Click on the company or penalty amount for more information on each case. Click on the current parent name to reach the summary page for that parent company.
| Company | Current Parent | Current Parent Industry  | Primary Offense Type | Year | Agency | Penalty Amount |
|---|---|---|---|---|---|---|
| Chevron Pipeline Co. | Chevron | oil and gas | environmental violation | 2017 | CO-OIL | $65,115 |
| Kerr-McGee Oil & Gas Onshore LP | Occidental Petroleum | oil and gas | environmental violation | 2017 | CO-OIL | $158,250 |
| Kerr-McGee Oil & Gas Onshore LP | Occidental Petroleum | oil and gas | environmental violation | 2017 | CO-OIL | $75,000 |
| Noble Energy Inc. | Chevron | oil and gas | environmental violation | 2017 | CO-OIL | $40,096 |
| Chevron USA Inc. | Chevron | oil and gas | environmental violation | 2017 | CO-OIL | $30,000 |
| Bonanza Creek Energy Operating Company LLC | Civitas Resources Inc. | oil and gas | environmental violation | 2017 | CO-OIL | $10,000 |
| Kerr-McGee Oil & Gas Onshore LP | Occidental Petroleum | oil and gas | environmental violation | 2017 | CO-OIL | $39,410 |
| Noble Energy Inc. | Chevron | oil and gas | environmental violation | 2017 | CO-OIL | $46,785 |
| Sandridge Exploration & Production LLC | SandRidge Energy | oil and gas | environmental violation | 2017 | CO-OIL | $27,180 |
| Whiting Oil & Gas Corp. | Chord Energy | oil and gas | environmental violation | 2017 | CO-OIL | $12,500 |
| Encana Oil & Gas (USA) Inc. | Ovintiv Inc. | oil and gas | environmental violation | 2016 | CO-OIL | $65,000 |
| Extraction Oil & Gas LLC | Civitas Resources Inc. | oil and gas | environmental violation | 2016 | CO-OIL | $27,500 |
| Extraction Oil & Gas LLC | Civitas Resources Inc. | oil and gas | environmental violation | 2016 | CO-OIL | $37,000 |
| PDC Energy Inc. | Chevron | oil and gas | environmental violation | 2016 | CO-OIL | $62,325 |
| XTO Energy Inc. | Exxon Mobil | oil and gas | environmental violation | 2016 | CO-OIL | $10,000 |
| Extraction Oil & Gas LLC | Civitas Resources Inc. | oil and gas | environmental violation | 2016 | CO-OIL | $18,650 |
| Extraction Oil & Gas LLC | Civitas Resources Inc. | oil and gas | environmental violation | 2016 | CO-OIL | $30,000 |
| BP America Production Co. | BP | oil and gas | environmental violation | 2016 | CO-OIL | $12,500 |
| DCP Midstream LP | Phillips 66 | oil and gas | environmental violation | 2016 | CO-OIL | $24,375 |
| Anadarko E&P Onshore LLC | Occidental Petroleum | oil and gas | environmental violation | 2015 | CO-OIL | $20,620 |
| Burlington Resources Oil and Gas Company LP | ConocoPhillips | oil and gas | environmental violation | 2015 | CO-OIL | $16,500 |
| Extraction Oil & Gas LLC | Civitas Resources Inc. | oil and gas | environmental violation | 2015 | CO-OIL | $17,080 |
| BP America Production Co. | BP | oil and gas | environmental violation | 2015 | CO-OIL | $20,000 |
| Kerr-McGee Oil & Gas Onshore LP | Occidental Petroleum | oil and gas | environmental violation | 2015 | CO-OIL | $10,000 |
| Bonanza Creek Energy Operating Company LLC | Civitas Resources Inc. | oil and gas | environmental violation | 2015 | CO-OIL | $7,500 |
| Kerr-McGee Oil & Gas Onshore LP | Occidental Petroleum | oil and gas | environmental violation | 2015 | CO-OIL | $6,000 |
| Unit Petroleum Company | Unit Corporation | oil and gas | environmental violation | 2015 | CO-OIL | $8,000 |
| WPX Energy Rocky Mountain LLC | Devon Energy | oil and gas | environmental violation | 2014 | CO-OIL | $30,000 |
| Bonanza Creek Energy Operating Company LLC | Civitas Resources Inc. | oil and gas | environmental violation | 2014 | CO-OIL | $26,000 |
| Noble Energy Inc. | Chevron | oil and gas | environmental violation | 2014 | CO-OIL | $10,000 |
| Bill Barrett Corp. | Civitas Resources Inc. | oil and gas | environmental violation | 2013 | CO-OIL | $12,000 |
