
<TABLE> <S> <C>


<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE OCTOBER
31, 1999 CONSOLIDATED BALANCE SHEET AND CONSOLIDATED STATEMENT OF OPERATIONS FOR
THE SIX-MONTH PERIOD ENDED OCTOBER 31, 1999, AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINACIAL STATEMENTS AND THE FOOTNOTES THERETO.
</LEGEND>
<MULTIPLIER> 1,000

<S>                                     <C>
<PERIOD-TYPE>                             6-MOS
<FISCAL-YEAR-END>                                             APR-30-2000
<PERIOD-START>                                                MAY-01-1999
<PERIOD-END>                                                  OCT-31-1999
<CASH>                                                        4,833
<SECURITIES>                                                  0
<RECEIVABLES>                                                 31,849
<ALLOWANCES>                                                  2,115
<INVENTORY>                                                   737
<CURRENT-ASSETS>                                              42,056
<PP&E>                                                        234,636
<DEPRECIATION>                                                78,849
<TOTAL-ASSETS>                                                325,371
<CURRENT-LIABILITIES>                                         33,417
<BONDS>                                                       0
<PREFERRED-MANDATORY>                                         0
<PREFERRED>                                                   0
<COMMON>                                                      161
<OTHER-SE>                                                    156,404
<TOTAL-LIABILITY-AND-EQUITY>                                  325,371
<SALES>                                                       0
<TOTAL-REVENUES>                                              111,156
<CGS>                                                         0
<TOTAL-COSTS>                                                 62,036
<OTHER-EXPENSES>                                              32,319
<LOSS-PROVISION>                                              1,015
<INTEREST-EXPENSE>                                            3,441
<INCOME-PRETAX>                                               14,092
<INCOME-TAX>                                                  6,178
<INCOME-CONTINUING>                                           7,914
<DISCONTINUED>                                                0
<EXTRAORDINARY>                                               0
<CHANGES>                                                     0
<NET-INCOME>                                                  7,914
<EPS-BASIC>                                                   0.49
<EPS-DILUTED>                                                 0.48


</TABLE>
