| 10401 | Stahl Petroleum Co. | Amarillo, TX 79118 | Oil & Gas Operator | Aug 2003 |
| 10402 | Stal Oil Production, L.L.C. | Argyle, TX 76226 | Oil Operator | Apr 2026 |
| 10403 | Staley Oil Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2000 |
| 10404 | Staley Operating Co. | Midland, TX 79702 | Oil & Gas Operator | Jan 2022 |
| 10405 | Staley, Jack C. | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2000 |
| 10406 | Stalking Horse Energy, Limited Liability Company | Houston, TX 77062 | Oil & Gas Operator | Apr 2026 |
| 10407 | Stallion Energy LLC | Houston, TX 77090 | Oil & Gas Operator | Oct 2009 |
| 10408 | Stallion Energy, Inc. | Houston, TX 77060 | Oil & Gas Operator | Oct 2017 |
| 10409 | Stallion Oil Company | Lafayette, LA 70505 | Oil & Gas Operator | Jun 2004 |
| 10410 | Stallion Operating, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2026 |
| 10411 | Stampede Energy Corp. | Canada, 00100 | Oil & Gas Operator | Mar 2000 |
| 10412 | Stamper Operating Co., Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2026 |
| 10413 | Standard Oil Company, Inc. | Parkesburg, WV 26103 | Oil & Gas Operator | Mar 2022 |
| 10414 | Standard Oil Tools, Inc. | College Sta, TX 77845 | Oil & Gas Operator | Apr 2026 |
| 10415 | Standard Resources Corp. | Houston, TX 77063 | Oil & Gas Operator | Apr 2026 |
| 10416 | Stanolind Operating Corp. | Midland, TX 79701 | Oil & Gas Operator | Apr 2008 |
| 10417 | Stanolind Operating LLC | Midland, TX 79702 | Oil & Gas Operator | Apr 2021 |
| 10418 | Stanolind Permian LLC | Midland, TX 79710 | Oil & Gas Operator | Apr 2026 |
| 10419 | Stanolind Production LLC | Midland, TX 79702 | Oil & Gas Operator | Dec 2020 |
| 10420 | Stanotex, LLC | Katy, TX 77494 | Oil & Gas Operator | Apr 2026 |
| 10421 | Stanton Mineral Development Inc | Austin, TX 78759 | Oil & Gas Operator | Apr 2026 |
| 10422 | Staples, James W. | Tuleta, TX 78162 | Oil & Gas Operator | Sep 2014 |
| 10423 | Staples, James W. Prod. Co. | Tuleta, TX 78162 | Oil & Gas Operator | Apr 2026 |
| 10424 | Staples, Tommy Oil Co. | Pettus, TX 78146 | Oil & Gas Operator | Mar 2008 |
| 10425 | Star Energy Inc | Dayton, PA 16222-4325 | Oil & Gas Operator | Dec 2025 |
| 10426 | Star Of Texas Energy SRVS, Inc. | Austin, TX 78702 | Oil & Gas Operator | Apr 2026 |
| 10427 | Star Oil & Gas | Ben Bolt, TX 78342 | Oil & Gas Operator | Apr 2026 |
| 10428 | Star One Energy, Inc. | Fort Worth, TX 76163 | Oil & Gas Operator | May 2012 |
| 10429 | Star Production, Inc. | Dallas, TX 75360 | Oil & Gas Operator | Apr 2026 |
| 10430 | Star-Jet Co. | Gainesville, TX 76240 | Oil Operator | Apr 2026 |
| 10431 | Starco Exploration, Inc. | Dallas, TX 75360 | Oil & Gas Operator | Apr 2026 |
| 10432 | Stardust Leasing, Inc. | Richmond, TX 77469 | Oil & Gas Operator | Jul 1999 |
| 10433 | Stark Petroleum | Tuleta, TX 78162 | Oil & Gas Operator | Apr 2026 |
