X0508 4 2023-12-06 0000045012 HALLIBURTON CO HAL 0001673421 Carre Eric 3000 N. SAM HOUSTON PARKWAY E. HOUSTON TX 77032 0 1 0 0 EVP & Chief Financial Officer 0 Common Stock 2023-12-06 4 F 0 3109 37.37 D 125551.784 D Common Stock 2023-12-06 4 F 0 5691 37.71 D 119860.784 D Option to Buy Common Stock 31.44 2018-12-05 2028-12-05 Common Stock 50100 50100 D Option to Buy Common Stock 43.38 2017-12-06 2027-12-06 Common Stock 34425 34425 D Option to Buy Common Stock 53.54 2016-12-07 2026-12-07 Common Stock 30100 30100 D Option to Buy Common Stock 34.48 2016-01-04 2026-01-04 Common Stock 9534 9534 D Option to Buy Common Stock 39.49 2015-01-02 2025-01-02 Common Stock 24750 24750 D Option to Buy Common Stock 50.01 2014-01-02 2024-01-02 Common Stock 8300 8300 D Shares transferred to Halliburton Company for payment for Federal tax withholding obligations on lapse of restrictions on shares issued under the Stock and Incentive Plan. Said Plan permits Reporting Person to satisfy withholding tax obligation by transferring unrestricted shares to the Issuer. The stock vested on December 4, 2023 and is related to stock granted on December 4, 2019. The closing price of Halliburton Company's Common Stock on the New York Stock Exchange on December 4, 2023 was $37.37. Shares were withheld for tax reporting on December 6, 2023. The stock vested on December 2, 2023 and is related to stock granted on December 2, 2020. December 2, 2023 was a non-market date. The closing price of Halliburton Company's Common Stock on the New York Stock Exchange on December 1, 2023 was $37.71. Shares were withheld for tax reporting on December 6, 2023. Includes 41.727 shares of stock accumulated through dividend reinvestment as of September 31, 2023. /s/ Sarah I. Rubenfeld, by Power of Attorney 2023-12-08