| Hilcorp Energy Co. | Hilcorp Energy | oil and gas | environmental violation | 2013 | CO-OIL | $10,000 |
| Kerr-McGee Oil & Gas Onshore LP | Occidental Petroleum | oil and gas | environmental violation | 2013 | CO-OIL | $42,500 |
| PDC Energy Inc. | Chevron | oil and gas | environmental violation | 2013 | CO-OIL | $35,000 |
| Antero Resources Corp. | Antero Resources | oil and gas | environmental violation | 2013 | CO-OIL | $150,000 |
| Noble Energy Inc. | Chevron | oil and gas | environmental violation | 2012 | CO-OIL | $50,000 |
| Citation Oil & Gas Corp. | Citation Oil & Gas | oil and gas | environmental violation | 2011 | CO-OIL | $40,000 |
| Marathon Oil Co. | Marathon Oil | oil and gas | environmental violation | 2011 | CO-OIL | $143,350 |
| OXY USA WTP LP | Occidental Petroleum | oil and gas | environmental violation | 2011 | CO-OIL | $150,000 |
| Pioneer Natural Resources USA Inc. | Pioneer Natural Resources | oil and gas | environmental violation | 2011 | CO-OIL | $10,000 |
| Whiting Oil & Gas Corp. | Chord Energy | oil and gas | environmental violation | 2011 | CO-OIL | $7,000 |
| Noble Energy Production, Inc. | Chevron | oil and gas | environmental violation | 2010 | CO-OIL | $20,000 |
| Pioneer Natural Resources USA Inc. | Pioneer Natural Resources | oil and gas | environmental violation | 2010 | CO-OIL | $5,000 |
| Williams Production RMT Co. | Williams Companies | oil and gas | water pollution violation | 2010 | CO-OIL | $423,300 |
| OXY USA WTP LP | Occidental Petroleum | oil and gas | environmental violation | 2010 | CO-OIL | $257,400 |
| OXY USA WTP LP | Occidental Petroleum | oil and gas | environmental violation | 2010 | CO-OIL | $390,000 |
| Pioneer Natural Resources USA Inc. | Pioneer Natural Resources | oil and gas | environmental violation | 2010 | CO-OIL | $13,600 |
| Pioneer Natural Resources USA Inc. | Pioneer Natural Resources | oil and gas | environmental violation | 2009 | CO-OIL | $14,000 |
| Pioneer Natural Resources USA Inc. | Pioneer Natural Resources | oil and gas | environmental violation | 2008 | CO-OIL | $8,000 |
| Noble Energy Inc. | Chevron | oil and gas | environmental violation | 2008 | CO-OIL | $18,400 |
| Encana Oil & Gas (USA) Inc. | Ovintiv Inc. | oil and gas | environmental violation | 2006 | CO-OIL | $99,400 |
| Encana Oil & Gas (USA) Inc. | Ovintiv Inc. | oil and gas | environmental violation | 2006 | CO-OIL | $77,400 |
| Encana Oil & Gas (USA) Inc. | Ovintiv Inc. | oil and gas | environmental violation | 2004 | CO-OIL | $25,000 |
| Encana Oil & Gas (USA) Inc. | Ovintiv Inc. | oil and gas | environmental violation | 2004 | CO-OIL | $5,000 |
| Encana Oil & Gas (USA) Inc. | Ovintiv Inc. | oil and gas | environmental violation | 2004 | CO-OIL | $10,000 |
| EnCana Energy Resources Inc. | Ovintiv Inc. | oil and gas | environmental violation | 2004 | CO-OIL | $20,000 |
| Encana Oil & Gas (USA) Inc. | Ovintiv Inc. | oil and gas | environmental violation | 2004 | CO-OIL | $10,000 |
| Williams Production RMT Corp. | Williams Companies | oil and gas | environmental violation | 2004 | CO-OIL | $30,000 |
| ChevronTexaco USA Inc. | Chevron | oil and gas | environmental violation | 2002 | CO-OIL | $8,000 |
| Texaco Exploration and Production Inc. | Chevron | oil and gas | environmental violation | 2000 | CO-OIL | $30,000 |
| DCP OPERATING CO - LUCERNE 1 GAS PLANT | Phillips 66 | oil and gas | air pollution violation | 2020 | CO-DPHE | $184,800 |
| BONANZA CREEK ENERGY | Civitas Resources Inc. | oil and gas | air pollution violation | 2020 | CO-DPHE | $12,600 |
| DCP OPERATING CO | Phillips 66 | oil and gas | air pollution violation | 2020 | CO-DPHE | $84,350 |
| KERR-MCGEE GATHERING | Occidental Petroleum | oil and gas | air pollution violation | 2020 | CO-DPHE | $52,150 |
| ENERPLUS RESOURCES | Enerplus | oil and gas | air pollution violation | 2020 | CO-DPHE | $10,500 |
