<PAGE>

================================================================================

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549


                                    FORM 10-Q


[X]  Quarterly Report Pursuant to Section 13 or 15(d) of the Securities
     Exchange Act of 1934 for the Quarterly Period Ended December 31, 2000

[_]  Transition Report Pursuant to Section 13 or 15(d) of the Securities
     Exchange Act of 1934



                       Commission file number 001-13601



                           OYO GEOSPACE CORPORATION
            (Exact Name of Registrant as Specified in Its Charter)


                  Delaware                                76-0447780
      (State or Other Jurisdiction of                  (I.R.S. Employer
       Incorporation or Organization)                 Identification No.)



                        12750 South Kirkwood, Suite 200
                             Stafford, Texas 77477
                   (Address of Principal Executive Offices)



                                (281) 494-8282
             (Registrant's telephone number, including area code)



Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such shorter period that the Registrant was
required to file such reports), and (2) has been subject to such filing
requirements for the past 90 days.
Yes   X    No_____
    -----

There were 5,522,930 shares of the Registrant's Common Stock outstanding as of
the close of business on February 6, 2000.


================================================================================
<PAGE>

                                Table of Contents

<TABLE>
<CAPTION>
PART I.  FINANCIAL INFORMATION                                                   Page
-------------------------------                                                 Number
                                                                                ------
<S>                                                                             <C>
     Item 1.  Financial Statements                                                 3

     Item 2.  Management's Discussion and Analysis of Financial Condition
               and Results of Operations                                           9

PART II.  OTHER INFORMATION
---------------------------

     Item 6.  Exhibits and Reports on Form 8-K                                    13
</TABLE>

                                       2
<PAGE>

                        PART I - FINANCIAL INFORMATION

Item 1. Financial Statements

                       REPORT OF INDEPENDENT ACCOUNTANTS

Board of Directors
OYO Geospace Corporation and Subsidiaries

         We have reviewed the accompanying consolidated balance sheet of OYO
Geospace Corporation and Subsidiaries as of December 31, 2000, and the related
consolidated statements of operations for the three months ended December 31,
2000 and 1999, and the consolidated statements of cash flows for the three
months ended December 31, 2000 and 1999. These financial statements are the
responsibility of the Company's management.

         We conducted our review in accordance with standards established by the
American Institute of Certified Public Accountants. A review of interim
financial information consists principally of applying analytical procedures to
financial data and making inquiries of persons responsible for financial and
accounting matters. It is substantially less in scope than an audit conducted in
accordance with auditing standards generally accepted in the United States of
America, the objective of which is the expression of an opinion regarding the
financial statements taken as a whole. Accordingly, we do not express such an
opinion.

         Based on our review, we are not aware of any material modifications
that should be made to the aforementioned financial statements for them to be in
conformity with accounting principles generally accepted in the United States of
America.

         We have previously audited, in accordance with auditing standards
generally accepted in the United States of America, the consolidated balance
sheet as of September 30, 2000, and the related consolidated statements of
operations, changes in stockholders' equity, and cash flows for the year then
ended (not presented herein) and, in our report dated November 9, 2000, we
expressed an unqualified opinion on those consolidated financial statements. In
our opinion, the information set forth in the accompanying consolidated balance
sheet as of September 30, 2000, is fairly stated, in all material respects, in
relation to the consolidated balance sheet from which it has been derived.



                                                /s/ PricewaterhouseCoopers LLP


Houston, Texas
January 24, 2001

                                       3
<PAGE>

                   OYO GEOSPACE CORPORATION AND SUBSIDIARIES

                          CONSOLIDATED BALANCE SHEETS
                                (in thousands)

<TABLE>
<CAPTION>
                           ASSETS                                December 31, 2000  September 30, 2000
                                                                 -----------------  ------------------
                                                                    (unaudited)
<S>                                                              <C>                <C>
Current assets:
    Cash and cash equivalents ............................            $  1,074          $  3,989
    Trade accounts and notes receivable, net .............              11,179             8,509
    Inventories ..........................................              22,774            22,095
    Deferred income tax ..................................               1,464             1,320
    Prepaid expenses and other ...........................               1,851             1,778
                                                                      --------          --------

         Total current assets ............................              38,342            37,691

