<TABLE> <S> <C>


<ARTICLE>  UT
<LEGEND>

                                                                     Exhibit 27

                             UNION ELECTRIC COMPANY
                             10-Q SEPTEMBER 30, 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)


</LEGEND>
       

<S>                                              <C>
 
<PERIOD-TYPE>                                            9-MOS
<FISCAL-YEAR-END>                                  DEC-31-1998
<PERIOD-END>                                       SEP-30-1998
<BOOK-VALUE>                                          PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                            5,338,722
<OTHER-PROPERTY-AND-INVEST>                            141,084
<TOTAL-CURRENT-ASSETS>                                 818,935
<TOTAL-DEFERRED-CHARGES>                                43,216
<OTHER-ASSETS>                                         776,668
<TOTAL-ASSETS>                                       7,118,625
<COMMON>                                               510,619
<CAPITAL-SURPLUS-PAID-IN>                              701,896
<RETAINED-EARNINGS>                                  1,265,067
<TOTAL-COMMON-STOCKHOLDERS-EQ>                       2,477,582
<PREFERRED-MANDATORY>                                        0
<PREFERRED>                                            155,197
<LONG-TERM-DEBT-NET>                                 1,722,550
<SHORT-TERM-NOTES>                                           0
<LONG-TERM-NOTES-PAYABLE>                                    0
<COMMERCIAL-PAPER-OBLIGATIONS>                               0
<LONG-TERM-DEBT-CURRENT-PORT>                          160,000
<PREFERRED-STOCK-CURRENT>                                    0
<CAPITAL-LEASE-OBLIGATIONS>                             60,323
<LEASES-CURRENT>                                        14,102
<OTHER-ITEMS-CAPITAL-AND-LIAB>                       2,528,871
<TOT-CAPITALIZATION-AND-LIAB>                        7,118,625
<GROSS-OPERATING-REVENUE>                            1,913,698
<INCOME-TAX-EXPENSE>                                   201,717
<OTHER-OPERATING-EXPENSES>                           1,323,296
<TOTAL-OPERATING-EXPENSES>                           1,525,013
<OPERATING-INCOME-LOSS>                                388,685
<OTHER-INCOME-NET>                                       7,412
<INCOME-BEFORE-INTEREST-EXPEN>                         396,097
<TOTAL-INTEREST-EXPENSE>                                92,993
<NET-INCOME>                                           303,104
<PREFERRED-STOCK-DIVIDENDS>                              6,613
<EARNINGS-AVAILABLE-FOR-COMM>                          296,491
<COMMON-STOCK-DIVIDENDS>                               191,380
<TOTAL-INTEREST-ON-BONDS>                                    0  <F1>
<CASH-FLOW-OPERATIONS>                                 476,876
<EPS-PRIMARY>                                             0.00  <F2>
<EPS-DILUTED>                                             0.00  <F2>

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


</TABLE>