Business Segments (Tables)

3 Months Ended

Mar. 31, 2014

Business Segments [Abstract]

Business Segments [Table Text Block]

	Consolidated			Regulated Operations			Investments and Other
Millions
For the Quarter Ended March 31, 2014
Operating Revenue		$296.5			$264.2			$32.3
Fuel and Purchased Power Expense	96.2			96.2			—
Operating and Maintenance Expense	119.8			90.2			29.6
Depreciation Expense	32.2			28.8			3.4
Operating Income (Loss)	48.3			49.0			(0.7		)
Interest Expense	(12.8		)	(11.5		)	(1.3		)
Equity Earnings in ATC	5.1			5.1			—
Other Income	2.0			1.8			0.2
Income (Loss) Before Non-Controlling Interest and Income Taxes	42.6			44.4			(1.8		)
Income Tax Expense (Benefit)	8.8			10.5			(1.7		)
Net Income (Loss)	33.8			33.9			(0.1		)
Less: Non-Controlling Interest in Subsidiaries	0.3			—			0.3
Net Income (Loss) Attributable to ALLETE		$33.5			$33.9		$(0.4)
As of March 31, 2014
Total Assets		$3,749.2			$3,335.5			$413.7
Property, Plant and Equipment – Net		$2,905.1			$2,671.3			$233.8
Accumulated Depreciation		$1,266.7			$1,202.9			$63.8
Capital Additions		$195.2			$193.5			$1.7

NOTE 2.  BUSINESS SEGMENTS (Continued)

	Consolidated			Regulated Operations			Investments and Other
Millions
For the Quarter Ended March 31, 2013
Operating Revenue		$263.8			$241.4			$22.4
Fuel and Purchased Power Expense	86.5			86.5			—
Operating and Maintenance Expense	104.7			82.2			22.5
Depreciation Expense	28.2			26.8			1.4
Operating Income (Loss)	44.4			45.9			(1.5		)
Interest Expense	(12.3		)	(10.7		)	(1.6		)
Equity Earnings in ATC	5.2			5.2			—
Other Income	2.7			1.1			1.6
Income (Loss) Before Non-Controlling Interest and Income Taxes	40.0			41.5			(1.5		)
Income Tax Expense (Benefit)	7.5			9.4			(1.9		)
Net Income	32.5			32.1			0.4
Less: Non-Controlling Interest in Subsidiaries	—			—			—
Net Income Attributable to ALLETE		$32.5			$32.1			$0.4
As of March 31, 2013
Total Assets		$3,251.3			$2,967.9			$283.4
Property, Plant and Equipment – Net		$2,366.7			$2,300.8			$65.9
Accumulated Depreciation		$1,179.8			$1,121.8			$58.0
Capital Additions		$43.1			$42.6			$0.5