Rental equipment, net ....................................               2,549             1,846
Property, plant and equipment, net .......................              19,359            19,550
Goodwill and other intangible assets, net ................               5,097             5,204
Deferred income tax ......................................                 315               675
Other assets .............................................                 151               142
                                                                      --------          --------

         Total assets ....................................            $ 65,813          $ 65,108
                                                                      ========          ========

             LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:
    Notes payable and current maturities of long-term debt            $    201          $    198
    Accounts payable .....................................               5,268             5,694
    Accrued expenses and other ...........................               3,286             2,679
    Income tax payable ...................................                 385               232
                                                                      --------          --------

         Total current liabilities .......................               9,140             8,803

Long-term debt ...........................................               3,932             3,984
Deferred income tax ......................................               1,531             1,612
                                                                      --------          --------

         Total liabilities ...............................              14,603            14,399
                                                                      --------          --------

Stockholders' equity:
    Preferred stock ......................................                  --                --
    Common stock .........................................                  55                55
    Additional paid-in capital ...........................              30,183            30,088
    Retained earnings ....................................              22,146            21,875
    Accumulated other comprehensive loss .................                (663)             (679)
    Unearned compensation-restricted stock awards ........                (511)             (630)
                                                                      --------          --------

         Total stockholders' equity ......................              51,210            50,709
                                                                      --------          --------

         Total liabilities and stockholders' equity ......            $ 65,813          $ 65,108
                                                                      ========          ========
</TABLE>

         The accompanying notes are an integral part of the consolidated
                             financial statements.

                                       4
<PAGE>

                   OYO GEOSPACE CORPORATION AND SUBSIDIARIES

                     CONSOLIDATED STATEMENTS OF OPERATIONS
              (in thousands, except share and per share amounts)
                                  (unaudited)


<TABLE>
<CAPTION>
                                                   Three Months       Three Months
                                                      Ended              Ended
                                                December 31, 2000   December 31, 1999
                                                -----------------   -----------------
<S>                                             <C>                <C>
Sales ..........................................   $    14,967          $    12,795
Cost of sales ..................................        10,108                8,413
                                                   -----------          -----------

Gross profit ...................................         4,859                4,382

Operating expenses:
    Selling, general and administrative expenses         2,982                2,431
    Research and development expenses ..........         1,469                1,336
                                                   -----------          -----------

         Total operating expenses ..............         4,451                3,767
                                                   -----------          -----------

Income from operations .........................           408                  615

Other income (expense):
    Interest expense ...........................           (80)                 (77)
    Interest income ............................            34                   80
    Other, net .................................            24                   26
                                                   -----------          -----------

         Total other income (expense), net .....           (22)                  29
                                                   -----------          -----------

Income before income tax expense ...............           386                  644
Income tax expense .............................           115                  225
                                                   -----------          -----------

Net income .....................................   $       271          $       419
                                                   ===========          ===========

Basic earnings per share .......................   $      0.05          $      0.08
                                                   ===========          ===========

Diluted earnings per share .....................   $      0.05          $      0.08
                                                   ===========          ===========

Weighted average shares outstanding - Basic ....     5,463,152            5,409,837

Weighted average shares outstanding - Diluted ..     5,577,984            5,474,332
</TABLE>

         The accompanying notes are an integral part of the consolidated
                             financial statements.

                                       5
<PAGE>

                   OYO GEOSPACE CORPORATION AND SUBSIDIARIES

                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                                (in thousands)
                                  (unaudited)

<TABLE>
<CAPTION>
                                                                    Three Months           Three Months
                                                                        Ended                  Ended
                                                                  December 31, 2000     December  31, 1999
                                                                  -----------------     ------------------
<S>                                                               <C>                   <C>
Cash flows from operating expenses:
    Net income ...............................................         $   271              $   419
    Adjustments to reconcile net income to net cash provided
     by (used in) operating activities:
     Deferred income tax .....................................             130                   62
     Depreciation and amortization ...........................             957                  829
     Amortization of restricted stock awards .................             119                  128
     Bad debt expense ........................................              55                   79
     Effects of changes in operating assets and liabilities:
         Trade accounts and notes receivable .................          (2,725)              (2,252)
         Inventories .........................................            (679)                 259
         Prepaid expenses and other assets ...................             (73)                 (94)
         Accounts payable ....................................            (426)               1,121
         Accrued expenses and other ..........................             640                  (23)
         Income tax payable ..................................             153                 (155)
                                                                       -------              -------

