VENTURE SEISMIC LTD
8-K, 1996-06-26
OIL & GAS FIELD EXPLORATION SERVICES
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                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549


                                    FORM 8-K

                                 CURRENT REPORT

                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934



Date of Report :  June 12, 1996



                              VENTURE SEISMIC LTD.
     ------------------------------------------------------------------------
               (Exact name of registrant as specified in charter)



                                 ALBERTA, CANADA
     -------------------------------------------------------------------------
                 (State or other jurisdiction of incorporation)


0-270270                                                            N/A
- --------                                                       ---------------
(Commission File Number)                      (IRS Employer Identification No.)



3110 - 80TH AVENUE S.E. CALGARY, ALBERTA                               T2C 1J3
- -------------------------------------------------------------------------------
(Address of principal executive offices)                             (Zip code)




Registrant's telephone number including area code: (403) 777-9070



<PAGE>


Item 2.  Acquisition or disposition of assets

         On June 12, 1996 Venture Seismic Ltd. ("Venture") completed the
         acquisition of 100% of the common shares of Boone Geophysical, Inc.
         ("Boone") from Lynn Boone, the sole shareholder of Boone. The
         acquisition consists of the operating assets of Boone, a seismic
         acquisition contractor operating in the south eastern states. The
         acquired operation will be used by Venture to expand its geographic
         area of operations into the southern United States.

         The purchase price, which totalled $1,750,000, consisted of (a) an
         initial payment of $1,150,000 in cash, (b) the issuance of 93,633
         Common Shares of the Company valued at $400,000, and (c) $200,000
         payable in cash or Common Shares of the Company, at the election of the
         Company, to be paid in four installments over the next twelve months.

         The Company also entered into two year employment agreements with two
         officers of Boone providing for aggregate compensation of $125,000 per
         annum.

         The cash purchase consideration was provided from the existing cash
         balances of Venture at the time of closing.

         The excess ($1,510,377) of the purchase price over the fair value of
         the net assets acquired was recognized as goodwill and will be
         amortized over ten years, resulting in charges to operations of
         approximately $150,000 per annum.

Item 7.  Financial Statements, Pro Forma Financial Information and Exhibits

         a)  Financial statements of Business acquired

                  Boone Geophysical,  Inc. balance sheet as at December 31, 1995
                  and the  statements  of income and retained  earnings and cash
                  flows  for the  year  then  ended  and  Independent  Auditors'
                  Report.

         b)  Pro Forma Financial Information

                  1)Pro forma condensed  consolidated  balance sheet (unaudited)
                    as at March 31, 1996.

                  2)Pro forma consolidated income statement (unaudited)combining
                    the income  statement  of Venture  Seismic Ltd. for the year
                    ended September 30, 1995 with the income  statement of Boone
                    Geophysical, Inc. for the year ended December 31, 1995.

                                      -2-
<PAGE>


                  3)Pro forma interim consolidated income statement  (unaudited)
                    combining the income  statement of Venture  Seismic Ltd. for
                    the  six  months  ended  March  31,  1996  with  the  income
                    statement  of Boone  Geophysical,  Inc. for the three months
                    ended March 31, 1996.

Exhibits

c) 10.20 Securities Purchase Agreement dated as of May 31, 1996 between Venture
                      Seismic Ltd., Boone Geophysical, Inc. and Lynn Boone.


Signature

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 hereto duly authorized.


Venture Seismic Ltd.




/S/ GREGORY B. WIEBE
- --------------------
By: Gregory B. Wiebe
      Chief Financial Officer

June 26, 1996

                                      -3-
<PAGE>










                              FINANCIAL STATEMENTS




                            BOONE GEOPHYSICAL, INC.




                               DECEMBER 31, 1995


                                       F-1

<PAGE>

                                AUDITORS' REPORT





 To the Board of Directors of
 VENTURE SEISMIC LTD.


 We have audited the balance sheet of BOONE GEOPHYSICAL, INC. as at
 December 31, 1995 and the related statement of income and retained
 earnings and cash flows for the year then ended. These financial
 statements are the responsibility of the company's management. Our
 responsibility is to express an opinion on these financial
 statements based on our audit.

 We conducted our audit in accordance with generally accepted
 auditing standards. Those standards require that we plan and
 perform an audit to obtain reasonable assurance about whether the
 financial statements are free of material misstatement. An audit
 includes examining, on a test basis, evidence supporting the
 amounts and disclosures in the financial statements. An audit also
 includes assessing the accounting principles used and significant
 estimates made by management, as well as evaluating the overall
 financial statement presentation. We believe our audit provides a
 reasonable basis for our opinion.

 In our opinion, the financial statements referred to above present
 fairly, in all material respects, the financial position of the
 company as at December 31, 1995 and the results of its operations
 and the changes in its financial position for the year then ended
 in accordance with generally accepted accounting principles.




 Calgary, Canada                                      /s/ Ernst & Young 
 May 31, 1996                                         Chartered Accountants


                                       F-2

<PAGE>

                                       BOONE GEOPHYSICAL, INC.

                                            BALANCE SHEET
                                          (in U.S. Dollars)

      
 As at December 31


                                                                   1995
                                                                    $
                                                          ------------------
 ASSETS
 CURRENT
 Cash                                                               46,017
 Accounts receivable [note 5]                                      309,500
 Due from related parties [note 2]                                 150,472
 Work in progress                                                   51,340
                                                          ------------------- 
                                                                   557,329

 CAPITAL ASSETS [NOTES 3, 4 AND 5]                                 290,186
                                                          ------------------
                                                                   847,515
                                                          ==================

 LIABILITIES AND SHAREHOLDER'S EQUITY
 CURRENT
 Bank loan [note 4]                                                 25,000
 Accounts payable and accrued liabilities                          183,302
 Current portion of long term debt [note 5]                         53,471
                                                          ------------------
                                                                   261,773
                                                          ------------------

 LONG TERM DEBT [NOTE 5]                                            76,664
                                                          ------------------
 DEFERRED INCOME TAXES                                              60,000
                                                          ------------------
 SHAREHOLDER'S EQUITY
 Share capital [note 6]                                              1,000
 Retained earnings                                                 448,078
                                                          ------------------
                                                                   449,078
                                                          ------------------
                                                                   847,515
                                                           ==================


 See accompanying notes
                                       F-3

<PAGE>


                             BOONE GEOPHYSICAL, INC.

                    STATEMENT OF INCOME AND RETAINED EARNINGS
                                (in U.S. Dollars)


Year ended December 31, 1995                      




                                                       -----------------
REVENUE                                                    $  2,970,901
DIRECT EXPENSES                                               2,470,133
                                                       -----------------
GROSS MARGIN                                                    500,768

Interest income                                                   6,743
                                                       -----------------
                                                                507,511
                                                       -----------------
OTHER EXPENSES
General and administrative                                      213,410
Depreciation                                                     94,809
Interest [note 7]                                                11,413
                                                       -----------------
                                                                319,632
                                                       -----------------

INCOME BEFORE INCOME TAXES                                      187,879
INCOME TAXES [NOTE 8]
         Current                                                  5,000
         Deferred                                                60,000
                                                       -----------------
                                                                 65,000
                                                       -----------------
NET INCOME FOR THE YEAR                                         122,879
RETAINED EARNINGS, BEGINNING OF YEAR                            325,199
                                                       -----------------
RETAINED EARNINGS, END OF YEAR                                  448,078
                                                       =================

 See accompanying notes

                                       F-4

<PAGE>




                             BOONE GEOPHYSICAL, INC.

                             STATEMENT OF CASH FLOWS
                                (in U.S. Dollars)





 Year ended December 31, 1995




                                                       -----------------
 OPERATING ACTIVITIES
 Net income for the year                                    $   122,879
 Items not involving cash
     Depreciation                                                94,809
     Deferred income taxes                                       60,000
 Net change in non-cash working capital [note 9]                 64,779
                                                      ------------------
                                                                342,467
                                                       -----------------
 FINANCING ACTIVITIES
 Decrease in long term debt                                     (38,305)
 Advance to related parties                                    (160,542)
 Increase in bank loan                                           25,000
                                                       -----------------
                                                               (173,847)
                                                       -----------------
 INVESTING ACTIVITIES
 Purchase of fixed assets                                      (136,295)

 INCREASE IN CASH FOR THE YEAR                                    32,325
 CASH, BEGINNING OF YEAR                                          13,692
                                                      ------------------
 CASH, END OF YEAR                                                46,017
                                                       =================

 See accompanying notes

                                       F-5

<PAGE>
                             BOONE GEOPHYSICAL, INC.

                          NOTES TO FINANCIAL STATEMENTS
                                (in U.S. Dollars)


December 31, 1995







              1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES


              These financial statements of the company are expressed in U.S.
              dollars and have been prepared in accordance with accounting
              principles generally accepted in Canada, consistently applied.
              Because a precise determination of many assets and liabilities is
              dependent upon future events, the preparation of financial
              statements for a period necessarily involves the use of estimates
              and approximations which have been made using careful judgment.
              The financial statements have, in management's opinion, been
              properly prepared within reasonable limits of materiality and
              within the framework of the significant accounting policies
              summarized below.


              CAPITAL ASSETS


              Capital assets are recorded at cost. Depreciation is provided on
              the following bases to amortize the cost of the capital assets
              over their estimated economic useful lives as follows: 



                Buildings                  3%            Straight-line         
                Recording Equipment        30%           Declining Balance
                Automotive Equipment       20%           Declining Balance
                Furniture and Fixtures     20%           Declining Balance

              When capital assets are sold or scrapped, the cost of the asset
              and related accumulated depreciation are removed from the accounts
              and any resulting gain or loss on disposal is reflected in income.


              REVENUE RECOGNITION


              The company recognizes revenue on contracts using the
              percentage-of- completion method, primarily based on contract
              costs incurred to date compared with total estimated contract
              costs to be incurred. Changes to total estimated contract costs
              and full provision for losses, if any, are recognized in the
              period they are determined. 


              INCOME TAXES


              The company follows the deferral method of tax allocation in
              accounting for income taxes under which the income tax provision
              is based on the income reported in the accounts. Under this
              method, provision is made for income taxes deferred principally as
              a result of the company adopting the cash method for income tax
              purposes compared to the accrual method for accounting purposes.

              2. DUE FROM RELATED PARTIES

              Advances to related parties represent funds advanced to the
              shareholder. These advances are non-interest bearing and have no
              fixed terms of repayment.


                                       F-6
<PAGE>

                             BOONE GEOPHYSICAL, INC.

                          NOTES TO FINANCIAL STATEMENTS
                                (in U.S. Dollars)

December 31, 1995


  3. CAPITAL ASSETS



                                                             ACCUMULATED
                                           COST              DEPRECIATION
                                             $                 $
                                       -----------------------------------
  Land                                       12,000           --
  Buildings                                  59,674            28,129
  Recording Equipment                     1,524,702         1,375,084
  Automotive Equipment                      351,292           260,353
  Furniture And Fixtures                     21,088            15,004
                                       ------------------------------------
                                           1,968,756         1,678,570
                                        -----------------------------------

 NET BOOK VALUE                                        290,186
                                        ===================================


 4. BANK LOAN


 The bank loan is repayable on demand with interest payable at bank
 prime plus 2%. Certain equipment has been pledged as collateral
 for the bank loan.
 

 5. LONG TERM DEBT


                                                                      1995
                                    
                                                                      $

                                                                      ----------
                                                                      
Bank loan, bearing interest at bank prime plus 2%,          
         repayable in monthly installments of                         
         $2,647, comprised of principal and interest.
                                                                       62,852


Automotive equipment loans, bearing interest at rates varying
         from 9.5% to 10.15%, repayable in monthly instalments
         and maturing at varying terms from September 1997 to
         August 1998. The related automotive equipment has been
         pledged as collateral.
                                                                       42,559


Note payable, bearing interest at 7%, repayable in              
         monthly instalments of $904, comprised of principal           24,724
         and interest.                                                ----------
                                                                      130,135

                                                                       53,471
     Less current portion                                             ----------
                                                                       76,664
                                                                      ==========

     Land and buildings of the company, a general security agreement on
     the assets of the company and a personal guarantee provided by the
     shareholder have been pledged as collateral for the bank loan. 
                                                                 
                                       F-7
<PAGE>

                             BOONE GEOPHYSICAL, INC.

                          NOTES TO FINANCIAL STATEMENTS
                                (in U.S. Dollars)


December 31, 1995
          

              PRINCIPAL REPAYMENTS ARE AS FOLLOWS:



                                          $
                                        -------------

              1996                         53,471

              1997                         55,307

              1998                         21,357
                                        -------------   
                                           130,135
                                        =============

              6. SHARE CAPITAL


              AUTHORIZED


              The company's authorized share capital consists of 1,000 shares
              without par value.
 
              ISSUED
                                   
                                                          COMMON

                                             --------------------------------
                                                  NUMBER         AMOUNT
                                                                    $
                                             --------------    --------------  
                                                                                
                                                     1,000           1,000

              7. INTEREST EXPENSE



                                                                    1995
                                                                    $
                                                            ------------------
                                                                         53
              SHORT-TERM BANK INDEBTEDNESS                           11,360
              LONG-TERM DEBT                                             
                                                            ------------------
                                                                     11,413
                                                            ==================

                                      F-8

<PAGE>
                             BOONE GEOPHYSICAL, INC.

                         NOTES TO FINANCIAL STATEMENTS
                                (in U.S. Dollars)


December 31, 1995



8. INCOME TAXES

Income tax expense varies from the amounts that would be computed
by applying the combined U.S. Federal and state income tax rate
due to the following differences: 


                                                                   1995
                                                                   $
                                                          ------------------

Corporate tax rate                                                     34 % 

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

Provision for income taxes at                                   
 statutory tax rate                                                63,900

Increase (decrease) in income taxes due to:                         
 Small business deduction                                          (6,450)
 Other                                                              7,550
                                                          ------------------
                                                                   65,000
                                                          ==================


 9. NET CHANGE IN NON-CASH WORKING CAPITAL




                                                                   1995
                                                                   $
                                                          ------------------

 Accounts receivable                                              (85,278) 


 Work in progress                                                 (51,340)

 Prepaid expenses and deposits                                     25,000


 Accounts payable and accrued liabilities                         176,397
                                                          ------------------
                                                                   64,779
                                                          ==================

                                                               

                                          F-9

<PAGE>
                             BOONE GEOPHYSICAL, INC.

