| 5201 | Huntwood Resources, LLC | Huntsville, TX 77340 | Oil Operator | Nov 2024 |
| 5202 | Hurd Ent.LTD/U.S.Enercorp,LLC | San Antonio, TX 78209 | Oil & Gas Operator | Aug 2002 |
| 5203 | Hurd Enterprises, LTD. | San Antonio, TX 78209 | Oil & Gas Operator | Nov 2024 |
| 5204 | Hurley Petroleum Corporation | Baton Rouge, LA 70821 | Oil & Gas Operator | Feb 2000 |
| 5205 | Hurricane Oil And Gas Co., Inc. | Houston, TX 77057 | Oil & Gas Operator | Mar 2008 |
| 5206 | Hurst Oil & Gas, Inc. | Hillsboro, TX 76645 | Oil & Gas Operator | Nov 2024 |
| 5207 | Husfeld, Rose Marie | Bowie, TX 76230 | Oil & Gas Operator | Aug 2017 |
| 5208 | Husfeld, Walter H. | Bowie, TX 76230 | Oil & Gas Operator | Jun 2007 |
| 5209 | Huskins, Kenny | Iowa Park, TX 76367 | Oil Operator | Nov 2024 |
| 5210 | Huson Corp. | Albany, TX 76430 | Oil & Gas Operator | May 2003 |
| 5211 | Huston Minerals LP | Albany, TX 76430 | Oil & Gas Operator | Nov 2024 |
| 5212 | Huston Oil | Woodson, TX 76491 | Oil & Gas Operator | Oct 2010 |
| 5213 | HW Operating, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Nov 2024 |
| 5214 | HWH Production, LLC | Muenster, TX 76252 | Oil Operator | Nov 2024 |
| 5215 | Hy-Tech, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Feb 2017 |
| 5216 | Hyalite Energy Corporation | Pampa, TX 79066 | Oil & Gas Operator | Jun 2024 |
| 5217 | Hybrid Operating, Incorporated | Carlsbad, CA 92009 | Oil & Gas Operator | Nov 2024 |
| 5218 | Hydroc Oil Company | Borger, TX 79007 | Oil & Gas Operator | May 2012 |
| 5219 | Hydrocarbon Horizons, Inc. | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Jun 2023 |
| 5220 | Hydrocarbon Lease Management LTD | Addison, TX 75001 | Oil & Gas Operator | Jul 2002 |
| 5221 | Hydrocarbon Management, Inc. | San Antonio, TX 78216 | Oil & Gas Operator | Dec 1996 |
| 5222 | Hydrocarbon Operating, Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Nov 2024 |
| 5223 | Hydrogeo Energy, LLC | Houston, TX 77074 | Oil Operator | Nov 2024 |
| 5224 | Hydrogeo, L.L.C. | Houston, TX 77074 | Oil & Gas Operator | Nov 2024 |
| 5225 | Hyer,Na & CJ Aldenhoven Trusts | Lipan, TX 76462 | Gas Operator | Oct 2017 |
| 5226 | Hyperion Energy LP | Dallas, TX 75206 | Oil & Gas Operator | May 2014 |
| 5227 | Hyperion Oil & Gas LLC | Dallas, TX 75251 | Oil & Gas Operator | Nov 2024 |
| 5228 | Hyquest Energy, Inc. | Midland, TX 79710 | Oil & Gas Operator | Mar 2015 |
| 5229 | I & L Development Co. | Dallas, TX 75219 | Oil & Gas Operator | Mar 1996 |
| 5230 | I.T. Corporation | Arlington, TX 76016 | Oil & Gas Operator | Nov 2024 |
| 5231 | Ibc Petroleum, Inc. | San Antonio, TX 78258 | Oil & Gas Operator | Nov 2024 |
| 5232 | Ibex Resources Operating LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2007 |
| 5233 | Ibex Resources, LLC | Austin, TX 78751 | Oil & Gas Operator | Jul 1999 |
| 5234 | Ica Energy Operating, L.L.C. | Odessa, TX 79760 | Oil & Gas Operator | Nov 2024 |
