| Consolidated Edison Company of New York, Inc. | Consolidated Edison | environmental violation | 2005 | EPA | $32,550 |
| OHIO EDISON CO, ET. AL. | FirstEnergy | environmental violation | 2005 | EPA | (*)Penalty amounts marked by an asterisk are ones announced by more than one agency. Parent penalty totals are adjusted to avoid double-counting. $8,005,000 |
| BALTIMORE GAS AND ELECTRIC COMPANY | Exelon | environmental violation | 2005 | EPA | $14,450 |
| KENTUCKY UTILITIES COMPANY | PPL Corp. | environmental violation | 2005 | EPA | $1,728,569 |
| LOUISVILLE GAS AND ELECTRIC COMPANY | PPL Corp. | environmental violation | 2005 | EPA | $19,250 |
| SCANA CORPORATION | Dominion Energy | environmental violation | 2005 | EPA | $161,340 |
| ILLINOIS POWER COMPANY | Ameren | environmental violation | 2005 | EPA | $24,000,000 |
| Indiana Michigan Power Company, d.b.a. American Po | American Electric Power | environmental violation | 2005 | EPA | $80,769 |
| Ohio Power Co. d/b/a American Electric Power | American Electric Power | environmental violation | 2005 | EPA | $103,110 |
| Entergy Gulf States, Inc. | Entergy | environmental violation | 2005 | EPA | $7,476 |
| Luminant Mining Company LLC | Vistra Energy | workplace safety or health violation | 2005 | MSHA | $13,300 |
| Mirant Americas Energy Marketing LP | NRG Energy | price-fixing or anti-competitive practices | 2004 | CFTC | $12,500,000 |
| Aquila Merchant Services | Evergy Inc. | price-fixing or anti-competitive practices | 2004 | CFTC | $26,500,000 |
| e prime, Inc. | Xcel Energy | price-fixing or anti-competitive practices | 2004 | CFTC | $16,000,000 |
| Entergy Koch Trading, L.P. | Entergy | data submission deficiencies | 2004 | CFTC | $3,000,000 |
| Exelon Mystic LLC | Constellation Energy Corporation | environmental violation | 2004 | EPA | $6,000,000 |
| Duke Energy | Duke Energy | nuclear safety violation | 2004 | NRC | $60,000 |
| Carolina Power & Light Company | Duke Energy | nuclear safety violation | 2004 | NRC | $88,000 |
| DTE GAS COMPANY | DTE Energy | environmental violation | 2004 | PHMSA | $25,000 |
| SOUTHERN CALIFORNIA EDISON CO | Edison International | environmental violation | 2004 | PHMSA | $30,000 |
| ABB Ltd | ABB Ltd. | Foreign Corrupt Practices Act | 2004 | SEC | $5,900,000 |
| Exelon Nuclear Group/AmerGen | Exelon | wage and hour violation | 2004 | WHD | $21,879 |
| Alliant Energy Corporate Services, Inc. | Alliant Energy | wage and hour violation | 2004 | WHD | $21,387 |
| Xcel Energy Services, Inc. | Xcel Energy | wage and hour violation | 2004 | WHD | $155,689 |
| Exelon Power Mid-Atlantic | Exelon | labor relations violation | 2004 | NLRB | $378,776 |
| Southern California Edison Company | Edison International | labor relations violation | 2004 | NLRB | $104,653 |
| ABB, Inc. | ABB Ltd. | labor relations violation | 2004 | NLRB | $6,626 |
| Public Service Company of Oklahoma | American Electric Power | labor relations violation | 2004 | NLRB | $6,029,281 |
| Northern Indiana Public Service Company (NIPSCO) | NiSource | labor relations violation | 2004 | NLRB | $7,579 |
| Ohio Power Company | American Electric Power | labor relations violation | 2004 | NLRB | $13,953 |
| AmeriGas Propane LP | UGI Corp. | railroad safety violation | 2004 | FRA | $8,000 |
| Duke Energy | Duke Energy | price-fixing or anti-competitive practices | 2004 | MULTI-AG | $207,500,000 |
| Dynegy | Vistra Energy | price-fixing or anti-competitive practices | 2004 | CA-AG | $281,500,000 |
