<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the
financial statements filed as part of the Company's 10-Q and is qualified in its
entirety by reference to such financial statements.
</LEGEND>
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          MAR-31-2000
<PERIOD-END>                               JUN-30-1999
<CASH>                                           8,372
<SECURITIES>                                         0
<RECEIVABLES>                                  107,891
<ALLOWANCES>                                       320
<INVENTORY>                                          0
<CURRENT-ASSETS>                               135,889
<PP&E>                                         423,807
<DEPRECIATION>                                 177,731
<TOTAL-ASSETS>                                 399,951
<CURRENT-LIABILITIES>                           87,416
<BONDS>                                        108,233
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         6,004
<OTHER-SE>                                     178,225
<TOTAL-LIABILITY-AND-EQUITY>                   399,951
<SALES>                                         98,860
<TOTAL-REVENUES>                                98,860
<CGS>                                           80,333
<TOTAL-COSTS>                                   80,333
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               1,346
<INCOME-PRETAX>                                  7,980
<INCOME-TAX>                                     2,946
<INCOME-CONTINUING>                              5,034
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     5,034
<EPS-BASIC>                                        .22
<EPS-DILUTED>                                      .22