<ARTICLE> OPUR1 <MULTIPLIER> 1000 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-END> SEP-30-1999 <BOOK-VALUE> PER-BOOK <TOTAL-NET-UTILITY-PLANT> 453755 <OTHER-PROPERTY-AND-INVEST> 2425 <TOTAL-CURRENT-ASSETS> 82295 <TOTAL-DEFERRED-CHARGES> 475194 <OTHER-ASSETS> 13392 <TOTAL-ASSETS> 1027061 <COMMON> 58485 <CAPITAL-SURPLUS-PAID-IN> 78005 <RETAINED-EARNINGS> 117878 <TOTAL-COMMON-STOCKHOLDERS-EQ> 254368 <PREFERRED-MANDATORY> 28268 <PREFERRED> 0 <LONG-TERM-DEBT-NET> 40000 <SHORT-TERM-NOTES> 18400 <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> 686025 <TOT-CAPITALIZATION-AND-LIAB> 1027061 <GROSS-OPERATING-REVENUE> 303445 <INCOME-TAX-EXPENSE> 15137 <OTHER-OPERATING-EXPENSES> 258984 <TOTAL-OPERATING-EXPENSES> 274121 <OPERATING-INCOME-LOSS> 29324 <OTHER-INCOME-NET> 2696 <INCOME-BEFORE-INTEREST-EXPEN> 32020 <TOTAL-INTEREST-EXPENSE> 11353 <NET-INCOME> 20667 <PREFERRED-STOCK-DIVIDENDS> 1491 <EARNINGS-AVAILABLE-FOR-COMM> 19176 <COMMON-STOCK-DIVIDENDS> 7533 <TOTAL-INTEREST-ON-BONDS> 5765 <CASH-FLOW-OPERATIONS> 27359 <EPS-BASIC> 0 <EPS-DILUTED> 0