<ARTICLE> 5
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<CASH>                                           7,330
<SECURITIES>                                         0
<RECEIVABLES>                                   53,117
<ALLOWANCES>                                     2,795
<INVENTORY>                                      1,641
<CURRENT-ASSETS>                                85,548
<PP&E>                                         172,904
<DEPRECIATION>                                  59,934
<TOTAL-ASSETS>                                 220,494
<CURRENT-LIABILITIES>                           43,925
<BONDS>                                        138,595
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            59
<OTHER-SE>                                      26,182
<TOTAL-LIABILITY-AND-EQUITY>                   220,494
<SALES>                                              0
<TOTAL-REVENUES>                                81,340
<CGS>                                                0
<TOTAL-COSTS>                                   76,222
<OTHER-EXPENSES>                                  (86)
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               3,825
<INCOME-PRETAX>                                  1,379
<INCOME-TAX>                                       482
<INCOME-CONTINUING>                                897
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       897
<EPS-PRIMARY>                                      .16
<EPS-DILUTED>                                      .16