| 201 | Exxon Corporation | Houston, TX 77210 | Oil & Gas Operator | Jan 2026 |
| 202 | Exxon Mobil Corporation | Spring, TX 77389 | Oil & Gas Operator | Jun 2026 |
| 203 | Fagadau Energy Corporation | Dallas, TX 75206 | Oil & Gas Operator | Apr 2006 |
| 204 | Farmers Of Tulsa Energy Corp. | Tulsa, OK 74103 | Oil & Gas Operator | Sep 1997 |
| 205 | Fasken Oil And Ranch, LTD. | Midland, TX 79707 | Oil & Gas Operator | Jun 2026 |
| 206 | Fasken, Barbara | Midland, TX 79701 | Oil & Gas Operator | Dec 1995 |
| 207 | FDL Operating, LLC | Judson, TX 75660 | Oil & Gas Operator | Jun 2026 |
| 208 | Fed Operating LLC | Midland, TX 79701 | Oil & Gas Operator | Jun 2026 |
| 209 | Felix Energy Holdings II, LLC | Tulsa, OK 74172 | Oil & Gas Operator | Apr 2020 |
| 210 | Fiml Natural Resources, LLC | Denver, CO 80202 | Oil & Gas Operator | Aug 2014 |
| 211 | Finaly Resources LLC | Sunset Beach, CA 90742 | Oil & Gas Operator | Jun 2026 |
| 212 | Finley Resources Inc | Fort Worth, TX 76113 | Oil & Gas Operator | Jun 2026 |
| 213 | First Reserve Oil & Gas Co | Houston, TX 77002 | Oil & Gas Operator | Apr 2000 |
| 214 | Fivestones Energy LLC | Midland, TX 79710 | Oil & Gas Operator | Jun 2026 |
| 215 | Flat Top Operating, LLC | Midland, TX 79707 | Oil & Gas Operator | Jun 2026 |
| 216 | Forest Oil Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 217 | Forest Oil Permian Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 218 | Forte Energy Corporation | Dallas, TX 75205 | Oil & Gas Operator | Dec 2010 |
| 219 | Fortson Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2020 |
| 220 | Fortune Resources LLC | Longview, TX 75604 | Oil & Gas Operator | Jun 2026 |
| 221 | Foundation Energy Management, LLC | Addison, TX 75001 | Oil & Gas Operator | Jun 2026 |
| 222 | Geodyne Operating Company | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2015 |
| 223 | Geosurveys, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Jun 2026 |
| 224 | GGP Exploration, LTD. | Fort Worth, TX 76101 | Oil & Gas Operator | Jun 2026 |
| 225 | Global West Exploration Inc. | Houston, TX 77229 | Oil & Gas Operator | Dec 1995 |
| 226 | Glossop Oil & Gas, LLC | Midland, TX 79704 | Oil & Gas Operator | Jul 2025 |
| 227 | Glossop, Robert L. | Midland, TX 79704 | Oil & Gas Operator | Sep 2007 |
| 228 | Glossop, Robert L. Estate | Midland, TX 79704 | Oil & Gas Operator | Feb 2018 |
| 229 | Golden Resources Corporation | Dallas, TX 75238 | Oil & Gas Operator | Dec 1998 |
| 230 | Golden Specialties Oil & Gas | Midland, TX 79708 | Oil & Gas Operator | Jun 2026 |
| 231 | Goldston Oil Corporation | Houston, TX 77257 | Oil & Gas Operator | Jun 2026 |
| 232 | Goodnight Midstream Permian, LLC | Dallas, TX 75206 | Oil & Gas Operator | Jun 2026 |
| 233 | Gouger Oil Co. | San Antonio, TX 78217 | Oil & Gas Operator | Nov 1995 |
| 234 | Graham Royalty LTD | Covington, LA 70434 | Oil & Gas Operator | Jul 2007 |
| 235 | Grand Banks Energy Company | Fort Worth, TX 76102 | Oil & Gas Operator | Feb 2026 |
| 236 | Grayrock Energy II, LLC | Fort Worth, TX 76101 | Oil & Gas Operator | Jun 2026 |
| 237 | Great Basin Petroleum Serv, L.P. | Odessa, TX 79765 | Oil & Gas Operator | Jul 2008 |
| 238 | Great Basin Well Service Corp. | Odessa, TX 79765 | Oil & Gas Operator | Feb 2025 |
| 239 | Great Western Drilling Company | Midland, TX 79701 | Oil & Gas Operator | Jun 2026 |
| 240 | Green, Roy W. Oil & Gas | San Angelo, TX 76902 | Oil & Gas Operator | Jun 2021 |
| 241 | Greenstone Energy, LLC | Houston, TX 77208 | Oil Operator | Jun 2026 |
| 242 | Griffin Petroleum Company | Midland, TX 79705 | Oil & Gas Operator | Jun 2026 |
| 243 | Grover-McKinney Oil Company | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 244 | Gruy Petroleum Management Co. | Irving, TX 75014 | Oil & Gas Operator | Nov 2014 |
| 245 | Guest Petroleum Incorporated | Edmond, OK 73013 | Oil & Gas Operator | Feb 2026 |
| 246 | H & O Operating Co | Odessa, TX 79764 | Oil & Gas Operator | Mar 2008 |
| 247 | H&P Oil & Gas LLC | Mertzon, TX 76941 | Oil & Gas Operator | Jun 2026 |
| 248 | Hallwood Petroleum, Inc. | Midland, TX 79701 | Oil & Gas Operator | Jan 2026 |
| 249 | Hamill Resources, Inc. | Houston, TX 77002 | Oil & Gas Operator | Apr 1999 |
| 250 | Hamman Oil & Refining Company | Houston, TX 77098 | Oil & Gas Operator | Jun 2026 |
