Exhibit 99
Joint Filer Information
Each of the following joint filers has designated Crestview Partners III GP, L.P. as the “Designated Filer” for purposes of the attached Form 4:
| 1. | Crestview III USWS TE, LLC c/o Crestview Partners 590 Madison Avenue, 42nd Floor New York, NY 10022
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| 2. | Crestview III USWS, L.P. c/o Crestview Partners 590 Madison Avenue, 42nd Floor New York, NY 10022
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| 3. | Adam J. Klein c/o Crestview Advisors 590 Madison Avenue, 42ndFloor New York, NY 10022
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Date of Event Requiring Statement: December 31, 2020
Issuer Name and Ticker or Trading Symbol: U.S. Well Services, Inc. [USWS]
Crestview III USWS TE, LLC
| By: | /s/ Ross A. Oliver |
| Name: Ross A. Oliver | |
| Title: General Counsel |
Crestview III USWS, L.P.
By: Crestview III USWS GenPar, LLC
| By: | /s/ Ross A. Oliver |
| Name: Ross A. Oliver | |
| Title: General Counsel |
Adam J. Klein
| By: | /s/ Ross A. Oliver, as Attorney-in-Fact |
Date: January 4, 2021