GEOSPACE TECHNOLOGIES CORP — Director's Dealing 2007

Nov 5, 2007

SEC Form 4/A — Form 4/A

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

Reporting Person: MCENTIRE THOMAS T (Chief Financial Officer)

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: The shares that were issued upon the exercise of options were immediately sold, as was presented in Table I of the original filing of this Form 4.

F2: This option became exercisable in equal annual installments over a four year period. The option became fully exercisable on November 26, 2001.

F3: This number represents the partial exercise of the option issued to Mr. McEntire in November 1997 to purchase shares of common stock, par value $.01 per share, of OYO Geospace Corporation.

F4: Pursuant to General Instruction C(iii) of Form 4, the exercise price is reported in Cell 2 of this Table II.

F5: 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. This number reflects the vesting of an option to purchase 12,500 shares of common stock, par value $.01 per share, of OYO Geospace Corporation, which was omitted from the original filing of this Form 4.