| 1301 | Tide West Oil Company | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2021 |
| 1302 | Tiffany Gas Co | Farmington, NM 87499 | Oil Operator | Jan 2010 |
| 1303 | Timberline Oil & Gas, LLC | Seminole, TX 79360 | Oil Operator | Dec 2024 |
| 1304 | Tipperary Oil & Gas Corp | Denver, CO 80202 | Oil & Gas Operator | May 2014 |
| 1305 | Tipperary Petro Co | Midland, TX 79701 | Oil & Gas Operator | Dec 1993 |
| 1306 | Tipton & Denton | Dallas, TX 752196406 | Oil & Gas Operator | Sep 2019 |
| 1307 | Tipton Denton & Denton | Hobbs, NM 88240 | Oil & Gas Operator | Sep 2019 |
| 1308 | Tipton Oil & Gas Acquisitions, Inc. | Irving, TX 75038 | Oil & Gas Operator | Sep 2010 |
| 1309 | Titan Resources I, Inc. | Midland, TX 79701 | Oil & Gas Operator | Jun 2000 |
| 1310 | Titus Oil & Gas Production, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Sep 2022 |
| 1311 | TK Operating | Cross Plains, TX 76443 | Oil & Gas Operator | Apr 2025 |
| 1312 | TKL Oil Properties Inc | Konawa, OK 74849 | Oil & Gas Operator | Dec 2024 |
| 1313 | TMBR/Sharp Drilling, Inc. | Midland, TX 79703 | Oil & Gas Operator | Feb 2004 |
| 1314 | Tola Production Company | Dallas, TX 75367 | Oil & Gas Operator | Apr 2025 |
| 1315 | Tom Boyd Drilling Co Inc | Roswell, NM 882021375 | Oil & Gas Operator | Jan 1996 |
| 1316 | Tom Brown Inc | Denver, CO 80202 | Oil & Gas Operator | Dec 2004 |
| 1317 | Tom R Cone | Hobbs, NM 88240 | Oil Operator | Oct 2009 |
| 1318 | Tomahawk Operating Co | Elida, NM 88116 | Oil & Gas Operator | Aug 2014 |
| 1319 | Tomsco Energy | Artesia, NM 88210 | Oil & Gas Operator | Mar 1996 |
| 1320 | Topat Oil Corporation | Midland, TX 79701 | Oil & Gas Operator | Sep 2017 |
| 1321 | Tora Oil & Gas | Hobbs, NM 88240 | Oil & Gas Operator | Jan 2008 |
| 1322 | Tora Oil & Gas, LLC | Jal, NM 88252 | Oil & Gas Operator | Dec 2020 |
| 1323 | Torch Energy Services, Inc. | Houston, TX 77010 | Oil & Gas Operator | Sep 2011 |
| 1324 | Torreon Oil Co | FT Worth, TX 76126 | Oil & Gas Operator | Sep 2008 |
| 1325 | Transglobe Oil & Gas Corporation | Littleton, CO 801222710 | Oil & Gas Operator | Dec 1999 |
| 1326 | Trek Operating, LLC | Tulsa, OK 741520098 | Oil & Gas Operator | Mar 2021 |
| 1327 | Trilogy Operating, Inc. | Midland, TX 79708 | Oil & Gas Operator | Apr 2025 |
| 1328 | Trinity Eor, LLC | Midland, TX 79701 | Oil & Gas Operator | Jan 2019 |
| 1329 | Trinity River Energy, LLC | Houston, TX 77094 | Oil & Gas Operator | Aug 2015 |
| 1330 | Trinity University & Closuit | Loco Hills, NM 88255 | Oil & Gas Operator | Dec 2002 |
| 1331 | Trio Oil Co | Hobbs, NM 88240 | Oil & Gas Operator | Feb 2004 |
| 1332 | Tritex Resources, L.L.C. | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2009 |
| 1333 | Triumph Exploration, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 1334 | Turner Production Co | Dallas, TX 75206 | Oil & Gas Operator | Nov 2023 |
