Exhibit 10.1

PURCHASE AGREEMENT

among

U.S. WELL SERVICES, INC.

and

THE PURCHASERS PARTY HERETO

TABLE OF CONTENTS

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PURCHASE AGREEMENT

This PURCHASE AGREEMENT, dated as of May 23, 2019 (this “ Agreement ”), is entered into by and among U.S. Well Services, Inc., a Delaware corporation (“ USWS ”), and each of the purchasers set forth in Schedule A hereto (the “ Purchasers ”).

RECITALS :

WHEREAS, USWS desires to sell the Purchased Securities (as defined below) and the Purchasers desire to purchase from USWS the Purchased Securities, in accordance with the provisions of this Agreement; and

WHEREAS, USWS has agreed to provide the Purchasers with certain registration rights with respect to the shares of Class A Common Stock underlying the Purchased Securities acquired pursuant hereto.

NOW THEREFORE, in consideration of the mutual covenants and agreements set forth herein and for good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, USWS and each of the Purchasers, severally and not jointly, hereby agree as follows:

ARTICLE I

DEFINITIONS

Section 1.01 Definitions . As used in this Agreement, the following terms have the meanings indicated:

“ Additional Purchased Securities ” shall have the meaning specified on Schedule B hereto.

“ Affiliate ” means, with respect to a specified Person, any other Person, directly or indirectly controlling, controlled by or under direct or indirect common control with such specified Person. For purposes of this definition, “control” (including, with correlative meanings, “controlling,” “controlled by” and “under common control with”) means the power to direct or cause the direction of the management and policies of such Person, directly or indirectly, whether through the ownership of voting securities, by contract or otherwise; provided however, that USWS and the Purchasers shall not be considered Affiliates for purposes of this Agreement.

“ Agreement ” has the meaning set forth in the introductory paragraph of this Agreement.

“ Allocated Purchase Price ” means with respect to each Purchaser, the dollar amount set forth opposite such Purchaser’s name under the heading “Allocated Purchase Price” on Schedule A hereto.

“ Basic Documents ” means, collectively, this Agreement, the Certificate of Designations, the Warrant Agreement and the Registration Rights Agreement.

“ Business Day ” means any day other than a Saturday, Sunday, any federal legal holiday or day on which banking institutions in the State of New York or State of Texas are authorized or required by Law or other governmental action to close.

“ Certificate of Designations ” shall have the meaning specified in Section  2.04(b)(iv) .

“ Class  A Common Stock ” means the Class A Common Stock, par value $0.0001 per share, of USWS.

“ Class  B Common Stock ” means the Class B Common Stock, par value $0.0001 per share, of USWS.

“ Closing ” shall have the meaning specified in Section  2.03(b) .

“ Closing Date ” shall have the meaning specified in Section  2.03(c) .

“Code” means the Internal Revenue Code of 1986, as amended.

“ Confidentiality Agreements ” means (a) the letter agreement, dated April 11, 2019, by and among USWS and Crestview Advisors, L.L.C., (b) the letter agreement, dated January 31, 2019, by and among Piper Jaffray & Co., on behalf of USWS, and Angelo Gordon & Co., L.P., (c) the letter agreement, dated February 11, 2019, by and among USWS and Geode Diversified Fund, as amended on May 10, 2019, (d) the letter agreement, dated April 30, 2019, by and among USWS and Dorchester Private Equity Management, LLC, and (e) the letter agreement, dated May 3, 2019, by and among USWS and VRESSA Holding Inc.

“ Conversion Shares ” means the Class A Common Stock issuable upon conversion of the Series A Preferred Stock and the Class A Common Stock issuable upon exercise of the Warrants.

“ Credit Facilities ” shall have the meaning specified in Section 3.02(d) .

“ Current Warrants ” shall have the meaning specified in Section  3.02(b) .

“ Delaware LLC Act ” shall have the meaning specified in Section  3.02(e) .

“ Delaware LP Act ” shall have the meaning specified in Section  3.02(e) .

“ Delaware Corporations Act ” means the General Corporation Law of the State of Delaware.

“ Exchange Act ” means the Securities Exchange Act of 1934, as amended from time to time, and the rules and regulations of the SEC promulgated thereunder.

“ Follow-on Closing ” shall have the meaning specified in Section  2.03(b) .

“ GAAP ” means generally accepted accounting principles in the United States of America.

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“ Governmental Authority ” means, with respect to a particular Person, any country, state, county, city and political subdivision in which such Person or such Person’s Property is located or which exercises valid jurisdiction over any such Person or such Person’s Property, and any court, agency, department, commission, board, bureau or instrumentality of any of them and any monetary authority which exercises valid jurisdiction over any such Person or such Person’s Property. Unless otherwise specified, all references to Governmental Authority herein with respect to USWS means a Governmental Authority having jurisdiction over USWS, its Subsidiaries or any of their respective Properties.

“ Indemnified Party ” shall have the meaning specified in Section  5.03 .

“ Indemnifying Party ” shall have the meaning specified in Section  5.03 .

“ Initial Closing ” shall have the meaning specified in Section  2.03(a) .

“Initial Purchased Securities ” shall have the meaning specified on Schedule A hereto.

“ Law ” means any federal, state, local or foreign order, writ, injunction, judgment, settlement, award, decree, statute, law (including common law), rule or regulation.

“ Lien ” means any mortgage, claim, encumbrance, pledge, lien (statutory or otherwise), security agreement, conditional sale or trust receipt or a lease, consignment or bailment, preference or priority, assessment, deed of trust, charge, easement, servitude or other encumbrance upon or with respect to any property of any kind.

“ LLC Units ” shall have the meaning specified in Section  3.02(d) .

“ Material Adverse Effect ” means a material adverse effect on the business, properties, financial condition, stockholders’ equity or results of operations of USWS, the validity of the Purchased Securities or the legal authority or ability of USWS to perform in all material respects its obligations under this Agreement.

“ NASDAQ ” means the NASDAQ Capital Market.

“ Outside Date ” shall have the meaning specified in Section  6.01(c) .

“ Permitted Transfer ” means a Transfer of all or any portion of Purchased Securities to any Affiliate, any limited partner of a Purchaser or any of its Affiliates, or any managed account, investment fund, or other vehicle that is managed or sponsored by the manager or sponsor of a Purchaser, but only if the transferee, to the extent such transferee becomes a direct holder of any Purchased Securities, agrees in writing prior to such Transfer for the express benefit of the Company (with a copy thereof to be furnished to the Company) to be bound by the transferor’s obligations hereunder with respect to the applicable Purchased Securities.

“ Person ” means any individual, corporation, company, voluntary association, partnership, joint venture, trust, limited liability company, unincorporated organization, government or any agency, instrumentality or political subdivision thereof or any other form of entity.

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“ Property ” means any interest in any kind of property or asset, whether real, personal or mixed, or tangible or intangible.

“ Purchased Preferred Stock ” means, with respect to each Purchaser, the number of shares of Series A Preferred Stock as set forth opposite such Purchaser’s name on Schedule A hereto.

“ Purchased Securities ” means the Purchased Preferred Stock and the Purchased Warrants, collectively.

“ Purchased Warrants ” means, with respect to each Purchaser, the number of Warrants as set forth opposite such Purchaser’s name on Schedule B hereto.

“ Purchaser Lock-Up Period ” shall have the meaning specified in Section  4.06 .

“ Purchaser Related Parties ” shall have the meaning specified in Section  5.01 .

“ Purchasers ” has the meaning set forth in the introductory paragraph of this Agreement.

“ Redemption Shares ” means the Class A Common Stock issuable upon redemption of the Series A Preferred Stock.

“ Registration Rights Agreement ” means the Registration Rights Agreement, to be entered into on the date hereof, between USWS and the Purchasers in substantially the form attached hereto as Exhibit B .

“ Representatives ” means, with respect to a specified Person, the officers, directors, managers, employees, agents, counsel, accountants, investment bankers and other representatives of such Person.

“ SEC ” means the United States Securities and Exchange Commission.

“ Securities Act ” means the Securities Act of 1933, as amended from time to time, and the rules and regulations of the SEC promulgated thereunder.

“ Series A Preferred Stock ” means the Series A Redeemable Convertible Preferred Stock having the terms set forth in the Certificate of Designations.

“ Short Sales ” means, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and forward sale contracts, options, puts, calls, short sales, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements, and sales and other transactions through non-U.S. broker dealers or foreign regulated brokers.

“ Subsidiary ” means, as to any Person, any corporation or other entity of which: (i) such Person or a Subsidiary of such Person is a general partner or manager; (ii) at least a majority of the outstanding equity interest having by the terms thereof ordinary voting power to elect a majority of the board of directors or similar governing body of such corporation or other entity

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(irrespective of whether or not at the time any equity interest of any other class or classes of such corporation or other entity shall have or might have voting power by reason of the happening of any contingency) is at the time directly or indirectly owned or controlled by such Person or one or more of its Subsidiaries; or (iii) any corporation or other entity as to which such Person consolidates for accounting purposes.

