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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 xjgeFZwUpHSdrVeEkVNAeQ==

<SEC-DOCUMENT>0001209191-03-024288.txt : 20031002
<SEC-HEADER>0001209191-03-024288.hdr.sgml : 20031002
<ACCEPTANCE-DATETIME>20031002175910
ACCESSION NUMBER:		0001209191-03-024288
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030930
FILED AS OF DATE:		20031002

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CARRIZO OIL & GAS INC
		CENTRAL INDEX KEY:			0001040593
		STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
		IRS NUMBER:				760415919
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		14701 ST MARYS LANE
		STREET 2:		STE 800
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77079
		BUSINESS PHONE:		2814961352

	MAIL ADDRESS:	
		STREET 1:		14701 ST MARYS LANE
		STREET 2:		SUITE 800
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77079

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			LOYD PAUL B JR
		CENTRAL INDEX KEY:			0000931233
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-29187-87
		FILM NUMBER:		03925372

	BUSINESS ADDRESS:	
		STREET 1:		14811 ST MARYS LANE
		STREET 2:		SUITE 148
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77079
		BUSINESS PHONE:		2814961362

	MAIL ADDRESS:	
		STREET 1:		14811 ST MARYS LANE
		STREET 2:		SUITE 148
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77079
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>boh09328_1pl.xml
<DESCRIPTION>MAIN DOCUMENT DESCRIPTION
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-09-30</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0001040593</issuerCik><issuerName>CARRIZO OIL &amp; GAS INC</issuerName>        <issuerTradingSymbol>CRZO</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0000931233</rptOwnerCik><rptOwnerName>LOYD PAUL B JR</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>108 SHASTA DRIVE</rptOwnerStreet1><rptOwnerStreet2></rptOwnerStreet2><rptOwnerCity>HOUSTON</rptOwnerCity><rptOwnerState>TX</rptOwnerState><rptOwnerZipCode>77024</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>1</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><security
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</transactionShares><transactionPricePerShare><value>7.17</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>1287253</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeTransaction></nonDerivativeTable><ownerSignature><signatureName>/s/ Paul B. Loyd, Jr.</signatureName><signatureDate>2003-10-02</signatureDate></ownerSignature></ownershipDocument>

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