| Direct Energy Services, LLC | NRG Energy | price-fixing or anti-competitive practices | 2014 | FERC | $51,935 |
| Southern California Edison Company | Edison International | price-fixing or anti-competitive practices | 2014 | FERC | $650,000 |
| Berkshire Power Company LLC and Power Plant Management Services LLC | Tenaska | price-fixing or anti-competitive practices | 2016 | FERC | $3,042,563 |
| 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 |
| Mirant Corporation | NRG Energy | price-fixing or anti-competitive practices | 2005 | CA-AG | $749,700,000 |
| Powerex | BC Hydro | price-fixing or anti-competitive practices | 2013 | CA-AG | $750,000,000 |
| Reliant Energy, Inc. | NRG Energy | price-fixing or anti-competitive practices | 2005 | MULTI-AG | $460,000,000 |
| Sempra Energy Corporation | Sempra Energy | price-fixing or anti-competitive practices | 2006 | NV-AG | $30,000,000 |
| Reliant Energy Services Inc. | NRG Energy | price-fixing or anti-competitive practices | 2007 | USAO | $22,200,000 |
| American Electric Power Company Inc. | American Electric Power | price-fixing or anti-competitive practices | 2017 | private lawsuit-federal | $9,400,000 |
| American Electric Power Company Inc. | American Electric Power | price-fixing or anti-competitive practices | 2009 | private lawsuit-federal | $1,750,000 |
| AmeriGas Propoane LP | UGI Corp. | price-fixing or anti-competitive practices | 2020 | private lawsuit-federal | $6,312,500 |
| Aquila Merchant Services Inc. | Evergy Inc. | price-fixing or anti-competitive practices | 2007 | private lawsuit-federal | $1,013,846 |
| CenterPoint Energy Services, Inc. | CenterPoint Energy | price-fixing or anti-competitive practices | 2019 | private lawsuit-federal | $14,750,000 |
| CMS Energy Resource Management | CMS Energy | price-fixing or anti-competitive practices | 2020 | private lawsuit-federal | $15,000,000 |
| CMS Energy Resources Management | CMS Energy | price-fixing or anti-competitive practices | 2007 | private lawsuit-federal | $700,000 |
| CMS Energy Resources Management | CMS Energy | price-fixing or anti-competitive practices | 2017 | private lawsuit-federal | $5,125,000 |
| Duke Energy | Duke Energy | price-fixing or anti-competitive practices | 2016 | private lawsuit-federal | $80,875,000 |
| Duke Energy Trading and Marketing L.L.C. | Duke Energy | price-fixing or anti-competitive practices | 2017 | private lawsuit-federal | $9,400,000 |
| Duke Energy Trading and Marketing L.L.C. | Duke Energy | price-fixing or anti-competitive practices | 2009 | private lawsuit-federal | $3,466,667 |
| Dynegy Inc. | Vistra Energy | price-fixing or anti-competitive practices | 2007 | private lawsuit-federal | $2,400,000 |
| Dynegy Inc. | Vistra Energy | price-fixing or anti-competitive practices | 2019 | private lawsuit-federal | $4,500,000 |
| e Prime Inc. | Xcel Energy | price-fixing or anti-competitive practices | 2009 | private lawsuit-federal | $500,000 |
| e Prime Inc. | Xcel Energy | price-fixing or anti-competitive practices | 2019 | private lawsuit-federal | $2,750,000 |
| Reliant Energy Services Inc. | NRG Energy | price-fixing or anti-competitive practices | 2009 | private lawsuit-federal | $3,466,666 |
| Sempra Energy Corporation | Sempra Energy | price-fixing or anti-competitive practices | 2009 | private lawsuit-federal | $2,000,000 |
| Xcel Energy Inc. | Xcel Energy | price-fixing or anti-competitive practices | 2021 | private lawsuit-federal | $2,500,000 |
| Florida Power and Light Company (Turkey Point Nuclear Plant Unit 3) | NextEra Energy | nuclear safety violation | 2010 | NRC | $70,000 |
| Entergy Operations, Inc. (River Bend Station) | Entergy | nuclear safety violation | 2012 | NRC | $140,000 |
| Florida Power and Light (Turkey Point Nuclear Plant, Units 3 & 4) | NextEra Energy | nuclear safety violation | 2012 | NRC | $140,000 |
| Dominion Energy Kewaunee, Inc. | Dominion Energy | nuclear safety violation | 2013 | NRC | $70,000 |
| Entergy Nuclear Operations, Inc. | Entergy | nuclear safety violation | 2014 | NRC | $70,000 |
| Dominion Energy Kewaunee, Inc | Dominion Energy | nuclear safety violation | 2015 | NRC | $17,500 |
| Entergy Nuclear Operations, Inc. | Entergy | nuclear safety violation | 2015 | NRC | $70,000 |
| FirstEnergy Nuclear Operating Company | FirstEnergy | nuclear safety violation | 2006 | NRC | $28,000,000 |
| Exelon Generation Company, LLC | Exelon | nuclear safety violation | 2009 | NRC | $65,000 |
| Entergy Nuclear Operations, Inc. | Entergy | nuclear safety violation | 2008 | NRC | $650,000 |
| Exelon Nuclear | Exelon | nuclear safety violation | 2007 | NRC | $65,000 |
| Entergy Nuclear Operations, Inc. | Entergy | nuclear safety violation | 2007 | NRC | $130,000 |
| Pacific Gas and Electric Company | PG&E Corp. | nuclear safety violation | 2005 | NRC | $96,000 |
| Indiana Michigan Power Company | American Electric Power | nuclear safety violation | 2005 | NRC | $60,000 |
| Entergy Nuclear Operations, Inc. | Entergy | nuclear safety violation | 2005 | NRC | $60,000 |
| Exelon Nuclear | Exelon | nuclear safety violation | 2005 | NRC | $10,000 |
| FirstEnergy Nuclear Operating Company | FirstEnergy | nuclear safety violation | 2005 | NRC | $5,450,000 |
| Arizona Public Service Company | Pinnacle West Capital | nuclear safety violation | 2005 | NRC | $55,000 |
| Duke Energy | Duke Energy | nuclear safety violation | 2004 | NRC | $60,000 |
| Carolina Power & Light Company | Duke Energy | nuclear safety violation | 2004 | NRC | $88,000 |
| Exelon Nuclear | Exelon | nuclear safety violation | 2003 | NRC | $60,000 |
| Framatome ANP Richland, Inc. | EDF-Electricite de France | nuclear safety violation | 2002 | NRC | $15,000 |
| Dominion Nuclear Connecticut, Inc. | Dominion Energy | nuclear safety violation | 2002 | NRC | $88,000 |
| Union Electric Company | Ameren | nuclear safety violation | 2001 | NRC | $55,000 |
| FirstEnergy Nuclear Operating Company | FirstEnergy | nuclear safety violation | 2000 | NRC | $110,000 |
| Commonwealth Edison Company | Exelon | nuclear safety violation | 2000 | NRC | $110,000 |
| Consolidated Edison Company of New York | Consolidated Edison | nuclear safety violation | 2000 | NRC | $88,000 |
| Southern Nuclear Operating Company, Inc. | Southern Company | nuclear safety violation | 2018 | NRC | $145,000 |
| Southern California Edison Company | Edison International | nuclear safety violation | 2019 | NRC | $116,000 |
| Entergy | Entergy | nuclear safety violation | 2012 | NY-ENV | $1,200,000 |
| Florida Power & Light Company | NextEra Energy | nuclear safety violation | 2021 | NRC | $150,000 |
| Entergy Operations, Inc. | Entergy | nuclear safety violation | 2021 | NRC | $150,000 |
| Amerigas Propane LP | UGI Corp. | motor vehicle safety violation | 2013 | FMCSA | $20,520 |
| Green Mountain Power Corporation | Energir | motor vehicle safety violation | 2014 | FMCSA | $8,140 |
| Amerigas Propane, LP | UGI Corp. | motor vehicle safety violation | 2010 | FMCSA | $12,400 |
| Avista Corporation | Avista | motor vehicle safety violation | 2012 | FMCSA | $7,272 |
| Amerigas Propane LP | UGI Corp. | motor vehicle safety violation | 2010 | FMCSA | $10,000 |
| ARTESIAN WATER COMPANY, INC. | Artesian Resources | motor vehicle safety violation | 2009 | FMCSA | $19,490 |