“ Transfer ” shall have the meaning specified in Section  4.07 .

“ Underlying Preferred Shares ” shall have the meaning specified in Section  3.02(g) .

“ Underlying Shares ” shall have the meaning specified in Section  3.02(g) .

“ USWS ” has the meaning set forth in the introductory paragraph of this Agreement.

“ USWS Bylaws ” shall have the meaning specified in Section  2.05(e) .

“ USWS Financial Statements ” shall have the meaning specified in Section  3.03(a) .

“ USWS Holdings ” shall have the meaning specified in Section  3.02(d) .

“ USWS Holdings LLC Agreement ” means that certain Amended and Restated Limited Liability Company Agreement of USWS Holdings, LLC, dated as of November 9, 2018.

“ USWS Related Parties ” shall have the meaning specified in Section  5.02 .

“ USWS SEC Documents ” shall have the meaning specified in Section  3.03(a) .

“ Warrants ” shall mean the warrants having the terms set forth in the Warrant Agreement, as evidenced by certificates substantially in the form attached as Exhibit A to the Warrant Agreement.

“ Warrant Agreement ” shall have the meaning specified in Section  2.04(b)(v) .

Section 1.02 Accounting Procedures and Interpretation . Unless otherwise specified herein, all accounting terms used herein shall be interpreted, all determinations with respect to accounting matters hereunder shall be made, and all USWS Financial Statements and certificates and reports as to financial matters required to be furnished to the Purchasers hereunder shall be prepared, in accordance with GAAP applied on a consistent basis during the periods involved (except as may be indicated in the notes thereto or, in the case of unaudited financial statements, as permitted by Form 10-Q promulgated by the SEC) and in compliance as to form in all material respects with applicable accounting requirements and with the published rules and regulations of the SEC with respect thereto.

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ARTICLE II

AGREEMENT TO SELL AND PURCHASE

Section 2.01 Authorization of Sale of the Purchased Securities . USWS has authorized the issuance and sale to the Purchasers of the Purchased Securities on the terms and subject to the conditions set forth in this Agreement.

Section 2.02 Sale and Purchase . Subject to the terms and conditions hereof, USWS hereby agrees to issue and sell to each Purchaser, free and clear of any and all Liens (other than the transfer restrictions under applicable federal and state securities laws and other than those arising under the Certificates of Designations or the Delaware Corporations Act), and each Purchaser, severally and not jointly, hereby agrees to purchase from USWS, such number of Purchased Securities on such dates as set forth on Schedule A , and each Purchaser agrees to pay USWS its Allocated Purchase Price with respect to such Purchased Securities. For the avoidance of doubt, the Allocated Purchase Price shall be the consideration for all Purchased Securities to be acquired by the applicable Purchaser over the course of all the Closings (as defined below).

Section 2.03 Closings .

(a) Initial Closing . Subject to the terms and conditions hereof, the consummation of the purchase and sale of the Initial Purchased Securities hereunder (the “ Initial Closing ”) shall take place at 8:00 a.m. Central Time on May 24, 2019 at the offices of Gibson, Dunn & Crutcher LLP, 811 Main Street, Suite 3000, Houston, Texas, or such other date, time or location as agreed by the parties.

(b) Follow-on Closings . Subject to the terms and conditions hereof, the consummation of the purchase and sale of the Additional Purchased Securities hereunder shall take place at 8:00 a.m. Central Time on each of the dates set forth on Schedule B (each, a “ Follow-on Closing ” and together with the Initial Closing, the “ Closings ” and, each, a “ Closing ”) at the offices of Gibson, Dunn & Crutcher LLP, 811 Main Street, Suite 3000, Houston, Texas, or such other dates, times or locations as agreed by the parties. Notwithstanding anything to the contrary herein, if at any time following the Initial Closing there are no outstanding shares of Series A Preferred Stock, then there shall be no further Follow-on Closings, USWS shall have no obligation to issue any additional Warrants pursuant to this Agreement and the Purchasers shall have no right to receive any additional Warrants pursuant to this Agreement.

(c) General . The date of any Closing shall be the “ Closing Date ” with respect to such Closing. The parties agree that any Closing may occur via delivery of facsimiles or portable document format (PDF) documents.

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Section 2.04 Conditions to Each Closing .

(a) Mutual Conditions . The respective obligations of each party to consummate the purchase and issuance and sale of the applicable Purchased Securities to be purchased and issued at each Closing shall be subject to the satisfaction on or prior to such Closing Date of each of the following conditions (any or all of which may be waived by a particular party on behalf of itself in writing, in whole or in part, to the extent permitted by applicable Law):

(i) no statute, rule, order, decree or regulation shall have been enacted or promulgated, and no action shall have been taken, by any Governmental Authority which temporarily, preliminarily or permanently restrains, precludes, enjoins or otherwise prohibits the consummation of the transactions contemplated hereby or makes the transactions contemplated hereby illegal; and

(ii) there shall not be pending any suit, action or proceeding by any Governmental Authority seeking to restrain, preclude, enjoin or prohibit the transactions contemplated by this Agreement.

(b) Conditions of the Purchasers’ Obligations at Each Closing . The respective obligations of each Purchaser to consummate the purchase of the applicable Purchased Securities to be purchased at each Closing shall be subject to the satisfaction (or waiver by such Purchaser) on or prior to such Closing Date of each of the following conditions:

(i) the representations and warranties of USWS contained in this Agreement that are qualified by materiality or Material Adverse Effect shall be true and correct as of such Closing Date as if made on and as of such Closing Date and all other representations and warranties shall be true and correct in all material respects as of such Closing Date as if made on and as of such Closing Date (except that representations and warranties made as of a specific date shall be required to be true and correct in all material respects as of such date only);

(ii) USWS and its Subsidiaries shall have performed and complied, in all material respects, with all of the covenants and agreements required to be performed and complied with by it hereunder on or prior to such Closing Date;

(iii) since the date of this Agreement, no Material Adverse Effect shall have occurred and be continuing;

(iv) with respect to the Initial Closing, USWS shall have adopted and filed with the Secretary of State of the State of Delaware the Certificate of Designations in the form attached hereto as Exhibit A-1 (the “ Certificate of Designations ”), and the Certificate of Designations shall have become effective as an amendment to USWS’s Second Amended and Restated Certificate of Incorporation, as amended (“ USWS Charter ”);

(v) with respect to the Initial Closing, USWS shall have executed the Warrant Agreement in the form attached hereto as Exhibit A-2 , and with respect to each Follow-on Closing, the Warrant Agreement shall remain effective;

(vi) USWS shall have delivered, or caused to be delivered, to the Purchasers, USWS’s closing deliveries described in Section  2.05 ; and

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(vii) with respect to the Initial Closing, USWS shall have filed with the NASDAQ a “Notification Form: Listing of Additional Shares” and supporting documentation, if required, related to the Underlying Shares, the NASDAQ shall have not raised any objection with respect thereto and USWS shall have furnished to each of the Purchasers evidence of the filing thereof.

(c) Conditions of USWS’s Obligations at Each Closing . The obligation of USWS to consummate the sale of the Purchased Securities to be sold at each Closing shall be subject to the satisfaction (or waiver by USWS) on or prior to such applicable Closing Date of each of the following conditions:

(i) the representations and warranties of each Purchaser contained in this Agreement that are qualified by materiality shall be true and correct as of such Closing Date as if made on and as of such Closing Date and all other representations and warranties shall be true and correct in all material respects as of such Closing Date as if made on and as of such Closing Date (except that representations and warranties made as of a specific date shall be required to be true and correct in all material respects as of such date only);

(ii) each Purchaser shall have performed and complied, in all material respects, with all of the covenants and agreements required to be performed and complied with by such Purchaser on or prior to such Closing Date;

(iii) with respect to the Initial Closing, each Purchaser shall have delivered, or caused to be delivered, to USWS such Purchaser’s closing deliveries as described in Section  2.06 of this Agreement; and

(iv) with respect to any Follow-on Closing, there are outstanding shares of Series A Preferred Stock.

