UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    Form 13F

                               Form 13F COVER PAGE

Report for the Calendar Year or Quarter Ended:   September 30, 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    November 14, 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: 54 Form 13F Information Table Value Total: $138,125 (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 ---------------------------- -------------- --------- -------- ------- --- ---- -------------- -------- ------ ------ ------ OIL SVC HOLDRS TR DEPOSTRY RCPT 678002106 9788 94932 SH SHARED-DEFINED 1,2,3 94932 AK STL HLDG CORP COM 001547108 1430 218662 SH SHARED-DEFINED 1,2,3 218662 ALCOA INC COM 013817101 2060 215258 SH SHARED-DEFINED 1,2,3 215258 ANADARKO PETE CORP COM 032511107 2840 45044 SH SHARED-DEFINED 1,2,3 45044 APACHE CORP COM 037411105 2865 35709 SH SHARED-DEFINED 1,2,3 35709 ARCH COAL INC COM 039380100 510 34964 SH SHARED-DEFINED 1,2,3 34964 AVALON RARE METALS INC COM 053470100 103 38144 SH SHARED-DEFINED 1,2,3 38144 BP PLC SPONSORED ADR 055622104 3765 104381 SH SHARED-DEFINED 1,2,3 104381 BRIGHAM EXPLORATION CO COM 109178103 244 9658 SH SHARED-DEFINED 1,2,3 9658 CME GROUP INC COM 12572Q105 1478 6000 SH SHARED-DEFINED 1,2,3 6000 CANADIAN NAT RES LTD COM 136385101 711 24296 SH SHARED-DEFINED 1,2,3 24296 CHESAPEAKE ENERGY CORP COM 165167107 1765 69079 SH SHARED-DEFINED 1,2,3 69079 CHEVRON CORP NEW COM 166764100 6124 66138 SH SHARED-DEFINED 1,2,3 66138 CIMAREX ENERGY CO COM 171798101 214 3839 SH SHARED-DEFINED 1,2,3 3839 CONOCOPHILLIPS COM 20825C104 3741 59083 SH SHARED-DEFINED 1,2,3 59083 CONTINENTAL RESOURCES INC COM 212015101 1401 28960 SH SHARED-DEFINED 1,2,3 28960 DEVON ENERGY CORP NEW COM 25179M103 1434 25863 SH SHARED-DEFINED 1,2,3 25863 EOG RES INC COM 26875P101 2396 33735 SH SHARED-DEFINED 1,2,3 33735 EXXON MOBIL CORP COM 30231G102 1275 17559 SH SHARED-DEFINED 1,2,3 17559 FREEPORT-MCMORAN COPPER & GO COM 35671D857 1712 56210 SH SHARED-DEFINED 1,2,3 56210 GENERAL MOLY INC COM 370373102 194 67000 SH SHARED-DEFINED 1,2,3 67000 HALLIBURTON CO COM 406216101 4107 134570 SH SHARED-DEFINED 1,2,3 134570 HESS CORP COM 42809H107 3059 58305 SH SHARED-DEFINED 1,2,3 58305 INTERCONTINENTALEXCHANGE INC COM 45865V100 374 3162 SH SHARED-DEFINED 1,2,3 3162 KODIAK OIL & GAS CORP COM 50015Q100 78 15000 SH SHARED-DEFINED 1,2,3 15000 MARKET VECTORS ETF TR MINOR METALS 57060U472 123 8000 SH SHARED-DEFINED 1,2,3 8000 MARKET VECTORS ETF TR GOLD MINER ETF 57060U100 5456 98867 SH SHARED-DEFINED 1,2,3 98867 MOLYCORP INC DEL COM 608753109 309 9394 SH SHARED-DEFINED 1,2,3 9394 MOSAIC CO NEW COM 61945C103 1016 20757 SH SHARED-DEFINED 1,2,3 20757 MURPHY OIL CORP COM 626717102 1849 41859 SH SHARED-DEFINED 1,2,3 41859 NATIONAL OILWELL VARCO INC COM 637071101 3858 75314 SH SHARED-DEFINED 1,2,3 75314 NEWFIELD EXPL CO COM 651290108 1349 33997 SH SHARED-DEFINED 1,2,3 33997 PEABODY ENERGY CORP COM 704549104 205 6051 SH SHARED-DEFINED 1,2,3 6051 PETROLEO BRASILEIRO SA PETRO SPONSORED ADR 71654V408 497 22152 SH SHARED-DEFINED 1,2,3 22152 QUEST RARE MINERALS LTD COM 74836T101 34 15000 SH SHARED-DEFINED 1,2,3 15000 RARE ELEMENT RES LTD COM 75381M102 65 12861 SH SHARED-DEFINED 1,2,3 12861 ROYAL DUTCH SHELL PLC SPONS ADR A 780259206 8239 133920 SH SHARED-DEFINED 1,2,3 133920 SPDR SERIES TRUST S&P OILGAS EXP 78464A730 3641 84948 SH SHARED-DEFINED 1,2,3 84948 SCHLUMBERGER LTD COM 806857108 5020 84049 SH SHARED-DEFINED 1,2,3 84049 SELECT SECTOR SPDR TR SBI INT-ENERGY 81369Y506 29717 507896 SH SHARED-DEFINED 1,2,3 507896 STATOIL ASA SPONSORED ADR 85771P102 745 34548 SH SHARED-DEFINED 1,2,3 34548 SUNCOR ENERGY INC NEW COM 867224107 2221 87304 SH SHARED-DEFINED 1,2,3 87304 TOTAL S A SPONSORED ADR 89151E109 8826 201192 SH SHARED-DEFINED 1,2,3 201192 UNITED STS GASOLINE FD LP UNITS 91201T102 459 10000 SH SHARED-DEFINED 1,2,3 10000 UNITED STATES OIL FUND LP UNITS 91232N108 2012 66000 SH SHARED-DEFINED 1,2,3 66000 UNITED STATES STL CORP NEW COM 912909108 2573 116887 SH SHARED-DEFINED 1,2,3 116887 UR ENERGY INC COM 91688R108 53 59315 SH SHARED-DEFINED 1,2,3 59315 URANERZ ENERGY CORP COM 91688T104 69 50617 SH SHARED-DEFINED 1,2,3 50617 URANIUM ENERGY CORP COM 916896103 98 35617 SH SHARED-DEFINED 1,2,3 35617 URANIUM RES INC COM PAR $0.001 916901507 16 23555 SH SHARED-DEFINED 1,2,3 23555 VALE S A ADR 91912E105 109 4768 SH SHARED-DEFINED 1,2,3 4768 WHITING PETE CORP NEW COM 966387102 3896 111054 SH SHARED-DEFINED 1,2,3 111054 COSAN LTD SHS A G25343107 143 15118 SH SHARED-DEFINED 1,2,3 15118 CORE LABORATORIES N V COM N22717107 1859 20694 SH SHARED-DEFINED 1,2,3 20694