                          NOTES TO FINANCIAL STATEMENTS
                                (in U.S. Dollars)


December 31, 1995






10.  UNITED STATES ACCOUNTING PRINCIPLES


The company paid interest of $11,413 in the year ended December
 31, 1995.

The deferred tax liability is comprised of the following:
     

                                                                  1995
                                                                  $

                                                               ----------------

Accounts receivable                                               105,000


Work in progress                                                   17,000

Accounts payable and accrued liabilities                          (62,000)
                                                               ----------------
                                                                   60,000
                                                               ================

The company has three significant customers which accounted for
approximately 59% of the company's revenue during the year ended
December 31, 1995.

                                                                              
                                         F-10
<PAGE>

                             BOONE GEOPHYSICAL, INC.

                          NOTES TO FINANCIAL STATEMENTS
                                (in U.S. Dollars)


December 31, 1995

 Approximately 84% of accounts receivable were represented by two
 customers at December 31, 1995 of which one of these customers is
 one of the significant customers mentioned above.

 
 11. SUBSEQUENT EVENTS

 Subsequent to December 31, 1995, all of the company's outstanding
 shares were acquired by Venture Seismic Ltd. ("Venture") for total
 consideration of $1,750,000 consisting of i) an initial payment of
 $1,150,000 in cash, ii) the issuance of 93,633 common shares of
 venture valued at $400,000, and iii) $200,000 payable in cash or
 common shares of Venture, to be paid in four instalments over the
 next twelve months. 

 12. COMPARATIVE FIGURES


 These financial statements have been prepared for purposes of
 filing with Venture Seismic Ltd.'s Form 8-k hence comparative
 figures have not been presented.     


                                       F-11

<PAGE>
ERNST & YOUNG


                              VENTURE SEISMIC LTD.
                         Pro Forma Financial Information
                                   (Unaudited)



 The following unaudited pro forma financial information has been prepared
giving effect to the acquisition of Boone Geophysical, Inc. ("Boone"), for
purposes of the pro forma consolidated balance sheet as if the transaction had
occurred March 31, 1996, for purposes of the pro forma consolidated statement of
income for the year ended September 30, 1995, as if the transaction had occurred
October 1, 1994 and for purposes of the pro forma consolidated income statement
for the period ended March 31, 1996, as if the transaction had occurred October
1, 1995.

 The acquisition of Boone has been accounted for as a purchase. The excess of
the purchase price over the fair value of the net assets acquired was recognized
as goodwill and is being amortized over ten years.

 The pro forma financial information is not necessarily indicative of the
results of operations or of the financial position which would have been
attained had the acquisition been consumated at any of the foregoing dates or
which may be attained in the future. The pro forma financial information should
be read in conjunction with the historical consolidated financial statements of
Venture Seismic Ltd. and the historical financial statements of Boone
Geophysical, Inc.


                                       F-12
<PAGE>

Venture Seismic Ltd. and Boone Geophysical, Inc.

                                    PRO FORMA CONSOLIDATED
                                         BALANCE SHEET
                                     As at March 31, 1996
                                          (Unaudited)

<TABLE>

<S>                                <C>            <C>               <C>              <C>
                                   Venture         Boone                               Pro Forma

                                   March 31,       March 31,           Pro Forma       Balance
                                   1996            1996                Adjustments     Sheet
                                      $               $                     $               $
                                   ------------    ------------      -------------  -------------
   ASSETS
   Current assets
       Cash                         1,489,623       205,068          (c)   (155,068)    239,623

                                                                     (a)    (50,000)

                                                                     (a) (1,250,000)

       Accounts receivable          7,442,994       383,009          (c)   (383,009)   7,442,994

       Other receivables              120,971            --                    --        120,971
       Due from related parties         7,334       157,588          (c)   (157,588)       7,334

       Work in progress               809,307        42,000          (c)    (42,000)     809,307

       Prepaid expenses and           285,754            --                    --        285,754
       deposits
                                   ------------    -----------                      -------------
                                    10,155,983      787,665                            8,905,983

   Advances to shareholders             22,002           --                    --         22,002

   Fixed assets                      7,377,903       283,753         (b)   (44,130)     7,617,526

   Intangible assets                        --            --         (a) 1,510,377      1,510,377
                                   ------------    -----------                     ---------------

                                    17,555,888     1,071,418                           18,055,888
                                   ============    ============                    ===============

   LIABILITIES AND
   SHAREHOLDERS' EQUITY

   Current liabilities
       Bank indebtedness               440,000        --                    --              440,000
       Accounts payable and
       accrued                       5,385,440       284,879         (c)   (284,879)      5,385,440
        liabilities
       Income taxes payable             76,444         80,000        (c)    (80,000)         76,444

       Current portion of long term
         debt                          825,075         60,955        (c)    (60,955)        825,075

                                   --------------- ----------------                      --------------
                                     6,726,959        425,834                              6,726,959
                                   --------------- ----------------                      --------------
   Long term debt                    1,993,931         62,098        (c)    (62,098)       1,993,931

                                   --------------- ----------------                      --------------
   Deferred income taxes               587,855         33,000        (c)    (33,000)         587,855

                                   --------------- ----------------                      --------------
   SHAREHOLDERS'
   EQUITY
   Share capital                     6,630,866          1,000        (a)     (1,000)        7,130,866

                                                                     (a)    500,000

   Retained earnings                 1,531,353        549,486        (a)   (549,486)        1,531,353
   Cummulative translation
   adjustment                           84,924           --                    --              84,924
                                   --------------- ----------------                      --------------
                                     8,247,143        550,486                               8,747,143
                                   --------------- ----------------                      --------------
                                    17,555,888      1,071,418                              18,055,888
                                   =============== ================                      ===============
</TABLE>

   See accompanying notes
                                    F-13
<PAGE>
   Venture Seismic Ltd. and Boone Geophysical, Inc.

                          PRO FORMA CONSOLIDATED
                            STATEMENT OF INCOME
                   For the year ended September 30, 1995
                                (Unaudited)

<TABLE>
 <S>                              <C>             <C>                   <C>              <C>
                                   Venture         Boone
                                   Year ended      Year ended                            Pro Forma
                                   September       December              Pro Forma       Income
                                   30, 1995        31, 1995              Adjustments     Statement
                                    $               $                     $               $
                                  -------------    --------------       ------------    ----------------
   Revenue                          9,458,452       2,970,901                             12,429,353
   Direct expenses                  6,713,181       2,470,133                              9,183,314
                                  -------------    --------------                       ----------------
   Gross margin                     2,745,271         500,768                              3,246,039
   Interest and other income           27,976           6,743                                 34,719
                                  -------------    --------------                       ----------------
                                    2,773,247         507,511                              3,280,758
                                  -------------    --------------                       ----------------
  Expenses
       General and administrative     825,193         213,410 (e)            18,000        1,056,603

       Depreciation and
         amortization                 901,896          94,809 (d)           150,000        1,146,705

       Interest                       290,115          11,413                                301,528
                                  -------------    --------------                       ----------------
                                    2,017,204         319,632                              2,504,836
                                  -------------    --------------                       ----------------
   Income before income taxes
                                      756,043         187,879                                775,922
                                  -------------    --------------                       ----------------
   Income taxes
       Current                        174,317           5,000                                179,317
       Deferred                       145,420          60,000                                205,420
                                  -------------    --------------                       ----------------
                                      319,737          65,000                                384,737
                                  -------------    --------------                       ----------------
   Net income                         436,306         122,879                                391,185
                                  =============    ==============                       ================
</TABLE>
   See accompanying notes
                                      F-14
<PAGE>
              Venture Seismic Ltd. and Boone Geophysical, Inc.

                         PRO FORMA INTERIM CONSOLIDATED
                               STATEMENT OF INCOME
                     For the six months ended March 31, 1996
                                   (Unaudited)

<TABLE>

<S>                                 <C>             <C>                   <C>             <C>      
                                     Venture         Boone
                                     Six months      Three months                          Pro Forma
                                     ended March     ended March           Pro Forma       Income
                                     31, 1996        31, 1996              Adjustments     Statement
                                         $               $                     $               $
                                    -------------   -------------         ------------     ------------
    Revenue                            7,464,286      808,129                               8,272,415

    Direct expenses                    5,516,233      572,924                               6,089,157
                                     -------------   -------------                          ------------
    Gross margin                       1,948,053      235,205                               2,183,258
    Interest and other income             81,265        1,185                                  82,450
                                     -------------   -------------                          ------------
                                       2,029,318      236,390                               2,265,708
                                     -------------   --------------                         -------------
    Expenses
        General and administrative       631,667       60,113 (e)            4,500            696,280
                                                                      
        Depreciation and                 577,615       20,954 (d)           37,500            636,069
          amortization                                                
        Interest                         157,255          916                                 158,171
                                     -------------    --------------                       -------------
                                       1,366,537       81,983                               1,490,520
                                     -------------    --------------                       -------------
    Income before income taxes
                                         662,781      154,407                                 775,188
                                     --------------   --------------                       --------------
    Income taxes
        Current                          143,980       80,000                                 223,980
        Deferred                         146,990      (27,000)                                119,990
                                     ---------------   --------------                      --------------
                                         290,970       53,000                                 343,970
                                      --------------   --------------                      --------------
    Net income                           371,811       101,407                                431,218
                                      ==============   ==============                      ===============

</TABLE>

                                       F-15

<PAGE>
              Venture Seismic Ltd. and Boone Geophysical, Inc.

                     NOTES TO PRO FORMA FINANCIAL STATEMENTS
                                   (Unaudited)



              The following pro forma adjustments are reflected in the proforma
              consolidated balance sheet as at March 31, 1996 and in the pro
              forma consolidated statement of income and the pro forma interim
              consolidated statement of income.

               a)   Effective  June 1, 1996  Venture  Seismic  Ltd.  ("Venture")
                    acquired Boone  Geophysical,  Inc. for an aggregate purchase
                    price  of  $1,800,000,  consisting  of  $1,250,000  in cash,
                    $500,000 of Venture  common  shares and $50,000 of estimated
                    direct  acquisition  costs.  The assigned  fair value of net
                    assets acquired is:


                                                                $
                                                       ------------------


 Current assets                                                50,000
 Fixed assets                                                 239,623
                                                       ------------------
                                                              289,623
 Excess of cost over net tangible
 assets acquired, assigned to goodwill                      1,510,377
                                                       ------------------
                                                            1,800,000
                                                       ==================

               b)   Adjustment to reflect the  disposition  of land and building
                    prior to the acquisition June 1, 1996.

               c)   Adjustments to reflect the  assumption of all assets,  other
                    than fixed assets and $50,000 in cash,  and all  liabilities
                    by the vendor.

               d)   Adjustment to reflect the amortization of goodwill resulting
                    from the acquisition.

               e)   Adjustment  to reflect the  leasing of office and  warehouse
                    facilities from the Vendor.


                                       F-16




Exhibit 10.20
                                                 
                          SECURITIES PURCHASE AGREEMENT


This Securities Purchase Agreement (the "AGREEMENT") is made and entered into on
the 31st day of May, 1996 between LYNN BOONE (the "SECURITYHOLDER"), being the
owner of all of the issued and outstanding shares of capital stock of BOONE
GEOPHYSICAL, INC., a Texas corporation ("BOONE"), and VENTURE SEISMIC LTD., an
Alberta corporation (the "BUYER").

The Securityholder collectively owns all of the issued and outstanding shares of
capital stock of Boone (the "SHARES"), with the Securityholder owning the number
and type of Shares set forth in Exhibit A hereto. The Buyer desires to purchase
from the Securityholder, and the Securityholder desires to sell to the Buyer,
all of the Shares in accordance with the provisions of this Agreement.
References in this Agreement to "SECTION A" refer to a section in Appendix A
hereto.

NOW THEREFORE, intending to be legally bound hereby, the parties hereto agree as
follows:

1. SALE AND PURCHASE OF THE SHARES. Subject to the terms and conditions of this
Agreement and on the basis of and in reliance upon the representations,
warranties, covenants and agreements set forth herein, on the Closing Date (as
defined in Section 2(a) hereof) the Securityholder shall sell to the Buyer and
the Buyer shall purchase from the Securityholder all of the Shares owned by the
Securityholder in exchange for a total purchase price of $1,750,000.00,
determined and payable as follows:

         (a)      $1,150,000.00 by cash, certified cheque or solicitor's trust
                  cheque or cheques, allocated to the Securityholder hereto,
                  delivered at the Closing (as defined in Section 2(a) hereof)
                  (the "CASH CONSIDERATION");

         (b)      $400,000.00 by issuance of 93,633 common shares of the Buyer
                  (the "VSL SHARES") to the Securityholder, which shares shall
                  be delivered at the Closing (as defined in Section 2(a)
                  hereof) in the manner provided in Section 2(b) hereof;

         (c)      $200,000.00 in accordance with the following schedule:

        DATE OF PAYMENT                         AMOUNT AND METHOD OF PAYMENT

       (i)      September 1, 1996                  $50,000.00 cash
       (ii)     December 1, 1996                   $50,000.00 in VSL Shares
       (iii)    March 1, 1997                      $50,000.00 cash
       (iv)     June 1, 1997                       $50,000.00 in VSL Shares,

                  with the above number of the VSL Shares to be delivered at the
                  payment dates described above to the Securityholder in the
                  manner provided in Section 2(b) hereof, all subject to Section
                  3 for post-closing adjustments to such purchase price.
                  Notwithstanding anything herein contained in this Section
                  1(c), the Buyer shall have the option to pay cash to the
                  Securityholder in lieu of the VSL Shares described in Section
                  1 (c) (ii) or (iv), as the case may be. In the event the Buyer
                  elects to pay such amounts by issuing VSL Shares, the number
                  of VSL Shares to be issued to the Securityholder shall be
                  determined by dividing the respective amounts by the average
                  closing price per Buyer common share on the


<PAGE>
                                        2

                  Nasdaq National Market for ten (10) consecutive trading days
                  ending on the date immediately preceding the date on which the
                  payment in VSL Shares is to be made.