Section 2.05 USWS Deliveries . At each Closing, USWS shall deliver or cause to be delivered:

(a) with respect to the Initial Closing, evidence of the Purchased Preferred Stock credited to book-entry accounts maintained by the transfer agent of the Company, to be followed, when commercially reasonable, by a certificate or certificates representing the Purchased Preferred Stock to be purchased and sold at such Closing and meeting the requirements of the Certificate of Designations, free and clear of any Liens, other than the transfer restrictions under applicable federal and state securities laws and other than those arising under the Certificate of Designations or the Delaware Corporations Act, registered in such names as each Purchaser shall have designated;

(b) with respect to the Initial Closing, cross-receipts, dated as of the Closing Date, executed by USWS and delivered to each of the Purchasers certifying as to USWS’s receipt of payments of the Allocated Purchase Price;

(c) an opinion addressed to the Purchasers from Gibson, Dunn & Crutcher LLP, counsel for USWS, substantially in the form attached hereto as Exhibit  C ;

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(d) an officer’s certificate, signed by (x) the Chief Executive Officer and (y) the Chief Financial Officer of USWS, in their respective capacities as such, dated as of such Closing Date, stating that the conditions in Sections 2.04(a) , 2.04(b)(i) , 2.04(b)(ii) , 2.04(b)(iii) , 2.04(b)(iv) , 2.04(b)(v) and 2.04(b)(vii) have been fully satisfied;

(e) with respect to the Initial Closing, a certificate of the Secretary or Assistant Secretary of USWS, certifying as to and attaching (i) board resolutions authorizing the execution and delivery of the Basic Documents and the consummation of the transactions contemplated thereby, including the issuance of the Purchased Securities, (ii) the USWS Charter and all amendments thereto (including the Certificate of Designation), and USWS’s Amended and Restated Bylaws, as amended (the “ USWS Bylaws ”), (iii) the Certificate of Designations being in full force and effect and (iv) the incumbency of the officers authorized to execute the Basic Documents on behalf of USWS, setting forth the name and title and bearing the signature of each of such officers;

(f) with respect to the Initial Closing, copies of the USWS Charter and all amendments thereto certified by the Secretary of State of the State of Delaware as of a recent date;

(g) with respect to the Initial Closing, a certificate of the Secretary of State of the State of Delaware, dated as of a recent date, that USWS is in good standing in its jurisdiction of incorporation;

(h) with respect to the Initial Closing, the Registration Rights Agreement in substantially the form attached hereto as Exhibit B , which shall have been duly executed by USWS;

(i) with respect to the Initial Closing, the Warrant Agreement, in substantially the form attached hereto as Exhibit A-2, which shall be duly executed by USWS and the Warrant Agent;

(j) with respect to the Initial Closing, evidence of the Warrants issued at the Initial Closing credited to book-entry accounts maintained by the transfer agent of the Company, to be followed, when commercially reasonable, by a certificate or certificates representing such Warrants, in substantially the form attached as Exhibit A to the Warrant Agreement, duly executed by USWS and the Warrant Agent;

(k) with respect to each Closing following the Initial Closing, a certificate or certificates representing the Warrants issued at such Closing, in substantially the form attached as Exhibit A to the Warrant Agreement, duly executed by USWS and the Warrant Agent; and

(l) with respect to the Initial Closing, evidence of the issuance of Equity Securities (as defined in the USWS Holdings LLC Agreement) by USWS Holdings (including a copy of the First Amendment to the USWS Holdings LLC Agreement) as required by Section 3.5(b) of the USWS Holdings LLC Agreement.

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Section 2.06 Purchasers’ Deliveries .

(a) With respect to the Initial Closing, (a) each of the Purchasers shall pay to USWS its Allocated Purchase Price as of such Closing Date, such payments to be made by wire transfers of immediately available funds on such Closing Date to an account designated by USWS at least two (2) Business Days (or such shorter period of time as shall be agreeable by all parties hereto) prior to the such Closing Date and (b) the Purchasers shall deliver or cause to be delivered the Registration Rights Agreement in substantially the form attached hereto as Exhibit B , which shall have been duly executed by each Purchaser party thereto.

(b) With respect to the Initial Closing, each Purchaser shall deliver or cause to be delivered an officer’s certificate from each Purchaser, dated as of the date of the Closing, stating that the conditions applicable to such Purchaser in Sections 2.04(c)(i) and 2.04(c)(ii) have been fully satisfied.

Section 2.07 Independent Nature of the Purchasers’ Obligations and Rights . The obligations of each Purchaser under any Basic Document are several and not joint with the obligations of any other Purchaser, and no Purchaser shall be responsible in any way for the performance of the obligations of any other Purchaser under any Basic Document. The failure or waiver of performance under any Basic Document of any Purchaser by USWS does not excuse performance by any other Purchaser and the waiver of performance of USWS by any Purchaser does not excuse performance by USWS with respect to each other Purchaser. Nothing contained herein or in any other Basic Document, and no action taken by any Purchaser pursuant thereto, shall be deemed to constitute the Purchasers as a partnership, an association, a joint venture or any other kind of entity, or create a presumption that the Purchasers are in any way acting in concert or as a group with respect to such obligations or the transactions contemplated by the Basic Documents. Each Purchaser shall be entitled to independently protect and enforce its rights, including without limitation, the rights arising out of this Agreement or out of the other Basic Documents, and it shall not be necessary for any other Purchaser to be joined as an additional party in any proceeding for such purpose.

Section 2.08 Further Assurances . From time to time after the date hereof, without further consideration, USWS and the Purchasers shall use their commercially reasonable efforts to take, or cause to be taken, all actions necessary or appropriate to consummate the transactions contemplated by this Agreement.

Section 2.09 Use of Proceeds . USWS shall use the proceeds from the sale of the Purchased Securities (net of the expenses related thereto) solely to fund growth capital expenditures related to the expansion of USWS’s electric powered hydraulic fracturing fleet and general corporate purposes, including the payment of fees and expenses.

Section 2.10 Series A Preferred Stock . An illustrative and non-binding example setting forth the application of the provisions of the Certificate of Designations is attached hereto as Schedule 2.10 .

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ARTICLE III

REPRESENTATIONS AND WARRANTIES AND

COVENANTS RELATED TO USWS

USWS represents and warrants to and covenants with each Purchaser as follows:

Section 3.01 Corporate Existence . USWS (a) is a corporation duly incorporated, validly existing and in good standing under the laws of the State of Delaware; and (b) has all requisite power and authority, and has all governmental licenses, authorizations, consents and approvals necessary, to own, lease, use and operate its Properties and carry on its business as its business is now being conducted, except where the failure to obtain such licenses, authorizations, consents and approvals would not be reasonably likely to have a Material Adverse Effect. Each of USWS’s Subsidiaries has been duly incorporated or formed, as the case may be, and is validly existing and in good standing under the laws of the state or other jurisdiction of its incorporation or organization, as the case may be, and has all requisite power and authority, and has all governmental licenses, authorizations, consents and approvals necessary, to own, lease, use or operate its respective Properties and carry on its business as now being conducted, except where the failure to obtain such licenses, authorizations, consents and approvals would not be reasonably likely to have a Material Adverse Effect. None of USWS nor any of its Subsidiaries are in default in the performance, observance or fulfillment of any provision of, in the case of USWS, the USWS Charter or the USWS Bylaws or, in the case of any Subsidiary of USWS, their respective certificate of incorporation, certification of formation, bylaws, limited liability company agreement or other similar organizational documents. Each of USWS and its Subsidiaries is duly qualified or licensed and in good standing as a foreign corporation, limited partnership or limited liability company, as applicable, and is authorized to do business in each jurisdiction in which the ownership or leasing of its respective Properties or the character of its respective operations makes such qualification necessary, except where the failure to obtain such qualification, license, authorization or good standing would not be reasonably likely to have a Material Adverse Effect.

Section 3.02 Capitalization and Valid Issuance of Purchased Securities .

(a) As of the date of this Agreement, the total number of shares of all classes of capital stock, each with a par value of $0.0001 per share, which USWS is authorized to issue is 440,000,000 shares, consisting of (i) 430,000,000 shares of common stock, including (A) 400,000,000 shares of Class A Common Stock, (B) 20,000,000 shares of Class B Common Stock, and (C) 10,000,000 shares of Class F Common Stock (the “ Class  F Common Stock ”), and (ii) 10,000,000 shares of preferred stock (the “ Preferred Stock ”).

(b) As of the date of this Agreement, prior to the issuance and sale of the Initial Purchased Securities in the Initial Closing as contemplated hereby, the issued and outstanding corporate stock of USWS consists of 54,440,374 shares of Class A Common Stock issued and outstanding (including 2,743,023 shares of unvested restricted stock), 9,994,635 warrants to purchase shares of Class A Common Stock and 15,500,000 sponsor warrants to purchase a half share of Class A Common Stock (such currently outstanding warrants, the “ Current Warrants ”), 13,937,332 shares of Class B Common Stock issued and outstanding, no shares of Class F Common Stock issued and outstanding and no shares of Preferred Stock issued and outstanding.

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As of the date of this Agreement, all outstanding shares of Class A Common Stock and Class B Common Stock and all outstanding Current Warrants have been duly authorized and validly issued in accordance with the USWS Charter and USWS Bylaws and are fully paid and nonassessable.

