<ARTICLE> UT
<LEGEND>
 THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION
 EXTRACTED FROM THE STATEMENT OF INCOME, STATEMENT OF
 CASH FLOWS, BALANCE SHEET AND IS QUALIFIED IN ITS
 ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
       
                                        
<CIK>                               0000018654
<NAME>                                    CIPS
<MULTIPLIER>                             1,000
<PERIOD-TYPE>                            6-MOS
<FISCAL-YEAR-END>                  DEC-31-1998
<PERIOD-START>                     JAN-01-1998
<PERIOD-END>                       JUN-30-1998
<BOOK-VALUE>                          PER-BOOK
<TOTAL-NET-UTILITY-PLANT>            1,475,473
<OTHER-PROPERTY-AND-INVEST>                  0
<TOTAL-CURRENT-ASSETS>                 202,908
<TOTAL-DEFERRED-CHARGES>                29,411
<OTHER-ASSETS>                          48,691
<TOTAL-ASSETS>                       1,756,483
<COMMON>                               120,033
<CAPITAL-SURPLUS-PAID-IN>                    0
<RETAINED-EARNINGS>                    446,554
<TOTAL-COMMON-STOCKHOLDERS-EQ>         566,587
<PREFERRED-MANDATORY>                        0
<PREFERRED>                             80,000
<LONG-TERM-DEBT-NET>                   512,581
<SHORT-TERM-NOTES>                      55,100
<LONG-TERM-NOTES-PAYABLE>                    0
<COMMERCIAL-PAPER-OBLIGATIONS>               0
<LONG-TERM-DEBT-CURRENT-PORT>           55,000
<PREFERRED-STOCK-CURRENT>                    0
<CAPITAL-LEASE-OBLIGATIONS>                  0
<LEASES-CURRENT>                             0
<OTHER-ITEMS-CAPITAL-AND-LIAB>         487,215
<TOT-CAPITALIZATION-AND-LIAB>        1,756,483
<GROSS-OPERATING-REVENUE>              414,344
<INCOME-TAX-EXPENSE>                    15,629
<OTHER-OPERATING-EXPENSES>             348,554
<TOTAL-OPERATING-EXPENSES>             364,183
<OPERATING-INCOME-LOSS>                 50,161
<OTHER-INCOME-NET>                         338
<INCOME-BEFORE-INTEREST-EXPEN>          50,499
<TOTAL-INTEREST-EXPENSE>                19,032
<NET-INCOME>                            31,467
<PREFERRED-STOCK-DIVIDENDS>              1,865
<EARNINGS-AVAILABLE-FOR-COMM>           29,602
<COMMON-STOCK-DIVIDENDS>                34,310
<TOTAL-INTEREST-ON-BONDS>                    0<F1>
<CASH-FLOW-OPERATIONS>                  81,053
<EPS-PRIMARY>                                0<F2>
<EPS-DILUTED>                                0<F2>

<FN>
<F1> REQUIRED ON FISCAL YEAR-END ONLY.
<F2> INFORMATION NOT NORMALLY DISCLOSED IN FINANCIAL STATEMENTS AND NOTES.