<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>                   9-MOS
<FISCAL-YEAR-END>                          MAR-31-1995
<PERIOD-END>                               DEC-31-1994
<CASH>                                          13,431
<SECURITIES>                                         0
<RECEIVABLES>                                   60,009
<ALLOWANCES>                                     1,142
<INVENTORY>                                          0
<CURRENT-ASSETS>                                76,892
<PP&E>                                         207,941
<DEPRECIATION>                                 124,862
<TOTAL-ASSETS>                                 177,351
<CURRENT-LIABILITIES>                           48,602
<BONDS>                                              0
<COMMON>                                         6,004
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                     113,790
<TOTAL-LIABILITY-AND-EQUITY>                   177,351
<SALES>                                        185,471
<TOTAL-REVENUES>                               185,471
<CGS>                                          147,372
<TOTAL-COSTS>                                  147,372
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 508
<INCOME-PRETAX>                                 10,636
<INCOME-TAX>                                     5,560
<INCOME-CONTINUING>                              5,076
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     5,076
<EPS-PRIMARY>                                      .21
<EPS-DILUTED>                                      .21