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Investment in ATC (Tables)
6 Months Ended
Jun. 30, 2014
Investment in ATC [Abstract]  
ALLETE's Investment in ATC [Table Text Block]
ALLETE’s Investment in ATC
 
Millions
 
Equity Investment Balance as of December 31, 2013

$114.6

Cash Investments
2.3

Equity in ATC Earnings
10.3

Distributed ATC Earnings
(8.4
)
Equity Investment Balance as of June 30, 2014

$118.8




ATC’s summarized financial data for the quarter and six months ended June 30, 2014 and 2013, is as follows:
 
Quarter Ended
 
Six Months Ended
ATC Summarized Financial Data
June 30,
 
June 30,
Income Statement Data
2014
 
2013
 
2014
 
2013
Millions
 
 
 
 
 
 
 
Revenue
$160.0
 
$152.1
 
$323.3
 

$303.9

Operating Expense
74.4
 
69.9
 
153.0
 
139.7

Other Expense
21.9
 
20.9
 
43.5
 
42.4

Net Income
$63.7
 
$61.3
 
$126.8
 

$121.8

ALLETE’s Equity in Net Income

$5.2

 
$5.0
 

$10.3

 

$10.2