OYO GEOSPACE ANNOUNCES PUBLIC OFFERING

OF COMMON STOCK BY SELLING STOCKHOLDER

Houston, Texas – July 29, 2005 – OYO Geospace Corporation (NASDAQ: OYOG) announced today that it has filed a preliminary prospectus supplement for an offering of 1,250,000 shares of common stock pursuant to an effective shelf registration statement on Form S-3 previously filed with the Securities and Exchange Commission.  The offering consists of 1,250,000 shares of common stock to be sold by OYO Corporation U.S.A., the selling stockholder. The underwriters have an option to purchase up to 150,000 additional shares of common stock from the selling stockholder to cover over-allotments, if any. The company will not receive any proceeds from the sale of the shares of common stock offered by the selling stockholder.

RBC Capital Markets Corporation will act as sole book-running manager and Simmons & Company International will act as co-manager for the offering.

A copy of the prospectus supplement and related base prospectus relating to this offering may be obtained from RBC Capital Markets Corporation, Dain Rauscher Plaza, 60 S. 6th Street, Minneapolis, MN  55402, Attn:  Syndicate Department, Phone: (612) 371-2818.

This news release does not constitute an offer to sell or a solicitation of an offer to buy the securities described herein, nor shall there be any sales of the securities in any state or jurisdiction in which such an offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction.  The offering may be made only by means of a prospectus and related prospectus supplement.

OYO Geospace is a leading designer and manufacturer of instruments and equipment used by the oil and gas industry for acquiring and processing seismic data, and for characterizing and monitoring producing oil and gas reservoirs. The company also designs, manufactures and distributes thermal imaging equipment and dry thermal film products to a variety of markets, including the screen print, point of sale, signage and textile markets.

This press release includes “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. All statements other than statements of historical fact included herein including statements regarding potential future products and markets, our potential future revenues, future financial position, business strategy, future expectations and other plans and objectives for future operations, are forward-looking statements. We believe our forward-looking statements are reasonable. However, they are based on certain assumptions about our industry and our business that may in the future prove to be inaccurate. Important factors that could cause actual results to differ materially from our expectations include the level of seismic exploration worldwide, which is influenced primarily by prevailing prices for oil and gas, the extent to which our new products are accepted in the market, the availability of competitive products that may be more technologically advanced or otherwise preferable to our products, the resolution of the situation in the Middle East and other factors disclosed under the heading “Risk Factors” and elsewhere in our most recent Annual Report on Form 10-K and Quarterly Report on Form 10-Q, which are on file with the Securities end Exchange Commission. Further, all written and verbal forward-looking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by such factors.

OYO GEOSPACE REPORTS FISCAL 2005 THIRD QUARTER RESULTS

Third Quarter Operating Income Increases 119% from Prior Year

Houston, Texas – July 28, 2005 – OYO Geospace (NASDAQ: OYOG) today announced net income of $1.2 million, or $0.20 per diluted share, on revenues of $23.1 million for its third quarter ended June 30, 2005.  This compares with net income of $1.1 million, or $0.19 per diluted share, on revenues of $13.9 million in the comparable quarter last year.

For the nine months ended June 30, 2005, OYO Geospace recorded sales of $59.7 million and net income of $3.1 million, or $0.54 per diluted share.  For the comparable period last year, the company recorded sales of $47.6 million and net income of $5.4 million, or $0.96 per diluted share.  

The company noted that its results for the three and nine months ended June 30, 2004 include a performance bonus of $0.5 million and $3.6 million, respectively, related to the successful operation of a permanent seismic reservoir characterization system sold in fiscal year 2002.  In addition, the results for the three and nine months ended June 30, 2004 include a $0.5 million tax benefit resulting from a change in estimate for previously unrecognized tax deductions and tax credits related to fiscal year 2003.  The results for the nine months ended June 30, 2004 also reflect the reversal of a $0.8 million deferred tax valuation allowance.

Operating income for the three and nine months ended June 30, 2005 increased 119% and decreased 24%, respectively, from the comparable periods of the prior year.  Excluding the performance bonus recorded in last year’s results, operating income for the three and nine months ended June 30, 2005 increased 304% and 37%, respectively, from the comparable periods of the prior fiscal year.

“Demand for our seismic exploration products remained strong in the quarter fueled by increased worldwide demand for seismic exploration services,” said Gary D. Owens, OYO Geospace’s Chairman, President and CEO. “Both our Canadian and Russian operations also reported strong sales and profits during the quarter,” Owens continued.

“Sales of our seismic reservoir products were very good during the quarter, including the sale of a retrievable seismic seabed system for work overseas.  We also delivered a seismic borehole system for onshore reservoir characterization work here in the U.S.  We remain encouraged about the future prospects for our reservoir products,” said Owens.

“Offshore cable product sales for the quarter were the highest since these products were introduced in fiscal year 2003.  Sales of these products together with sales of our other emerging technology products once again set quarterly sales records for these product lines.  We are hopeful that sales of these non-seismic products will continue to grow in the future,” continued Owens.

