<ARTICLE> UT
<LEGEND>
THIS SECTION OF THE SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED
FROM THE CONSOLIDATED FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>

                                        
<MULTIPLIER>                                     1,000
<PERIOD-TYPE>                                    6-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-END>                               JUN-30-2000
<BOOK-VALUE>                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                    1,029,270
<OTHER-PROPERTY-AND-INVEST>                          0
<TOTAL-CURRENT-ASSETS>                          28,353
<TOTAL-DEFERRED-CHARGES>                        45,883
<OTHER-ASSETS>                                       0
<TOTAL-ASSETS>                               1,103,506
<COMMON>                                        85,474
<CAPITAL-SURPLUS-PAID-IN>                      192,717
<RETAINED-EARNINGS>                             77,452
<TOTAL-COMMON-STOCKHOLDERS-EQ>                 355,643
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<LONG-TERM-DEBT-NET>                           436,725
<SHORT-TERM-NOTES>                                   0
<LONG-TERM-NOTES-PAYABLE>                            0
<COMMERCIAL-PAPER-OBLIGATIONS>                  39,677
<LONG-TERM-DEBT-CURRENT-PORT>                   31,000
<PREFERRED-STOCK-CURRENT>                            0
<CAPITAL-LEASE-OBLIGATIONS>                     15,130
<LEASES-CURRENT>                                   522
<OTHER-ITEMS-CAPITAL-AND-LIAB>                 224,809
<TOT-CAPITALIZATION-AND-LIAB>                1,103,506
<GROSS-OPERATING-REVENUE>                      113,025
<INCOME-TAX-EXPENSE>                            17,205
<OTHER-OPERATING-EXPENSES>                      48,467
<TOTAL-OPERATING-EXPENSES>                      65,672
<OPERATING-INCOME-LOSS>                         47,353
<OTHER-INCOME-NET>                                 197
<INCOME-BEFORE-INTEREST-EXPEN>                  47,550
<TOTAL-INTEREST-EXPENSE>                        20,379
<NET-INCOME>                                    27,171
<PREFERRED-STOCK-DIVIDENDS>                          0
<EARNINGS-AVAILABLE-FOR-COMM>                   27,171
<COMMON-STOCK-DIVIDENDS>                             0
<TOTAL-INTEREST-ON-BONDS>                       14,645
<CASH-FLOW-OPERATIONS>                          64,416
<EPS-BASIC>                                     27,171
<EPS-DILUTED>                                   27,171