U.S. Well Services Holdings, LLC is the holding entity associated with U.S. Well Services, Inc. (Nasdaq: USWS), an oilfield services company that entered the public markets through a merger with Matlin & Partners Acquisition Corporation, a blank-check vehicle sponsored by Matlin & Partners that completed its IPO in 2017. The de-SPAC transaction closed in 2018, bringing USWS public within the pressure pumping and hydraulic fracturing segment of the broader energy services sector. The Form 8-K filed in June 2022 under CIK 0001670349 constitutes a material disclosure from the post-merger operating entity during an active period for the company. Sign up on SpacDesk for complete filing histories, sponsor profiles, and deal-level analytics on this and thousands of other SPAC transactions.