<ARTICLE> UT
<LEGEND>
                                                                 EXHIBIT 27.01

This schedule  contains  summary  financial  information  extracted  from  the
Statements  of  Income and Retained Earnings,  Balance  Sheets  and Statements
of  Cash Flows and is qualified in its entirety by reference to such financial
statements.

</LEGEND>
<MULTIPLIER>                    1,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>               DEC-31-1999
<PERIOD-END>                    JUN-30-2000
<BOOK-VALUE>                    PER-BOOK
<TOTAL-NET-UTILITY-PLANT>           779,648
<OTHER-PROPERTY-AND-INVEST>          11,776
<TOTAL-CURRENT-ASSETS>               71,563
<TOTAL-DEFERRED-CHARGES>             55,594
<OTHER-ASSETS>                            0
<TOTAL-ASSETS>                      918,581
<COMMON>                             93,300
<CAPITAL-SURPLUS-PAID-IN>            33,417
<RETAINED-EARNINGS>                 263,556
<TOTAL-COMMON-STOCKHOLDERS-EQ>      390,273
<PREFERRED-MANDATORY>                     0
<PREFERRED>                               0
<LONG-TERM-DEBT-NET>                231,994
<SHORT-TERM-NOTES>                   64,300
<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>      232,014
<TOT-CAPITALIZATION-AND-LIAB>       918,581
<GROSS-OPERATING-REVENUE>           257,955
<INCOME-TAX-EXPENSE>                 10,655
<OTHER-OPERATING-EXPENSES>          221,884
<TOTAL-OPERATING-EXPENSES>          232,539
<OPERATING-INCOME-LOSS>              25,416
<OTHER-INCOME-NET>                      725
<INCOME-BEFORE-INTEREST-EXPEN>       26,141
<TOTAL-INTEREST-EXPENSE>              9,346
<NET-INCOME>                         16,795
<PREFERRED-STOCK-DIVIDENDS>               0
<EARNINGS-AVAILABLE-FOR-COMM>        16,795
<COMMON-STOCK-DIVIDENDS>             13,498
<TOTAL-INTEREST-ON-BONDS>             8,093
<CASH-FLOW-OPERATIONS>               50,474
<EPS-BASIC>                         19.09
<EPS-DILUTED>                         19.09