2.       CLOSING.

     (a) The  closing  (the  "CLOSING")  of the  sale  and  purchase  of  Shares
described  in  Section  1  hereof  shall  take  place  at  the  offices  of  the
Securityholder's  solicitors,  Hal R. Ridley,  commencing  at 10:00 a.m.,  local
time,  on the  later of (i) May 31,  1996,  or (ii) the 6th  business  day after
notice from the Buyer of satisfaction of the  conditions(s)  precedent set forth
in  Sections  7.1-7.6.  The date on which the Closing  takes place is  sometimes
referred to herein as the "CLOSING DATE". The transactions  contemplated by this
agreement  shall be  effective  as of May 31,  1996 (the  "EFFECTIVE  DATE") and
during the  interim  period  from the  Effective  Date to the  Closing  Date the
Securityholder  shall operate Boone for the account of the Buyer and shall carry
on business in the normal course during such time.

     (b) At the Closing, the Securityholder shall deliver to the Buyer, free and
clear  of all  security  interests,  pledges,  liens,  transfer  and  stamp  tax
obligations,  encumbrances,  claims and other charges thereon of every kind, the
certificates for the Shares to be sold by the Securityholder in negotiable form,
duly endorsed in blank, or with separate stock transfer powers attached  thereto
and signed in blank,  in exchange for (i) the Cash  Consideration,  and (ii) the
delivery  by the  Buyer to the  Securityholder  of the VSL  Shares  pursuant  to
Section 1(b) hereof.

     (c) At the Closing,  the  Securityholder  shall make available to the Buyer
the written resignations of all the directors and officers of Boone effective as
of the Closing  Date except for such  directors  and officers as the Buyer shall
designate in writing,  and shall cause to be made available to the Buyer and any
continuing  directors and officers of Boone (the  "POST-CLOSING  BOONE DIRECTORS
AND OFFICERS") all minute books, stock record books, books of account, corporate
seals,  leases,  contracts,  agreements,  securities,  bank,  checking and money
market accounts,  other  investments,  deposits,  customer and subscriber lists,
files and other  documents,  instruments and papers belonging to Boone and shall
cause full  possession  and control of all of the assets and properties of every
kind and nature,  tangible and intangible,  of Boone and of all other things and
matters  pertaining to the operation of the business of Boone to be  transferred
and delivered to the post- Closing Boone directors and officers. At the Closing,
the Securityholder  shall also deliver to the Buyer, and the Buyer shall deliver
to the  Securityholder,  the agreements,  certificates and other instruments and
documents referred to in Sections 7 and 8 hereof, respectively.

     (d) After the  Closing,  the Buyer  shall make all  agreements,  documents,
information and other items referred to in Section 2(c) hereof  available to the
Securityholder for inspection,  in each case upon reasonable prior notice to the
Buyer,  during normal  business hours, at no expense to the Buyer and only for a
proper purpose,  including without limitation the use thereof in connection with
(i) the  Securityholder's  review of the  Closing  Balance  Sheet (as defined in
Section 3(a) hereof),  (ii) the  indemnification  and other  obligations  of the
Securityholder  hereunder  and (iii) the payment of any  liability  to any third
party which is owed by the Securityholder.



<PAGE>
                                        3

3.       POST-CLOSING ADJUSTMENT TO PURCHASE PRICE.

     (a) As soon as reasonably  practical  following  (but not more than 60 days
after)  the  Closing   Date,   the  Buyer  shall  prepare  and  deliver  to  the
Securityholder  a balance sheet of Boone as of the Effective  Date (the "CLOSING
BALANCE SHEET").  The Closing Balance Sheet shall be prepared in accordance with
U.S. generally accepted accounting principles applied on a consistent basis with
the  preparation  of the December 31, 1995 Balance  Sheet (as defined in Section
A.2.4 hereof),  to the extent such methods and criteria are consistent with U.S.
generally accepted accounting  principles,  consistently applied,  provided that
the Closing  Balance Sheet shall in any event reflect (i) the  assumption by the
Securityholder   of  all   liabilities   of  Boone  and  the   transfer  to  the
Securityholder  of all  accounts  receivable  of  Boone  incurred  prior  to the
Effective  Date as set forth in Section 12.1 hereof,  (ii) the  distribution  by
Boone,  immediately prior to Closing, of land and buildings located at 874A Wire
Road, Huntsville, Texas to Securityholder or his nominee, (iii) the distribution
by Boone,  immediately prior to the Closing,  to the  Securityholder of all bank
accounts of Boone and cash in excess of  $50,000.00,  and (iv) the  distribution
(if made) by Boone,  immediately prior to the Closing,  to the Securityholder of
key man life insurance  policies and any cash value  associated  therewith.  All
expenses  incurred in connection  with the  preparation  of the Closing  Balance
Sheet shall be the responsibility of the Buyer.

     (b) The Closing  Balance  Sheet  shall  become  final and binding  upon the
parties unless within 10 days following its submittal to the Securityholder, the
Securityholder  notifies the Buyer of his objection thereto, which objection may
only be that the Closing  Balance Sheet was not properly  prepared under Section
3(a) hereof. If the  Securityholder  does so notify the Buyer of their objection
to the Closing Balance Sheet, the  Securityholder  and the Buyer shall negotiate
in good  faith to  resolve  any  differences.  If within 30 days  following  the
receipt  of such  notice  by the  Buyer  any of such  differences  have not been
resolved, they shall be resolved by Ernst & Young, Calgary, Alberta, the Buyer's
independent  chartered  accountants,  whose  opinion  thereon and the  resulting
Closing Balance Sheet shall be final, binding and not subject to any appeal. The
fees and expenses of Ernst & Young shall be paid one-half by the  Securityholder
and one-half by the Buyer.

     (c) Within 10 days following the final determination of the Closing Balance
Sheet,  either (i) the Buyer shall pay to the Securityholder the amount by which
the assets  (other  than fixed  assets)  minus the  liabilities  is in excess of
$50,000.00 on such Closing Balance Sheet or (ii) the Securityholder shall pay to
the Buyer the amount by which the assets  (other  than fixed  assets)  minus the
liabilities is less than $50,000.00 on such Closing Balance Sheet.

     (d) Nothing in this Section 3 shall preclude any party from exercising,  or
shall  adversely  affect or otherwise  limit in any respect the exercise of, any
right or remedy  available  to it, him or her  hereunder  or  otherwise  for any
misrepresentation or breach of warranty hereunder, but neither the Buyer nor the
Securityholder  shall have any right to dispute the Closing Balance Sheet or any
portion  thereof once it has been finally  determined in accordance with Section
3(b) hereof.

 4. EXAMINATION OF BUSINESS AND ASSETS. For the purpose of allowing the Buyer to
 analyze the  business  and affairs of Boone,  all  information  relative to the
 Shares,  the  business  of  Boone  and  the  assets  in the  possession  of the
 Securityholder or Boone to which the Securityholder or Boone have access shall

<PAGE>
                                        4

 be open to  inspection  by the Buyer,  the Buyer's  financial  advisors and the
 Buyer's Alberta and Texas  solicitors,  Burstall Ward and Thompson & Knight, at
 any  reasonable  time up to and  including  two (2) business  days prior to the
 Closing Date, as the Buyer may deem reasonably  necessary or advisable in order
 to  ensure  that  each  of  the  representations,   warranties,  covenants  and
 agreements of the  Securityholder  and Boone herein contained shall be true and
 correct on the Closing Date (the "DUE DILIGENCE").

 5.  REPRESENTATIONS  AND WARRANTIES OF THE  SECURITYHOLDER.  The Securityholder
 represents  and  warrants to the Buyer as set forth in Sections  A.1 and A.2 of
 Appendix  A  hereto,  which  Sections  are  incorporated  in this  Section 5 by
 reference and are deemed to be a part of this  Agreement.  The  representations
 and  warranties  shall be  effective on the  Effective  Date and on the Closing
 Date.

 6.  REPRESENTATIONS  AND  WARRANTIES  OF THE BUYER.  The Buyer  represents  and
 warrants  to the  Securityholder  as set forth in  Section  A.3 of  Appendix  A
 hereto,  which  Section is  incorporated  in this Section 6 by reference and is
 deemed to be a part of this Agreement. The representations and warranties shall
 be effective on the Effective Date and on the Closing Date.

 7.  CONDITIONS  PRECEDENT TO THE BUYER'S  OBLIGATIONS.  All  obligations of the
 Buyer under this Agreement are subject to the fulfilment or satisfaction, prior
 to or at the Closing, of each of the following conditions precedent:

 7.1 APPROVAL OF DUE  DILIGENCE.  The Buyer shall have  received  the  requisite
 approval from its board of directors of the  transactions  contemplated by this
 Agreement and of the Due Diligence.

 7.2 PERFORMANCE BY THE SECURITYHOLDER.  The Securityholder shall have performed
 and complied with all agreements  and conditions  required by this Agreement to
 be performed or complied with by them prior to or at the Closing.

 7.3 EMPLOYMENT AGREEMENTS,  NON-COMPETITION  AGREEMENTS. Each of Lynn Boone and
 Donna Boone shall have executed and delivered an employment  agreement with the
 Buyer  providing for a twenty five month  employment term and the Buyer and the
 Securityholder  shall have  entered into a  non-competition  agreement on terms
 satisfactory to such parties,  which will include  appropriate  non-competition
 provisions for a minimum of 3 years after the Closing Date.

 7.4  REGULATORY  APPROVALS.  The  Buyer  shall  have  obtained  all  applicable
 governmental,  regulatory, stock exchange and contractual approvals to complete
 the transactions contemplated by this Agreement.

 7.5 RELEASES.  The Securityholder and any other officers and directors of Boone
 shall  have  executed  and  delivered  releases  in  favour  of  Boone in their
 capacities as directors, officers, shareholders and employees of Boone, in such
 form as required by the Buyer.

 7.6  APPROVAL  OF  COUNSEL;   CORPORATE  MATTERS.  All  actions,   proceedings,
 resolutions,  instruments and documents required to carry out this Agreement or
 incidental  hereto and all other related legal matters shall have been approved
 on the Closing Date by Burstall Ward, counsel for the Buyer, in the exercise of
 their reasonable judgment.  The Securityholder shall also have delivered to the
 Buyer such other documents, instruments,  certifications and further assurances
 as such counsel for the Buyer may reasonably require.

<PAGE>
                                        5

 8. CONDITIONS PRECEDENT TO THE SECURITYHOLDER'S OBLIGATIONS. All obligations of
 the  Securityholder  under this  Agreement  are  subject to the  fulfilment  or
 satisfaction,  prior to or at the Closing, of each of the following  conditions
 precedent:

 8.1 PERFORMANCE BY THE BUYER.  The Buyer shall have performed and complied with
 all  agreements  and  conditions  required by this Agreement to be performed or
 complied with by the Buyer prior to or at the Closing.

 8.2  EMPLOYMENT  AGREEMENTS.  The Buyer shall have  executed  and  delivered an
 employment  agreement  with  Lynn  Boone  providing  for a  twenty  five  month
 employment term.

 8.3  APPROVAL  OF  COUNSEL;   CORPORATE  MATTERS.  All  actions,   proceedings,
 resolutions,  instruments and documents required to carry out this Agreement or
 incidental  hereto and all other related legal matters shall have been approved
 on the Closing Date by Hal R. Ridley,  counsel for the  Securityholder,  in the
 exercise of his reasonable judgment. The Buyer shall also have delivered to the
 Securityholder  such other documents,  instruments,  certifications and further
 assurances as such counsel for the Securityholder may reasonably require.

 9. INDEMNIFICATION.

 9.1  INDEMNIFICATION  BY THE  SECURITYHOLDER.  From and after the Closing,  the
 Securityholder  shall reimburse,  indemnify and hold harmless the Buyer and its
 affiliates  (including  without  limitation  Boone)  (each such  person and its
 successors  and assigns is referred to herein as a "BUYER  INDEMNIFIED  PARTY")
 against and in respect of any and all  damages,  losses,  settlement  payments,
 deficiencies,  liabilities, costs and expenses suffered, sustained, incurred or
 required to be paid by any Buyer  Indemnified  Party  because of or that result
 from,  relate to or arise out of the  untruth,  inaccuracy  or breach  of,  any
 representation  or warranty of the  Securityholder  contained in Section A.1 of
 this  Agreement  and  any  and  all  actions,   suits,   claims,   proceedings,
 investigations, demands, assessments, audits, fines, judgments, costs and other
 expenses  (including  without  limitation  reasonable  legal fees and expenses)
 incident to any of the foregoing or to the enforcement of this Section 9.1.

