WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>


<ARTICLE>  UT
<LEGEND>

                                                                      Exhibit 27

                             CENTRAL ILLINOIS PUBLIC SERVICE COMPANY
                                       10-Q JUNE 30, 2000
                                   FINANCIAL DATA SCHEDULE UT
                  PUBLIC UTILITY COMPANIES AND PUBLIC UTILITY HOLDING COMPANIES
                          APPENDIX E TO ITEM 601 (C) OF REGULATION S-K
                                     (Thousands of Dollars)


</LEGEND>

                                                                                       Value
                                                                                   ---------------

<S>                                                                                   <C>
<PERIOD-TYPE>                                                                               6-MOS
<FISCAL-YEAR-END>                                                                     DEC-31-2000
<PERIOD-END>                                                                          JUN-30-2000
<BOOK-VALUE>                                                                             PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                                                                 826,062
<OTHER-PROPERTY-AND-INVEST>                                                                     0
<TOTAL-CURRENT-ASSETS>                                                                    198,557
<TOTAL-DEFERRED-CHARGES>                                                                  788,306
<OTHER-ASSETS>                                                                              9,765
<TOTAL-ASSETS>                                                                          1,822,690
<COMMON>                                                                                  120,033
<CAPITAL-SURPLUS-PAID-IN>                                                                       0
<RETAINED-EARNINGS>                                                                       422,385
<TOTAL-COMMON-STOCKHOLDERS-EQ>                                                            542,418
<PREFERRED-MANDATORY>                                                                           0
<PREFERRED>                                                                                80,000
<LONG-TERM-DEBT-NET>                                                                      468,116
<SHORT-TERM-NOTES>                                                                              0
<LONG-TERM-NOTES-PAYABLE>                                                                       0
<COMMERCIAL-PAPER-OBLIGATIONS>                                                                  0
<LONG-TERM-DEBT-CURRENT-PORT>                                                              30,000
<PREFERRED-STOCK-CURRENT>                                                                       0
<CAPITAL-LEASE-OBLIGATIONS>                                                                     0
<LEASES-CURRENT>                                                                                0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                                                            702,156
<TOT-CAPITALIZATION-AND-LIAB>                                                           1,822,690
<GROSS-OPERATING-REVENUE>                                                                 450,446
<INCOME-TAX-EXPENSE>                                                                       26,121
<OTHER-OPERATING-EXPENSES>                                                                366,406
<TOTAL-OPERATING-EXPENSES>                                                                392,527
<OPERATING-INCOME-LOSS>                                                                    57,919
<OTHER-INCOME-NET>                                                                          7,816
<INCOME-BEFORE-INTEREST-EXPEN>                                                             65,735
<TOTAL-INTEREST-EXPENSE>                                                                   19,499
<NET-INCOME>                                                                               46,236
<PREFERRED-STOCK-DIVIDENDS>                                                                 1,830
<EARNINGS-AVAILABLE-FOR-COMM>                                                              44,406
<COMMON-STOCK-DIVIDENDS>                                                                   36,114
<TOTAL-INTEREST-ON-BONDS>                                                                       0  <F1>
<CASH-FLOW-OPERATIONS>                                                                    101,668
<EPS-BASIC>                                                                                  0.00  <F2>
<EPS-DILUTED>                                                                                0.00  <F2>


<FN>
<F1>  Required in fiscal year-end only.
<F2>  Information not normally disclosed in financial statements and notes.
</FN>





</TABLE>