-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 LuLYI5QUXc0jOLlkJO9mzA==

<SEC-DOCUMENT>0001181431-10-042791.txt : 20100820
<SEC-HEADER>0001181431-10-042791.hdr.sgml : 20100820
<ACCEPTANCE-DATETIME>20100820123402
ACCESSION NUMBER:		0001181431-10-042791
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100818
FILED AS OF DATE:		20100820
DATE AS OF CHANGE:		20100820

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SHEEN MICHAEL J
		CENTRAL INDEX KEY:			0001049654

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13601
		FILM NUMBER:		101029585

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

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
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd284436.xml
<DESCRIPTION>SHEEN EXERCISE OF OPTIONS
<TEXT>
<XML>
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    <periodOfReport>2010-08-18</periodOfReport>

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    <issuer>
        <issuerCik>0001001115</issuerCik>
        <issuerName>OYO GEOSPACE CORP</issuerName>
        <issuerTradingSymbol>OYOG</issuerTradingSymbol>
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            <rptOwnerName>SHEEN MICHAEL J</rptOwnerName>
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            <rptOwnerStreet1>7007 PINEMONT DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77040</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>SVP &amp; Chief Technical Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
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            <transactionCoding>
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            <securityTitle>
                <value>Common Stock, par value $.01 per share</value>
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                    <value>D</value>
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                <sharesOwnedFollowingTransaction>
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                    <value>D</value>
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        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $.01 per share</value>
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            <transactionDate>
                <value>2010-08-19</value>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
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                <transactionShares>
                    <value>90</value>
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                <transactionPricePerShare>
                    <value>17.94</value>
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                <transactionAcquiredDisposedCode>
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                <sharesOwnedFollowingTransaction>
                    <value>55090</value>
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                    <value>D</value>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $.01 per share</value>
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            <transactionDate>
                <value>2010-08-19</value>
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                <transactionFormType>4</transactionFormType>
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                <equitySwapInvolved>0</equitySwapInvolved>
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                <transactionPricePerShare>
                    <value>51.00</value>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
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                <sharesOwnedFollowingTransaction>
                    <value>55066</value>
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            <securityTitle>
                <value>Common Stock, par value $.01 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2010-08-19</value>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
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                </transactionShares>
                <transactionPricePerShare>
                    <value>51.53</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
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                <sharesOwnedFollowingTransaction>
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                    <value>D</value>
                </directOrIndirectOwnership>
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        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $.01 per share</value>
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            </transactionDate>
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                <transactionAcquiredDisposedCode>
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    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Options (right to buy)</value>
            </securityTitle>
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                <value>17.94</value>
            </conversionOrExercisePrice>
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                <value>2010-08-18</value>
            </transactionDate>
            <transactionCoding>
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            <transactionAmounts>
                <transactionShares>
                    <value>1088</value>
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                <transactionPricePerShare>
                    <value>0</value>
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                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2004-11-10</value>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <value>2010-11-10</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
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                    <footnoteId id="F4"/>
                </underlyingSecurityShares>
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                <value>Options (right to buy)</value>
            </securityTitle>
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                    <value>0</value>
                    <footnoteId id="F5"/>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
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            <exerciseDate>
                <value>2004-11-10</value>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <value>2010-11-10</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>90</value>
                    <footnoteId id="F4"/>
                </underlyingSecurityShares>
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                <sharesOwnedFollowingTransaction>
                    <value>108822</value>
                    <footnoteId id="F6"/>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
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        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">These shares were issued upon the exercise of options (described in Table II) and then immediately sold.</footnote>
        <footnote id="F2">The shares that were issued upon the exercise of options were immediately sold, as is presented in Table I.</footnote>
        <footnote id="F3">This option became exercisable in equal annual installments over a four year period.  The option became fully exercisable on November 10, 2004.</footnote>
        <footnote id="F4">This number represents the partial exercise of the option issued to Mr. Sheen in November 2000 to purchase shares of common stock, par value $.01 per share, of OYO Geospace Corporation.</footnote>
        <footnote id="F5">Pursuant to General Instruction 4(c)(iii) of Form 4, the exercise price is reported in Cell 2 of this Table II.</footnote>
        <footnote id="F6">Includes options to purchase shares of common stock, par value $.01 per share, of OYO Geospace Corporation having varying exercise dates, expiration dates and exercise prices.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Michael J. Sheen</signatureName>
        <signatureDate>2010-08-20</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----