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 |
|---|---|---|---|---|---|---|
| Enterprise Gas Processing | Enterprise Products Partners | oil and gas | air pollution violation | 2010 | CO-DPHE | $57,675 |
| Crestone Peak | Civitas Resources Inc. | oil and gas | air pollution violation | 2010 | CO-DPHE | $5,100 |
| Kerr-McGee Oil & Gas | Occidental Petroleum | oil and gas | air pollution violation | 2010 | CO-DPHE | $10,260 |
| Kerr-McGee Oil & Gas | Occidental Petroleum | oil and gas | air pollution violation | 2010 | CO-DPHE | $6,000 |
| PDC Energy | Chevron | oil and gas | air pollution violation | 2010 | CO-DPHE | $6,600 |
| PDC Energy | Chevron | oil and gas | air pollution violation | 2010 | CO-DPHE | $26,400 |
| XTO Energy Inc. | Exxon Mobil | oil and gas | air pollution violation | 2010 | CO-DPHE | $12,000 |
| BONANZA CREEK ENERGY | Civitas Resources Inc. | oil and gas | air pollution violation | 2010 | CO-DPHE | $5,100 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2010 | CO-DPHE | $40,090 |
| Bargath LLC | Williams Companies | oil and gas | air pollution violation | 2010 | CO-DPHE | $96,250 |
| Suncor Energy | Suncor Energy | oil and gas | air pollution violation | 2010 | CO-DPHE | $115,200 |
| Kerr-McGee Oil & Gas | Occidental Petroleum | oil and gas | air pollution violation | 2010 | CO-DPHE | $5,100 |
| XTO Energy Inc. | Exxon Mobil | oil and gas | air pollution violation | 2010 | CO-DPHE | $70,000 |
| Bargath LLC | Williams Companies | oil and gas | air pollution violation | 2009 | CO-DPHE | $15,400 |
| Bargath LLC | Williams Companies | oil and gas | air pollution violation | 2009 | CO-DPHE | $16,800 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2009 | CO-DPHE | $9,000 |
| PDC Energy | Chevron | oil and gas | air pollution violation | 2009 | CO-DPHE | $17,850 |
| PDC Energy | Chevron | oil and gas | air pollution violation | 2009 | CO-DPHE | $11,620 |
| SRC Energy Inc. | Chevron | oil and gas | air pollution violation | 2009 | CO-DPHE | $23,800 |
| Enterprise Gas Processing | Enterprise Products Partners | oil and gas | air pollution violation | 2009 | CO-DPHE | $27,600 |
| Bill Barrett Corp. | Civitas Resources Inc. | oil and gas | air pollution violation | 2009 | CO-DPHE | $19,500 |
| Bargath LLC | Williams Companies | oil and gas | air pollution violation | 2009 | CO-DPHE | $70,900 |
| Noble Energy | Chevron | oil and gas | air pollution violation | 2009 | CO-DPHE | $15,400 |
| Chevron Midcontinent | Chevron | oil and gas | air pollution violation | 2009 | CO-DPHE | $9,800 |
| XTO Energy Inc. | Exxon Mobil | oil and gas | air pollution violation | 2008 | CO-DPHE | $228,400 |
| Bargath LLC | Williams Companies | oil and gas | air pollution violation | 2008 | CO-DPHE | $93,310 |
| Bargath LLC | Williams Companies | oil and gas | air pollution violation | 2008 | CO-DPHE | $11,200 |
| Kerr-McGee Oil & Gas | Occidental Petroleum | oil and gas | air pollution violation | 2008 | CO-DPHE | $6,300 |
| Bargath LLC | Williams Companies | oil and gas | air pollution violation | 2008 | CO-DPHE | $13,600 |
| Noble Energy | Chevron | oil and gas | air pollution violation | 2008 | CO-DPHE | $137,086 |
| Suncor Energy | Suncor Energy | oil and gas | air pollution violation | 2008 | CO-DPHE | $53,368 |
| KERR-MCGEE GATHERING | Occidental Petroleum | oil and gas | air pollution violation | 2008 | CO-DPHE | $25,000 |
| XTO Energy Inc. | Exxon Mobil | oil and gas | air pollution violation | 2008 | CO-DPHE | $57,100 |
| Kerr-McGee Oil & Gas | Occidental Petroleum | oil and gas | air pollution violation | 2007 | CO-DPHE | $5,213 |
| Bargath LLC | Williams Companies | oil and gas | air pollution violation | 2007 | CO-DPHE | $80,000 |
