| 201 | G E Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | May 2020 |
| 202 | G. A. Hawkins Operating, LLC | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 203 | Gala Resources, LTD. | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 204 | Genie Corporation | Abilene, TX 79604 | Oil & Gas Operator | Mar 2008 |
| 205 | Geonatural Resources, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Dec 2025 |
| 206 | Gillespie Operating LLC | Abilene, TX 79608 | Oil & Gas Operator | Dec 2025 |
| 207 | Gilmore, Leo Oil, Inc. | Holliday, TX 76366 | Oil & Gas Operator | Dec 2025 |
| 208 | Glahn Resources, Inc. | Arlington, TX 76003 | Oil & Gas Operator | Dec 2025 |
| 209 | Global Drilling, LLC | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 210 | Golden Resources Corporation | Dallas, TX 75238 | Oil & Gas Operator | Dec 1998 |
| 211 | Goopco, Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 212 | Gosa Oil Company | Albany, TX 76430 | Oil & Gas Operator | Dec 2025 |
| 213 | Grace 7 Operating LLC | Argyle, TX 76226 | Oil Operator | Apr 2022 |
| 214 | Grace 7 Properties, LTD. | Argyle, TX 76226 | Oil & Gas Operator | Dec 2025 |
| 215 | Gramrich Oil & Gas Corporation | Coppell, TX 75019 | Oil & Gas Operator | Oct 2012 |
| 216 | Gray Oil & Gas Inc. | Abilene, TX 79606 | Oil & Gas Operator | Oct 2013 |
| 217 | Greco Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 218 | Griffin Resources | Breckenridge, TX 76424 | Oil & Gas Operator | Oct 2003 |
| 219 | Grimes, Norman W. | Canyon, TX 79015 | Oil & Gas Operator | Jul 2014 |
| 220 | Grover-McKinney Oil Company | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 221 | GT Productions | Euless, TX 76040 | Oil & Gas Operator | Jan 1997 |
| 222 | Guinn Investments, Inc. | Graham, TX 76450 | Oil & Gas Operator | Oct 2018 |
| 223 | Gunn Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2025 |
| 224 | H & H Production | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2015 |
| 225 | H & S Production, Inc. | Dallas, TX 75252 | Oil & Gas Operator | Mar 2004 |
| 226 | H P S Investments | Graham, TX 76450 | Oil & Gas Operator | Mar 2008 |
| 227 | H.L.S. Energy Co., Inc. | Uvalde, TX 78801 | Oil & Gas Operator | Aug 2003 |
| 228 | Hadaway Consult And Engineer,LLC | Canadian, TX 79014 | Oil & Gas Operator | Dec 2025 |
| 229 | Haggard, E. A. | Graham, TX 76450 | Oil & Gas Operator | Apr 2001 |
| 230 | Hale Oil & Gas Properties | Graham, TX 76450 | Oil & Gas Operator | Jul 1997 |
| 231 | Hamilton, Eddy R. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2025 |
| 232 | Hampton, Jno. W. & Son | Wichita Falls, TX 76302 | Oil & Gas Operator | Nov 1998 |
| 233 | Harding Company | Dallas, TX 75244 | Oil & Gas Operator | Jan 2015 |
| 234 | Harken Exploration Company | Houston, TX 77079 | Oil & Gas Operator | Mar 2008 |
| 235 | Harper, Clint | Woodson, TX 76491 | Oil & Gas Operator | Dec 2025 |
| 236 | Harper, William E. | Woodson, TX 76491 | Oil & Gas Operator | Jul 2016 |
| 237 | Harrell Operating Inc | Graham, TX 76450 | Oil & Gas Operator | Sep 2005 |
| 238 | Harrell Operating, L.L.C. | Graham, TX 76450 | Oil & Gas Operator | Jun 2008 |
| 239 | Harvick Oil Co. | Albany, TX 76430 | Oil & Gas Operator | Feb 2009 |
| 240 | Harvick, George R. | Albany, TX 76430 | Oil & Gas Operator | Dec 2025 |
| 241 | Hat Oil & Gas, Inc. | Slaton, TX 79364 | Oil & Gas Operator | Feb 2002 |
| 242 | Hatcher, Ray | Burkburnett, TX 76354 | Oil & Gas Operator | Jun 2002 |
| 243 | Hawk-Hill Operating Company, LLC | Plano, TX 75093 | Oil & Gas Operator | Jun 2009 |
| 244 | Hawkins, G. A. | Graham, TX 76450 | Oil & Gas Operator | Dec 2013 |
| 245 | Hays & Croker Partnership | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 246 | HCM | Dallas, TX 75206 | Oil & Gas Operator | Mar 2015 |
| 247 | Hep Oil Company, LTD. | Gainesville, TX 76240 | Oil & Gas Operator | Mar 2012 |
| 248 | Herring, Ray | Graham, TX 76450 | Oil & Gas Operator | Jul 2014 |
| 249 | Hess, Jerry Operating Co. | Muenster, TX 76252 | Oil & Gas Operator | Dec 2025 |
| 250 | Hill, R.M. Operating Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 251 | Hilltex Operating Company, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 2025 |
