X0306 4 2022-04-30 0 0001670349 U.S. WELL SERVICES, INC. USWS 0001754320 Broussard Joel 1360 POST OAK BOULEVARD, SUITE 1800 HOUSTON TX 77056 1 0 0 1 Chairman of the Board Restricted Stock Unit 2022-04-30 4 A 0 1142514 0.00 A Class A Common Stock 1142514 1301533 D Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock. Represents a grant of Restricted Stock Units on April 30, 2022 (the "Grant Date"), of which (i) one-half will vest six months from the Grant Date and (ii) one-half will vest eighteen months from the Grant Date. The right to receive shares of Class A common stock, par value $0.0001 ("Common Stock") in settlement of the award is conditioned upon the Issuer receiving stockholder approval, and in the event such stockholder approval is not received, and the Issuer lacks sufficient shares of Common Stock under the U.S. Well Services, Inc. 2018 Amended & Restated Stock Incentive Plan to satisfy the award in full, the award will be solely settled in cash and no Common Stock will be issued. /s/ Erin C. Simonson, Attorney-in-Fact 2022-05-03