         Net cash provided by (used in) operating activities .          (1,578)                 373
                                                                       -------              -------

Cash flows from investing activities:
    Capital expenditures .....................................          (1,384)              (1,307)
    Proceeds from sale of equipment ..........................               1                   75
                                                                       -------              -------

         Net cash used in investing activities ...............          (1,383)              (1,232)
                                                                       -------              -------

Cash flows from financing activities:
    Increase in notes payable ................................           3,816                 --
    Principal payments on notes payable ......................          (3,863)                 (45)
    Proceeds from exercise of stock options ..................              77                 --
                                                                       -------              -------

         Net cash provided by (used in) financing activities .              30                  (45)
                                                                       -------              -------

Effect of exchange rate changes on cash ......................              16                 (119)
                                                                       -------              -------

Decrease in cash and cash equivalents ........................          (2,915)              (1,023)

Cash and cash equivalents, beginning of period ...............           3,989                5,280
                                                                       -------              -------

Cash and cash equivalents, end of period .....................         $ 1,074              $ 4,257
                                                                       =======              =======
</TABLE>

         The accompanying notes are an integral part of the consolidated
                             financial statements.

                                       6
<PAGE>

                   OYO GEOSPACE CORPORATION AND SUBSIDIARIES

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (unaudited)

1.   Basis of Presentation

     The consolidated balance sheet of OYO Geospace Corporation and its
subsidiaries (the "Company") at September 30, 2000, has been derived from the
Company's audited consolidated financial statements at that date. The
consolidated balance sheet at December 31, 2000, and the consolidated statements
of operations for the three months ended December 31, 2000 and 1999, and the
consolidated statements of cash flows for the three months ended December 31,
2000 and 1999, have been prepared by the Company, without audit. In the opinion
of management, all adjustments, consisting of normal recurring adjustments,
necessary to present fairly the consolidated financial position, results of
operations and cash flows have been made. The results of operations for the
three months ended December 31, 2000, are not necessarily indicative of the
operating results for a full year or of future operations.

     Certain information and footnote disclosures normally included in financial
statements presented in accordance with generally accepted accounting principles
have been omitted. The accompanying consolidated financial statements should be
read in conjunction with the financial statements and notes thereto contained in
the Company's Annual Report on Form 10-K for the year ended September 30, 2000.

     PricewaterhouseCoopers LLP is not subject to the liability provisions of
Section 11 of the Securities Act of 1933 for their report on the unaudited
financial information as of December 31, 2000 and for the three months ended
December 31, 2000 and 1999, because that report is not a "report" or a "part" of
a registration statement prepared or certified by PricewaterhouseCoopers LLP
within the meaning of Sections 7 and 11 of the Act.

2.   Earnings Per Common Share

     The following table summarizes the calculation of net earnings and weighted
average common shares and common equivalent shares outstanding for purposes of
the computation of earnings per share:

<TABLE>
<CAPTION>
                                                                           Three Months Ended
                                                                 ---------------------------------------
                                                                 December 31, 2000     December 31, 1999
                                                                 -----------------     -----------------
     <S>                                                         <C>                   <C>
     Net earnings available to common
       stockholders (in thousands)                                $          271         $          419
                                                                  ==============         ==============

     Weighted average common shares outstanding                        5,463,152              5,409,837
     Weighted average common share equivalents
       outstanding                                                       114,832                 64,495
                                                                  --------------         --------------

     Weighted average common shares and common
       share equivalents outstanding                                   5,577,984              5,474,332
                                                                  ==============         ==============

     Basic earnings per common share                              $         0.05         $         0.08
                                                                  ==============         ==============

     Diluted earnings per common share                            $         0.05         $         0.08
                                                                  ==============         ==============
</TABLE>

3.   Comprehensive Income

     Comprehensive income includes all changes in a company's equity, except
those resulting from investments by and distributions to owners. The following
table summarizes the components of comprehensive income (in thousands):

                                       7
<PAGE>

                   OYO GEOSPACE CORPORATION AND SUBSIDIARIES

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (unaudited)