| 252 | Hoco Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2025 |
| 253 | Holloway Oil Company | Austin, TX 78764 | Oil & Gas Operator | Feb 2004 |
| 254 | Howell Petroleum Corporation | Houston, TX 77251 | Oil & Gas Operator | Oct 2015 |
| 255 | HRH Energy Group Incorporated | Carrollton, TX 75006 | Oil & Gas Operator | Nov 2009 |
| 256 | Hughes, Dan A. Company | Beeville, TX 78104 | Oil & Gas Operator | May 2006 |
| 257 | Hughes, Dan A. Company, L.P. | Beeville, TX 78104 | Oil & Gas Operator | Dec 2025 |
| 258 | Hughey, W. R., Operating Co. | Tyler, TX 75711 | Oil & Gas Operator | Feb 2005 |
| 259 | Humphrey, Thos.D. Oil Prop.,Inc. | Gainesville, TX 76241 | Oil & Gas Operator | Aug 1999 |
| 260 | Huston Minerals LP | Albany, TX 76430 | Oil & Gas Operator | Dec 2025 |
| 261 | Huston Oil | Woodson, TX 76491 | Oil & Gas Operator | Oct 2010 |
| 262 | Ipact | Austin, TX 78734 | Oil & Gas Operator | Dec 2025 |
| 263 | Ipt Oil Company | Evansville, IN 47706 | Oil & Gas Operator | Dec 2025 |
| 264 | Iron Horse Oil & Gas, Inc. | Albany, TX 76430 | Oil & Gas Operator | Dec 2025 |
| 265 | J B J Oil Properties, Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 266 | J-Brex Company | Amarillo, TX 79101 | Oil & Gas Operator | Dec 2025 |
| 267 | J-E Production, Inc. | Midland, TX 79708 | Oil & Gas Operator | Mar 2008 |
| 268 | Jackson, Jeral W. Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | May 2004 |
| 269 | Jacobs, C. E., Co. | Albany, TX 76430 | Oil & Gas Operator | Sep 2022 |
| 270 | Johnson, William D. | Fort Worth, TX 76116 | Oil & Gas Operator | Mar 2008 |
| 271 | Joint Resources Company | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 2025 |
| 272 | Jones Company, LTD. | Albany, TX 76430 | Oil & Gas Operator | May 1999 |
| 273 | JQL Energy, LLC | Albany, TX 76430 | Oil & Gas Operator | Dec 2025 |
| 274 | JTC Royalties LLC | Albany, TX 76430 | Oil & Gas Operator | Dec 2025 |
| 275 | Just Oil & Gas, Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 276 | K. D. Operating LLC. | Wichita Falls, TX 76308 | Oil Operator | Dec 2025 |
| 277 | Kadane Corporation | Dallas, TX 75205 | Oil & Gas Operator | Dec 2025 |
| 278 | Karper Company, The | Graham, TX 76450 | Oil & Gas Operator | Feb 2003 |
| 279 | Karper Oil & Gas Corporation | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 280 | KCR Energy, L.L.C. | Fate, TX 75132 | Oil Operator | Dec 2025 |
| 281 | Keating Energy, Inc. | Ambler, PA 19002 | Oil & Gas Operator | Dec 2025 |
| 282 | Kendrick Oil And Gas Company | Abilene, TX 79608 | Oil & Gas Operator | Dec 2025 |
| 283 | Kendrick Oil Co. | Abilene, TX 79608 | Oil & Gas Operator | Mar 2008 |
| 284 | Kestrel Resources, Inc. | Dallas, TX 75204 | Oil & Gas Operator | Sep 2015 |
| 285 | Killion Well Service Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2014 |
| 286 | Kimbell Oil Company Of Texas | Fort Worth, TX 76102 | Oil & Gas Operator | Sep 2025 |
| 287 | Kimberlin & Miller | Dallas, TX 75230 | Oil & Gas Operator | Dec 2025 |
| 288 | Kocana Resources | Ranchos Taos, NM 87557 | Oil & Gas Operator | Jul 1999 |
| 289 | Kramer Operating, LLC | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 290 | Kramer, Frank & Ethel FLP | Graham, TX 76450 | Oil & Gas Operator | Sep 2014 |
| 291 | Kramer, Frank C. | Graham, TX 76450 | Oil & Gas Operator | Apr 2004 |
| 292 | L.C.S. Production Company | Abilene, TX 79608 | Oil & Gas Operator | Dec 2025 |
| 293 | La VIda Energy Corporation | Midland, TX 79702 | Oil & Gas Operator | Apr 1993 |
| 294 | Lace Operating | Fort Worth, TX 76114 | Oil & Gas Operator | Jun 1997 |
| 295 | Larson, Perry L Operating Co Inc | Dallas, TX 75382 | Oil & Gas Operator | Feb 2021 |
| 296 | Leahy Oil, LLC | Arlington, TX 76006 | Oil Operator | Dec 2025 |
| 297 | Leclair Operating Co., Inc. | Abilene, TX 79602 | Oil & Gas Operator | Dec 2025 |
| 298 | Leffel'S, Inc. | Abilene, TX 79601 | Oil & Gas Operator | Jun 2020 |
| 299 | Lewis & Hays | Albany, TX 76430 | Oil & Gas Operator | Feb 2002 |
| 300 | Lewis, William T. | Graham, TX 76450 | Oil & Gas Operator | Mar 2008 |