| 10301 | Shelby Operating, Inc. | Flower Mound, TX 75028 | Oil & Gas Operator | Jul 1997 |
| 10302 | Shelby Production Co. | Kilgore, TX 75663 | Oil & Gas Operator | Mar 2009 |
| 10303 | Shelby Production, Inc. | Kilgore, TX 75663 | Gas Operator | Feb 2026 |
| 10304 | Shelby, Michael H. | Shreveport, LA 71101 | Oil & Gas Operator | Feb 2026 |
| 10305 | Shelco | Maysville, MO 64469 | Oil & Gas Operator | May 2021 |
| 10306 | Sheldon Resources, L.P. | Bryan, TX 77805 | Oil & Gas Operator | Feb 2026 |
| 10307 | Shell Frontier Oil & Gas Inc. | Houston, TX 77001 | Oil & Gas Operator | Feb 1997 |
| 10308 | Shell Land & Energy Co. | Houston, TX 77001 | Oil & Gas Operator | Feb 1997 |
| 10309 | Shell Offshore Inc. | New Orleans, LA 70161 | Oil & Gas Operator | Jan 2008 |
| 10310 | Shell Onshore Ventures Inc | Houston, TX 77210 | Gas Operator | Jun 2002 |
| 10311 | Shell Western E&P | Houston, TX 77001 | Oil & Gas Operator | Feb 2026 |
| 10312 | Shell Western E&P Inc. | Houston, TX 77001 | Oil & Gas Operator | May 2011 |
| 10313 | Shelley, Richard W | Wichita Falls, TX 76310 | Oil & Gas Operator | Jun 2015 |
| 10314 | Shelton, Charles M. | Baytown, TX 77521 | Oil & Gas Operator | Aug 2003 |
| 10315 | Shenandoah Oil, Inc. (I) | Midland, TX 79710 | Oil & Gas Operator | Apr 1996 |
| 10316 | Shenandoah Petroleum Corporation | Midland, TX 79705 | Oil & Gas Operator | Feb 2026 |
| 10317 | Shenandoah Resources LLC | Houston, TX 77086 | Oil & Gas Operator | Apr 2020 |
| 10318 | Sheneeda Energy, LLC | O Brien, TX 79539 | Oil Operator | Jun 2025 |
| 10319 | Shepperd, William M. | Houston, TX 77279 | Oil & Gas Operator | Sep 2012 |
| 10320 | Sheridan Energy,Inc. | Houston, TX 77002 | Oil & Gas Operator | Feb 2000 |
| 10321 | Sheridan Production Co III, LLC | Houston, TX 77056 | Oil & Gas Operator | Feb 2026 |
| 10322 | Sheridan Production Company, LLC | Houston, TX 77056 | Oil & Gas Operator | Nov 2025 |
| 10323 | Sherley, O. C. | Megargel, TX 76370 | Oil & Gas Operator | Aug 2003 |
| 10324 | Sherman Oil Company LLC | Wichita Falls, TX 76308 | Oil Operator | Apr 2025 |
| 10325 | Sherman, L. B. | Early, TX 76803 | Oil & Gas Operator | Jun 1998 |
| 10326 | Shidler, Mark L., Inc. | Houston, TX 77055 | Oil & Gas Operator | Feb 2026 |
| 10327 | Shield Operating Co. | Georgetown, TX 78627 | Oil & Gas Operator | Aug 2003 |
| 10328 | Shield Petroleum | College Sta, TX 77845 | Oil & Gas Operator | Feb 2026 |
| 10329 | Shifflett Operating Company | Snyder, TX 79550 | Oil & Gas Operator | Feb 2026 |
| 10330 | Shiloh Oil Company LLC | Williston, FL 32696 | Oil & Gas Operator | Feb 2026 |
| 10331 | Shiner Exploration, LLC | Houston, TX 77091 | Oil & Gas Operator | Feb 2026 |
| 10332 | Shines'S Oil Co. | Jacksboro, TX 76458 | Oil & Gas Operator | Oct 2009 |
| 10333 | Shinnery Oil Company, Inc. | Midland, TX 79701 | Oil & Gas Operator | Feb 2026 |
| 10334 | Shirley, B. J. | Lawn, TX 79530 | Oil & Gas Operator | Mar 2008 |
