| 201 | First American Operating Co. | Breckenridge, TX 76424 | Oil & Gas Operator | Aug 2006 |
| 202 | Fiscus Drilling Co., Inc. | Clyde, TX 79510 | Oil & Gas Operator | Apr 2015 |
| 203 | Fisher, Jack Inc. | Abilene, TX 79603 | Oil & Gas Operator | Sep 2001 |
| 204 | Fortson Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2020 |
| 205 | Fossil Operating, Inc. | Dallas, TX 75238 | Oil & Gas Operator | Dec 2025 |
| 206 | Foster, Randy | New Braunfels, TX 78132 | Oil & Gas Operator | Feb 2021 |
| 207 | Four C Oil & Gas Corp. | Dallas, TX 75206 | Oil & Gas Operator | Jan 2024 |
| 208 | Franklin, Jack | Arlington, TX 76013 | Oil & Gas Operator | Nov 2007 |
| 209 | Freeman, Kathleen Inc. | Midland, TX 79705 | Oil & Gas Operator | Mar 1996 |
| 210 | Frontier Operating Corporation | Albany, TX 76430 | Oil & Gas Operator | Dec 2025 |
| 211 | FTC Consulting, LLC | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 212 | Fultz Oil Company | Fort Worth, TX 76121 | Oil & Gas Operator | Dec 1995 |
| 213 | Furry Oil & Gas, Inc. | Bangs, TX 76823 | Oil & Gas Operator | Dec 2025 |
| 214 | Furry Operating Account | Brownwood, TX 76804 | Oil & Gas Operator | Aug 2003 |
| 215 | Furry Producing Company | Brownwood, TX 76801 | Oil & Gas Operator | Dec 2025 |
| 216 | Gaylyn, Inc. | Comanche, TX 76442 | Oil & Gas Operator | Dec 2025 |
| 217 | Gem Oil Company | Albany, TX 76430 | Oil & Gas Operator | Sep 2002 |
| 218 | Geostrat Inc. | Addison, TX 75001 | Oil & Gas Operator | Nov 2011 |
| 219 | Geosurveys, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Dec 2025 |
| 220 | Geotrac Energy Corporation | Abilene, TX 79604 | Oil & Gas Operator | Jul 2000 |
| 221 | GGP Exploration, LTD. | Fort Worth, TX 76101 | Oil & Gas Operator | Dec 2025 |
| 222 | Giant Energy Corp. | Dallas, TX 75230 | Oil & Gas Operator | Jul 2019 |
| 223 | Gideon Operating | Coleman, TX 76834 | Oil & Gas Operator | Dec 2025 |
| 224 | Ginco Operating Co. | San Antonio, TX 78217 | Oil & Gas Operator | Dec 2025 |
| 225 | Global Drilling, LLC | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 226 | Global XRC Corp | Pittsburg, TX 75686 | Oil & Gas Operator | Dec 2025 |
| 227 | Glover, Michael C. | Albany, TX 76430 | Oil & Gas Operator | Nov 2013 |
| 228 | GNG Operating LLC | Graham, TX 76450 | Oil Operator | Dec 2025 |
| 229 | Go Oil Corp. | Jacksboro, TX 76458 | Oil & Gas Operator | Dec 2025 |
| 230 | Golden Horse Group Corp. | Houston, TX 77082 | Oil Operator | Dec 2025 |
| 231 | Goldsmith, J. Paul | Tyler, TX 75711 | Oil & Gas Operator | Feb 1997 |
| 232 | Gosa Oil Company | Albany, TX 76430 | Oil & Gas Operator | Dec 2025 |
| 233 | Grand Banks Energy Company | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 2025 |
| 234 | Gray Fox Operating Company | Tulsa, OK 74119 | Oil Operator | May 1993 |
| 235 | Grayrock Energy II, LLC | Fort Worth, TX 76101 | Oil & Gas Operator | Dec 2025 |
| 236 | Greasewood Oil Company | Midland, TX 79705 | Oil & Gas Operator | Jul 2007 |
| 237 | Greene, R. E. | Baird, TX 79504 | Oil & Gas Operator | Jun 2009 |
| 238 | Grothe Bros. | Albany, TX 76430 | Oil & Gas Operator | May 2011 |
| 239 | Grothe Bros., Inc. | Slaton, TX 79364 | Oil & Gas Operator | Dec 2025 |
| 240 | GT Productions | Euless, TX 76040 | Oil & Gas Operator | Jan 1997 |
| 241 | Guidance Oil Developers, Inc. | Abilene, TX 79601 | Oil & Gas Operator | Mar 2008 |
| 242 | H & W Marketing Company | Benbrook, TX 76126 | Oil & Gas Operator | Dec 2002 |
| 243 | H H Exploration, Inc. | Incline VLLG, NV 89451 | Gas Operator | Feb 2018 |
| 244 | H. C. Oil Co. | Weatherford, TX 76085 | Oil & Gas Operator | Dec 2025 |
| 245 | H.A.N. Operating Incorporated | Clyde, TX 79510 | Oil & Gas Operator | Aug 2016 |
| 246 | Halek Energy L.L.C. | Dallas, TX 75201 | Oil & Gas Operator | Jan 2014 |
| 247 | Hanvey, Don H. Oil Interests Inc | Cisco, TX 76437 | Oil & Gas Operator | Dec 2025 |
| 248 | Harper, Wayne | Dallas, TX 75206 | Oil & Gas Operator | Mar 2008 |
| 249 | Harvest Operating Company, Inc. | Cisco, TX 76437 | Oil & Gas Operator | Dec 1997 |
| 250 | Haskit, Kendall | Kyle, TX 78640 | Oil & Gas Operator | Dec 2025 |
