<ARTICLE> UT
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE BALANCE
SHEET, INCOME STATEMENT AND CASH FLOW STATEMENT OF ILLINOIS POWER COMPANY AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO THE BALANCE SHEET, INCOME STATEMENT
AND CASH FLOW STATEMENT OF ILLINOIS POWER COMPANY.
</LEGEND>
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               DEC-31-1999
<BOOK-VALUE>                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                        1,765
<OTHER-PROPERTY-AND-INVEST>                         13
<TOTAL-CURRENT-ASSETS>                             441
<TOTAL-DEFERRED-CHARGES>                         3,079
<OTHER-ASSETS>                                       0
<TOTAL-ASSETS>                                   5,298
<COMMON>                                           940
<CAPITAL-SURPLUS-PAID-IN>                            0
<RETAINED-EARNINGS>                                 55
<TOTAL-COMMON-STOCKHOLDERS-EQ>                   1,035
<PREFERRED-MANDATORY>                              193
<PREFERRED>                                         46
<LONG-TERM-DEBT-NET>                             1,906
<SHORT-TERM-NOTES>                                  25
<LONG-TERM-NOTES-PAYABLE>                            0
<COMMERCIAL-PAPER-OBLIGATIONS>                     302
<LONG-TERM-DEBT-CURRENT-PORT>                      236
<PREFERRED-STOCK-CURRENT>                            0
<CAPITAL-LEASE-OBLIGATIONS>                          0
<LEASES-CURRENT>                                     0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                   1,555
<TOT-CAPITALIZATION-AND-LIAB>                    5,298
<GROSS-OPERATING-REVENUE>                        1,903
<INCOME-TAX-EXPENSE>                                64
<OTHER-OPERATING-EXPENSES>                       1,631
<TOTAL-OPERATING-EXPENSES>                       1,605
<OPERATING-INCOME-LOSS>                            218
<OTHER-INCOME-NET>                                  39
<INCOME-BEFORE-INTEREST-EXPEN>                     257
<TOTAL-INTEREST-EXPENSE>                           144
<NET-INCOME>                                       113
<PREFERRED-STOCK-DIVIDENDS>                         17
<EARNINGS-AVAILABLE-FOR-COMM>                       96
<COMMON-STOCK-DIVIDENDS>                            41
<TOTAL-INTEREST-ON-BONDS>                          120
<CASH-FLOW-OPERATIONS>                             150
<EPS-BASIC>                                          0
<EPS-DILUTED>                                        0