| 5301 | Hulsey Oil Company | Dallas, TX 75205 | Oil & Gas Operator | Aug 1999 |
| 5302 | Humak Processors, Inc. | Tyler, TX 75710 | Oil & Gas Operator | Aug 2005 |
| 5303 | Humber Oil Company | Albany, TX 76430 | Oil & Gas Operator | Dec 2025 |
| 5304 | Humble Oil & Refining Co. | Houston, TX 77252 | Oil & Gas Operator | Jan 2000 |
| 5305 | Humedel Land & Minerals, Inc. | Jourdanton, TX 78026 | Oil & Gas Operator | Mar 2008 |
| 5306 | Humphrey, Thos.D. Oil Prop.,Inc. | Gainesville, TX 76241 | Oil & Gas Operator | Aug 1999 |
| 5307 | Humphrey-Bashford Oil, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Sep 2010 |
| 5308 | Hunt Cimarron LTD. Partnership | Roswell, NM 88202 | Oil & Gas Operator | Dec 2025 |
| 5309 | Hunt Industries, LTD. | Dallas, TX 75201 | Oil & Gas Operator | Nov 2000 |
| 5310 | Hunt Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Dec 2025 |
| 5311 | Hunt Operating, LLC | Jacksboro, TX 76458 | Oil & Gas Operator | Dec 2025 |
| 5312 | Hunt Petroleum (Aec), Inc. | Dallas, TX 75201 | Oil & Gas Operator | Nov 2008 |
| 5313 | Hunt Petroleum Corp. | Dallas, TX 75201 | Oil & Gas Operator | Nov 2008 |
| 5314 | Hunt, Hassie Exploration Company | Dallas, TX 75201 | Oil & Gas Operator | Nov 2008 |
| 5315 | Hunt, WM. Herbert, Trust Est. | Dallas, TX 75201 | Oil & Gas Operator | Sep 1998 |
| 5316 | Hunter & Hedrick Production, Inc | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Dec 1995 |
| 5317 | Hunter & McDonald | Wichita Falls, TX 76309 | Oil & Gas Operator | Jul 2001 |
| 5318 | Hunter Brothers | Wichita Falls, TX 76302 | Oil & Gas Operator | Jul 2007 |
| 5319 | Hunter Energy, Inc. | Hurst, TX 76053 | Oil & Gas Operator | Dec 2025 |
| 5320 | Hunter Oil & Gas Co. | Bangs, TX 76823 | Oil & Gas Operator | Dec 2025 |
| 5321 | Hunter Oil Corporation | Gruver, TX 79040 | Gas Operator | Dec 2025 |
| 5322 | Hunter Petroleum Inc. | Alice, TX 78333 | Oil & Gas Operator | May 2014 |
| 5323 | Hunter, Rocquelle | Coleman, TX 76834 | Oil Operator | Dec 2025 |
| 5324 | Hunters Creek Oil & Gas | Houston, TX 77042 | Oil & Gas Operator | Dec 2025 |
| 5325 | Huntington Energy LLC | Nichols Hill, OK 73116 | Oil & Gas Operator | Dec 2025 |
| 5326 | Huntington Resources Inc | Tulsa, OK 74103 | Oil & Gas Operator | Oct 2006 |
| 5327 | Huntland Properties, LTD. | Santa Anna, TX 76878 | Oil & Gas Operator | Dec 2025 |
| 5328 | Huntwood Resources, LLC | Huntsville, TX 77340 | Oil Operator | Dec 2025 |
| 5329 | Hurd Ent.LTD/U.S.Enercorp,LLC | San Antonio, TX 78209 | Oil & Gas Operator | Aug 2002 |
| 5330 | Hurd Enterprises, LTD. | San Antonio, TX 78209 | Oil & Gas Operator | Dec 2025 |
| 5331 | Hurley Petroleum Corporation | Baton Rouge, LA 70821 | Oil & Gas Operator | Feb 2000 |
| 5332 | Hurricane Oil And Gas Co., Inc. | Houston, TX 77057 | Oil & Gas Operator | Mar 2008 |
| 5333 | Hurst Oil & Gas, Inc. | Hillsboro, TX 76645 | Oil & Gas Operator | Dec 2024 |