Owens added, “The thermal solutions business segment enjoyed its best quarter of fiscal year 2005.  Milestones for the quarter include the start-up of printhead production in our new cleanroom facility in Houston, and the shipment from Houston of printheads to new OEM printer manufacturing customers.  With the relocation of acquired printhead production assets to our new cleanroom in Houston completed on time and within budget, we are turning our focus to new products and new markets in an effort to improve the results of this business segment.”

OYO Geospace is a leading designer and manufacturer of instruments and equipment used by the oil and gas industry for acquiring and processing seismic data, and for characterizing and monitoring producing oil and gas reservoirs. The company also designs, manufactures and distributes thermal imaging equipment and dry thermal film products to a variety of markets, including the screen print, point of sale, signage and textile markets.

This press release includes “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. All statements other than statements of historical fact included herein including statements regarding potential future products and markets, our potential future revenues, future financial position, business strategy, future expectations and other plans and objectives for future operations, are forward-looking statements. We believe our forward-looking statements are reasonable. However, they are based on certain assumptions about our industry and our business that may in the future prove to be inaccurate. Important factors that could cause actual results to differ materially from our expectations include the level of seismic exploration worldwide, which is influenced primarily by prevailing prices for oil and gas, the extent to which our new products are accepted in the market, the availability of competitive products that may be more technologically advanced or otherwise preferable to our products, the resolution of the situation in the Middle East and other factors disclosed under the heading “Risk Factors” and elsewhere in our most recent Annual Report on Form 10-K and Quarterly Report on Form 10-Q, which are on file with the Securities end Exchange Commission. Further, all written and verbal forward-looking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by such factors.

OYO GEOSPACE REPORTS FISCAL 2005 SECOND QUARTER RESULTS

Houston, Texas – May 4, 2005 – OYO Geospace (NASDAQ: OYOG) today announced net income of $1.5 million, or $0.27 per diluted share, on revenues of $21.3 million for its second quarter ended March 31, 2005.  This compares with a net income of $1.2 million, or $0.21 per diluted share, on revenues of $16.3 million in the comparable quarter last year.

For the six months ended March 31, 2005, OYO Geospace recorded sales of $36.6 million and net income of $1.9 million, or $0.33 per diluted share. For the comparable period last year, the company recorded sales of $33.7 million and a net income of $4.4 million, or $0.77 per diluted share. The company noted that its results for the six months ended March 31, 2004 benefited from the recognition of a $3.1 million performance bonus related to the successful operation of a permanent seismic reservoir characterization system sold in fiscal 2002. The $3.1 million performance bonus was recorded as revenue in the Company’s fiscal quarter ended December 31, 2003.

“Results for the quarter were fueled by an increased demand worldwide for seismic exploration products. Increased demand for seismic services has stimulated demand for our products. The quarter’s performance included record second quarter results from our Russian operations,” said Gary D. Owens, OYO Geospace’s Chairman, President and CEO. “Seismic winter activity often leads to good financial performance for our Russian operations during our second fiscal quarter; this year was no exception.  In Canada, a warmer than usual winter season slowed the usually strong demand for our Canadian rental equipment, reducing our rental revenues by $0.8 million from the comparable period last year. However, strong demand for seismic exploration product sales in Canada offset this decline,” Owens continued.

“Sales of our seismic reservoir products were low in our second quarter but late in the quarter we received new orders for products which we expect to deliver in our third quarter,” added Owens.

“The development of our emerging markets products continued to progress in our second quarter.  We shipped new marine cable products to new customers in the quarter, reflecting the expansion of our customer base and product lines in the non-seismic deepwater cable markets,” continued Owens.

“Sales into our thermal solutions market were down slightly from the comparable quarter of our prior fiscal year. Lost sales from the relocation of the printhead production business that we recently acquired from a Japanese company and charges associated with the relocation of key personnel from Japan to Houston following this acquisition contributed to the quarter’s performance.  The relocation of the printhead production assets to a newly constructed cleanroom facility in Houston was completed on time and within our budget.  We are now producing printheads at our new cleanroom facility,” said Owens.

Operating expenses for the quarter and six-month periods ended March 31, 2005 increased from the comparable periods for the prior fiscal year due to several factors, including charges for bad debts, our Sarbanes-Oxley compliance efforts, upgrades to our business software systems and the relocation of employees from Japan to Houston in connection with our acquisition of the printhead production assets,” continued Owens.

“Our backlog at the end of the quarter remains robust led by our seismic exploration and reservoir markets. Our emerging markets product lines and customer base continues to expand giving us increased optimism for their future. The new printhead cleanroom facility allows us to approach new markets in our thermal solutions segment that we believe will improve its profitability,” said Owens.

OYO Geospace designs and manufactures instruments and equipment used by the oil and gas industry in the acquisition and processing of seismic data as well as in reservoir characterization and monitoring activities. The company also designs and manufactures equipment and film for the thermal solutions industry worldwide.

