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

  





                                                            Exhibit 27
                             UNION ELECTRIC COMPANY
                             10-K DECEMBER 31, 1998
                           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)


<ARTICLE>  UT 
       
  
                                                       
<PERIOD-TYPE>                                                 12-MOS
<FISCAL-YEAR-END>                                        DEC-31-1998
<PERIOD-END>                                             DEC-31-1998
<BOOK-VALUE>                                                PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                                  5,346,304
<OTHER-PROPERTY-AND-INVEST>                                  161,877
<TOTAL-CURRENT-ASSETS>                                       502,508
<TOTAL-DEFERRED-CHARGES>                                      45,688
<OTHER-ASSETS>                                               773,487
<TOTAL-ASSETS>                                             6,829,864
<COMMON>                                                     510,619
<CAPITAL-SURPLUS-PAID-IN>                                    701,896
<RETAINED-EARNINGS>                                        1,211,610
<TOTAL-COMMON-STOCKHOLDERS-EQ>                             2,424,125
<PREFERRED-MANDATORY>                                              0
<PREFERRED>                                                  155,197
<LONG-TERM-DEBT-NET>                                       1,624,681
<SHORT-TERM-NOTES>                                                 0
<LONG-TERM-NOTES-PAYABLE>                                          0
<COMMERCIAL-PAPER-OBLIGATIONS>                                     0
<LONG-TERM-DEBT-CURRENT-PORT>                                100,000
<PREFERRED-STOCK-CURRENT>                                          0
<CAPITAL-LEASE-OBLIGATIONS>                                   49,630
<LEASES-CURRENT>                                              17,269
<OTHER-ITEMS-CAPITAL-AND-LIAB>                             2,458,962
<TOT-CAPITALIZATION-AND-LIAB>                              6,829,864
<GROSS-OPERATING-REVENUE>                                  2,382,071
<INCOME-TAX-EXPENSE>                                         217,385
<OTHER-OPERATING-EXPENSES>                                 1,736,503
<TOTAL-OPERATING-EXPENSES>                                 1,953,888
<OPERATING-INCOME-LOSS>                                      428,183
<OTHER-INCOME-NET>                                            15,889
<INCOME-BEFORE-INTEREST-EXPEN>                               444,072
<TOTAL-INTEREST-EXPENSE>                                     124,002
<NET-INCOME>                                                 320,070
<PREFERRED-STOCK-DIVIDENDS>                                    8,817
<EARNINGS-AVAILABLE-FOR-COMM>                                311,253
<COMMON-STOCK-DIVIDENDS>                                     259,599
<TOTAL-INTEREST-ON-BONDS>                                    116,011
<CASH-FLOW-OPERATIONS>                                       651,106
<EPS-PRIMARY>                                                   0.00  <F1>
<EPS-DILUTED>                                                   0.00  <F1>

<FN>
<F1> INFORMATION NOT NORMALLY DISCLOSED IN FINANCIAL STATEMENTS AND NOTES.
</FN>