<ARTICLE> 7
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM ALLEGHENY
CORPORATION SUBSIDIARIES CONSOLIDATED BALANCE SHEET AT MARCH 31, 2000 AND THE
CONSOLIDATED STATEMENT OF EARNINGS FOR THE 3 MONTHS THEN ENDED AND IS QUALIFIED
IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-START>                             JAN-01-2000
<PERIOD-END>                               MAR-31-2000
<DEBT-HELD-FOR-SALE>                         1,443,620
<DEBT-CARRYING-VALUE>                                0
<DEBT-MARKET-VALUE>                                  0
<EQUITIES>                                     450,464
<MORTGAGE>                                           0
<REAL-ESTATE>                                        0
<TOTAL-INVEST>                               1,894,084
<CASH>                                          48,449
<RECOVER-REINSURE>                             882,236
<DEFERRED-ACQUISITION>                               0
<TOTAL-ASSETS>                               4,496,821
<POLICY-LOSSES>                              2,063,387
<UNEARNED-PREMIUMS>                            356,811
<POLICY-OTHER>                                       0
<POLICY-HOLDER-FUNDS>                                0
<NOTES-PAYABLE>                                399,791
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                             0
<OTHER-SE>                                   1,088,079
<TOTAL-LIABILITY-AND-EQUITY>                 4,496,821
<PREMIUMS>                                     162,656
<INVESTMENT-INCOME>                             53,488
<INVESTMENT-GAINS>                                 475
<OTHER-INCOME>                                  93,145
<BENEFITS>                                     135,076
<UNDERWRITING-AMORTIZATION>                          0
<UNDERWRITING-OTHER>                                 0
<INCOME-PRETAX>                                  (207)
<INCOME-TAX>                                     (689)
<INCOME-CONTINUING>                                482
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       482
<EPS-BASIC>                                        .07
<EPS-DILUTED>                                      .06
<RESERVE-OPEN>                                       0
<PROVISION-CURRENT>                                  0
<PROVISION-PRIOR>                                    0
<PAYMENTS-CURRENT>                                   0
<PAYMENTS-PRIOR>                                     0
<RESERVE-CLOSE>                                      0
<CUMULATIVE-DEFICIENCY>                              0