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 |
|---|---|---|---|---|---|---|
| HALLIBURTON ENERGY SERVICES, INC. | Halliburton | oilfield services and supplies | workplace safety or health violation | 2014 | OSHA | $7,000 |
| HALLIBURTON ENERGY SERVICES, INC. | Halliburton | oilfield services and supplies | workplace safety or health violation | 2015 | OSHA | $7,000 |
| HALLIBURTON ENERGY SERVICES | Halliburton | oilfield services and supplies | workplace safety or health violation | 2016 | OSHA | $6,247 |
| ENSIGN UNITED STATES DRILLING, INC. | Ensign Energy Services | oilfield services and supplies | workplace safety or health violation | 2019 | OSHA | $5,677 |
| RANGER ENERGY SERVICES, LLC | Ranger Energy Services | oilfield services and supplies | workplace safety or health violation | 2022 | OSHA | $319,058 |
| ENSIGN UNITED STATES DRILLING INC. | Ensign Energy Services | oilfield services and supplies | workplace safety or health violation | 2022 | OSHA | $12,500 |
| ENSIGN UNITED STATES DRILLING INC. | Ensign Energy Services | oilfield services and supplies | workplace safety or health violation | 2022 | OSHA | $10,000 |
| ENSIGN UNITED STATES DRILLING INC. | Ensign Energy Services | oilfield services and supplies | workplace safety or health violation | 2022 | OSHA | $10,156 |
| ENSIGN UNITED STATES DRILLING INC. | Ensign Energy Services | oilfield services and supplies | workplace safety or health violation | 2023 | OSHA | $8,929 |
| ENSIGN UNITED STATES DRILLING INC. | Ensign Energy Services | oilfield services and supplies | workplace safety or health violation | 2023 | OSHA | $5,692 |
| ConocoPhillips | Phillips 66 | oil and gas | air pollution violation | 2011 | EPA | $198,000 |
| Williams Companies | Williams Companies | oil and gas | environmental violation | 2011 | EPA | $50,000 |
| Noble Energy Inc. | Chevron | oil and gas | air pollution violation | 2015 | EPA | $73,450,000 |
| Suncor Energy | Suncor Energy | oil and gas | air pollution violation | 2014 | EPA | $230,400 |
| ConocoPhillips Company | Phillips 66 | oil and gas | air pollution violation | 2010 | EPA | $175,000 |
| Chevron Mining, Inc. f/k/a The Pittsburg & Midway Coal Mining Company | Chevron | oil and gas | labor relations violation | 2012 | NLRB | $1,316,790 |
| Phillips Pipe Line Company | Phillips 66 | oil and gas | labor relations violation | 2001 | NLRB | $65,500 |
| ARCO | BP | oil and gas | environmental violation | 2001 | CO-AG | $250,000 |
| Shell Oil Co. | Shell PLC | oil and gas | environmental violation | 2008 | CO-AG | $20,000,000 |
| BONANZA CREEK ENERGY | Civitas Resources Inc. | oil and gas | air pollution violation | 2020 | CO-DPHE | $22,750 |
| Crestone Peak | Civitas Resources Inc. | oil and gas | air pollution violation | 2020 | CO-DPHE | $8,750 |
| Kerr-McGee Oil & Gas | Occidental Petroleum | oil and gas | air pollution violation | 2020 | CO-DPHE | $47,425 |
| Whiting Oil & Gas | Chord Energy | oil and gas | air pollution violation | 2020 | CO-DPHE | $8,050 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2020 | CO-DPHE | $10,500 |
| Sandridge E&P | SandRidge Energy | oil and gas | air pollution violation | 2020 | CO-DPHE | $43,750 |
| Whiting Oil & Gas | Chord Energy | oil and gas | air pollution violation | 2020 | CO-DPHE | $9,100 |
| Enterprise Gas Processing | Enterprise Products Partners | oil and gas | air pollution violation | 2020 | CO-DPHE | $22,750 |
| Extraction Oil & Gas | Civitas Resources Inc. | oil and gas | air pollution violation | 2020 | CO-DPHE | $7,000 |
