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 |
|---|---|---|---|---|---|---|
| EOG Resources, Inc. | EOG Resources | oil and gas | air pollution violation | 2019 | WY-ENV | $15,000 |
| Merit Energy Company, LLC | Merit Energy | oil and gas | air pollution violation | 2019 | WY-ENV | $15,000 |
| Sinclair Casper Refining Co. | HF Sinclair Corporation | oil and gas | air pollution violation | 2018 | WY-ENV | $31,500 |
| XTO Energy, Inc. | Exxon Mobil | oil and gas | air pollution violation | 2017 | WY-ENV | $15,000 |
| Burlington Resources Oil & Gas Company LP | ConocoPhillips | oil and gas | air pollution violation | 2017 | WY-ENV | $6,000 |
| Tronox Alkali Wyoming Corp. | Genesis Energy | pipelines | environmental violation | 2017 | WY-ENV | $80,000 |
| Tronox Alkali Wyoming Corp. | Genesis Energy | pipelines | water pollution violation | 2017 | WY-ENV | $80,000 |
| Tronox Alkali Wyoming Corp. | Genesis Energy | pipelines | air pollution violation | 2016 | WY-ENV | $16,000 |
| Mountain Cement Co. | Eagle Materials | building materials | air pollution violation | 2015 | WY-ENV | $22,000 |
| Abraxas Petroleum Corp. | Abraxas Petroleum | oil and gas | air pollution violation | 2014 | WY-ENV | $5,000 |
| Frontier Refining LLC | HF Sinclair Corporation | oil and gas | air pollution violation | 2014 | WY-ENV | $35,000 |
| Exxon Mobil Corp. | Exxon Mobil | oil and gas | air pollution violation | 2013 | WY-ENV | $10,000 |
| Hermes Consolidated, LLC | Par Pacific Holdings | oil and gas | air pollution violation | 2013 | WY-ENV | $48,000 |
| Hermes Consolidated, LLC | Par Pacific Holdings | oil and gas | air pollution violation | 2013 | WY-ENV | $10,000 |
| QEP Energy Co. | Diamondback Energy | oil and gas | air pollution violation | 2013 | WY-ENV | $7,000 |
| Baker Hughes Oilfield Operations, Inc. | Baker Hughes | oilfield services and supplies | water pollution violation | 2013 | WY-ENV | $15,000 |
| Frontier Refining LLC | HF Sinclair Corporation | oil and gas | air pollution violation | 2013 | WY-ENV | $10,000 |
| Wyoming Refining Co. | Par Pacific Holdings | oil and gas | environmental violation | 2012 | WY-ENV | $374,400 |
| Hermes Consolidated, LLC | Par Pacific Holdings | oil and gas | air pollution violation | 2012 | WY-ENV | $17,000 |
| Jonah Gas Gathering Co. | Enterprise Products Partners | oil and gas | air pollution violation | 2012 | WY-ENV | $112,500 |
| Hermes Consolidated, LLC | Par Pacific Holdings | oil and gas | air pollution violation | 2011 | WY-ENV | $8,000 |
| Merit Energy Company, LLC | Merit Energy | oil and gas | air pollution violation | 2011 | WY-ENV | $40,000 |
| Sinclair Wyoming Refining Co. | HF Sinclair Corporation | oil and gas | air pollution violation | 2011 | WY-ENV | $163,000 |
| Merit Energy Company, LLC | Merit Energy | oil and gas | air pollution violation | 2011 | WY-ENV | $42,500 |
| Sinclair Wyoming Refining Co. | HF Sinclair Corporation | oil and gas | environmental violation | 2011 | WY-ENV | $850,000 |
| QEP Resources | Diamondback Energy | oil and gas | air pollution violation | 2011 | WY-ENV | $35,000 |
| Sinclair Casper Refining Co. | HF Sinclair Corporation | oil and gas | air pollution violation | 2011 | WY-ENV | $22,500 |
| Jonah Gas Gathering Co. | Enterprise Products Partners | oil and gas | air pollution violation | 2010 | WY-ENV | $12,500 |
| Sinclair Wyoming Refining Co. | HF Sinclair Corporation | oil and gas | environmental violation | 2010 | WY-ENV | $139,740 |
| Exxon Mobil Corp. | Exxon Mobil | oil and gas | air pollution violation | 2010 | WY-ENV | $2,400,000 |
| Frontier Refining, Inc. | HF Sinclair Corporation | oil and gas | environmental violation | 2010 | WY-ENV | $64,918 |
| Sinclair Wyoming Refining Co. | HF Sinclair Corporation | oil and gas | air pollution violation | 2010 | WY-ENV | $10,000 |
| Whiting Oil & Gas Corp. | Chord Energy | oil and gas | air pollution violation | 2010 | WY-ENV | $7,500 |
| Merit Energy Company | Merit Energy | oil and gas | air pollution violation | 2010 | WY-ENV | $35,000 |
| Sinclair Wyoming Refining Co. | HF Sinclair Corporation | oil and gas | hazardous waste violation | 2010 | WY-ENV | $660,000 |
| Hermes Consolidated, LLC | Par Pacific Holdings | oil and gas | air pollution violation | 2010 | WY-ENV | $40,000 |
| Sinclair Wyoming Refining Co. | HF Sinclair Corporation | oil and gas | air pollution violation | 2010 | WY-ENV | $10,000 |
| Frontier Refining, Inc. | HF Sinclair Corporation | oil and gas | water pollution violation | 2009 | WY-ENV | $24,000 |
| Hyland Enterprises, Inc. | Superior Energy Services | oilfield services and supplies | environmental violation | 2009 | WY-ENV | $10,000 |
| Wyoming Refining Co. | Par Pacific Holdings | oil and gas | water pollution violation | 2009 | WY-ENV | $159,600 |
| Abraxas Petroleum Corp. | Abraxas Petroleum | oil and gas | air pollution violation | 2009 | WY-ENV | $10,000 |
| Copano Pipelines/Rocky Mountains, LLC | Kinder Morgan | pipelines | air pollution violation | 2009 | WY-ENV | $44,000 |
| Frontier Refining Inc. | HF Sinclair Corporation | oil and gas | environmental violation | 2009 | WY-ENV | $850,000 |
| Sinclair Wyoming Refining Co. | HF Sinclair Corporation | oil and gas | air pollution violation | 2009 | WY-ENV | $23,275 |
| Frontier Refining Inc. | HF Sinclair Corporation | oil and gas | water pollution violation | 2009 | WY-ENV | $7,200 |
| Frontier Refining Inc. | HF Sinclair Corporation | oil and gas | hazardous waste violation | 2009 | WY-ENV | $461,656 |
| Wyoming Refining Co. | Par Pacific Holdings | oil and gas | water pollution violation | 2009 | WY-ENV | $137,000 |
| Sinclair Casper Refining Co. | HF Sinclair Corporation | oil and gas | air pollution violation | 2008 | WY-ENV | $18,000 |
| Burlington Resources Oil & Gas Company LP | ConocoPhillips | oil and gas | air pollution violation | 2008 | WY-ENV | $21,850 |
| Citation Oil and Gas Corp. | Citation Oil & Gas | oil and gas | water pollution violation | 2008 | WY-ENV | $10,800 |
| Hermes Consolidated, Inc. | Par Pacific Holdings | oil and gas | air pollution violation | 2008 | WY-ENV | $25,000 |
| Sinclair Casper Refining Co. | HF Sinclair Corporation | oil and gas | air pollution violation | 2008 | WY-ENV | $15,000 |
| Colorado Interstate Gas Co. | Kinder Morgan | pipelines | air pollution violation | 2008 | WY-ENV | $83,718 |
| Wyoming Refining Co. | Par Pacific Holdings | oil and gas | water pollution violation | 2008 | WY-ENV | $26,400 |
| Hermes Consolidated, Inc. | Par Pacific Holdings | oil and gas | air pollution violation | 2008 | WY-ENV | $22,500 |
| Sinclair Wyoming Refining Co. | HF Sinclair Corporation | oil and gas | environmental violation | 2008 | WY-ENV | $220,500 |
| Burlington Resources Oil & Gas Company LP | ConocoPhillips | oil and gas | environmental violation | 2008 | WY-ENV | $77,500 |
| Rowdy Pipeline, LLC | Encap Investments | private equity (including portfolio companies) | air pollution violation | 2008 | WY-ENV | $7,500 |
| Hermes Consolidated, Inc. | Par Pacific Holdings | oil and gas | environmental violation | 2007 | WY-ENV | $20,876 |
| Sinclair Wyoming Refining Co. | HF Sinclair Corporation | oil and gas | air pollution violation | 2007 | WY-ENV | $17,500 |
| Burlington Resources Oil & Gas Company LP | ConocoPhillips | oil and gas | air pollution violation | 2007 | WY-ENV | $7,500 |
| Merit Energy Company | Merit Energy | oil and gas | air pollution violation | 2007 | WY-ENV | $5,000 |
| Sinclair Casper Refining Co. | HF Sinclair Corporation | oil and gas | air pollution violation | 2007 | WY-ENV | $9,100 |
| Sinclair Wyoming Refining Co. | HF Sinclair Corporation | oil and gas | air pollution violation | 2007 | WY-ENV | $17,000 |
| Wyoming Refining Co. | Par Pacific Holdings | oil and gas | water pollution violation | 2007 | WY-ENV | $10,000 |
| Sinclair Casper Refining Co. | HF Sinclair Corporation | oil and gas | air pollution violation | 2007 | WY-ENV | $40,000 |
| Merit Energy Company | Merit Energy | oil and gas | air pollution violation | 2006 | WY-ENV | $10,000 |
