Item 4. Controls and Procedures

Occidental's President and Chief Executive Officer and its Senior Vice President and Chief Financial Officer supervised and participated in Occidental's evaluation of the effectiveness of its disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934) as of the end of the period covered by this report. Based upon that evaluation, Occidental's President and Chief Executive Officer and Senior Vice President and Chief Financial Officer concluded that Occidental's disclosure controls and procedures were effective as of June 30, 2023.

There has been no change in Occidental’s internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the three months ended June 30, 2023 that has materially affected, or is reasonably likely to materially affect, Occidental’s internal control over financial reporting.

Part II Other Information

Item 1. Legal Proceedings

Occidental has elected to use a $1 million threshold for disclosing certain proceedings arising under federal, state or local environmental laws when a governmental authority is a party and potential monetary sanctions are involved. There are no new material legal proceedings or material developments with respect to matters previously disclosed in Part I, Item 3 of Occidental’s 2022 Form 10-K for the year ended December 31, 2022 and in Part II, Item 1 of Occidental’s Form 10-Q for the quarterly period ended March 31, 2023. For information regarding legal proceedings, see Note 8 - Lawsuits, Claims, Commitments and Contingencies in the notes to the Consolidated Condensed Financial Statements in Part I, Item 1 of this Form 10-Q.