| 1 | P & C Oil & Gas, Inc. | Linn, WV 26384 | Oil & Gas Operator | Dec 2021 |
| 2 | P & M Oil Company | Hays, KS 67601 | Oil & Gas Operator | Nov 2025 |
| 3 | P. G. Oil & Gas, LLC | Clarksburg, WV 26302-2512 | Oil & Gas Operator | Dec 2021 |
| 4 | Paleo, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Feb 2026 |
| 5 | Patchwork Oil & Gas LLC | Davisville, WV 26142 | Oil & Gas Operator | Dec 2021 |
| 6 | Penn Jersey Oil & Gas Associates | | Oil & Gas Operator | Sep 2016 |
| 7 | Pentex Energy, Inc. | Midland, TX 79701 | Oil & Gas Operator | Dec 2003 |
| 8 | Pethtel Oil & Gas | | Oil & Gas Operator | Dec 2005 |
| 9 | Petroleum Development Corporation | Denver, CO 80202 | Oil & Gas Operator | Dec 2017 |
| 10 | Petroleum Resources, LLC | | Oil & Gas Operator | Dec 2021 |
| 11 | Petroleum Service Partners, Inc. | Indiana, PA 15701-0000 | Oil & Gas Operator | Dec 2021 |
| 12 | Pillar Energy, LLC | Charleston, WV 25312-5987 | Oil & Gas Operator | Dec 2024 |
| 13 | Pin Oak Operating, LLC | | Gas Operator | Dec 2021 |
| 14 | Postrock Eastern Production LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Oct 2020 |
| 15 | Powell, Clarence | | Oil & Gas Operator | Sep 2021 |
| 16 | Prior, Ferrell L | | Oil & Gas Operator | Dec 2021 |
| 17 | Professional Oilfield Services, Inc. | Byesville, OH 43723 | Oil & Gas Operator | Dec 2021 |
| 18 | Pruitt, Cecil, Jr. | Chantilly, VA 22021-2105 | Oil & Gas Operator | Dec 2014 |