| Bill Barrett Corp. | Civitas Resources Inc. | oil and gas | air pollution violation | 2007 | CO-DPHE | $17,400 |
| Suncor Energy | Suncor Energy | oil and gas | air pollution violation | 2007 | CO-DPHE | $36,600 |
| Suncor | Suncor Energy | oil and gas | air pollution violation | 2006 | CO-DPHE | $18,000 |
| Suncor Energy | Suncor Energy | oil and gas | air pollution violation | 2006 | CO-DPHE | $20,000 |
| Encana | Ovintiv Inc. | oil and gas | air pollution violation | 2006 | CO-DPHE | $15,400 |
| Suncor | Suncor Energy | oil and gas | air pollution violation | 2005 | CO-DPHE | $9,375 |
| KERR-MCGEE GATHERING | Occidental Petroleum | oil and gas | air pollution violation | 2005 | CO-DPHE | $59,530 |
| Citation Oil | Citation Oil & Gas | oil and gas | air pollution violation | 2004 | CO-DPHE | $12,500 |
| Pioneer Natural Resources | Pioneer Natural Resources | oil and gas | air pollution violation | 2004 | CO-DPHE | $5,000 |
| Kerr-McGee | Occidental Petroleum | oil and gas | air pollution violation | 2004 | CO-DPHE | $7,500 |
| Suncor | Suncor Energy | oil and gas | air pollution violation | 2004 | CO-DPHE | $39,500 |
| Encana | Ovintiv Inc. | oil and gas | air pollution violation | 2003 | CO-DPHE | $10,913 |
| KERR-MCGEE GATHERING | Occidental Petroleum | oil and gas | air pollution violation | 2002 | CO-DPHE | $6,720 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2002 | CO-DPHE | $8,560 |
| AKA ENERGY GROUP - GILCREST GAS | Aka Energy | oil and gas | air pollution violation | 2002 | CO-DPHE | $12,000 |
| Citation Oil | Citation Oil & Gas | oil and gas | air pollution violation | 2002 | CO-DPHE | $14,000 |
| AKA ENERGY GROUP - GILCREST GAS | Aka Energy | oil and gas | air pollution violation | 2002 | CO-DPHE | $5,400 |
| Suncor Energy | Suncor Energy | oil and gas | air pollution violation | 2002 | CO-DPHE | $139,800 |
| KERR-MCGEE GATHERING | Occidental Petroleum | oil and gas | air pollution violation | 2001 | CO-DPHE | $84,000 |
| Suncor | Suncor Energy | oil and gas | air pollution violation | 2001 | CO-DPHE | $6,180 |
| Suncor | Suncor Energy | oil and gas | air pollution violation | 2001 | CO-DPHE | $6,180 |
| Citation Oil | Citation Oil & Gas | oil and gas | air pollution violation | 2000 | CO-DPHE | $24,750 |
| AKA ENERGY GROUP - GILCREST GAS | Aka Energy | oil and gas | air pollution violation | 2000 | CO-DPHE | $14,000 |
| Pioneer Natural Resources | Pioneer Natural Resources | oil and gas | air pollution violation | 2000 | CO-DPHE | $41,900 |
| Encana Oil & Gas | Ovintiv Inc. | oil and gas | air pollution violation | 2000 | CO-DPHE | $18,000 |
| Anadarko Petroleum Corporation | Occidental Petroleum | oil and gas | mining environmental violation | 2015 | CO-DRMS | $5,000 |
| Chevron USA Inc. | Chevron | oil and gas | environmental violation | 2020 | CO-OIL | $36,295 |
| Sandridge Exploration & Production LLC | SandRidge Energy | oil and gas | environmental violation | 2020 | CO-OIL | $339,370 |
| Noble Energy Inc | Chevron | oil and gas | environmental violation | 2020 | CO-OIL | $54,400 |
| Chevron USA Inc. | Chevron | oil and gas | environmental violation | 2020 | CO-OIL | $31,500 |
| Crestone Peak Resources Operating LLC | Civitas Resources Inc. | oil and gas | environmental violation | 2020 | CO-OIL | $15,987 |
| Crestone Peak Resources Operating LLC | Civitas Resources Inc. | oil and gas | environmental violation | 2020 | CO-OIL | $11,042 |
| Bargath LLC | Williams Companies | oil and gas | environmental violation | 2020 | CO-OIL | $28,000 |
| EOG Resources Inc. | EOG Resources | oil and gas | environmental violation | 2020 | CO-OIL | $163,695 |