(c) As of the date of this Agreement, other than the USWS 2018 Long Term Incentive Plan, USWS has no equity compensation plans that contemplate the issuance of equity interests of USWS (or securities convertible into or exchangeable for equity interests of USWS). No indebtedness having the right to vote (or convertible into or exchangeable for securities having the right to vote) on any matters on which USWS stockholders may vote are issued or outstanding. Except for the Current Warrants and as contemplated by the USWS Charter and the USWS Holdings LLC Agreement (as defined below), including the Class B Common Stock and the LLC Units (as defined below), there are no outstanding or authorized (i) options, warrants, preemptive rights, subscriptions, calls, rights of first refusal, or other rights, convertible or exchangeable securities or written agreements obligating USWS or any of its Subsidiaries to issue, transfer or sell any equity interest in, USWS or securities convertible into or exchangeable for such equity interests, (ii) obligations of USWS or any of its Subsidiaries to repurchase, redeem or otherwise acquire any equity interests of USWS or any such securities or agreements listed in clause (i) of this sentence or (iii) proxy agreements or voting trusts or similar agreements to which USWS or any of its Subsidiaries is a party with respect to the voting of the equity interests of USWS. Except as set forth in the USWS SEC Documents or as contemplated by this Agreement, USWS has not entered into any agreements regarding the registration of any equity securities of USWS under the Securities Act.

(d) As of the date of this Agreement, except as disclosed in the USWS SEC Documents, neither USWS nor any of its Subsidiaries owns any shares of capital stock or other securities of, or interest in, any other Person, or is obligated to make any capital contribution to or any other investment in any other Person, other than with respect to USWS’s obligations under the USWS Holdings LLC Agreement. As of the date of this Agreement, USWS owns a sole managing member interest in USWS Holdings, LLC, a Delaware limited liability company (“ USWS Holdings ”), and 54,401,699 USWS Holdings Units (“ LLC Units ”); such sole managing member interest and LLC Units are duly authorized and validly issued in accordance with the USWS Holdings LLC Agreement and are fully paid (to the extent required under the USWS Holdings LLC Agreement) and non-assessable (except in the case except as such nonassessability may be affected by matters described in Sections 18-303, 18-607 and 18-804 of the Delaware Limited Liability Company Act (the “ Delaware LLC Act ”)) and such sole managing member interest and LLC Units are owned by USWS free and clear of all Liens (except for such restrictions as may exist under applicable Law and except for such Liens as may be imposed under (x) the Senior Secured Term Loan Credit Agreement, dated May 7, 2019, by and among USWS, USWS Holdings, U.S. Well Services, LLC, the guarantors and initial lenders named therein, and CLMG Corp. and (y) the ABL Credit Agreement dated as of May 7, 2019 among USWS, USWS Holdings, U.S. Well Services, LLC, the lenders party thereto, Bank of America, N.A., as administrative agent, and the other parties thereto (the facilities described in clauses (x) and (y) above, collectively, the “ Credit Facilities ”), or the organizational documents of such Subsidiaries, as applicable). As of the date of this Agreement, USWS Holdings owns all of the shares of capital stock or other securities of, or interest in, each of its Subsidiaries, which are listed on Exhibit 21 to USWS’s most recent Form 10-K filing with the SEC.

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(e) As of the date of this Agreement, (i) all of the issued and outstanding equity interests of each of the Subsidiaries of USWS Holdings are owned, directly or indirectly, by USWS Holdings free and clear of any Liens (except for such restrictions as may exist under applicable Law and except for such Liens as may be imposed under the Credit Facilities or the organizational documents of such Subsidiaries, as applicable), and all such ownership interests have been duly authorized, validly issued and are fully paid (to the extent required in the organizational documents of such Subsidiaries, as applicable) and non-assessable (except as such nonassessability may be affected by matters described in Sections 17-303, 17-607 and 17-804 of the Delaware Revised Uniform Limited Partnership Act (the “ Delaware LP Act ”) and Sections 18-303, 18-607 and 18-804 of the Delaware LLC Act) and (ii) except as disclosed in the USWS SEC Documents, neither USWS nor any of its Subsidiaries owns any shares of capital stock or other securities of, or interest in, any other Person, or is obligated to make any capital contribution to or any other investment in any other Person.

(f) The Purchased Securities being purchased by each of the Purchasers hereunder will be duly authorized by USWS pursuant to the USWS Charter, the Certificate of Designations (with respect to the Series A Preferred Stock) and the Warrant Agreement (with respect to the Warrants) prior to the Initial Closing and, when issued and delivered by USWS to such Purchaser against payment therefor in accordance with the terms of this Agreement and the terms of the Purchased Securities, will be validly issued, fully paid and non-assessable and will be free of preemptive rights or any Liens and restrictions on transfer, other than (i) restrictions on transfer under the Certificate of Designations (with respect to the Series A Preferred Stock), the Warrant Agreement (with respect to the Warrants) or this Agreement and under applicable state and federal securities laws and (ii) such Liens as are created by such Purchaser or its Affiliates.

(g) 13,668,703 shares of Class A Common Stock, being equal to 19.99% of the total shares of Class A Common Stock and Class B Common Stock outstanding and which are issuable upon conversion or redemption of the Series A Preferred Stock (the “ Underlying Preferred Shares ”) and 3,422,221 shares of Class A Common Stock, which are issuable upon exercise of the Warrants (together with the Underlying Preferred Shares, the “ Underlying Shares ”) have been duly authorized and reserved pursuant to the USWS Charter, the Certificate of Designations (with respect to the Series A Preferred Stock) and the Warrant Agreement (with respect to the Warrants) and, upon issuance and delivery by USWS to such Purchaser in accordance with this Agreement and the terms of the Purchased Securities, will be duly authorized, validly issued, fully paid and non-assessable and will be free of any preemptive rights or any Liens and restrictions on transfer, other than (i) restrictions on transfer under the Certificate of Designations (with respect to the Series A Preferred Stock), the Warrant Agreement (with respect to the Warrants) or this Agreement and under applicable state and federal securities laws and (ii) such Liens as are created by such Purchaser or its Affiliates.

Section 3.03 USWS SEC Documents .

(a) Since December 31, 2018, USWS has filed with the SEC all forms, reports, schedules and statements required to be filed by it under the Exchange Act or the Securities Act (all such documents collectively the “ USWS SEC Documents ”). The USWS SEC Documents, including, without limitation, any audited or unaudited financial statements and any notes thereto

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or schedules included therein (the “ USWS Financial Statements ”), at the time filed (except to the extent corrected by a subsequently filed USWS SEC Document filed prior to the date hereof) (i) did not include any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein (in the light of the circumstances under which they were made) not misleading, (ii) complied in all material respects with the applicable requirements of the Exchange Act and the Securities Act, as applicable, and (iii) complied as to form in all material respects with applicable accounting requirements and with the published rules and regulations of the SEC with respect thereto.

(b) The historical financial statements (including the related notes and supporting schedules) of USWS and its Subsidiaries included or incorporated by reference in the USWS SEC Documents comply as to form in all material respects with the requirements of Regulation S-X under the Securities Act and present fairly in all material respects the financial condition, results of operations and cash flows of the entities purported to be shown thereby, at the dates and for the periods indicated and have been prepared in conformity with GAAP applied on a consistent basis throughout the periods involved, except to the extent described therein.

(c) KPMG LLP is an independent, registered public accounting firm with respect to USWS and has not resigned or been dismissed as independent public accountants of USWS as a result of or in connection with any disagreement with USWS on a matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure. Except as disclosed in the USWS SEC Documents, since the date of the most recent balance sheet of USWS reviewed or audited by KPMG LLP, USWS has not been advised of (i) any significant deficiencies or material weakness in the design or operation of internal controls that are reasonably likely to adversely affect USWS’s ability to record, process, summarize and report financial information and (ii) any fraud, whether or not material, that involves management or other employees who have a significant role in USWS’s internal controls over financial reporting.

Section 3.04 No Material Adverse Change . Except as set forth in or contemplated by the USWS SEC Documents, since the date of USWS’s most recent Form 10-K filing with the SEC, USWS and its Subsidiaries have conducted their respective businesses in the ordinary course, consistent with past practice, and there has been no (a) change, event, occurrence, effect, fact, circumstance or condition that has had or would be reasonably likely to have a Material Adverse Effect, (b) acquisition or disposition of any material asset by USWS or any of its Subsidiaries or any contract or arrangement therefor, other than acquisitions or dispositions for fair value in the ordinary course of business, acquisitions or dispositions as disclosed in the USWS SEC Documents, or (c) material change in USWS’s accounting principles, practices or methods.

Section 3.05 Litigation . Except as set forth in the USWS SEC Documents, there is no action, suit, or proceeding pending or, to USWS’s knowledge, threatened against or affecting any of USWS or its Subsidiaries or any of their respective officers, directors, properties or assets, which (a) questions the validity of this Agreement or the Basic Documents or the right of USWS to enter into this Agreement or the Basic Documents or the right to consummate the transactions contemplated by the Basic Documents or thereby or (b) individually or in the aggregate, would be reasonably likely to result in a Material Adverse Effect.

