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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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<SEC-DOCUMENT>0001181431-09-000324.txt : 20090105
<SEC-HEADER>0001181431-09-000324.hdr.sgml : 20090105
<ACCEPTANCE-DATETIME>20090105104904
ACCESSION NUMBER:		0001181431-09-000324
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20081224
FILED AS OF DATE:		20090105
DATE AS OF CHANGE:		20090105

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			OYO GEOSPACE CORP
		CENTRAL INDEX KEY:			0001001115
		STANDARD INDUSTRIAL CLASSIFICATION:	MEASURING & CONTROLLING DEVICES, NEC [3829]
		IRS NUMBER:				760447780
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		7007 PINEMONT DR.
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77040
		BUSINESS PHONE:		7139864444

	MAIL ADDRESS:	
		STREET 1:		7007 PINEMONT DR.
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77040

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			OYO CORP
		CENTRAL INDEX KEY:			0001049645

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	333-36727
		FILM NUMBER:		09502853

	BUSINESS ADDRESS:	
		STREET 1:		ICHIGAYA BUILDING 2-6
		STREET 2:		KUDAN-KITE 4 CHOME,CHIODA-KU, TOKYO 102
		CITY:			JAPAN
		STATE:			M0
		ZIP:			00000
		BUSINESS PHONE:		01181332340811

	MAIL ADDRESS:	
		STREET 1:		ICHIGAYA BUILDING 2-6
		STREET 2:		KUDAN-KITE 4 CHOME,CHIYODA-KU, TOKYO 102
		CITY:			JAPAN
		STATE:			M0
		ZIP:			00000
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>rrd228383.xml
<DESCRIPTION>OYO CORP FORM 4/A FOR 12/29/08 FILING
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2008-12-24</periodOfReport>

    <dateOfOriginalSubmission>2008-12-29</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001001115</issuerCik>
        <issuerName>OYO GEOSPACE CORP</issuerName>
        <issuerTradingSymbol>OYOG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001049645</rptOwnerCik>
            <rptOwnerName>OYO CORP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ICHIGAYA BUILDING 2-6</rptOwnerStreet1>
            <rptOwnerStreet2>KUDAN-KITE 4 CHOME, CHIYODA-KU TOKYO 102</rptOwnerStreet2>
            <rptOwnerCity>JAPAN</rptOwnerCity>
            <rptOwnerState>M0</rptOwnerState>
            <rptOwnerZipCode>00000</rptOwnerZipCode>
            <rptOwnerStateDescription>JAPAN</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $.01</value>
            </securityTitle>
            <transactionDate>
                <value>2008-12-24</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>2798</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>17.02</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1254080</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By OYO Corporation U.S.A.</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $.01</value>
            </securityTitle>
            <transactionDate>
                <value>2008-12-26</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>16.81</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1259080</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By OYO Corporation U.S.A.</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The purchases reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by OYO Corporation U.S.A. on February 14, 2007, as amended on December 10, 2007.</footnote>
        <footnote id="F2">This amended Form 4 does not report any new transactions. It is being filed to correct an error in the aggregate amount of shares beneficially owned following the reported transaction which initially was misstated and incorrectly reported in the Form 4 filed on 12/29/2008 as being 1,251,282 shares.</footnote>
        <footnote id="F3">This amended Form 4 does not report any new transactions. It is being filed to correct an error in the aggregate amount of shares beneficially owned following the reported transaction which initially was misstated and incorrectly reported in the Form 4 filed on 12/29/2008 as being 1,256,282 shares.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Katsuhiko Kobayashi, Director on behalf of OYO Corporation</signatureName>
        <signatureDate>2009-01-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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