<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
UNAUDITED CONSOLIDATED BALANCE SHEET AT MARCH 31, 1998 AND UNAUDITED STATEMENT
OF OPERATIONS FOR THE THREE MONTHS ENDED MARCH 31, 1998, AND IS QUAILIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               MAR-31-1998
<CASH>                                          11,158
<SECURITIES>                                         0
<RECEIVABLES>                                    4,832
<ALLOWANCES>                                         0
<INVENTORY>                                      3,738
<CURRENT-ASSETS>                                29,914
<PP&E>                                         144,579
<DEPRECIATION>                                  79,134
<TOTAL-ASSETS>                                 101,083
<CURRENT-LIABILITIES>                            4,368
<BONDS>                                         41,510
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         2,612
<OTHER-SE>                                      43,146
<TOTAL-LIABILITY-AND-EQUITY>                   101,083
<SALES>                                          9,740
<TOTAL-REVENUES>                                10,532
<CGS>                                            6,950
<TOTAL-COSTS>                                    8,345
<OTHER-EXPENSES>                                 1,045
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               1,685
<INCOME-PRETAX>                                     71
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                                 71
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                        71
<EPS-PRIMARY>                                        0
<EPS-DILUTED>                                        0