Consolidated Balance Sheet (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Current Assets
Cash and Cash Equivalents	$ 101.1	$ 44.9
Short-Term Investments	0	6.7
Accounts Receivable (Less Allowance of $0.9 and $0.9)	79.7	99.5
Inventories	69.1	60.0
Prepayments and Other	27.1	28.6
Total Current Assets	277.0	239.7
Property, Plant and Equipment - Net	1,982.7	1,805.6
Regulatory Assets	345.9	310.2
Investment in ATC	98.9	93.3
Other Investments	132.3	126.0
Other Non-Current Assets	39.2	34.3
Total Assets	2,876.0	2,609.1
Current Liabilities
Accounts Payable	71.8	75.4
Accrued Taxes	26.4	22.0
Accrued Interest	12.8	13.4
Long-Term Debt Due Within One Year	5.4	13.4
Notes Payable	1.1	1.0
Other	45.6	33.7
Total Current Liabilities	163.1	158.9
Long-Term Debt	857.9	771.6
Deferred Income Taxes	373.6	325.2
Regulatory Liabilities	43.5	43.6
Defined Benefit Pension and Other Postretirement Benefit Plans	253.5	231.4
Other Non-Current Liabilities	105.1	93.4
Total Liabilities	1,796.7	1,624.1
Commitments and Contingencies (Note 11)
ALLETE's Equity
Common Stock Without Par Value, 80.0 Shares Authorized, 37.5 and 35.8 Shares Outstanding	705.6	636.1
Unearned ESOP Shares	(29.0)	(36.8)
Accumulated Other Comprehensive Loss	(28.9)	(23.2)
Retained Earnings	431.6	399.9
Total ALLETE Equity	1,079.3	976.0
Non-Controlling Interest in Subsidiaries	0	9.0
Total Equity	1,079.3	985.0
Total Liabilities and Equity	$ 2,876.0	$ 2,609.1