| 101 | Shuler Drilling Co., Inc. | El Dorado, AR 71730 | Oil & Gas Operator | Feb 2024 |
| 102 | Sinclair And Sinclair, LLC | El Dorado, AR 71730 | Oil & Gas Operator | Feb 2024 |
| 103 | Sinclair Operating Company, LLC | El Dorado, AR 71730 | Oil & Gas Operator | Mar 2024 |
| 104 | Sinclair, J D Production | | Oil Operator | May 2014 |
| 105 | Sklar Exploration Company LLC | Shreveport, LA 71101 | Oil & Gas Operator | May 2024 |
| 106 | Smackover Drilling Company Inc | Shreveport, LA 71104 | Oil & Gas Operator | Feb 2024 |
| 107 | Smackover Producing Co | | Oil & Gas Operator | Aug 2023 |
| 108 | Smi Operating Company, LLC | Strong, AR 71765 | Oil & Gas Operator | Feb 2024 |
| 109 | Smith Operating & Management Co. | Shreveport, LA 71161 | Oil & Gas Operator | Dec 2022 |
| 110 | Southern Oil LLC | Smackover, AR 71762 | Oil & Gas Operator | May 2022 |
| 111 | St. Mary Land & Exploration Co | Denver, CO 80201 | Oil & Gas Operator | Jun 2010 |
| 112 | Story Oil And Gas Inc | Magnolia, AR 71753 | Oil & Gas Operator | Feb 2024 |
| 113 | The Ohio Oil Company | | Oil Operator | Feb 2024 |
| 114 | Thomas, Mark C Operating | | Oil Operator | Aug 2009 |
| 115 | TMR Exploration, Inc. | Bossier City, LA 71171 | Oil & Gas Operator | May 2024 |
| 116 | Turner, Jack L | El Dorado, AR 71730 | Oil Operator | Nov 2023 |
| 117 | Webb Brothers Oil Company | | Oil Operator | Jul 2013 |
| 118 | Webb Brothers Well Service, Inc. | El Dorado, AR 71730 | Oil & Gas Operator | Feb 2024 |
| 119 | Weiser-Brown Operating Company | Magnolia, AR 71754 | Oil & Gas Operator | May 2024 |