SEC Filing | Occidental Petroleum Corporation

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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 13F Form 13F COVER PAGE Report for the Calendar Year or Quarter Ended: March 31, 2011 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 May 10, 2011 --------------------------- ----------------------- ----------------- [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: 43 Form 13F Information Table Value Total: $120,188 (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 28-13910 Phibro Trading LLC 2 28-13909 Oxy Energy Services Inc. 3 28-13908 Occidental Petroleum Investment Co. 4 28-12381 Phibro LLC

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 ---------------------------- -------------- --------- -------- ------- --- ---- -------------- -------- ------ ------ ------ ANADARKO PETE CORP COM 032511107 1931 23574 SH SHARED-DEFINED 1,2,3 23574 APACHE CORP COM 037411105 1484 11335 SH SHARED-DEFINED 1,2,3 11335 BARRICK GOLD CORP COM 067901108 448 8626 SH SHARED-DEFINED 1,2,3 8626 BP PLC SPONSORED ADR 055622104 254 5765 SH SHARED-DEFINED 1,2,3 5765 BRIGHAM EXPLORATION CO COM 109178103 414 11135 SH SHARED-DEFINED 1,2,3 11135 CANADIAN NAT RES LTD COM 136385101 1601 32398 SH SHARED-DEFINED 1,2,3 32398 CHESAPEAKE ENERGY CORP COM 165167107 1444 43082 SH SHARED-DEFINED 1,2,3 43082 CHEVRON CORP NEW COM 166764100 6585 61266 SH SHARED-DEFINED 1,2,3 61266 CIMAREX ENERGY CO COM 171798101 805 6987 SH SHARED-DEFINED 1,2,3 6987 CME GROUP INC COM 12572Q105 1809 6000 SH SHARED-DEFINED 1,2,3 6000 CONOCOPHILLIPS COM 20825C104 3339 41805 SH SHARED-DEFINED 1,2,3 41805 CONSOL ENERGY INC COM 20854P109 620 11564 SH SHARED-DEFINED 1,2,3 11564 CONTINENTAL RESOURCES INC COM 212015101 1508 21103 SH SHARED-DEFINED 1,2,3 21103 CORE LABORATORIES N V COM N22717107 2113 20679 SH SHARED-DEFINED 1,2,3 20679 COSAN LTD SHS A G25343107 635 49203 SH SHARED-DEFINED 1,2,3 49203 DEVON ENERGY CORP NEW COM 25179M103 3987 43450 SH SHARED-DEFINED 1,2,3 43450 EXXON MOBIL CORP COM 30231G102 2656 31570 SH SHARED-DEFINED 1,2,3 31570 FLUOR CORP NEW COM 343412102 2520 34205 SH SHARED-DEFINED 1,2,3 34205 FREEPORT-MCMORAN COPPER & GO COM 35671D857 1065 19170 SH SHARED-DEFINED 1,2,3 19170 GERDAU S A SPONSORED ADR 373737105 655 52398 SH SHARED-DEFINED 1,2,3 52398 HALLIBURTON CO COM 406216101 4332 86917 SH SHARED-DEFINED 1,2,3 86917 HESS CORP COM 42809H107 4661 54696 SH SHARED-DEFINED 1,2,3 54696 INTERCONTINENTALEXCHANGE INC COM 45865V100 391 3162 SH SHARED-DEFINED 1,2,3 3162 MARATHON OIL CORP COM 565849106 279 5240 SH SHARED-DEFINED 1,2,3 5240 MARKET VECTORS ETF TR GOLD MINER ETF 57060U100 6359 105799 SH SHARED-DEFINED 1,2,3 105799 MOSAIC CO COM 61945A107 1233 15656 SH SHARED-DEFINED 1,2,3 15656 MURPHY OIL CORP COM 626717102 2543 34637 SH SHARED-DEFINED 1,2,3 34637 NATIONAL OILWELL VARCO INC COM 637071101 5671 71537 SH SHARED-DEFINED 1,2,3 71537 OIL SVC HOLDRS TR DEPOSTRY RCPT 678002106 4893 29770 SH SHARED-DEFINED 1,2,3 29770 PEABODY ENERGY CORP COM 704549104 1242 17253 SH SHARED-DEFINED 1,2,3 17253 PETROLEO BRASILEIRO SA PETRO SPONSORED ADR 71654V408 2381 58880 SH SHARED-DEFINED 1,2,3 58880 RANGE RES CORP COM 75281A109 187 3195 SH SHARED-DEFINED 1,2,3 3195 ROYAL DUTCH SHELL PLC SPONS ADR A 780259206 3978 54599 SH SHARED-DEFINED 1,2,3 54599 SCHLUMBERGER LTD COM 806857108 5012 53746 SH SHARED-DEFINED 1,2,3 53746 SELECT SECTOR SPDR TR SBI INT-ENERGY 81369Y506 26453 331697 SH SHARED-DEFINED 1,2,3 331697 SPDR SERIES TRUST S&P OILGAS EXP 78464A730 5856 90904 SH SHARED-DEFINED 1,2,3 90904 STATOIL ASA SPONSORED ADR 85771P102 1272 46008 SH SHARED-DEFINED 1,2,3 46008 SUNCOR ENERGY INC NEW COM 867224107 1651 36814 SH SHARED-DEFINED 1,2,3 36814 TETRA TECHNOLOGIES INC DEL COM 88162F105 116 7553 SH SHARED-DEFINED 1,2,3 7553 UNITED STATES NATL GAS FUND UNIT NEW 912318110 575 50000 SH SHARED-DEFINED 1,2,3 50000 UNITED STATES STL CORP NEW COM 912909108 775 14377 SH SHARED-DEFINED 1,2,3 14377 VALE S A ADR 91912E105 672 20152 SH SHARED-DEFINED 1,2,3 20152 WHITING PETE CORP NEW COM 966387102 3783 51511 SH SHARED-DEFINED 1,2,3 51511