| 5334 | Husfeld, Rose Marie | Bowie, TX 76230 | Oil & Gas Operator | Aug 2017 |
| 5335 | Husfeld, Walter H. | Bowie, TX 76230 | Oil & Gas Operator | Jun 2007 |
| 5336 | Huson Corp. | Albany, TX 76430 | Oil & Gas Operator | May 2003 |
| 5337 | Huston Minerals LP | Albany, TX 76430 | Oil & Gas Operator | Dec 2025 |
| 5338 | Huston Oil | Woodson, TX 76491 | Oil & Gas Operator | Oct 2010 |
| 5339 | HW Operating, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2025 |
| 5340 | HWH Production, LLC | Muenster, TX 76252 | Oil Operator | Dec 2025 |
| 5341 | Hy-Tech, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Feb 2017 |
| 5342 | Hyalite Energy Corporation | Pampa, TX 79066 | Oil & Gas Operator | May 2025 |
| 5343 | Hybrid Operating, Incorporated | Carlsbad, CA 92009 | Oil & Gas Operator | Dec 2025 |
| 5344 | Hydroc Oil Company | Borger, TX 79007 | Oil & Gas Operator | May 2012 |
| 5345 | Hydrocarbon Horizons, Inc. | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Jun 2023 |
| 5346 | Hydrocarbon Lease Management LTD | Addison, TX 75001 | Oil & Gas Operator | Jul 2002 |
| 5347 | Hydrocarbon Management, Inc. | San Antonio, TX 78216 | Oil & Gas Operator | Dec 1996 |
| 5348 | Hydrocarbon Operating, Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Dec 2025 |
| 5349 | Hydrogeo, L.L.C. | Houston, TX 77074 | Oil & Gas Operator | Dec 2025 |
| 5350 | Hyer,Na & CJ Aldenhoven Trusts | Lipan, TX 76462 | Gas Operator | Oct 2017 |
| 5351 | Hyperion Energy LP | Dallas, TX 75206 | Oil & Gas Operator | May 2014 |
| 5352 | Hyperion Oil & Gas LLC | Dallas, TX 75251 | Oil & Gas Operator | Dec 2025 |
| 5353 | Hyquest Energy, Inc. | Midland, TX 79710 | Oil & Gas Operator | Mar 2015 |
| 5354 | I & L Development Co. | Dallas, TX 75219 | Oil & Gas Operator | Mar 1996 |
| 5355 | I.T. Corporation | Arlington, TX 76016 | Oil & Gas Operator | Dec 2025 |
| 5356 | I.T. Properties | Arlington, TX 76006 | Oil & Gas Operator | Dec 2025 |
| 5357 | Ibc Petroleum, Inc. | San Antonio, TX 78258 | Oil & Gas Operator | Dec 2025 |
| 5358 | Ibex Resources I, L.P. | Midland, TX 79701 | Oil & Gas Operator | Jul 1999 |
| 5359 | Ibex Resources Operating LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2007 |
| 5360 | Ibex Resources, LLC | Austin, TX 78751 | Oil & Gas Operator | Jul 1999 |
| 5361 | Ica Energy Operating, L.L.C. | Odessa, TX 79760 | Oil & Gas Operator | Dec 2025 |
| 5362 | Icarus Operating Corporation | Spring, TX 77393 | Oil & Gas Operator | Dec 2025 |
| 5363 | Ice Brothers, Inc. | Monahans, TX 79756 | Oil & Gas Operator | Jul 2024 |
| 5364 | Ice Well Services, Inc. | Abilene, TX 79603 | Oil & Gas Operator | Dec 2025 |
| 5365 | Ickert Enterprises | Olney, TX 76374 | Oil & Gas Operator | Dec 2025 |
| 5366 | Ickert, A. F. Jr. | Olney, TX 76374 | Oil & Gas Operator | Apr 1998 |