| SUMMIT MIDSTREAM NIOBR | Summit Midstream Partners | oil and gas | air pollution violation | 2020 | CO-DPHE | $47,425 |
| PDC Energy | Chevron | oil and gas | air pollution violation | 2020 | CO-DPHE | $14,700 |
| Citation Oil | Citation Oil & Gas | oil and gas | air pollution violation | 2020 | CO-DPHE | $21,350 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2020 | CO-DPHE | $12,000 |
| Extraction Oil & Gas | Civitas Resources Inc. | oil and gas | air pollution violation | 2020 | CO-DPHE | $5,250 |
| Suncor Energy | Suncor Energy | oil and gas | air pollution violation | 2020 | CO-DPHE | $1,215,810 |
| Sandridge E&P | SandRidge Energy | oil and gas | air pollution violation | 2020 | CO-DPHE | $41,300 |
| Noble Energy | Chevron | oil and gas | air pollution violation | 2020 | CO-DPHE | $32,480 |
| Anadarko | Occidental Petroleum | oil and gas | air pollution violation | 2020 | CO-DPHE | $23,800 |
| AKA Energy Group | Aka Energy | oil and gas | air pollution violation | 2020 | CO-DPHE | $37,100 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2020 | CO-DPHE | $87,150 |
| Kerr-McGee Oil & Gas | Occidental Petroleum | oil and gas | air pollution violation | 2020 | CO-DPHE | $50,750 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2019 | CO-DPHE | $37,170 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2019 | CO-DPHE | $66,500 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2019 | CO-DPHE | $12,800 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2019 | CO-DPHE | $14,000 |
| Whiting Oil & Gas | Chord Energy | oil and gas | air pollution violation | 2019 | CO-DPHE | $74,550 |
| BONANZA CREEK ENERGY | Civitas Resources Inc. | oil and gas | air pollution violation | 2019 | CO-DPHE | $36,750 |
| Crestone Peak | Civitas Resources Inc. | oil and gas | air pollution violation | 2019 | CO-DPHE | $5,250 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2019 | CO-DPHE | $21,000 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2019 | CO-DPHE | $45,850 |
| PDC Energy | Chevron | oil and gas | air pollution violation | 2019 | CO-DPHE | $12,950 |
| Suncor Energy | Suncor Energy | oil and gas | air pollution violation | 2019 | CO-DPHE | $41,820 |
| Kerr-McGee Oil & Gas | Occidental Petroleum | oil and gas | air pollution violation | 2019 | CO-DPHE | $104,280 |
| Extraction Oil & Gas | Civitas Resources Inc. | oil and gas | air pollution violation | 2019 | CO-DPHE | $8,800 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2019 | CO-DPHE | $76,650 |
| Noble Energy | Chevron | oil and gas | air pollution violation | 2019 | CO-DPHE | $29,050 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2019 | CO-DPHE | $29,050 |
| AKA ENERGY GROUP | Aka Energy | oil and gas | air pollution violation | 2019 | CO-DPHE | $57,150 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2019 | CO-DPHE | $12,000 |
| Noble Energy | Chevron | oil and gas | air pollution violation | 2018 | CO-DPHE | $6,440 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2018 | CO-DPHE | $39,900 |
| Whiting Oil & Gas | Chord Energy | oil and gas | air pollution violation | 2018 | CO-DPHE | $39,900 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2018 | CO-DPHE | $46,200 |
| BONANZA CREEK ENERGY | Civitas Resources Inc. | oil and gas | air pollution violation | 2018 | CO-DPHE | $12,600 |
| Noble Energy | Chevron | oil and gas | air pollution violation | 2018 | CO-DPHE | $6,540 |
| Whiting Oil & Gas | Chord Energy | oil and gas | air pollution violation | 2018 | CO-DPHE | $312,568 |