| 10434 | Starkey Oilfield Service, Inc. | Sweet Home, TX 77987 | Oil & Gas Operator | Aug 2004 |
| 10435 | Starlight Ridge | Whitesboro, TX 76273 | Oil & Gas Operator | Apr 2026 |
| 10436 | Starr Operating Company | Austin, TX 78759 | Oil & Gas Operator | Apr 2026 |
| 10437 | Starr Operating, LLC | San Antonio, TX 78209 | Oil & Gas Operator | Apr 2026 |
| 10438 | Starrak Operating Company, Inc. | Midland, TX 79706 | Oil & Gas Operator | Jun 1999 |
| 10439 | Startap, Inc. | Conroe, TX 77305 | Oil Operator | Apr 2026 |
| 10440 | Startex Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Apr 2026 |
| 10441 | Stasney Well Service, LLC | Albany, TX 76430 | Oil & Gas Operator | Apr 2026 |
| 10442 | Stasney, H. R. & Sons, LTD. | Albany, TX 76430 | Oil & Gas Operator | Apr 2026 |
| 10443 | Statex Operating, LLC | Dallas, TX 75229 | Oil & Gas Operator | Mar 2007 |
| 10444 | Statex Petroleum Inc | Dallas, TX 75229 | Oil & Gas Operator | Dec 2000 |
| 10445 | Statia Enterprises, Inc | Irving, TX 75014 | Oil & Gas Operator | Apr 2026 |
| 10446 | Statoil Oil & Gas LP | Austin, TX 78730 | Oil & Gas Operator | Oct 2018 |
| 10447 | Statoil Texas Onshore Prop LLC | Austin, TX 78730 | Oil & Gas Operator | Dec 2018 |
| 10448 | Staub, Larry | Richardson, TX 75080 | Oil & Gas Operator | Aug 2003 |
| 10449 | Staub, Larry, Inc. | Azle, TX 76020 | Oil & Gas Operator | Apr 2026 |
| 10450 | STB Energy Inc. | Tulsa, OK 74105 | Oil & Gas Operator | Jul 2008 |
| 10451 | Steadfast Oil & Gas, LLC | Midland, TX 79707 | Oil & Gas Operator | Oct 2022 |
| 10452 | Stealth Onsite Solutions LLC | Pasadena, TX 77505 | Oil Operator | Apr 2026 |
| 10453 | Stealth, Inc. | Cross Plains, TX 76443 | Gas Operator | Mar 1997 |
| 10454 | Stearns Operating Company | Abilene, TX 79604 | Oil & Gas Operator | Oct 1993 |
| 10455 | Steele, Mark E. | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 10456 | Steinberger, D. | Windthorst, TX 76389 | Oil & Gas Operator | Oct 1995 |
| 10457 | Steinberger, Gerald | Windthorst, TX 76389 | Oil & Gas Operator | Sep 2007 |
| 10458 | Steindorf, Bert Oil & Gas Co. | Floresville, TX 78114 | Oil & Gas Operator | Apr 2026 |
| 10459 | Steinman, Frank C. | Electra, TX 76360 | Oil & Gas Operator | Apr 2026 |
| 10460 | Stelbar Oil Corp | Wichita, KS 67206 | Oil & Gas Operator | Aug 1995 |
| 10461 | Stelbar Oil Corporation, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Dec 2025 |
| 10462 | Steller Energy & Investment Corp | Plano, TX 75093 | Oil & Gas Operator | Feb 2021 |
| 10463 | Stellex | De Leon, TX 76444 | Oil & Gas Operator | Apr 2026 |
| 10464 | Stelucan Energy, LLC | Wichita Falls, TX 76310 | Oil & Gas Operator | Apr 2026 |
| 10465 | Stelzer Drilling Co. Inc. | Post, TX 79356 | Oil Operator | Apr 2026 |
| 10466 | Stelzer, E.A. Oil Company | Post, TX 79356 | Oil & Gas Operator | Feb 2002 |
| 10467 | Stelzer, J. C. | Post, TX 79356 | Oil & Gas Operator | Dec 1995 |
