U.S. Well Services Holdings, LLC is the parent holding entity for U.S. Well Services, an energy services company specializing in hydraulic fracturing that entered the public markets in November 2018 through a business combination with Matlin & Partners Acquisition Corporation, a SPAC sponsored by MatlinPatterson Global Advisers. Operating in the oilfield services sector, the company provided electric-powered and conventional hydraulic fracturing services to oil and gas operators across major U.S. shale basins. The 8-K filed on July 22, 2022 reflects material corporate activity during a period in which the company was subject to an acquisition by ProFrac Holdings. Sign up on SpacDesk for full filing histories, sponsor profiles, and de-SPAC deal analytics.