| 1335 | Turrentine Oil & Gas, Inc. | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Oct 2019 |
| 1336 | U.S. Enercorp, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Jul 2004 |
| 1337 | U.S. Enercorp, LTD. | San Antonio, TX 78209 | Oil & Gas Operator | Sep 2019 |
| 1338 | U.S. Energy Development Corp | Fort Worth, TX 76164 | Oil & Gas Operator | Apr 2025 |
| 1339 | Uhc New Mexico Corporation | Midland, TX 79702 | Oil & Gas Operator | Feb 2007 |
| 1340 | Union Oil Co Of California | Midland, TX 79706 | Oil & Gas Operator | Jan 2022 |
| 1341 | Unit Petroleum Company | Tulsa, OK 74170 | Oil & Gas Operator | Apr 2025 |
| 1342 | United Operating, LLC *** | Midland, TX 79710 | Oil & Gas Operator | Apr 2025 |
| 1343 | United Resources LP A Texas LMTD PRNTSHP | Austin, TX 78746 | Oil & Gas Operator | Sep 2003 |
| 1344 | Unitex Oil & Gas, L.L.C. | Midland, TX 79701 | Oil & Gas Operator | Apr 2025 |
| 1345 | Upland Production Company | Edmond, OK 73083 | Oil & Gas Operator | Apr 2025 |
| 1346 | V & R Production, Inc | La Plata, NM 87418 | Oil & Gas Operator | Oct 2006 |
| 1347 | V-F Petroleum Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 1348 | Vallecito Gas L.L.C. | Farmington, NM 87499 | Oil Operator | May 2012 |
| 1349 | Vanguard Operating, LLC | Houston, TX 77057 | Oil & Gas Operator | Feb 2021 |
| 1350 | Vantage Point Operating Co | Houston, TX 77057 | Oil & Gas Operator | Dec 2014 |
| 1351 | Vastar Resources Inc | Houston, TX 77253 | Oil & Gas Operator | Dec 2024 |
| 1352 | Vernon E. Faulconer, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Dec 2024 |
| 1353 | Victory Oil & Gas Inc | Gun Barrel Cy, TX 75156 | Oil & Gas Operator | Apr 2025 |
| 1354 | Vinson Exploration, Inc. | Midland, TX 79701 | Gas Operator | Dec 2020 |
| 1355 | Vintage Drilling LLC | Artesia, NM 88211024 | Oil & Gas Operator | Feb 2025 |
| 1356 | Vintage Petroleum, LLC | Houston, TX 77210 | Oil & Gas Operator | Dec 2019 |
| 1357 | Vision Energy Group LLC | Lafayette, LA 70503 | Oil Operator | Jan 2025 |
| 1358 | Vision Energy Inc | Carlsbad, NM 88221 | Oil & Gas Operator | Aug 2022 |
| 1359 | Vista Resources Of Texas, Inc. | Midland, TX 79701 | Oil & Gas Operator | Feb 2000 |
| 1360 | VPR Operating LLC | Austin, TX 78746 | Oil & Gas Operator | Oct 2013 |
| 1361 | W & W Oil, Inc. | Lovington, NM 88260 | Oil & Gas Operator | May 1999 |
| 1362 | W B Hamilton Estate | Wichita Falls, TX 76301 | Oil & Gas Operator | Jan 2021 |
| 1363 | W B Yarborough | Hobbs, NM 88241 | Oil & Gas Operator | Nov 1995 |
| 1364 | W E Jeffers | Artesia, NM 88210 | Oil Operator | Nov 2004 |
| 1365 | W H Brininstool | Jal, NM 88252 | Oil & Gas Operator | Aug 2006 |
| 1366 | W J Sweatt | Artesoa, NM 88211 | Oil Operator | Oct 2020 |
