<ARTICLE>  UT
<LEGEND>

                                                                      Exhibit 27
                             UNION ELECTRIC COMPANY
                               10-Q MARCH 31, 1999
                           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>

       
                                                          
<PERIOD-TYPE>                                                      3-MOS
<FISCAL-YEAR-END>                                            DEC-31-1999
<PERIOD-END>                                                 MAR-31-1999
<BOOK-VALUE>                                                    PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                                      5,326,469
<OTHER-PROPERTY-AND-INVEST>                                      169,351
<TOTAL-CURRENT-ASSETS>                                           505,778
<TOTAL-DEFERRED-CHARGES>                                          44,506
<OTHER-ASSETS>                                                   768,592
<TOTAL-ASSETS>                                                 6,814,696
<COMMON>                                                         510,619
<CAPITAL-SURPLUS-PAID-IN>                                        701,896
<RETAINED-EARNINGS>                                            1,191,568
<TOTAL-COMMON-STOCKHOLDERS-EQ>                                 2,404,083
<PREFERRED-MANDATORY>                                                  0
<PREFERRED>                                                      155,197
<LONG-TERM-DEBT-NET>                                           1,624,799
<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>                                       50,687
<LEASES-CURRENT>                                                  16,194
<OTHER-ITEMS-CAPITAL-AND-LIAB>                                 2,463,736
<TOT-CAPITALIZATION-AND-LIAB>                                  6,814,696
<GROSS-OPERATING-REVENUE>                                        506,071
<INCOME-TAX-EXPENSE>                                              31,255
<OTHER-OPERATING-EXPENSES>                                       405,929
<TOTAL-OPERATING-EXPENSES>                                       437,184
<OPERATING-INCOME-LOSS>                                           68,887
<OTHER-INCOME-NET>                                                 3,997
<INCOME-BEFORE-INTEREST-EXPEN>                                    72,884
<TOTAL-INTEREST-EXPENSE>                                          29,141
<NET-INCOME>                                                      43,743
<PREFERRED-STOCK-DIVIDENDS>                                        2,204
<EARNINGS-AVAILABLE-FOR-COMM>                                     41,539
<COMMON-STOCK-DIVIDENDS>                                          61,581
<TOTAL-INTEREST-ON-BONDS>                                              0  <F1>
<CASH-FLOW-OPERATIONS>                                           109,786
<EPS-PRIMARY>                                                       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>