| OXY USA WTP LP | Occidental Petroleum | environmental violation | 2010 | CO-OIL | $257,400 |
| OXY USA WTP LP | Occidental Petroleum | environmental violation | 2010 | CO-OIL | $390,000 |
| Pioneer Natural Resources USA Inc. | Pioneer Natural Resources | environmental violation | 2010 | CO-OIL | $13,600 |
| Pioneer Natural Resources USA Inc. | Pioneer Natural Resources | environmental violation | 2009 | CO-OIL | $14,000 |
| Pioneer Natural Resources USA Inc. | Pioneer Natural Resources | environmental violation | 2008 | CO-OIL | $8,000 |
| Noble Energy Inc. | Chevron | environmental violation | 2008 | CO-OIL | $18,400 |
| Encana Oil & Gas (USA) Inc. | Ovintiv Inc. | environmental violation | 2006 | CO-OIL | $99,400 |
| Encana Oil & Gas (USA) Inc. | Ovintiv Inc. | environmental violation | 2006 | CO-OIL | $77,400 |
| Encana Oil & Gas (USA) Inc. | Ovintiv Inc. | environmental violation | 2004 | CO-OIL | $25,000 |
| Encana Oil & Gas (USA) Inc. | Ovintiv Inc. | environmental violation | 2004 | CO-OIL | $5,000 |
| Encana Oil & Gas (USA) Inc. | Ovintiv Inc. | environmental violation | 2004 | CO-OIL | $10,000 |
| EnCana Energy Resources Inc. | Ovintiv Inc. | environmental violation | 2004 | CO-OIL | $20,000 |
| Encana Oil & Gas (USA) Inc. | Ovintiv Inc. | environmental violation | 2004 | CO-OIL | $10,000 |
| Williams Production RMT Corp. | Williams Companies | environmental violation | 2004 | CO-OIL | $30,000 |
| ChevronTexaco USA Inc. | Chevron | environmental violation | 2002 | CO-OIL | $8,000 |
| Texaco Exploration and Production Inc. | Chevron | environmental violation | 2000 | CO-OIL | $30,000 |
| Andeavor Field Services LLC | Marathon Petroleum | environmental violation | 2021 | CO-OIL | $22,500 |
| Bison Oil & Gas II LLC | Civitas Resources Inc. | environmental violation | 2021 | CO-OIL | $183,150 |
| Extraction Oil & Gas Inc. | Civitas Resources Inc. | environmental violation | 2021 | CO-OIL | $621,681 |
| PDC Energy, Inc. | Chevron | environmental violation | 2021 | CO-OIL | $490,945 |
| PDC Energy Inc. | Chevron | environmental violation | 2022 | CO-OIL | $30,000 |
| Bonanza Creek Energy Operating Company LLC | Civitas Resources Inc. | environmental violation | 2022 | CO-OIL | $37,960 |
| Noble Energy Inc. | Chevron | environmental violation | 2022 | CO-OIL | $192,920 |
| Bison Oil & Gas II, LLC | Civitas Resources Inc. | environmental violation | 2022 | CO-OIL | $5,000 |
| Crestone Peak Resources Operating | Civitas Resources Inc. | environmental violation | 2023 | CO-OIL | $5,000 |
| Kerr McGee Oil & Gas Onshore LP | Occidental Petroleum | environmental violation | 2023 | CO-OIL | $30,000 |
| PDC Energy Inc. | Chevron | environmental violation | 2023 | CO-OIL | $29,668 |
| PDC Energy Inc. | Chevron | environmental violation | 2023 | CO-OIL | $184,267 |
| Hess Retail Services, Inc. | Marathon Petroleum | tax violations | 2015 | CT-AG | $11,655 |
| Valero | Valero Energy | consumer protection violation | 2006 | CT-AG | $20,085 |
| ExxonMobil Oil Corporation | Exxon Mobil | environmental violation | 2010 | CT-ENV | $790,000 |
| TA Operating Corp. | BP | environmental violation | 2004 | CT-ENV | $102,125 |
| TA Operating Corp. | BP | environmental violation | 2003 | CT-ENV | $89,960 |
| ExxonMobil Corporation | Exxon Mobil | environmental violation | 2001 | CT-ENV | $245,000 |
| Amerada Hess Corp. | Hess Corp. | environmental violation | 2001 | CT-ENV | $14,500 |
