<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the
Form 10-Q for the period ending June 30, 1999 and is qualified in its
entirety by reference to such 10-Q.
</LEGEND>
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               JUN-30-1999
<CASH>                                           9,148
<SECURITIES>                                         0
<RECEIVABLES>                                        0<F1>
<ALLOWANCES>                                         0<F1>
<INVENTORY>                                      1,160
<CURRENT-ASSETS>                                36,196
<PP&E>                                          78,346
<DEPRECIATION>                                  36,002
<TOTAL-ASSETS>                                  93,250
<CURRENT-LIABILITIES>                           12,608
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         7,500
<OTHER-SE>                                      45,007
<TOTAL-LIABILITY-AND-EQUITY>                    93,250
<SALES>                                              0
<TOTAL-REVENUES>                                55,900
<CGS>                                                0
<TOTAL-COSTS>                                   51,204
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 590
<INCOME-PRETAX>                                  4,362
<INCOME-TAX>                                     1,895
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     1,793
<EPS-BASIC>                                        .28
<EPS-DILUTED>                                      .28
<FN>
<F1>Disclosure not required on interim financial statements.
</FN>