Exhibit 10.20

FORM OF PROPETRO HOLDING CORP.

NON-EMPLOYEE DIRECTOR COMPENSATION POLICY

Non-employee members of the board of directors (the “Board”) of ProPetro Holding Corp. (the “Company”) shall be eligible to receive cash and equity compensation as set forth in this Non-Employee Director Compensation Policy (this “Policy”).  The cash and equity compensation described in this Policy shall be paid or be made, as applicable, automatically and without further action of the Board, to each member of the Board who is not an employee of the Company or any parent or subsidiary of the Company and who is not an affiliate of Energy Capital Partners (each, a “Non-Employee Director”) who may be eligible to receive such cash or equity compensation, unless such Non-Employee Director declines the receipt of such cash or equity compensation by written notice to the Company.  This Policy shall become effective immediately after the effectiveness of the Company’s initial public offering (the date of such effectiveness, the “Effective Date”) and shall remain in effect until it is revised or rescinded by further action of the Board. This Policy may be amended, modified or terminated by the Board at any time in its sole discretion and if such an initial public offering does not occur on or prior to December 31, 2017 this Policy shall be void ab initio.  The terms and conditions of this Policy shall supersede any prior cash and/or equity compensation arrangements for service as a member of the Board between the Company and any of its Non-Employee Directors and between any subsidiary of the Company and any of its non-employee directors.  No Non-Employee Director shall have any rights hereunder, except with respect to restricted stock units granted pursuant to this Policy.

1.                                    Annual Retainers.  Non-Employee Directors shall be granted the retainers described below.

(a)                               Annual Retainers.  Each Non-Employee Director shall receive an annual retainer of $55,000 for service on the Board.

(b)                              Additional Annual Retainers.  In addition, a Non-Employee Director shall receive the following annual retainers:

(i)                                  Chairperson of the Board.  A Non-Employee Director serving as Chairperson of the Board shall receive an additional annual retainer of $15,000 for such service.

(ii)                              Audit Committee.   A Non-Employee Director serving as Chairperson of the Audit Committee shall receive an additional annual retainer of $15,000 for such service.

(iii)                          Compensation Committee.  A Non-Employee Director serving as Chairperson of the Compensation Committee shall receive an additional annual retainer of $10,000 for such service.

(iv)                          Nominating and Corporate Governance Committee.   A Non-Employee Director serving as Chairperson of the Nominating and Corporate Governance Committee shall receive an additional annual retainer of $10,000 for such service.

(c)                               Payment of Retainers.  The annual retainers described in Sections 1(a) and 1(b) shall be earned on a quarterly basis based on a calendar quarter and shall be paid in arrears by the Company not later than the fifteenth day following the end of each calendar quarter.  In the event a Non-Employee Director does not serve as a Non-Employee Director, or in the applicable positions described in Section 1(b), for an entire calendar quarter, such Non-Employee Director shall receive a prorated portion

of the retainer(s) otherwise payable to such Non-Employee Director for such calendar quarter pursuant to Section 1(b), with such prorated portion determined by multiplying such otherwise payable retainer(s) by a fraction, the numerator of which is the number of days during which the Non-Employee Director serves as a Non-Employee Director or in the applicable positions described in Section 1(b) during the applicable calendar quarter and the denominator of which is the number of days in the applicable calendar quarter.

2.                                    Equity Compensation.  Non-Employee Directors shall be granted the equity awards described below.

(a)                               Annual Awards.  Each Non-Employee Director who (i) serves on the Board as of the date of any annual meeting of the Company’s stockholders (an “Annual Meeting”) after the Effective Date and (ii) will continue to serve as a Non-Employee Director immediately following such Annual Meeting shall be automatically granted, on the date of such Annual Meeting, restricted stock units with respect to a number of shares of the Company’s common stock (the “Common Stock”) that have an aggregate fair value on the date of grant (based on the closing price per share of the Common Stock on the date of such annual meeting (or the last preceding trading day if the date of the annual meeting is not a trading day)) of $100,000.  The awards described in this Section 2(a) shall be referred to as the “Annual Awards.”  For the avoidance of doubt, a Non-Employee Director elected for the first time to the Board at an Annual Meeting shall receive only an Annual Award in connection with such election, and shall not receive any Initial Award on the date of such Annual Meeting as well.

(b)                              Initial Awards.  Except as otherwise determined by the Board, each Non-Employee Director who is initially elected or appointed to the Board after the Effective Date on any date other than the date of an Annual Meeting shall be automatically granted, on the date of such Non-Employee Director’s initial election or appointment (such Non-Employee Director’s “Start Date”), an award of restricted stock units with respect to a number of shares of Common Stock that have an aggregate fair value on such Non-Employee Director’s Start Date (based on the closing price per share of the Common Stock on such Start Date (or the last preceding trading day if such Start Date is not a trading day)) equal to the product of (i) $100,000 and (ii) a fraction, the numerator of which is (x) 365 minus (y) the number of days in the period beginning on the date of the Annual Meeting immediately preceding such Non-Employee Director’s Start Date (or, if no such Annual Meeting has occurred, the Effective Date) and ending on such Non-Employee Director’s Start Date and the denominator of which is 365.  The awards described in this Section 2(b) shall be referred to as “Initial Awards.”  For the avoidance of doubt, no Non-Employee Director shall be granted more than one Initial Award.

(c)                               Termination of Employment of Employee Directors.  Members of the Board who are employees of the Company or any parent or subsidiary of the Company who subsequently terminate their employment with the Company and any parent or subsidiary of the Company and remain on the Board will not receive an Initial Award pursuant to Section 2(b) above, but to the extent that they are otherwise eligible, will be eligible to receive, after termination from service with the Company and any parent or subsidiary of the Company, Annual Awards as described in Section 2(a) above.

(d)                              Vesting of Awards Granted to Non-Employee Directors.  Each Annual Award and Initial Award shall vest and become exercisable on the earlier of (i) the day immediately preceding the date of the first Annual Meeting following the date of grant and (ii) the first anniversary of the date of grant, subject to the Non-Employee Director continuing in service through the applicable vesting date.  No portion of an Annual Award or Initial Award that is unvested or unexercisable at the time of a Non-Employee Director’s termination of service on the Board shall become vested and exercisable thereafter.  All of a Non-Employee Director’s Annual Awards and Initial Awards shall vest in full immediately prior to the occurrence of a Change in Control (as defined in the Equity Plan (as defined below)), to the extent outstanding at such time.

3.                                    General.  The annual retainers and equity awards described herein shall be granted under and shall be subject to the terms and provisions, including the limitations on the numbers of shares and cash that may be granted to Non-Employee Directors each calendar year, of the Company’s 2017 Incentive Award Plan or any other applicable Company equity incentive plan then-maintained by the Company (such plan, as may be amended from time to time, the “Equity Plan”).  The equity awards shall be granted subject to the execution and delivery of award agreements, including attached exhibits, in substantially the forms previously approved by the Board.  All numbers of shares determined hereunder shall be rounded down to the nearest whole share and subject to adjustment as provided in the Equity Plan.

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