 9.2 FURTHER INDEMNIFICATION BY THE SECURITYHOLDER.  From and after the Closing,
 the  Securityholder  shall  reimburse,  indemnify any Buyer  Indemnified  Party
 against and in respect of:

 (a)  any  and  all  damages,   losses,   settlement   payments,   deficiencies,
 liabilities, costs and expenses suffered, sustained, incurred or required to be
 paid by any Buyer  Indemnified  Party because of or that result from, relate to
 or arise out of:

     (i)      the untruth, inaccuracy or breach of, or the failure
              to fulfil, any representation, warranty (other than a
              representation or warranty contained in Section A.1
              of this Agreement), agreement, covenant or statement
              of any Securityholder contained in this Agreement or
              in any certificate or other writing furnished to the
              Buyer by or on behalf of any Securityholder or Boone
              in connection herewith;

     (ii)     any claim by any former shareholder of Boone
              involving the transactions contemplated hereby or any
              prior transaction involving any shares of capital
              stock of Boone or any predecessor corporation
              (including, without limitation, claims

<PAGE>
                                        6

            relating to any and all decisions and determinations made with 
            respect to amounts or allocations of purchase price or other 
            consideration); or

(iii)   the assertion  against any Buyer  Indemnified  Party of any liability or
        obligation  relating to or arising out of the  business,  operations  or
        assets of Boone prior to the Closing Date or the actions or omissions of
        Boone's directors, officers, shareholders,  employees or agents prior to
        the  Closing  Date,   including  without  limitation  any  liability  or
        obligation  relating  to, and any claim which  arises out of or is based
        upon, (1) negligence,  (2) strict liability, (3) any Environmental Claim
        (as defined in Section A.2.19 hereof) or which otherwise  relates to, or
        involves a claim,  liability  or  obligation  which  arises out of or is
        based upon, any  Environmental Law (as defined in Section A.2.19 hereof)
        to the extent that such liability or obligation relates to or arises out
        of, in whole or in part,  any activity  occurring,  condition  existing,
        omission to act or other matter  existing prior to the Closing Date, (4)
        any other  statute,  rule or  regulation  or (5) any  express or implied
        representation, warranty, agreement or guarantee made by or on behalf of
        Boone,  or  alleged  to have been made by or on behalf of Boone,  or any
        liability  or  obligation  which is imposed or asserted to be imposed on
        Boone or any  successor  corporation  by operation of law, in connection
        with any product designed, used, rented, sold, manufactured,  shipped or
        installed by or on behalf of Boone,  or for any service  performed by or
        on behalf of Boone,  including without  limitation any acts,  omissions,
        workmanship or material performed or sold by Boone, in any case prior to
        the Closing Date and  irrespective  of the date that any claim,  suit or
        other  cause  of  action  related  to any of the  foregoing  is filed or
        otherwise  instituted  against Boone or any successor  corporation (with
        all  references to Boone in this Section  9.2(a)(iii)  also deemed to be
        references to any predecessor in business of Boone;  provided,  however,
        that the foregoing  shall not apply to  liabilities  and  obligations of
        Boone described in Section A.2.7(a) hereof; and

    (b)      any and all actions, suits, claims, proceedings,
             investigations, demands, assessments, audits, fines,
             judgments, costs and other expenses (including without
             limitation reasonable legal fees and expenses) incident to any
             of the foregoing or to the enforcement of this Section 9.2.

  9.3 INDEMNIFICATION BY THE BUYER. From and after the Closing,  the Buyer shall
  reimburse,  indemnify and hold harmless the Securityholder (the Securityholder
  and his or her heirs, administrators,  personal representatives and assigns is
  referred to herein as a  "SECURITYHOLDER  INDEMNIFIED  PARTY")  against and in
  respect of:

   (c)      any and all damages, losses, settlement payments,
            deficiencies, liabilities, costs and expenses suffered,
            sustained, incurred or required to be paid by such
            Securityholder Indemnified Party because of or that result
            from, relate to or arise out of:

            (i)      the untruth, inaccuracy or breach of, or the failure
                     to fulfil, any representation, warranty, agreement,
                     covenant or statement of the Buyer contained in this
                     Agreement or in any certificate or other writing
                     furnished to the Securityholder by or on behalf of
                     the Buyer in connection herewith; or

<PAGE>
                                        7

            (ii)     the assertion against any Securityholder Indemnified
                     Party of any liability or obligation relating to or
                     arising out of the business, operations or assets of
                     Boone or any Subsidiary after the Closing Date or the
                     actions or omissions of Boone's directors, officers,
                     shareholders, employees or agents (other than
                     Securityholder) after the Closing Date; and

   (d)      any and all actions, suits, claims, proceedings,
            investigations, demands, assessments, audits, fines,
            judgments, costs and other expenses (including without
            limitation reasonable legal fees and expenses) incident to any
            of the foregoing or to the enforcement of this Section 9.3.

9.4      LIMITATIONS ON LIABILITY.

  (e)     Except as  otherwise  provided  in Section  9.6 hereof and except that
          this limitation shall not apply to any indemnification  claims arising
          under or with  respect  to  Sections  9.1 and  10(a)  hereof or to any
          purchase price  adjustments  made in accordance with Section 3 hereof,
          the Securityholder  shall not be liable to any Buyer Indemnified Party
          under  Section  9.2 for any  misrepresentation  or breach of  warranty
          until the  aggregate  amount for which they would  otherwise  (but for
          this provision) be liable to any or all Buyer Indemnified  Parties for
          all such  misrepresentations  and breaches of warranty  exceeds in the
          aggregate the sum (the "DEDUCTIBLE") of $5,000.00

  (f)      Except as otherwise provided in Section 9.6 hereof and except
           that this limitation shall not apply to any indemnification
           claim arising under or with respect to Section 10(b) hereof,
           the Buyer shall not be liable to any Securityholder
           Indemnified Party under Section 9.3 hereof for any
           misrepresentation or breach of warranty until the aggregate
           amount for which it would otherwise (but for this provision)
           be liable to any or all Securityholder Indemnified Parties for
           all such misrepresentations and breaches of warranty exceeds
           in the aggregate the Deductible.

  9.5 SURVIVAL OF REPRESENTATIONS AND WARRANTIES.  Except as provided in Section
  9.6  hereof,  the   representations  and  warranties  given  or  made  by  the
  Securityholder  or the Buyer in this Agreement or in any  certificate or other
  writing  furnished  in  connection  herewith  shall  survive the Closing for a
  period of two years after the Closing Date and shall thereafter  terminate and
  be of no further  force or effect,  except  that (a) all  representations  and
  warranties  relating  to Taxes and Tax  Returns  (each as  defined  in Section
  A.2.10  hereof)  shall  survive the  Closing for the period of the  applicable
  statutes  of  limitation  plus any  extensions  or  waivers  thereof,  (b) all
  representations  and warranties set forth in Sections A.1 and A.2.19 and 10(a)
  hereof shall survive the Closing without limitation and (c) any representation
  or warranty as to which a claim  (including  without  limitation  a contingent
  claim) shall have been asserted  during the survival  period shall continue in
  effect with  respect to such claim  until such claim  shall have been  finally
  resolved or settled.  Notwithstanding  any  investigation  or audit  conducted
  before or after the Closing  Date or the decision of any party to complete the
  Closing,  each party shall be entitled  to rely upon the  representations  and
  warranties of the other party or parties set forth herein.

  9.6  EXCEPTIONS  TO  LIMITATIONS.  Nothing  herein shall be deemed to limit or
  restrict  in any  manner any rights or  remedies  which any Buyer  Indemnified
  Party  has,  or might  have,  at law,  in equity  or  otherwise,  against  the
  Securityholder,  or which any  Securityholder  Indemnified  Party has or might
  have

<PAGE>
                                        8

  against the Buyer, based on any willful  misrepresentation,  willful breach of
  warranty or willful failure to fulfil any agreement or covenant.

  9.7   PAYMENT  OF   INDEMNIFICATION   OBLIGATIONS.   In  the  event  that  any
  Securityholder or the Buyer is required to make any payment under this Section
  9,  such  party  shall  promptly  pay  the  Buyer  Indemnified  Party  or  the
  Securityholder  Indemnified  Party,  as the case may be,  the  amount  of such
  indemnity  obligation.  If there should be a dispute as to such  amount,  such
  Securityholder  or the Buyer, as the case may be, shall  nevertheless pay when
  due such  portion,  if any,  of the  obligation  as shall  not be  subject  to
  dispute.  The  difference,  if  any,  between  the  amount  of the  obligation
  ultimately  determined  as  properly  payable  under  this  Section  9 and the
  portion, if any,  theretofore paid shall bear interest for the period from the
  date  the  amount  was  demanded  by  the  Buyer   Indemnified  Party  or  the
  Securityholder  Indemnified  Party, as the case may be, until payment in full,
  payable on demand,  at the fluctuating rate per annum which at all times shall
  be two  percentage  points in excess of the rate which is  publicly  announced
  from  time to  time  by The  Toronto-Dominion  Bank  or  such  other  Canadian
  chartered bank as its "PRIME RATE".

  9.8  INDEMNIFICATION  PROCEDURE.  All  claims for  indemnification  under this
  Section 9 shall be asserted and resolved as follows:

     (g)  In the  event  that  any  claim  or  demand  for  which a  party  (the
          "INDEMNIFYING  PARTY") would be liable to any Buyer  Indemnified Party
          or Securityholder  Indemnified Party (in either case, the "INDEMNIFIED
          PARTY")  hereunder is asserted against an Indemnified Party by a third
          party, the Indemnified  Party shall with reasonable  promptness notify
          the Indemnifying Party of such claim or demand,  specifying the nature
          of such claim or demand and the amount or the estimated amount thereof
          to the extent then feasible (which estimate shall not be conclusive of
          the final  amount of such claim or demand) (the "CLAIM  NOTICE").  The
          Indemnifying  Party  shall have 10 days from the  receipt of the Claim
          Notice  (the  "NOTICE  PERIOD")  to notify the  Indemnified  Party (i)
          whether  or not  the  Indemnifying  Party  disputes  the  Indemnifying
          Party's  liability to the Indemnified  Party hereunder with respect to
          such  claim or  demand  and (ii) if the  Indemnifying  Party  does not
          dispute such liability, whether or not the Indemnifying Party desires,
          at the sole cost and  expense  of the  Indemnifying  Party,  to defend
          against such claim or demand,  provided that the Indemnified  Party is
          hereby  authorized (but not obligated)  prior to and during the Notice
          Period  to file  any  motion,  answer  or  other  pleading  which  the
          Indemnified  Party shall deem  necessary or appropriate to protect the
          Indemnified  Party's  interests.  In the event  that the  Indemnifying
          Party notifies the Indemnified Party within the Notice Period that the
          Indemnifying   Party  does  not  dispute  the   Indemnifying   Party's
          obligation   to  indemnify   hereunder   and  desires  to  defend  the
          Indemnified   Party  against  such  claim  or  demand  and  except  as
          hereinafter  provided,  the Indemnifying Party shall have the right to
          defend by appropriate proceedings, which proceedings shall be promptly
          settled or prosecuted by the Indemnifying Party to a final conclusion.
          If the  Indemnified  Party desires to participate in, but not control,
          any such defense or settlement the Indemnified  Party may do so at the
          Indemnified  Party's sole cost and expense.  If the Indemnifying Party
          elects  not to defend  the  Indemnified  Party  against  such claim or
          demand,  whether by not giving the Indemnified  Party timely notice as
          provided  above or  otherwise,  then the  Indemnified  Party,  without
          waiving  any rights  against  the  Indemnifying  Party,  may settle or
          defend  against  any  such  claim  in  the  Indemnified  Party's  sole
          discretion and, if it is ultimately  determined that the  Indemnifying
          Party  is  responsible   therefor  under  this  Section  8,  then  the
          Indemnified Party shall be entitled to
<PAGE>

                                        9

           recover from the Indemnifying Party the amount of any
           settlement or judgment and all indemnifiable costs and
           expenses of the Indemnified Party with respect thereto,
           including without limitation interest as provided in Section
           9.7 hereof.

     (h)  The  Buyer  Indemnified  Party  shall  have the right to  control  the
          defense of any such claim or demand and the amount of any  judgment or
          settlement and the  reasonable  costs and expenses of defense shall be
          included   as  part  of  the   indemnification   obligations   of  the
          Indemnifying  Party hereunder.  If the Buyer  Indemnified Party should
          elect to exercise such right,  the  Indemnifying  Party shall have the
          right to participate in, but not control, the defense of such claim or
          demand at the sole cost and expense of the Indemnifying Party.

     (i)  In the event the  Indemnified  Party  should have a claim  against the
          Indemnifying  Party hereunder which does not involve a claim or demand
          being asserted against or sought to be collected by a third party, the
          Indemnified Party shall with reasonable promptness send a Claim Notice
          with  respect  to  such  claim  to  the  Indemnifying  Party.  If  the
          Indemnifying  Party does not notify the  Indemnified  Party within the
          Notice Period that the  Indemnifying  Party  disputes such claim,  the
          amount of such claim shall be  conclusively  deemed a liability of the
          Indemnifying Party hereunder.

     (j)  Nothing herein shall be deemed to prevent the  Indemnified  Party from
          making a claim hereunder for potential or contingent claims or demands
          provided the Claim  Notice sets forth the specific  basis for any such
          potential or  contingent  claim or demand to the extent then  feasible
          and the Indemnified Party has reasonable  grounds to believe that such
          a claim or demand may be made.

     (k)  The Indemnified  Party's  failure to give reasonably  prompt notice to
          the Indemnifying Party of any actual,  threatened or possible claim or
          demand  which  may give rise to a right of  indemnification  hereunder
          shall not relieve the  Indemnifying  Party of any liability  which the
          Indemnifying  Party  may  have to the  Indemnified  Party  unless  the
          failure to give such notice  materially  and adversely  prejudiced the
          Indemnifying Party.

10.      NO BROKERS' OR FINDERS' FEES.

     (a)  The  Securityholder  represents  and  warrants  that all  discussions,
          activities  and  negotiations  relative  to this  Agreement  have been
          carried on by him directly  without the intervention of any person who
          may be entitled to any  brokerage or finder's fee or other  commission
          in respect hereof or the consummation of the transactions contemplated
          hereby  (other  than as  disclosed  to the  Buyer in the case of a fee
          payable by the Securityholder to Jack Clements) and the Securityholder
          agrees to indemnify  and hold harmless the Buyer  Indemnified  Parties
          against  any  and  all  claims,   losses,   liabilities  and  expenses
          (including  without  limitation  reasonable  legal fees and  expenses)
          which may be asserted  against or incurred or paid by any of them as a
          result of the  Securityholder's  dealings,  arrangements or agreements
          with any such person.