| 251 | Hampton Resources Corporation | Houston, TX 77010 | Oil & Gas Operator | Mar 1996 |
| 252 | Hane Operating, Inc. | Santa Anna, TX 76878 | Oil & Gas Operator | Sep 2005 |
| 253 | Hanley Petroleum Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2017 |
| 254 | Hannathon Petroleum II, LLC | Midland, TX 79705 | Oil & Gas Operator | Jun 2026 |
| 255 | Hannathon Petroleum, LLC | Midland, TX 79705 | Oil & Gas Operator | Jun 2026 |
| 256 | Hanson Corporation | New Braunfels, TX 78132 | Oil & Gas Operator | Mar 2008 |
| 257 | Harding Well Service Co. | Coahoma, TX 79511 | Oil & Gas Operator | Aug 2003 |
| 258 | Harmony Drilling Company, Inc. | Denver, CO 80222 | Oil & Gas Operator | Nov 2016 |
| 259 | Hartoil Corporation | Post, TX 79356 | Oil & Gas Operator | Jun 2026 |
| 260 | Headington Energy Partners, LLC | Corpus Christ, TX 78401 | Oil & Gas Operator | Jun 2026 |
| 261 | Hec Petroleum, Inc | Midland, TX 79705 | Oil & Gas Operator | Mar 2006 |
| 262 | Hendrix, John H. Corporation | Midland, TX 79705 | Oil & Gas Operator | Sep 2018 |
| 263 | Henry Petroleum LP | Midland, TX 79701 | Oil & Gas Operator | Dec 2008 |
| 264 | Hexp Operating, LLC | Midland, TX 79705 | Oil & Gas Operator | Jun 2026 |
| 265 | High Sky Oil & Gas | Midland, TX 79705 | Oil & Gas Operator | Jun 2008 |
| 266 | Hillside Oil & Gas, LLC | Midland, TX 79708 | Oil & Gas Operator | Apr 2016 |
| 267 | Holly Petroleum, Inc. | Midland, TX 79702 | Oil & Gas Operator | Nov 2008 |
| 268 | Horizon Oil & Gas Co. | Dallas, TX 75221 | Oil & Gas Operator | Jan 2005 |
| 269 | Houston Oil & Minerals Corp. | Houston, TX 77002 | Oil & Gas Operator | Aug 1996 |
| 270 | HRB Operating Company, Inc. | Bridgeport, TX 76426 | Oil & Gas Operator | Jun 2026 |
| 271 | Hrubetz Operating Company | Dallas, TX 75225 | Oil & Gas Operator | Feb 1999 |
| 272 | Huff, Jack | Midland, TX 79710 | Oil & Gas Operator | Dec 2004 |
| 273 | Hugoton Energy Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Dec 2019 |
| 274 | Hunt Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Jun 2026 |
| 275 | Huntington Energy LLC | Nichols Hill, OK 73116 | Oil & Gas Operator | Jun 2026 |
| 276 | Hurley Petroleum Corporation | Baton Rouge, LA 70821 | Oil & Gas Operator | Feb 2000 |
| 277 | Ica Energy Operating, L.L.C. | Odessa, TX 79760 | Oil & Gas Operator | Jun 2026 |
| 278 | Independence Resources MGMT, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Mar 2021 |
| 279 | Ip Petroleum Company, Inc. | Houston, TX 77210 | Oil & Gas Operator | Mar 2008 |
| 280 | Ipact | Austin, TX 78734 | Oil & Gas Operator | Jun 2026 |
| 281 | Ipt Oil Company | Evansville, IN 47706 | Oil & Gas Operator | Jun 2026 |
| 282 | Isaacson Energy Resources, LLC | Austin, TX 78741 | Oil & Gas Operator | Jun 2026 |
| 283 | J J Oil & Gas | Abilene, TX 79608 | Oil & Gas Operator | Mar 2008 |
| 284 | Jamex, Inc. | Lewisville, TX 75067 | Oil & Gas Operator | Jun 2026 |
| 285 | Jetta Operating Company, Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2026 |
| 286 | Jin Petroleum LLC | New Braunfels, TX 78130 | Oil Operator | Jun 2026 |
| 287 | JM Cox Resources LP | Midland, TX 79702 | Oil & Gas Operator | Apr 2019 |
| 288 | Jtex Oil Company, LLC | Colorado City, TX 79512 | Oil & Gas Operator | Jan 2025 |
| 289 | Kachina Oil & Gas Inc. | Austin, TX 78766 | Oil & Gas Operator | Jul 2002 |
| 290 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Jun 2026 |
| 291 | Karico GP, LLC | Midland, TX 79705 | Oil & Gas Operator | Jun 2026 |
| 292 | Kasle Energy Inc. | Cross Plains, TX 76443 | Oil & Gas Operator | Mar 2017 |
| 293 | Kastman Oil Company | Lubbock, TX 79408 | Oil & Gas Operator | Nov 2012 |
| 294 | KC Resources Inc | Snowmass VLG., CO 81615 | Oil & Gas Operator | Feb 2026 |
| 295 | Kem Energy, Inc. | Katy, TX 77450 | Oil & Gas Operator | Jun 2026 |
| 296 | Kerr-McGee Corporation | Dallas, TX 75380 | Oil & Gas Operator | Feb 2026 |
| 297 | Kerr-McGee Oil & Gas Onshore LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2017 |
| 298 | Kerr-McGee Oil & Gas Onshore LP | Houston, TX 77046 | Oil & Gas Operator | Jun 2026 |
| 299 | Kindred Petroleum Company | Midland, TX 79702 | Oil & Gas Operator | Jun 2026 |
| 300 | King Energy Resources | Kerrville, TX 78029 | Oil & Gas Operator | Jun 2026 |