144 0001034323 XXXXXXXX LIVE 0001679268 MAMMOTH ENERGY SERVICES, INC. 001-37917 14201 CALIBER DRIVE SUITE 300 OKLAHOMA CITY OK 73134 405-608-6007 SMITH ARTHUR L Director Common Sanford C. Bernstein & Co., LLC

501 Commerce Street Nashville TN 37203

102178 231000.00 48130000 08/12/2025 Nasdaq Common 12/13/2021 Director Compensation Mammoth Energy Services, Inc. N 25545 08/12/2025 Cash Common 06/02/2022 Director Compensation Mammoth Energy Services, Inc. N 25544 08/12/2025 Cash Common 06/12/2023 Director Compensation Mammoth Energy Services, Inc. N 25544 08/12/2025 Cash Common 06/10/2024 Director Compensation Mammoth Energy Services, Inc. N 25544 08/12/2025 Cash Y Sanford C. Bernstein & Co., LLC as filing agent on behalf of ARTHUR L SMITH 08/12/2025 Michael Jones, as Assistant Secretary of Sanford C. Bernstein & Co., LLC