<PAGE>
 
             ZAPATA HAYNIE CORPORATION PROFIT-SHARING/SAVINGS PLAN
             -----------------------------------------------------

                            STATEMENT OF CHANGES IN
                            -----------------------

                     NET ASSETS AVAILABLE FOR PLAN BENEFITS
                     --------------------------------------

                     FOR THE YEAR ENDED SEPTEMBER 30, 1992
                     -------------------------------------

<TABLE>
<CAPTION>
 
 
                                                        Money Market/                Zapata
                                                          Guaranteed      Fixed      Common
                                             Equity       Investment      Income      Stock      Loan
                                              Fund      Contract Fund      Fund       Fund       Fund       Total
                                           -----------  -------------    --------    ---------  --------  ------------
<S>                                        <C>           <C>             <C>         <C>        <C>       <C>
 
NET ASSETS AVAILABLE FOR PLAN BENEFITS,    
 beginning of year                         $  905,407      $2,857,396    $ 87,955    $40,355    $45,503   $3,936,616
 
CONTRIBUTIONS:
   Employee                                   222,618         266,269      34,092     21,203          -      544,182
   Employer                                    15,493         405,878       2,412      1,391          -      425,174
 
INTEREST AND DIVIDEND INCOME                   29,337         203,188       8,225         93      5,730      246,573
 
REALIZED GAIN (LOSS) ON INVESTMENT IN          (5,226)              -        (119)        42          -       (5,303)
 MASTER TRUST
 
UNREALIZED APPRECIATION
 (DEPRECIATION) OF INVESTMENT IN              112,900               -       6,032      9,122          -      128,054
 MASTER TRUST
 
 
WITHDRAWALS, net of transfers between        
 funds                                        (96,325)       (420,313)    (17,034)    (7,415)    14,723     (526,364)
 
ADMINISTRATIVE EXPENSES                       (22,101)        (67,900)     (1,827)         -          -      (91,828)
                                           ----------      ----------    --------    -------    -------   ---------- 
NET ASSETS AVAILABLE FOR PLAN BENEFITS,   
 end of year                               $1,162,103      $3,244,518    $119,736    $64,791    $65,956   $4,657,104
                                           ==========      ==========    ========    =======    =======   ==========
 
</TABLE>

   The accompanying notes are an integral part of these financial statements.

                                      F-7