| 1 | P-R-O Management, Inc. | Dallas, TX 75240 | Oil & Gas Operator | May 2024 |
| 2 | Palisades Asset Holding Co LLC | Dallas, TX 75201 | Oil & Gas Operator | Aug 2017 |
| 3 | Par Minerals Corporation | Shreveport, LA 71101 | Oil & Gas Operator | May 2024 |
| 4 | Paschal, Phil A. | Kilgore, TX 75662 | Oil Operator | Aug 2021 |
| 5 | Patrick Pet. Corp. Of Michigan | Houston, TX 77227 | Oil & Gas Operator | Aug 1995 |
| 6 | Payola Productions | Athens, TX 75751 | Oil & Gas Operator | Nov 1994 |
| 7 | Perryman Operating Company | Athens, TX 75751 | Oil & Gas Operator | May 2024 |
| 8 | Petralis Energy Resources, LLC | Kilgore, TX 75663 | Oil & Gas Operator | May 2024 |
| 9 | Phillips, Jack L. | Gladewater, TX 75647 | Oil & Gas Operator | Dec 1997 |
| 10 | Phillips, Jack L. Co. | Gladewater, TX 75647 | Oil & Gas Operator | May 2024 |
| 11 | Pickens Company, Inc., The | Dallas, TX 75225 | Oil & Gas Operator | Feb 2024 |
| 12 | Pinnacle Operating Company, Inc. | Shreveport, LA 71135 | Oil & Gas Operator | May 2024 |
| 13 | Plains Marketing LP | Cushing, OK 74023 | Oil & Gas Operator | Dec 2022 |
| 14 | Platform Operating, LLC | Midland, TX 79702 | Oil & Gas Operator | May 2024 |
| 15 | Potato Creek, L.L.C. | Edna, KS 67342 | Oil & Gas Operator | Dec 2019 |
| 16 | Powell-McCarroll Partnership | Sachse, TX 75048 | Oil & Gas Operator | May 2024 |
| 17 | Publishers Petroleum | Dallas, TX 75219 | Oil & Gas Operator | Aug 2003 |
| 18 | PXP Gulf Coast Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |