<TABLE> <S> <C>

<ARTICLE>                             OPUR1
<LEGEND>
THIS  SCHEDULE  CONTAINS  SUMMARY  FINANCIAL  INFORMATION  EXTRACTED  FROM  THE
CONSOLIDATED BALANCE SHEET, CONSOLIDATED STATEMENT OF INCOME AND CONSOLIDATED
STATEMENT OF CASH FLOWS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER>                                                        1,000

<S>                                                         <C>
<PERIOD-TYPE>                                            6-MOS
<FISCAL-YEAR-END>                                        DEC-31-1999
<PERIOD-START>                                           APR-01-1999
<PERIOD-END>                                             JUN-30-1999
<BOOK-VALUE>                                             PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                                  $923,363
<OTHER-PROPERTY-AND-INVEST>                                 $87,154
<TOTAL-CURRENT-ASSETS>                                     $112,302
<TOTAL-DEFERRED-CHARGES>                                   $171,885
<OTHER-ASSETS>                                                   $0
<TOTAL-ASSETS>                                           $1,294,704
<COMMON>                                                    $87,775
<CAPITAL-SURPLUS-PAID-IN>                                  $251,155
<RETAINED-EARNINGS>                                        $142,002
<TOTAL-COMMON-STOCKHOLDERS-EQ>                             $480,932
<PREFERRED-MANDATORY>                                       $35,000
<PREFERRED>                                                 $21,030
<LONG-TERM-DEBT-NET>                                       $382,547
<SHORT-TERM-NOTES>                                               $0
<LONG-TERM-NOTES-PAYABLE>                                      $750
<COMMERCIAL-PAPER-OBLIGATIONS>                                   $0
<LONG-TERM-DEBT-CURRENT-PORT>                                $3,313
<PREFERRED-STOCK-CURRENT>                                        $0
<CAPITAL-LEASE-OBLIGATIONS>                                      $0
<LEASES-CURRENT>                                                 $0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                             $371,132
<TOT-CAPITALIZATION-AND-LIAB>                            $1,294,704
<GROSS-OPERATING-REVENUE>                                  $263,506
<INCOME-TAX-EXPENSE>                                        $16,729
<OTHER-OPERATING-EXPENSES>                                 $207,308
<TOTAL-OPERATING-EXPENSES>                                 $224,037
<OPERATING-INCOME-LOSS>                                     $39,469
<OTHER-INCOME-NET>                                           $3,111
<INCOME-BEFORE-INTEREST-EXPEN>                              $42,580
<TOTAL-INTEREST-EXPENSE>                                    $14,039
<NET-INCOME>                                                $28,541
<PREFERRED-STOCK-DIVIDENDS>                                  $1,615
<EARNINGS-AVAILABLE-FOR-COMM>                               $26,926
<COMMON-STOCK-DIVIDENDS>                                    $18,211
<TOTAL-INTEREST-ON-BONDS>                                        $0
<CASH-FLOW-OPERATIONS>                                      $70,349
<EPS-BASIC>                                                 $1.59
<EPS-DILUTED>                                                    $0



</TABLE>