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Operating Revenue
 9 Months Ended
Sep. 30, 2012
Regulated and Unregulated Operating Revenue [Abstract]  
Operating Revenue
Operating Revenue
The Companies’ operating revenue consists of the following:
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2012
 
2011
 
2012
 
2011
(millions)
 
 
 
 
 
 
 
Dominion
 
 
 
 
 
 
 
Electric sales:
 
 
 
 
 
 
 
Regulated
$
2,046

 
$
2,136

 
$
5,495

 
$
5,594

Nonregulated
739

 
857

 
2,122

 
2,465

Gas sales:
 
 
 
 
 
 
 
Regulated
34

 
25

 
166

 
208

Nonregulated
177

 
281

 
740

 
1,220

Gas transportation and storage
297

 
291

 
1,007

 
1,151

Other
118

 
155

 
396

 
378

Total operating revenue
$
3,411

 
$
3,745

 
$
9,926

 
$
11,016

Virginia Power
 
 
 
 
 
 
 
Regulated electric sales
$
2,046

 
$
2,136

 
$
5,495

 
$
5,594

Other
40

 
41

 
101

 
97

Total operating revenue
$
2,086

 
$
2,177

 
$
5,596

 
$
5,691