X0306 4 2016-10-19 0 0001679268 Mammoth Energy Services, Inc. TUSK 0001617605 Gaydosik Aaron 14313 NORTH MAY AVENUE, SUITE 100 OKLAHOMA CITY OK 73134 1 0 0 0 Common Stock 2016-10-19 4 A 0 6667 0.00 A 6667 D These securities are restricted stock units that were granted under the issuer's 2016 Equity Incentive Plan. 2,223 of these restricted stock units vested on October 19, 2016, and the remaining 4,444 restricted stock units will vest in two equal annual installments beginning on October 19, 2017. Each restricted stock unit represents a contingent right to receive one share of common stock, par value $0.01 per share, of the issuer. These restricted stock units have been assigned to Gulfport Energy Corporation under the terms of Mr. Gaydosik's employment with Gulfport Energy Corporation. As a result, Mr. Gaydosik disclaims any pecuniary interest in these restricted stock units. Exhibit 24 - Power of Attorney /s/ Mark Layton as attorney-in-fact for Aaron Gaydosik 2016-10-21