0001181431-12-033295.txt : 20120530 0001181431-12-033295.hdr.sgml : 20120530 20120530103823 ACCESSION NUMBER: 0001181431-12-033295 CONFORMED SUBMISSION TYPE: 3 PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20120101 FILED AS OF DATE: 20120530 DATE AS OF CHANGE: 20120530 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Wheeler Walter R. CENTRAL INDEX KEY: 0001550990 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-13601 FILM NUMBER: 12876122 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 3 1 rrd347037.xml WHEELER FORM 3 X0205 3 2012-01-01 0 0001001115 OYO GEOSPACE CORP OYOG 0001550990 Wheeler Walter R. 7007 PINEMONT DRIVE HOUSTON TX 77040 0 1 0 0 Executive Vice President Common Stock, par value $.01 per share 15965 D Options (right to buy) 8.65 2004-03-25 2013-03-25 Common Stock 2000 D Options (right to buy) 17.56 2009-12-05 2018-12-05 Common Stock 3000 D Options (right to buy) 43.89 2011-02-25 2020-02-25 Common Stock 10000 D This option is fully vested. This option vests in four equal annual installments beginning December 5, 2009 will be fully vested on December 5, 2012. This option vests in four equal annual installments beginning February 25, 2011 and will be fully vested on February 25, 2014. /s/ Walter R. Wheeler 2012-05-30 EX-24.1 2 rrd311368_351587.htm WHEELER POWER OF ATTORNEY rrd311368_351587.html 
LIMITED POWER OF ATTORNEY


The undersigned, Walter R. Wheeler, hereby authorizes each of James A. Y'Barbo, Roselyn Roque-Santos
and Thomas T. McEntire (will full power to each of them to act alone), as the undersigned's true and
lawful attorney-in-fact, with full power of substitution, to:

(1)	prepare and sign in the name of and on behalf of the undersigned any and all forms and
reports required to be filed pursuant to Section 16 of the Securities Exchange Act of 1934 and
the rules thereunder, including, but without limitation, Form 3-Initial Statement of Beneficial
Ownership of Securities, Form 4-Statement of Changes of Beneficial Ownership of Securities, and
Form 5-Annual Statement of Beneficial Ownership of Securities;

(2)	perform any and all acts for and on behalf of the undersigned which may be necessary or
desirable to complete and execute any such Forms 3, 4 or 5, or other form or report, and timely
file such form or report with the United States Securities and Exchange Commission and any stock
exchange or similar authority; and

(3)	take any other action of any type in connection with the foregoing which, in the opinion
of the attorney-in-fact, may be of benefit to, in the best interest of, or legally required by,
the undersigned, it being understood that the documents executed by such attorney-in-fact on
behalf of the undersigned pursuant to this Limited Power of Attorney shall be in such form and
shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact's
discretion.

This Limited Power of Attorney shall remain in effect until the undersigned is no longer required
to file Forms 4 and 5 with respect to the undersigned's beneficial ownership of securities, unless
earlier revoked by the undersigned in a signed and dated writing delivered to each of the foregoing
attorneys-in-fact.


Executed this 24th day of May, 2012

_/s/ Walter R. Wheeler______________
Name: Walter R. Wheeler