<ARTICLE> UT <LEGEND> THE SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE COMPANY'S FINANCIAL RECORDS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. </LEGEND> <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-END> MAR-31-1999 <BOOK-VALUE> PER-BOOK <TOTAL-NET-UTILITY-PLANT> $1,673,721 <OTHER-PROPERTY-AND-INVEST> 88,898 <TOTAL-CURRENT-ASSETS> 162,205 <TOTAL-DEFERRED-CHARGES> 146,260 <OTHER-ASSETS> 0 <TOTAL-ASSETS> 2,071,084 <COMMON> 31,015 <CAPITAL-SURPLUS-PAID-IN> 457,684 <RETAINED-EARNINGS> 194,504 <TOTAL-COMMON-STOCKHOLDERS-EQ> 683,203 <PREFERRED-MANDATORY> 48,500 <PREFERRED> 73,115 <LONG-TERM-DEBT-NET> 616,644 <SHORT-TERM-NOTES> 111,300 <LONG-TERM-NOTES-PAYABLE> 0 <COMMERCIAL-PAPER-OBLIGATIONS> 0 <LONG-TERM-DEBT-CURRENT-PORT> 40,589 <PREFERRED-STOCK-CURRENT> 0 <CAPITAL-LEASE-OBLIGATIONS> 0 <LEASES-CURRENT> 0 <OTHER-ITEMS-CAPITAL-AND-LIAB> 497,733 <TOT-CAPITALIZATION-AND-LIAB> 2,071,084 <GROSS-OPERATING-REVENUE> 194,786 <INCOME-TAX-EXPENSE> 11,285 <OTHER-OPERATING-EXPENSES> 148,403 <TOTAL-OPERATING-EXPENSES> 159,688 <OPERATING-INCOME-LOSS> 35,098 <OTHER-INCOME-NET> 38 <INCOME-BEFORE-INTEREST-EXPEN> 35,136 <TOTAL-INTEREST-EXPENSE> 12,603 <NET-INCOME> 22,533 <PREFERRED-STOCK-DIVIDENDS> 2,408 <EARNINGS-AVAILABLE-FOR-COMM> 20,125 <COMMON-STOCK-DIVIDENDS> 10,550 <TOTAL-INTEREST-ON-BONDS> 0 <CASH-FLOW-OPERATIONS> 52,183 <EPS-PRIMARY> .65 <EPS-DILUTED> .65