| TotalEnergies Petrochemicals & Refining USA, Inc. | TotalEnergies SE | environmental violation | 2023 | CT-ENV | $11,500 |
| Motiva Enterprises LLC | Saudi Arabian Oil Company (Saudi Aramco) | workplace safety or health violation | 2003 | DE-AG | $296,000 |
| Motiva Enterprises LLC | Saudi Arabian Oil Company (Saudi Aramco) | environmental violation | 2002 | DE-AG | $60,200 |
| Delaware City Refining Company | PBF Energy | environmental violation | 2020 | DE-ENV | $70,000 |
| Delaware City Refining Company | PBF Energy | environmental violation | 2019 | DE-ENV | $950,000 |
| Delaware City Refining Company | PBF Energy | environmental violation | 2018 | DE-ENV | $125,433 |
| Delaware City Refining Company | PBF Energy | environmental violation | 2017 | DE-ENV | $150,000 |
| Premcor Refining Group, Inc. | Valero Energy | environmental violation | 2010 | DE-ENV | $1,945,000 |
| Premcor Refining Group, Inc. | Valero Energy | environmental violation | 2008 | DE-ENV | $37,500 |
| Premcor Refining Group, Inc. | Valero Energy | environmental violation | 2007 | DE-ENV | $6,225,000 |
| Premcor Refining Group, Inc. | Valero Energy | environmental violation | 2007 | DE-ENV | $19,589 |
| Premcor Refining Group, Inc. | Valero Energy | environmental violation | 2005 | DE-ENV | $384,384 |
| Premcor Refining Group, Inc. | Valero Energy | environmental violation | 2004 | DE-ENV | $200,000 |
| Motiva Enterprises | Saudi Arabian Oil Company (Saudi Aramco) | environmental violation | 2004 | DE-ENV | $15,000 |
| Motiva Enterprises | Saudi Arabian Oil Company (Saudi Aramco) | environmental violation | 2004 | DE-ENV | $100,000 |
| Motiva Enterprises | Saudi Arabian Oil Company (Saudi Aramco) | environmental violation | 2004 | DE-ENV | $24,000 |
| Motiva Enterprises | Saudi Arabian Oil Company (Saudi Aramco) | environmental violation | 2004 | DE-ENV | $200,000 |
| Motiva Enterprises | Saudi Arabian Oil Company (Saudi Aramco) | environmental violation | 2002 | DE-ENV | $50,200 |
| Motiva Enterprises | Saudi Arabian Oil Company (Saudi Aramco) | environmental violation | 2002 | DE-ENV | $15,000 |
| Motiva Enterprises | Saudi Arabian Oil Company (Saudi Aramco) | environmental violation | 2001 | DE-ENV | $150,000 |
| Getty Petroleum Corp. | Lukoil | environmental violation | 2001 | DE-ENV | $20,000 |
| Delaware City Refining Company | PBF Energy | environmental violation | 2022 | DE-ENV | $250,000 |
| Delaware City Refining Company | PBF Energy | environmental violation | 2023 | DE-ENV | $180,000 |
| CITGO | PDVSA (Petroleos de Venezuela S.A.) | environmental violation | 2014 | DOJ | $2,045,000 |
| Cedyco Corporation | Cedyco Corporation | environmental violation | 2012 | DOJ | $557,000 |
| BP Exploration Alaska, Inc. | BP | environmental violation | 2011 | DOJ | $25,000,000 |
| BP Exploration and Production Inc. | BP | environmental violation | 2012 | DOJ | $4,000,000,000 |
| BP | BP | environmental violation | 2015 | DOJ | $20,800,000,000 |
| ExxonMobil Pipeline Co. | Exxon Mobil | environmental violation | 2016 | DOJ | $12,000,000 |
| Syndial S.p.A. | ENI | price-fixing or anti-competitive practices | 2005 | DOJ_ANTITRUST | $9,000,000 |
| GS Caltex Corporation | GS Caltex | price-fixing or anti-competitive practices | 2018 | DOJ_ANTITRUST | $57,500,000 |
| S-Oil Corporation | Saudi Arabian Oil Company (Saudi Aramco) | price-fixing or anti-competitive practices | 2019 | DOJ_ANTITRUST | $43,580,000 |
| GS Caltex Corporation | GS Caltex | price-fixing or anti-competitive practices | 2019 | DOJ_ANTITRUST | $46,669,672 |