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Section 3.06 No Conflicts; Compliance with Laws . The execution, delivery and performance by USWS of the Basic Documents and compliance by USWS with the terms and provisions hereof and thereof, and the issuance and sale by USWS of the Purchased Securities, does not and will not (a) assuming the accuracy of the representations and warranties of the Purchasers contained herein and their compliance with the covenants contained herein, violate any provision of any Law or permit having applicability to USWS or any of its Subsidiaries or any of their respective Properties, (b) conflict with or result in a violation or breach of any provision of the USWS Charter, the USWS Bylaws or other organizational documents of USWS or any organizational documents of any of USWS’s Subsidiaries, (c) require any consent, approval or notice under or result in a violation or breach of or constitute (with or without due notice or lapse of time or both) a default (or give rise to any right of termination, cancellation or acceleration) under any contract, agreement, instrument, obligation, note, bond, mortgage, license, loan or credit agreement to which USWS or any of its Subsidiaries is a party or by which USWS or any of its Subsidiaries or any of their respective Properties may be bound, or (d) result in or require the creation or imposition of any Lien upon or with respect to any of the Properties now owned or hereafter acquired by USWS or any of its Subsidiaries, except in the case of clause (a), (c) and (d) where any such conflict, violation, default, breach, termination, cancellation, failure to receive consent, approval or notice, or acceleration with respect to the foregoing provisions of this Section 3.06 would not be, individually or in the aggregate, reasonably likely to result in a Material Adverse Effect.

Section 3.07 Authority, Enforceability . USWS has all necessary corporate power and authority to execute, deliver and perform its obligations under the Basic Documents, and the execution, delivery and performance by USWS of the Basic Documents has been duly authorized by all necessary action on the part of USWS. All corporate action required to be taken by the USWS for the authorization, issuance, sale and delivery of the Purchased Securities, the execution, delivery and performance of the Basic Documents by the USWS, and the consummation of the transactions contemplated by the Basic Documents shall have been validly taken. This Agreement has been duly and validly authorized, executed and delivered by USWS and constitutes and, when executed and delivered by USWS the other Basic Documents will be duly and validly authorized, executed and delivered by USWS and will constitute the legal, valid and binding obligations of USWS, enforceable in accordance with their terms, except as such enforceability may be limited by bankruptcy, insolvency, fraudulent transfer and similar laws affecting creditors’ rights generally or by general principles of equity and except as the rights to indemnification may be limited by applicable law. No approval from the holders of USWS’s Class A Common Stock, Class B Common Stock or Current Warrants is required in connection with USWS’s issuance and sale of the Purchased Securities to the Purchasers.

Section 3.08 Approvals . Except for the approvals required by the SEC in connection with any registration statement filed under the Registration Rights Agreement and for approvals that have already been obtained, no authorization, consent, approval, waiver, license, qualification or written exemption from, nor any filing, declaration, qualification or registration with, any Governmental Authority or any other Person is required in connection with the execution, delivery or performance by USWS of any of the Basic Documents, except for (i) the filing of the Certificate of Designations in the office of the Secretary of State of Delaware or the filing with the SEC of a Current Report on Form 8-K, and (ii) where the failure to receive such authorization, consent, approval, waiver, license, qualification or written exemption from, or to make such filing, declaration, qualification or registration would not, individually or in the aggregate, be reasonably likely to have a Material Adverse Effect.

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Section 3.09 Investment Company Status . USWS is not and, immediately after the sale of the Purchased Securities and the application of the net proceeds from such sale will not be, required to register as an “investment company” or a company controlled by an “investment company” within the meaning of the Investment Company Act of 1940, as amended.

Section 3.10 Certain Fees . No fees or commissions are or will be payable by USWS to brokers, finders or investment bankers with respect to the sale of any of the Purchased Securities or the consummation of the transactions contemplated by this Agreement. USWS agrees that it will indemnify and hold harmless each Purchaser from and against any and all claims, demands, or liabilities for broker’s, finder’s, placement, or other similar fees or commissions incurred by USWS or alleged to have been incurred by USWS in connection with the sale of the Purchased Securities or the consummation of the transactions contemplated by this Agreement.

Section 3.11 Books and Records; Sarbanes-Oxley Compliance . USWS makes and keeps accurate books and records. There is and has been no failure on the part of USWS or any of USWS’s directors or officers, in their capacities as such, to comply in all material respects with the provisions of the Sarbanes-Oxley Act of 2002 and the rules and regulations promulgated in connection therewith.

Section 3.12 Listing and Maintenance Requirements . The Class A Common Stock is listed on the NASDAQ, and USWS has not received any notice of delisting that is in effect as of the date of this Agreement. USWS will use its commercially reasonable efforts to effect and maintain the listing of the Underlying Shares on the NASDAQ (or such other U.S. national securities exchange).

Section 3.13 Insurance . USWS and its Subsidiaries are insured by insurers of recognized financial responsibility against such losses and risks and in such amounts as are prudent and customary in the businesses in which they are engaged. USWS does not have any reason to believe that it or any Subsidiary will not be able to renew its existing insurance coverage as and when such coverage expires or to obtain similar coverage from similar insurers as may be necessary to continue its business.

Section 3.14 Pre-Closing Covenants of USWS . From and after the date of this Agreement and until the Initial Closing hereunder, USWS will use commercially reasonable efforts to conduct its business in the ordinary course of business, preserve intact its existence and business organization and goodwill and present business relationships with all material customers, suppliers, licensors, distributors and others having significant business relationships with USWS, to the extent such relationships are beneficial to the USWS and its business.

Section 3.15 Disclosure of Transactions . On or before 5:30 p.m., New York City time, on or before the fourth Business Day following the date of this Agreement, USWS shall issue a press release or file a Current Report on Form 8-K describing the terms and conditions of the transactions contemplated by this Agreement and the Basic Documents.

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ARTICLE IV

REPRESENTATIONS AND WARRANTIES AND

COVENANTS OF THE PURCHASERS

Each Purchaser, severally and not jointly, hereby represents and warrants and covenants to USWS as follows:

Section 4.01 Existence . Such Purchaser is duly organized and validly existing and in good standing under the laws of its state of formation, with all necessary power and authority to own properties and to conduct its business as currently conducted.

Section 4.02 Authorization, Enforceability . Such Purchaser has all necessary legal power and authority to enter into, deliver and perform its obligations under this Agreement and the Basic Documents to which such Purchaser is or will be a party. The execution, delivery and performance by such Purchaser of this Agreement and the Basic Documents to which such Purchaser is or will be a party and the consummation by it of the transactions contemplated hereby and thereby have been duly and validly authorized by all necessary legal action, and no further consent or authorization of such Purchaser is required. This Agreement and the Basic Documents to which such Purchaser is or will be a party have been duly executed and delivered by such Purchaser and constitute or, when executed by such Purchaser, will constitute legal, valid and binding obligations of such Purchaser; provided that , the enforceability thereof may be limited by bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium and similar laws relating to or affecting creditors’ rights generally and by general principles of equity and except as the rights to indemnification may be limited by applicable law (regardless of whether such enforceability is considered in a proceeding in equity or at law).

Section 4.03 No Breach . The execution, delivery and performance of this Agreement and the Basic Documents by such Purchaser and the consummation by such Purchaser of the transactions contemplated hereby or thereby will not (a) conflict with or result in a breach or violation of any of the terms or provisions of, or constitute a default under, any material agreement to which such Purchaser is a party or by which such Purchaser is bound or to which any of the property or assets of such Purchaser is subject, (b) conflict with or result in any violation of the provisions of the organizational documents of such Purchaser, or (c) violate any statute, order, rule or regulation of any court or governmental agency or body having jurisdiction over such Purchaser or the property or assets of such Purchaser, except in the case of clauses (a) and (c), for such conflicts, breaches, violations or defaults as would not have a material adverse effect on the ability to consummate the transactions contemplated by this Agreement and the Basic Documents.

Section 4.04 Certain Fees . No fees or commissions are or will be payable by such Purchaser to brokers, finders or investment bankers with respect to the purchase of any of the Purchased Securities or the consummation of the transactions contemplated by this Agreement. Such Purchaser agrees, severally and not jointly with any other Purchaser, that it will indemnify and hold harmless USWS from and against any and all claims, demands or liabilities for broker’s, finder’s, placement, or other similar fees or commissions incurred by such Purchaser or alleged to have been incurred by such Purchaser in connection with the purchase of the Purchased Securities or the consummation of the transactions contemplated by this Agreement.

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Section 4.05 Unregistered Securities .

(a) Accredited Investor Status; Sophisticated Purchasers . Such Purchaser is an “accredited investor” within the meaning of Rule 501 under the Securities Act and is able to bear the risk of its investment in Purchased Securities, the Conversion Shares and the Redemption Shares. Such Purchaser has such knowledge and experience in financial and business matters that it is capable of evaluating the merits and risks of the purchase of the Purchased Securities, the Conversion Shares and the Redemption Shares.

