<SEC-DOCUMENT>0001140361-16-059167.txt : 20160328
<SEC-HEADER>0001140361-16-059167.hdr.sgml : 20160328
<ACCEPTANCE-DATETIME>20160328171147
ACCESSION NUMBER:		0001140361-16-059167
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20160324
FILED AS OF DATE:		20160328
DATE AS OF CHANGE:		20160328

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			OCCIDENTAL PETROLEUM CORP /DE/
		CENTRAL INDEX KEY:			0000797468
		STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
		IRS NUMBER:				954035997
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		5 GREENWAY PLAZA
		STREET 2:		SUITE 110
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77046
		BUSINESS PHONE:		7132157000

	MAIL ADDRESS:	
		STREET 1:		5 GREENWAY PLAZA
		STREET 2:		SUITE 110
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77046

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ATKINS HOWARD I
		CENTRAL INDEX KEY:			0001201221

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09210
		FILM NUMBER:		161532917

	MAIL ADDRESS:	
		STREET 1:		OCCIDENTAL PETROLEUM CORPORATION
		STREET 2:		5 GREENWAY PLAZA, STE 110
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77046
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2016-03-24</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000797468</issuerCik>
        <issuerName>OCCIDENTAL PETROLEUM CORP /DE/</issuerName>
        <issuerTradingSymbol>OXY</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001201221</rptOwnerCik>
            <rptOwnerName>ATKINS HOWARD I</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>OCCIDENTAL PETROLEUM CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>5 GREENWAY PLAZA, STE. 110</rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77046</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2016-03-24</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>6</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20677</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">On March 24, 2016 (the &quot;distribution date&quot;), holders of Occidental Petroleum Corporation (&quot;OPC&quot;) common stock as of February 29, 2016 (the &quot;record date&quot;) received 0.093618 shares (the &quot;distribution ratio&quot;) of California Resources Corporation (&quot;CRC&quot;) common stock as a dividend on each outstanding share of OPC common stock they owned on the record date (the &quot;distribution&quot;). To account for the distribution, the reporting person's OPC common stock unit award was proportionately adjusted on the distribution date to increase the common stock units subject to the award by an amount (rounded up to the nearest whole share) equal to the product of (i) the number of unpaid common stock units subject to the award as of the record date multiplied by (ii) the distribution ratio multiplied by (iii) the quotient obtained by dividing the closing price of a share of CRC common stock on the distribution date by the closing price of a share of OPC common stock on the distribution date.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Kelly A. Gaide, Attorney-in-Fact for Howard I. Atkins</signatureName>
        <signatureDate>2016-03-28</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
