-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 G/8e19lsaOxtjlpRI16Phi5O/OpBLL3WrW1zrm2vM0H3yTMWmBUHJDaYmMyK6bLd
 rtcvuXeQGXyw00IU+95t7w==

<SEC-DOCUMENT>0001181431-07-017501.txt : 20070307
<SEC-HEADER>0001181431-07-017501.hdr.sgml : 20070307
<ACCEPTANCE-DATETIME>20070307105912
ACCESSION NUMBER:		0001181431-07-017501
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20070306
FILED AS OF DATE:		20070307
DATE AS OF CHANGE:		20070307

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
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	333-36727
		FILM NUMBER:		07676683

	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
<SEQUENCE>1
<FILENAME>rrd150198.xml
<DESCRIPTION>STILL TRANSACTION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-03-06</periodOfReport>

    <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 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2007-03-06</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>9450</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>68.74</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1190950</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By OYO Corporation U.S.A.</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>Katsuhiko Kobayashi, Senior Executive Officer on behalf of OYO Corporation</signatureName>
        <signatureDate>2007-03-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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