<TABLE>
<CAPTION>
                                                                          Three Months Ended
                                                                ----------------------------------------
                                                                December 31, 2000      December 31, 1999
                                                                -----------------      -----------------
     <S>                                                        <C>                   <C>
     Net income                                                  $           271         $          419
     Foreign currency translation adjustments                                 16                   (119)
                                                                 ---------------         --------------

     Total comprehensive income                                  $           287         $          300
                                                                 ===============         ==============
</TABLE>


4.   Trade Accounts and Notes Receivable

     Trade and notes receivable consisted of the following (in thousands):

<TABLE>
<CAPTION>
                                                               December 31, 2000         September 30, 2000
                                                               -----------------         ------------------
     <S>                                                       <C>                       <C>
     Trade accounts receivable                                      $   9,141                 $    8,187
     Trade notes receivable                                             2,442                        675
     Allowance for doubtful accounts and notes                           (404)                      (353)
                                                                    ---------                 ----------

                                                                    $  11,179                 $    8,509
                                                                    =========                 ==========
</TABLE>

5.   Inventories

     Inventories consisted of the following (in thousands):

<TABLE>
<CAPTION>
                                                                 December 31, 2000            September 30, 2000
                                                                 -----------------            ------------------
     <S>                                                         <C>                          <C>
     Finished goods                                                 $   3,489                 $    2,900
     Work in process                                                    3,402                      2,708
     Raw materials                                                     15,883                     16,487
                                                                    ---------                  ---------

                                                                     $ 22,774                   $ 22,095
                                                                     ========                   ========
</TABLE>

6.   Segment and Geographic Information

     The Company manages its business and makes decisions with respect to the
deployment of resources on a single consolidated product-line basis. The Company
has one reportable segment comprised of operations in the United States, Canada
and the United Kingdom.

                                       8
<PAGE>

Item 2.  Management's Discussion and Analysis of Financial Condition and Results
         of Operations

     The following analysis of the financial condition and results of operations
of OYO Geospace Corporation should be read in conjunction with the Consolidated
Financial Statements and Notes related thereto included elsewhere in this Form
10-Q.

Industry Overview

     We design and manufacture instruments and equipment used in the acquisition
and processing of seismic data for the oil and gas industry and for the
commercial graphics industry. We have been in the seismic instrument and
equipment business since 1980, marketing our products primarily to the oil and
gas industry worldwide.

     Geoscientists use seismic data to map potential or existing oil and gas
bearing formations and the geologic structures that surround them. Seismic data
is used primarily in connection with the exploration, development and production
of oil and gas.

     Seismic data acquisition is conducted on land in several stages. First, an
energy source imparts seismic waves into the earth, reflections of which are
received and measured by geophones and hydrophones. Electrical signals generated
by the geophones and hydrophones are then transmitted through leader wire,
geophone and hydrophone string connectors and telemetric cable to data
collection units, which store information for processing and analysis. Seismic
thermal imaging products are output devices used in the field or office to
create a graphic representation of the seismic data after it has been acquired.

     Marine seismic data acquisition is conducted primarily by large ocean-going
vessels that tow long seismic cables known as "streamers". Usually, the energy
source in marine seismic data acquisition is an airgun, and the reflected
seismic waves are received and measured by hydrophones, which are attached to
the streamers. The streamers then transmit the electrical impulses back to the
vessel via telemetric cable included within the streamers, and the seismic data
is then processed in much the same manner as it is on land.

     It is estimated that one-to two-thirds of the reserves associated with
every discovery will be left behind in the reservoir, not able to be recovered
economically or at times even identified. Reservoir characterization and
management programs, in which the reservoir is carefully imaged and monitored
throughout the life of the field, are now seen as a vital tool for improving
rates of return. Surveys repeated in time show dynamic changes within the
reservoir and can be used to monitor the effects of production. We are
developing and marketing a suite of borehole and reservoir characterization
products and services targeted at this market.

     We expect to incur significant future research and development expenditures
aimed at the development of additional seismic acquisition products and services
used for high definition reservoir characterization for use in both land and
marine environments.

     While orders for our products have always had the potential to vary
substantially from quarter to quarter, with variations in timing impacting our
operating results and cash flow, manufacturing capability and expense levels in
any given quarter, reservoir characterization projects, especially deepwater
projects, contemplate more equipment over a greater period of time than is
typically associated with conventional surface seismic systems. Revenue and
expense recognition in accordance with generally accepted accounting principles
for these large scale projects has the potential to produce beneficial--but
strong--fluctuations in quarterly performance.