| 10335 | Shivers, Linward, Operator | Shreveport, LA 71161 | Oil & Gas Operator | Sep 1997 |
| 10336 | SHL Operating | Lubbock, TX 79416 | Oil & Gas Operator | Feb 2026 |
| 10337 | Shoco Production LLC | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 10338 | Shoco Production, L.P. | Kilgore, TX 75663 | Oil & Gas Operator | May 2020 |
| 10339 | Shootin Star Oil, L.L.C. | Natalia, TX 78059 | Oil Operator | Feb 2026 |
| 10340 | Shore Petroleum Corp. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Feb 2026 |
| 10341 | Shore Production Co. | Longview, TX 75604 | Oil & Gas Operator | Aug 2005 |
| 10342 | Shoreham Oil & Gas Company, Inc. | Katy, TX 77492 | Oil & Gas Operator | Feb 2026 |
| 10343 | Shoreline Energy Partners, LLC | Chandler, AZ 85249 | Oil Operator | May 2011 |
| 10344 | Shoreline Petroleum Corp. | Channelview, TX 77530 | Oil & Gas Operator | Sep 2003 |
| 10345 | Shoreline Production Serv., Inc. | Rockport, TX 78381 | Oil & Gas Operator | Apr 2002 |
| 10346 | Short Oil Co. | Luling, TX 78648 | Oil & Gas Operator | Nov 2025 |
| 10347 | Shoshone Oil Company | Dallas, TX 75244 | Oil & Gas Operator | May 1994 |
| 10348 | Showdown Energy Corporation | Dallas, TX 75230 | Oil & Gas Operator | Aug 2003 |
| 10349 | Showdown Operating, Inc. | Dallas, TX 75230 | Oil & Gas Operator | May 1996 |
| 10350 | Showhorn Holding Co., L.L.C. | Normangee, TX 77871 | Oil Operator | Feb 2026 |
| 10351 | SHS Operating Company | Shreveport, LA 71149 | Oil & Gas Operator | Jan 2025 |
| 10352 | Shubuta Oil Corporation | Houston, TX 77056 | Oil & Gas Operator | Sep 1998 |
| 10353 | Shuler Drilling Co., Inc. | El Dorado, AR 71730 | Oil & Gas Operator | Jan 2025 |
| 10354 | Shumate, Jess | Brookesmith, TX 76827 | Oil Operator | Jun 2006 |
| 10355 | Shuping, Dona J. | Hamlin, TX 79520 | Gas Operator | Dec 2011 |
| 10356 | SHWJ Oil & Gas Co., Inc. | Oil City, LA 71061 | Oil Operator | Feb 2026 |
| 10357 | Siana Oil & Gas | Conroe, TX 77305 | Oil & Gas Operator | Feb 2026 |
| 10358 | Sideline Oil & Gas, L.P. | Friendswood, TX 77549 | Oil Operator | Feb 2026 |
| 10359 | Sidwell Oil & Gas, Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Sep 2014 |
| 10360 | Sidwell Operating Company, L.P. | Amarillo, TX 79105 | Oil & Gas Operator | Feb 2026 |
| 10361 | Siegfried R H Inc | Tulsa, OK 74104 | Oil & Gas Operator | Mar 2008 |
| 10362 | Siempre Energy Operating, LLC | Houston, TX 77094 | Oil Operator | Feb 2026 |
| 10363 | Sien Operating Company, LLC | San Antonio, TX 78209 | Oil Operator | May 2023 |
| 10364 | Sierra Exploration Company | San Antonio, TX 78209 | Oil & Gas Operator | Mar 2008 |
| 10365 | Sierra Group, L.L.C. | San Angelo, TX 76904 | Oil & Gas Operator | Jan 2025 |
| 10366 | Sierra Lima Oil & Gas, LLC | Abilene, TX 79604 | Oil & Gas Operator | Nov 2025 |
| 10367 | Sierra Madre Natural Res., LLC | Dallas, TX 75225 | Oil & Gas Operator | Dec 2016 |
| 10368 | Sierra Minerals, Inc. | Rockdale, TX 76567 | Oil & Gas Operator | Feb 2026 |
