<TABLE> <S> <C>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
FINANCIAL STATEMENTS FILED AS PART OF THE COMPANY'S 10-K AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> MAR-31-2000
<PERIOD-END> MAR-31-2000
<CASH> 11,001
<SECURITIES> 0
<RECEIVABLES> 119,072
<ALLOWANCES> 500
<INVENTORY> 0
<CURRENT-ASSETS> 148,563
<PP&E> 461,285
<DEPRECIATION> 184,918
<TOTAL-ASSETS> 450,976
<CURRENT-LIABILITIES> 95,788
<BONDS> 128,000
0
0
<COMMON> 6,004
<OTHER-SE> 189,696
<TOTAL-LIABILITY-AND-EQUITY> 450,976
<SALES> 416,820
<TOTAL-REVENUES> 416,820
<CGS> 345,178
<TOTAL-COSTS> 345,178
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 5,936
<INCOME-PRETAX> 26,225
<INCOME-TAX> 9,441
<INCOME-CONTINUING> 16,784
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 16,784
<EPS-BASIC> 0.74
<EPS-DILUTED> 0.73
</TABLE>