<TABLE> <S> <C>


<ARTICLE> 5
<LEGEND>
THIS  SCHEDULE  CONTAINS  SUMMARY  FINANCIAL   INFORMATION  EXTRACTED  FROM  THE
COMPANY'S  FORM 10-Q FOR THE PERIOD ENDED JUNE 30, 1999, AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>

<S>                                                                                   <C>
<PERIOD-TYPE>                                                                       6-MOS
<FISCAL-YEAR-END>                                                             DEC-31-1999
<PERIOD-END>                                                                  JUN-30-1999
<CASH>                                                                             12,685
<SECURITIES>                                                                            0
<RECEIVABLES>                                                                       9,683
<ALLOWANCES>                                                                            0
<INVENTORY>                                                                           598
<CURRENT-ASSETS>                                                                   28,646
<PP&E>                                                                             95,855
<DEPRECIATION>                                                                     38,822
<TOTAL-ASSETS>                                                                     98,219
<CURRENT-LIABILITIES>                                                              16,867
<BONDS>                                                                                 0
<PREFERRED-MANDATORY>                                                                   0
<PREFERRED>                                                                             0
<COMMON>                                                                            4,400
<OTHER-SE>                                                                         51,908
<TOTAL-LIABILITY-AND-EQUITY>                                                       98,219
<SALES>                                                                                 0
<TOTAL-REVENUES>                                                                   67,977
<CGS>                                                                                   0
<TOTAL-COSTS>                                                                      64,119
<OTHER-EXPENSES>                                                                    (481)
<LOSS-PROVISION>                                                                        0
<INTEREST-EXPENSE>                                                                    442
<INCOME-PRETAX>                                                                     3,897
<INCOME-TAX>                                                                        1,526
<INCOME-CONTINUING>                                                                 2,371
<DISCONTINUED>                                                                          0
<EXTRAORDINARY>                                                                         0
<CHANGES>                                                                               0
<NET-INCOME>                                                                        2,371
<EPS-BASIC>                                                                         .98
<EPS-DILUTED>                                                                         .98



</TABLE>