| 5201 | Hilliard Oil | Bronte, TX 76933 | Oil & Gas Operator | Mar 2008 |
| 5202 | Hilliard Oil & Gas, Inc. | New Orleans, LA 70112 | Oil & Gas Operator | May 2001 |
| 5203 | Hilliard Petroleum Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Sep 2009 |
| 5204 | Hillin Prod. Co. | Odessa, TX 79760 | Oil & Gas Operator | Apr 2002 |
| 5205 | Hillin Simon/Prime Expl., L.C. | Midland, TX 79702 | Oil & Gas Operator | Jun 2000 |
| 5206 | Hillin, T. A. | Kerrville, TX 78028 | Oil & Gas Operator | Aug 2020 |
| 5207 | Hillin-Simon Oil Company | Houston, TX 77079 | Oil & Gas Operator | Mar 2013 |
| 5208 | Hillside Oil & Gas, LLC | Midland, TX 79708 | Oil & Gas Operator | Apr 2016 |
| 5209 | Hilltex Operating Company, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Feb 2026 |
| 5210 | Hilltop Petroleum LLC | Weatherford, TX 76086 | Oil & Gas Operator | Feb 2026 |
| 5211 | Hillwood O & G Operating Co LP | Fort Worth, TX 76102 | Gas Operator | Feb 2026 |
| 5212 | Hilty Interests, Inc. | Kerrville, TX 78028 | Oil & Gas Operator | Jun 1989 |
| 5213 | Hindman, E. C. Jr. Partnership | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2008 |
| 5214 | Hinds Petroleum, LLC | Houston, TX 77263 | Oil Operator | Feb 2026 |
| 5215 | Hinds Petroleum, LP | Houston, TX 77263 | Oil Operator | Feb 2017 |
| 5216 | Hines, Ralph, Jr. | Wichita Falls, TX 76307 | Oil & Gas Operator | May 2002 |
| 5217 | Hinkle Engineering, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Nov 2016 |
| 5218 | Hinkle, Howard L. | Wichita Falls, TX 76301 | Oil & Gas Operator | Feb 2026 |
| 5219 | Hinton Production Company | MT Pleasant, TX 75455 | Oil & Gas Operator | Aug 1995 |
| 5220 | Hinton, W. B. | MT Pleasant, TX 75455 | Oil & Gas Operator | Jul 1993 |
| 5221 | Hipp Oil And Gas Inc. | Big Spring, TX 79720 | Oil & Gas Operator | Feb 2026 |
| 5222 | Hitex Resources, LP | Houston, TX 77265 | Oil & Gas Operator | Feb 2026 |
| 5223 | HK Energy Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | May 2023 |
| 5224 | HMH Operators, Inc. | Midland, TX 79701 | Oil & Gas Operator | Aug 2003 |
| 5225 | HMT Genesis Petroleum Corp. | Fort Worth, TX 76116 | Oil & Gas Operator | Nov 2008 |
| 5226 | HMT Pipeline Company, Inc. | San Angelo, TX 76904 | Oil & Gas Operator | Feb 2026 |
| 5227 | HMX Investments, Inc. | Katy, TX 77494 | Oil & Gas Operator | Nov 2025 |
| 5228 | HNG Storage Company | Houston, TX 77042 | Oil & Gas Operator | Mar 2002 |
| 5229 | Hobbs Energy Corporation | San Angelo, TX 76904 | Oil & Gas Operator | Mar 2008 |
| 5230 | Hoc Operating Co., Inc. | Houston, TX 77056 | Oil & Gas Operator | Nov 1999 |
| 5231 | Hoco Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2026 |
| 5232 | Hodgden Operating Co., Inc. | Enid, OK 73702 | Oil & Gas Operator | Dec 2025 |
| 5233 | Hodgden, Jack D. | Enid, OK 73702 | Oil & Gas Operator | Apr 2000 |
