| 201 | Felderhoff Production Company | Muenster, TX 76252 | Oil & Gas Operator | Dec 2025 |
| 202 | Foag, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2022 |
| 203 | Fossil Operating, Inc. | Dallas, TX 75238 | Oil & Gas Operator | Dec 2025 |
| 204 | Four Square Production, L.L.C. | Houston, TX 77079 | Oil & Gas Operator | Aug 2004 |
| 205 | Franklin, J.W. Oil Operator | | Oil & Gas Operator | Nov 2001 |
| 206 | FX Energy Operating, LLC | Canadian, TX 79014 | Oil & Gas Operator | Dec 2025 |
| 207 | G & F Oil, Inc. | Aledo, TX 76008 | Oil & Gas Operator | Dec 2025 |
| 208 | G. S. Properties, Inc. | Arlington, TX 76013 | Oil & Gas Operator | May 1999 |
| 209 | Gannett Operating LLC | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 210 | Gardner Production, LLC | Decatur, TX 76234 | Oil & Gas Operator | Jul 2023 |
| 211 | Geonatural Resources, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Dec 2025 |
| 212 | Geostrat Inc. | Addison, TX 75001 | Oil & Gas Operator | Nov 2011 |
| 213 | Giant Energy Corp. | Dallas, TX 75230 | Oil & Gas Operator | Jul 2019 |
| 214 | Giant NRG Co., LP | Dallas, TX 75230 | Oil & Gas Operator | Dec 2025 |
| 215 | Gilliam, Frank | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 216 | Ginnings Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 2025 |
| 217 | Glahn Resources, Inc. | Arlington, TX 76003 | Oil & Gas Operator | Dec 2025 |
| 218 | Global Drilling, LLC | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 219 | Global XRC Corp | Pittsburg, TX 75686 | Oil & Gas Operator | Dec 2025 |
| 220 | Go Oil Corp. | Jacksboro, TX 76458 | Oil & Gas Operator | Dec 2025 |
| 221 | Golden Horse Group Corp. | Houston, TX 77082 | Oil Operator | Dec 2025 |
| 222 | Graystone Operating, LLC | Fort Worth, TX 76121 | Gas Operator | Dec 2025 |
| 223 | Great American Resources Inc. | Bowie, TX 76230 | Oil & Gas Operator | Dec 2025 |
| 224 | Greenhaw, Morris R. | Desdemona, TX 76445 | Oil & Gas Operator | Dec 2025 |
| 225 | Griffin Resources LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2025 |
| 226 | Grimes, Norman W. | Canyon, TX 79015 | Oil & Gas Operator | Jul 2014 |
| 227 | GTG Operating, LLC | Tyler, TX 75713 | Oil & Gas Operator | Dec 2025 |
| 228 | H & S Production, Inc. | Dallas, TX 75252 | Oil & Gas Operator | Mar 2004 |
| 229 | H3 Operating, LLC | Springtown, TX 76082 | Oil & Gas Operator | May 2020 |
| 230 | Hale Oil & Gas Properties | Graham, TX 76450 | Oil & Gas Operator | Jul 1997 |
| 231 | Halek Energy L.L.C. | Dallas, TX 75201 | Oil & Gas Operator | Jan 2014 |
| 232 | Hanks, Christopher Glenn | Gainesville, TX 76240 | Oil & Gas Operator | Dec 2025 |
| 233 | Hardrock Operating Company, Inc. | Fort Worth, TX 76161 | Oil & Gas Operator | Dec 2025 |
| 234 | Hargis Exploration & Prod., Inc. | Weatherford, TX 76086 | Oil & Gas Operator | Jul 1996 |
| 235 | Harken Exploration Company | Houston, TX 77079 | Oil & Gas Operator | Mar 2008 |
| 236 | Harrell Operating Inc | Graham, TX 76450 | Oil & Gas Operator | Sep 2005 |
| 237 | Harrell Operating, L.L.C. | Graham, TX 76450 | Oil & Gas Operator | Jun 2008 |
| 238 | Harrell, Charles | Graham, TX 76450 | Oil & Gas Operator | Dec 2000 |
| 239 | Harwell Enterprises Inc. | Weatherford, TX 76086 | Oil & Gas Operator | Jan 2005 |
| 240 | Hat Oil & Gas, Inc. | Slaton, TX 79364 | Oil & Gas Operator | Feb 2002 |
| 241 | Hawkins, G. A. | Graham, TX 76450 | Oil & Gas Operator | Dec 2013 |
| 242 | Heart Land Petroleum Corporation | Abilene, TX 79604 | Oil & Gas Operator | Mar 2008 |
| 243 | Heflin, Bryan Exploration, Inc. | Strawn, TX 76475 | Oil & Gas Operator | Mar 2008 |
| 244 | Henderson & Erickson, Inc. | Midland, TX 79701 | Oil & Gas Operator | Dec 2025 |
| 245 | Hep Oil Company, LTD. | Gainesville, TX 76240 | Oil & Gas Operator | Mar 2012 |
| 246 | Hep Oil GP, LLC | Gainesville, TX 76241 | Oil & Gas Operator | Mar 2015 |
| 247 | Herring, Ray | Graham, TX 76450 | Oil & Gas Operator | Jul 2014 |
| 248 | Herzfeld Fabricators Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Aug 2017 |
| 249 | Hess, Jerry Operating Co. | Muenster, TX 76252 | Oil & Gas Operator | Dec 2025 |
| 250 | Hexagon Oil And Gas Inc. | Fort Worth, TX 76132 | Oil & Gas Operator | Dec 2025 |