| Kerr-McGee Oil & Gas | Occidental Petroleum | oil and gas | air pollution violation | 2018 | CO-DPHE | $25,500 |
| Extraction Oil & Gas | Civitas Resources Inc. | oil and gas | air pollution violation | 2018 | CO-DPHE | $51,450 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2018 | CO-DPHE | $12,600 |
| Suncor Energy | Suncor Energy | oil and gas | air pollution violation | 2018 | CO-DPHE | $40,770 |
| Anadarko | Occidental Petroleum | oil and gas | air pollution violation | 2018 | CO-DPHE | $6,000 |
| Noble Energy | Chevron | oil and gas | air pollution violation | 2018 | CO-DPHE | $25,802 |
| Extraction Oil & Gas | Civitas Resources Inc. | oil and gas | air pollution violation | 2018 | CO-DPHE | $138,600 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2018 | CO-DPHE | $34,650 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2018 | CO-DPHE | $70,000 |
| Noble Energy | Chevron | oil and gas | air pollution violation | 2018 | CO-DPHE | $5,400 |
| Kerr-McGee Oil & Gas | Occidental Petroleum | oil and gas | air pollution violation | 2017 | CO-DPHE | $12,600 |
| Extraction Oil & Gas | Civitas Resources Inc. | oil and gas | air pollution violation | 2017 | CO-DPHE | $5,100 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2017 | CO-DPHE | $51,450 |
| BONANZA CREEK ENERGY | Civitas Resources Inc. | oil and gas | air pollution violation | 2017 | CO-DPHE | $180,000 |
| Noble Energy | Chevron | oil and gas | air pollution violation | 2017 | CO-DPHE | $70,350 |
| Kerr-McGee Oil & Gas | Occidental Petroleum | oil and gas | air pollution violation | 2017 | CO-DPHE | $10,800 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2017 | CO-DPHE | $14,000 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2017 | CO-DPHE | $7,000 |
| KERR-MCGEE GATHERING | Occidental Petroleum | oil and gas | air pollution violation | 2017 | CO-DPHE | $62,000 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2017 | CO-DPHE | $28,000 |
| Crestone Peak | Civitas Resources Inc. | oil and gas | air pollution violation | 2017 | CO-DPHE | $31,675 |
| Extraction Oil & Gas | Civitas Resources Inc. | oil and gas | air pollution violation | 2017 | CO-DPHE | $10,500 |
| Noble Energy | Chevron | oil and gas | air pollution violation | 2017 | CO-DPHE | $24,710 |
| Noble Midstream | Chevron | oil and gas | air pollution violation | 2017 | CO-DPHE | $10,500 |
| Encana | Ovintiv Inc. | oil and gas | air pollution violation | 2017 | CO-DPHE | $19,600 |
| Suncor Energy | Suncor Energy | oil and gas | air pollution violation | 2017 | CO-DPHE | $31,290 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2017 | CO-DPHE | $219,100 |
| BONANZA CREEK ENERGY | Civitas Resources Inc. | oil and gas | air pollution violation | 2017 | CO-DPHE | $7,700 |
| Noble Midstream | Chevron | oil and gas | air pollution violation | 2016 | CO-DPHE | $67,925 |
| Crestone Peak | Civitas Resources Inc. | oil and gas | air pollution violation | 2016 | CO-DPHE | $21,000 |
| Kerr-McGee Oil & Gas | Occidental Petroleum | oil and gas | air pollution violation | 2016 | CO-DPHE | $12,000 |
| Suncor Energy (Usa) Inc | Suncor Energy | oil and gas | hazardous waste violation | 2016 | CO-DPHE | $8,850 |
| Whiting Oil & Gas | Chord Energy | oil and gas | air pollution violation | 2016 | CO-DPHE | $18,900 |
| DCP Operating Company | Phillips 66 | oil and gas | air pollution violation | 2016 | CO-DPHE | $24,900 |
| Bargath LLC | Williams Companies | oil and gas | air pollution violation | 2016 | CO-DPHE | $11,725 |
| PDC Energy | Chevron | oil and gas | air pollution violation | 2016 | CO-DPHE | $11,340 |
