GEOSPACE TECHNOLOGIES CORP — Director's Dealing 2006

Aug 15, 2006

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OYO GEOSPACE CORP (OYOG)
CIK: 0001001115
Period of Report: 2006-08-15

Reporting Person: STILL CHARLES H (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2006-08-15	Common Stock, par value $.01 per share	M	881	$6.81	Acquired	2045	Direct
2006-08-15	Common Stock, par value $.01 per share	S	881	$52.50	Disposed	1164	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2006-08-15	Options (right to buy)	$6.81	M	881	Disposed	2009-03-02	Common Stock (881)	Direct

Footnotes

F1: These shares were issued upon the exercise of options (described in Table II) and then immediately sold.

F2: The shares that were issued upon the exercise of options were immediately sold, as is presented in Table I.

F3: Pursuant to General Instruction C(iii) of Form 4, the exercise price is reported in Cell 2 of this Table II.

F4: Includes options to purchase common stock, par value $.01 per share, of OYO Geospace Corporation having varying exercise dates, expiration dates and exercise prices.

F5: This number represents the partial exercise of the option issued to Mr. Still in March 1999 to purchase shares of common stock, par value $.01 per share, of OYO Geospace Corporation.