| 1201 | Sundown Energy LP | Dallas, TX 75248 | Oil & Gas Operator | Apr 2024 |
| 1202 | Sunlight Exploration, Inc. | Canyon, TX 79015 | Oil & Gas Operator | Apr 2024 |
| 1203 | Sunset 2018, LLC | Farmington, NM 87401 | Oil & Gas Operator | Feb 2024 |
| 1204 | Sunset Well Service Holdings Inc | Midland, TX 79708 | Oil Operator | Apr 2013 |
| 1205 | Susan Sullivan Dba Lizard Production | Bloomfield, NM 87413 | Oil & Gas Operator | Mar 2011 |
| 1206 | Swepi LP | Houston, TX 77079 | Oil & Gas Operator | Jul 2020 |
| 1207 | Swift Energy Company | Houston, TX 77060 | Oil & Gas Operator | Mar 2021 |
| 1208 | Sylvite Corp | Tulsa, OK 741363908 | Oil & Gas Operator | Dec 2000 |
| 1209 | Synergex Inc | Oklahoma City, OK 73134 | Oil & Gas Operator | Jan 2024 |
| 1210 | Synergy Oil & Gas, Inc. | Houston, TX 77024 | Oil & Gas Operator | Nov 2019 |
| 1211 | Synergy Operating LLC | Farmington, NM 87499 | Oil & Gas Operator | Feb 2024 |
| 1212 | Synergy Resources | Artesia, NM 88210 | Oil & Gas Operator | Jan 2015 |
| 1213 | T And DS Lube Doctors LLC | Carlsbad, NM 88220 | Gas Operator | Feb 2024 |
| 1214 | T M Hopkins Operating Co | Kilgore, TX 75663 | Oil & Gas Operator | Oct 2002 |
| 1215 | Tacitus, LLC | Farmington, NM 87401 | Oil & Gas Operator | Feb 2024 |
| 1216 | Tahoe Energy, Inc. | Midland, TX 79703 | Oil & Gas Operator | Jul 1996 |
| 1217 | Tamarack Petroleum Company, Inc. | Midland, TX 79701 | Oil & Gas Operator | Apr 2024 |
| 1218 | Tamaroa Operating, LLC | Plano, TX 750866937 | Oil & Gas Operator | Dec 2023 |
| 1219 | Tandem Energy Corporation | Houston, TX 77056 | Oil & Gas Operator | Apr 2024 |
| 1220 | Tap Rock Operating, LLC | Golden, CO 80401 | Oil & Gas Operator | Apr 2024 |
| 1221 | Tarco Energy, LC | Lubbock, TX 79423 | Oil & Gas Operator | Jul 2023 |
| 1222 | Tascosa Energy Partners, L.L.C | Midland, TX 79701 | Oil & Gas Operator | Feb 2024 |
| 1223 | Tbi Exploration Inc | Englewood, CO 801556525 | Oil & Gas Operator | Jun 2011 |
| 1224 | Team Operating, L.L.C. | Pinehurst, TX 77362 | Oil & Gas Operator | Apr 2024 |
| 1225 | Tema Oil And Gas Company | Houston, TX 77084 | Oil & Gas Operator | Apr 2024 |
| 1226 | Tempo Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 1227 | Tenison Oil Company | Abilene, TX 79605 | Oil & Gas Operator | Apr 2024 |
| 1228 | Texaco Expl. And Prod. Inc. | Houston, TX 77236 | Oil & Gas Operator | Dec 2023 |
| 1229 | Texaco Exploration & Production Inc N W | Farmington, NM 87401 | Oil & Gas Operator | Aug 1995 |
| 1230 | Texakoma Oil & Gas Corp | Dallas, TX 75240 | Oil & Gas Operator | Sep 2014 |
| 1231 | Texas Independent Exploration LP | Houston, TX 77024 | Oil & Gas Operator | Mar 2017 |
| 1232 | Texas Reexploration Operating LC | Fredericksbrg, TX 78624 | Oil & Gas Operator | Apr 2024 |
| 1233 | Texas Vanguard Oil Company | Austin, TX 78720 | Oil & Gas Operator | Jan 2014 |
