| 10101 | Sheets Exploration Co., Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2016 |
| 10102 | Sheets, P. A. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 1994 |
| 10103 | Shefts & Shefts, Inc. | Luling, TX 78648 | Oil & Gas Operator | Apr 2025 |
| 10104 | Shelby Boswell Operator, LLC | Dallas, TX 75225 | Oil & Gas Operator | Apr 2025 |
| 10105 | Shelby Operating Company | Dallas, TX 75205 | Oil & Gas Operator | Apr 2025 |
| 10106 | Shelby Operating, Inc. | Flower Mound, TX 75028 | Oil & Gas Operator | Jul 1997 |
| 10107 | Shelby Production Co. | Kilgore, TX 75663 | Oil & Gas Operator | Mar 2009 |
| 10108 | Shelby Production, Inc. | Kilgore, TX 75663 | Gas Operator | Apr 2025 |
| 10109 | Shelby, Michael H. | Shreveport, LA 71101 | Oil & Gas Operator | Apr 2025 |
| 10110 | Shelco | Maysville, MO 64469 | Oil & Gas Operator | May 2021 |
| 10111 | Sheldon Resources, L.P. | Bryan, TX 77805 | Oil & Gas Operator | Apr 2025 |
| 10112 | Shell Frontier Oil & Gas Inc. | Houston, TX 77001 | Oil & Gas Operator | Feb 1997 |
| 10113 | Shell Land & Energy Co. | Houston, TX 77001 | Oil & Gas Operator | Feb 1997 |
| 10114 | Shell Offshore Inc. | New Orleans, LA 70161 | Oil & Gas Operator | Jan 2008 |
| 10115 | Shell Onshore Ventures Inc | Houston, TX 77210 | Gas Operator | Jun 2002 |
| 10116 | Shell Trading Us Company | Houston, TX 77210 | Oil & Gas Operator | Jan 2025 |
| 10117 | Shell Western E&P | Houston, TX 77001 | Oil & Gas Operator | Apr 2025 |
| 10118 | Shell Western E&P Inc. | Houston, TX 77001 | Oil & Gas Operator | May 2011 |
| 10119 | Shelley, Richard W | Wichita Falls, TX 76310 | Oil & Gas Operator | Jun 2015 |
| 10120 | Shelton, Charles M. | Baytown, TX 77521 | Oil & Gas Operator | Aug 2003 |
| 10121 | Shenandoah Oil, Inc. (I) | Midland, TX 79710 | Oil & Gas Operator | Apr 1996 |
| 10122 | Shenandoah Petroleum Corporation | Midland, TX 79705 | Oil & Gas Operator | Apr 2025 |
| 10123 | Shenandoah Resources LLC | Houston, TX 77086 | Oil & Gas Operator | Apr 2020 |
| 10124 | Sheneeda Energy, LLC | O Brien, TX 79539 | Oil Operator | Apr 2025 |
| 10125 | Shepperd, William M. | Houston, TX 77279 | Oil & Gas Operator | Sep 2012 |
| 10126 | Sheridan Energy,Inc. | Houston, TX 77002 | Oil & Gas Operator | Feb 2000 |
| 10127 | Sheridan Production Co III, LLC | Houston, TX 77056 | Oil & Gas Operator | Apr 2025 |
| 10128 | Sheridan Production Company, LLC | Houston, TX 77056 | Oil & Gas Operator | Jan 2025 |
| 10129 | Sherley, O. C. | Megargel, TX 76370 | Oil & Gas Operator | Aug 2003 |
| 10130 | Sherman Oil Company LLC | Wichita Falls, TX 76308 | Oil Operator | Apr 2025 |
| 10131 | Sherman, L. B. | Early, TX 76803 | Oil & Gas Operator | Jun 1998 |
| 10132 | Shidler, Mark L., Inc. | Houston, TX 77055 | Oil & Gas Operator | Apr 2025 |
| 10133 | Shield Operating Co. | Georgetown, TX 78627 | Oil & Gas Operator | Aug 2003 |
| 10134 | Shield Petroleum | College Sta, TX 77845 | Oil & Gas Operator | Apr 2025 |
