X0609 4 2026-06-17 0 0001679268 MAMMOTH ENERGY SERVICES, INC. TUSK 0001048462 WEXFORD CAPITAL LP false 777 SOUTH FLAGLER DRIVE SUITE 602 EAST WEST PALM BEACH FL 33401-6122 1 1 1 0 Chief Business Officer 0001472112 Wexford GP LLC false C/O WEXFORD CAPITAL LP 777 SOUTH FLAGLER DRIVE, SUITE 602 EAST WEST PALM BEACH CT 33401 1 1 1 0 Chief Business Officer 0001001391 DAVIDSON CHARLES E false C/O WEXFORD CAPITAL LP 777 SOUTH FLAGLER DRIVE, SUITE 602 WEST PALM BEACH FL 33401 1 1 1 0 Chief Business Officer 0001048485 JACOBS JOSEPH false C/O WEXFORD CAPITAL LP 777 SOUTH FLAGLER DRIVE, SUITE 602 EAST WEST PALM BEACH FL 33401 1 1 1 0 Chief Business Officer 0 Common Stock 2026-06-17 4 J 0 1072896 0 A 1451034 D Common Stock 2026-06-17 4 J 0 6354667 0 A 6601215 I See footnotes Common Stock 2026-06-17 4 P 0 4019574 2.6043 A 10620789 I See footnotes Represents an in-kind distribution from MEH SUB LLC ("MEH SUB"), an entity managed by Wexford Capital LP ("Wexford Capital"), as payment of fees and expenses owed to Wexford Capital related to its performance of investment management services. Represents an in-kind distribution from MEH SUB that does not involve (i) a purchase or a sale of securities or (ii) any additional consideration. Represents the common stock of the Issuer held in the aggregate by Wexford Spectrum Trading Limited ("WST"), Wexford Catalyst Trading Limited ("WCT") and Wexford Focused Trading Limited ("WFT", and together with WST and WCT, the "Wexford Entities"). Wexford Capital may, by reason of its status as (i) sub-advisor of each of WST and WCT and (ii) investment manager of WFT be deemed to own beneficially the securities held by the Wexford Entities. Wexford GP LLC ("Wexford GP") may, as the General Partner of Wexford Capital, be deemed to own beneficially the securities held by the Wexford Entities. Each of Charles E. Davidson ("Davidson") and Joseph M. Jacobs ("Jacobs", and together with the Wexford Entities, Wexford Capital, Wexford GP and Davidson, the "Reporting Persons") may, by reason of his status as a controlling person of Wexford GP, be deemed to own beneficially the securities held by the Wexford Entities. Each of Wexford Capital, Wexford GP, Davidson and Jacobs share the power to vote and to dispose of the securities held by the Wexford Entities. Each of Wexford Capital, Wexford GP, Davidson and Jacobs disclaim beneficial ownership of the securities held by the Wexford Entities and this report shall not be deemed as an admission that they are the beneficial owners of such securities, except to the extent of any pecuniary interests therein. The Reporting Persons may be deemed to be a director and officer of the Issuer by virtue of Paul Jacobi, an employee of Wexford Capital, serving as a director and officer of the Issuer. Wexford Capital LP, By: Wexford GP LLC, its general partner, By: Mark E. Ahern, Vice President and Assistant Secretary 2026-06-22 Wexford GP LLC, By: Mark E. Ahern, Vice President and Assistant Secretary 2026-06-22 Charles E. Davidson 2026-06-22 Joseph M. Jacobs 2026-06-22