 OKLAHOMA CITY, March 17, 2021 GLOBE NEWSWIRE -- Mammoth Energy Services, Inc. Mammoth or the Company NASDAQ:TUSK today announced that it has posted to its website additional information related to its work in Puerto Rico. The Federal Emergency Management Agency FEMA, in a memorandum dated April 22, 2019, that was recently obtained by Mammoth, concluded that the work performed by Cobra Acquisitions LLC Cobra for the Puerto Rico Electric Power Authority PREPA was awarded in compliance with the emergency procurement provision of the Commonwealth of Puerto Rico and that the contract rates were reasonable. 