| 5234 | Hodge T F | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2007 |
| 5235 | Hodges & Hodges Productions | Anson, TX 79501 | Oil & Gas Operator | Aug 2003 |
| 5236 | Hodges & Rister | Abilene, TX 79603 | Oil & Gas Operator | Apr 2016 |
| 5237 | Hodges, James Aaron | Fort Worth, TX 76179 | Oil & Gas Operator | Feb 2026 |
| 5238 | Hodges, Thomas | Alvord, TX 76225 | Oil & Gas Operator | Oct 2002 |
| 5239 | Hodges, Tommie Ann | Alvord, TX 76225 | Oil & Gas Operator | Jun 2018 |
| 5240 | Hoell Operating, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 5241 | Hoelscher, Weldon | San Angelo, TX 76904 | Oil & Gas Operator | Aug 2003 |
| 5242 | Hoermann, S. E. | Seguin, TX 78155 | Oil & Gas Operator | Feb 2026 |
| 5243 | Hofco, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Feb 2026 |
| 5244 | Hoffmann Oil Company | Eastland, TX 76448 | Oil & Gas Operator | Feb 2026 |
| 5245 | Hog Operating LLC | Dallas, TX 75201 | Oil & Gas Operator | Feb 2026 |
| 5246 | Hogan, Wayne Oil Co. | Albany, TX 76430 | Oil & Gas Operator | Jun 2006 |
| 5247 | Hoggard, Kenneth | Loving, TX 76460 | Oil & Gas Operator | Feb 2026 |
| 5248 | Holbein & Wright Resources Inc. | Bandera, TX 78003 | Oil & Gas Operator | Feb 2026 |
| 5249 | Holco Oil & Gas | Borger, TX 79008 | Oil & Gas Operator | Feb 2026 |
| 5250 | Holcomb Company, The | Freer, TX 78357 | Oil & Gas Operator | Aug 1996 |
| 5251 | Holcomb Energy Corp. | Encinal, TX 78019 | Oil & Gas Operator | Dec 2013 |
| 5252 | Holcomb Enterprises | Clyde, TX 79510 | Oil & Gas Operator | Aug 2003 |
| 5253 | Holden Energy Corporation | Ardmore, OK 73401 | Oil & Gas Operator | Mar 2015 |
| 5254 | Holden Oil & Gas | Abilene, TX 79608 | Oil & Gas Operator | Dec 2025 |
| 5255 | Holden-Brooke Oil & Gas Co. | George West, TX 78022 | Oil & Gas Operator | Sep 2005 |
| 5256 | Holditch, S.A. & Assoc. Inc. | College Sta, TX 77840 | Oil & Gas Operator | Apr 1994 |
| 5257 | Holifield Oil Company | Giddings, TX 78942 | Oil & Gas Operator | Mar 2009 |
| 5258 | Holland Oil & Gas | Brookesmith, TX 76827 | Oil & Gas Operator | Dec 2010 |
| 5259 | Holland Oil Co. | Petrolia, TX 76377 | Oil Operator | Aug 2010 |
| 5260 | Holland, W. M. | Petrolia, TX 76377 | Oil & Gas Operator | Jul 2009 |
| 5261 | Hollandsworth & Travis | Longview, TX 75606 | Oil & Gas Operator | Mar 2001 |
| 5262 | Holler Oil Co. | San Angelo, TX 76906 | Oil & Gas Operator | Aug 2003 |
| 5263 | Holley Oil Company, LLC | Chappell Hill, TX 77426 | Oil & Gas Operator | Feb 2026 |
| 5264 | Holley Operating, L. L. C. | Abilene, TX 79601 | Oil Operator | Jul 2025 |
| 5265 | Holli-Tex Supply Co. | Holliday, TX 76366 | Oil & Gas Operator | May 2018 |
| 5266 | Holliday CSG Corp. | Holliday, TX 76366 | Oil & Gas Operator | Feb 2026 |
| 5267 | Holliday Drilling, Inc. | Stephenville, TX 76401 | Oil & Gas Operator | Dec 2020 |
