<ARTICLE> 5
<MULTIPLIER> 1,000
       
                               
<PERIOD-TYPE>                     3-MOS
<FISCAL-YEAR-END>                            DEC-31-1998
<PERIOD-START>                               JAN-01-1998
<PERIOD-END>                                 MAR-31-1998
<CASH>                                             9,106
<SECURITIES>                                           0
<RECEIVABLES>                                     10,510
<ALLOWANCES>                                       (322)
<INVENTORY>                                        2,566
<CURRENT-ASSETS>                                  22,177
<PP&E>                                           586,413
<DEPRECIATION>                                   247,020
<TOTAL-ASSETS>                                   363,005
<CURRENT-LIABILITIES>                             21,450
<BONDS>                                          144,508
<PREFERRED-MANDATORY>                                  0
<PREFERRED>                                           31
<COMMON>                                             162
<OTHER-SE>                                       186,162
<TOTAL-LIABILITY-AND-EQUITY>                     363,005
<SALES>                                           20,343
<TOTAL-REVENUES>                                  20,637
<CGS>                                             13,815
<TOTAL-COSTS>                                     17,001
<OTHER-EXPENSES>                                      23
<LOSS-PROVISION>                                       0
<INTEREST-EXPENSE>                                 3,278
<INCOME-PRETAX>                                      304
<INCOME-TAX>                                           0
<INCOME-CONTINUING>                                  304
<DISCONTINUED>                                         0
<EXTRAORDINARY>                                        0
<CHANGES>                                              0
<NET-INCOME>                                         304
<EPS-PRIMARY>                                      (.08)
<EPS-DILUTED>                                      (.08)