<ARTICLE>           UT
<LEGEND>
THIS SCHEDULE  CONTAINS SUMMARY FINANCIAL  INFORMATION  EXTRACTED FROM BALTIMORE
GAS AND ELECTRIC COMPANY'S JUNE 30, 2000 INTERIM  CONSOLIDATED INCOME STATEMENT,
BALANCE  SHEET AND  STATEMENT  OF CASH FLOWS AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH STATEMENTS.

<CIK>                                                0000009466
<NAME>                                               Baltimore Gas and Electric
                                                     Company
<MULTIPLIER>                                         1,000,000

                                                  
<PERIOD-TYPE>                                        6-MOS
<FISCAL-YEAR-END>                                    DEC-31-2000
<PERIOD-START>                                       JAN-01-2000
<PERIOD-END>                                         JUN-30-2000
<BOOK-VALUE>                                         PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                                            5,559
<OTHER-PROPERTY-AND-INVEST>                                            434
<TOTAL-CURRENT-ASSETS>                                                 608
<TOTAL-DEFERRED-CHARGES>                                               565
<OTHER-ASSETS>                                                           0
<TOTAL-ASSETS>                                                       7,166
<COMMON>                                                             1,496
<CAPITAL-SURPLUS-PAID-IN>                                                0
<RETAINED-EARNINGS>                                                    836
<TOTAL-COMMON-STOCKHOLDERS-EQ>                                       2,332
<PREFERRED-MANDATORY>                                                    0
<PREFERRED>                                                            190
<LONG-TERM-DEBT-NET>                                                 2,120
<SHORT-TERM-NOTES>                                                       0
<LONG-TERM-NOTES-PAYABLE>                                                0
<COMMERCIAL-PAPER-OBLIGATIONS>                                         199
<LONG-TERM-DEBT-CURRENT-PORT>                                          503
<PREFERRED-STOCK-CURRENT>                                                0
<CAPITAL-LEASE-OBLIGATIONS>                                              0
<LEASES-CURRENT>                                                         0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                                       1,822
<TOT-CAPITALIZATION-AND-LIAB>                                        7,166
<GROSS-OPERATING-REVENUE>                                            1,380
<INCOME-TAX-EXPENSE>                                                    65
<OTHER-OPERATING-EXPENSES>                                           1,120
<TOTAL-OPERATING-EXPENSES>                                           1,185
<OPERATING-INCOME-LOSS>                                                195
<OTHER-INCOME-NET>                                                       6
<INCOME-BEFORE-INTEREST-EXPEN>                                         201
<TOTAL-INTEREST-EXPENSE>                                                94
<NET-INCOME>                                                           107
<PREFERRED-STOCK-DIVIDENDS>                                              7
<EARNINGS-AVAILABLE-FOR-COMM>                                          100
<COMMON-STOCK-DIVIDENDS>                                                 0
<TOTAL-INTEREST-ON-BONDS>                                               88
<CASH-FLOW-OPERATIONS>                                                 392
<EPS-BASIC>                                                              0
<EPS-DILUTED>                                                            0