| 101 | Orx Resources, L.L.C. | Houston, TX 77067 | Oil & Gas Operator | Dec 2025 |
| 102 | Pennington Oil & Gas Int, LLC | | Oil & Gas Operator | Dec 2024 |
| 103 | Pennington Operating Company, LLC | | Oil & Gas Operator | Jul 2020 |
| 104 | Petro Harvester Operating Company, LLC | | Oil & Gas Operator | Nov 2022 |
| 105 | Petro-Lewis Corp. | | Oil & Gas Operator | Feb 1994 |
| 106 | Philip B. Berry Oper Co., Inc. | | Oil & Gas Operator | Jun 1990 |
| 107 | Pilot Resources, Inc. | | Oil & Gas Operator | May 2013 |
| 108 | Port Hudson Operating Company | | Oil & Gas Operator | Nov 2024 |
| 109 | Renaissance Petroleum Co LLC | Houston, TX 77058 | Oil & Gas Operator | Nov 2011 |
| 110 | Resource Securities Corp. | | Oil & Gas Operator | Mar 2005 |
| 111 | Rockleigh K. Thurman | | Oil & Gas Operator | Jan 2025 |
| 112 | Sanchez Oil & Gas Corporation | Houston, TX 77056 | Oil & Gas Operator | Dec 2025 |
| 113 | Senior G&A Operating Co Inc | | Oil & Gas Operator | Nov 1991 |
| 114 | Shell Oil Co. | Houston, TX 77001 | Oil & Gas Operator | Jun 1985 |
| 115 | Shell Western E&P Inc. | Houston, TX 77001 | Oil & Gas Operator | May 2011 |
| 116 | Sheridan Energy,Inc. | Houston, TX 77002 | Oil & Gas Operator | Feb 2000 |
| 117 | South La. Production Co., Inc. | | Oil & Gas Operator | Jun 1982 |
| 118 | South Oak Production Company | | Oil & Gas Operator | Jun 2010 |
| 119 | Stone Petroleum Corporation | | Oil & Gas Operator | Dec 1996 |
| 120 | Temex Energy Inc | Oklahoma City, OK 73101 | Oil & Gas Operator | Feb 2002 |
| 121 | Texaco Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2017 |
| 122 | Texas Pacific Oil Co. | | Oil & Gas Operator | Dec 1980 |
| 123 | TGX Corporation | Houston, TX 77002 | Oil & Gas Operator | Sep 2004 |
| 124 | Thunderstone Exploration, Inc. | | Oil & Gas Operator | Oct 2006 |
| 125 | Triumph Energy Inc-P B Berry | | Oil & Gas Operator | Jun 1986 |
| 126 | Union Texas Petroleum Corp | Houston, TX 77252-2120 | Oil & Gas Operator | Dec 2014 |
| 127 | United Gas Pipe Line Co. | | Oil Operator | Aug 1993 |
| 128 | University Field Management LLC | | Oil Operator | Nov 2024 |
| 129 | Vintage Petroleum, Inc. | Houston, TX 77046 | Oil & Gas Operator | Oct 2025 |
| 130 | White Marlin Operating Company, LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2025 |
| 131 | White River Operating LLC | Gilmer, TX 75644 | Oil & Gas Operator | Oct 2025 |
| 132 | Zinn Petroleum Co. | Houston, TX 77024 | Oil & Gas Operator | Nov 2021 |