<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-31-1998
<PERIOD-END>                    JUN-30-1999
<BOOK-VALUE>                       PER-BOOK

<TOTAL-NET-UTILITY-PLANT>           720,968
<OTHER-PROPERTY-AND-INVEST>           9,984
<TOTAL-CURRENT-ASSETS>               64,326
<TOTAL-DEFERRED-CHARGES>             54,771
<OTHER-ASSETS>                            0
<TOTAL-ASSETS>                      850,049
<COMMON>                             86,200
<CAPITAL-SURPLUS-PAID-IN>            10,541
<RETAINED-EARNINGS>                 254,895
<TOTAL-COMMON-STOCKHOLDERS-EQ>      351,636
<PREFERRED-MANDATORY>                     0
<PREFERRED>                               0
<LONG-TERM-DEBT-NET>                231,906
<SHORT-TERM-NOTES>                   40,400
<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>      226,107
<TOT-CAPITALIZATION-AND-LIAB>       850,049
<GROSS-OPERATING-REVENUE>           246,042
<INCOME-TAX-EXPENSE>                 11,850
<OTHER-OPERATING-EXPENSES>          207,703
<TOTAL-OPERATING-EXPENSES>          219,553
<OPERATING-INCOME-LOSS>              26,489
<OTHER-INCOME-NET>                      134
<INCOME-BEFORE-INTEREST-EXPEN>       26,623
<TOTAL-INTEREST-EXPENSE>              9,120
<NET-INCOME>                         17,503
<PREFERRED-STOCK-DIVIDENDS>               0
<EARNINGS-AVAILABLE-FOR-COMM>        17,503
<COMMON-STOCK-DIVIDENDS>             13,498
<TOTAL-INTEREST-ON-BONDS>             8,092
<CASH-FLOW-OPERATIONS>               60,826
<EPS-BASIC>                         20.31
<EPS-DILUTED>                         20.31