144 0001673421 XXXXXXXX LIVE 0000045012 HALLIBURTON CO 001-03492 3000 NORTH SAM HOUSTON PARKWAY EAST 3000 NORTH SAM HOUSTON PARKWAY EAST HOUSTON TX 77032 2818712699 Carre Eric Officer Common Fidelity Brokerage Services LLC

900 Salem St Smithfield RI 02917

141206 3689712.78 878501985 02/11/2025 NYSE Common 12/20/2021 Dividend Reinvestment Issuer N 1 12/20/2021 Cash Common 03/21/2022 Dividend Reinvestment Issuer N 70 03/21/2022 Cash Common 06/17/2022 Dividend Reinvestment Issuer N 1 06/17/2022 Cash Common 09/26/2022 Dividend Reinvestment Issuer N 1 09/26/2022 Cash Common 12/02/2022 Restricted Stock Vesting Issuer N 8203 12/02/2022 Compensation Common 12/19/2022 Dividend Reinvestment Issuer N 56 12/19/2022 Cash Common 01/03/2023 Restricted Stock Vesting Issuer N 1863 01/03/2023 Compensation Common 03/27/2023 Dividend Reinvestment Issuer N 54 03/27/2023 Cash Common 06/26/2023 Dividend Reinvestment Issuer N 387 06/26/2023 Cash Common 09/25/2023 Dividend Reinvestment Issuer N 41 09/25/2023 Cash Common 12/02/2023 Restricted Stock Vesting Issuer N 8769 12/02/2023 Compensation Common 12/04/2023 Restricted Stock Vesting Issuer N 4791 12/04/2023 Compensation Common 12/05/2023 Restricted Stock Vesting Issuer N 3541 12/05/2023 Compensation Common 12/22/2023 Dividend Reinvestment Issuer N 46 12/22/2023 Cash Common 01/03/2024 Restricted Stock Vesting Issuer N 8916 01/03/2024 Compensation Common 02/27/2024 Restricted Stock Vesting Issuer N 102377 02/27/2024 Compensation Common 03/25/2024 Restricted Stock Vesting Issuer N 606 03/25/2024 Compensation Common 06/25/2024 Restricted Stock Vesting Issuer N 690 06/25/2024 Compensation Common 09/24/2024 Restricted Stock Vesting Issuer N 793 09/24/2024 Compensation Y 02/11/2025 11/12/2024 /s/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Eric Carre