WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>





                                                                      EXHIBIT 27





                               MAYNARD OIL COMPANY
                            FINANCIAL DATA SCHEDULES


<ARTICLE>                           5                        
<MULTIPLIER>                    1,000
                                                              
<S>                             <C>                           
<PERIOD-TYPE>                   12-MOS                       
<FISCAL-YEAR-END>                                             DEC-31-1998 
<PERIOD-END>                                                  DEC-31-1998 
<CASH>                                                            20,890  
<SECURITIES>                                                           0  
<RECEIVABLES>                                                      2,622  
<ALLOWANCES>                                                          53  
<INVENTORY>                                                          236  
<CURRENT-ASSETS>                                                  24,915  
<PP&E>                                                           107,753  
<DEPRECIATION>                                                    72,985  
<TOTAL-ASSETS>                                                    60,363  
<CURRENT-LIABILITIES>                                              8,467  
<BONDS>                                                                0  
<PREFERRED-MANDATORY>                                                  0  
<PREFERRED>                                                            0  
<COMMON>                                                             488  
<OTHER-SE>                                                        45,159  
<TOTAL-LIABILITY-AND-EQUITY>                                      60,363  
<SALES>                                                           16,166  
<TOTAL-REVENUES>                                                  17,502  
<CGS>                                                              8,723  
<TOTAL-COSTS>                                                     29,399  
<OTHER-EXPENSES>                                                       0  
<LOSS-PROVISION>                                                       0  
<INTEREST-EXPENSE>                                                 1,011  
<INCOME-PRETAX>                                                  (11,897) 
<INCOME-TAX>                                                      (4,081) 
<INCOME-CONTINUING>                                               (7,816) 
<DISCONTINUED>                                                         0  
<EXTRAORDINARY>                                                        0  
<CHANGES>                                                              0  
<NET-INCOME>                                                      (7,816) 
<EPS-PRIMARY>                                                      (1.60) 
<EPS-DILUTED>                                                      (1.60) 
                                                                          
                                                                          
                                     

</TABLE>