<ARTICLE> UT

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               JUN-30-1999
<BOOK-VALUE>                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                      293,891
<OTHER-PROPERTY-AND-INVEST>                      8,496
<TOTAL-CURRENT-ASSETS>                          29,460
<TOTAL-DEFERRED-CHARGES>                        18,066
<OTHER-ASSETS>                                  13,146
<TOTAL-ASSETS>                                 363,059
<COMMON>                                        29,806
<CAPITAL-SURPLUS-PAID-IN>                       64,341
<RETAINED-EARNINGS>                             40,838
<TOTAL-COMMON-STOCKHOLDERS-EQ>                 134,985
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<LONG-TERM-DEBT-NET>                           120,000
<SHORT-TERM-NOTES>                              16,769
<LONG-TERM-NOTES-PAYABLE>                            0
<COMMERCIAL-PAPER-OBLIGATIONS>                       0
<LONG-TERM-DEBT-CURRENT-PORT>                       15
<PREFERRED-STOCK-CURRENT>                            0
<CAPITAL-LEASE-OBLIGATIONS>                      1,021
<LEASES-CURRENT>                                   646
<OTHER-ITEMS-CAPITAL-AND-LIAB>                  89,623
<TOT-CAPITALIZATION-AND-LIAB>                  363,059
<GROSS-OPERATING-REVENUE>                      113,573
<INCOME-TAX-EXPENSE>                             7,782
<OTHER-OPERATING-EXPENSES>                      89,904
<TOTAL-OPERATING-EXPENSES>                      97,686
<OPERATING-INCOME-LOSS>                         15,887
<OTHER-INCOME-NET>                               (463)
<INCOME-BEFORE-INTEREST-EXPEN>                  15,424
<TOTAL-INTEREST-EXPENSE>                         4,505
<NET-INCOME>                                    10,919
<PREFERRED-STOCK-DIVIDENDS>                          0
<EARNINGS-AVAILABLE-FOR-COMM>                   10,919
<COMMON-STOCK-DIVIDENDS>                         6,255
<TOTAL-INTEREST-ON-BONDS>                        4,266
<CASH-FLOW-OPERATIONS>                          62,905
<EPS-BASIC>                                       1.22
<EPS-DILUTED>                                     1.22