<SEC-DOCUMENT>0001567619-21-010805.txt : 20210520
<SEC-HEADER>0001567619-21-010805.hdr.sgml : 20210520
<ACCEPTANCE-DATETIME>20210520163649
ACCESSION NUMBER:		0001567619-21-010805
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210519
FILED AS OF DATE:		20210520
DATE AS OF CHANGE:		20210520

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GUTIERREZ CARLOS M
		CENTRAL INDEX KEY:			0001185943

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09210
		FILM NUMBER:		21944990

	MAIL ADDRESS:	
		STREET 1:		5 GREENWAY PLAZA, STE 110
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77046

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
</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>2021-05-19</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001185943</rptOwnerCik>
            <rptOwnerName>GUTIERREZ CARLOS M</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>2021-05-19</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>5</transactionFormType>
                <transactionCode>G</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>30625</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>40470</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The reporting person gifted these shares of common stock to a grantor retained annuity trust (the &quot;GRAT&quot;) with an independent trustee on May 19, 2021 for tax and estate planning purposes. The reporting person does not have or share investment control over the shares held by the GRAT.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Brittany A. Smith, Attorney-in-Fact for Carlos M. Gutierrez</signatureName>
        <signatureDate>2021-05-20</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
