| 11301 | Upstream Resource Partners, LLC | Palestine, TX 75803 | Oil Operator | Apr 2024 |
| 11302 | Uptex Operating Inc. | Dallas, TX 75201 | Oil & Gas Operator | May 2011 |
| 11303 | Uptex Operating, L.P. | Dallas, TX 75201 | Oil & Gas Operator | May 2010 |
| 11304 | Urban Oil & Gas Group, LLC | Plano, TX 75074 | Oil & Gas Operator | Apr 2024 |
| 11305 | Ursa Operating Company LLC | Denver, CO 80265 | Oil & Gas Operator | Dec 2020 |
| 11306 | Ursus Oil And Gas | Tyler, TX 75703 | Oil & Gas Operator | Apr 2024 |
| 11307 | Us Ecology Winnie, LLC | Winnie, TX 77665 | Oil Operator | Apr 2024 |
| 11308 | Us Energy Holdings, LLC | Richardson, TX 75080 | Oil & Gas Operator | Apr 2024 |
| 11309 | Us. Fuels, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2024 |
| 11310 | USA Superior Energy LLC | Houston, TX 77077 | Oil Operator | Mar 2010 |
| 11311 | USA Tubulars, Inc. | Valley Spring, TX 76885 | Oil & Gas Operator | Dec 1995 |
| 11312 | Usfg Oil & Gas, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Dec 2005 |
| 11313 | Utility Ventures Company | Pasadena, TX 77504 | Oil & Gas Operator | Apr 2024 |
| 11314 | Utoco, LTD. | Midland, TX 79704 | Oil Operator | Apr 2024 |
| 11315 | Uvalde Energy Co. | Austin, TX 78747 | Oil & Gas Operator | Nov 1994 |
| 11316 | V & H Oil, L.P. | Muenster, TX 76252 | Oil & Gas Operator | Apr 2024 |
| 11317 | V S Oil Company | Burkburnett, TX 76354 | Oil & Gas Operator | Apr 2024 |
| 11318 | V-F Petroleum Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 11319 | V/J Oil Company | Yancey, TX 78886 | Oil & Gas Operator | Oct 2015 |
| 11320 | Vaalco Energy (USA), Inc. | Houston, TX 77042 | Oil & Gas Operator | Dec 2016 |
| 11321 | Vac-U-Lift Production Co.,Inc. | Lake Forest, CA 92630 | Oil & Gas Operator | Apr 2024 |
| 11322 | Vaca Operating Company LLC | Pacific PLSDS, CA 90272 | Oil & Gas Operator | Aug 2017 |
| 11323 | Vale Petroleum Corporation | Houston, TX 77042 | Gas Operator | Jan 1995 |
| 11324 | Valence Operating Company | Kingwood, TX 77339 | Oil & Gas Operator | Apr 2024 |
| 11325 | Valentine Oil & Gas, L.C. | Carmine, TX 78932 | Oil Operator | Nov 2018 |
| 11326 | Valera Oil Company | Kingsland, TX 78639 | Oil & Gas Operator | Apr 2000 |
| 11327 | Valerius, Inc. & Zine, Inc. | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Jul 1994 |
| 11328 | Valerius, Robert D. Inc. | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Aug 2003 |
| 11329 | Valero Marketing & Supply Co | San Antonio, TX 78269-6000 | Oil & Gas Operator | Sep 2023 |
| 11330 | Validus NRG Aquilas Assetco LLC | Denver, CO 80202 | Oil & Gas Operator | Nov 2022 |
| 11331 | Validus Operating Inc. | Port Aransas, TX 78373 | Oil & Gas Operator | Oct 1998 |
| 11332 | Valla Energy Corporation | Odessa, TX 79762 | Oil & Gas Operator | Aug 2003 |
| 11333 | Valley Gathering Company | Midland, TX 79702 | Oil & Gas Operator | Feb 1997 |