| Sandridge Exploration & Production LLC | SandRidge Energy | oil and gas | environmental violation | 2020 | CO-OIL | $449,650 |
| Crestone Peak Resources Operating LLC | Civitas Resources Inc. | oil and gas | environmental violation | 2020 | CO-OIL | $141,903 |
| Noble Energy Inc. | Chevron | oil and gas | environmental violation | 2020 | CO-OIL | $148,744 |
| Crestone Peak Resources Operating LLC | Civitas Resources Inc. | oil and gas | environmental violation | 2020 | CO-OIL | $17,612 |
| Extraction Oil & Gas Inc. | Civitas Resources Inc. | oil and gas | environmental violation | 2020 | CO-OIL | $6,349 |
| SRC Energy Inc. | Chevron | oil and gas | environmental violation | 2020 | CO-OIL | $6,318 |
| Citation Oil & Gas Corp. | Citation Oil & Gas | oil and gas | environmental violation | 2020 | CO-OIL | $30,000 |
| Noble Energy Inc. | Chevron | oil and gas | environmental violation | 2020 | CO-OIL | $10,000 |
| Kerr-McGee Oil & Gas Onshore LP | Occidental Petroleum | oil and gas | environmental violation | 2020 | CO-OIL | $18,250,000 |
| Noble Energy Inc. | Chevron | oil and gas | environmental violation | 2020 | CO-OIL | $43,337 |
| Extraction Oil & Gas Inc. | Civitas Resources Inc. | oil and gas | environmental violation | 2019 | CO-OIL | $15,000 |
| Extraction Oil & Gas Inc. | Civitas Resources Inc. | oil and gas | environmental violation | 2019 | CO-OIL | $5,000 |
| Extraction Oil & Gas Inc. | Civitas Resources Inc. | oil and gas | environmental violation | 2019 | CO-OIL | $66,800 |
| Burlington Resources Oil and Gas LP | ConocoPhillips | oil and gas | environmental violation | 2019 | CO-OIL | $40,160 |
| Kerr-McGee Oil & Gas Onshore LP | Occidental Petroleum | oil and gas | environmental violation | 2019 | CO-OIL | $7,500 |
| Bonanza Creek Operation Company LLC | Civitas Resources Inc. | oil and gas | environmental violation | 2019 | CO-OIL | $324,640 |
| BP America Operating Co. | BP | oil and gas | environmental violation | 2019 | CO-OIL | $68,000 |
| Crestone Peak Resources Operating LLC | Civitas Resources Inc. | oil and gas | environmental violation | 2019 | CO-OIL | $139,450 |
| Extraction Oil & Gas Inc. | Civitas Resources Inc. | oil and gas | environmental violation | 2019 | CO-OIL | $803,800 |
| PDC Energy Inc. | Chevron | oil and gas | environmental violation | 2018 | CO-OIL | $151,440 |
| Kerr-McGee Oil & Gas Onshore LP | Occidental Petroleum | oil and gas | environmental violation | 2018 | CO-OIL | $15,000 |
| Noble Energy Inc. | Chevron | oil and gas | environmental violation | 2018 | CO-OIL | $1,603,530 |
| Pioneer Natural Resources USA Inc. | Pioneer Natural Resources | oil and gas | environmental violation | 2018 | CO-OIL | $45,435 |
| Crestone Peak Resources Operating LLC | Civitas Resources Inc. | oil and gas | environmental violation | 2018 | CO-OIL | $10,000 |
| Hilcorp Energy Co. | Hilcorp Energy | oil and gas | environmental violation | 2018 | CO-OIL | $72,116 |
| Noble Energy Inc. | Chevron | oil and gas | environmental violation | 2018 | CO-OIL | $94,528 |
| SRC Energy Inc. | Chevron | oil and gas | environmental violation | 2018 | CO-OIL | $30,000 |
| Extraction Oil & Gas Inc. | Civitas Resources Inc. | oil and gas | environmental violation | 2018 | CO-OIL | $10,000 |
| SRC Energy Inc. | Chevron | oil and gas | environmental violation | 2018 | CO-OIL | $5,000 |
| BP America Production Co. | BP | oil and gas | environmental violation | 2017 | CO-OIL | $45,000 |
| Whiting Oil & Gas Corp. | Chord Energy | oil and gas | environmental violation | 2017 | CO-OIL | $173,350 |
| Chevron Pipeline Co. | Chevron | oil and gas | environmental violation | 2017 | CO-OIL | $65,115 |
