| American Electric Power Company, Inc. |
2,202 |
| Duke Energy Corporation |
2,011 |
| Eaton Corporation |
1,705 |
| United Technologies Corporation |
1,624 |
| Exelon Corporation |
1,392 |
| Edison International |
1,365 |
| Sempra Energy |
1,359 |
| Southern Company |
1,352 |
| Schlumberger Limited |
1,329 |
| Entergy Corporation |
1,113 |
| PG&E Corporation |
1,058 |
| Consolidated Edison Company of New York, Inc. |
1,038 |
| Florida Power & Light Company |
973 |
| FirstEnergy Corp. |
947 |
| El Paso Corporation |
932 |
| DTE Energy Company |
932 |
| National Grid USA |
885 |
| Schneider Electric |
875 |
| Constellation Energy Group, Inc. |
871 |
| Dominion Resources, Inc. |
808 |
| PPL Corporation |
802 |
| CenterPoint Energy, Inc. |
768 |
| Progress Energy Inc. |
753 |
| Ontario Power Generation Inc. |
728 |
| The Williams Companies, Inc. |
723 |
| EnCana Corporation |
718 |
| Public Service Enterprise Group Incorporated |
671 |
| PacifiCorp |
666 |
| Devon Energy Corporation |
642 |
| Ameren Corporation |
640 |
| Allegheny Energy, Inc. |
584 |
| Xcel Energy Inc. |
581 |
| Square-D |
558 |
| Alliant Energy Corporation |
550 |
| Air Liquide Electronics |
547 |
| BOC Gases |
505 |
| Reliant Energy |
478 |
| Chesapeake Energy Corporation |
464 |
| Thomas & Betts Corporation |
461 |
| Arizona Public Service Company |
459 |
| NiSource Inc. |
458 |
| SCANA Corporation |
410 |
| Europ Assistance Holdings Limited |
410 |
| BJ Services Company |
407 |
| Portland General Electric Company |
390 |
| BG Group plc |
379 |
| Centrica plc |
379 |
| Sun Express Logistics Pte Ltd |
375 |
| Hydro-Quebec |
363 |
| Northeast Utilities |
361 |
| OGE Energy Corp. |
360 |
| SRP Salt River Project |
357 |
| Murphy Oil Corporation |
341 |
| CHS Inc. |
340 |
| Pepco Holdings, Inc. |
336 |
| Lower Colorado River Authority |
333 |
| NV Energy Inc |
332 |
| Dynegy Inc. |
327 |
| Seminole Electric Cooperative, Inc. |
323 |
| Los Angeles Department of Water and Power |
318 |
| Wisconsin Energy Corporation |
317 |
| TECO Energy, Inc. |
302 |
| PNM Resources, Inc. |
291 |
| MidAmerican Energy Holdings Company |
284 |
| AGL Resources, Inc. |
282 |
| Puget Energy Inc |
279 |
| NRG Energy, Inc. |
277 |
| Nebraska Public Power District |
273 |
| Southwest Gas Corporation |
272 |
| Calpine Corporation |
272 |
| Westar Energy, Inc. |
269 |
| Avista Corporation |
268 |
| Enterprise Products Partners L.P |
268 |
| Southern Union Company |
263 |
| UniSource Energy Corporation |
261 |
| Spectra Energy Partners, L.P. |
261 |
| CPS Energy |
257 |
| Tenaska, Inc. |
257 |
| Sacramento Municipal Utility District |
251 |
| XTO Energy Inc. |
247 |
| Fortis Corporation |
244 |
| Jindal Steels |
239 |
| Manitoba Hydro-Electric |
234 |
| E.ON UK plc |
230 |
| Idaho Power Company |
229 |
| Questar Corporation |
225 |
| Baltimore Gas and Electric Company |
223 |
| M-I SWACO |
222 |
| British Columbia Hydro and Power Authority |
219 |
| Direct Energy Marketing Limited |
218 |
| Omaha Public Power District |
218 |
| SaskPower |
217 |
| Enron Creditors Recovery Corporation |
212 |
| Hydro One Inc. |
211 |
| TNP Enterprises, Inc. |
208 |
| Minnesota Power |
205 |
| Great Plains Energy Incorporated |
203 |
| Integrys Energy Group, Inc. |
201 |
| EQT Corporation |
201 |
| Hawaiian Electric Industries, Inc. |
196 |
| Caterpillar Solar Turbines |
193 |
| TransCanada PipeLines Limited |
193 |
| Pride International, Inc. |
191 |