| Devon Energy Corporation | Devon Energy | False Claims Act and related | 2012 | DOJ_CIVIL | $3,492,463 |
| Total Fina S.A. | TotalEnergies SE | False Claims Act and related | 2012 | DOJ_CIVIL | $15,000,000 |
| BP Amoco Corp. | BP | False Claims Act and related | 2011 | DOJ_CIVIL | $20,500,000 |
| Anadarko Petroleum Corporation | Occidental Petroleum | False Claims Act and related | 2011 | DOJ_CIVIL | $17,000,000 |
| Shell Oil Company | Shell PLC | False Claims Act and related | 2011 | DOJ_CIVIL | $2,200,000 |
| Occidental Petroleum Corporation | Occidental Petroleum | False Claims Act and related | 2011 | DOJ_CIVIL | $2,050,000 |
| Marathon Oil Company | Marathon Oil | False Claims Act and related | 2010 | DOJ_CIVIL | $4,697,476 |
| Mobil Natural Gas Inc. | Exxon Mobil | False Claims Act and related | 2010 | DOJ_CIVIL | $32,200,000 |
| Chevron | Chevron | False Claims Act and related | 2009 | DOJ_CIVIL | $45,569,584 |
| Shell Oil Company | Shell PLC | False Claims Act and related | 2003 | DOJ_CIVIL | $49,000,000 |
| Dominion Exploration and Production Co. | CNX Resources | False Claims Act and related | 2003 | DOJ_CIVIL | $2,000,000 |
| Union Oil Company of California (Unocal) | Chevron | False Claims Act and related | 2001 | DOJ_CIVIL | $21,500,000 |
| Phillips Petroleum Company | Phillips 66 | False Claims Act and related | 2001 | DOJ_CIVIL | $8,000,000 |
| Marathon Oil Company | Marathon Oil | False Claims Act and related | 2001 | DOJ_CIVIL | $7,700,000 |
| Burlington Resources Inc. | ConocoPhillips | False Claims Act and related | 2001 | DOJ_CIVIL | $8,500,000 |
| Shell Oil Company | Shell PLC | False Claims Act and related | 2001 | DOJ_CIVIL | $110,000,000 |
| Exxon Mobil Corporation | Exxon Mobil | False Claims Act and related | 2001 | DOJ_CIVIL | $7,000,000 |
| Kerr-McGee Corporation | Occidental Petroleum | False Claims Act and related | 2000 | DOJ_CIVIL | $13,000,000 |
| Texaco Inc. | Chevron | False Claims Act and related | 2000 | DOJ_CIVIL | $43,000,000 |
| Union Pacific Resources Company | Occidental Petroleum | False Claims Act and related | 2000 | DOJ_CIVIL | $2,700,000 |
| Devon Energy Production Company | Devon Energy | False Claims Act and related | 2000 | DOJ_CIVIL | $11,900,000 |
| BP Amoco | BP | False Claims Act and related | 2000 | DOJ_CIVIL | $32,000,000 |
| Conoco | ConocoPhillips | False Claims Act and related | 2000 | DOJ_CIVIL | $26,000,000 |
| Chevron Corporation | Chevron | False Claims Act and related | 2000 | DOJ_CIVIL | $95,000,000 |
| Burlington Resources | ConocoPhillips | federal leasing royalty violation | 2007 | DOJ_CIVIL | $97,500,000 |
| Citation Oil & Gas Corp. | Citation Oil & Gas | False Claims Act and related | 2017 | DOJ_CIVIL | $2,250,000 |
| Shell Oil | Shell PLC | federal leasing royalty violation | 2000 | DOJ_CIVIL | $56,000,000 |
| Devon Energy Corporation | Devon Energy | False Claims Act and related | 2021 | DOJ_CIVIL | $61,500,000 |
| XTO Energy Inc. | Exxon Mobil | False Claims Act and related | 2023 | DOJ_CIVIL | $16,000,000 |
| Total, S.A. | TotalEnergies SE | Foreign Corrupt Practices Act | 2013 | DOJ_CRIMINAL | $245,200,000 |
| Parker Drilling Company | Parker Drilling | Foreign Corrupt Practices Act | 2013 | DOJ_CRIMINAL | $11,760,000 |
| Shell Nigeria Exploration and Production Company Ltd. | Shell PLC | Foreign Corrupt Practices Act | 2010 | DOJ_CRIMINAL | $30,000,000 |
| Statoil ASA | Equinor | Foreign Corrupt Practices Act | 2006 | DOJ_CRIMINAL | $10,500,000 |