| 251 | HB Oil Company | Abilene, TX 79602 | Oil & Gas Operator | Jun 2023 |
| 252 | Heart Land Petroleum Corporation | Abilene, TX 79604 | Oil & Gas Operator | Mar 2008 |
| 253 | Herd Producing Company, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Dec 2025 |
| 254 | Herod, Bill | Ranger, TX 76470 | Oil & Gas Operator | Apr 2022 |
| 255 | Herring, Ray | Graham, TX 76450 | Oil & Gas Operator | Jul 2014 |
| 256 | Hess, Jerry Operating Co. | Muenster, TX 76252 | Oil & Gas Operator | Dec 2025 |
| 257 | Hexagon Oil And Gas Inc. | Fort Worth, TX 76132 | Oil & Gas Operator | Dec 2025 |
| 258 | HGN Operating Company, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Jul 2014 |
| 259 | HGN Operating I, LLC | Abilene, TX 79604 | Oil & Gas Operator | Dec 2025 |
| 260 | Hickory Petroleum Inc. | Abilene, TX 79604 | Oil & Gas Operator | Jun 2013 |
| 261 | Hillside Oil & Gas, LLC | Midland, TX 79708 | Oil & Gas Operator | Apr 2016 |
| 262 | Hofco, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Dec 2025 |
| 263 | Holden Oil & Gas | Abilene, TX 79608 | Oil & Gas Operator | Dec 2024 |
| 264 | Holson Well Service | Albany, TX 76430 | Oil & Gas Operator | Dec 2025 |
| 265 | Hooks & Hooks | Abilene, TX 79608 | Oil & Gas Operator | Feb 1999 |
| 266 | Horizon Well Services, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Dec 2025 |
| 267 | Horn Energy | Eastland, TX 76448 | Oil & Gas Operator | Dec 2025 |
| 268 | Hovgard & Fitzgerald | Abilene, TX 79608 | Oil & Gas Operator | Mar 1996 |
| 269 | Howle Operating Account, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 1999 |
| 270 | Howle, A.G. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2011 |
| 271 | Hudson Brothers Mining Co., Inc. | Cisco, TX 76437 | Oil & Gas Operator | Jun 1994 |
| 272 | Hughes, Bob Oil Company | San Angelo, TX 76901 | Oil & Gas Operator | Jul 2011 |
| 273 | Humphrey-Bashford Oil, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Sep 2010 |
| 274 | Hunt Operating, LLC | Jacksboro, TX 76458 | Oil & Gas Operator | Dec 2025 |
| 275 | Hunter Oil & Gas Co. | Bangs, TX 76823 | Oil & Gas Operator | Dec 2025 |
| 276 | Ice Well Services, Inc. | Abilene, TX 79603 | Oil & Gas Operator | Dec 2025 |
| 277 | Inland Ocean, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Dec 2025 |
| 278 | Integras Operating, LLC | Irving, TX 75062 | Oil & Gas Operator | Dec 2025 |
| 279 | Interstate Explorations LLC | Houston, TX 77010 | Oil & Gas Operator | Dec 2025 |
| 280 | Ipact | Austin, TX 78734 | Oil & Gas Operator | Dec 2025 |
| 281 | Iron Bell Operating, LLC | Lubbock, TX 79423 | Oil & Gas Operator | Dec 2025 |
| 282 | Iron Horse Oil & Gas, Inc. | Albany, TX 76430 | Oil & Gas Operator | Dec 2025 |
| 283 | Isbell, Bob G. Operating | Cisco, TX 76437 | Oil & Gas Operator | Mar 2015 |
| 284 | J & F Oil Co. | Olney, TX 76374 | Oil & Gas Operator | Dec 2025 |
| 285 | J & M Co Inc | Abilene, TX 79601 | Oil & Gas Operator | Jan 2016 |
| 286 | J & TG, LLC | Albany, TX 76430 | Oil & Gas Operator | Dec 2025 |
| 287 | J & W Oil Co.-W. F. | Eastland, TX 76448 | Oil & Gas Operator | Dec 2025 |
| 288 | J R Investments | Cisco, TX 76437 | Oil & Gas Operator | Aug 2003 |
| 289 | J.H. Oil, Inc. (A) | Tuscola, TX 79562 | Oil & Gas Operator | Dec 2004 |
| 290 | Jack Oil Company | Baird, TX 79504 | Oil & Gas Operator | Apr 1994 |
| 291 | JD Production Co | Waco, TX 76702 | Oil & Gas Operator | Dec 2009 |
| 292 | Jenn Oil | Albany, TX 76430 | Oil & Gas Operator | Dec 2025 |
| 293 | Jobe, B. M. | El Paso, TX 79930 | Oil & Gas Operator | Dec 2025 |
| 294 | Johnson, William D. | Fort Worth, TX 76116 | Oil & Gas Operator | Mar 2008 |
| 295 | Joint Resources Company | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 2025 |
| 296 | Jones Company, LTD. | Albany, TX 76430 | Oil & Gas Operator | May 1999 |
| 297 | Jones, Jansen M. | Albany, TX 76430 | Oil & Gas Operator | Jul 2009 |
| 298 | JRJ Oil & Gas LLC | Grapevine, TX 76099 | Oil & Gas Operator | Dec 2025 |
| 299 | Jubilee Oil Corporation | Denison, TX 75020 | Oil Operator | Oct 2012 |
| 300 | K & W Vanpelt Company | Portage, OH 43451 | Oil & Gas Operator | Dec 2025 |