(b) Information . Such Purchaser and its Representatives have been furnished with all materials relating to the business, finances and operations of USWS that have been requested and materials relating to the offer and sale of the Purchased Securities that have been requested by such Purchaser and its Representatives. Such Purchaser and its Representatives have been afforded the opportunity to ask questions of USWS. Neither such inquiries nor any other due diligence investigations conducted at any time by any Purchaser and Representatives shall modify, amend or affect such Purchaser’s right (i) to rely on USWS’s representations and warranties contained in Article III above or (ii) to indemnification or any other remedy based on, or with respect to the accuracy or inaccuracy of, or compliance with, the representations, warranties, covenants and agreements in this Agreement, or any Basic Document. Such Purchaser understands that the purchase of the Purchased Securities involves a high degree of risk. Such Purchaser has sought such accounting, legal and tax advice as it has considered necessary to make an informed investment decision with respect to its acquisition of the Purchased Securities.

(c) Cooperation . Such Purchaser shall cooperate reasonably with USWS to provide any information necessary for any applicable securities filings required to be made by USWS.

(d) Legends . Such Purchaser understands that the Purchased Preferred Stock will bear a restrictive legend substantially in the form as set forth in the Certificate of Designations and the Purchased Warrants will bear a restrictive legend substantially in the form as set forth in the Warrant Agreement.

(e) Purchase Representation . Such Purchaser is purchasing the Purchased Securities for its own account and not with a view to distribution in violation of any securities laws. Such Purchaser has been advised and understands that none of the Purchased Securities, the Conversion Shares or the Redemption Shares have been registered under the Securities Act or under the “blue sky” laws of any jurisdiction and may be resold only if registered pursuant to the provisions of the Securities Act (or if eligible, pursuant to the provisions of Rule 144 promulgated under the Securities Act or pursuant to another available exemption from the registration requirements of the Securities Act). Such Purchaser has been advised and understands that USWS, in issuing the Purchased Securities, is relying upon, among other things, the representations and warranties of such Purchaser contained in this Article IV in concluding that such issuance is a “private offering” and is exempt from the registration provisions of the Securities Act.

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(f) Rule 144 . Such Purchaser understands that there is no public trading market for the Purchased Securities, that none is expected to develop and that the Purchased Securities must be held indefinitely unless and until the Purchased Securities, the Conversion Shares or the Redemption Shares, as applicable, are registered under the Securities Act or an exemption from registration is available. Such Purchaser has been advised of and is aware of the provisions of Rule 144 promulgated under the Securities Act.

(g) Reliance by USWS . Such Purchaser understands that the Purchased Securities are being offered and sold in reliance on a transactional exemption from the registration requirements of federal and state securities laws and that USWS is relying upon the truth and accuracy of the representations, warranties, agreements, acknowledgments and understandings of such Purchaser set forth herein in order to determine the applicability of such exemptions and the suitability of such Purchaser to acquire the Purchased Securities, the Conversion Shares and the Redemption Shares.

Section 4.06 Short Selling . Such Purchaser has not engaged in any Short Sales involving Class A Common Stock owned by it between the time it first began discussions with USWS about the transaction contemplated by this Agreement and the date of execution of this Agreement.

Section 4.07 Lock-Up Agreement . Without the prior written consent of USWS, except in the case of a Permitted Transfer or as otherwise specifically provided in this Agreement, each Purchaser will not, during the period commencing on the date hereof and ending sixty (60) days after the date of the Initial Closing (such period, the “ Purchaser Lock-Up Period ”) (1) offer, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend, or otherwise transfer or dispose of, directly or indirectly, any Class A Common Stock or any of its Purchased Securities or (2) enter into any swap or other transaction or arrangement that transfers or that is designed to, or that might reasonably be expected to, result in the transfer to another, in whole or in part, any of the economic consequences of ownership of its Purchased Securities, whether any such transaction described in clause (1) or (2) above (any such transaction described in clauses (1) and (2), a “ Transfer ”) is to be settled by delivery of Class A Common Stock or such other securities, in cash or otherwise.

ARTICLE V

INDEMNIFICATION, COSTS AND EXPENSES

Section 5.01 Indemnification by USWS . USWS agrees to indemnify each Purchaser and its Representatives (collectively, “ Purchaser Related Parties ”) from, and hold each of them harmless against, any and all losses, actions, suits, proceedings (including any investigations, litigation or inquiries), demands and causes of action, and, in connection therewith, and promptly upon demand, pay or reimburse each of them for all reasonable costs, losses, liabilities, damages or expenses of any kind or nature whatsoever (including the reasonable fees and disbursements of counsel and all other reasonable expenses incurred in connection with investigating, defending or preparing to defend any such matter that may be incurred by them or asserted against or involve

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any of them), whether or not involving a third party claim, as a result of, arising out of, or in any way related to (i) the failure of any of the representations or warranties made by USWS contained herein to be true and correct in all material respects as of the date hereof (except with respect to any provisions including the word “material,” “Material Adverse Effect” or words of similar import, with respect to which such representations and warranties must have been true and correct) or (ii) the material breach of any covenants of USWS contained herein, provided that , in the case of the immediately preceding clause (i), such claim for indemnification is made prior to the expiration of such representation or warranty; provided , however , that for purposes of determining when an indemnification claim has been made, the date upon which a Purchaser Related Party shall have given notice (stating in reasonable detail the basis of the claim for indemnification) to USWS shall constitute the date upon which such claim has been made.

Section 5.02 Indemnification by the Purchasers . Each Purchaser agrees, severally and not jointly, to indemnify USWS and its respective Representatives (collectively, “ USWS Related Parties ”) from, and hold each of them harmless against, any and all losses, actions, suits, proceedings (including any investigations, litigation or inquiries), demands and causes of action, and, in connection therewith, and promptly upon demand, pay or reimburse each of them for all reasonable costs, losses, liabilities, damages or expenses of any kind or nature whatsoever (including the reasonable fees and disbursements of counsel and all other reasonable expenses incurred in connection with investigating, defending or preparing to defend any such matter that may be incurred by them or asserted against or involve any of them), whether or not involving a third party claim, as a result of, arising out of, or in any way related to (i) the failure of any of the representations or warranties made by such Purchaser contained herein to be true and correct in all material respects as of the date hereof or (ii) the material breach of any of the covenants of such Purchaser contained herein, provided that , in the case of the immediately preceding clause (i), such claim for indemnification relating to a breach of any representation or warranty is made prior to the expiration of such representation or warranty; provided , however , that for purposes of determining when an indemnification claim has been made, the date upon which a USWS Related Party shall have given notice (stating in reasonable detail the basis of the claim for indemnification) to such Purchaser shall constitute the date upon which such claim has been made; provided , further , that the liability of such Purchaser shall not be greater in amount than such Purchaser’s Allocated Purchase Price.

Section 5.03 Indemnification Procedure . A claim for indemnification for any matter not involving a third party claim may be asserted by notice to the party from whom indemnification is sought; provided , however , that failure to so notify the indemnifying party shall not preclude the indemnified party from any indemnification which it may claim in accordance with this Article V , except as otherwise provided in Sections 5.01 and 5.02 . Promptly after any USWS Related Party or Purchaser Related Party (hereinafter, the “ Indemnified Party ”) has received notice of any indemnifiable claim hereunder, or the commencement of any action, suit or proceeding by a third person, which the Indemnified Party believes in good faith is an indemnifiable claim under this Agreement, the Indemnified Party shall give the indemnitor hereunder (the “ Indemnifying Party ”) written notice of such claim or the commencement of such action, suit or proceeding, but failure to so notify the Indemnifying Party will not relieve the Indemnifying Party from any liability it may have to such Indemnified Party hereunder except to the extent that the Indemnifying Party is materially prejudiced by such failure. Such notice shall state the nature and the basis of such claim

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to the extent then known. The Indemnifying Party shall have the right to defend and settle, at its own expense and by its own counsel, any such matter as long as the Indemnifying Party pursues the same diligently and in good faith. If the Indemnifying Party undertakes to defend or settle such claim, it shall promptly after such determination, and in no event later than five (5) days, notify the Indemnified Party of its intention to do so, and the Indemnified Party shall cooperate with the Indemnifying Party and its counsel in all commercially reasonable respects in the defense thereof and/or the settlement thereof. Such cooperation shall include, but shall not be limited to, furnishing the Indemnifying Party with any books, records and other information reasonably requested by the Indemnifying Party and in the Indemnified Party’s possession or control relevant to the claim. Such cooperation of the Indemnified Party shall be at the cost of the Indemnifying Party. After the Indemnifying Party has notified the Indemnified Party of its intention to undertake to defend or settle any such asserted liability, and for so long as the Indemnifying Party diligently pursues such defense, the Indemnifying Party shall not be liable for any additional legal expenses incurred by the Indemnified Party in connection with any defense or settlement of such asserted liability; provided , however , that the Indemnified Party shall be entitled (i) at its expense, to participate in the defense of such asserted liability and the negotiations of the settlement thereof and (ii) if (A) the Indemnifying Party has, within ten (10) Business Days of when the Indemnified Party provides written notice of a claim, failed (y) to assume the defense or settlement of such claim and employ counsel or (z) to notify the Indemnified Party of such assumption, or (B) if the defendants in any such action include both the Indemnified Party and the Indemnifying Party and counsel to the Indemnified Party shall have concluded that there may be reasonable defenses available to the Indemnified Party that are different from or in addition to those available to the Indemnifying Party or if the interests of the Indemnified Party reasonably may be deemed to conflict with the interests of the Indemnifying Party, then the Indemnified Party shall have the right to select a separate counsel and to assume such legal defense and otherwise to participate in the defense of such action, with the expenses and fees of such separate counsel and other expenses related to such participation to be reimbursed by the Indemnifying Party as incurred. Notwithstanding any other provision of this Agreement, the Indemnifying Party shall not settle any indemnified claim without the consent of the Indemnified Party, unless the settlement thereof imposes no liability or obligation on, and includes a complete release from liability of, and does not contain any admission of wrong doing by, the Indemnified Party.