| 11334 | Valley Petrochemicals, LLC | Pharr, TX 78577 | Oil Operator | Apr 2024 |
| 11335 | Valley Petroleum Company | Abilene, TX 79608 | Oil & Gas Operator | Apr 2024 |
| 11336 | Valley Resources, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Aug 2003 |
| 11337 | Valor Energy, LLC | Dallas, TX 75205 | Oil & Gas Operator | May 2023 |
| 11338 | Valpoint Operating, LLC | Amarillo, TX 79121 | Oil & Gas Operator | Apr 2024 |
| 11339 | Vamos Oil & Gas, LLC | Miami, FL 33129 | Oil & Gas Operator | Apr 2024 |
| 11340 | Van Oil Co Inc | Fort Worth, TX 76102 | Oil Operator | Dec 1997 |
| 11341 | Van Operating, LTD. | Albany, TX 76430 | Oil & Gas Operator | Apr 2024 |
| 11342 | Van Tol Oil | Sanger, TX 76266 | Oil & Gas Operator | Apr 2024 |
| 11343 | Van Winkle Oil | Floresville, TX 78114 | Oil & Gas Operator | Apr 2024 |
| 11344 | Vanco Oil & Gas Corp. | Abilene, TX 79604 | Oil & Gas Operator | Apr 2024 |
| 11345 | Vandermeer Energy Corp. | Dallas, TX 75225 | Oil & Gas Operator | Nov 1998 |
| 11346 | Vandeveer Energy, LLC | Dallas, TX 75225 | Oil & Gas Operator | Jul 2016 |
| 11347 | Vanek, R. J. | Iowa Park, TX 76367 | Oil & Gas Operator | Apr 2024 |
| 11348 | Vanguard Operating, LLC | Houston, TX 77057 | Oil & Gas Operator | Feb 2021 |
| 11349 | Vanguard Permian LLC | Houston, TX 77057 | Oil & Gas Operator | Nov 2018 |
| 11350 | Vanguard Production Company | Lubbock, TX 79410 | Oil & Gas Operator | Apr 2024 |
| 11351 | Vannatter, Louis E. | Medina, TX 78055 | Oil & Gas Operator | Dec 1996 |
| 11352 | Vantage Fort Worth Energy LLC | Pittsburgh, PA 15222 | Oil & Gas Operator | Oct 2017 |
| 11353 | Vantage Operating II, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Apr 2024 |
| 11354 | Vantage Operating, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Apr 2024 |
| 11355 | Vantage Point Operating Co | Houston, TX 77057 | Oil & Gas Operator | Dec 2014 |
| 11356 | Vanya Oil & Gas, Inc. | Hardin, TX 77561 | Oil & Gas Operator | Apr 2024 |
| 11357 | Vaquero Gas Company,Incorporated | Houston, TX 77002 | Oil & Gas Operator | Dec 1996 |
| 11358 | Vaquero Hunter Inc. | Andrews, TX 79714 | Oil & Gas Operator | Sep 2023 |
| 11359 | Vaquero Operating | FT Stockton, TX 79735 | Oil & Gas Operator | Apr 2024 |
| 11360 | Vaquero Permian, LLC | Andrews, TX 79714 | Oil & Gas Operator | Apr 2024 |
| 11361 | Vargas Energy, LTD. | Fort Worth, TX 76109 | Gas Operator | Apr 2024 |
| 11362 | Vargas Oil & Gas | San Antonio, TX 78240 | Oil Operator | Apr 2024 |
| 11363 | Vast Oil TX Operating LLC | Fullerton, CA 92832 | Oil & Gas Operator | Apr 2024 |
| 11364 | Vastar Resources Inc | Houston, TX 77253 | Oil & Gas Operator | Dec 2023 |
| 11365 | Vaughan Operating Company, LLC | Shreveport, LA 71101 | Oil & Gas Operator | Jun 2009 |
| 11366 | Vaughan Production Company, Inc. | Norman, OK 73072 | Oil & Gas Operator | Sep 2014 |