| 10135 | Shifflett Operating Company | Snyder, TX 79550 | Oil & Gas Operator | Apr 2025 |
| 10136 | Shiloh Oil Company LLC | Williston, FL 32696 | Oil & Gas Operator | Apr 2025 |
| 10137 | Shiner Exploration, LLC | Houston, TX 77091 | Oil & Gas Operator | Apr 2025 |
| 10138 | Shines'S Oil Co. | Jacksboro, TX 76458 | Oil & Gas Operator | Oct 2009 |
| 10139 | Shinnery Oil Company, Inc. | Midland, TX 79701 | Oil & Gas Operator | Apr 2025 |
| 10140 | Shirley, B. J. | Lawn, TX 79530 | Oil & Gas Operator | Mar 2008 |
| 10141 | Shivers, Linward, Operator | Shreveport, LA 71161 | Oil & Gas Operator | Sep 1997 |
| 10142 | SHL Operating | Lubbock, TX 79416 | Oil & Gas Operator | Apr 2025 |
| 10143 | Shoco Production LLC | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2025 |
| 10144 | Shoco Production, L.P. | Kilgore, TX 75663 | Oil & Gas Operator | May 2020 |
| 10145 | Shootin Star Oil, L.L.C. | Natalia, TX 78059 | Oil Operator | Apr 2025 |
| 10146 | Shore Production Co. | Longview, TX 75604 | Oil & Gas Operator | Aug 2005 |
| 10147 | Shoreham Oil & Gas Company, Inc. | Katy, TX 77492 | Oil & Gas Operator | Apr 2025 |
| 10148 | Shoreline Energy Partners, LLC | Chandler, AZ 85249 | Oil Operator | May 2011 |
| 10149 | Shoreline Petroleum Corp. | Channelview, TX 77530 | Oil & Gas Operator | Sep 2003 |
| 10150 | Shoreline Production Serv., Inc. | Rockport, TX 78381 | Oil & Gas Operator | Apr 2002 |
| 10151 | Short Oil Co | Luling, TX 78648 | Oil & Gas Operator | Jan 2025 |
| 10152 | Shoshone Oil Company | Dallas, TX 75244 | Oil & Gas Operator | May 1994 |
| 10153 | Showdown Energy Corporation | Dallas, TX 75230 | Oil & Gas Operator | Aug 2003 |
| 10154 | Showdown Operating, Inc. | Dallas, TX 75230 | Oil & Gas Operator | May 1996 |
| 10155 | Showhorn Holding Co., L.L.C. | Normangee, TX 77871 | Oil Operator | Apr 2025 |
| 10156 | SHS Operating Company | Shreveport, LA 71149 | Oil & Gas Operator | Jan 2025 |
| 10157 | Shubuta Oil Corporation | Houston, TX 77056 | Oil & Gas Operator | Sep 1998 |
| 10158 | Shuler Drilling Co., Inc. | El Dorado, AR 71730 | Oil & Gas Operator | Jan 2025 |
| 10159 | Shumate, Jess | Brookesmith, TX 76827 | Oil Operator | Jun 2006 |
| 10160 | SHWJ Oil & Gas Co., Inc. | Oil City, LA 71061 | Oil Operator | Apr 2025 |
| 10161 | Siana Oil & Gas | Conroe, TX 77305 | Oil & Gas Operator | Apr 2025 |
| 10162 | Sideline Oil & Gas, L.P. | Friendswood, TX 77549 | Oil Operator | Apr 2025 |
| 10163 | Sidwell Oil & Gas, Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Sep 2014 |
| 10164 | Sidwell Operating Company, L.P. | Amarillo, TX 79105 | Oil & Gas Operator | Apr 2025 |
| 10165 | Siegfried R H Inc | Tulsa, OK 74104 | Oil & Gas Operator | Mar 2008 |
| 10166 | Siempre Energy Operating, LLC | Houston, TX 77094 | Oil Operator | Apr 2025 |
| 10167 | Sien Operating Company, LLC | San Antonio, TX 78209 | Oil Operator | May 2023 |
| 10168 | Sierra Exploration Company | San Antonio, TX 78209 | Oil & Gas Operator | Mar 2008 |