| ABB INC | ABB Ltd. | motor vehicle safety violation | 2005 | FMCSA | $6,680 |
| AMERIGAS EAGLE PROPANE LP | UGI Corp. | motor vehicle safety violation | 2005 | FMCSA | $8,550 |
| Virginia Electric & Power Co. | Dominion Energy | motor vehicle safety violation | 2016 | FMCSA | $5,100 |
| Artesian Water Co Inc | Artesian Resources | motor vehicle safety violation | 2021 | FMCSA | $13,560 |
| West Virginia American Water Company | American Water Works | motor vehicle safety violation | 2021 | FMCSA | $7,540 |
| Miller Pipeline LLC | CenterPoint Energy | motor vehicle safety violation | 2023 | FMCSA | $5,900 |
| Plug Power Inc | Plug Power Inc. | motor vehicle safety violation | 2023 | FMCSA | $6,190 |
| SOUTHERN CALIFORNIA EDISON | Edison International | labor relations violation | 2017 | NLRB | $40,000 |
| AmeriGas Propane, Inc. | UGI Corp. | labor relations violation | 2016 | NLRB | $13,222 |
| Rochester Gas & Electric Corporation | Iberdrola | labor relations violation | 2016 | NLRB | $114,083 |
| First Solar Inc. | First Solar | labor relations violation | 2015 | NLRB | $15,930 |
| Direct Energy Business, LLC | NRG Energy | labor relations violation | 2015 | NLRB | $13,609 |
| Dominion Energy Management, Inc. | Dominion Energy | labor relations violation | 2012 | NLRB | $32,000 |
| Southern Nuclear Operating Company, Inc. | Southern Company | labor relations violation | 2011 | NLRB | $105,370 |
| Consolidated Edison of New York, Inc. | Consolidated Edison | labor relations violation | 2011 | NLRB | $5,500 |
| AmeriGas Propane Inc. | UGI Corp. | labor relations violation | 2011 | NLRB | $28,579 |
| Columbia Gas of Pennsylvania, Inc. | NiSource | labor relations violation | 2010 | NLRB | $27,210 |
| Midwest Generation, EME, LLC | NRG Energy | labor relations violation | 2010 | NLRB | $16,184,587 |
| American Water | American Water Works | labor relations violation | 2010 | NLRB | $6,612 |
| Louisville Gas and Electric Company | PPL Corp. | labor relations violation | 2010 | NLRB | $11,554 |
| INDIANA GAS COMPANY, INC D/B/A VECTREN ENERGY DELIVERY OF INDIANA, INC. | CenterPoint Energy | labor relations violation | 2010 | NLRB | $14,000 |
| Dresser-Rand Company | Siemens Energy | labor relations violation | 2010 | NLRB | $11,000 |
| CenterPoint Energy, Inc. | CenterPoint Energy | labor relations violation | 2010 | NLRB | $12,000 |
| CenterPoint Energy | CenterPoint Energy | labor relations violation | 2009 | NLRB | $6,150 |
| National Grid | National Grid | labor relations violation | 2009 | NLRB | $220,000 |
| Aquila, Inc. | Evergy Inc. | labor relations violation | 2009 | NLRB | $20,000 |
| NSTAR Gas & Electric Company | EverSource Energy | labor relations violation | 2009 | NLRB | $1,500,000 |
| American Electric Power d/b/a Public Service Co. of Oklahoma | American Electric Power | labor relations violation | 2008 | NLRB | $19,000 |
| FirstEnergy Generation Corp. | FirstEnergy | labor relations violation | 2008 | NLRB | $12,160 |
| Bay State Gas Company | EverSource Energy | labor relations violation | 2008 | NLRB | $12,000 |
| Illinois-American Water Company | American Water Works | labor relations violation | 2008 | NLRB | $41,500 |
| Aqua Pennsylvania Corporation - Aqua America | Essential Utilities Inc. | labor relations violation | 2008 | NLRB | $20,000 |
| NIPSCO | NiSource | labor relations violation | 2008 | NLRB | $75,000 |
| Aquila, Inc. | Evergy Inc. | labor relations violation | 2008 | NLRB | $10,532 |
| Central Maine Power Company | Iberdrola | labor relations violation | 2007 | NLRB | $149,865 |
