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Business Segments
 6 Months Ended
Jun. 30, 2014
Business Segments [Abstract]  
Business Segments [Text Block]
BUSINESS SEGMENTS

Regulated Operations includes our regulated utilities, Minnesota Power and SWL&P, as well as our investment in ATC, a Wisconsin-based regulated utility that owns and maintains electric transmission assets in parts of Wisconsin, Michigan, Minnesota and Illinois. Investments and Other is comprised primarily of BNI Coal, our coal mining operations in North Dakota, ALLETE Properties, our Florida real estate investment, and ALLETE Clean Energy, our business which acquired three wind energy facilities in January 2014, and is aimed at developing or acquiring capital projects that create energy solutions via wind, solar, biomass, midstream gas and oil infrastructure, among other energy-related projects. This segment also includes other business development and corporate expenditures, unallocated interest expense, a small amount of non-rate base generation, approximately 5,000 acres of land in Minnesota, and earnings on cash and investments.
 
Consolidated

Regulated Operations

Investments and Other

Millions
 
 
 
For the Quarter Ended June 30, 2014
 
 
 
Operating Revenue

$260.7


$229.6


$31.1

Fuel and Purchased Power Expense
83.6

83.6

—

Operating and Maintenance Expense
115.1

89.0

26.1

Depreciation Expense
33.8

29.6

4.2

Operating Income
28.2

27.4

0.8

Interest Expense
(13.5
)
(11.4
)
(2.1
)
Equity Earnings in ATC
5.2

5.2

—

Other Income (Expense)
1.9

2.0

(0.1
)
Income (Loss) Before Non-Controlling Interest and Income Taxes
21.8

23.2

(1.4
)
Income Tax Expense (Benefit)
4.9

5.7

(0.8
)
Net Income (Loss)
16.9

17.5

(0.6
)
Less: Non-Controlling Interest in Subsidiaries
0.1

—

0.1

Net Income (Loss) Attributable to ALLETE

$16.8


$17.5

$(0.7)
 
 
 
 
 
Consolidated

Regulated Operations

Investments and Other

Millions
 
 
 
For the Quarter Ended June 30, 2013
 
 
 
Operating Revenue

$235.6


$215.8


$19.8

Fuel and Purchased Power Expense
78.7

78.7

—

Operating and Maintenance Expense
103.8

82.8

21.0

Depreciation Expense
28.7

27.1

1.6

Operating Income (Loss)
24.4

27.2

(2.8
)
Interest Expense
(12.8
)
(10.4
)
(2.4
)
Equity Earnings in ATC
5.0

5.0

—

Other Income
1.5

1.1

0.4

Income (Loss) Before Non-Controlling Interest and Income Taxes
18.1

22.9

(4.8
)
Income Tax Expense (Benefit)
4.1

6.6

(2.5
)
Net Income (Loss)
14.0

16.3

(2.3
)
Less: Non-Controlling Interest in Subsidiaries
—

—

—

Net Income (Loss) Attributable to ALLETE

$14.0


$16.3

$(2.3)
 
 
 
 
 
Consolidated

Regulated Operations

Investments and Other

Millions
 
 
 
For the Six Months Ended June 30, 2014
 
 
 
Operating Revenue

$557.2


$493.8


$63.4

Fuel and Purchased Power Expense
179.8

179.8

—

Operating and Maintenance Expense
234.9

179.2

55.7

Depreciation Expense
66.0

58.4

7.6

Operating Income
76.5

76.4

0.1

Interest Expense
(26.3
)
(22.9
)
(3.4
)
Equity Earnings in ATC
10.3

10.3

—

Other Income
3.9

3.8

0.1

Income (Loss) Before Non-Controlling Interest and Income Taxes
64.4

67.6

(3.2
)
Income Tax Expense (Benefit)
13.7

16.2

(2.5
)
Net Income (Loss)
50.7

51.4

(0.7
)
Less: Non-Controlling Interest in Subsidiaries
0.4

—

0.4

Net Income (Loss) Attributable to ALLETE

$50.3


$51.4

$(1.1)
 
 
 
 
As of June 30, 2014
 
 
 
Total Assets

$3,895.6


$3,424.3


$471.3

Property, Plant and Equipment – Net

$3,020.4


$2,791.7


$228.7

Accumulated Depreciation

$1,288.9


$1,221.1


$67.8

Capital Additions

$341.7


$335.6


$6.1

 
Consolidated

Regulated Operations

Investments and Other

Millions
 
 
 
For the Six Months Ended June 30, 2013
 
 
 
Operating Revenue

$499.4


$457.2


$42.2

Fuel and Purchased Power Expense
165.2

165.2

—

Operating and Maintenance Expense
208.5

165.0

43.5

Depreciation Expense
56.9

53.9

3.0

Operating Income (Loss)
68.8

73.1

(4.3
)
Interest Expense
(25.1
)
(21.1
)
(4.0
)
Equity Earnings in ATC
10.2

10.2

—

Other Income
4.2

2.2

2.0

Income (Loss) Before Non-Controlling Interest and Income Taxes
58.1

64.4

(6.3
)
Income Tax Expense (Benefit)
11.6

16.0

(4.4
)
Net Income (Loss)
46.5

48.4

(1.9
)
Less: Non-Controlling Interest in Subsidiaries
—

—

—

Net Income (Loss) Attributable to ALLETE

$46.5


$48.4

$(1.9)
 
 
 
 
As of June 30, 2013
 

 

 

Total Assets

$3,350.9


$2,997.0


$353.9

Property, Plant and Equipment – Net

$2,397.2


$2,329.6


$67.6

Accumulated Depreciation

$1,202.8


$1,143.2


$59.6

Capital Additions

$100.2


$97.2


$3.0