     (b)  The Buyer represents and warrants that all discussions, activities and
          negotiations  relative to this  Agreement  have been carried on by the
          Buyer and its  affiliates  directly  without the  intervention  of any
          person who may be entitled to any brokerage or finder's fee or other

<PAGE>

                                       10

          commission in respect hereof or the consummation of the
          transactions contemplated hereby and the Buyer agrees to
          indemnify and hold harmless the Securityholder Indemnified
          Parties against any and all claims, losses, liabilities and
          expenses (including without limitation reasonable legal fees
          and expenses) which may be asserted against or incurred or
          paid by the Securityholder as a result of the Buyer's
          dealings, arrangements or agreements with any such person.

11.      COVENANT NOT TO COMPETE.

     (a)  From the date of this  Agreement  until the third  anniversary  of the
          Closing,  the Securityholder  agrees that he will not, anywhere in the
          world,  unless acting for the Buyer or its affiliates or in accordance
          with the Buyer's prior written  consent,  (i) (directly or indirectly)
          own, manage,  operate,  join,  control,  finance or participate in the
          ownership,  management,  operation,  control  or  financing  of, or be
          connected  as  an  officer,  director,  employee,   principal,  agent,
          representative,  consultant,  investor, owner, partner, manager, joint
          venturer  or  otherwise  with,  or permit his name to be used by or in
          connection  with, any business or enterprise  engaged  anywhere in the
          world in geographical seismograph acquisition or during the three-year
          non-compete  period  stated  above or at the time of its  termination,
          (ii)  call  on  or  solicit  any  person  who  or  which  during  such
          non-compete  period  is,  or  within  18  months  prior  to  any  such
          solicitation  had  been,  a  customer  of Boone  with  respect  to any
          business  covered by clause (i) above or (iii) solicit the  employment
          of any  person  who during  such  non-compete  period is, or within 18
          months prior to any such solicitation had been, employed by Boone on a
          full or part-time basis.

     (b)  The  Securityholder  acknowledges  that  (i)  the  provisions  of this
          Section 11 are  reasonable  and  necessary  to protect the  legitimate
          interests  of  the  Buyer  and  its  affiliates   (including   without
          limitation  Boone),  (ii) any violation of this Section 11 will result
          in  irreparable  injury  to the Buyer  and its  affiliates  (including
          without  limitation  Boone)  and  that  damages  at law  would  not be
          reasonable or adequate  compensation  to the Buyer and its  affiliates
          (including  without  limitation Boone) for a violation of this Section
          11  and  (iii)  the  Buyer  and  its  affiliates   (including  without
          limitation  Boone)  shall be entitled to have the  provisions  of this
          Section  11   specifically   enforced  by  preliminary  and  permanent
          injunctive  relief without the necessity of proving actual damages and
          without  posting  bond or other  security  as well as to an  equitable
          accounting of all earnings,  profits and other benefits arising out of
          any  violation  of  this  Section  11,  including  without  limitation
          estimated  future  earnings.  In the event that the provisions of this
          Section  11  should  ever be  deemed  or held by a court of  competent
          jurisdiction  to exceed  the time,  geographic,  product  or any other
          limitations permitted by applicable law, then such provisions shall be
          deemed reformed to the maximum permitted by applicable law.

     (c)  The  Buyer  and the  Securityholder  intend  to and do  hereby  confer
          jurisdiction  to enforce the  covenants  set forth in this  Section 11
          upon the courts of any jurisdiction  within the geographical  scope of
          such  covenants.  In  addition  to  Section  12.7  hereof  and  not in
          limitation  thereof,  if  the  courts  of  any  one or  more  of  such
          jurisdictions  hold such covenants  unenforceable in whole or in part,
          it is the intention of the Buyer and each  covenanting  Securityholder
          that such  determination  not bar or in any way  adversely  affect the
          right of the Buyer and its affiliates  (including  without  limitation
          Boone) to  equitable  relief and  remedies  hereunder in courts of any
          other jurisdiction as to breaches or

<PAGE>
                                       11

          violations of this Section 11, such covenants being, for this
          purpose, severable into diverse and independent covenants.

12.      MISCELLANEOUS.

 12.1  ASSUMPTION  OF  BOONE  LIABILITIES,  ACCOUNTS  RECEIVABLE.  All  accounts
 receivable of Boone  uncollected  as of the Effective Date shall be assigned by
 Boone to the  Securityholder  for  collection  and all  liabilities of Boone as
 specified in Exhibit B hereto shall be assumed and paid by the Securityholder.

 12.2 EXPENSES.  The Buyer and the Securityholder  shall pay its or his expenses
 incidental to the preparation hereof and, through the Closing, the carrying out
 of the provisions hereof and the consummation of the transactions  contemplated
 hereby.  The parties  hereto  shall pay their own  expenses  incidental  to the
 carrying out of the provisions  hereof after the Closing,  and no such expenses
 of the Securityholder,  including without limitation the Securityholder's legal
 fees and  expenses,  shall be paid by or out of any of the assets or properties
 of the Buyer or Boone.

 12.3 CONTENTS OF AGREEMENT; PARTIES IN INTEREST; ETC. This Agreement sets forth
 the entire understanding of the parties hereto with respect to the transactions
 contemplated  hereby. This Agreement shall not be amended or modified except by
 a written  instrument duly executed by each of the parties hereto.  Any and all
 previous  agreements and understandings  between or among the parties regarding
 the subject  matter  hereof,  whether  written or oral,  are superseded by this
 Agreement.

 12.4  ASSIGNMENT  AND BINDING  EFFECT.  All of the terms and provisions of this
 Agreement  shall be binding upon and enure to the benefit of and be enforceable
 by the heirs, administrators, personal representatives,  successors and assigns
 of the parties hereto.

 12.5 WAIVER.  Any term or provision of this Agreement may be waived at any time
 by the party  entitled  to the  benefit  thereof by a written  instrument  duly
 executed by such party.

 12.6 NOTICES. Any notice, request, claim, demand, waiver, consent,  approval or
 other  communication  which is  required  or  permitted  hereunder  shall be in
 writing and shall be deemed given if delivered  personally or sent by telegram,
 by registered or certified  mail,  postage  prepaid,  or by recognized  courier
 service, as follows:

         If to the Buyer, to:

         Venture Seismic Ltd.
         3110 80th Avenue S.E.
         Calgary, Alberta
         T2C 1T3
         Telecopier: (403) 777-9080
         Attention:  Brian W. Kozun


<PAGE>
                                       12

         With a required copy to:

         Burstall Ward
         Barristers & Solicitors
         1800, 800 5th Avenue S.W.
         Calgary, Alberta
         T2P 3T6
         Telecopier: (403) 266-6016
         Attention:  Scott W. Sangster

         If to the Securityholder, to:

         Boone Geophysical, Inc.
         Post Office Drawer 1535
         874A Wire Road
         Huntsville, Texas 77347-1535
         Telecopier:
         Attention: President

         With a required copy to:

         Hal R. Ridley
         Attorney at Law
         1224 University Avenue
         Huntsville, Texas 77340
         Telecopier: (409) 295-3788

 or to such other  address as the person to whom  notice is to be given may have
 specified in a notice duly given to the sender as provided herein. Such notice,
 request, claim, demand, waiver, consent,  approval or other communication shall
 be deemed to have been given as of the date so delivered,  telegraphed,  mailed
 or dispatched and, if given by any other means, shall be deemed given only when
 actually received by the addressees.

 12.7 ALBERTA LAW TO GOVERN;  CONSENT TO  JURISDICTION.  This Agreement shall be
 governed by and  interpreted  and enforced in  accordance  with the laws of the
 Province of Alberta.  Each of the Buyer and the Securityholder  irrevocably and
 unconditionally  (a) agrees  that any suit,  action or other  legal  proceeding
 (collectively, "SUIT") instituted by the Securityholder and arising out of this
 Agreement shall be brought and adjudicated only in the Province of Alberta, (b)
 agrees that any Suit  instituted  by the Buyer  arising  out of this  Agreement
 shall be brought and  adjudicated  only in the  Province  of  Alberta,  and (c)
 waives and agrees not to assert by way of motion,  as a defense or otherwise in
 any such Suit, any claim that it, he or she is not subject to the  jurisdiction
 of the above courts, that such Suit is brought in an inconvenient forum or that
 the venue of such Suit is  improper.  Each of the Buyer and the  Securityholder
 also  irrevocably and  unconditionally  consents to the service of any process,
 pleadings,  notices  or  other  papers  in a  manner  permitted  by the  notice
 provisions of Section 12.6 hereof.

 12.8 NO BENEFIT TO  OTHERS.  The  representations,  warranties,  covenants  and
 agreements  contained in this Agreement are for the sole benefit of the parties
 hereto  and,  in the case of  Section 9 hereof,  the  other  Buyer  Indemnified
 Parties   and   Securityholder    Indemnified   Parties,   and   their   heirs,
 administrators, personal

<PAGE>

                                       13

 representatives,  successors  and  assigns,  and they shall not be construed as
 conferring any rights on any other persons.

 12.9 HEADINGS; GENDER; "PERSON"; "DOLLARS"; "$". All section headings contained
 in this Agreement are for  convenience of reference only, do not form a part of
 this  Agreement  and shall not affect in any way the meaning or  interpretation
 hereof.  Words used herein,  regardless  of the number and gender  specifically
 used,  shall be deemed and construed to include any other  number,  singular or
 plural,  and any other gender,  masculine,  feminine or neuter,  as the context
 requires. Any reference to a "PERSON" herein shall include an individual, firm,
 corporation,  partnership,  trust, governmental authority or body, association,
 unincorporated   organization  or  any  other  entity.   Any  reference  to  an
 "AFFILIATE"  or an  "AFFILIATED  CORPORATION"  herein  shall  have the  meaning
 ascribed to such terms in the Business  Corporations Act (Alberta),  as amended
 from time to time.  Any reference to "DOLLARS" or "$" shall refer to dollars of
 the United States of America.

 12.10 TAX  TREATMENT.  The Buyer  makes no  representations  regarding  the tax
 consequences to the  Securityholder  of the  transactions  contemplated by this
 Agreement.  The Securityholder  acknowledges that they have been advised of the
 tax  consequences of the  transactions  contemplated by this Agreement by their
 own tax  advisers,  and  that  they  are  relying  on  their  tax  advisers  in
 determining   their   respective  tax   consequences  in  connection  with  the
 transactions contemplated in this Agreement.

 12.11 EXHIBITS; APPENDIX; SCHEDULES. The Exhibits hereto, Appendix A hereto and
 the Schedules  referred to herein and therein are intended to be and hereby are
 specifically made a part of this Agreement.

 12.12  SEVERABILITY.  If any  provision of this  Agreement  or the  application
 thereof to any person or circumstance is held invalid or  unenforceable  in any
 jurisdiction,  the remainder  hereof,  and the application of such provision to
 such person or  circumstance  in any other  jurisdiction or to other persons or
 circumstances in any jurisdiction,  shall not be affected thereby,  and to this
 end the provisions of this Agreement shall be severable.

<PAGE>
                                       14


 12.13 COUNTERPARTS; TELECOPIER EXECUTION. This Agreement may be executed in any
 number of counterparts  and any party hereto may execute any such  counterpart,
 each of which when executed and delivered shall be deemed to be an original and
 all of which  counterparts taken together shall constitute but one and the same
 instrument.  This Agreement shall become binding when one or more  counterparts
 taken together shall have been executed and delivered by the parties.  It shall
 not be necessary in making proof of this Agreement or any counterpart hereof to
 produce or account for any of the other counterparts. Execution and delivery of
 counterparts  of this  Agreement by telecopier by any party shall be binding on
 all parties to this Agreement.

 IN WITNESS  WHEREOF the parties  hereto have duly executed this Agreement as of
 the date first written.


                                             VENTURE SEISMIC LTD.


                                             Per:  /s/ Brian W. Kozun
                                                  ---------------------------
                                                   Name:  Brian W. Kozun
                                                   Title:   President


                                             THE SECURITYHOLDER


 /s/ Gina L. McCarver                         /s/ Lynn Boone
- -----------------------------                --------------------------------
WITNESS                                                  LYNN BOONE

<PAGE>

                                  APPENDIX A-1

                                   APPENDIX A

                         REPRESENTATIONS AND WARRANTIES

 A.1 REPRESENTATIONS  AND WARRANTIES OF THE  SECURITYHOLDER.  The Securityholder
 hereby represents and warrants to the Buyer as follows:

 A.1.1 SHARE OWNERSHIP;  AUTHORITY.  The  Securityholder  is the lawful owner of
 record and beneficially of the number of Shares set beside the Securityholder's
 name in column A of Exhibit A hereto, free and clear of all security interests,
 pledges, liens, encumbrances, claims and other charges and restrictions thereon
 of every kind,  including  without  limitation any  agreements,  subscriptions,
 options,  warrants,  calls,  commitments or rights (contingent or otherwise) of
 any  character  granting to any person any interest in or right to acquire from
 the  Securityholder at any time, or upon the happening of any stated event, any
 Shares owned by the  Securityholder.  The  Securityholder has full right, power
 and authority to execute,  deliver and perform this  Agreement.  This Agreement
 has been duly  executed and  delivered by the  Securityholder.  This  Agreement
 constitutes  the legal,  valid and  binding  obligation  of the  Securityholder
 enforceable against the Securityholder in accordance with its terms.

 A.1.2 VALIDITY OF CONTEMPLATED TRANSACTIONS;  ETC. The execution,  delivery and
 performance hereof by the Securityholder will not contravene or violate (a) any
 law,  rule or  regulation  to which the  Securityholder  is  subject or (b) any
 judgment,  order,  writ,  injunction  or decree  of any  court,  arbitrator  or
 governmental or regulatory  official,  body or authority which is applicable to
 the Securityholder;  nor will such execution,  delivery or performance violate,
 be in  conflict  with or result in the breach  (with or  without  the giving of
 notice or lapse of time,  or both) of any term,  condition or provision  of, or
 require the consent of any other party to, any contract, commitment, agreement,
 lease, license, permit, authorization, document or other understanding, oral or
 written,  to or by which the  Securityholder  is a party or otherwise  bound or
 affected. No authorization,  approval or consent, and no registration or filing
 with, any governmental or regulatory official, body or authority is required in
 connection  with  the  execution,   delivery  and  performance  hereof  by  the
 Securityholder.