| 251 | Hibernia Resources, LLC | Houston, TX 77027 | Oil & Gas Operator | Jun 2014 |
| 252 | Hill Operating LLC | Mineral Wells, TX 76068 | Oil & Gas Operator | Nov 2023 |
| 253 | Hill, R.M. Operating Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 254 | Hilltop Petroleum LLC | Weatherford, TX 76086 | Oil & Gas Operator | Dec 2025 |
| 255 | Hindman, E. C. Jr. Partnership | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2008 |
| 256 | Hitex Resources, LP | Houston, TX 77265 | Oil & Gas Operator | Dec 2025 |
| 257 | HMT Genesis Petroleum Corp. | Fort Worth, TX 76116 | Oil & Gas Operator | Nov 2008 |
| 258 | Hoco Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2025 |
| 259 | Hodges & Hodges Productions | Anson, TX 79501 | Oil & Gas Operator | Aug 2003 |
| 260 | Horn Energy | Eastland, TX 76448 | Oil & Gas Operator | Dec 2025 |
| 261 | Houtchens, D. D. | Gainesville, TX 76240 | Oil & Gas Operator | Dec 2025 |
| 262 | Howle Operating Account, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 1999 |
| 263 | HRB Operating Company, Inc. | Bridgeport, TX 76426 | Oil & Gas Operator | Dec 2025 |
| 264 | Huber Energy L.P. | Houston, TX 77079 | Oil & Gas Operator | Feb 2007 |
| 265 | Huber Energy Panhandle LP | Houston, TX 77079 | Oil & Gas Operator | Oct 2005 |
| 266 | Huber J M Corp | Edison, NJ 08837 | Oil & Gas Operator | Dec 2025 |
| 267 | Hunter Energy, Inc. | Hurst, TX 76053 | Oil & Gas Operator | Dec 2025 |
| 268 | I.T. Corporation | Arlington, TX 76016 | Oil & Gas Operator | Dec 2025 |
| 269 | Incendium Resources LLC | Argyle, TX 76226 | Oil & Gas Operator | Dec 2025 |
| 270 | International Oil&Gas Consultant | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 271 | International Western Oil Corp | Weatherford, TX 76086 | Oil & Gas Operator | Dec 2025 |
| 272 | Ipr Energy Partners, L.P. | Bowie, TX 76230 | Oil & Gas Operator | Aug 2014 |
| 273 | Ipr Energy Partners, LLC | Bowie, TX 76230 | Oil & Gas Operator | Dec 2025 |
| 274 | Itx Corporation | Dallas, TX 75225 | Oil & Gas Operator | Dec 2025 |
| 275 | J & J Operating | Graford, TX 76449 | Oil & Gas Operator | Dec 2025 |
| 276 | J Oil & Gas Inc. | San Angelo, TX 76906 | Oil & Gas Operator | Oct 2016 |
| 277 | J-Tec Operating, LLC | Mineral Wells, TX 76068 | Oil & Gas Operator | Dec 2025 |
| 278 | J-Tec Production, LLC | Mineral Wells, TX 76068 | Oil & Gas Operator | Dec 2025 |
| 279 | J.A.M. Production | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 280 | Jackson Energy Development, Inc. | Cedar Park, TX 78613 | Oil & Gas Operator | Dec 2025 |
| 281 | Jeff Dooley Operating, LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2025 |
| 282 | Jess Energy Company | Tyler, TX 75710 | Oil & Gas Operator | Sep 1997 |
| 283 | Jilpetco, Inc. | Fort Worth, TX 76121 | Oil & Gas Operator | Dec 2025 |
| 284 | JJB Operating Co. | Mineral Wells, TX 76068 | Oil & Gas Operator | Dec 2025 |
| 285 | Joint Resources Company | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 2025 |
| 286 | Jones Company, LTD. | Albany, TX 76430 | Oil & Gas Operator | May 1999 |
| 287 | K & M Exploration, 1973-3 LTD. | Abilene, TX 79608 | Oil & Gas Operator | Nov 1997 |
| 288 | K & S Oil & Gas Company, LLC | Kerrville, TX 78028 | Oil & Gas Operator | Dec 2025 |
| 289 | Kadane Corporation | Dallas, TX 75205 | Oil & Gas Operator | Dec 2025 |
| 290 | Karper Company, The | Graham, TX 76450 | Oil & Gas Operator | Feb 2003 |
| 291 | Karper Oil & Gas Corporation | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 292 | KC Resources Inc | Snowmass VLG., CO 81615 | Oil & Gas Operator | Oct 2025 |
| 293 | Keating Energy, Inc. | FT Washington, PA 19034 | Oil & Gas Operator | Dec 2025 |
| 294 | Kendrick Oil And Gas Company | Abilene, TX 79608 | Oil & Gas Operator | Dec 2025 |
| 295 | Kimberlin Energy Group | Dallas, TX 75235 | Oil & Gas Operator | Dec 2025 |
| 296 | Knickerbocker Land Resources | Fort Worth, TX 76116 | Oil & Gas Operator | Mar 2015 |
| 297 | Koch Exploration Company | Houston, TX 77046 | Oil & Gas Operator | Apr 2003 |
| 298 | Kokomo Energy, Inc. | Gorman, TX 76454 | Oil & Gas Operator | Dec 2025 |
| 299 | Kornye-Tillman Company | Cleburne, TX 76031 | Oil & Gas Operator | Dec 2025 |
| 300 | Kroh Operating LLC | Austin, TX 78746 | Oil & Gas Operator | Dec 2025 |