UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 13F Form 13F COVER PAGE Report for the Calendar Year or Quarter Ended: June 30, 2010 Check here if Amendment [ ]; Amendment Number: This Amendment (Check only one.): [ ] is a restatement. [ ] adds new holdings entries. Institutional Investment Manager Filing this Report: Name: Occidental Petroleum Corporation Address: 10889 Wilshire Boulevard Los Angeles, California 90024 Form 13F File Number: 28-10313 The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form. Person Signing this Report on Behalf of Reporting Manager: Name: Roy Pineci Vice President, Controller and Principal Accounting Officer Occidental Petroleum Corporation Phone: (310) 208-8800 Signature, Place, and Date of Signing: /s/ ROY PINECI Los Angeles, California August 5, 2010 --------------------------- ----------------------- ----------------- [Signature] [City, State] [Date] Report Type (Check only one.): [X] 13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager are reported in this report.) [ ] 13F NOTICE. (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).) [ ] 13F COMBINATION REPORT. (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).) Form 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: 4 Form 13F Information Table Entry Total: 22 Form 13F Information Table Value Total: $60,544 (thousands) List of Other Included Managers: Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report. No. 13F File Number Name 1 28-12381 Phibro LLC 2 28-13910 Phibro Trading LLC 3 28-13909 Oxy Energy Services Inc. 4 28-13908 Occidental Petroleum Investment Co. FORM 13F INFORMATION TABLE COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8 ---------------------------- -------------- --------- -------- ---------------- -------------- -------- -------------------- VOTING AUTHORITY VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER -------------------- NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE ---------------------------- -------------- --------- -------- ------- --- ---- -------------- -------- ------ ------ ------ CME GROUP INC COM 12572Q105 2252 8000 SH SHARED-DEFINED 1,2,3,4 8000 INTERCONTINENTALEXCHANGE INC COM 45865V100 357 3162 SH SHARED-DEFINED 1,2,3,4 3162 APACHE CORP COM 037411105 1320 15676 SH SHARED-DEFINED 1,2,3,4 15676 BRIGHAM EXPLORATION CO COM 109178103 945 61453 SH SHARED-DEFINED 1,2,3,4 61453 CANADIAN NAT RES LTD COM 136385101 3300 99308 SH SHARED-DEFINED 1,2,3,4 99308 CIMAREX ENERGY CO COM 171798101 1347 18812 SH SHARED-DEFINED 1,2,3,4 18812 CONOCOPHILLIPS COM 20825C104 1464 29830 SH SHARED-DEFINED 1,2,3,4 29830 CONTINENTAL RESOURCES INC COM 212015101 1011 22650 SH SHARED-DEFINED 1,2,3,4 22650 CORE LABORATORIES N V COM N22717107 1641 11115 SH SHARED-DEFINED 1,2,3,4 11115 DEVON ENERGY CORP NEW COM 25179M103 3849 63183 SH SHARED-DEFINED 1,2,3,4 63183 EOG RES INC COM 26875P101 3353 34087 SH SHARED-DEFINED 1,2,3,4 34087 EXXON MOBIL CORP COM 30231G102 2696 47237 SH SHARED-DEFINED 1,2,3,4 47237 MARATHON OIL CORP COM 565849106 897 28859 SH SHARED-DEFINED 1,2,3,4 28859 NOBLE ENERGY INC COM 655044105 452 7500 SH SHARED-DEFINED 1,2,3,4 7500 RANGE RES CORP COM 75281A109 1294 32226 SH SHARED-DEFINED 1,2,3,4 32226 ROYAL DUTCH SHELL PLC SPONS ADR A 780259206 2341 46610 SH SHARED-DEFINED 1,2,3,4 46610 SCHLUMBERGER LTD COM 806857108 4368 78922 SH SHARED-DEFINED 1,2,3,4 78922 SELECT SECTOR SPDR TR SBI INT-ENERGY 81369Y506 19522 392960 SH SHARED-DEFINED 1,2,3,4 392960 SOUTHWESTERN ENERGY CO COM 845467109 1959 50691 SH SHARED-DEFINED 1,2,3,4 50691 SUNCOR ENERGY INC NEW COM 867224107 2993 101676 SH SHARED-DEFINED 1,2,3,4 101676 ULTRA PETROLEUM CORP COM 903914109 1912 43204 SH SHARED-DEFINED 1,2,3,4 43204 WHITING PETE CORP NEW COM 966387102 1271 16206 SH SHARED-DEFINED 1,2,3,4 16206