X0206 3/A 2023-05-05 2023-05-15 0 0000797468 OCCIDENTAL PETROLEUM CORP /DE/ OXY 0001977241 Simmons Jeff F OCCIDENTAL PETROLEUM CORPORATION 5 GREENWAY PLAZA, STE 110 HOUSTON TX 77046 0 1 0 0 Senior Vice President Common Stock 233756 D Common Stock 3570 I by OPC Savings Plan Warrants (Right to buy) 22 2020-08-31 2027-08-03 Common Stock 18048 D 127,917 shares and 10,957 warrants were unintentionally omitted from the reporting person's original Form 3. Based on a plan statement dated May 5, 2023. /s/ Brittany A. Smith, Attorney-in-Fact for Jeff F. Simmons 2023-05-17