GEOSPACE TECHNOLOGIES CORP — Director's Dealing 2007

Sep 4, 2007

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OYO GEOSPACE CORP (OYOG)
CIK: 0001001115
Period of Report: 2007-08-29

Reporting Person: SHEEN MICHAEL J (Director, SVP & Chief Technical Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2007-08-29	Common Stock, par value $.01 per share	M	6667	$14.00	Acquired	26667	Direct
2007-08-29	Common Stock, par value $.01 per share	S	6667	$72.15	Disposed	20000	Direct
2007-08-30	Common Stock, par value $.01 per share	M	2908	$14.00	Acquired	22908	Direct
2007-08-30	Common Stock, par value $.01 per share	S	2908	$73.43	Disposed	20000	Direct
2007-08-31	Common Stock, par value $.01 per share	M	425	$14.00	Acquired	20425	Direct
2007-08-31	Common Stock, par value $.01 per share	S	425	$73.65	Disposed	20000	Direct
2007-08-31	Common Stock, par value $.01 per share	P	10000	$75.58	Acquired	30000	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2007-08-29	Options (right to buy)	$14.00	M	6667	Disposed	2007-11-26	Common Stock (6667)	Direct
2007-08-30	Options (right to buy)	$14.00	M	2908	Disposed	2007-11-26	Common Stock (2908)	Direct
2007-08-31	Options (right to buy)	$14.00	M	425	Disposed	2007-11-26	Common Stock (425)	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: This option became exercisable in equal annual installments over a four year period. The option became fully exercisable on November 26, 2001.

F4: This number represents the partial exercise of the option issued to Mr. Sheen in November 1997 to purchase shares of common stock, par value $.01 per share, of OYO Geospace Corporation.

F5: Pursuant to General Instruction C(iii) of Form 4, the exercise price is reported in Cell 2 of this Table II.

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.