| 1234 | Texland Petroleum, L.P. | Fort Worth, TX 76107 | Oil & Gas Operator | Apr 2024 |
| 1235 | Texland Petroleum-Hobbs, L.L.C. | Fort Worth, TX 76102 | Oil & Gas Operator | Feb 2024 |
| 1236 | Texon Oil Company, Inc. | Midland, TX 79710 | Oil & Gas Operator | Apr 2023 |
| 1237 | The Colborn Company, Inc. | Eunice, NM 88231 | Oil & Gas Operator | Jan 2024 |
| 1238 | The Gary-Williams Company | Denver, CO 80202 | Oil Operator | Nov 2009 |
| 1239 | Thomas And Ruby Parkinson Trust | Tatum, NM 88267 | Oil & Gas Operator | Feb 2024 |
| 1240 | Thomas Operating Company Inc | Greeley, CO 80634 | Oil & Gas Operator | Aug 2008 |
| 1241 | Thomas R Sivley | Southlake, TX 76092 | Oil & Gas Operator | Mar 2013 |
| 1242 | Thompson Engr & Prod Corp | Farmington, NM 87402 | Oil & Gas Operator | Apr 2019 |
| 1243 | Thornton Operating Corporation | Fort Worth, TX 76162 | Oil & Gas Operator | Jul 2014 |
| 1244 | Three Forks Resources LLC | Wheat Ridge, CO 80033 | Oil & Gas Operator | Apr 2024 |
| 1245 | Three Rivers Operating Co LLC | Austin, TX 78735 | Oil & Gas Operator | Mar 2017 |
| 1246 | Three Span Oil & Gas, Inc. | Midland, TX 79710 | Oil & Gas Operator | Apr 2024 |
| 1247 | Threshold Development Company | Fort Worth, TX 76109 | Oil & Gas Operator | Aug 2016 |
| 1248 | Thriftway Marketing Corp | Farmington, NM 87401 | Gas Operator | Apr 2000 |
| 1249 | Thunderbolt Petroleum, LLC | Midland, TX 79702 | Oil & Gas Operator | Sep 2013 |
| 1250 | Tide West Oil Company | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2021 |
| 1251 | Tiffany Gas Co | Farmington, NM 87499 | Oil Operator | Jan 2010 |
| 1252 | Timberline Oil & Gas, LLC | Seminole, TX 79360 | Oil Operator | Mar 2024 |
| 1253 | Tipperary Oil & Gas Corp | Denver, CO 80202 | Oil & Gas Operator | May 2014 |
| 1254 | Tipperary Petro Co | Midland, TX 79701 | Oil & Gas Operator | Dec 1993 |
| 1255 | Tipton & Denton | Dallas, TX 752196406 | Oil & Gas Operator | Sep 2019 |
| 1256 | Tipton Denton & Denton | Hobbs, NM 88240 | Oil & Gas Operator | Sep 2019 |
| 1257 | Tipton Oil & Gas Acquisitions, Inc. | Irving, TX 75038 | Oil & Gas Operator | Sep 2010 |
| 1258 | Titan Resources I, Inc. | Midland, TX 79701 | Oil & Gas Operator | Jun 2000 |
| 1259 | Titus Oil & Gas Production, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Sep 2022 |
| 1260 | TK Operating | Cross Plains, TX 76443 | Oil & Gas Operator | Apr 2024 |
| 1261 | TKL Oil Properties Inc | Konawa, OK 74849 | Oil & Gas Operator | Dec 2023 |
| 1262 | TMBR/Sharp Drilling, Inc. | Midland, TX 79703 | Oil & Gas Operator | Feb 2004 |
| 1263 | Tola Production Company | Dallas, TX 75367 | Oil & Gas Operator | Apr 2024 |
| 1264 | Tom Boyd Drilling Co Inc | Roswell, NM 882021375 | Oil & Gas Operator | Jan 1996 |
| 1265 | Tom Brown Inc | Denver, CO 80202 | Oil & Gas Operator | Dec 2004 |
| 1266 | Tom R Cone | Hobbs, NM 88240 | Oil Operator | Oct 2009 |
| 1267 | Tomsco Energy | Artesia, NM 88210 | Oil & Gas Operator | Mar 1996 |
