HALLIBURTON CO

In accordance with the Securities Exchange Act of 1934 Rules 13a-15 and 15d-15, we carried out an evaluation, under

the supervision and with the participation of management, including our Chief Executive Officer and Chief Financial Officer, of

the effectiveness of our disclosure controls and procedures as of the end of the period covered by this report. Based on that

evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were

effective as of December 31, 2025 to provide reasonable assurance that information required to be disclosed in our reports filed

or submitted under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in the

Securities and Exchange Commission’s rules and forms. Our disclosure controls and procedures include controls and

procedures designed to ensure that information required to be disclosed in reports filed or submitted under the Exchange Act is

accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as

appropriate, to allow timely decisions regarding required disclosure.

There has been no change in our internal control over financial reporting that occurred during the three months ended

December 31, 2025 that has materially affected, or is reasonably likely to materially affect, our internal control over financial

reporting.

See page 40 for Management’s Report on Internal Control Over Financial Reporting and page 43 for Report of

Independent Registered Public Accounting Firm on its assessment of our internal control over financial reporting.

During the quarter ended December 31, 2025, no director or officer of the Company adopted orterminated a “Rule

10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408 of Regulation S-K.