<ARTICLE> 5
<MULTIPLIER> 1000
       
                  
<PERIOD-TYPE>        3-MOS
<FISCAL-YEAR-END>                DEC-31-1997
<PERIOD-END>                     MAR-31-1997
<CASH>                                 1,806
<SECURITIES>                               0
<RECEIVABLES>                          4,417
<ALLOWANCES>                               0
<INVENTORY>                              233
<CURRENT-ASSETS>                       9,068
<PP&E>                               181,226
<DEPRECIATION>                        57,595
<TOTAL-ASSETS>                       232,793
<CURRENT-LIABILITIES>                  7,843
<BONDS>                                    0
<PREFERRED-MANDATORY>                      0
<PREFERRED>                                0
<COMMON>                              27,817
<OTHER-SE>                           124,644
<TOTAL-LIABILITY-AND-EQUITY>         232,793
<SALES>                                9,218
<TOTAL-REVENUES>                      10,248
<CGS>                                    832
<TOTAL-COSTS>                            832
<OTHER-EXPENSES>                       2,332
<LOSS-PROVISION>                           0
<INTEREST-EXPENSE>                       473
<INCOME-PRETAX>                        5,989
<INCOME-TAX>                           1,263
<INCOME-CONTINUING>                    4,726
<DISCONTINUED>                             0
<EXTRAORDINARY>                            0
<CHANGES>                                  0
<NET-INCOME>                           4,726
<EPS-PRIMARY>                           0.55 <F1>
<EPS-DILUTED>                           0.55 <F1>
<FN>
<F1>
Earnings per share data have been restated for all periods 
presented to give effect for the adoption of Statement of Financial 
Accounting Standards No. 128 "Earnings Per Share." Basic and diluted 
earnings per share have been entered in place of primary and fully 
diluted, respectively.
</FN>