| TransAlta Corporation |
187 |
| Scottish & Southern Energy P.L.C. |
186 |
| Basin Electric Power Cooperative |
186 |
| Austin Energy |
184 |
| Vectren Corporation |
182 |
| Mirant Corporation |
182 |
| EPCOR Utilities Inc. |
179 |
| Nicor Inc. |
178 |
| British Energy |
172 |
| Union Gas Limited |
162 |
| Cleco Corporation |
160 |
| United Utilities plc |
160 |
| ICAP Energy LLC |
158 |
| Midwest Independent Transmission System Operator, Inc. |
157 |
| NB Power |
157 |
| PJM Interconnection, L.L.C. |
156 |
| Electric Reliability Council of Texas, Inc. |
154 |
| Quanta Services, Inc. |
154 |
| Southern California Gas Company |
153 |
| Energy East Corporation |
151 |
| Duquesne Light Holdings, Inc. |
151 |
| Otter Tail Power Company |
148 |
| Stuart C. Irby Co. |
148 |
| City Water, Light and Power |
146 |
| Pinnacle West Capital Corporation |
145 |
| Colorado Springs Utilities |
144 |
| Tri-State Generation and Transmission Association, Inc. |
142 |
| Sargent & Lundy LLC |
142 |
| Suburban Propane |
139 |
| Jacksonville Electric Authority (JEA) |
132 |
| Technip Offshore Canada Ltd. |
131 |
| Conectiv Energy |
131 |
| Great River Energy |
129 |
| NorthWestern Corporation |
129 |
| The United Illuminating Company |
126 |
| Northern Natural Gas Company |
124 |
| Orlando Utilities Commission |
124 |
| Piedmont Natural Gas Company, Inc. |
123 |
| MGE Energy, Inc. |
118 |
| CH Energy Group, Inc. |
117 |
| Peoples Energy Corporation |
117 |
| Northwest Natural Gas Company |
115 |
| NSTAR |
114 |
| Washington Gas |
114 |
| MDU Resources Group, Inc. |
113 |
| Blue Bird Corporation |
110 |
| Gainesville Regional Utilities Inc. |
109 |
| City Public Service |
108 |
| Dayton Power & Light aka DPL,INC |
98 |
| Black Hills Corp. |
97 |
| Rochester Gas and Electric Corporation |
96 |
| Illinois Power Company |
95 |
| East Kentucky Power Cooperative |
95 |
| The Laclede Group, Inc. |
94 |
| Citizens Energy Group |
92 |
| Durham (ON), Regional Municipality |
92 |
| SUEZ Energy North America, Inc. |
89 |
| Chelan County Public Utility District |
87 |
| El Paso Electric Company |
87 |
| RWE npower plc |
86 |
| UGI Utilities |
84 |
| Forest Electric Corp. |
83 |
| Energy Northwest |
82 |
| FuelCell Energy |
82 |
| New York Independent System Operator, Inc. |
82 |
| New York State Electric |
82 |
| Central Maine Power Company |
81 |
| COOPERATIVE, INC |
81 |
| Wolf Creek Nuclear Operating Corporation |
80 |
| Philadelphia Gas Works |
80 |
| Eugene Water |
79 |
| Linde North America Inc. |
79 |
| Targa Resources Inc. |
75 |
| Generac Power Systems Inc |
74 |
| UGI Corporation |
74 |
| Lincoln Electric System |
72 |
| North Carolina Electric Membership Corporation |
72 |
| Memphis Light, Gas and Water Division |
72 |
| GA Elec Membership Cooperative |
72 |
| Georgia System Operations Corporation |
71 |
| Snohomish County PUD |
71 |
| South Jersey Industries, Inc. |
71 |
| MarkWest Energy Partners, L.P. |
71 |
| Coleman Cable, Inc. |
71 |
| Hoosier Energy Rural Electric Cooperative, Inc. |
69 |
| Dairyland Power Cooperative |
68 |
| Integrys Energy Services, Inc. |
67 |
| Clay Electric Cooperative, Inc. |
66 |
| Empire District Electric Company |
65 |
| Chesapeake Utilities Corporation |
65 |
| Pepco Energy Services |
65 |
| Elster Group |
63 |
| South Carolina Public Service Authority (Santee Cooper) |
62 |
| Greenmountain Power |
62 |
| Nedco |
62 |
| WPPI Energy |
61 |
| Celerity, Inc. |
61 |
