GEOSPACE TECHNOLOGIES CORP — Director's Dealing 2006

Apr 10, 2006

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OYO GEOSPACE CORP (OYOG)
CIK: 0001001115
Period of Report: 2006-04-03

Reporting Person: KOBAYASHI KATSUHIKO (Director, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2006-04-03	Common Stock, $.01 par value	X	5000	$10.01	Disposed	1445000	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2006-04-03	Options (obligation to sell)	$10.01	X	5000	Disposed	2012-06-28	Common Stock (5000)	Indirect

Footnotes

F1: Pursuant to a privately negotiated agreement between OYO Corporation U.S.A. and Ernest M. Hall, Jr. dated as of June 28, 2002, OYO Corporation U.S.A. granted Mr. Hall options to purchase 140,000 shares of common stock, par value $.01 per shares of OYO Geospace Corporation held by OYO Corporation U.S.A. Pursuant to a privately negotiated agreement between OYO Corporation U.S.A. and Ernest M. Hall, Jr. dated as of April 16, 1998, OYO Corporation U.S.A. granted to Mr. Hall options to purchase 160,000 shares of common stock, par value $.01 per share of OYO Geospace Corporation held by OYO Corporation U.S.A. OYO Geospace Corporation is not a party to this transaction.

F2: The reported transaction reflects Mr. Hall's partial exercise of the options granted pursuant to the agreement described in Footnote 1 for 5,000 shares of common stock. Mr. Hall also holds options for 160,000 shares of common stock, par value $.01 per share of OYO Geospace Corporation from OYO Corporation U.S.A. pursuant to another privately negotiated agreement with OYO Corporation U.S.A.