| 1 | CCM Enterprises, Inc | | Oil & Gas Operator | Oct 1985 |
| 2 | Delphi Oil Inc. | | Oil & Gas Operator | Jan 2026 |
| 3 | Franks Petroleum Inc. | | Oil & Gas Operator | Nov 1994 |
| 4 | Fritz Operating Co. | | Oil & Gas Operator | Jun 1990 |
| 5 | Kadane & Sons | | Oil & Gas Operator | May 1978 |
| 6 | Marathon Oil Company | Houston, TX 77252 | Oil & Gas Operator | Feb 2026 |
| 7 | Moon-Hines-Tigrett Operating Co., Inc. | | Oil & Gas Operator | Jan 2026 |
| 8 | Morris Operating Co | Lovington, NM 88260 | Oil & Gas Operator | Apr 2026 |
| 9 | Norton Oil Co. | | Oil & Gas Operator | Jun 1984 |
| 10 | P.R.P., Inc. | | Oil & Gas Operator | Jan 2026 |
| 11 | Par Minerals Corporation | Shreveport, LA 71101 | Oil & Gas Operator | Apr 2026 |
| 12 | Penn VIrginia Oil & Gas Corp | Houston, TX 77024 | Oil & Gas Operator | Dec 2023 |
| 13 | Petrotx Operating, LLC | Kingwood, TX 77339 | Oil & Gas Operator | Apr 2026 |
| 14 | Pistol Ridge Partners, LLC | | Oil & Gas Operator | Jan 2026 |
| 15 | Pruet Production Co. | Jackson, MS 39201 | Oil & Gas Operator | Feb 2026 |
| 16 | S. Lavon Evans Jr Inc, Et Al | | Oil & Gas Operator | Jan 2010 |
| 17 | S. Lavon Evans Jr., Operating Co., Inc. | | Oil & Gas Operator | Aug 2014 |
| 18 | Scorpion Oil & Gas, LLC | Houston, TX 77036 | Oil & Gas Operator | May 2025 |
| 19 | Skye MS, LLC | | Oil & Gas Operator | Feb 2026 |
| 20 | Southern Natural Gas Company LLC | | Oil & Gas Operator | Nov 2024 |
| 21 | Spooner Petroleum Company | | Oil & Gas Operator | Jan 2026 |
| 22 | Tri-Quest Resources | | Oil & Gas Operator | Feb 1995 |
| 23 | Trinity Oil & Gas Dev Inc | | Oil & Gas Operator | Jun 1994 |
| 24 | Ventex Operating Corp. | Addison, TX 75001 | Oil & Gas Operator | Apr 2026 |
| 25 | Veron E.Faulconer Inc | | Oil & Gas Operator | Nov 1989 |