<TABLE> <S> <C>

<ARTICLE>                     UT
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE DECEMBER
31, 1996 FINANCIAL  STATEMENTS OF INTERSTATE ENERGY CORPORATION AND IS QUALIFIED
IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL  STATEMENTS.  CERTAIN ADJUSTMENTS
HAVE BEEN MADE TO THE PRIOR PERIOD AMOUNTS AS PART OF THE RESTATEMENT TO REFLECT
THE POOLING OF INTERESTS TRANSACTION,  AND A CHANGE IN ACCOUNTING METHOD FOR OIL
AND GAS PROPERTIES FROM THE FULL COST METHOD TO THE SUCCESSFUL EFFORTS METHOD.
</LEGEND>
<RESTATED>
<CIK>      0000352541
<NAME>     INTERSTATE ENERGY CORPORATION
<MULTIPLIER>     1,000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                                    DEC-31-1996
<PERIOD-START>                                       JAN-01-1996
<PERIOD-END>                                         DEC-31-1996
<BOOK-VALUE>                                            PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                              3,096,496
<OTHER-PROPERTY-AND-INVEST>                              592,592
<TOTAL-CURRENT-ASSETS>                                   420,328
<TOTAL-DEFERRED-CHARGES>                                 115,184
<OTHER-ASSETS>                                           415,226
<TOTAL-ASSETS>                                         4,639,826
<COMMON>                                                     758
<CAPITAL-SURPLUS-PAID-IN>                                850,848
<RETAINED-EARNINGS>                                      581,620
<TOTAL-COMMON-STOCKHOLDERS-EQ>                         1,433,226
<PREFERRED-MANDATORY>                                     24,147
<PREFERRED>                                               89,102
<LONG-TERM-DEBT-NET>                                   1,235,075
<SHORT-TERM-NOTES>                                        68,279
<LONG-TERM-NOTES-PAYABLE>                                 56,975
<COMMERCIAL-PAPER-OBLIGATIONS>                           198,200
<LONG-TERM-DEBT-CURRENT-PORT>                             93,324
<PREFERRED-STOCK-CURRENT>                                      0
<CAPITAL-LEASE-OBLIGATIONS>                               19,695
<LEASES-CURRENT>                                          15,139
<OTHER-ITEMS-CAPITAL-AND-LIAB>                         1,406,664
<TOT-CAPITALIZATION-AND-LIAB>                          4,639,826
<GROSS-OPERATING-REVENUE>                              2,232,840
<INCOME-TAX-EXPENSE>                                     105,760 <F1>
<OTHER-OPERATING-EXPENSES>                             1,867,401
<TOTAL-OPERATING-EXPENSES>                             1,867,401 <F1>
<OPERATING-INCOME-LOSS>                                  365,439
<OTHER-INCOME-NET>                                        16,120 <F2>
<INCOME-BEFORE-INTEREST-EXPEN>                           381,559 <F2>
<TOTAL-INTEREST-EXPENSE>                                 113,321
<NET-INCOME>                                             162,478 <F2>
<PREFERRED-STOCK-DIVIDENDS>                                6,687
<EARNINGS-AVAILABLE-FOR-COMM>                            155,791 <F2>
<COMMON-STOCK-DIVIDENDS>                                 143,344
<TOTAL-INTEREST-ON-BONDS>                                 82,245
<CASH-FLOW-OPERATIONS>                                   451,276
<EPS-PRIMARY>                                               2.06 <F3>
<EPS-DILUTED>                                               2.06 <F3>
<FN>
<F1> Income tax expense is not included in Operating Expense in the Consolidated
Statements of Income.

<F2> Includes Discontinued Operations loss of $1,297.

<F3> Includes Discontinued Operations loss of $0.02.
</FN>
                                               


</TABLE>