| 14001 | Imperator Investments LLC | Shawnee, KS 66217 | Oil Operator | Aug 2024 |
| 14002 | Imperial American Oil Corporation | Wichita, KS 67205 | Oil Operator | Dec 2009 |
| 14003 | Imperial Gas Resources LLC | Austin, TX 78701 | Oil & Gas Operator | May 2025 |
| 14004 | Imperial Occidental | | Oil & Gas Operator | Feb 2025 |
| 14005 | Imperial Oil & G | | Gas Operator | Jan 1990 |
| 14006 | Imperial Oil Com | | Oil & Gas Operator | Dec 1992 |
| 14007 | Imperial Oil Company | Houston, TX 77073 | Oil & Gas Operator | Oct 2004 |
| 14008 | Imperial Oil Of North Dakota, Inc. | | Oil & Gas Operator | Jul 2023 |
| 14009 | Imperial Oil Properties, Inc. | Wichita, KS 67201 | Oil & Gas Operator | Jun 2006 |
| 14010 | Imperial Operating Co., L.L.C. | Midland, TX 79701 | Oil Operator | Sep 2023 |
| 14011 | Imperial Petroleum, Inc. | Evansville, IN 47725 | Oil & Gas Operator | Jan 2005 |
| 14012 | Imperial-American Energy,Inc. | | Oil & Gas Operator | Jul 1978 |
| 14013 | Impetro Nonop LLC | | Oil Operator | Jan 2025 |
| 14014 | Impetro Oil & Gas, LLC | San Antonio, TX 78258 | Oil & Gas Operator | Jun 2018 |
| 14015 | Impetro Operating LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2020 |
| 14016 | Impetro Resources LLC | | Oil & Gas Operator | Mar 2025 |
| 14017 | Ina Street Operations, Inc. | Skellytown, TX 79080 | Oil & Gas Operator | Nov 2012 |
| 14018 | Inabnet Est., H. Inabnet, Agt. | | Gas Operator | Jul 2005 |
| 14019 | Inactive Operator | | Oil Operator | Dec 1982 |
| 14020 | Inca Oil Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | May 2009 |
| 14021 | Incendium Resources LLC | Argyle, TX 76226 | Oil & Gas Operator | May 2025 |
| 14022 | Incline Energy | Midland, TX 79710 | Oil & Gas Operator | May 2025 |
| 14023 | Incline Reserves | | Oil Operator | Apr 1988 |
| 14024 | Incline Reserves Inc | Topeka, KS BAD ADDR | Oil & Gas Operator | Mar 1994 |
| 14025 | Incremental Oil & Gas (Florence) LLC | | Oil & Gas Operator | Mar 2025 |
| 14026 | Incremental Oil & Gas USA Holdings Inc | Denver, CO 80202 | Oil & Gas Operator | Apr 2021 |
| 14027 | Inda Oil Unlimited | Dewey, OK 74029 | Oil Operator | Dec 2023 |
| 14028 | Independence Energy LLC | | Oil Operator | Jan 2025 |
| 14029 | Independence Resources MGMT, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Mar 2021 |
| 14030 | Independent Exploration Company | | Oil & Gas Operator | Dec 2000 |
| 14031 | Independent Oil Investors | Lakeside, MI 49116 | Oil & Gas Operator | Dec 1992 |
| 14032 | Independent Production Company | Greenwood VIllage, CO 80121 | Oil & Gas Operator | May 2003 |
| 14033 | Indexgeo & Associates, Inc. | Houston, TX 77002 | Oil & Gas Operator | Apr 2009 |
| 14034 | Indian Creek Oil, L.L.C. | Harrisville, WV 26362 | Gas Operator | Dec 2021 |
| 14035 | Indian Creek Resources Inc | Loveland, CO 80538 | Oil & Gas Operator | Dec 2024 |
| 14036 | Indian Exploration, Inc. | Lafayette, LA 70505 | Oil & Gas Operator | May 2025 |
| 14037 | Indian Hill Gas Co Inc | Fayette City, PA 15438-1203 | Oil & Gas Operator | Dec 2024 |
| 14038 | Indian Hills Resources LLC | Sewickley, PA 15143 | Oil & Gas Operator | Dec 2024 |
| 14039 | Indian Nation Energy Company | Wewoka, OK 74884-3456 | Oil & Gas Operator | Apr 2020 |
| 14040 | Indian Oil Company | Gainesville, TX 76241 | Oil & Gas Operator | May 2025 |
| 14041 | Indian Oil LTD. | Whitsett, TX 78075 | Oil & Gas Operator | May 2025 |
| 14042 | Indian Territory Operating LLC | Salado, TX 76571 | Oil & Gas Operator | Jan 2024 |
| 14043 | Indian Wells Oil | | Oil & Gas Operator | Jul 1995 |
| 14044 | Indian Wells Oil Co | Oklahoma City, OK 73116 | Oil & Gas Operator | Jan 2000 |
| 14045 | Indiana Petroleum Cont | | Oil Operator | Dec 2023 |
| 14046 | Indianola Oil Inc | Bartlesville, OK 74005 | Oil & Gas Operator | Aug 2000 |
| 14047 | Indiek, John | Offerle, KS 67563 | Oil Operator | Nov 2005 |
| 14048 | Indigo Haynesville LLC | | Gas Operator | Feb 2018 |
| 14049 | Indigo II Louisiana Operating LLC | | Oil & Gas Operator | Feb 2015 |
| 14050 | Indigo Minerals LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2022 |