| Andeavor Field Services LLC | Marathon Petroleum | oil and gas | environmental violation | 2021 | CO-OIL | $22,500 |
| Bison Oil & Gas II LLC | Civitas Resources Inc. | oil and gas | environmental violation | 2021 | CO-OIL | $183,150 |
| Noble Energy, Inc. et al. | Chevron | oil and gas | water pollution violation | 2021 | EPA | $1,000,000 |
| Extraction Oil and Gas, Inc. | Civitas Resources Inc. | oil and gas | federal leasing royalty violation | 2021 | USAO | $462,000 |
| Unocal Corporation | Chevron | oil and gas | environmental violation | 2013 | private lawsuit-state | $32,500,000 |
| DCP Operating Co. | Phillips 66 | oil and gas | environmental violation | 2021 | CO-DPHE | $7,000 |
| Suncor Energy | Suncor Energy | oil and gas | environmental violation | 2021 | CO-DPHE | $163,080 |
| Crestone Peak Resources | Civitas Resources Inc. | oil and gas | environmental violation | 2021 | CO-DPHE | $49,000 |
| Whiting Oil & Gas | Chord Energy | oil and gas | environmental violation | 2021 | CO-DPHE | $18,200 |
| Noble Energy | Chevron | oil and gas | environmental violation | 2021 | CO-DPHE | $17,220 |
| Williams Companies | Williams Companies | oil and gas | environmental violation | 2021 | CO-DPHE | $35,000 |
| Bonanza Creek Energy Operating Co. | Civitas Resources Inc. | oil and gas | environmental violation | 2021 | CO-DPHE | $53,550 |
| Extraction Oil & Gas Inc. | Civitas Resources Inc. | oil and gas | environmental violation | 2021 | CO-OIL | $621,681 |
| PDC Energy, Inc. | Chevron | oil and gas | environmental violation | 2021 | CO-OIL | $490,945 |
| PDC ENERGY | Chevron | oil and gas | environmental violation | 2022 | CO-DPHE | $56,175 |
| PDC ENERGY | Chevron | oil and gas | environmental violation | 2022 | CO-DPHE | $29,925 |
| PDC ENERGY | Chevron | oil and gas | environmental violation | 2022 | CO-DPHE | $10,500 |
| TA OPERATING CORP. DBA TRAVEL CENTERS OF AMERICA | BP | oil and gas | environmental violation | 2021 | CO-DPHE | $8,750 |
| KERR-MCGEE OIL & GAS | Occidental Petroleum | oil and gas | environmental violation | 2021 | CO-DPHE | $15,750 |
| NOBLE MIDSTREAM | Chevron | oil and gas | environmental violation | 2021 | CO-DPHE | $17,290 |
| PDC Energy Inc. | Chevron | oil and gas | environmental violation | 2022 | CO-OIL | $30,000 |
| Bonanza Creek Energy Operating Company LLC | Civitas Resources Inc. | oil and gas | environmental violation | 2022 | CO-OIL | $37,960 |
| Noble Energy Inc. | Chevron | oil and gas | environmental violation | 2022 | CO-OIL | $192,920 |
| DCP Midstream LP | Phillips 66 | oil and gas | air pollution violation | 2022 | EPA | $3,250,000 |
| BONANZA CREEK ENERGY OPERATING | Civitas Resources Inc. | oil and gas | environmental violation | 2022 | CO-DPHE | $105,000 |
| BONANZA CREEK ENERGY OPERATING | Civitas Resources Inc. | oil and gas | environmental violation | 2022 | CO-DPHE | $24,500 |
| EXTRACTION OIL & GAS | Civitas Resources Inc. | oil and gas | environmental violation | 2022 | CO-DPHE | $24,500 |
| PDC ENERGY | Chevron | oil and gas | environmental violation | 2022 | CO-DPHE | $29,760 |
| KERR-MCGEE GATHERING | Occidental Petroleum | oil and gas | environmental violation | 2022 | CO-DPHE | $10,500 |
| Bison Oil & Gas II, LLC | Civitas Resources Inc. | oil and gas | environmental violation | 2022 | CO-OIL | $5,000 |
| KERR-MCGEE | Occidental Petroleum | oil and gas | environmental violation | 2022 | CO-DPHE | $4,171,200 |
| DCP OPERATING CO | Phillips 66 | oil and gas | environmental violation | 2022 | CO-DPHE | $1,625,000 |
| DCP OPERATING CO | Phillips 66 | oil and gas | environmental violation | 2022 | CO-DPHE | $9,100 |
| NOBLE ENERGY | Chevron | oil and gas | environmental violation | 2022 | CO-DPHE | $68,800 |
| DCP OPERATING CO | Phillips 66 | oil and gas | environmental violation | 2022 | CO-DPHE | $45,000 |
| DCP OPERATING CO | Phillips 66 | oil and gas | environmental violation | 2022 | CO-DPHE | $77,000 |
