| 1 | Palo Petroleum, Inc. | Dallas, TX 75360 | Oil & Gas Operator | Sep 2025 |
| 2 | Paradis Investments, L.L.C. | Bellaire, TX 77401 | Oil Operator | Jun 2020 |
| 3 | Parallel Petroleum Corporation | Midland, TX 79702 | Oil & Gas Operator | Jan 2010 |
| 4 | Parker Hannifin Corporation | Ravenna, OH 44266 | Oil & Gas Operator | Dec 2024 |
| 5 | Phillips, Bob | Weatherford, TX 76086 | Oil & Gas Operator | Nov 2019 |
| 6 | Plains Production Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1995 |
| 7 | Plover Production Company | Fort Worth, TX 76109 | Oil & Gas Operator | Jul 2006 |
| 8 | Premier Minerals, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Sep 2025 |
| 9 | Premier Natural Resources II,LLC | Tulsa, OK 74105 | Oil & Gas Operator | Feb 2015 |
| 10 | Premier Oil & Gas LLC | Blanchard, OK 73010-2010 | Oil Operator | Dec 2022 |
| 11 | Proline Energy Resources Inc | Sugar Land, TX 77479 | Oil & Gas Operator | Sep 2025 |
| 12 | Proven Reserves Management, Inc. | Dallas, TX 75370 | Oil & Gas Operator | May 2025 |
| 13 | PTT Premier Trading And Tran LLC | Perkins, OK 74059 | Gas Operator | Sep 2025 |