FORM 4
[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public
Utility Holding Company Act of 1935 or Section 30(f) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

SHEEN MICHAEL J 		2. Issuer Name and Ticker or Trading Symbol

OYO GEOSPACE CORP [ OYOG ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__ X __ Director                      _____ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
SVP & Chief Technical Officer
(Last)          (First)          (Middle)

7007 PINEMONT DRIVE 		3. Date of Earliest Transaction (MM/DD/YYYY)

9/7/2012
(Street)

HOUSTON, TX 77040
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8) 		4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4) 		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock, par value $.01 per share   9/7/2012     M (1)    3000   A $17.56   23738   D    
Common Stock, par value $.01 per share   9/7/2012     S (1)    3000   D $109.9334   (2) 20738   D    

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. Code
(Instr. 8) 		5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		6. Date Exercisable and Expiration Date 7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4) 		8. Price of Derivative Security
(Instr. 5) 		9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Options (right to buy)   $17.56   9/7/2012     M   (3)       3000    12/5/2012   (4) 12/5/2018   Common Stock   3000   $17.56   (5) 19078   D    

Explanation of Responses:
( 1)  These shares were issued upon the exercise of options (described in Table II) and then immediately sold.
( 2)  The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $109.71 to $110.00, inclusive. The reporting person undertakes to provide to OYO Geospace Corporation, any security holder of OYO Geospace Corporation, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.
( 3)  The shares that were issued upon the exercise of options were immediately sold, as is presented in Table I.
( 4)  This option will become exercisable in four equal annual installments, and will be fully exercisable on December 5, 2012.
( 5)  Pursuant to General Instruction C(iii) of Form 4, the exercise price is reported in column 2 of this Table II

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
SHEEN MICHAEL J
7007 PINEMONT DRIVE
HOUSTON, TX 77040 		X
SVP & Chief Technical Officer

Signatures
/s/ Michael Sheen 9/10/2012
** Signature of Reporting Person Date


Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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