<ARTICLE>                                           UT
<LEGEND>
     (Replace this text with the legend)
</LEGEND>

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                              DEC-31-2000
<PERIOD-START>                                  JAN-1-2000
<PERIOD-END>                                   JUN-30-2000
<BOOK-VALUE>                                      PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                        1,022,062
<OTHER-PROPERTY-AND-INVEST>                        233,114
<TOTAL-CURRENT-ASSETS>                             194,260
<TOTAL-DEFERRED-CHARGES>                           275,420
<OTHER-ASSETS>                                     103,276
<TOTAL-ASSETS>                                   1,828,132
<COMMON>                                            45,064
<CAPITAL-SURPLUS-PAID-IN>                          111,395
<RETAINED-EARNINGS>                                292,977
<TOTAL-COMMON-STOCKHOLDERS-EQ>                     449,436
<PREFERRED-MANDATORY>                                    0
<PREFERRED>                                         14,791
<LONG-TERM-DEBT-NET>                               422,770
<SHORT-TERM-NOTES>                                       0
<LONG-TERM-NOTES-PAYABLE>                          240,000
<COMMERCIAL-PAPER-OBLIGATIONS>                      46,332
<LONG-TERM-DEBT-CURRENT-PORT>                       19,854
<PREFERRED-STOCK-CURRENT>                                0
<CAPITAL-LEASE-OBLIGATIONS>                              0
<LEASES-CURRENT>                                         0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                     634,949
<TOT-CAPITALIZATION-AND-LIAB>                    1,828,132
<GROSS-OPERATING-REVENUE>                          330,029
<INCOME-TAX-EXPENSE>                                12,960
<OTHER-OPERATING-EXPENSES>                         275,179
<TOTAL-OPERATING-EXPENSES>                         275,179
<OPERATING-INCOME-LOSS>                             54,850
<OTHER-INCOME-NET>                                   3,382
<INCOME-BEFORE-INTEREST-EXPEN>                      58,232
<TOTAL-INTEREST-EXPENSE>                            18,135
<NET-INCOME>                                        27,137
<PREFERRED-STOCK-DIVIDENDS>                            934
<EARNINGS-AVAILABLE-FOR-COMM>                       28,711
<COMMON-STOCK-DIVIDENDS>                            18,868
<TOTAL-INTEREST-ON-BONDS>                            7,097
<CASH-FLOW-OPERATIONS>                              17,125
<EPS-BASIC>                                           1.28
<EPS-DILUTED>                                         1.25