| 5201 | Independence Resources MGMT, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Mar 2021 |
| 5202 | Indexgeo & Associates, Inc. | Houston, TX 77002 | Oil & Gas Operator | Apr 2009 |
| 5203 | Indian Exploration, Inc. | Lafayette, LA 70505 | Oil & Gas Operator | Apr 2024 |
| 5204 | Indian Oil Company | Gainesville, TX 76241 | Oil & Gas Operator | Apr 2024 |
| 5205 | Indian Oil LTD. | Whitsett, TX 78075 | Oil & Gas Operator | Apr 2024 |
| 5206 | Indigo Minerals LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2022 |
| 5207 | Indigo Resources LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2019 |
| 5208 | Indy Oil, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2004 |
| 5209 | Ineos USA Oil & Gas LLC | Denver, CO 80202 | Oil & Gas Operator | Apr 2024 |
| 5210 | Inexco Oil Company | Houston, TX 77210 | Oil & Gas Operator | Mar 2013 |
| 5211 | Infinity Hydrocarbons LLC | Houston, TX 77079 | Oil & Gas Operator | Aug 2022 |
| 5212 | Infinity Oil & Gas Inc | Nowata, OK 74048 | Oil Operator | Jun 1993 |
| 5213 | Infinity Oil & Gas Of TX, Inc. | Overland Park, KS 66210 | Oil & Gas Operator | Apr 2024 |
| 5214 | Ingram, J. Oil & Gas, Inc. | Plano, TX 75074 | Oil & Gas Operator | Apr 2024 |
| 5215 | Initial Energy Services, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Apr 2024 |
| 5216 | Inject Technologies Inc. | Andrews, TX 79714 | Oil Operator | Apr 2024 |
| 5217 | Inland Gas Corp. | Houston, TX 77036 | Oil Operator | Dec 2011 |
| 5218 | Inland Minerals Management, Inc. | Austin, TX 78701 | Oil & Gas Operator | Apr 2024 |
| 5219 | Inland Ocean, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Apr 2024 |
| 5220 | Inland Oil And Gas | Nacogdoches, TX 75961 | Oil & Gas Operator | Dec 1997 |
| 5221 | Innoverse Production, LLC | Gainesville, TX 76240 | Oil & Gas Operator | Apr 2024 |
| 5222 | Inpex Eagle Ford, LLC | San Antonio, TX 78216 | Oil & Gas Operator | Dec 2022 |
| 5223 | Inspire Oil And Gas Inc. | Katy, TX 77449 | Oil & Gas Operator | Apr 2024 |
| 5224 | Integras Operating, LLC | Irving, TX 75062 | Oil & Gas Operator | Apr 2024 |
| 5225 | Integrated Operating Corporation | Dallas, TX 75243 | Oil & Gas Operator | Apr 2024 |
| 5226 | Intercity Management Corp. | Corpus Chrsti, TX 78412 | Oil & Gas Operator | Apr 2024 |
| 5227 | Intercoast Oil And Gas | Tulsa, OK 74136 | Oil & Gas Operator | Mar 1997 |
| 5228 | Intercoast Oil And Gas Company | Tulsa, OK 74136 | Oil & Gas Operator | Jun 1997 |
| 5229 | Intercoastal Energy, Inc. | Houston, TX 77055 | Oil & Gas Operator | Aug 2003 |
| 5230 | Intergrated Petroleum Corp. | Abilene, TX 79602 | Oil & Gas Operator | Apr 2024 |
| 5231 | Interior Oil Corporation | Derby, KS 67037 | Oil & Gas Operator | Jan 2023 |
| 5232 | International Basic Res., Inc. | Abilene, TX 79604 | Oil & Gas Operator | May 1996 |
| 5233 | International Oil&Gas Consultant | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 5234 | International Ventures, Inc. | Pogasa Springs, CO 81147 | Oil Operator | Jul 1996 |
| 5235 | International Western Oil Corp | Weatherford, TX 76086 | Oil & Gas Operator | Apr 2024 |
| 5236 | Interstate Explorations LLC | Houston, TX 77010 | Oil & Gas Operator | Apr 2024 |
| 5237 | Interstate Production Company, Inc. | Buckhannon, WV 26201-0000 | Oil & Gas Operator | Dec 2021 |
| 5238 | Invoil, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Apr 2024 |
| 5239 | Ip Petroleum Company, Inc. | Houston, TX 77210 | Oil & Gas Operator | Mar 2008 |
| 5240 | Ipact | Austin, TX 78734 | Oil & Gas Operator | Apr 2024 |
| 5241 | Ipr Energy Partners, L.P. | Bowie, TX 76230 | Oil & Gas Operator | Aug 2014 |
| 5242 | Ipr Energy Partners, LLC | Bowie, TX 76230 | Oil & Gas Operator | Apr 2024 |
| 5243 | Ipr USA Corp. | Irving, TX 75039 | Oil & Gas Operator | Jun 2009 |
| 5244 | Ipt Oil Company | Evansville, IN 47706 | Oil & Gas Operator | Apr 2024 |
| 5245 | Ira Oil & Gas LLC | Addison, TX 75001 | Oil & Gas Operator | Jul 2008 |
| 5246 | Ira Testers | Ira, TX 79527 | Oil & Gas Operator | Apr 2024 |
| 5247 | Irion Corporation, The | San Angelo, TX 76906 | Oil & Gas Operator | Jun 2021 |
| 5248 | Irish City Oil & Gas, Inc. | Canyon Lake, TX 78133 | Oil & Gas Operator | Apr 2024 |
