GEOSPACE TECHNOLOGIES CORP — Director's Dealing 2004

Aug 3, 2004

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: OYO GEOSPACE CORP (OYOG)
CIK: 0001001115
Period of Report: 2004-07-26

Reporting Person: Rice Lacey (Vice President)

Holdings (Non-Derivative)

Security	Shares	Ownership
None	0	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Options (right to buy)	$18.41	2014-07-20	Common Stock (1000)		Direct
Options (right to buy)	$14.00	2007-11-26	Common Stock (8000)		Indirect
Options (right to buy)	$11.6875	2009-11-05	Common Stock (100)		Indirect
Options (right to buy)	$8.65	2013-03-25	Common Stock (2000)		Indirect
Options (right to buy)	$8.625	2009-04-28	Common Stock (900)		Indirect

Footnotes

F1: These options were granted pursuant to the OYO Geospace Corporation 1997 Key Employee Stock Option Plan. The options granted will become exercisable with respect to 250 shares on each July 26 in 2005, 2006, 2007, and 2008.

F2: These options were granted pursuant to the OYO Geospace Corporation 1997 Key Employee Stock Option Plan. The options vest 25% on the first anniversary date of the grant and 25% on each of the subsequent three anniversary dates of the grant.

F3: These options were granted pursuant to the OYO Geospace Corporation 1999 Broad-Based Option Plan and are fully vested on the first anniversary of the grant date.