<ARTICLE> UT
<LEGEND>
THIS SCHEDULE  CONTAINS SUMMARY FINANCIAL  INFORMATION  EXTRACTED FROM BALTIMORE
GAS AND ELECTRIC COMPANY'S MARCH 31, 2000 INTERIM CONSOLIDATED INCOME STATEMENT,
BALANCE  SHEET AND  STATEMENT  OF CASH FLOWS AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH STATEMENTS.
</LEGEND>
<CIK>                                                0000009466
<NAME>                                               Baltimore Gas and Electric
                                                     Company
<MULTIPLIER>                                         1,000,000

                                                  
<PERIOD-TYPE>                                        3-MOS
<FISCAL-YEAR-END>                                    DEC-31-2000
<PERIOD-START>                                       JAN-01-2000
<PERIOD-END>                                         MAR-31-2000
<BOOK-VALUE>                                         PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                                            5,511
<OTHER-PROPERTY-AND-INVEST>                                            419
<TOTAL-CURRENT-ASSETS>                                                 564
<TOTAL-DEFERRED-CHARGES>                                               640
<OTHER-ASSETS>                                                           0
<TOTAL-ASSETS>                                                       7,134
<COMMON>                                                             1,495
<CAPITAL-SURPLUS-PAID-IN>                                                0
<RETAINED-EARNINGS>                                                    850
<TOTAL-COMMON-STOCKHOLDERS-EQ>                                       2,345
<PREFERRED-MANDATORY>                                                    0
<PREFERRED>                                                            190
<LONG-TERM-DEBT-NET>                                                 2,119
<SHORT-TERM-NOTES>                                                       0
<LONG-TERM-NOTES-PAYABLE>                                                0
<COMMERCIAL-PAPER-OBLIGATIONS>                                          88
<LONG-TERM-DEBT-CURRENT-PORT>                                          544
<PREFERRED-STOCK-CURRENT>                                                0
<CAPITAL-LEASE-OBLIGATIONS>                                              0
<LEASES-CURRENT>                                                         0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                                       1,848
<TOT-CAPITALIZATION-AND-LIAB>                                        7,134
<GROSS-OPERATING-REVENUE>                                              721
<INCOME-TAX-EXPENSE>                                                    36
<OTHER-OPERATING-EXPENSES>                                             587
<TOTAL-OPERATING-EXPENSES>                                             623
<OPERATING-INCOME-LOSS>                                                 98
<OTHER-INCOME-NET>                                                       3
<INCOME-BEFORE-INTEREST-EXPEN>                                         101
<TOTAL-INTEREST-EXPENSE>                                                47
<NET-INCOME>                                                            54
<PREFERRED-STOCK-DIVIDENDS>                                              3
<EARNINGS-AVAILABLE-FOR-COMM>                                           51
<COMMON-STOCK-DIVIDENDS>                                                63
<TOTAL-INTEREST-ON-BONDS>                                               44
<CASH-FLOW-OPERATIONS>                                                 256
<EPS-BASIC>                                                              0
<EPS-DILUTED>                                                            0