| 1268 | Topat Oil Corporation | Midland, TX 79701 | Oil & Gas Operator | Sep 2017 |
| 1269 | Tora Oil & Gas | Hobbs, NM 88240 | Oil & Gas Operator | Jan 2008 |
| 1270 | Tora Oil & Gas, LLC | Jal, NM 88252 | Oil & Gas Operator | Dec 2020 |
| 1271 | Torch Energy Services, Inc. | Houston, TX 77010 | Oil & Gas Operator | Sep 2011 |
| 1272 | Torreon Oil Co | FT Worth, TX 76126 | Oil & Gas Operator | Sep 2008 |
| 1273 | Transglobe Oil & Gas Corporation | Littleton, CO 801222710 | Oil & Gas Operator | Dec 1999 |
| 1274 | Trek Operating, LLC | Tulsa, OK 741520098 | Oil & Gas Operator | Mar 2021 |
| 1275 | Trilogy Operating, Inc. | Midland, TX 79708 | Oil & Gas Operator | Apr 2024 |
| 1276 | Trinity Eor, LLC | Midland, TX 79701 | Oil & Gas Operator | Jan 2019 |
| 1277 | Trinity River Energy, LLC | Houston, TX 77094 | Oil & Gas Operator | Aug 2015 |
| 1278 | Trinity University & Closuit | Loco Hills, NM 88255 | Oil & Gas Operator | Dec 2002 |
| 1279 | Trio Oil Co | Hobbs, NM 88240 | Oil & Gas Operator | Feb 2004 |
| 1280 | Tritex Resources, L.L.C. | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2009 |
| 1281 | Triumph Exploration, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 1282 | Turner Production Co | Dallas, TX 75206 | Oil & Gas Operator | Nov 2023 |
| 1283 | Turrentine Oil & Gas, Inc. | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Oct 2019 |
| 1284 | U.S. Enercorp, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Jul 2004 |
| 1285 | U.S. Enercorp, LTD. | San Antonio, TX 78209 | Oil & Gas Operator | Sep 2019 |
| 1286 | U.S. Energy Development Corp | Arlington, TX 76011 | Oil & Gas Operator | Apr 2024 |
| 1287 | Uhc New Mexico Corporation | Midland, TX 79702 | Oil & Gas Operator | Feb 2007 |
| 1288 | Union Oil Co Of California | Midland, TX 79706 | Oil & Gas Operator | Jan 2022 |
| 1289 | Unit Petroleum Company | Tulsa, OK 74170 | Oil & Gas Operator | Apr 2024 |
| 1290 | United Operating, LLC *** | Midland, TX 79710 | Oil & Gas Operator | Apr 2024 |
| 1291 | United Resources LP A Texas LMTD PRNTSHP | Austin, TX 78746 | Oil & Gas Operator | Sep 2003 |
| 1292 | Unitex Oil & Gas, L.L.C. | Midland, TX 79701 | Oil & Gas Operator | Apr 2024 |
| 1293 | Upland Production Company | Edmond, OK 73083 | Oil & Gas Operator | Apr 2024 |
| 1294 | V & R Production, Inc | La Plata, NM 87418 | Oil & Gas Operator | Oct 2006 |
| 1295 | V-F Petroleum Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 1296 | Vallecito Gas L.L.C. | Farmington, NM 87499 | Oil Operator | May 2012 |
| 1297 | Vanguard Operating, LLC | Houston, TX 77057 | Oil & Gas Operator | Feb 2021 |
| 1298 | Vantage Point Operating Co | Houston, TX 77057 | Oil & Gas Operator | Dec 2014 |
| 1299 | Vastar Resources Inc | Houston, TX 77253 | Oil & Gas Operator | Dec 2023 |
| 1300 | Vernon E. Faulconer, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Dec 2023 |