| South Carolina Electric and Gas | Dominion Energy | consumer protection violation | 2004 | SC-AG | $1,400,000 |
| Wisconsin Public Service Corp. | WEC Energy Group | environmental violation | 2004 | WI-AG | $65,000 |
| Progress Energy | Duke Energy | False Claims Act and related | 2004 | CA-SFCA | $43,100,000 |
| Idaho Power Co. | IDACORP | employment discrimination | 2004 | EEOC | $175,000 |
| EXELON GENERATION CO LLC | Exelon | environmental violation | 2004 | PA-ENV | $602,250 |
| PROGRESS ENERGY | Duke Energy | environmental violation | 2004 | FL-DEP | $7,500 |
| INDIANA MICHIGAN POWER CO DBA AMERICAN ELECTRIC POWER | American Electric Power | environmental violation | 2004 | IN-ENV | $20,000 |
| EAST KENTUCKY POWER COOPERATIVE, INC | East Kentucky Power Cooperative | environmental violation | 2004 | KY-ENV | $6,000 |
| FITCHBURG GAS & ELECTRIC | Unitil Corporation | environmental violation | 2004 | MA-ENV | $6,000 |
| Xcel Energy - Key City/Wilmarth | Xcel Energy | environmental violation | 2004 | MN-ENV | $80,000 |
| PSE&G CENTRAL GAS PLANT | Public Service Enterprise | environmental violation | 2004 | NJ-ENV | $12,000 |
| PSEG FOSSILL LLC SEWAREN GENERATING STATION | Public Service Enterprise | environmental violation | 2004 | NJ-ENV | $23,000 |
| Ohio Power Co. | American Electric Power | environmental violation | 2004 | OH-ENV | $90,587 |
| Cinergy Corp. | Duke Energy | environmental violation | 2004 | OH-ENV | $24,828 |
| Narragansett Electric Co. | PPL Corp. | environmental violation | 2004 | RI-ENV | $6,850 |
| SOUTH CAROLINA ELECTRIC & GAS | Dominion Energy | environmental violation | 2004 | SC-ENV | $12,000 |
| AEP Texas North Company | American Electric Power | environmental violation | 2004 | TX-ENV | $6,700 |
| Aqua Texas, Inc. | Essential Utilities Inc. | environmental violation | 2004 | TX-ENV | $6,720 |
| Southern California Edison Co. (SCE) | Edison International | utility service violation | 2004 | CA-PUC | $656,000 |
| Sempra Energy Solutions | Sempra Energy | environmental violation | 2004 | CA-SCAQMD | $6,500 |
| Sempra Energy Solutions | Sempra Energy | environmental violation | 2004 | CA-SCAQMD | $62,000 |
| Southern California Gas Company | Sempra Energy | environmental violation | 2004 | CA-SCAQMD | $25,000 |
| Yankee Gas Services | EverSource Energy | utility safety violation | 2004 | CT-PURA | $75,000 |
| Detroit Edison | DTE Energy | consumer protection violation | 2004 | MI-PSC | $15,300 |
| UGI UTILITIES, INC (Gas Division) | UGI Corp. | consumer protection violation | 2004 | PA-PUC | $750,000 |
| TXU Energy Retail Company LP | Vistra Energy | consumer protection violation | 2004 | TX-PUC | $530,000 |
| TXU Energy Retail Company | Vistra Energy | consumer protection violation | 2004 | TX-PUC | $220,000 |
| TXU Energy Retail Company | Vistra Energy | consumer protection violation | 2004 | TX-PUC | $29,000 |
| SAN DIEGO GAS AND ELECTRIC | Sempra Energy | workplace safety or health violation | 2004 | OSHA | $7,825 |
| FIRST ENERGY GENERATION CORPORATION | FirstEnergy | workplace safety or health violation | 2004 | OSHA | $9,000 |
| AES HUNTINGTON BEACH LLC | AES Corp. | workplace safety or health violation | 2004 | OSHA | $5,560 |
| AMERICAN ELECTRIC POWER | American Electric Power | workplace safety or health violation | 2004 | OSHA | $12,600 |
| EXELON NEW ENGLAND POWER SERVICES, INC. | Exelon | workplace safety or health violation | 2004 | OSHA | $9,500 |
| NORTHEAST GENERATION SERVICES | EverSource Energy | workplace safety or health violation | 2004 | OSHA | $8,806 |