 A.1.3 NO CLAIMS AGAINST BOONE. The Securityholder has no claim, either accrued,
 absolute,  contingent  or  otherwise  and whether  known or  unknown,  fixed or
 unfixed, choate or inchoate, liquidated or unliquidated,  secured or unsecured,
 against  Boone for any reason  and, in the case of a  Securityholder  who is an
 employee,  for wages and benefits  owing in the ordinary  course of business of
 Boone.

 A.1.4 THE VSL SHARES, RESTRICTIONS ON TRANSFER, INVESTMENT REPRESENTATIONS. The
 Securityholder  acknowledges  that  the  execution  of  this  Agreement  by the
 Securityholder  and the  delivery to the  Securityholder  of the VSL Shares has
 been or will be made in reliance  upon,  and is  conditioned  on, the following
 representations,    warranties,    acknowledgments   and   covenants   of   the
 Securityholder:

     (a)  The Securityholder has such knowledge and experience in financial, tax
          and  business  matters  that he is fully  capable  of  evaluating  the
          relative  risks and  merits of the  obligations  incurred  under  this
          Agreement  and making an informed  decision with respect  hereto.  The
          Securityholder is completely  familiar with the business,  operations,
          assets,  properties,  prospects and financial  condition of the Buyer;
          and the Securityholder  hereby waives and relinquishes any duty on the
          part of the Buyer to disclose  any matter,  fact or thing  relating to
          the business, operations,  assets, properties,  prospects or financial
          condition of the Buyer now known or hereafter known by the Buyer.

<PAGE>

                                  APPENDIX A-2

     (b)  The  Securityholder  acknowledges a thorough  familiarity with, and an
          understanding  of, the definition of "ACCREDITED  INVESTOR" as defined
          in Rule 501(a) of  Regulation  D, as such Rule is  currently in effect
          and represents and warrants that the  Securityholder  is an accredited
          investor within the meaning of such definition.

     (c)  The  Securityholder  acknowledges  that he has not  received  from the
          Buyer  or  any  person  acting  on  the  Buyer's  behalf  any  general
          solicitation or public media advertisements.

     (d)  The Securityholder  acknowledges that the VSL Shares to be received by
          the Securityholder  under this Agreement will not have been registered
          under  the  Securities  Act of  1933,  as  amended  (the  "ACT"),  nor
          qualified under a prospectus  filed under the Securities Act (Alberta)
          nor have the VSL Shares been registered  under the securities or "BLUE
          SKY"  laws of any of the  United  States  or  Canada  or of any  other
          jurisdictions  and will be "RESTRICTED  SECURITIES" as defined in Rule
          144 under the Act (securities acquired from an issuer in a transaction
          not involving a public offering).

     (e)  The  Securityholder  represents and warrants to the Buyer that the VSL
          Shares  are not  being  acquired  with a view  to,  or for  resale  in
          connection  with, the distribution  thereof,  and understands that the
          effect of such representation and warranty is that the VSL Shares must
          be held by the Securityholder unless and until subsequently registered
          under the Act and applicable state and provincial  securities laws, or
          unless an exemption from such  registration or prospectus  requirement
          is available at the time of any proposed sale or other transfer.  Each
          Securityholder understands that Rule 144 under the Act requires, among
          other conditions, a two year holding period prior to the resale of the
          VSL Shares  without  having to satisfy the  registration  requirements
          under the Act and that there can be no assurance  that the  conditions
          of such Rule will be satisfied so as to allow any proposed sale.

     (f)  The  Securityholder  agrees  not  to  sell,  pledge,   hypothecate  or
          otherwise  transfer  any of the VSL Shares  received by him under this
          Agreement except or unless: (i) there is then in effect a registration
          statement  under the Act covering such proposed  disposition  and such
          disposition is made in accordance with such registration statement; or
          (ii) such Securityholder shall have notified the Buyer of the proposed
          disposition  and  shall  have  furnished  the  Buyer  with a  detailed
          statement of the circumstances  surrounding the proposed  disposition,
          and, if reasonably  requested by the Buyer, the  Securityholder  shall
          have  furnished  the Buyer  with an  opinion  of  counsel,  reasonably
          satisfactory  to the Buyer,  that such  disposition  will not  require
          registration of such the VSL Shares under the Act.

     (g)  The  certificates  representing  the VSL Shares to be issued  pursuant
          hereto will bear the following legend:

                   THE SHARES REPRESENTED BY THIS
                   CERTIFICATE HAVE BEEN ISSUED PURSUANT TO
                   A SECURITIES PURCHASE AGREEMENT DATED
                   AS OF May 31, 1996, WITH VENTURE SEISMIC
                   LTD.  SUCH SHARES HAVE NOT BEEN
                   REGISTERED UNDER THE SECURITIES ACT OF
                   1933 OR ANY APPLICABLE STATE OR

<PAGE>

                                  APPENDIX A-3

                   PROVINCIAL SECURITIES LAWS AND MAY NOT BE SOLD,
                   PLEDGED, HYPOTHECATED OR OTHERWISE TRANSFERRED IN THE
                   ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT FOR
                   SUCH SHARES UNDER THE SECURITIES ACT OF 1933 AND
                   APPLICABLE STATE OR PROVINCIAL SECURITIES LAWS,
                   UNLESS, IN THE OPINION, WHICH SHALL BE IN FORM AND
                   SUBSTANCE REASONABLY SATISFACTORY TO VENTURE SEISMIC
                   LTD., SUCH REGISTRATION IS NOT REQUIRED, OR UNLESS
                   VENTURE SEISMIC LTD. HAS DETERMINED TO PERMIT SUCH
                   TRANSFER WITHOUT THE PROVISION OF SUCH AN OPINION.

         Each Securityholder also understands that the Buyer will instruct its
         transfer agent to place a stop transfer notation in its records with
         respect to the certificates representing the VSL Shares.

     (h)  DISCLOSURE MATERIALS.  Each Securityholder  represents and warrants to
          the Buyer that he or it has received and had full  opportunity,  prior
          to the execution of this  Agreement to review  thoroughly  (along with
          counsel,  accountants  or  other  advisers)  a  copy  of  each  of the
          following  documents:  (i) the Buyer's  Prospectus  dated  November 6,
          1995;  (ii) Report on Form 10KSB for the fiscal  year ended  September
          30, 1995 and (iii) the Buyer's  reports on Form 10-QSB for the periods
          ended December 31, 1995 and March 31, 1996.

     (i)  ACCESS TO INFORMATION.  The  Securityholder  represents,  warrants and
          acknowledges that the Securityholder,  and the attorneys, accountants,
          representatives  and  agents  of  the   Securityholder,   have  had  a
          reasonable  time prior to the execution  hereof and  completion of the
          transactions contemplated hereby, to ask questions and receive answers
          concerning  the business and operations of the Buyer and to obtain any
          additional  information  necessary to make a fully  informed  decision
          with respect to the execution of this Agreement, and the investment in
          the VSL Shares effected hereby.

  A.2  FURTHER  REPRESENTATIONS  AND  WARRANTIES  OF  THE  SECURITYHOLDER.   The
  Securityholder hereby further represents and warrants to the Buyer as follows:

  A.2.1 CORPORATE  EXISTENCE.  Boone is a corporation  duly  organized,  validly
  existing and in good standing under the laws of the State of Texas, and it has
  all requisite  power and authority  and all  necessary  licenses,  permits and
  authorizations  to carry  on its  business  as it has  been  and is now  being
  conducted  and to own,  lease and operate the  properties  used in  connection
  therewith.  Boone is  qualified  as a  foreign  corporation  authorized  to do
  business  and  is  in  good  standing  in  each  jurisdiction  in  which  such
  qualification is required,  all of which  jurisdictions are listed on Schedule
  A.2.1 hereto.

  A.2.2 CAPITALIZATION.  The total authorized capital stock of Boone consists of
  1000  shares of common  stock,  of which  1000 of such  shares  are issued and
  outstanding  (all such  issued and  outstanding  shares  have been  previously
  defined as the  "SHARES").  All of the Shares  have been duly  authorized  and
  validly  issued,  are  fully  paid  and  non-assessable,  were not  issued  or
  transferred in violation of the terms of any agreement or other  understanding
  binding  upon Boone and were issued and  transferred  in  compliance  with all
  applicable charter documents of Boone and all applicable federal,  provincial,
  state and foreign securities

<PAGE>

                                  APPENDIX A-4

  laws, rules and regulations. There are no outstanding subscriptions,  options,
  warrants,  convertible securities,  calls,  commitments,  agreements or rights
  (contingent  or otherwise)  of any character to purchase or otherwise  acquire
  from Boone any shares of, or any  securities  convertible  into,  the  capital
  stock of Boone.  All  preemptive  rights with  respect to the  issuance of the
  Shares or any other capital shares of Boone have been complied with.

  A.2.3 SUBSIDIARIES; NO INTEREST IN OTHER ENTITIES. Boone owns no shares of any
  corporation and has no other ownership or other investment  interests,  either
  of record, beneficially or equitably, in any association,  partnership,  joint
  venture or legal entity,  except for bank,  checking and money market accounts
  and other cash equivalent investments.

  A.2.4  FINANCIAL  STATEMENTS.  The  Securityholder  has delivered to the Buyer
  prior to the date  hereof (a) the balance  sheets of Boone as of December  31,
  1993,  December 31, 1994 and  December  31, 1995 and the related  statement of
  operations,  shareholders' equity and cash flows for the 12-month periods then
  ended,  internally  prepared by Boone, and (b) the unaudited balance sheets as
  at, and  statements of income for the periods ended,  January 31,  February 29
  and March 31, 1996.  The  unaudited  balance sheet of Boone as of December 31,
  1995 shall be referred to as the  "DECEMBER 31, 1995 BALANCE  SHEET"  together
  with the statement of operations,  shareholders' equity and cash flows for the
  periods then ended. The foregoing  financial  statements shall collectively be
  referred to as the "FINANCIALS". Such Financials (including without limitation
  all notes,  comments,  schedules and supplemental data contained in or annexed
  to such statements),  correct and complete copies of all of which are attached
  hereto as Schedule  A.2.4,  are accurate,  complete and in accordance with the
  books and  records of Boone and  present  fairly the  financial  position  and
  assets and liabilities of Boone as of their  respective  dates and the results
  of their  operations  for the periods  then  ended,  in  conformity  with U.S.
  generally accepted accounting principles applied on a consistent basis.

  A.2.5  ACCOUNTS  RECEIVABLE.  All  accounts  receivable  of Boone  (a) are not
  subject to valid defenses, set-offs or counterclaims other than normal returns
  and allowances and (b) were generated only in the ordinary course of business.

  A.2.6  INVENTORY AND REVENUE  PRODUCING  EQUIPMENT.  All inventory and revenue
  producing equipment of Boone reflected on the December 31, 1995 Balance Sheet,
  and all inventory  and revenue  producing  equipment  owned by Boone as of the
  date hereof,  was  acquired and has been  maintained  in  accordance  with the
  regular  business  practices  of Boone,  consists  of items of a  quality  and
  quantity  useable,  saleable  or  rentable  in the  ordinary  course  of their
  businesses  consistent  with past practice,  and is valued in conformity  with
  generally  accepted  accounting  principles  applied on a consistent basis; no
  significant  amount  of such  inventory  or  revenue  producing  equipment  is
  obsolete.

  A.2.7 ABSENCE OF UNDISCLOSED LIABILITIES.

      (j)  Boone is not liable for or subject to any liability except for:

          (i)  those  liabilities  and  obligations  adequately  and  
               specifically disclosed  on  the  December  31,  1995  Balance
               Sheet  and  not heretofore paid or discharged;

          (ii) those liabilities and obligations  arising in the ordinary course
               of its business consistent with past practice under any contract,
               commitment or agreement

<PAGE>

                                  APPENDIX A-5

                           specifically disclosed on any Schedule to this
                           Appendix A or not required to be disclosed thereon
                           because of the term or amount involved or otherwise;
                           and

          (iii)those liabilities and obligations  incurred,  consistent with its
               past practice,  in the ordinary course of its business and either
               not required to be shown on the  December 31, 1995 Balance  Sheet
               or  arising  since  December  31,  1995,  which  liabilities  and
               obligations  in the  aggregate  are of a character  and magnitude
               consistent with its past practice.

For purposes of this Section A.2.7 and Section 8.1 hereof, the term
"LIABILITIES" shall include without limitation any direct or indirect liability,
indebtedness, guaranty, endorsement, claim, loss, damage, deficiency, cost,
expense, obligation or responsibility, either accrued, absolute, contingent or
otherwise and whether known or unknown, fixed or unfixed, choate or inchoate,
liquidated or unliquidated, secured or unsecured.

      (k)   Except as provided in Section A.2.18 hereof,  Boone does not provide
            or maintain,  and is not required under applicable law to provide or
            maintain,    for   their   employees   any   pension,    retirement,
            profit-sharing  or other plan or policy for the benefit of employees
            which is required to comply with, and Boone has no liabilities  with
            respect to itself or any other person under,  the federal  Employees
            Retirement Income Security Act of 1974 ("ERISA"), the Income Tax Act
            (Canada) (the "ITA"), the Unemployment Insurance Act (Canada) or the
            Canada  Pension  Plan  Act  (Canada).   Furthermore,  Boone  has  no
            liability for any dividends or distributions  to any  Securityholder
            and since  December  31,  1995 has not paid or  delivered  or become
            committed  to pay  or  deliver  any  dividend,  or  made  or  become
            committed to make any distribution or payment, to any shareholder in
            respect of its capital  shares or  redeemed,  purchased or otherwise
            acquired any of its capital shares.

