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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 SDFrkWBvLzV5ODTvI7VFHUUHMulmAn+x21Q2jkO/AyrL4GOgf3xZK0GDd2o3CQd2
 F/MmRFZ2reR5E79MjYNSGQ==

<SEC-DOCUMENT>0001181431-03-034779.txt : 20031209
<SEC-HEADER>0001181431-03-034779.hdr.sgml : 20031209
<ACCEPTANCE-DATETIME>20031209162917
ACCESSION NUMBER:		0001181431-03-034779
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031205
FILED AS OF DATE:		20031209

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			INPUT OUTPUT INC
		CENTRAL INDEX KEY:			0000866609
		STANDARD INDUSTRIAL CLASSIFICATION:	MEASURING & CONTROLLING DEVICES, NEC [3829]
		IRS NUMBER:				222286646
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0531

	BUSINESS ADDRESS:	
		STREET 1:		11104 W AIRPORT BLVD
		STREET 2:		SUITE 200
		CITY:			STAFFORD
		STATE:			TX
		ZIP:			77477
		BUSINESS PHONE:		2819333339

	MAIL ADDRESS:	
		STREET 1:		11104 W AIRPORT BLVD
		STREET 2:		SUITE 200
		CITY:			STAFFORD
		STATE:			TX
		ZIP:			77477

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			LAITRAM LLC
		CENTRAL INDEX KEY:			0001072811
		STATE OF INCORPORATION:			LA
		FISCAL YEAR END:			0331

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12691
		FILM NUMBER:		031045125

	BUSINESS ADDRESS:	
		STREET 1:		C/O LAITRAM CORP
		STREET 2:		220 LAITRAM LANE
		CITY:			HARAHAN
		STATE:			LA
		ZIP:			70123
		BUSINESS PHONE:		5047336000

	MAIL ADDRESS:	
		STREET 1:		C/O LAITRAM CORP
		STREET 2:		220 LAITRAM LANE
		CITY:			HARAHAN
		STATE:			LA
		ZIP:			70123

	FORMER NAME:	
		FORMER CONFORMED NAME:	LAITRAM CORP
		DATE OF NAME CHANGE:	19981030
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd24842.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType><periodOfReport>2003-12-05</periodOfReport><notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000866609</issuerCik>
        <issuerName>INPUT OUTPUT INC</issuerName>
        <issuerTradingSymbol>(IO)</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001072811</rptOwnerCik>
            <rptOwnerName>LAITRAM LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>220 LAITRAM LANE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HARAHAN</rptOwnerCity>
            <rptOwnerState>LA</rptOwnerState>
            <rptOwnerZipCode>70123</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>0</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>1</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-12-05</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>P</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>2150000</value></transactionShares><transactionPricePerShare><value>3.48</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>6941044</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeTransaction></nonDerivativ
eTable><ownerSignature><signatureName>Barry L. LaCour, Secretary</signatureName><signatureDate>2003-12-09</signatureDate></ownerSignature></ownershipDocument>



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