Sec Form 4 Filing - Crestview Partners III GP, L.P. @ U.S. WELL SERVICES, INC. - 2021-09-17

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Crestview Partners III GP, L.P. 2. Issuer Name and Ticker or Trading Symbol U.S. WELL SERVICES, INC. [ USWS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O CRESTVIEW PARTNERS, 590 MADISON AVENUE, 42ND FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 09/17/2021 (Street) NEW YORK, NY10022 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A common stock 09/17/2021 M 48,912,429 ( 1 ) A 69,287,429 I See footnote ( 3 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Series B Redeemable Convertible Preferred Stock ( 1 ) ( 1 ) 09/17/2021 M 11,500 ( 1 ) ( 2 ) Class A Common Stock ( 1 ) ( 1 ) 0 I See footnote ( 3 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Crestview Partners III GP, L.P. C/O CRESTVIEW PARTNERS 590 MADISON AVENUE, 42ND FLOOR NEW YORK, NY10022 X X Crestview III USWS TE, LLC C/O CRESTVIEW PARTNERS 590 MADISON AVENUE, 42ND FLOOR NEW YORK, NY10022 X X Crestview III USWS, L.P. C/O CRESTVIEW PARTNERS 590 MADISON AVENUE, 42ND FLOOR NEW YORK, NY10022 X X Klein Adam J C/O CRESTVIEW PARTNERS 590 MADISON AVENUE, 42ND FLOOR NEW YORK, NY10022 X Signatures By: Crestview Partners III GP, L.P., By: Crestview, L.L.C., its general partner, By: /s/ Ross A. Oliver, General Counsel 09/21/2021 Signature of Reporting Person Date By: Crestview III USWS TE, LLC, By: /s/ Ross A. Oliver, General Counsel 09/21/2021 Signature of Reporting Person Date By: Crestview III USWS, L.P., By: Crestview III USWS GenPar, LLC, By: /s/ Ross A. Oliver, General Counsel 09/21/2021 Signature of Reporting Person Date By: Adam J. Klein, By: Ross A. Oliver, as Attorney-in-Fact 09/21/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Reflects the conversion of 11,500 shares of Series B Redeemable Convertible Preferred Stock of the Issuer, par value $0.0001 per share ("Series B Preferred Shares") held by Crestview III USWS, L.P. and Crestview III USWS TE, LLC (the "Crestview Entities") into shares of Class A Common Stock of the Issuer, par value $0.0001 per share ("Class A Shares") at a conversion price of $0.308 per share in accordance with the Series B Certificate of Designations. ( 2 )The Series B Preferred Shares have no expiration date. ( 3 )Crestview Partners III GP, L.P. may be deemed to have beneficial ownership of the securities held by the Crestview Entities. Crestview Partners III GP, L.P. exercises voting and dispositive power over the securities held by the Crestview Entities. Decisions by Crestview Partners III GP, L.P. to vote or dispose of such securities require the approval of a majority of the members of its investment committee and the chairman of the investment committee. Adam J. Klein is a member of the Issuer's board of directors. Mr. Klein is a Partner of Crestview, L.L.C. (which is the general partner of Crestview Partners III GP, L.P.) and Crestview Advisors, L.L.C. (which provides investment advisory and management services to the Crestview Entities and certain affiliates). Each Reporting Person disclaims beneficial ownership of the reported securities except to the extent of its or his pecuniary interest therein.

Remarks: Exhibit 99--Joint Filer Information

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