                                       9
<PAGE>

Results of Operations

    The following table sets forth for the three months ended December 31, 2000
and 1999, the percentage of certain statement of operations items to total
sales:

<TABLE>
<CAPTION>
                                                                    Three Months Ended December 31,
                                                                  ---------------------------------
                                                                        2000                  1999
                                                                  --------------        ----------
<S>                                                               <C>                   <C>
             Sales...........................................          100.0%             100.0%
             Cost of sales...................................           67.5               65.8
             Gross profit....................................           32.5               34.2
             Selling, general and administrative.............           19.9               19.0
             Research and development........................            9.9               10.4
             Income from operations..........................            2.7                4.8
             Other income (expense), net.....................           (0.1)               0.2
             Income before provision for income taxes........            2.6                5.0
             Provision for income taxes......................            0.8                1.7
             Net income......................................            1.8                3.3
</TABLE>

Fiscal Year 2000 Compared to Fiscal Year 1999.

    Sales for the three months ended December 31, 2000 increased $2.2 million,
or 17.0% from the corresponding period of the prior year. The increase in sales
was primarily due to an increase in demand in the Canadian marketplace for our
land-based seismic products. The increase in sales was partially offset by
decreases in sales of our marine and thermal imaging products.

    Cost of sales for the three months ended December 31, 2000 increased $1.7
million, or 20.1% from the corresponding period of the prior year. Cost of sales
increased as a percentage of total sales to 67.5% in the three months ended
December 31, 2000 from 65.8% in the corresponding periods of the prior year.
This percentage increase was generally attributable to the sales mix in the
current quarter containing a greater percentage of our land-based seismic
products, which generally have lower gross profit margins than our marine-based
seismic and thermal imaging products. In addition, we continue to experience
competitive pricing pressures on our land-based seismic products.

    Selling, general and administrative expenses for the three months ended
December 31, 2000 increased $0.6 million, or 22.7% from the corresponding period
of the prior year. Selling, general and administrative expenses increased as a
percentage of total sales to 19.9% in the three months ended December 31, 2000
from 19.0% in the corresponding period of the prior year, primarily as a result
of costs associated with increasing our workforce.

    Research and development expenses for the three months ended December 31,
2000 increased $0.1 million, or 10.0%, from the corresponding period of the
prior year. Research and development expenses decreased as a percentage of total
sales to 9.9% in the three months ended December 31, 2000 from 10.4% in the
corresponding period of the prior year, primarily as a result of the higher
sales.

    Our effective tax rate for the three months ended December 31, 2000 was
29.8% compared to 34.9% for the three months ended December 31, 1999. The tax
rate of the current period includes a benefit resulting from the resolution of
contingent tax matters from prior years. Excluding this benefit, our effective
rate would be 34.8% for the current period.

Liquidity and Capital Resources

    At December 31, 2000, we had $1.1 million in cash and cash equivalents. For
the three months ended December 31, 2000, we used approximately $1.6 million of
cash in operating activities principally resulting from increases in accounts
receivable and inventories, and a decrease in trade accounts payable.

                                       10
<PAGE>

    For the three months ended December 31, 2000, we used approximately $1.4
million of cash in investing activities, primarily related to capital
expenditures. We estimate that our capital expenditures in fiscal 2001 will be
approximately $6.0 million, which we expect to fund through operating cash flow
and borrowings under our credit facility.

    For the three months ended December 31, 2000, we generated approximately
$30,000 of cash from financing activities resulting from the proceeds received
for the exercise of stock options partially offset by principal payments on
long-term mortgage notes payable.

    We have a working capital line of credit under which we are able to borrow
up to $10.0 million secured by accounts receivable and inventory. The credit
agreement related to this line of credit expires in October 2001. The credit
agreement prohibits us from paying cash dividends on common stock, limits
capital expenditures, limits additional indebtedness to $7.5 million, requires
the maintenance of certain financial ratios and contains other customary
covenants. There were no borrowings outstanding at December 31, 2000 under the
credit agreement, and borrowing availability was $10.0 million. Our borrowing
availability under our existing credit facility is based on financial formulas
and ratios, which are calculated at the end of each fiscal quarter. As a result
of the operating losses we experienced in the third and fourth quarters of
fiscal year 2000, our borrowing availability may be reduced in future periods.
We currently are in discussions with a new lender to design a credit facility
more suitable for our borrowing needs and we expect that facility to be in place
during the second quarter.

