Exhibit 24

                    LIMITED POWER OF ATTORNEY FOR ROBERT DAY
                   BENEFICIAL OWNERSHIP REPORTING OBLIGATIONS

Know all by these presents, that the undersigned hereby makes, constitutes and
appoints Peter Carlton, acting individually, as the undersigned's true and
lawful attorney-in-fact, with full power and authority as hereinafter described
on behalf of and in the name, place and stead of the undersigned to

        (1) prepare, execute, acknowledge, deliver and file Schedules 13G, 13D,
            Forms 3, 4, and 5 (including any amendments thereto), including
            applications for Form ID, and any documents necessary to facilitate
            the filing of beneficial ownership reports, with respect to the
            securities of Liberty Oilfield Services Inc. (the "Company"), with
            the United States Securities and Exchange Commission, any national
            securities exchanges and the Company, as considered necessary or
            advisable under Sections 13(d) and 16(a) of the Securities Exchange
            Act of 1934 and the rules and regulations promulgated thereunder, as
            amended from time to time (the "Exchange Act");

        (2) seek or obtain, as the undersigned's representative and on the
            undersigned's behalf, information on transactions in the Company's
            securities from any third party, including brokers, employee benefit
            plan administrators and trustees, and the undersigned hereby
            authorizes any such person to release any such information to the
            undersigned and approves and ratifies any such release of
            information; and

        (3) perform any and all other acts which in the discretion of the
            attorney-in-fact are necessary or desirable for and on behalf of the
            undersigned in connection with the foregoing.

        The undersigned acknowledges that:

        (1) this Limited Power of Attorney authorizes, but does not require, the
            attorney-in-fact to act in his discretion on information provided to
            the attorney-in-fact without independent verification of such
            information;

        (2) any documents prepared and/or executed by any the attorney-in-fact
            on behalf of the undersigned pursuant to this Limited Power of
            Attorney will be in such form and will contain such information and
            disclosure as the attorney-in-fact, in his or her discretion, deems
            necessary or desirable;

        (3) neither the Company nor the attorney-in-fact assumes: (i) any
            liability for the undersigned's responsibility to comply with the
            requirements of the Exchange Act, (ii) any liability of the
            undersigned for any failure to comply with such requirements, or
            (iii) any obligation or liability of the undersigned for profit
            disgorgement under Sections 13(d) and 16(b) of the Exchange Act; and

        (4) this Limited Power of Attorney does not relieve the undersigned from
            responsibility for compliance with the undersigned's obligations
            under the Exchange Act, including without limitation the reporting
            requirements under Sections 13(d) and 16 of the Exchange Act.

        The undersigned hereby gives and grants each of the foregoing attorney-
        in-fact full power and authority to do and perform all and every act and
        thing whatsoever requisite, necessary or appropriate to be done in and
        about the foregoing matters as fully to all intents and purposes as the
        undersigned might or could do if present, hereby ratifying all that the
        attorney-in-fact of, for and on behalf of the undersigned, shall
        lawfully do or cause to be done by virtue of this Limited Power of
        Attorney.

        This Limited Power of Attorney shall remain in full force and effect
        until revoked by the undersigned in a signed writing delivered to the
        attorney-in-fact.


      IN WITNESS WHEREOF, the undersigned has caused this Limited Power of
Attorney to be executed as of this 10th day of January, 2018.


Signature

/s/ Robert A. Day
--------------------------------
Robert A. Day