| 10468 | Stephens & Johnson Operating Co. | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2026 |
| 10469 | Stephens Energy Corp. | Graham, TX 76450 | Oil & Gas Operator | Feb 2022 |
| 10470 | Stephens Exploration, Inc. | Dallas, TX 75367 | Oil & Gas Operator | Feb 2026 |
| 10471 | Stephens Production Company | The Woodlands, TX 77381 | Oil & Gas Operator | Feb 2026 |
| 10472 | Stephens, Autry C. | Midland, TX 79701 | Oil & Gas Operator | Mar 2023 |
| 10473 | Stephens, Clayton E. | Dallas, TX 75229 | Oil & Gas Operator | Nov 2011 |
| 10474 | Stephens, Glynn | Overton, TX 75684 | Oil & Gas Operator | Oct 2001 |
| 10475 | Stephens, Hayseed Oil Inc. | Weatherford, TX 76087 | Oil & Gas Operator | Mar 2008 |
| 10476 | Stephens, Mickie L. | MC Camey, TX 79752 | Oil & Gas Operator | Aug 1998 |
| 10477 | Stephens, Morris | Graham, TX 76450 | Oil & Gas Operator | May 1996 |
| 10478 | Stephenson Oil & Gas, Inc. | Eastland, TX 76448 | Oil & Gas Operator | Sep 1999 |
| 10479 | Stephenson, Light | Whitsett, TX 78075 | Oil & Gas Operator | Nov 2000 |
| 10480 | Sterling Energy Resources, Inc. | Overland Park, KS 66212 | Oil Operator | May 2019 |
| 10481 | Sterling Energy, Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2015 |
| 10482 | Sterling Engine Service, Inc. | Alice, TX 78333 | Oil & Gas Operator | Apr 2026 |
| 10483 | Sterling Expl. & Prod. Co., LLC | Houston, TX 77057 | Oil & Gas Operator | Apr 2026 |
| 10484 | Sterling Inv. Group & Assc., Inc | Baytown, TX 77522 | Oil & Gas Operator | Apr 2026 |
| 10485 | Sterling Oil And Gas | Weatherford, TX 76086 | Oil & Gas Operator | Apr 2026 |
| 10486 | Sterlynn Oil & Gas, Inc. | Harper, TX 78631 | Oil Operator | Apr 2026 |
| 10487 | Stetson Petroleum Corp. | Rollins, MT 59931 | Oil & Gas Operator | Apr 2026 |
| 10488 | Stevens & Tull, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jun 2000 |
| 10489 | Stevens Oil & Gas LLC | Marietta, OH 45750 | Oil & Gas Operator | Dec 2024 |
| 10490 | Stevenson, Ken & Associates, Inc | La Grange, TX 78945 | Oil & Gas Operator | Sep 2002 |
| 10491 | Steward Energy II, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2025 |
| 10492 | Steward Energy, LLC | Frisco, TX 75034 | Oil & Gas Operator | Nov 2014 |
| 10493 | Stewardship Resources | Roanoke, TX 76262 | Oil & Gas Operator | Jun 2022 |
| 10494 | Stewart & Porter | Mingus, TX 76463 | Oil & Gas Operator | Apr 2002 |
| 10495 | Stewart Construction | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 10496 | Stewart Family Holdings LLC | Weatherford, TX 76087 | Oil & Gas Operator | Apr 2026 |
| 10497 | Stewart Oil & Gas | Stephenville, TX 76401 | Gas Operator | Apr 2026 |
| 10498 | Stewart Producers, Inc. | Mount Vernon, IL 62864 | Oil & Gas Operator | Dec 2025 |
| 10499 | Stewart, James G. | Graham, TX 76450 | Oil & Gas Operator | Sep 2019 |
| 10500 | Stickney Oil & Gas, Inc. | Midland, TX 79704 | Oil & Gas Operator | Nov 2014 |