    We believe that the combination of existing cash reserves, cash flows from
operations and borrowing availability under our existing credit facility or
borrowing availability under a new credit facility should provide us sufficient
capital resources and liquidity to fund our planned operations through fiscal
2001. However, there can be no assurance that we will be able to successfully
modify our existing credit facility or obtain a new credit facility or that such
sources of capital will be sufficient to support our capital requirements in the
long-term, and we may be required to issue additional debt or equity securities
in the future to meet our capital requirements.

Forward Looking Statements and Risks

    This Form 10-Q includes "forward-looking" statements which are subject to
the "safe harbor" provisions 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 about
potential future products and markets, our future financial position, business
strategy and other plans and objectives for future operations, are
forward-looking statements. Although we believe the expectations reflected in
such forward-looking statements are reasonable, we can give no assurance that
such expectations will prove to have been correct, and actual results may differ
materially from such forward-looking statements. Important factors that could
cause actual results to differ materially from our expectations are disclosed
below and in our Annual Report on Form 10-K for the year ended September 30,
2000 under the headings "Forward-Looking Statements and Risks". 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.

Our New Products May Not Achieve Market Acceptance.

    In recent years, we have incurred significant expenditures to fund our
research and development efforts and we intend to continue those expenditures in
the future. However, research and development is by its nature speculative, and
we cannot assure you that these expenditures will result in the development of
new products or services or that any new products and services we have developed
recently or may develop in the future will be commercially marketable or
profitable to us.

    In particular, we have incurred substantial expenditures to develop our
recently introduced HDSeis(TM) product line. We cannot assure you that we will
realize our expectations regarding market acceptance and revenues from these
products and services.

                                       11
<PAGE>

We May Experience Fluctuations in Quarterly Results of Operations.

     Historically, the rate of new orders for our products has varied
substantially from quarter to quarter. Moreover, we typically operate, and
expect to continue to operate, on the basis of orders in hand for our products
before we commence substantial manufacturing "runs"; hence, the completion of
orders, particularly large orders for deepwater reservoir characterization
projects, can significantly impact the operating results and cash flow for any
quarter, and results of operations for any one quarter may not be indicative of
results of operations for future quarters.

Our Customer Financing Results in Credit Risks to Us.

     We have found it necessary from time to time to extend long term trade
credit to our customers through accounts and notes receivable. As a result, we
are subject to the credit risks of nonpayment or late payment. Given current
industry conditions, some of our customers may experience liquidity
difficulties, which increases those credit risks. We cannot assure you that
sufficient aggregate amounts of uncollectible receivables and bad debt charges
will not have a material adverse effect on our future results of operations.

     At December 31, 2000, our bad debt allowance was $0.4 million. We
systematically adjust this allowance each month to reflect the estimated credit
risk associated with our trade accounts and notes receivable. We base this
adjustment on the level of past due accounts and notes receivable, customer
creditworthiness, past payment history, access to underlying collateral and
other factors. Although we believe this allowance is a fair representation of
the credit risk with respect to our outstanding receivables, we can not assure
you that this allowance will be adequate to cover every potential bad debt
exposure.

                                       12
<PAGE>

                          PART II - OTHER INFORMATION


Item 6.  Exhibits and Reports on Form 8-K.

(a)      The following exhibits are filed with this Quarterly Report.

15.1     Awareness Letter of Independent Accountants

(b)      The Company did not file any reports on Form 8-K during the quarter for
         which this report is filed.

                                       13
<PAGE>

                                  SIGNATURES


Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.


                                         OYO GEOSPACE CORPORATION



Date:  February 6, 2001                  By: /s/ Gary D. Owens
                                         -------------------------------------
                                         Gary D. Owens, Chairman of the Board
                                         President and Chief Executive Officer
                                               (duly authorized officer)




Date:  February 6, 2001                  By: /s/ Thomas T. McEntire
                                         -------------------------------------
                                              Thomas T. McEntire
                                            Chief Financial Officer
                                         (principal financial officer)

                                       14