<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED FINANCIAL STATEMENTS OF THE COMPANY AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                           1,603
<SECURITIES>                                         0
<RECEIVABLES>                                   16,563
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                                21,652
<PP&E>                                         368,526
<DEPRECIATION>                                  94,387
<TOTAL-ASSETS>                                 352,583
<CURRENT-LIABILITIES>                           21,624
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           403
<OTHER-SE>                                     232,018
<TOTAL-LIABILITY-AND-EQUITY>                   352,583
<SALES>                                         73,827
<TOTAL-REVENUES>                                73,827
<CGS>                                                0
<TOTAL-COSTS>                                  124,295
<OTHER-EXPENSES>                                  (258)
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               1,524
<INCOME-PRETAX>                                (51,734)
<INCOME-TAX>                                   (18,267)
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (33,467)
<EPS-PRIMARY>                                     (.99)
<EPS-DILUTED>                                     (.99)