| 5249 | Irish Oil & Gas Co. | Houston, TX 77242 | Oil & Gas Operator | Aug 2003 |
| 5250 | Iron Horse Oil & Gas, Inc. | Albany, TX 76430 | Oil & Gas Operator | Apr 2024 |
| 5251 | Iron Orchard Operating LLC | Houston, TX 77024 | Oil & Gas Operator | Apr 2024 |
| 5252 | Iron Sights Operating Inc | Stillwater, OK 74076 | Oil & Gas Operator | Jul 2022 |
| 5253 | Ironhorse Operations, LLC | Kilgore, TX 75663 | Oil Operator | Apr 2024 |
| 5254 | Ironroc Energy | The Woodlands, TX 77381 | Oil & Gas Operator | Apr 2024 |
| 5255 | Ironwood Oil & Gas LLC | Houston, TX 77067 | Oil & Gas Operator | Jun 2014 |
| 5256 | Irvin Petroleum | Stinnett, TX 79083 | Oil & Gas Operator | Sep 1996 |
| 5257 | Irvin Petroleum Inc. | Stinnett, TX 79083 | Oil & Gas Operator | Apr 2016 |
| 5258 | Irwin-Crum | Nocona, TX 76255 | Oil Operator | Apr 2024 |
| 5259 | Isaacson Energy Resources, LLC | Austin, TX 78741 | Oil & Gas Operator | Apr 2024 |
| 5260 | Isbell, Bob G. Operating | Cisco, TX 76437 | Oil & Gas Operator | Mar 2015 |
| 5261 | Iskandia Energy Operating, Inc. | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
| 5262 | Island Exploration | Houston, TX 77058 | Oil & Gas Operator | Apr 2024 |
| 5263 | Isom Energy, Inc. | San Angelo, TX 76904 | Oil & Gas Operator | May 2018 |
| 5264 | It'LL Do Oil Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2024 |
| 5265 | Italian-American Oil Co., Inc. | Tomball, TX 77377 | Oil & Gas Operator | Apr 2024 |
| 5266 | Itech Oil Company | Cypress, TX 77429 | Oil & Gas Operator | Aug 2007 |
| 5267 | Itx Corporation | Dallas, TX 75225 | Oil & Gas Operator | Apr 2024 |
| 5268 | Itx Pipeline Company, LLC | Dallas, TX 75225 | Oil & Gas Operator | Apr 2024 |
| 5269 | Iv L.C. | San Antonio, TX 78209 | Oil & Gas Operator | Apr 2024 |
| 5270 | Iva Oil | Cisco, TX 76437 | Oil & Gas Operator | Apr 2024 |
| 5271 | Ivory Energy, LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2024 |
| 5272 | Iwr Operating, LLC | Dallas, TX 75248 | Oil Operator | Apr 2024 |
| 5273 | J & A Oil Company | Odessa, TX 79764 | Oil & Gas Operator | Apr 2024 |
| 5274 | J & A Oil Properties | Olney, TX 76374 | Oil & Gas Operator | Aug 2018 |
| 5275 | J & A Operating | Bowie, TX 76230 | Oil & Gas Operator | Apr 2024 |
| 5276 | J & D Services | Graham, TX 76450 | Oil Operator | Feb 2017 |
| 5277 | J & F Oil Co. | Olney, TX 76374 | Oil & Gas Operator | Apr 2024 |
| 5278 | J & G Enterprise LTD., Co. | Artesia, NM 88211 | Oil & Gas Operator | Nov 1997 |
| 5279 | J & J Oil Company | Luling, TX 78648 | Oil & Gas Operator | Mar 2015 |
| 5280 | J & J Oil Company LLC | Lubbock, TX 79424 | Oil Operator | Apr 2024 |
| 5281 | J & J Oil Venture | Jacksonville, TX 75766 | Oil & Gas Operator | Aug 1996 |
| 5282 | J & J Oil, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Aug 2012 |
| 5283 | J & J Operating | Graford, TX 76449 | Oil & Gas Operator | Apr 2024 |
| 5284 | J & J Services Company | San Angelo, TX 76904 | Oil & Gas Operator | Apr 2024 |
| 5285 | J & J Trading | Abilene, TX 79608 | Oil & Gas Operator | Dec 2004 |
| 5286 | J & J Whiteside Inc. | Comanche, TX 76442 | Oil & Gas Operator | Apr 2024 |
| 5287 | J & K Production LLC | Konawa, OK 74849 | Oil Operator | Feb 2024 |
| 5288 | J & L Partners | Dallas, TX 75370 | Oil & Gas Operator | Dec 2005 |
| 5289 | J & M Co Inc | Abilene, TX 79601 | Oil & Gas Operator | Jan 2016 |
| 5290 | J & M Production | Luling, TX 78648 | Oil & Gas Operator | Nov 2019 |
| 5291 | J & M SWD, LLC | Stamford, TX 79553 | Oil Operator | Apr 2024 |
| 5292 | J & R Producing Co. | Plano, TX 75024 | Oil & Gas Operator | Dec 2012 |
| 5293 | J & S Gas Company | Ranger, TX 76470 | Oil & Gas Operator | Oct 2003 |
| 5294 | J & S Oil Company | Graham, TX 76450 | Oil & Gas Operator | Apr 2022 |
| 5295 | J & S Operating | Shiner, TX 77984 | Oil & Gas Operator | Dec 2002 |
| 5296 | J & TG, LLC | Albany, TX 76430 | Oil & Gas Operator | Apr 2024 |
| 5297 | J & W Oil Co.-W. F. | Eastland, TX 76448 | Oil & Gas Operator | Apr 2024 |
| 5298 | J B Energy, Inc. | Denton, TX 76206 | Oil & Gas Operator | Aug 2018 |
| 5299 | J B J Oil Properties, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 5300 | J Bar D | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2024 |