<TABLE> <S> <C>

<ARTICLE> UT
<LEGEND>
                                                                      Exhibit 27
                             UNION ELECTRIC COMPANY
                               10-Q MARCH 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)

</LEGEND>
       



<S>                                                                 <C>
<PERIOD-TYPE>                                                              3-MOS
<FISCAL-YEAR-END>                                                    DEC-31-1998
<PERIOD-END>                                                         MAR-31-1998
<BOOK-VALUE>                                                            PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                                              5,363,232
<OTHER-PROPERTY-AND-INVEST>                                              147,304
<TOTAL-CURRENT-ASSETS>                                                   437,094
<TOTAL-DEFERRED-CHARGES>                                                  42,839
<OTHER-ASSETS>                                                           785,787
<TOTAL-ASSETS>                                                         6,776,256
<COMMON>                                                                 510,619
<CAPITAL-SURPLUS-PAID-IN>                                                701,896
<RETAINED-EARNINGS>                                                    1,126,473
<TOTAL-COMMON-STOCKHOLDERS-EQ>                                         2,338,988
<PREFERRED-MANDATORY>                                                          0
<PREFERRED>                                                              155,197
<LONG-TERM-DEBT-NET>                                                   1,797,250
<SHORT-TERM-NOTES>                                                        43,000
<LONG-TERM-NOTES-PAYABLE>                                                      0
<COMMERCIAL-PAPER-OBLIGATIONS>                                                 0
<LONG-TERM-DEBT-CURRENT-PORT>                                                  0
<PREFERRED-STOCK-CURRENT>                                                      0
<CAPITAL-LEASE-OBLIGATIONS>                                               78,247
<LEASES-CURRENT>                                                          30,687
<OTHER-ITEMS-CAPITAL-AND-LIAB>                                         2,332,887
<TOT-CAPITALIZATION-AND-LIAB>                                          6,776,256
<GROSS-OPERATING-REVENUE>                                                478,585
<INCOME-TAX-EXPENSE>                                                      24,432
<OTHER-OPERATING-EXPENSES>                                               392,033
<TOTAL-OPERATING-EXPENSES>                                               416,465
<OPERATING-INCOME-LOSS>                                                   62,120
<OTHER-INCOME-NET>                                                           498
<INCOME-BEFORE-INTEREST-EXPEN>                                            62,618
<TOTAL-INTEREST-EXPENSE>                                                  32,316
<NET-INCOME>                                                              30,302
<PREFERRED-STOCK-DIVIDENDS>                                                2,204
<EARNINGS-AVAILABLE-FOR-COMM>                                             28,098
<COMMON-STOCK-DIVIDENDS>                                                  61,581
<TOTAL-INTEREST-ON-BONDS> <F1>                                                 0
<CASH-FLOW-OPERATIONS>                                                    61,844
<EPS-PRIMARY>                                                               0.00<F2>
<EPS-DILUTED>                                                               0.00<F2>
        

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


</TABLE>