| PEPCO | Exelon | workplace safety or health violation | 2004 | OSHA | $7,000 |
| EXELON NEW ENGLAND POWER SERVICES, INCORPORATED | Exelon | workplace safety or health violation | 2004 | OSHA | $10,000 |
| AMERICAN WATER | American Water Works | workplace safety or health violation | 2004 | OSHA | $12,375 |
| VESTAS AMERICAN WIND TECHNOLOGY INCORPORATED | Vestas | workplace safety or health violation | 2004 | OSHA | $10,125 |
| ALLEGHENY POWER | FirstEnergy | workplace safety or health violation | 2004 | OSHA | $5,250 |
| SOUTHERN CALIFORNIA EDISON | Edison International | workplace safety or health violation | 2004 | OSHA | $22,500 |
| APPALACHIAN POWER COMPANY | American Electric Power | workplace safety or health violation | 2004 | OSHA | $6,700 |
| AMERICAN ELECTRIC POWER | American Electric Power | workplace safety or health violation | 2004 | OSHA | $5,500 |
| PROGRESS ENERGY, INC. | Duke Energy | workplace safety or health violation | 2004 | OSHA | $19,000 |
| COMMONWEALTH EDISON COMPANY | Exelon | workplace safety or health violation | 2004 | OSHA | $6,750 |
| XCEL ENERGY | Xcel Energy | workplace safety or health violation | 2004 | OSHA | $7,440 |
| XCEL ENERGY | Xcel Energy | workplace safety or health violation | 2004 | OSHA | $5,050 |
| CONSOLIDATED EDISON CO. OF NEW YORK, INC. | Consolidated Edison | workplace safety or health violation | 2004 | OSHA | $35,000 |
| PUGET SOUND ENERGY INC | Puget Sound Energy | workplace safety or health violation | 2004 | OSHA | $5,250 |
| NSTAR | EverSource Energy | environmental violation | 2004 | EPA | $84,215 |
| EXELON GENERATION CO LLC | Exelon | environmental violation | 2004 | EPA | $35,750 |
| PROGRESS ENERGY | Duke Energy | environmental violation | 2004 | EPA | $97,185 |
| ALABAMA POWER COMPANY | Southern Company | environmental violation | 2004 | EPA | $5,143 |
| KANSAS CITY POWER AND LIGHT | Evergy Inc. | environmental violation | 2004 | EPA | $407,788 |
| Northwestern Energy | NorthWestern Corp. | environmental violation | 2004 | EPA | $6,800 |
| Dolet Hills Lignite Company LLC | American Electric Power | workplace safety or health violation | 2004 | MSHA | $5,800 |
| Luminant Mining Company LLC | Vistra Energy | workplace safety or health violation | 2004 | MSHA | $6,900 |
| Luminant Mining Co LLC | Vistra Energy | workplace safety or health violation | 2004 | MSHA | $5,000 |
| Reliant Energy Services, Inc. | NRG Energy | price-fixing or anti-competitive practices | 2003 | CFTC | $18,000,000 |
| Duke Energy Trading and Marketing, L.L.C. | Duke Energy | price-fixing or anti-competitive practices | 2003 | CFTC | $28,000,000 |
| Duke Energy | Duke Energy | price-fixing or anti-competitive practices | 2003 | FERC | $2,500,000 |
| Reliant Energy Services, Inc. | NRG Energy | energy market violation | 2003 | FERC | $50,000,000 |
| Reliant Energy | NRG Energy | energy market violation | 2003 | FERC | $13,800,000 |
| Southern Indiana Gas and Electric Company, Inc. | CenterPoint Energy | environmental violation | 2003 | EPA | $33,100,000 |
| Wisconsin Electric Power Company | WEC Energy Group | environmental violation | 2003 | EPA | $623,200,000 |
| Virginia Electric Power Co. | Dominion Energy | environmental violation | 2003 | EPA | $1,219,200,000 |
| Exelon Nuclear | Exelon | nuclear safety violation | 2003 | NRC | $60,000 |
| AGL RESOURCES | Southern Company | environmental violation | 2003 | PHMSA | $10,000 |
| ATLANTA GAS LIGHT CO | Southern Company | environmental violation | 2003 | PHMSA | $10,000 |
