<ARTICLE> 5

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-START>                             JAN-01-2000
<PERIOD-END>                               JUN-30-2000
<CASH>                                      10,691,000
<SECURITIES>                                         0
<RECEIVABLES>                                9,005,000
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                            19,696,000
<PP&E>                                      69,357,000
<DEPRECIATION>                              37,671,000
<TOTAL-ASSETS>                              52,162,000
<CURRENT-LIABILITIES>                       18,192,000
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        29,930
<OTHER-SE>                                  30,887,000
<TOTAL-LIABILITY-AND-EQUITY>                52,162,000
<SALES>                                      6,902,000
<TOTAL-REVENUES>                             7,010,000
<CGS>                                                0
<TOTAL-COSTS>                                5,335,000
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               9,000
<INCOME-PRETAX>                              1,666,000
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                          1,666,000
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                 1,666,000
<EPS-BASIC>                                        .07
<EPS-DILUTED>                                      .07