A.2.8  EXISTING CONDITION.  Except as disclosed on Schedule A.2.8 hereto, since
December 31, 1995, Boone has not:

      (l)   sold, assigned or transferred any of its assets or properties except
            in  the  ordinary  course  of  its  business  consistent  with  past
            practice;

      (m)   created,  incurred, assumed or guaranteed any indebtedness for money
            borrowed or incurred any other  liabilities  exceeding  $5,000.00 in
            the aggregate  except for current  liabilities  incurred  consistent
            with past practice;

      (n)   suffered any damage,  destruction or loss, whether or not covered by
            insurance,  (i) materially and adversely affecting their businesses,
            operations,  assets,  properties  or  prospects  or (ii) of any item
            carried on Boone's books of account at more than $5,000.00;

      (o)   suffered any material  adverse  change in its business,  operations,
            assets, properties, prospects or condition (financial or otherwise);

      (p)   made any  capital  expenditure  or capital  addition  or  betterment
            except  for  such  as  may  be  involved  in  the  ordinary  repair,
            maintenance and replacement of its assets;


<PAGE>

                                  APPENDIX A-6

      (q)   increased the salaries or other compensation of, or made any advance
            (excluding advances for ordinary and necessary business expenses) or
            loan to, any of their  directors,  officers or employees,  or to any
            Securityholder,  or made any  increase in, or any addition to, other
            benefits to which any of its directors, officers or employees or any
            Securityholder may be entitled; or

      (r)   entered into any  transaction  other than in the ordinary  course of
            its business consistent with past practice.

Except as disclosed on Schedule A.2.8 hereto, since December 31, 1995, Boone has
not made or suffered any amendment to or termination of any material contract or
commitment (including without limitation all international contracts and
commitments) to which it is or was a party or by which it or any of its
properties are or were bound.

A.2.9   ASSETS AND PROPERTIES.

      (s)   Boone owns outright and has good,  valid and marketable title to all
            of its properties and assets,  real,  personal and mixed,  including
            without limitation all of the properties and assets reflected on the
            December 31, 1995 Balance Sheet and those  acquired  since  December
            31,  1995  (except in each case for  properties  and assets  sold or
            otherwise disposed of since December 31, 1995 in the ordinary course
            of its business  consistent with past  practice),  free and clear of
            all mortgages, liens, pledges, security interests,  charges, claims,
            restrictions  and other  encumbrances  and  defects  of title of any
            nature  whatsoever,  except liens for current  taxes not yet due and
            payable and items  disclosed on Schedule  A.2.9 hereto.  All leases,
            licenses,  permits and  authorizations  in any manner related to the
            assets,  properties or business of Boone and all other  instruments,
            documents  and  agreements  pursuant to which Boone has obtained the
            right to use any real or  personal  property  are in good  standing,
            valid and effective in accordance with their  respective  terms, and
            there  is  not  under  any  of  such  leases,   licenses,   permits,
            authorizations,  instruments,  documents or agreements  any existing
            default  or event  which with the giving of notice or lapse of time,
            or both, would constitute a default.

      (t)   All  facilities,   buildings,  vehicles,  equipment,  furniture  and
            fixtures,   leasehold  improvements  and  other  material  items  of
            tangible  personal  property  owned  or  used  by  Boone  is in good
            operating   condition  and  repair,   subject  to  normal  wear  and
            maintenance, are useable in the regular and ordinary course of their
            businesses and conform to all applicable  laws,  ordinances,  codes,
            rules and regulations relating thereto and to the construction, use,
            operation and maintenance thereof.

A.2.10 TAXES AND TAX RETURNS AND REPORTS. With respect to Boone (referred to in
this Section A.2.10 as the "COMPANY"), (a) all reports, returns, statements
(including without limitation estimated reports, returns or statements), and
other similar filings required to be filed on or before the Closing Date by the
Company (the "TAX RETURNS") with respect to any Taxes (as defined in this
Section A.2.10) have been timely filed with the appropriate governmental
agencies in all jurisdictions in which such Tax Returns are required to be
filed, and all such Tax Returns correctly reflect the liability of the Company
for Taxes for the periods, properties or events covered thereby, (b) all Taxes
payable with respect to the Tax Returns, and all Taxes accruable with respect to
events occurring prior to the Closing Date, whether disputed or not, and whether
or not shown on any Tax Return, will have been paid in full prior to the Closing
Date,

<PAGE>

                                  APPENDIX A-7

or an adequate accrual in accordance with generally accepted accounting
principles is provided with respect thereto on the Closing Balance Sheet, (c) no
deficiency in respect of any Taxes which has been assessed against any Company
remains unpaid and neither Boone nor any Securityholder has knowledge of any
unassessed Tax deficiencies or of any audits or investigations pending or
threatened against the Company with respect to any Taxes, (d) there is in effect
no extension for the filing of any Tax Return and the Company has extended or
waived the application of any statute of limitations of any jurisdiction
regarding the assessment or collection of any Tax, (e) no claim has ever been
made by any Tax authority in a jurisdiction in which the Company does not file
Tax Returns that it is or may be subject to taxation by that jurisdiction, (f)
there are no statutory liens for Taxes upon any asset of the Company except for
statutory liens for current Taxes not yet due, (g) no issues have been raised in
any examination by any Tax authority with respect to the Company which, by
application of similar principles, reasonably could be expected to result in a
proposed deficiency for any other period not so examined, (h) the Company is a
party to any Tax allocation or sharing agreement or otherwise under any
obligation to indemnify any person with respect to any Taxes, (i) the Company is
a party to any joint venture, partnership or other arrangement that is treated
as a partnership for income tax purposes, (j) there are no accounting method
changes or proposed accounting method changes of the Company that could give
rise to an adjustment under the ITA or under section 481 of the Internal Revenue
Code of 1986, as amended (the "CODE"), for periods after the Closing Date, (k)
there are no requests for rulings in respect of any Tax pending between the
Company and any Taxing authority, (l) since the date of its ownership by the
Securityholder, the Company has been a member of any affiliated group other than
the affiliated group of which Boone is the common parent and (m) the Company has
timely made all deposits required by law to be made with respect to employees'
withholding and other employment taxes.

For purposes of this Agreement, "TAXES" means any taxes, duties, assessments,
fees, levies or similar governmental charges, together with any interest,
penalties and additions to tax, imposed by any taxing authority, wherever
located (i.e. whether federal, provincial, state, local, municipal or foreign),
including without limitation all net income, gross income, gross receipts, net
receipts, sales, use, transfer, franchise, privilege, profits, social security,
disability, withholding, payroll, unemployment, employment,, workers'
compensation, excise, severance, property, windfall profits, value added, ad
valorem, occupation or any other similar governmental charge or imposition.

A.2.11 BOOKS OF ACCOUNT. The books of account of Boone reflect all of its items
of income and expense, and all of its assets and liabilities required to be
reflected therein, in accordance with generally accepted accounting principles.

A.2.12 LEGAL PROCEEDINGS; ETC. Except as disclosed on Schedule A.2.12, there are
no disputes, claims, actions, suits or proceedings (including without limitation
local zoning or building ordinance proceedings), arbitrations or investigations,
either administrative or judicial, pending or, to the knowledge of Boone or any
Securityholder, threatened or contemplated, by or against or affecting Boone or
its assets or business, before or by any court or governmental or regulatory
official, body or authority, or before an arbitrator of any kind. Neither Boone
nor any Securityholder has any knowledge of any condition or state of facts or
the occurrence of any event that might reasonably form the basis of any claim,
liability or litigation against Boone. Boone is not a party to or otherwise
bound or affected by the provisions of any judgment, order, writ, injunction or
decree of any court, arbitrator or governmental or regulatory official, body or
authority.

A.2.13 COMPLIANCE WITH LAW. Boone has complied in all material respects with
each, and is not in violation of any, law, rule or regulation to which it or its
business is, or its operations, assets or properties

<PAGE>

                                  APPENDIX A-8

are, subject and has not failed to obtain or adhere to the requirements of any
license, permit or other authorization necessary to the ownership of its assets
and properties or to the conduct of its business.

A.2.14 VALIDITY OF CONTEMPLATED TRANSACTIONS; ETC. The execution, delivery and
performance hereof by the Securityholder will not contravene or violate (a) any
law, rule or regulation to which Boone is subject, (b) any judgment, order,
writ, injunction or decree of any court, arbitrator or governmental or
regulatory official, body or authority which is applicable to Boone or (c) the
charter documents of Boone; nor will such execution, delivery or performance
violate, be in conflict with or result in the breach (with or without the giving
of notice or lapse of time, or both) of any term, condition or provision of, or
require the consent of any other party to, any contract, commitment, agreement,
lease, license, permit, authorization, document or other understanding, oral or
written, to or by which Boone is a party or otherwise bound or affected or by
which any of the assets or properties of Boone may be bound or affected or give
any party with rights thereunder the right to terminate, modify, accelerate,
renegotiate or otherwise change the existing rights or obligations of Boone
thereunder.

A.2.15 INSURANCE. Schedule A.2.15 contains a true and complete description of
the insurance coverage in effect now or at any time during the past five years
with respect to Boone and its business and properties, together with a
description of all insurance claims in any one case in excess of $25,000.00 made
by Boone during the past five years. Boone has at all times during the past five
years maintained insurance coverage substantially similar to the insurance
coverage currently in effect. There is no default under any such current
coverage, nor has there been any failure to give any notice or present any claim
under any such coverage in a timely fashion or in the manner or detail required
by the policy or binder. There are no outstanding unpaid premiums, and there are
no provisions in any insurance coverage of Boone for retroactive or
retrospective premium adjustments. No notice of cancellation or non-renewal with
respect to, or disallowance of any claim under, any such coverage has been
received by Boone. All products liability and general liability insurance
policies maintained by Boone are and historically have been occurrence policies
and not claims made policies. There are no outstanding performance bonds or
other surety arrangements covering or issued for the benefit of Boone or its
business or as to which Boone has or may incur any liability.

A.2.16 CONTRACTS AND COMMITMENTS. Except as listed and described on Schedule
A.2.16 hereto or, in the case of benefit plans and arrangements, Schedule A.2.18
hereto, Boone is not is a party to or otherwise bound or affected by any written
or oral:

      (u)   agreement,  contract  or  commitment  with  any  present  or  former
            shareholder,  director,  officer,  employee or consultant or for the
            employment  of  any  person,   including   without   limitation  any
            consultant;

      (v)   agreement, contract, commitment or arrangement with any labour union
            or other representative of employees;

      (w)   agreement,  contract or  commitment  for the purchase of, or payment
            for,  supplies or products,  or for the performance of services by a
            third party, involving in any one case $5,000.00 or more;

      (x)   agreement,  contract or commitment to sell or supply  products or to
            perform services, involving in any one case $5,000.00 or more;


<PAGE>

                                  APPENDIX A-9

      (y)   agreement,  contract or commitment not otherwise  listed on Schedule
            A.2.16 hereto and  continuing  over a period of more than six months
            from the date hereof or exceeding $5,000.00 in value;

      (z)   representative or sales agency agreement, contract or commitment;

      (aa)  real  property  sale  agreements  wherein  Boone  is the  vendor  or
            purchaser,  real  property  lease  agreements  wherein  Boone is the
            lessor or the lessee and all chattel lease agreements  wherein Boone
            is the lessor or the lessee;

      (bb)  note, debenture,  bond, conditional sale agreement,  equipment trust
            agreement,  letter  of credit  agreement,  loan  agreement  or other
            agreement or contract,  commitment or arrangement  for the borrowing
            or lending of money (including  without  limitation loans to or from
            officers,  directors,  any  Securityholder  or any  member of any of
            their  immediate  families),   agreement,  contract,  commitment  or
            arrangement for a line of credit or guarantee,  indemnity, pledge or
            undertaking  in any manner  whatsoever  of the  indebtedness  of any
            other person;

      (cc)  agreement,  contract or commitment  for any  charitable or political
            contribution;

      (dd)  agreement,  contract or commitment  for any capital  expenditure  in
            excess of $5,000.00;

      (ee)  agreement,  contract or commitment  limiting or  restraining it from
            engaging or competing in any lines of business with any person,  nor
            is any officer or employee of Boone subject to any such agreement;

      (ff)  license,  franchise,  distributorship  or other  similar  agreement,
            contract or commitment,  including  without  limitation  those which
            relate in whole or in part to any  patent,  trademark,  trade  name,
            service mark or copyright or to any ideas,  technical  assistance or
            other know-how of or used by Boone; or

      (gg)  material agreement,  contract or commitment not made in the ordinary
            course of business.
                            
                  Except as may be disclosed on Schedule A.2.16 hereto, each of
the agreements, contracts, commitments, arrangements, leases and other
instruments, documents and undertakings listed on Schedule A.2.16 hereto is
valid and enforceable in accordance with its terms, and the parties thereto are
in compliance with the provisions thereof, no party is in default in the
performance, observance or fulfilment of any material obligation, covenant or
condition contained therein, and no event has occurred which with or without the
giving of notice or lapse of time, or both, would constitute a default
thereunder; furthermore, except as may be disclosed on Schedule A.2.16 hereto,
no such agreement, contract, commitment, arrangement, lease or other instrument,
document or undertaking, in the reasonable opinion of Boone or any
Securityholder, contains any contractual requirement with which there is a
reasonable likelihood Boone or any other party thereto will be unable to comply.