This press release includes “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. All statements other than statements of historical fact included herein including statements regarding potential future products and markets, our potential future revenues, future financial position, business strategy, future expectations and other plans and objectives for future operations, are forward-looking statements. We believe our forward-looking statements are reasonable. However, they are based on certain assumptions about our industry and our business that may in the future prove to be inaccurate. Important factors that could cause actual results to differ materially from our expectations include the level of seismic exploration worldwide, which is influenced primarily by prevailing prices for oil and gas, the extent to which our products are accepted in existing and new markets, the availability of competitive products that may be more technologically advanced or otherwise preferable to our products, the resolution  of worldwide conflicts and tensions and other factors disclosed under the heading “Risk Factors” and elsewhere in our most recent Annual Report on Form 10-K and Quarterly Report on Form 10-Q, which are on file with the Securities end Exchange Commission. Further, all written and verbal forward-looking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by such factors.

Houston, Texas - February 8, 2005 - OYO Geospace (NASDAQ:OYOG) today announced net income of $372,000, or $0.07 per diluted share, on revenues of $15.3 million for its first quarter ended December 31, 2004. This compares with a net income of $3.2 million, or $0.56 per diluted share on $17.4 million in the comparable quarter last year. The company noted that its earnings for the first quarter ended December 31, 2003 benefited from the recognition of a $3.1 million performance bonus related to the successful operation of a permanent seismic reservoir characterization system sold by the company in fiscal 2002. In addition, the prior year quarterly earnings also benefited from a $0.8 million reversal of a deferred tax valuation allowance.

"Results for the quarter were fueled by an increase in demand for products serving the seismic exploration markets," said Gary D. Owens, OYO Geospace's Chairman, President and CEO. "Backlog grew throughout the quarter and remains strong. Our Canadian and Russian offices reported record first quarter results indicating strong winter work for our customers in those markets. Favorable exchange rates also contributed to the impact of our strong foreign operating results," continued Owens.

"Sales activity in our seismic reservoir markets was highlighted by a new Canadian customer for our seismic borehole technology. Active discussions continue on potential deepwater projects and quotes for retrievable systems are high which fuels our optimism for this market," said Owens.

"Our small emerging markets group continued its string of strong sales, increasing its sales level from the previous year. Activities in this part of our company remain robust. Additionally, our offshore cable markets are presenting us with strong possibilities for near term large contracts. We are encouraged that our efforts toward these non-seismic markets will be rewarded," Owens continued.

"Our thermal solutions business was also profitable for the quarter but below our internal expectations. As scheduled, we concluded the manufacturing of printheads in Japan during the quarter and have begun the process of transferring manufacturing assets and selected personnel to Houston. A new modern clean room is under construction in our Houston facility and will be ready to resume thermal printhead production by our third quarter. This is an important step towards broadening our product offering for this market and creating a better opportunity for good results for this business in the future," said Owens.

OYO Geospace designs and manufactures instruments and equipment used by the oil and gas industry in the acquisition and processing of seismic data as well as in reservoir characterization and monitoring activities. The company also designs and manufactures equipment and film for the thermal printing industry worldwide.

This press release includes "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. All statements other than statements of historical fact included herein including statements regarding potential future products and markets, our potential future revenues, future financial position, business strategy, future expectations and other plans and objectives for future operations, are forward-looking statements. We believe our forward-looking statements are reasonable. However, they are based on certain assumptions about our industry and our business that may in the future prove to be inaccurate. Important factors that could cause actual results to differ materially from our expectations include the level of seismic exploration worldwide, which is influenced primarily by prevailing prices for oil and gas, the extent to which our new products are accepted in the market, the availability of competitive products that may be more technologically advanced or otherwise preferable to our products, the resolution of the situation in the Middle East and other factors disclosed under the heading "Risk Factors" and elsewhere in our most recent Annual Report on Form 10-K and Quarterly Report on Form 10-Q, which are on file with the Securities and Exchange Commission. Further, all written and verbal forward-looking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by such factors.

OYO Geospace Corporation and Subsidiaries Consolidated Statements of Operations (in thousands except share and per share data) (unaudited)
	Three Months Ended December 31,
	2004		2003
Sales	$15,269		$17,358
Cost of sales	10,305		9,215
Gross profit	4,964		8,143
Operating expenses:
Selling, general and administrative expenses	3,284		3,447
Research and development expenses	1,178		1,200
Total operating expenses	4,462		4,647
Income from operations	502		3,496
Other income (expense):
Interest expense	(96)		(143)
Interest income	103		63
Other, net	42		77
Total other (expense), net	49		(3)
Income before income taxes and minority interest	551		3,493
Income tax expense	176		320
Income before minority interest	375		3,173
Minority interest	(3)		(5)
Net income	$372		$3,168
Basic earnings per share:	$   .07		$   .57
Diluted earnings per share:	$   .07		$  0.56
Weighted average shares outstanding - Basic	5,591,140		5,554,624
Weighted average shares outstanding - Diluted	5,704,464		5,629,389