Section 5.04 Tax Treatment of Indemnification Payments . Any indemnification payments made under this Article V shall be treated for all tax purposes as an adjustment to the relevant Purchaser’s Allocated Purchase Price except as otherwise required by applicable Law.

ARTICLE VI

TERMINATION

Section 6.01 Termination . This Agreement may be terminated at any time:

(a) by mutual written consent of USWS and the Purchasers entitled to purchase a majority of the Purchased Securities as set forth on Schedule A ;

(b) by either USWS or the Purchasers if any court of competent jurisdiction in the United States or other United States Governmental Authority shall have issued a final order, decree or ruling or taken any other final action restraining, enjoining or otherwise prohibiting the transactions contemplated hereby and such order, decree, ruling or other action is or shall have become final and nonappealable;

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(c) by either USWS or any Purchaser if the Initial Closing has not been consummated by June 6, 2019 (the “ Outside Date ”);

(d) by USWS if (i) there shall have been a breach of any representation or warranty on the part of the Purchasers set forth in this Agreement or in any other Basic Document, or if any such representation or warranty of the Purchasers shall have become untrue, in either case such that the conditions set forth in Section 2.04(c) would be incapable of being satisfied by the Outside Date; or (ii) there shall have been a breach in any material respect by the Purchasers of any of their respective covenants or agreements hereunder, and with respect to such clause (i) or (ii) the Purchasers have not cured such breach or inaccuracy within twenty (20) Business Days after receipt of written notice thereof from USWS; provided that USWS is not then in breach of any of its obligations hereunder; and

(e) by any Purchaser if (i) there shall have been a breach of any representation or warranty on the part of USWS set forth in this Agreement or in any other Basic Document, or if any such representation or warranty of USWS shall have become untrue, in either case such that the conditions set forth in Section  2.04(b) would be incapable of being satisfied by the Outside Date; or (ii) there shall have been a breach in any material respect by USWS of its covenants or agreements hereunder, and USWS has not cured such breach or inaccuracy within twenty (20) Business Days after receipt of written notice thereof from the Purchasers; provided that such Purchasers are not then in breach of any of their obligations hereunder.

Section 6.02 Certain Effects of Termination . If this Agreement is terminated by either USWS or the Purchasers as provided in Section  6.01 :

(a) except as set forth in Section  7.03 , this Agreement shall become null and void and have no further force or effect, but the parties shall not be released from any liability arising from or in connection with any breach hereof occurring prior to such termination; and

(b) the Confidentiality Agreements shall remain in effect.

ARTICLE VII

MISCELLANEOUS

Section 7.01 Expenses . USWS hereby covenants and agrees to reimburse the Purchasers for reasonable and documented fees and expenses of one counsel to Crestview III USWS, L.P. and Crestview III USWS TE, LLC and one counsel to AG Energy Funding, LLC; provided that such fees and expenses do not exceed $250,000 and $50,000, respectively. All other costs and expenses, including, without limitation, fees and disbursements of counsel, financial advisors and accountants, incurred in connection with this Agreement and the transactions contemplated hereby shall be paid by the party incurring such costs and expenses, whether or not any Closing shall have occurred.

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Section 7.02 Interpretation . Article, Section, Schedule and Exhibit references in this Agreement are references to the corresponding Article, Section, Schedule or Exhibit to this Agreement, unless otherwise specified. All Exhibits and Schedules to this Agreement are hereby incorporated and made a part hereof as if set forth in full herein and are an integral part of this Agreement. All references to instruments, documents, contracts and agreements are references to such instruments, documents, contracts and agreements as the same may be amended, supplemented and otherwise modified from time to time, unless otherwise specified. The word “including” shall mean “including but not limited to” and shall not be construed to limit any general statement that it follows to the specific or similar items or matters immediately following it. Whenever USWS has an obligation under the Basic Documents, the expense of complying with that obligation shall be an expense of USWS unless otherwise specified. Any reference in this Agreement to $ shall mean U.S. dollars. Whenever any determination, consent or approval is to be made or given by any Purchaser, such action shall be in such Purchaser’s sole discretion, unless otherwise specified in this Agreement. If any provision in the Basic Documents is held to be illegal, invalid, not binding or unenforceable, (i) such provision shall be fully severable and the Basic Documents shall be construed and enforced as if such illegal, invalid, not binding or unenforceable provision had never comprised a part of the Basic Documents, and the remaining provisions shall remain in full force and effect and (ii) the parties hereto shall negotiate in good faith to modify the Basic Documents so as to effect the original intent of the parties as closely as possible in an acceptable manner in order that the transactions contemplated hereby are consummated as originally contemplated to the greatest extent possible. When calculating the period of time before which, within which or following which any act is to be done or step taken pursuant to the Basic Documents, the date that is the reference date in calculating such period shall be excluded. If the last day of such period is a non-Business Day, the period in question shall end on the next succeeding Business Day. Any words imparting the singular number only shall include the plural and vice versa. The words such as “herein,” “hereinafter,” “hereof” and “hereunder” refer to this Agreement as a whole and not merely to a subdivision in which such words appear unless the context otherwise requires. The provision of a Table of Contents, the division of this Agreement into Articles, Sections and other subdivisions and the insertion of headings are for convenience of reference only and shall not affect or be utilized in construing or interpreting this Agreement.

Section 7.03 Survival of Provisions . The representations and warranties set forth in Sections 3.02(e) , 3.02(f) , 3.02(g) , 3.07 , 3.08 , 3.10 , 4.02 , 4.04 and 4.05 hereunder shall survive the execution and delivery of this Agreement indefinitely, and the other representations and warranties set forth herein shall survive for a period of six (6) months following the final Closing Date regardless of any investigation made by or on behalf of USWS or the Purchasers. The covenants made in this Agreement or any other Basic Document shall survive the final Closing and remain operative and in full force and effect regardless of acceptance of any of the Purchased Securities and payment therefor and repayment, conversion or repurchase thereof. Regardless of any purported general termination of this Agreement, the provisions of Article V and all indemnification rights and obligations of USWS and the Purchasers thereunder, Section  6.02 and this Article VII shall remain operative and in full force and effect as between USWS and the Purchasers, unless USWS and the Purchasers execute a writing that expressly (with specific references to the applicable Section or subsection of this Agreement) terminates such rights and obligations as between USWS and the Purchasers.

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Section 7.04 No Waiver; Modifications in Writing .

(a) Delay . No failure or delay on the part of any party in exercising any right, power or remedy hereunder shall operate as a waiver thereof, nor shall any single or partial exercise of any such right, power or remedy preclude any other or further exercise thereof or the exercise of any other right, power or remedy. The remedies provided for herein are cumulative and are not exclusive of any remedies that may be available to a party at law or in equity or otherwise.

(b) Specific Waiver . Except as otherwise provided herein, no amendment, waiver, consent, modification or termination of any provision of this Agreement or any other Basic Document shall be effective unless signed by each of the parties hereto or thereto affected by such amendment, waiver, consent, modification or termination. Any amendment, supplement or modification of or to any provision of this Agreement or any other Basic Document, any waiver of any provision of this Agreement or any other Basic Document and any consent to any departure by USWS from the terms of any provision of this Agreement or any other Basic Document shall be effective only in the specific instance and for the specific purpose for which made or given. Except where notice is specifically required by this Agreement, no notice to or demand on USWS in any case shall entitle USWS to any other or further notice or demand in similar or other circumstances. Any investigation by or on behalf of any party shall not be deemed to constitute a waiver by the party taking such action of compliance with any representation, warranty, covenant or agreement contained herein.

Section 7.05 Binding Effect; Assignment .

(a) Binding Effect . This Agreement shall be binding upon USWS, each Purchaser and their respective successors and permitted assigns. Except as expressly provided in this Agreement, this Agreement shall not be construed so as to confer any right or benefit upon any Person other than the parties to this Agreement and their respective successors and permitted assigns.

(b) Assignment of Purchased Securities . All or any portion of Purchased Securities purchased pursuant to this Agreement may be sold, assigned or pledged by the Purchasers, subject to compliance with applicable securities laws, Sections 4.05(f) and 4.06 hereof and the Registration Rights Agreement, and, except as provided in the Basic Documents, any such assignment shall not affect the rights of the Purchasers hereunder.