A.2.17 ADDITIONAL INFORMATION. Schedule A.2.17 hereto contains, to the extent
not described in some other Schedule hereto, accurate lists and summary
descriptions of the following:

                                 
      (hh)  all  vehicles,   equipment,   furniture   and  fixtures,   leasehold
            improvements and other material items of personal  property owned or
            leased by  Boone,  specifying  which are owned and which are  leased
            and, with respect to leased property, specifying the identity of the
            lessor,  the rental rate and the  unexpired  term of the lease,  and
            also specifying serial numbers (where appropriate) and location;

<PAGE>

                                 APPENDIX A-10

      (ii)  all real property and interests in real  property  owned,  leased or
            otherwise  held by Boone  specifying  which  are owned and which are
            leased and, with respect to leased property, specifying the identity
            of the lessor, the rental rate and the unexpired term of the lease;

      (jj)  the names of all present directors of Boone;

      (kk)  the names and current  annual  salary or hourly rates of all present
            officers  and  employees of Boone  together  with a statement of the
            full amount of any  bonuses,  profit  sharing or other  remuneration
            paid to each such person and to any  director  during the current or
            the last  fiscal  year or payable to each such  person in the future
            and the basis therefor;

      (ll)  the names and addresses of each bank and other financial institution
            or fund in which  Boone  maintains  an  account  (whether  checking,
            savings,  money market or otherwise),  lock box or safe deposit box,
            and  the  account  numbers  and  names  of  persons  having  signing
            authority or other access with respect thereto;

      (mm)  a listing  and  description  of all cash  equivalent  items  held by
            Boone;

      (nn)  a list of all of licenses, permits and authorizations of Boone;

      (oo)  the names of all  persons  authorized  to  borrow  money or incur or
            guarantee indebtedness on behalf of Boone;

      (pp)  the names of all persons holding powers of attorney from Boone and a
            summary statement of the terms thereof; and

      (qq)  a  listing  of  all  current  liabilities  of  Boone  in  excess  of
            $5,000.00.

A.2.18   BENEFIT PLANS AND ARRANGEMENTS.

      (rr)  Schedule  A.2.18  hereto lists all employee  benefit  plans,  funds,
            policies,  arrangements,  practices,  customs and  understandings or
            programs,  whether or not they are or are intended to be (i) covered
            or qualified under the ITA, the Code,  ERISA or any other applicable
            law,  (ii)  written  or  oral,  (iii)  funded  or  unfunded  or (iv)
            generally available to any or all employees (or former employees) of
            Boone (and/or their beneficiaries or dependents),  which were or are
            established,  contributed  to  or  maintained  by  Boone,  including
            without limitation welfare, fringe benefit, pension, profit sharing,
            retirement, stock purchase, stock option, stock bonus, disability or
            wage   continuation,   sick  pay  or  vacation   pay,   supplemental
            unemployment,   severance  or  deferred   compensation   plans  (the
            "PLANS").  For  purposes of this  Section  A.2.18,  the term "BOONE"
            shall  include  any  corporation  which is a member of a  controlled
            group of  corporations  (as  defined in section  414(b) of the Code)
            which includes Boone, any trade or business (whether or not


<PAGE>


                                  APPENDIX A-11

            incorporated) which is under common control (as defined in
            section 414(c) of Code) with Boone, any organization (whether
            or not incorporated) which is a member of an affiliated
            service group (as defined in section 414(m) of the Code) which
            includes Boone and any other entity required to be aggregated
            with Boone pursuant to the regulations issued under section
            414(o) of the Code.

      (ss)  With  respect to any such  Plans,  Boone has made all  contributions
            thereto which it has accrued on its financial  statements  and other
            books and records as a  liability  and Boone has  delivered  or made
            available to the Buyer true, accurate and complete copies of (i) all
            documents governing such Plans, and all amendments thereto, (ii) all
            reports filed by Boone or Plan  officials with respect to such Plans
            with the United  States  Department of Labor,  the Internal  Revenue
            Service  (the  "IRS")  and any other  federal,  provincial  or state
            regulatory agency, (iii) all summary plan descriptions,  notices and
            other reporting and disclosure material furnished to participants in
            any of such Plans,  (iv) all  actuarial,  accounting  and  financial
            reports  prepared  with  respect  to any of such  Plans  and (v) all
            currently  effective IRS ruling or  determination  letters on any of
            such Plans.

      (tt)  The Plans and provisions  thereof,  the trusts created thereby,  and
            the  operation  of the Plans  are (and  have at all  times  been) in
            compliance with and conform (and at all times have conformed) to the
            applicable  provisions of the ITA, the Code, ERISA, other applicable
            statutes and governmental rules and regulations.

      (uu)  There is no action,  claim or demand of any kind (other than routine
            claims for benefits)  which has been brought or, to the knowledge of
            Boone  or any  Securityholder  threatened,  against  any Plan or the
            assets thereof, or against any fiduciary of any such Plan.

      (vv)  No Plan  is,  and  Boone  does not have  any  liability,  actual  or
            contingent,  with respect to any plan that is (i) a defined  benefit
            pension  plan  subject to Title IV of ERISA,  (ii) a  multi-employer
            pension  plan,  as that term is defined in sections  4001(a)(e)  and
            3(37) of ERISA,  (iii) a plan  providing  life,  health  or  medical
            benefits to retired employees or (iv) a self-insured welfare benefit
            plan.

      (ww)  With  respect to any Plan that is an employee  welfare  benefit plan
            (within  the meaning of section  3(1) of ERISA) (a "WELFARE  PLAN"),
            (i) each  Welfare  Plan  for  which  contributions  are  claimed  as
            deductions under any provision of the Code is in compliance with all
            applicable  requirements  pertaining to such deductions and (ii) any
            Plan that is a group  health  plan  (within  the  meaning of section
            5000(b)(1)  of the Code)  complies,  and in each and every  case has
            complied, with all of the requirements of section 4980B of the Code,
            ERISA,  Title  XXII  of  the  Public  Health  Service  Act  and  the
            applicable provisions of the Social Security Act.

      (xx)  The Buyer has not made any commitment  regarding the continuation of
            any Plan  maintained  by Boone after the Closing  Date and the Buyer
            will be free,  in its sole  discretion,  to  cause  Boone to  amend,
            cancel,  terminate or  otherwise  modify in any and all respects any
            such Plan.

A.2.19 ENVIRONMENTAL MATTERS.  In addition to the representations and warranties
in Section A.2.13 hereof and not in limitation thereof, (a) no releases of
Hazardous Materials (as defined in this Section

<PAGE>

                                  APPENDIX A-12

A.2.19) have occurred at or from any property which is the subject of this
transaction or which was otherwise owned or used at any time by Boone or any of
its predecessors for management of Hazardous Materials, (b) there are no past,
pending, or threatened Environmental Claims (as defined in this Section A.2.19)
against Boone, (c) there are no leaking underground storage tanks owned by
Boone, or located at any facility owned or operated by Boone and (d) there are
no facts, circumstances, or conditions that could reasonably be expected to
restrict, under any Environmental Law or Environmental Permit (each as defined
in this Section A.2.19) in effect prior to or at the Closing Date, the
ownership, occupancy, use or transferability of any property owned, operated or
leased by Boone. As used in this Section A.2.19:

  (i)   "ENVIRONMENTAL  CLAIMS"  means any and all  administrative  or  judicial
        actions,   suits,  orders,   claims,  liens,   notices,   violations  or
        proceedings   related  to  any  applicable   Environmental  Law  or  any
        Environmental Permit brought,  issued or asserted by: (A) a governmental
        authority  for  compliance,   damages,  penalties,   removal,  response,
        remedial or other action pursuant to any applicable Environmental Law or
        (B) a third party seeking damages for personal injury or property damage
        resulting  from the release of a Hazardous  Material  at, to or from any
        facility of Boone,  including without limitation Boone employees seeking
        damages for exposure to Hazardous Materials;


     (ii)     "ENVIRONMENTAL LAWS" means all federal, provincial,
               state and local laws, statutes, ordinances, codes,    
               rules and regulations related to protection of the
               environment or the handling, use, generation,    
               treatment, storage, transportation or disposal of
                Hazardous Materials;

     (iii)    "ENVIRONMENTAL PERMIT" means all permits, licenses,
              approvals, authorizations or consents required by any
              governmental authority under any applicable
              Environmental Law and includes any and all orders,
              consent orders or binding agreements issued or
              entered into by a governmental authority under any
              applicable Environmental Law; and

     (iv)     "HAZARDOUS MATERIAL" means any hazardous or toxic
              substance, material or waste which is regulated as of
              the Closing Date by any federal, provincial, state or
              local governmental authority under any Environmental
              Law now or hereafter effective, including, without
              limitation, any waste, pollutant, hazardous
              substance, toxic substance, hazardous waste, special
              waste, petroleum or petroleum-derived substance or
              waste, or any constituent of any such substance or
              waste.

A.2.20   INTELLECTUAL PROPERTY.

      (yy)  The   patents,    patent   applications,    trademarks,    trademark
            applications,  trade names and trade name  applications and licenses
            in respect  thereof as set forth in Schedule  A.2.20 hereto  annexed
            are:

         (i)      the only ones necessary so as to enable Boone to carry on its 
                  business as presently conducted; and


<PAGE>

                                  APPENDIX A-13

         (ii)     to the knowledge of the Securityholder, Boone is
                  entitled to use the same and the Securityholder is
                  not aware of any other person using the same in any
                  jurisdiction where Boone carries on business.

      (zz)  Boone  owns  or  licenses  or  otherwise  has the  right  to use all
            material   licenses,    permits,   patents,   patent   applications,
            trademarks,  trademark  applications,  service  marks,  trade names,
            copyrights, copyright applications,  franchises,  authorizations and
            other  intellectual  property  rights  that  are  necessary  for the
            operations of its assets and business,  without infringement upon or
            conflict  with the rights of any other person with respect  thereto,
            including,  without limitation,  all trade names associated with any
            private  label  brands  of  Boone.  To  the  best  knowledge  of the
            Securityholder,  no slogan or other  advertising,  device,  product,
            process, method,  substance, part or component or other material now
            employed,  or now  contemplated  by be employed,  by Boone infringes
            upon or conflicts with any rights owned by any other person,  and no
            claim or  litigation  regarding  any of the  foregoing is pending or
            threatened. No patent, invention, device, application, principle and
            no statute,  law, rule,  regulation,  standard or code involving the
            intellectual  property  is  pending  or,  to  the  knowledge  of the
            Securityholder,  proposed,  except  where  the  consequences  in the
            aggregate have no material adverse effect on Boone or its business.

A.2.21 NO THIRD PARTY OPTIONS. There are no existing agreements, options,
commitments or rights with, to or in any third person to acquire any of the
assets or properties of Boone or any interest therein, except for those
contracts entered into in the ordinary course of business consistent with past
practice for the sale of Boone's' products and services.

A.2.22 SCHEDULES; DELIVERY OF DOCUMENTS; CORPORATE RECORDS. The Securityholder
has delivered or made available to the Buyer the originals or true and complete
copies of all documents, including without limitation all amendments,
supplements or modifications thereof or waivers currently in effect thereunder,
referred to on the Schedules hereto or otherwise material to the representations
and warranties in this Agreement and have also delivered to the Buyer copies of
the constating documents of Boone and all amendments thereto and the By-Laws, as
amended, of Boone. The minute and stock record books of Boone, which have been
made available to the Buyer for its inspection, contain complete and correct
copies of all charter documents and the records of all meetings and consents in
lieu of meeting of the Boards of Directors (and any committees thereof) and
voting shareholders of Boone since the dates of their incorporation.

A.2.23 COMPLETENESS OF DISCLOSURE. No representation or warranty by any
Securityholder contained in this Agreement, and no representation, warranty or
statement contained in any list, certificate, Appendix, Schedule, Exhibit or
other instrument, document, agreement or writing furnished or to be furnished
to, or made with, the Buyer pursuant hereto or in connection with the
negotiation, execution or performance hereof, contains or will contain any
untrue statement of a material fact or omits or will omit to state any fact
necessary to make any statement herein or therein not misleading. No
Securityholder has any information or knowledge of any fact not communicated to
the Buyer and relating to Boone which, if known to the Buyer, might reasonably
be expected to deter the Buyer from entering into this Agreement or from
completing the transactions contemplated by this Agreement. All facts known to
such Securityholder which are material to an understanding of the business of
Boone have been disclosed to the Buyer.


<PAGE>

                                  APPENDIX A-14

A.3      REPRESENTATIONS AND WARRANTIES OF THE BUYER.

A.3.1  REPORTING ISSUER STATUS. The Buyer is a "reporting issuer" as that term
is defined in the Securities Act (Alberta) and the common shares of the Buyer 
are listed for trading on the Nasdaq National Market.

A.3.2  AUTHORIZED CAPITAL. The authorized capital of the Buyer consists of an
unlimited number of common shares, of which 3,004,050 common shares are issued
and outstanding.

A.3.3  CORPORATE EXISTENCE. The Buyer is a corporation duly organized, validly
existing and in good standing under the laws of the Province of Alberta.

A.3.4  CORPORATE POWER AND AUTHORIZATION. The Buyer has the corporate power to
execute, deliver and perform this Agreement. The execution, delivery and
performance hereof by the Buyer have been duly authorized by all necessary
corporate action. This Agreement is a legal, valid and binding obligation of the
Buyer and is enforceable against the Buyer in accordance with its terms.

A.3.5  VALIDITY OF CONTEMPLATED TRANSACTIONS; ETC. The execution, delivery and
performance hereof by the Buyer will not contravene or violate (a)any law, rule
or regulation to which the Buyer is subject, (b) any judgment, order, writ,
injunction or decree of any court, arbitrator or governmental or regulatory
official, body or authority which is applicable to the Buyer or (c) the
Certificate of Incorporation or ByLaws of the Buyer; nor will such execution,
delivery or performance violate, be in conflict with or result in the breach
(with or without the giving of notice or lapse of time, or both) of any term,
condition or provision of, or require the consent which has not been obtained of
any other party to, any contract, commitment or agreement, oral or written, to
or by which the Buyer is a party or otherwise bound or affected or by which any
of the Buyer's assets or properties may be bound or affected. No authorization,
approval or consent, and no registration or filing with, any governmental or
regulatory official, body or authority is required in connection with the
execution, delivery and performance hereof by the Buyer.







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