| 11367 | Vaughn Petroleum, Inc. | Dallas, TX 75219 | Oil & Gas Operator | May 2004 |
| 11368 | Vec Operating, LLC | McKinney, TX 75072 | Oil & Gas Operator | Apr 2024 |
| 11369 | Vecta Oil & Gas LTD | Dallas, TX 75235 | Oil & Gas Operator | Jan 2024 |
| 11370 | Vector Energy Corporation | Houston, TX 77060 | Oil & Gas Operator | Apr 2024 |
| 11371 | Vector Exploration Inc | Oklahoma City, OK 73142-4430 | Oil & Gas Operator | Dec 2018 |
| 11372 | Vector Oil & Gas LP | Midland, TX 79701 | Oil & Gas Operator | Sep 2014 |
| 11373 | Vega Energy Company | Oklahoma City, OK 73116 | Oil & Gas Operator | Sep 2015 |
| 11374 | Vega Operating Company | Eaton, CO 80615 | Oil & Gas Operator | Apr 2024 |
| 11375 | Veitenheimer Oil Co. | Windthorst, TX 76389 | Oil Operator | Apr 2024 |
| 11376 | Venado Oil & Gas, LLC | Austin, TX 78738 | Oil & Gas Operator | Oct 2016 |
| 11377 | Venado Operating Company LLC | Austin, TX 78738 | Oil & Gas Operator | Mar 2022 |
| 11378 | Venado Petroleum Corporation | Dallas, TX 75231 | Oil & Gas Operator | May 2012 |
| 11379 | Vencer Energy, LLC | Midland, TX 79705 | Oil & Gas Operator | Dec 2023 |
| 11380 | Veneto Exploration, LLC | Plano, TX 75074 | Oil & Gas Operator | Apr 2024 |
| 11381 | Venoco, Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 2008 |
| 11382 | Ventex Operating Corp. | Addison, TX 75001 | Oil & Gas Operator | Apr 2024 |
| 11383 | Ventum Oil And Gas, LP | Northbrook, IL 60062 | Oil & Gas Operator | Mar 2010 |
| 11384 | Ventura Oil & Gas Company | San Antonio, TX 78205 | Oil & Gas Operator | Mar 2002 |
| 11385 | Venture 9 | Sourlake, TX 77659 | Oil & Gas Operator | Aug 2003 |
| 11386 | Venus Exploration, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Jul 2013 |
| 11387 | Venus Oil Company | San Antonio, TX 78209 | Oil & Gas Operator | Dec 2002 |
| 11388 | Veracity Energy LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Aug 2023 |
| 11389 | Verado Energy, Inc. | Allen, TX 75013 | Oil & Gas Operator | Apr 2024 |
| 11390 | Verdad Oil & Gas Corporation | Dallas, TX 75235 | Oil & Gas Operator | Apr 2024 |
| 11391 | Verdugo-Pablo Energy, LLC | Amarillo, TX 79105 | Oil & Gas Operator | Apr 2024 |
| 11392 | Verdun Oil & Gas LLC | Houston, TX 77024 | Oil & Gas Operator | Apr 2024 |
| 11393 | Veritas Energy LLC | San Antonio, TX 78231 | Oil & Gas Operator | Apr 2024 |
| 11394 | Vermilion Resources, Inc. | Houston, TX 77060 | Oil & Gas Operator | Sep 2009 |
| 11395 | Vermillion Production, Inc. | Pearsall, TX 78061 | Oil & Gas Operator | Apr 2024 |
| 11396 | Vernor, Milburn | Uvalde, TX 78801 | Oil & Gas Operator | Aug 2008 |
| 11397 | Verona Energy, Inc. | Newellton, LA 71357 | Oil & Gas Operator | Nov 2023 |
| 11398 | Vertox LLC | Southlake, TX 76092 | Oil Operator | Apr 2024 |
| 11399 | Verus Energy, Inc | Houston, TX 77098 | Oil & Gas Operator | Sep 2004 |
| 11400 | Vess Oil Corporation | Dallas, TX 75201 | Oil & Gas Operator | Apr 2024 |