| 5235 | Icarus Operating Corporation | Spring, TX 77393 | Oil & Gas Operator | Nov 2024 |
| 5236 | Ice Brothers, Inc. | Monahans, TX 79756 | Oil & Gas Operator | Jul 2024 |
| 5237 | Ice Well Services, Inc. | Abilene, TX 79603 | Oil & Gas Operator | Nov 2024 |
| 5238 | Ickert Enterprises | Olney, TX 76374 | Oil & Gas Operator | Nov 2024 |
| 5239 | Ickert, A. F. Jr. | Olney, TX 76374 | Oil & Gas Operator | Apr 1998 |
| 5240 | Ics Energy LLC | Stamford, TX 79553 | Oil & Gas Operator | Nov 2024 |
| 5241 | Idaho Oil Co., Inc. | San Antonio, TX 78212 | Oil & Gas Operator | Mar 2008 |
| 5242 | Idgas, Inc. | Austin, TX 78746 | Oil & Gas Operator | Oct 1995 |
| 5243 | Ijs Oil | Saint Jo, TX 76265 | Oil & Gas Operator | Nov 2024 |
| 5244 | Ikard, Alan | Electra, TX 76360 | Oil & Gas Operator | Nov 2024 |
| 5245 | Ike Operating, LLC | Houston, TX 77010 | Oil & Gas Operator | Nov 2024 |
| 5246 | Imagery Exploration, Inc. | Dallas, TX 75380 | Oil & Gas Operator | Nov 2024 |
| 5247 | Impact Exploration Company | Oklahoma City, OK 73118 | Oil & Gas Operator | May 1998 |
| 5248 | Imperial Gas Resources LLC | Austin, TX 78701 | Oil & Gas Operator | Nov 2024 |
| 5249 | Imperial Oil Company | Houston, TX 77073 | Oil & Gas Operator | Oct 2004 |
| 5250 | Imperial Operating Co., L.L.C. | Midland, TX 79701 | Oil Operator | Sep 2023 |
| 5251 | Impetro Operating LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2020 |
| 5252 | Ina Street Operations, Inc. | Skellytown, TX 79080 | Oil & Gas Operator | Nov 2012 |
| 5253 | Inca Oil Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | May 2009 |
| 5254 | Incendium Resources LLC | Argyle, TX 76226 | Oil & Gas Operator | Nov 2024 |
| 5255 | Incline Energy | Midland, TX 79710 | Oil & Gas Operator | Nov 2024 |
| 5256 | Independence Resources MGMT, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Mar 2021 |
| 5257 | Indexgeo & Associates, Inc. | Houston, TX 77002 | Oil & Gas Operator | Apr 2009 |
| 5258 | Indian Exploration, Inc. | Lafayette, LA 70505 | Oil & Gas Operator | Nov 2024 |
| 5259 | Indian Oil Company | Gainesville, TX 76241 | Oil & Gas Operator | Nov 2024 |
| 5260 | Indian Oil LTD. | Whitsett, TX 78075 | Oil & Gas Operator | Nov 2024 |
| 5261 | Indigo Minerals LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2022 |
| 5262 | Indigo Resources LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2019 |
| 5263 | Indy Oil, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2004 |
| 5264 | Ineos USA Oil & Gas LLC | Denver, CO 80202 | Oil & Gas Operator | Nov 2024 |
| 5265 | Inexco Oil Company | Houston, TX 77210 | Oil & Gas Operator | Mar 2013 |
| 5266 | Infinity Hydrocarbons LLC | Houston, TX 77079 | Oil & Gas Operator | Aug 2022 |
| 5267 | Infinity Oil & Gas Inc | Nowata, OK 74048 | Oil Operator | Jun 1993 |