| 5268 | Hollimon Oil Corporation | Castroville, TX 78009 | Oil & Gas Operator | Nov 2016 |
| 5269 | Holloway Oil Company | Austin, TX 78764 | Oil & Gas Operator | Feb 2004 |
| 5270 | Hollub Production Company | Seguin, TX 78156 | Oil & Gas Operator | Jul 2000 |
| 5271 | Hollub, Lambert Drilling Company | Seguin, TX 78155 | Oil & Gas Operator | Feb 2026 |
| 5272 | Holly Petroleum, Inc. | Midland, TX 79702 | Oil & Gas Operator | Nov 2008 |
| 5273 | Holmac Oil Company | Hobbs, NM 88240 | Oil & Gas Operator | May 1996 |
| 5274 | Holmes Exploration, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Jun 2015 |
| 5275 | Holson Well Service | Albany, TX 76430 | Oil & Gas Operator | Feb 2026 |
| 5276 | Holt Brothers | Gruver, TX 79040 | Gas Operator | Feb 2026 |
| 5277 | Holt Oil And Cattle LLC | Iola, TX 77861 | Oil & Gas Operator | Feb 2026 |
| 5278 | Hombre Oil Co., LTD. | Tyler, TX 75713 | Oil & Gas Operator | Apr 2021 |
| 5279 | Home Petroleum Corp | Victoria, TX 77902 | Oil & Gas Operator | Feb 2026 |
| 5280 | Home-Stake Oil & Gas Company | Plano, TX 75093 | Oil & Gas Operator | Sep 2025 |
| 5281 | Home-Stake Royalty Corp., The | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2014 |
| 5282 | Homeplace Oil And Gas | Caldwell, TX 77836 | Oil & Gas Operator | Feb 2021 |
| 5283 | Hominy Consulting, LLC | Canadian, TX 79014 | Oil & Gas Operator | Feb 2026 |
| 5284 | Hondo Drilling Company | Midland, TX 79702 | Oil & Gas Operator | Nov 1996 |
| 5285 | Honeck Oil Company | Austin, TX 78716 | Oil & Gas Operator | Mar 2008 |
| 5286 | Honeck Oil Company, LP | Austin, TX 78716 | Oil & Gas Operator | Dec 2010 |
| 5287 | Hood, J. F. | Holliday, TX 76366 | Oil & Gas Operator | Apr 2010 |
| 5288 | Hood, J. Frank, Jr. | Arlington, TX 76006 | Oil & Gas Operator | Feb 2026 |
| 5289 | Hood, Joe B. | Wichita Falls, TX 76301 | Oil & Gas Operator | Mar 2008 |
| 5290 | Hooks & Hooks | Abilene, TX 79608 | Oil & Gas Operator | Feb 1999 |
| 5291 | Hooper & Sons Investments Co.Inc | Tenaha, TX 75974 | Gas Operator | Nov 1997 |
| 5292 | Hooper, Charles G | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Aug 1997 |
| 5293 | Hooper, DR. Oil & Royalty Co. | Conroe, TX 77304 | Oil & Gas Operator | Sep 1999 |
| 5294 | Hootkins, Seymour G. | Archer City, TX 76351 | Oil & Gas Operator | Apr 1997 |
| 5295 | Hoover Petroleum Company, LLC | Midland, TX 79701 | Oil Operator | Feb 2026 |
| 5296 | Hopco Operating, Inc. | Stafford, TX 77497 | Oil & Gas Operator | Dec 2016 |
| 5297 | Hope Energy, L.L.C. | Snyder, TX 79549 | Oil & Gas Operator | Feb 2026 |
| 5298 | Hope Production, Inc. | Edinburg, TX 78540 | Oil & Gas Operator | Jan 2000 |
| 5299 | Hopewell Operating, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Feb 2026 |
| 5300 | Hopkins Engineering, Inc. | Houston, TX 77046 | Oil & Gas Operator | Sep 1996 |