| 14051 | Indigo Resources LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2019 |
| 14052 | Indrex Inc | Tulsa, OK 74133 | Oil & Gas Operator | Dec 2000 |
| 14053 | Industrial Gas Services Inc | Wheat Ridge, CO 80033 | Oil & Gas Operator | Feb 2023 |
| 14054 | Industrial Pollution Control | | Oil & Gas Operator | Mar 1985 |
| 14055 | Industry Standard Supplies Inc | Dover, OH 44622 | Oil & Gas Operator | Dec 2024 |
| 14056 | Indy Oil, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2004 |
| 14057 | Ineos USA Oil & Gas LLC | Denver, CO 80202 | Oil & Gas Operator | May 2025 |
| 14058 | Inexco Oil Company | Houston, TX 77210 | Oil & Gas Operator | Mar 2013 |
| 14059 | Inferno Energy | Yates Center, KS 66783 | Oil Operator | Jan 2025 |
| 14060 | Infield Discovery LLC | Madison, MS 39110 | Oil & Gas Operator | Dec 2024 |
| 14061 | Infinity Oil & Gas Inc | Nowata, OK 74048 | Oil Operator | Jun 1993 |
| 14062 | Infinity Oil & Gas Of TX, Inc. | Overland Park, KS 66210 | Oil & Gas Operator | May 2025 |
| 14063 | Infinity Oil & Gas Of Wyoming | Rock Springs, WY 82902 | Oil & Gas Operator | Feb 2009 |
| 14064 | Infinity Oil & Gas Of Wyoming Inc | | Oil Operator | Dec 2007 |
| 14065 | Infinity Oil And Gas, L.L.C. | | Oil & Gas Operator | Dec 2024 |
| 14066 | Infinity Oil, Inc. | Hays, KS 67601 | Oil Operator | Jan 2025 |
| 14067 | Inflection Energy (Pa) LLC | Montoursville, PA 17754-9702 | Gas Operator | Mar 2025 |
| 14068 | Inflow Petroleum Resources LP | Dallas, TX 75240 | Oil & Gas Operator | Sep 2008 |
| 14069 | Ingersoll Oil Inc | Hominy, OK 74035 | Oil & Gas Operator | Jun 2000 |
| 14070 | Ingersoll Rosinbaum Oil Inc | | Oil & Gas Operator | Feb 2025 |
| 14071 | Ingo Energy, LLC | | Oil & Gas Operator | Dec 2016 |
| 14072 | Ingram Exploration Inc | Seminole, OK 74868 | Oil & Gas Operator | Mar 2025 |
| 14073 | Ingram, J. Oil & Gas, Inc. | Plano, TX 75074 | Oil & Gas Operator | May 2025 |
| 14074 | Initial Energy Services, LLC | San Antonio, TX 78217 | Oil & Gas Operator | May 2025 |
| 14075 | Inject Technologies Inc. | Andrews, TX 79714 | Oil Operator | May 2025 |
| 14076 | Injection Well Service | Lone Grove, OK 73443-0156 | Oil Operator | Apr 2005 |
| 14077 | Inlan Oceans, LLC | Coffeyville, KS 67337 | Oil Operator | Oct 2024 |
| 14078 | Inland Drilling Co Inc | Garretsville, OH 44231 | Oil & Gas Operator | Dec 1992 |
| 14079 | Inland Gas Corp. | Houston, TX 77036 | Oil Operator | Dec 2011 |
| 14080 | Inland Minerals Management, Inc. | Austin, TX 78701 | Oil & Gas Operator | May 2025 |
| 14081 | Inland Ocean, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | May 2025 |
| 14082 | Inland Oil And Gas | Nacogdoches, TX 75961 | Oil & Gas Operator | Dec 1997 |
| 14083 | Inland Oil And Gas Corp. | | Gas Operator | Jun 2014 |
| 14084 | Inland Oil Corporation | Sapulpa, OK 74066 | Oil & Gas Operator | Jan 2025 |
| 14085 | Inland Operating Company | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2025 |
| 14086 | Inland Petroleum | Newark, OH 43055 | Oil Operator | Dec 2009 |
| 14087 | Inland Petroleum Company | | Oil & Gas Operator | Dec 1997 |
| 14088 | Inland Production Company | Vernal, UT 84079 | Oil & Gas Operator | Dec 2004 |
| 14089 | Inman Oil LLC | Ruidoso, NM 88355 | Oil Operator | Mar 2025 |
| 14090 | Innes Petroleum | | Oil Operator | Nov 1994 |
| 14091 | Innex California Inc. | | Oil & Gas Operator | Feb 2025 |
| 14092 | Innovative Exploration, LLC | Cincinnati, OH 45219 | Oil Operator | Dec 2023 |
| 14093 | Innovative Resources, Inc. | | Oil Operator | Feb 2022 |
| 14094 | Innoverse Production, LLC | Gainesville, TX 76240 | Oil & Gas Operator | May 2025 |
| 14095 | Inpetco, Inc. | | Oil & Gas Operator | Aug 1991 |
| 14096 | Inpex Eagle Ford, LLC | San Antonio, TX 78216 | Oil & Gas Operator | Dec 2022 |
| 14097 | Inr Ohio LLC | Morgantown, WV 26508-9209 | Oil & Gas Operator | Dec 2024 |
| 14098 | Inr Opr LLC | Morgantown, WV 26508-9201 | Gas Operator | Mar 2025 |
| 14099 | Inspire Oil And Gas Inc. | Katy, TX 77449 | Oil & Gas Operator | May 2025 |
| 14100 | Instrat Inc. | | Oil & Gas Operator | Dec 1992 |