<ARTICLE> UT
<LEGEND>
Accounting Change
The Company changed its method of accounting to accrue the amount of revenue for
sales unbilled at the end of each month.  The cumulative effect of the change on
prior years, net of income taxes, $6,293, is included in net income for 1995.
</LEGEND>
<MULTIPLIER> 1000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1995
<PERIOD-END>                               JUN-30-1995
<BOOK-VALUE>                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                      675,120
<OTHER-PROPERTY-AND-INVEST>                     78,077
<TOTAL-CURRENT-ASSETS>                         109,534
<TOTAL-DEFERRED-CHARGES>                        48,631
<OTHER-ASSETS>                                       0
<TOTAL-ASSETS>                                 911,362
<COMMON>                                        78,226
<CAPITAL-SURPLUS-PAID-IN>                            0
<RETAINED-EARNINGS>                            229,047
<TOTAL-COMMON-STOCKHOLDERS-EQ>                 307,273
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                     19,514
<LONG-TERM-DEBT-NET>                           275,199
<SHORT-TERM-NOTES>                                   0
<LONG-TERM-NOTES-PAYABLE>                       27,110
<COMMERCIAL-PAPER-OBLIGATIONS>                       0
<LONG-TERM-DEBT-CURRENT-PORT>                   38,954
<PREFERRED-STOCK-CURRENT>                            0
<CAPITAL-LEASE-OBLIGATIONS>                          0
<LEASES-CURRENT>                                     0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                 243,312
<TOT-CAPITALIZATION-AND-LIAB>                  911,362
<GROSS-OPERATING-REVENUE>                      164,284
<INCOME-TAX-EXPENSE>                             6,913
<OTHER-OPERATING-EXPENSES>                     132,111
<TOTAL-OPERATING-EXPENSES>                     139,024
<OPERATING-INCOME-LOSS>                         25,260
<OTHER-INCOME-NET>                               2,910
<INCOME-BEFORE-INTEREST-EXPEN>                  28,170
<TOTAL-INTEREST-EXPENSE>                         9,978
<NET-INCOME>                                    18,192
<PREFERRED-STOCK-DIVIDENDS>                        550
<EARNINGS-AVAILABLE-FOR-COMM>                   23,935
<COMMON-STOCK-DIVIDENDS>                        13,313
<TOTAL-INTEREST-ON-BONDS>                        9,311
<CASH-FLOW-OPERATIONS>                           3,218
<EPS-PRIMARY>                                     1.52
<EPS-DILUTED>                                     1.52