<ARTICLE> OPUR1 <MULTIPLIER> 1000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-END> MAR-31-1999 <BOOK-VALUE> PER-BOOK <TOTAL-NET-UTILITY-PLANT> 490265 <OTHER-PROPERTY-AND-INVEST> 2490 <TOTAL-CURRENT-ASSETS> 94748 <TOTAL-DEFERRED-CHARGES> 300476 <OTHER-ASSETS> 12866 <TOTAL-ASSETS> 900845 <COMMON> 58485 <CAPITAL-SURPLUS-PAID-IN> 38004 <RETAINED-EARNINGS> 107643 <TOTAL-COMMON-STOCKHOLDERS-EQ> 204132 <PREFERRED-MANDATORY> 28086 <PREFERRED> 0 <LONG-TERM-DEBT-NET> 162559 <SHORT-TERM-NOTES> 0 <LONG-TERM-NOTES-PAYABLE> 0 <COMMERCIAL-PAPER-OBLIGATIONS> 0 <LONG-TERM-DEBT-CURRENT-PORT> 0 <PREFERRED-STOCK-CURRENT> 0 <CAPITAL-LEASE-OBLIGATIONS> 0 <LEASES-CURRENT> 0 <OTHER-ITEMS-CAPITAL-AND-LIAB> 506068 <TOT-CAPITALIZATION-AND-LIAB> 900845 <GROSS-OPERATING-REVENUE> 109868 <INCOME-TAX-EXPENSE> 5497 <OTHER-OPERATING-EXPENSES> 95277 <TOTAL-OPERATING-EXPENSES> 100774 <OPERATING-INCOME-LOSS> 9094 <OTHER-INCOME-NET> 559 <INCOME-BEFORE-INTEREST-EXPEN> 9653 <TOTAL-INTEREST-EXPENSE> 4165 <NET-INCOME> 5488 <PREFERRED-STOCK-DIVIDENDS> 497 <EARNINGS-AVAILABLE-FOR-COMM> 4991 <COMMON-STOCK-DIVIDENDS> 3766 <TOTAL-INTEREST-ON-BONDS> 2883 <CASH-FLOW-OPERATIONS> 10713 <EPS-PRIMARY> 0 <EPS-DILUTED> 0