(c) Assignment of Rights . Each Purchaser’s rights and obligations hereunder (including the right to seek indemnification) may be transferred or assigned in whole or in part by such Purchaser to any Affiliate of such Purchaser without the consent of USWS or the other parties hereto. Upon any such permitted transfer or assignment, references in this Agreement to the Purchasers (as they apply to the transferor or assignor, as the case may be) shall thereafter be deemed to include a reference to such transferee or assignee of such Purchaser unless the context otherwise requires. Without the written consent of USWS, which consent shall not be unreasonably

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withheld, no portion of the rights and obligations of any Purchaser under this Agreement may be assigned or transferred by such Purchaser or such a transferee of Purchased Securities to a Person that is not an Affiliate of such Purchaser. No portion of the rights and obligations of USWS under this Agreement may be transferred or assigned without the prior written consent of the Purchasers, which consent shall not be unreasonably withheld.

Section 7.06 Non-Disclosure . Notwithstanding anything herein to the contrary, the Confidentiality Agreements shall remain in full force and effect in accordance with their terms regardless of any termination of this Agreement. USWS, its Subsidiaries and any of their respective Representatives shall disclose the identity of, or any other information concerning, any Purchaser or any of their Affiliates only after providing such Purchaser a reasonable opportunity to review and comment on such disclosure (with such comments being incorporated or reflected, to the extent reasonable, in any such disclosure); provided , however , that nothing in this Section  7.06 shall delay any required filing or other disclosure with the SEC, NASDAQ or any Governmental Authority or otherwise hinder USWS, their Subsidiaries or their Representatives’ ability to timely comply with all laws or rules and regulations of the SEC, NASDAQ or other Governmental Authority.

Section 7.07 Communications . All notices and demands provided for hereunder shall be (i) in writing and shall be given by registered or certified mail, return receipt requested, facsimile, air courier guaranteeing overnight delivery or personal delivery, and (ii) via e-mail, to the following addresses:

(a) If to the Purchasers:

At such address indicated on Schedule A attached hereto.

(b) If to USWS:

U.S. Well Services, Inc.

1360 Post Oak Boulevard, Suite 1800

Houston, Texas 77056

Attention: Mark Wolf

Facsimile: (832) 562-3745

E-mail: MWolf@uswellservices.com

with a copy (which shall not constitute notice) to:

Gibson, Dunn & Crutcher LLP

811 Main Street, Suite 3000

Houston, Texas 77002

Attention: Hillary H. Holmes

Facsimile: (346) 718-6902

E-mail: HHolmes@gibsondunn.com

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or to such other address as USWS or such Purchaser may designate in writing. All notices and communications shall be deemed to have been duly given: at the time delivered by hand, if personally delivered; upon actual receipt if sent by certified or registered mail, return receipt requested, or regular mail, if mailed; upon actual receipt if sent by overnight courier copy; when receipt is acknowledged, if sent via facsimile or e-mail; and upon actual receipt when delivered to an air courier guaranteeing overnight delivery.

Section 7.08 Removal of Legend . Each Purchaser may request USWS to remove the legend described in Section  4.05(d) from the certificates evidencing the Purchased Securities by submitting to USWS such certificates, together with an opinion of counsel to the effect that such legend is no longer required under the Securities Act or applicable state laws, as the case may be. USWS shall cooperate with reasonable requests of such Purchaser to effect the removal of such legend.

Section 7.09 Entire Agreement . This Agreement, the other Basic Documents and the other agreements and documents referred to herein are intended by the parties as a final expression of their agreement and intended to be a complete and exclusive statement of the agreement and understanding of the parties hereto in respect of the subject matter contained herein and therein. There are no restrictions, promises, warranties or undertakings, other than those set forth or referred to herein or the other Basic Documents with respect to the rights granted by USWS or any of its Affiliates or the Purchasers or any of their Affiliates set forth herein or therein. This Agreement, the other Basic Documents and the other agreements and documents referred to herein or therein supersede all prior agreements and understandings between the parties with respect to such subject matter.

Section 7.10 Governing Law; Submission to Jurisdiction . This Agreement, and all claims or causes of action (whether in contract or tort) that may be based upon, arise out of or relate to this Agreement or the negotiation, execution or performance of this Agreement (including any claim or cause of action based upon, arising out of or related to any representation or warranty made in or in connection with this Agreement), will be construed in accordance with and governed by the laws of the State of Delaware without regard to principles of conflicts of laws. Any action against any party relating to the foregoing shall be brought in any federal or state court of competent jurisdiction located within the State of Delaware, and the parties hereto hereby irrevocably submit to the non-exclusive jurisdiction of any federal or state court located within the State of Delaware over any such action. The parties hereby irrevocably waive, to the fullest extent permitted by applicable Law, any objection which they may now or hereafter have to the laying of venue of any such dispute brought in such court or any defense of inconvenient forum for the maintenance of such dispute. Each of the parties hereto agrees that a judgment in any such dispute may be enforced in other jurisdictions by suit on the judgment or in any other manner provided by Law.

Section 7.11 Waiver of Jury Trial . EACH OF THE PARTIES TO THIS AGREEMENT EACH HEREBY WAIVES, AND AGREES TO CAUSE ITS AFFILIATES TO WAIVE, TO THE FULLEST EXTENT PERMITTED BY LAW, ANY RIGHT TO TRIAL BY JURY OF ANY CLAIM, DEMAND, ACTION OR CAUSE OF ACTION (i) ARISING UNDER THIS AGREEMENT OR (ii) IN ANY WAY CONNECTED WITH OR RELATED OR INCIDENTAL TO THE DEALINGS OF THE PARTIES HERETO IN RESPECT OF THIS AGREEMENT OR ANY OF THE TRANSACTIONS RELATED HERETO, IN EACH CASE WHETHER NOW

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EXISTING OR HEREAFTER ARISING, AND WHETHER IN CONTRACT, TORT, EQUITY OR OTHERWISE. EACH OF THE PARTIES TO THIS AGREEMENT HEREBY AGREES AND CONSENTS THAT ANY SUCH CLAIM, DEMAND, ACTION OR CAUSE OF ACTION SHALL BE DECIDED BY COURT TRIAL WITHOUT A JURY AND THAT THE PARTIES TO THIS AGREEMENT MAY FILE AN ORIGINAL COUNTERPART OF A COPY OF THIS AGREEMENT WITH ANY COURT AS WRITTEN EVIDENCE OF THE CONSENT OF THE PARTIES HERETO TO THE WAIVER OF THEIR RIGHT TO TRIAL BY JURY.

Section 7.12 Execution in Counterparts . This Agreement may be executed in any number of counterparts and by different parties hereto in separate counterparts, each of which counterparts, when so executed and delivered, shall be deemed to be an original and all of which counterparts, taken together, shall constitute but one and the same Agreement. A signed copy of this Agreement delivered by facsimile, portable document format (PDF) or other means of electronic transmission shall be deemed to have the same legal effect as delivery of an original signed copy of this Agreement; provided, however, that each party hereto shall deliver an original signed copy of this Agreement executed by such party to any other party hereto promptly upon the request of any such other party.

Section 7.13 Recapitalizations, Exchanges, Etc. Affecting the Purchased Securities . The provisions of this Agreement shall apply to the full extent set forth herein with respect to any and all equity interests of USWS or any successor or assign of USWS (whether by merger, consolidation, sale of assets or otherwise) which may be issued in respect of, in exchange for or in substitution of, the Purchased Securities.

Section 7.14 Certain Tax Matters .

(a) USWS shall pay any and all documentary, stamp or similar issue or transfer tax due on (x) the issue of the Purchased Securities and (y) the issue of shares of Class A Common Stock in connection with any exercise of the Purchased Warrants or upon conversion or redemption of the Purchased Preferred Stock.

(b) The Purchasers and USWS agree not to treat the Series A Preferred Stock (based on the terms as set forth in the Certificate of Designations) as “preferred stock” within the meaning of Section 305 of the Code and U.S. Treasury Regulation § 1.305-5 for U.S. federal income tax and withholding tax purposes and shall not take any position inconsistent with such treatment, including on any applicable U.S. federal income or state tax return or in connection with any audit or other proceeding, except as required by a final “determination” within the meaning of Section 1313(a) of the Code. USWS agrees that, provided that each Purchaser delivers to USWS a properly executed IRS Form W-9, or similar form sufficient to cause under current Law USWS (including any paying agent of USWS) to avoid a requirement to withhold on any payments or deemed payments to any such Purchaser, USWS (including any paying agent of USWS) will not withhold on any payments or deemed payments to any such Purchaser.

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IN WITNESS WHEREOF, the parties hereto execute this Agreement, effective as of the date first above written.

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Schedule B

Dates of Follow-On Closings: March  31, 2020, June  30, 2020, September  30, 2020, December  31, 2020, March  31, 2021, June  30, 2021, September  30, 2021, December  31, 2021 and March  31, 2022 :