| 5268 | Infinity Oil & Gas Of TX, Inc. | Overland Park, KS 66210 | Oil & Gas Operator | Nov 2024 |
| 5269 | Ingram, J. Oil & Gas, Inc. | Plano, TX 75074 | Oil & Gas Operator | Nov 2024 |
| 5270 | Initial Energy Services, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Nov 2024 |
| 5271 | Inject Technologies Inc. | Andrews, TX 79714 | Oil Operator | Nov 2024 |
| 5272 | Inland Gas Corp. | Houston, TX 77036 | Oil Operator | Dec 2011 |
| 5273 | Inland Minerals Management, Inc. | Austin, TX 78701 | Oil & Gas Operator | Nov 2024 |
| 5274 | Inland Ocean, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Nov 2024 |
| 5275 | Inland Oil And Gas | Nacogdoches, TX 75961 | Oil & Gas Operator | Dec 1997 |
| 5276 | Innoverse Production, LLC | Gainesville, TX 76240 | Oil & Gas Operator | Nov 2024 |
| 5277 | Inpex Eagle Ford, LLC | San Antonio, TX 78216 | Oil & Gas Operator | Dec 2022 |
| 5278 | Inspire Oil And Gas Inc. | Katy, TX 77449 | Oil & Gas Operator | Nov 2024 |
| 5279 | Integras Operating, LLC | Irving, TX 75062 | Oil & Gas Operator | Nov 2024 |
| 5280 | Integrated Operating Corporation | Dallas, TX 75243 | Oil & Gas Operator | Nov 2024 |
| 5281 | Intercity Management Corp. | Corpus Chrsti, TX 78412 | Oil & Gas Operator | Nov 2024 |
| 5282 | Intercoast Oil And Gas | Tulsa, OK 74136 | Oil & Gas Operator | Mar 1997 |
| 5283 | Intercoast Oil And Gas Company | Tulsa, OK 74136 | Oil & Gas Operator | Jun 1997 |
| 5284 | Intercoastal Energy, Inc. | Houston, TX 77055 | Oil & Gas Operator | Aug 2003 |
| 5285 | Intergrated Petroleum Corp. | Abilene, TX 79602 | Oil & Gas Operator | Nov 2024 |
| 5286 | Interior Oil Corporation | Derby, KS 67037 | Oil & Gas Operator | Jan 2023 |
| 5287 | International Basic Res., Inc. | Abilene, TX 79604 | Oil & Gas Operator | May 1996 |
| 5288 | International Oil&Gas Consultant | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 5289 | International Ventures, Inc. | Pogasa Springs, CO 81147 | Oil Operator | Jul 1996 |
| 5290 | International Western Oil Corp | Weatherford, TX 76086 | Oil & Gas Operator | Nov 2024 |
| 5291 | Interstate Explorations LLC | Houston, TX 77010 | Oil & Gas Operator | Nov 2024 |
| 5292 | Interstate Production Company, Inc. | Buckhannon, WV 26201-0000 | Oil & Gas Operator | Dec 2021 |
| 5293 | Invoil, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Nov 2024 |
| 5294 | Ip Petroleum Company, Inc. | Houston, TX 77210 | Oil & Gas Operator | Mar 2008 |
| 5295 | Ipact | Austin, TX 78734 | Oil & Gas Operator | Nov 2024 |
| 5296 | Ipr Energy Partners, L.P. | Bowie, TX 76230 | Oil & Gas Operator | Aug 2014 |
| 5297 | Ipr Energy Partners, LLC | Bowie, TX 76230 | Oil & Gas Operator | Nov 2024 |
| 5298 | Ipr USA Corp. | Irving, TX 75039 | Oil & Gas Operator | Jun 2009 |
| 5299 | Ipt Oil Company | Evansville, IN 47706 | Oil & Gas Operator | Nov 2024 |
| 5300 | Ira Oil & Gas LLC | Addison, TX 75001 | Oil & Gas Operator | Jul 2008 |