2014

Entergy
Louisiana (United States)
17
2014

Dominion Energy
Virginia (United States)
16
2014

DTE Energy
Michigan (United States)
15
2014

Exxon Mobil
Texas (United States)
14
2014

NextEra Energy
Florida (United States)
13
2014

Calpine
Texas (United States)
12
2014

Energy Future Holdings Corporation
Texas (United States)
11
2014

PPL Corp.
Pennsylvania (United States)
10
2014

FirstEnergy
Ohio (United States)
9
2014

Xcel Energy
Minnesota (United States)
8
2014

Dynegy Inc
Texas (United States)
7
2014

Berkshire Hathaway
Nebraska (United States)
5
2014

NRG Energy
New Jersey (United States)
4
2014

Southern Co
Georgia (United States)
3
2014

American Electric
Ohio (United States)
2
2014

Duke Energy
North Carolina (United States)
1