| 5367 | Ics Energy LLC | Stamford, TX 79553 | Oil & Gas Operator | Dec 2025 |
| 5368 | Idaho Oil Co., Inc. | San Antonio, TX 78212 | Oil & Gas Operator | Mar 2008 |
| 5369 | Idgas, Inc. | Austin, TX 78746 | Oil & Gas Operator | Oct 1995 |
| 5370 | Ijs Oil | Saint Jo, TX 76265 | Oil & Gas Operator | Dec 2025 |
| 5371 | Ikard, Alan | Electra, TX 76360 | Oil & Gas Operator | Dec 2025 |
| 5372 | Ike Operating, LLC | Houston, TX 77010 | Oil & Gas Operator | Dec 2025 |
| 5373 | Imagery Exploration, Inc. | Dallas, TX 75380 | Oil & Gas Operator | Dec 2025 |
| 5374 | Impact Exploration Company | Oklahoma City, OK 73118 | Oil & Gas Operator | May 1998 |
| 5375 | Imperial Gas Resources LLC | Austin, TX 78701 | Oil & Gas Operator | Dec 2025 |
| 5376 | Imperial Oil Company | Houston, TX 77073 | Oil & Gas Operator | Oct 2004 |
| 5377 | Imperial Operating Co., L.L.C. | Midland, TX 79701 | Oil Operator | Sep 2023 |
| 5378 | Impetro Operating LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2020 |
| 5379 | Ina Street Operations, Inc. | Skellytown, TX 79080 | Oil & Gas Operator | Nov 2012 |
| 5380 | Inca Oil Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | May 2009 |
| 5381 | Incendium Resources LLC | Argyle, TX 76226 | Oil & Gas Operator | Dec 2025 |
| 5382 | Incline Energy | Midland, TX 79710 | Oil & Gas Operator | Dec 2025 |
| 5383 | Independence Resources MGMT, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Mar 2021 |
| 5384 | Indexgeo & Associates, Inc. | Houston, TX 77002 | Oil & Gas Operator | Apr 2009 |
| 5385 | Indian Exploration, Inc. | Lafayette, LA 70505 | Oil & Gas Operator | Dec 2025 |
| 5386 | Indian Oil Company | Gainesville, TX 76241 | Oil & Gas Operator | Dec 2025 |
| 5387 | Indian Oil LTD. | Whitsett, TX 78075 | Oil & Gas Operator | Dec 2025 |
| 5388 | Indigo Minerals LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2022 |
| 5389 | Indigo Resources LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2019 |
| 5390 | Indy Oil, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2004 |
| 5391 | Ineos USA Oil & Gas LLC | Denver, CO 80202 | Oil & Gas Operator | Dec 2025 |
| 5392 | Inexco Oil Company | Houston, TX 77210 | Oil & Gas Operator | Mar 2013 |
| 5393 | Infinity Oil & Gas Inc | Nowata, OK 74048 | Oil Operator | Jun 1993 |
| 5394 | Infinity Oil & Gas Of TX, Inc. | Overland Park, KS 66210 | Oil & Gas Operator | Dec 2025 |
| 5395 | Ingram, J. Oil & Gas, Inc. | Plano, TX 75074 | Oil & Gas Operator | Dec 2025 |
| 5396 | Initial Energy Services, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Dec 2025 |
| 5397 | Inject Technologies Inc. | Andrews, TX 79714 | Oil Operator | Dec 2025 |
| 5398 | Inland Gas Corp. | Houston, TX 77036 | Oil Operator | Dec 2011 |
| 5399 | Inland Minerals Management, Inc. | Austin, TX 78701 | Oil & Gas Operator | Dec 2025 |
| 5400 | Inland Ocean, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Dec 2025 |