<ARTICLE> UT
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MINNESOTA
POWER'S CONSOLIDATED BALANCE SHEET, STATEMENT OF INCOME, AND STATEMENT OF CASH
FLOW FOR THE PERIOD ENDED JUNE 30, 1998 AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               JUN-30-1998
<BOOK-VALUE>                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                        1,101
<OTHER-PROPERTY-AND-INVEST>                        438
<TOTAL-CURRENT-ASSETS>                             497
<TOTAL-DEFERRED-CHARGES>                            60
<OTHER-ASSETS>                                     223
<TOTAL-ASSETS>                                   2,319
<COMMON>                                           430
<CAPITAL-SURPLUS-PAID-IN>                            0
<RETAINED-EARNINGS>                                305
<TOTAL-COMMON-STOCKHOLDERS-EQ>                     673
<PREFERRED-MANDATORY>                               75
<PREFERRED>                                         32
<LONG-TERM-DEBT-NET>                               682
<SHORT-TERM-NOTES>                                 188
<LONG-TERM-NOTES-PAYABLE>                            0
<COMMERCIAL-PAPER-OBLIGATIONS>                       0
<LONG-TERM-DEBT-CURRENT-PORT>                        4
<PREFERRED-STOCK-CURRENT>                            0
<CAPITAL-LEASE-OBLIGATIONS>                          0
<LEASES-CURRENT>                                     0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                     603
<TOT-CAPITALIZATION-AND-LIAB>                    2,319
<GROSS-OPERATING-REVENUE>                          516
<INCOME-TAX-EXPENSE>                                28
<OTHER-OPERATING-EXPENSES>                         416
<TOTAL-OPERATING-EXPENSES>                         452
<OPERATING-INCOME-LOSS>                             72
<OTHER-INCOME-NET>                                   5<F1>
<INCOME-BEFORE-INTEREST-EXPEN>                      77
<TOTAL-INTEREST-EXPENSE>                            36
<NET-INCOME>                                        41
<PREFERRED-STOCK-DIVIDENDS>                          1
<EARNINGS-AVAILABLE-FOR-COMM>                       40
<COMMON-STOCK-DIVIDENDS>                            32
<TOTAL-INTEREST-ON-BONDS>                            0
<CASH-FLOW-OPERATIONS>                              41
<EPS-PRIMARY>                                     1.29
<EPS-DILUTED>                                     1.29
<FN>
<F1>Includes $8 million of Income from Equity Investments and $3 million of
Distributions on Redeemable Preferred Securities of Subsidiary.
</FN>