| 1 | Bowman & Cains Exploration, LLC | | Gas Operator | Sep 2020 |
| 2 | Fort Operating Company | Fort Smith, AR 72923 | Gas Operator | Nov 2018 |
| 3 | Hanna Oil And Gas Company | Fort Smith, AR 72901 | Oil & Gas Operator | Nov 2024 |
| 4 | Hogback Exploration Inc | Fort Smith, AR 72916 | Oil & Gas Operator | Nov 2024 |
| 5 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Mar 2025 |
| 6 | Lime Rock Resources III-A, L.P. | Houston, TX 77002 | Oil & Gas Operator | Jan 2025 |
| 7 | Lyons & Lyons Inc | Tulsa, OK 74119 | Oil & Gas Operator | Nov 2024 |
| 8 | Oxley Petroleum Co | Oklahoma City, OK 73118-1044 | Oil & Gas Operator | Sep 2017 |
| 9 | Philmon, Doyle | Paris, AR 72855 | Gas Operator | Oct 2024 |
| 10 | Ross Explorations, Inc | Fort Smith, AR 72903 | Gas Operator | Oct 2024 |
| 11 | Sagely, Floyd E Properties, LTD | Fort Smith, AR 72917-0308 | Gas Operator | Jan 2015 |
| 12 | Seeco | | Gas Operator | Mar 2016 |
| 13 | Seeco, Inc. | | Gas Operator | Mar 2015 |
| 14 | Stephens Production Company | The Woodlands, TX 77381 | Oil & Gas Operator | Dec 2024 |
| 15 | Weiser-Brown Operating Company | Magnolia, AR 71754 | Oil & Gas Operator | Mar 2025 |
| 16 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | Mar 2025 |
| 17 | Yale Oil Association, Inc. | Oklahoma City, OK 73105 | Oil & Gas Operator | Dec 2024 |