| HollyFrontier Cheyenne Refining, LLC | HF Sinclair Corporation | oil and gas | environmental violation | 2021 | WY-ENV | $95,075 |
| EAGLE NATRIUM LLC | Westlake Chemical | chemicals | air pollution violation | 2017 | WV-ENV | $25,000 |
| Stone Energy Corporation | Talos Energy | oil and gas | air pollution violation | 2013 | WV-ENV | $50,000 |
| MAAX USA | Lone Star Funds | private equity (including portfolio companies) | air pollution violation | 2011 | WV-ENV | $5,000 |
| Sunoco Inc. | Energy Transfer | pipelines | air pollution violation | 2009 | WV-ENV | $25,000 |
| Sunoco Inc. | Energy Transfer | pipelines | air pollution violation | 2008 | WV-ENV | $73,500 |
| MAAX USA | Lone Star Funds | private equity (including portfolio companies) | air pollution violation | 2005 | WV-ENV | $42,000 |
| XTO Energy Inc. | Exxon Mobil | oil and gas | environmental violation | 2021 | WV-ENV | $53,591 |
| Ameritech | AT&T | telecommunications | utility service violation | 2000 | WI-PSC | $10,000,000 |
| North American Company for Life and Health Insurance | Sammons Enterprises | diversified | insurance violation | 2007 | WI-INS | $29,268 |
| Stewart Title Guaranty Co. | Stewart Information Services | financial services | insurance violation | 2010 | WI-INS | $7,500 |
| DIRECTV | AT&T | telecommunications | consumer protection violation | 2017 | WI-DATC | $292,500 |
| DirecTV, Inc. | AT&T | telecommunications | consumer protection violation | 2006 | WI-AG | $115,000 |
| Rent-A-Center Inc., | Rent-A-Center | retailing | consumer protection violation | 2002 | WI-AG | $8,400,000 |
| Valero Renewable Fuels Company, LLC | Valero Energy | oil and gas | air pollution violation | 2012 | WI-AG | $17,000 |
| Waste Management | Waste Management Inc. | waste management and environmental services | environmental violation | 2011 | WI-AG | $100,000 |
| Waste Management of Wisconsin, Inc. | Waste Management Inc. | waste management and environmental services | air pollution violation | 2009 | WI-AG | $75,000 |
| Waste Management of Wisconsin, Inc. | Waste Management Inc. | waste management and environmental services | environmental violation | 2003 | WI-AG | $33,841 |
| Waste Management, Inc. | Waste Management Inc. | waste management and environmental services | air pollution violation | 2005 | WI-AG | $128,395 |
| Brookshire Grocery Company | Brookshire Grocery | retailing | Family and Medical Leave Act | 2014 | WHD | $19,321 |
| Dynegy Moss Landing, LLC | Vistra Energy | utilities and power generation | Family and Medical Leave Act | 2014 | WHD | $56,868 |
| US Airways, Inc. | American Airlines | airlines | Family and Medical Leave Act | 2014 | WHD | $25,001 |
| Sysco San Diego, Inc | Sysco | wholesalers | Family and Medical Leave Act | 2013 | WHD | $5,657 |
| Steward Healtcare System | Steward Health Care | healthcare services | Family and Medical Leave Act | 2012 | WHD | $8,337 |
| H. E. Butt Grocery Company, LP | H-E-B Grocery | retailing | Family and Medical Leave Act | 2011 | WHD | $5,575 |
| Sysco Kansas City Inc. | Sysco | wholesalers | Family and Medical Leave Act | 2011 | WHD | $24,545 |
| AT&T | AT&T | telecommunications | Family and Medical Leave Act | 2011 | WHD | $55,979 |
| The Shaw Group | Shaw Group | construction and engineering | Family and Medical Leave Act | 2009 | WHD | $23,769 |
| Waste Management, Inc. | Waste Management Inc. | waste management and environmental services | Family and Medical Leave Act | 2008 | WHD | $40,000 |
| Comfort Systems USA/Bristol, Inc. | Comfort Systems USA | construction and engineering | Family and Medical Leave Act | 2007 | WHD | $8,840 |
| IASIS Healthcare | Steward Health Care | healthcare services | Family and Medical Leave Act | 2005 | WHD | $7,461 |
| SBC Communications, Inc. | AT&T | telecommunications | Family and Medical Leave Act | 2004 | WHD | $15,000 |
| The Premcor Refining Group, Inc. | Valero Energy | oil and gas | Family and Medical Leave Act | 2004 | WHD | $19,000 |
| Southwestern Bell Communications | AT&T | telecommunications | Family and Medical Leave Act | 2004 | WHD | $20,000 |
