Energy


Industry Rank

Company

Fortune 1000 Rank

1

Constellation Energy

117

2

Oneok

192

3

American Electric Power

196

4

Williams

208

5

Reliant Energy

237

6

Integrys Energy Group

254

7

Energy Future Holdings

317

8

Calpine

318

9

Global Partners

364

10

NRG Energy

403

11

UGI

437

12

Dynegy

612

13

New Jersey Resources

671

14

Mirant

708

15

Questar

723

16

Adams Resources & Energy

744

17

Ferrellgas Partners

900

18

USEC

912