| 10369 | Sierra Oil Company | Fort Worth, TX 76106 | Oil & Gas Operator | Feb 2026 |
| 10370 | Sierra Resources, Inc. | Oklahoma City, OK 73142 | Oil & Gas Operator | Dec 2025 |
| 10371 | Sierra Resources, LLC | Houston, TX 77219 | Oil & Gas Operator | Aug 2021 |
| 10372 | Siete Oil And Gas Corporation | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 10373 | Sigma Energy & Explor., Co LLC | Ozona, TX 76943 | Oil & Gas Operator | Feb 2010 |
| 10374 | Sigma Exploration Corp., The | Dallas, TX 75230 | Oil & Gas Operator | Sep 1998 |
| 10375 | Sigma Oper & Develop Co., Inc. | Midland, TX 79701 | Oil & Gas Operator | Feb 2026 |
| 10376 | Sigmon Construction Co., Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 10377 | Sigmon Production Company, Inc. | Longview, TX 75608 | Oil & Gas Operator | Dec 2013 |
| 10378 | Signal Oil And Gas Company | Colleyville, TX 76034 | Oil & Gas Operator | Feb 2026 |
| 10379 | Signal Oil Company, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 10380 | Sikes Operating, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Jun 2003 |
| 10381 | Sikes, Arlas M. | Brownwood, TX 76801 | Oil & Gas Operator | May 2000 |
| 10382 | Siltstone Resources Op II, LLC | Wilmington, DE 19801 | Oil & Gas Operator | Feb 2026 |
| 10383 | Silver Anchor Resources LLC | Azle, TX 76020 | Oil & Gas Operator | Feb 2026 |
| 10384 | Silver Creek Oil | Merkel, TX 79536 | Oil & Gas Operator | Aug 2003 |
| 10385 | Silver Creek Oil & Gas, LLC | Flower Mound, TX 75022 | Oil & Gas Operator | Feb 2026 |
| 10386 | Silver Creek Permian Op Co, LLC | Irving, TX 75038 | Oil & Gas Operator | Apr 2023 |
| 10387 | Silver Creek Resources, LLC | Irving, TX 75038 | Oil & Gas Operator | Apr 2017 |
| 10388 | Silver Cross Energy Partners LLC | Richmond, TX 77469 | Oil & Gas Operator | Feb 2026 |
| 10389 | Silver Fox Oil & Gas LLC | McAllen, TX 78504 | Oil & Gas Operator | Feb 2026 |
| 10390 | Silver Hill Energy Operating, LLC | Dallas, TX 75201 | Oil & Gas Operator | Feb 2026 |
| 10391 | Silver Hill Energy Partners, LLC | Dallas, TX 75219 | Oil & Gas Operator | Feb 2017 |
| 10392 | Silver Oak Energy, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2016 |
| 10393 | Silver Oak Operating, Inc. | Longview, TX 75601 | Oil & Gas Operator | Dec 2009 |
| 10394 | Silver Oak Operating, LLC | Longview, TX 75604 | Oil & Gas Operator | Feb 2026 |
| 10395 | Silver Oil & Gas Inc. | San Angelo, TX 76906 | Oil & Gas Operator | Feb 2026 |
| 10396 | Silver Pines Energy Corp. | Houston, TX 77005 | Oil & Gas Operator | Nov 2025 |
| 10397 | Silver Rock Energy, LLC | Terrell, TX 75160 | Oil Operator | Feb 2026 |
| 10398 | Silver Spike Energy Oper, LLC | Midland, TX 79710 | Oil & Gas Operator | Dec 2015 |
| 10399 | Silver Star Operating Co., LLC | Nada, TX 77460 | Gas Operator | Feb 2026 |
| 10400 | Silver Tusk Operating Co. LLC | Houston, TX 77056 | Oil & Gas Operator | Nov 2018 |