<ARTICLE>                                     5
<MULTIPLIER>                                             1,000
<CURRENCY>                                    U.S. DOLLARS
                                               
                                           
<PERIOD-TYPE>                                 3-MOS
<FISCAL-YEAR-END>                             DEC-31-1999
<PERIOD-START>                                JAN-01-1999
<PERIOD-END>                                  MAR-31-1999
<EXCHANGE-RATE>                                              1
<CASH>                                                   5,727
<SECURITIES>                                                 0
<RECEIVABLES>                                           14,388
<ALLOWANCES>                                                 0
<INVENTORY>                                                  0
<CURRENT-ASSETS>                                        21,126
<PP&E>                                                 277,837
<DEPRECIATION>                                         131,546
<TOTAL-ASSETS>                                         180,739
<CURRENT-LIABILITIES>                                   15,541
<BONDS>                                                 17,898
<PREFERRED-MANDATORY>                                        0
<PREFERRED>                                                  0
<COMMON>                                                   110
<OTHER-SE>                                             134,068
<TOTAL-LIABILITY-AND-EQUITY>                           180,739
<SALES>                                                 13,769
<TOTAL-REVENUES>                                        14,110
<CGS>                                                    3,994
<TOTAL-COSTS>                                            3,994
<OTHER-EXPENSES>                                           125
<LOSS-PROVISION>                                             0
<INTEREST-EXPENSE>                                         241
<INCOME-PRETAX>                                            588
<INCOME-TAX>                                               179
<INCOME-CONTINUING>                                        409
<DISCONTINUED>                                               0
<EXTRAORDINARY>                                              0
<CHANGES>                                                    0
<NET-INCOME>                                               409
<EPS-PRIMARY>                                             0.04
<EPS-DILUTED>                                             0.04