-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 D4OUK6Hlnd0SaaTGxfCiEF3703xFg4mGdAaVJiilRAJitKAmz4oY0m/iJfgvQAym
 3iAqW4/fspg/Z9fWUO9qOA==

<SEC-DOCUMENT>0001209191-03-012683.txt : 20030721
<SEC-HEADER>0001209191-03-012683.hdr.sgml : 20030721
<ACCEPTANCE-DATETIME>20030721160853
ACCESSION NUMBER:		0001209191-03-012683
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030717
FILED AS OF DATE:		20030721

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SCHWALBE JOHN F
		CENTRAL INDEX KEY:			0001254075

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-25142
		FILM NUMBER:		03794755

	BUSINESS ADDRESS:	
		STREET 1:		10700 RICHMOND AVENUE
		STREET 2:		#219
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77042
		BUSINESS PHONE:		7139747173

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MITCHAM INDUSTRIES INC
		CENTRAL INDEX KEY:			0000926423
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-EQUIPMENT RENTAL & LEASING, NEC [7359]
		IRS NUMBER:				760210849
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			0131

	BUSINESS ADDRESS:	
		STREET 1:		8141 SH 75 SOUTH
		STREET 2:		PO BOX 1175
		CITY:			HUNTSVILLE
		STATE:			TX
		ZIP:			77342
		BUSINESS PHONE:		9362912277

	MAIL ADDRESS:	
		STREET 1:		P O BOX 1175
		CITY:			HUNTSVILLE
		STATE:			TX
		ZIP:			77342
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>boh07540_boh1jfs.xml
<DESCRIPTION>MAIN DOCUMENT DESCRIPTION
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument><schemaVersion>X0101</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-07-17</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000926423</issuerCik><issuerName>MITCHAM INDUSTRIES INC</issuerName>        <issuerTradingSymbol>MIND</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001254075</rptOwnerCik><rptOwnerName>SCHWALBE JOHN F</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>  </rptOwnerStreet1><rptOwnerStreet2>  </rptOwnerStreet2><rptOwnerCity>  </rptOwnerCity><rptOwnerState>  </rptOwnerState><rptOwnerZipCode>  </rptOwnerZipCode></reportingOwnerAddress><reportingOwnerRelationship><isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><derivativeSecurity><securityTitle><value>Stock Option (Right to Buy)</value></securityTitle><conversionOrExercisePrice><value>1.9
0</value></conversionOrExercisePrice><transactionDate><value>2003-07-17</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>30000</value></transactionShares><transactionValue><value>0</value></transactionValue><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2004-07-17</value></exerciseDate><expirationDate><value>2013-07-17</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>30000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>30000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><
/ownershipNature></derivativeSecurity><ownerSignature><signatureName>/s/ John F. Schwalbe</signatureName><signatureDate>2003-07-21</signatureDate></ownerSignature></ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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