<TABLE> <S> <C>
<PAGE>
<ARTICLE> UT
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEET AND STATEMENT OF INCOME FROM DPL's 2nd QUARTER 2000
10-Q.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<BOOK-VALUE> PER-BOOK
<TOTAL-NET-UTILITY-PLANT> 1,717,279
<OTHER-PROPERTY-AND-INVEST> 74,226
<TOTAL-CURRENT-ASSETS> 485,025
<TOTAL-DEFERRED-CHARGES> 293,310
<OTHER-ASSETS> 171,787
<TOTAL-ASSETS> 2,741,627
<COMMON> 2
<CAPITAL-SURPLUS-PAID-IN> 528,893
<RETAINED-EARNINGS> 203,780
<TOTAL-COMMON-STOCKHOLDERS-EQ> 733,886
70,000
89,703
<LONG-TERM-DEBT-NET> 913,536
<SHORT-TERM-NOTES> 8,295
<LONG-TERM-NOTES-PAYABLE> 0
<COMMERCIAL-PAPER-OBLIGATIONS> 0
<LONG-TERM-DEBT-CURRENT-PORT> 1,753
0
<CAPITAL-LEASE-OBLIGATIONS> 9,263
<LEASES-CURRENT> 12,502
<OTHER-ITEMS-CAPITAL-AND-LIAB> 902,689
<TOT-CAPITALIZATION-AND-LIAB> 2,741,627
<GROSS-OPERATING-REVENUE> 1,342,063
<INCOME-TAX-EXPENSE> 44,394
<OTHER-OPERATING-EXPENSES> 1,187,076
<TOTAL-OPERATING-EXPENSES> 1,231,470
<OPERATING-INCOME-LOSS> 110,593
<OTHER-INCOME-NET> 2,831
<INCOME-BEFORE-INTEREST-EXPEN> 113,424
<TOTAL-INTEREST-EXPENSE> 40,919
<NET-INCOME> 72,505
2,439
<EARNINGS-AVAILABLE-FOR-COMM> 70,066
<COMMON-STOCK-DIVIDENDS> 12,363
<TOTAL-INTEREST-ON-BONDS> 0
<CASH-FLOW-OPERATIONS> 62,962
<EPS-BASIC> 0
<EPS-DILUTED> 0
</TABLE>