<ARTICLE> 5 <RESTATED> <MULTIPLIER> 1000 <CURRENCY> U.S. DOLLARS <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> JUN-30-1997 <EXCHANGE-RATE> 1000 <CASH> 822 <SECURITIES> 0 <RECEIVABLES> 20,797 <ALLOWANCES> 513 <INVENTORY> 477 <CURRENT-ASSETS> 25,881 <PP&E> 98,569 <DEPRECIATION> 36,324 <TOTAL-ASSETS> 92,431 <CURRENT-LIABILITIES> 28,261 <BONDS> 25,734 <PREFERRED-MANDATORY> 82 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 29,772 <TOTAL-LIABILITY-AND-EQUITY> 92,431 <SALES> 0 <TOTAL-REVENUES> 63,983 <CGS> 0 <TOTAL-COSTS> 56,709 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 1,758 <INCOME-PRETAX> 5,516 <INCOME-TAX> 2,139 <INCOME-CONTINUING> 3,377 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 3,377 <EPS-PRIMARY> .42 <EPS-DILUTED> .41