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Business Segments (Tables)
 9 Months Ended
Sep. 30, 2014
Business Segments [Abstract]  
Business Segments [Table Text Block]
 
Consolidated

Regulated Operations

Investments and Other

Millions
 
 
 
For the Quarter Ended September 30, 2014
 
 
 
Operating Revenue

$288.9


$255.8


$33.1

Fuel and Purchased Power Expense
88.9

88.9

—

Operating and Maintenance Expense
105.7

79.4

26.3

Depreciation Expense
33.5

28.5

5.0

Operating Income
60.8

59.0

1.8

Interest Expense
(13.2
)
(11.8
)
(1.4
)
Equity Earnings in ATC
5.3

5.3

—

Other Income
2.1

2.1

—

Income Before Non-Controlling Interest and Income Taxes
55.0

54.6

0.4

Income Tax Expense
13.4

13.4

—

Net Income
41.6

41.2

0.4

Less: Non-Controlling Interest in Subsidiaries
—

—

—

Net Income Attributable to ALLETE

$41.6


$41.2


$0.4


NOTE 2.  BUSINESS SEGMENTS (Continued)

 
Consolidated

Regulated Operations

Investments and Other

Millions
 
 
 
For the Quarter Ended September 30, 2013
 
 
 
Operating Revenue

$251.0


$226.4


$24.6

Fuel and Purchased Power Expense
80.5

80.5

—

Operating and Maintenance Expense
102.7

78.6

24.1

Depreciation Expense
29.4

27.9

1.5

Operating Income (Loss)
38.4

39.4

(1.0
)
Interest Expense
(12.7
)
(10.4
)
(2.3
)
Equity Earnings in ATC
4.9

4.9

—

Other Income
3.3

1.2

2.1

Income (Loss) Before Non-Controlling Interest and Income Taxes
33.9

35.1

(1.2
)
Income Tax Expense (Benefit)
8.7

10.5

(1.8
)
Net Income
25.2

24.6

0.6

Less: Non-Controlling Interest in Subsidiaries
—

—

—

Net Income Attributable to ALLETE

$25.2


$24.6


$0.6

 
Consolidated

Regulated Operations

Investments and Other

Millions
 
 
 
For the Nine Months Ended September 30, 2014
 
 
 
Operating Revenue

$846.1


$749.6


$96.5

Fuel and Purchased Power Expense
268.7

268.7

—

Operating and Maintenance Expense
340.6

258.6

82.0

Depreciation Expense
99.5

86.9

12.6

Operating Income
137.3

135.4

1.9

Interest Expense
(39.5
)
(34.7
)
(4.8
)
Equity Earnings in ATC
15.6

15.6

—

Other Income
6.0

5.9

0.1

Income (Loss) Before Non-Controlling Interest and Income Taxes
119.4

122.2

(2.8
)
Income Tax Expense (Benefit)
27.1

29.6

(2.5
)
Net Income (Loss)
92.3

92.6

(0.3
)
Less: Non-Controlling Interest in Subsidiaries
0.4

—

0.4

Net Income (Loss) Attributable to ALLETE

$91.9


$92.6

$(0.7)
 
 
 
 
As of September 30, 2014
 
 
 
Total Assets

$4,067.9


$3,519.9


$548.0

Property, Plant and Equipment – Net

$3,121.5


$2,888.5


$233.0

Accumulated Depreciation

$1,316.6


$1,244.7


$71.9

Capital Additions

$467.6


$452.9


$14.7

NOTE 2.  BUSINESS SEGMENTS (Continued)

 
Consolidated

Regulated Operations

Investments and Other

Millions
 
 
 
For the Nine Months Ended September 30, 2013
 
 
 
Operating Revenue

$750.4


$683.6


$66.8

Fuel and Purchased Power Expense
245.7

245.7

—

Operating and Maintenance Expense
311.2

243.6

67.6

Depreciation Expense
86.3

81.8

4.5

Operating Income (Loss)
107.2

112.5

(5.3
)
Interest Expense
(37.8
)
(31.5
)
(6.3
)
Equity Earnings in ATC
15.1

15.1

—

Other Income
7.5

3.4

4.1

Income (Loss) Before Non-Controlling Interest and Income Taxes
92.0

99.5

(7.5
)
Income Tax Expense (Benefit)
20.3

26.5

(6.2
)
Net Income (Loss)
71.7

73.0

(1.3
)
Less: Non-Controlling Interest in Subsidiaries
—

—

—

Net Income (Loss) Attributable to ALLETE

$71.7


$73.0

$(1.3)
 
 
 
 
As of September 30, 2013
 

 

 

Total Assets

$3,463.9


$3,086.3


$377.6

Property, Plant and Equipment – Net

$2,456.1


$2,384.1


$72.0

Accumulated Depreciation

$1,225.3


$1,165.8


$59.5

Capital Additions

$186.4


$177.6


$8.8