News & Events

Results of Operations and Financial Condition. On May 5, 2026 , Occidental Petroleum Corporation (the “Company”) issued a press release announcing the Company’s financial condition and results of operations for the quarter ended March 31, 2026. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference. The information contained in this report and in Exhibit 99.1 shall not be deemed to be “filed” for purposes of Section…

CEO — Vicki Hollub: Vicki Hollub is retiring as CEO with a named successor.

Results of Operations and Financial Condition. On April 10, 2026 , Occidental Petroleum Corporation (the “Company”) provided a summary of factors management believes will impact the Company's first quarter of 2026 results (the “Earnings Considerations”). A copy of the Earnings Considerations is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference. The information contained in this report and in Exhibit 99.1 shall not be deemed to be “filed” for…

Entry into a Material Definitive Agreement. The information set forth in

Material Modification to Rights of Security Holders. The information set forth in

Other Events. On March 5, 2026, Occidental Petroleum Corporation (“ Occidental ”) announced (a) the early results of its previously announced (i) cash tender offers (the “ Tender Offers ”) to purchase its outstanding Zero Coupon Senior Notes due 2036 (the “ 0.000% 2036 Notes ”), 6.125% Senior Notes due 2031 (the “ 6.125% 2031 Notes ”), 6.625% Senior Notes due 2030 (the “ 6.625% 2030 Notes ”), 7.200% Debentures due 2029 (the “ 7.200% 2029 Debentures ”) and 7.950% Debentures due 2029 (the “ 7.9…

Regulation FD Disclosure . On February 19, 2026, Occidental Petroleum Corporation (“ Occidental ”) issued a press release announcing that it had commenced cash tender offers (the “ Tender Offers ”) to purchase its outstanding Zero Coupon Senior Notes due 2036 (the “ 0.000% 2036 Notes ”), 6.125% Senior Notes due 2031 (the “ 6.125% 2031 Notes ”), 6.625% Senior Notes due 2030 (the “ 6.625% 2030 Notes ”), 7.200% Debentures due 2029 (the “ 7.200% 2029 Debentures ”) and 7.950% Debentures due 2029 (…

Results of Operations and Financial Condition. On February 18, 2026 , Occidental Petroleum Corporation (the “Company”) issued a press release announcing the Company’s financial condition and results of operations for the year ended December 31, 2025. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference. The information contained in this report and in Exhibit 99.1 shall not be deemed to be “filed” for purposes of Se…

Results of Operations and Financial Condition. On January 20, 2026 , Occidental Petroleum Corporation (the “Company”) provided a summary of factors management believes will impact the Company's fourth quarter of 2025 results (the “Earnings Considerations”). A copy of the Earnings Considerations is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference. The information contained in this report and in Exhibit 99.1 shall not be deemed to be “filed” f…

Completion of Acquisition or Disposition of Assets. As previously disclosed on a Current Report on Form 8-K filed with the U.S. Securities and Exchange Commission (the “SEC”) by Occidental Petroleum Corporation (“Occidental”) on October 3, 2025, Occidental Chemical Holding, LLC and Environmental Resource Holdings, LLC, each wholly-owned indirect subsidiaries of Occidental, entered into a purchase and sale agreement with Berkshire Hathaway Inc. (“Berkshire Hathaway”), dated as of October 1, 20…

Regulation FD Disclosure. On January 2, 2026, Occidental issued a press release announcing the completion of the Divestiture. A copy of the press release is attached hereto as Exhibit 99.1. The information contained in this Item 7.01, including Exhibit 99.1, is furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) or otherwise subject to the liabilities under that Section and shall not be deemed to be incor…

Other Events As previously disclosed in a Current Report on Form 8-K filed by Occidental Petroleum Corporation (“Occidental”) on July 19, 2024, Occidental and Ecopetrol S.A. (“Ecopetrol”) were engaged in discussions regarding a structure for Ecopetrol’s potential acquisition of an undivided thirty percent (30%) interest in the assets being purchased by Occidental from CrownRock, L.P. (“CrownRock”). On July 31, 2024, Ecopetrol informed Occidental that it has decided not to acquire any interest…

Other Events. As previously disclosed, on December 10, 2023, Occidental Petroleum Corporation, a Delaware corporation (“Occidental”), entered into a Partnership Interest Purchase Agreement (the “Purchase Agreement”) with CrownRock Holdings, L.P., a Delaware limited partnership (“Limited Partner”), CrownRock GP, LLC, a Delaware limited liability company (“General Partner” and, together with the Limited Partner, the “Sellers”), Coral Holdings LP, LLC, a Delaware limited liability company and a…

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. On August 9, 2023, Robert Peterson, 52, was appointed Executive Vice President, Essential Chemistry, of Occidental Chemical Corporation (“OxyChem”). In this role, Mr. Peterson will have executive oversight for OxyChem, as well as operational readiness for Occidental Petroleum Corporation’s first Direct Air Capture (“DAC”) facility, Stratos, and sub…

Results of Operations and Financial Condition. On January 4, 2023, Occidental Petroleum Corporation (“Occidental” or the “Company”) provided a financial and operational update. The information set forth under “

Regulation FD Disclosure. Financial Update During the fourth quarter of 2022, Occidental completed its $3 billion share repurchase program and took steps to further improve its balance sheet. Following the third quarter 2022 earnings call, Occidental repaid approximately $940 million of debt and retired $450 million of notional interest rate swaps for approximately $170 million in cash. During fiscal year 2022, Occidental repaid over $10.5 billion of debt, including over $1.1 billion in the f…

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers . On September 29, 2022, Marcia E. Backus announced that she will step down from her role as Senior Vice President, General Counsel and Chief Compliance Officer of Occidental Petroleum Corporation (“Occidental” or the “Company”) effective as of December 31, 2022. Thereafter, Ms. Backus will continue to serve as Occidental’s Executive Adviser – Legal…

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. On March 4, 2022, Andrew Langham and Gary Hu each notified Occidental Petroleum Corporation (the “ Company ”) that he was resigning from the Board of Directors of the Company (the “ Board ”) and all committees of the Board on which he sits, effective immediately. As previously disclosed, Mr. Langham and Mr. Hu were directors designated by Carl C. I…

Regulation FD Disclosure . Occidental Petroleum Corporation (“Occidental”) continued to improve the company’s balance sheet in August and September 2021 by applying excess free cash flow to reduce approximately $1.3 billion of debt and settle $750 million of notional interest rate swaps. In August, Occidental repaid $224 million of 2.600% Senior Notes due August 2021 and, in September, retired $1,052 million of Floating Interest Rate Notes due August 2022. The estimated annual interest relate…

Regulation FD Disclosure . Occidental Petroleum Corporation (“Occidental”) continues to evaluate the impact of Hurricane Ida on its Gulf of Mexico and Chemical operations. We are relieved to report that all employees and contractors are safe following the storm. Occidental’s offshore platforms in the Gulf of Mexico did not incur any storm-related damage; three of the ten platforms have restarted production, with three additional platforms prepared to restart production shortly. The other four…