be in such form and
shall contain such terms and conditions as such attorney-in-fact may approve in
such attorney-in-fact's discretion.

        The Reporting Person grants to 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 Reporting Person
might or could do if personally present, with full power of substitution or
revocation, hereby ratifying and confirming all that 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 Reporting Person acknowledges that the
foregoing attorney-in-fact, in serving in such capacity at the request of the
Reporting Person, is not assuming, nor is the Company assuming, any of the
Reporting Person's responsibilities to comply with Section 16 of the Securities
Exchange Act of 1934.

        This Power of Attorney shall remain in effect until the Reporting Person
is no longer required to file Forms 3, 4 and 5 with respect to the Reporting
Person's holdings of, and transactions in securities issued by, the Company,
unless earlier revoked by the Reporting Person in a signed writing delivered to
the attorney-in-fact.

        IN WITNESS WHEREOF, the Reporting Person has caused this Power of
Attorney to be executed on April 28, 2017.


                                        /s/ F. Gardner Parker
                                        ----------------------------------------
                                        Name: F. Gardner Parker