| 1367 | W M Gallaway | Farmington, NM 874990307 | Oil & Gas Operator | Jun 2013 |
| 1368 | W R Ericksen | Hobbs, NM 882411109 | Oil & Gas Operator | Jul 1994 |
| 1369 | W. A. Moncrief, Jr. | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2025 |
| 1370 | Wade Energy Corporation | Carlsbad, NM 88220 | Oil & Gas Operator | Sep 1999 |
| 1371 | Wadi Petroleum Inc | Houston, TX 77014 | Oil & Gas Operator | May 2018 |
| 1372 | Wagner & Brown, LTD. | Midland, TX 79702 | Oil & Gas Operator | Aug 2014 |
| 1373 | Wagner Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2025 |
| 1374 | Walker Oil & Gas Corporaton | Roswell, NM 88202 | Oil & Gas Operator | Oct 1998 |
| 1375 | Wallace Oil & Gas Inc | Oklahoma City, OK 73156 | Oil & Gas Operator | Apr 2025 |
| 1376 | Wallen Production Co. | Midland, TX 79702 | Oil & Gas Operator | Aug 1996 |
| 1377 | Walsh & Watts Inc | Aledo, TX 76008 | Oil & Gas Operator | Apr 2025 |
| 1378 | Walter Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | May 2009 |
| 1379 | Walton Properties LTD. | Midland, TX 79702 | Oil & Gas Operator | Feb 2004 |
| 1380 | Wapiti Operating, LLC | Houston, TX 77043 | Oil & Gas Operator | Apr 2025 |
| 1381 | Warren American Oil Co | Tulsa, OK 74147 | Oil & Gas Operator | Feb 2025 |
| 1382 | Warren E & P Inc | Dallas, TX 75240 | Oil & Gas Operator | Dec 2024 |
| 1383 | Warrior Inc | Hobbs, NM 88241 | Oil & Gas Operator | Feb 1998 |
| 1384 | Waylander LLC | Plano, TX 75025 | Oil Operator | Feb 2025 |
| 1385 | Wayne Head | Artesia, NM 88210 | Oil & Gas Operator | Apr 2009 |
| 1386 | Wayne Moore | Midland, TX 79701 | Oil & Gas Operator | May 1997 |
| 1387 | Wespac Energy, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Dec 2019 |
| 1388 | West Largo Corp | Tulsa, OK 74137 | Oil & Gas Operator | Sep 2023 |
| 1389 | Westall-Mask | Roswell, NM 88201 | Oil & Gas Operator | Dec 1994 |
| 1390 | Westbrook Oil Corp | Jal, NM 88252 | Oil & Gas Operator | May 2018 |
| 1391 | Westerly Exploration, Inc. | Houston, TX 77256 | Oil & Gas Operator | Apr 2025 |
| 1392 | Western Interior Energy Inc. | Denver, CO 80202 | Oil & Gas Operator | Jul 2020 |
| 1393 | Western Oil & Minerals LTD | Farmington, NM 874991228 | Oil & Gas Operator | Feb 2025 |
| 1394 | Western Oil Producers Inc | Roswell, NM 88202 | Oil & Gas Operator | Jul 2005 |
| 1395 | Western Reserves Oil Co Inc | Midland, TX 79705 | Oil & Gas Operator | Oct 2020 |
| 1396 | Westland Oil Development Corp. | Conroe, TX 77305 | Oil & Gas Operator | Mar 2008 |
| 1397 | Weststar Exploration Co | Houston, TX 77027 | Oil & Gas Operator | Mar 2021 |
| 1398 | White Rock Oil & Gas, LLC | Plano, TX 75024 | Oil & Gas Operator | Apr 2025 |
| 1399 | Whiting Oil And Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Apr 2025 |
| 1400 | Whittier Energy Company | Farmington, NM 87499 | Oil & Gas Operator | Nov 2002 |