| 14201 | Infinity Oil & Gas Of TX, Inc. | Overland Park, KS 66210 | Oil & Gas Operator | Feb 2026 |
| 14202 | Infinity Oil & Gas Of Wyoming | Rock Springs, WY 82902 | Oil & Gas Operator | Feb 2009 |
| 14203 | Infinity Oil And Gas, L.L.C. | | Oil & Gas Operator | Dec 2024 |
| 14204 | Infinity Oil, Inc. | Hays, KS 67601 | Oil Operator | Sep 2025 |
| 14205 | Inflection Energy (Pa) LLC | Montoursville, PA 17754-9702 | Gas Operator | Mar 2025 |
| 14206 | Inflow Petroleum Resources LP | Dallas, TX 75240 | Oil & Gas Operator | Sep 2008 |
| 14207 | Ingersoll Oil Inc | Hominy, OK 74035 | Oil & Gas Operator | Jun 2000 |
| 14208 | Ingersoll Rosinbaum Oil Inc | | Oil & Gas Operator | Oct 2025 |
| 14209 | Ingo Energy, LLC | | Oil & Gas Operator | Dec 2016 |
| 14210 | Ingram Exploration Inc | Seminole, OK 74868 | Oil & Gas Operator | Oct 2025 |
| 14211 | Ingram, J. Oil & Gas, Inc. | Plano, TX 75074 | Oil & Gas Operator | Feb 2026 |
| 14212 | Initial Energy Services, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Feb 2026 |
| 14213 | Inject Technologies Inc. | Andrews, TX 79714 | Oil Operator | Feb 2026 |
| 14214 | Injection Well Service | Lone Grove, OK 73443-0156 | Oil Operator | Apr 2005 |
| 14215 | Inlan Oceans, LLC | Coffeyville, KS 67337 | Oil Operator | Jun 2025 |
| 14216 | Inland Drilling Co Inc | Garretsville, OH 44231 | Oil & Gas Operator | Dec 1992 |
| 14217 | Inland Gas Corp. | Houston, TX 77036 | Oil Operator | Dec 2011 |
| 14218 | Inland Minerals Management, Inc. | Austin, TX 78701 | Oil & Gas Operator | Feb 2026 |
| 14219 | Inland Ocean, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Feb 2026 |
| 14220 | Inland Oil And Gas Company, Inc. | Chireno, TX 75937 | Oil & Gas Operator | Jun 2005 |
| 14221 | Inland Oil And Gas Corp. | | Gas Operator | Jun 2014 |
| 14222 | Inland Oil Corporation | Sapulpa, OK 74067 | Oil & Gas Operator | Nov 2025 |
| 14223 | Inland Operating Company | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2025 |
| 14224 | Inland Petroleum | Newark, OH 43055 | Oil Operator | Dec 2009 |
| 14225 | Inland Petroleum Company | | Oil & Gas Operator | Dec 1997 |
| 14226 | Inland Production Company | Vernal, UT 84079 | Oil & Gas Operator | Dec 2004 |
| 14227 | Inman Oil LLC | Ruidoso, NM 88355 | Oil Operator | Oct 2025 |
| 14228 | Innes Petroleum | | Oil Operator | Nov 1994 |
| 14229 | Innex California Inc. | | Oil & Gas Operator | Oct 2025 |
| 14230 | Innovative Exploration, LLC | Cincinnati, OH 45219 | Oil Operator | Dec 2023 |
| 14231 | Innovative Resources, Inc. | | Oil Operator | Feb 2022 |
| 14232 | Innoverse Production, LLC | Gainesville, TX 76240 | Oil & Gas Operator | Feb 2026 |
| 14233 | Inpetco, Inc. | | Oil & Gas Operator | Aug 1991 |
| 14234 | Inpex Eagle Ford, LLC | San Antonio, TX 78216 | Oil & Gas Operator | Dec 2022 |
| 14235 | Inr Ohio LLC | Morgantown, WV 26508-9209 | Oil & Gas Operator | Sep 2025 |
| 14236 | Inr Opr LLC | Morgantown, WV 26508-9201 | Gas Operator | Nov 2025 |
| 14237 | Inspire Oil And Gas Inc. | Katy, TX 77449 | Oil Operator | Feb 2026 |
| 14238 | Instrat Inc. | | Oil & Gas Operator | Dec 1992 |
| 14239 | Int'L Petr & Expl Opr Corp | | Oil & Gas Operator | Jan 2012 |
| 14240 | Integras Operating, LLC | Irving, TX 75062 | Oil & Gas Operator | Feb 2026 |
| 14241 | Integrated Energy Inc | Houston, TX 77002 | Oil & Gas Operator | Aug 2003 |
| 14242 | Integrated Energy Service Corp | Cleveland, OK 74020 | Oil & Gas Operator | Nov 1998 |
| 14243 | Integrated Exploration & Production LLC | | Oil & Gas Operator | Aug 2024 |
| 14244 | Integrated Operating Corporation | Dallas, TX 75243 | Oil & Gas Operator | Feb 2026 |
| 14245 | Integrated Petroleum Corporation | Denver, CO 80202 | Oil Operator | Jan 2010 |
| 14246 | Integrity Funding Sys Inc | Lancaster, PA 17602-1933 | Gas Operator | Dec 2007 |
| 14247 | Integrity Oil & Gas | Golden, CO 80401 | Oil & Gas Operator | May 2011 |
| 14248 | Inter-American Energy Corp. | Toronto, On Canada M5a1n1, 33139 | Gas Operator | Dec 2019 |
| 14249 | Inter-American Petroleum | | Oil & Gas Operator | Dec 2006 |
| 14250 | Inter-State Ener | | Oil Operator | Oct 1987 |
