| 1 | P & F Operating, LLC | Dallas, TX 75206 | Oil & Gas Operator | Dec 2025 |
| 2 | Pampa Water Disposal, Inc. | Perryton, TX 79070 | Oil & Gas Operator | Dec 2025 |
| 3 | Pantera Energy Company | Amarillo, TX 79101 | Oil & Gas Operator | Dec 2025 |
| 4 | Parallel Energy LP | Tulsa, OK 74136 | Oil & Gas Operator | Dec 2015 |
| 5 | Petro-Haley | Borger, TX 79008 | Oil & Gas Operator | Dec 2025 |
| 6 | Petrolia Group, L.L.C. | Katy, TX 77449 | Oil & Gas Operator | Dec 2025 |
| 7 | PG-M International Operating,LLC | Borger, TX 79008 | Oil & Gas Operator | Dec 2025 |
| 8 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 9 | Pioneer Natural Res. USA, Inc. | Spring, TX 77389 | Oil & Gas Operator | Dec 2025 |
| 10 | Plains Production Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1995 |
| 11 | Planetierra Three Partnership | Sunray, TX 79086 | Oil & Gas Operator | Dec 2025 |
| 12 | Plumley, M. C. & Associates | Borger, TX 79008 | Oil & Gas Operator | Dec 2025 |
| 13 | Pogo Panhandle 2004, L.P. | Houston, TX 77002 | Oil & Gas Operator | Oct 2017 |
| 14 | Polaris Operating, LLC | Dallas, TX 75225 | Oil & Gas Operator | Dec 2025 |
| 15 | Ponderosa Petroleum, Inc. | Brownfield, TX 79316 | Oil & Gas Operator | Dec 2025 |
| 16 | Ponderosa TX Operating LLC | Stinnett, TX 79083 | Oil & Gas Operator | Dec 2025 |
| 17 | Pruett, Cecil | Borger, TX 79008 | Oil & Gas Operator | Aug 2003 |
| 18 | PXP Gulf Coast Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |