<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>                  YEAR
<FISCAL-YEAR-END>              DEC-31-1997
<PERIOD-START>                 JAN-01-1997
<PERIOD-END>                   DEC-31-1997
<BOOK-VALUE>                      PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                        1,487,803
<OTHER-PROPERTY-AND-INVEST>                              0
<TOTAL-CURRENT-ASSETS>                             217,168
<TOTAL-DEFERRED-CHARGES>                            30,476<F1>
<OTHER-ASSETS>                                      53,260
<TOTAL-ASSETS>                                   1,788,707
<COMMON>                                           121,282
<CAPITAL-SURPLUS-PAID-IN>                                0
<RETAINED-EARNINGS>                                451,477
<TOTAL-COMMON-STOCKHOLDERS-EQ>                     572,759
<PREFERRED-MANDATORY>                                    0
<PREFERRED>                                         80,000
<LONG-TERM-DEBT-NET>                               558,474
<SHORT-TERM-NOTES>                                  64,966
<LONG-TERM-NOTES-PAYABLE>                                0
<COMMERCIAL-PAPER-OBLIGATIONS>                           0
<LONG-TERM-DEBT-CURRENT-PORT>                        9,000
<PREFERRED-STOCK-CURRENT>                                0
<CAPITAL-LEASE-OBLIGATIONS>                              0
<LEASES-CURRENT>                                         0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                     503,508
<TOT-CAPITALIZATION-AND-LIAB>                    1,788,707
<GROSS-OPERATING-REVENUE>                          852,075
<INCOME-TAX-EXPENSE>                                33,661
<OTHER-OPERATING-EXPENSES>                         715,919
<TOTAL-OPERATING-EXPENSES>                         749,580<F2>
<OPERATING-INCOME-LOSS>                            102,495
<OTHER-INCOME-NET>                                  (3,017)
<INCOME-BEFORE-INTEREST-EXPEN>                      99,478
<TOTAL-INTEREST-EXPENSE>                            36,005
<NET-INCOME>                                        38,620
<PREFERRED-STOCK-DIVIDENDS>                          3,715
<EARNINGS-AVAILABLE-FOR-COMM>                       34,905
<COMMON-STOCK-DIVIDENDS>                            43,300
<TOTAL-INTEREST-ON-BONDS>                           33,914
<CASH-FLOW-OPERATIONS>                              66,319
<EPS-PRIMARY>                                            0<F1>
<EPS-DILUTED>                                            0<F1>

<FN>
<F1> INFORMATION NOT NORMALLY DISCLOSED IN FINANCIAL STATEMENTS AND NOTES.
<F2> INCLUDES INCOME TAX EXPENSE.
</FN>