| 14251 | Inter-States Oil & Gas Inc | Edmond, OK 73003-0023 | Oil & Gas Operator | Apr 2020 |
| 14252 | Intercity Management Corp. | Corpus Chrsti, TX 78412 | Oil & Gas Operator | Feb 2026 |
| 14253 | Intercoast Oil And Gas | Tulsa, OK 74136 | Oil & Gas Operator | Mar 1997 |
| 14254 | Intercoast Oil And Gas Company | Tulsa, OK 74136 | Oil & Gas Operator | Jun 1997 |
| 14255 | Intercoastal Energy, Inc. | Houston, TX 77055 | Oil & Gas Operator | Aug 2003 |
| 14256 | Intercoastal Operating Co. | | Oil Operator | Dec 1980 |
| 14257 | Intercontinental Petroleum | | Oil Operator | Oct 2012 |
| 14258 | Intercontinental Tech Group Inc. | | Oil & Gas Operator | Dec 2004 |
| 14259 | Intergrated Drill & Expl Inc | Tulsa, OK 74136-1071 | Oil & Gas Operator | Sep 1994 |
| 14260 | Intergrated Petroleum Corp. | Abilene, TX 79602 | Oil & Gas Operator | Feb 2026 |
| 14261 | Intergy Production LLC | Edmond, OK 73083 | Oil & Gas Operator | Nov 2025 |
| 14262 | Intergy, Inc. | Lomita, CA 90717 | Oil Operator | Jun 1997 |
| 14263 | Interior Oil Cor | | Gas Operator | Jun 1990 |
| 14264 | Interior Oil Corporation | Derby, KS 67037 | Oil & Gas Operator | Jan 2023 |
| 14265 | Interline Resources Corp | Casper, WY 82601 | Oil & Gas Operator | Oct 2009 |
| 14266 | Intermountain Leasing, Inc. | Billings, MT 59103 | Gas Operator | Mar 2020 |
| 14267 | Intermountain Operating, Inc. | Billings, MT 59103 | Oil & Gas Operator | Jul 2001 |
| 14268 | Intermountain Petroleum Co | | Oil Operator | Dec 2011 |
| 14269 | Intermountain Refining Co, Inc | Farmington, NM 87499 | Gas Operator | Aug 2006 |
| 14270 | International Basic Res., Inc. | Abilene, TX 79604 | Oil & Gas Operator | May 1996 |
| 14271 | International Energy Company LLC | Tulsa, OK 74136-3922 | Oil & Gas Operator | Nov 2025 |
| 14272 | International Energy Corporation | Tulsa, OK 74136-3922 | Oil & Gas Operator | Dec 2018 |
| 14273 | International Oil & Gas Corp. | | Oil & Gas Operator | Dec 1986 |
| 14274 | International Oil&Gas Consultant | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 14275 | International Petroleum Service, LLC | | Oil Operator | Dec 2017 |
| 14276 | International Ventures Inc | Pogasa Springs, CO 81147 | Oil Operator | Jul 1996 |
| 14277 | International Western Oil Corp | Weatherford, TX 76086 | Oil & Gas Operator | Feb 2026 |
| 14278 | Internorth Inc | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2014 |
| 14279 | Interstate Energy Inc | | Oil & Gas Operator | Dec 2002 |
| 14280 | Interstate Explorations LLC | Houston, TX 77010 | Oil & Gas Operator | Feb 2026 |
| 14281 | Interstate Gas Co. | | Gas Operator | Dec 1941 |
| 14282 | Interstate Gas MKT Inc | Indiana, PA 15701 | Oil & Gas Operator | Dec 2018 |
| 14283 | Interstate Natural Gas Company, LLC | Pikeville, KY 41502 | Oil & Gas Operator | Dec 2023 |
| 14284 | Interstate Operating LLC | Tulsa, OK 74101-0535 | Oil & Gas Operator | Aug 2013 |
| 14285 | Interstate Producing Ser Inc | | Oil & Gas Operator | May 1986 |
| 14286 | Interstate Producing Servs,Inc | | Oil & Gas Operator | May 1987 |
| 14287 | Interstate Production Company, Inc. | Buckhannon, WV 26201-0000 | Oil & Gas Operator | Dec 2021 |
| 14288 | Intoil, Inc. | Englewood, CO 80155 | Oil & Gas Operator | Dec 2002 |
| 14289 | Intrepid Drilling, LLC | | Oil & Gas Operator | Jan 2025 |
| 14290 | Intrepid Energy Corporation | Independence, KS 67301 | Oil Operator | Mar 2016 |
| 14291 | Intrepid Oil & Gas LLC | Denver, CO 80202 | Oil & Gas Operator | Apr 2021 |
| 14292 | Intrepid Operating LTD., Co | Hobbs, NM 88241 | Oil & Gas Operator | Nov 2009 |
| 14293 | Intrepid Production Corporation | Denver, CO 80202 | Oil & Gas Operator | Oct 2025 |
| 14294 | Investco Oil And Gas Inc | | Oil & Gas Operator | Jan 2025 |
| 14295 | Investment Equipment LLC | FT Morgan, CO 80701 | Oil & Gas Operator | Oct 2025 |
| 14296 | Investment Land Services Inc | | Oil Operator | Oct 2001 |
| 14297 | Investment Operating Co | Stillwater, OK 74075-8572 | Oil Operator | Aug 2025 |
| 14298 | Investment Trends Corp. | | Gas Operator | Mar 1988 |
| 14299 | Investors Drilli | | Gas Operator | Jan 1993 |
| 14300 | Investors Oil, Inc. | | Oil Operator | Mar 1985 |