| 10169 | Sierra Group, L.L.C. | San Angelo, TX 76904 | Oil & Gas Operator | Apr 2025 |
| 10170 | Sierra Lima Oil & Gas, LLC | Abilene, TX 79604 | Oil & Gas Operator | Apr 2025 |
| 10171 | Sierra Madre Natural Res., LLC | Dallas, TX 75225 | Oil & Gas Operator | Dec 2016 |
| 10172 | Sierra Minerals, Inc. | Rockdale, TX 76567 | Oil & Gas Operator | Apr 2025 |
| 10173 | Sierra Oil Company | Fort Worth, TX 76106 | Oil & Gas Operator | Apr 2025 |
| 10174 | Sierra Resources, Inc. | Oklahoma City, OK 73142 | Oil & Gas Operator | Dec 2024 |
| 10175 | Sierra Resources, LLC | Houston, TX 77219 | Oil & Gas Operator | Aug 2021 |
| 10176 | Siete Oil And Gas Corporation | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 10177 | Sigma Energy & Explor., Co LLC | Ozona, TX 76943 | Oil & Gas Operator | Feb 2010 |
| 10178 | Sigma Exploration Corp., The | Dallas, TX 75230 | Oil & Gas Operator | Sep 1998 |
| 10179 | Sigma Oper & Develop Co., Inc. | Midland, TX 79701 | Oil & Gas Operator | Apr 2025 |
| 10180 | Sigmon Construction Co., Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2025 |
| 10181 | Sigmon Production Company, Inc. | Longview, TX 75608 | Oil & Gas Operator | Dec 2013 |
| 10182 | Signal Oil And Gas Company | Colleyville, TX 76034 | Oil & Gas Operator | Apr 2025 |
| 10183 | Signal Oil Company, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2025 |
| 10184 | Sikes Operating, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Jun 2003 |
| 10185 | Sikes, Arlas M. | Brownwood, TX 76801 | Oil & Gas Operator | May 2000 |
| 10186 | Siltstone Resources Op II, LLC | Wilmington, DE 19801 | Oil & Gas Operator | Apr 2025 |
| 10187 | Silver Creek Oil | Merkel, TX 79536 | Oil & Gas Operator | Aug 2003 |
| 10188 | Silver Creek Oil & Gas, LLC | Flower Mound, TX 75022 | Oil & Gas Operator | Apr 2025 |
| 10189 | Silver Creek Permian Op Co, LLC | Irving, TX 75038 | Oil & Gas Operator | Apr 2023 |
| 10190 | Silver Creek Resources, LLC | Irving, TX 75038 | Oil & Gas Operator | Apr 2017 |
| 10191 | Silver Cross Energy Partners LLC | Richmond, TX 77469 | Oil & Gas Operator | Dec 2024 |
| 10192 | Silver Fox Oil & Gas LLC | Hebbronville, TX 78361 | Oil & Gas Operator | Apr 2025 |
| 10193 | Silver Hill Energy Operating, LLC | Dallas, TX 75201 | Oil & Gas Operator | Apr 2025 |
| 10194 | Silver Hill Energy Partners, LLC | Dallas, TX 75219 | Oil & Gas Operator | Feb 2017 |
| 10195 | Silver Oak Energy, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2016 |
| 10196 | Silver Oak Operating, Inc. | Longview, TX 75601 | Oil & Gas Operator | Dec 2009 |
| 10197 | Silver Oak Operating, LLC | Longview, TX 75604 | Oil & Gas Operator | Apr 2025 |
| 10198 | Silver Oil & Gas Inc. | San Angelo, TX 76906 | Oil & Gas Operator | Apr 2025 |
| 10199 | Silver Pines Energy Corp. | Houston, TX 77005 | Oil & Gas Operator | Jan 2025 |
| 10200 | Silver Spike Energy Oper, LLC | Midland, TX 79710 | Oil & Gas Operator | Dec 2015 |