| 1 | P & M Drilling Company Inc | Depew, OK 74028 | Oil & Gas Operator | Dec 2004 |
| 2 | Pacific Enterprise Oil Co USA | Los Angeles, CA 90071-2005 | Oil & Gas Operator | Aug 2012 |
| 3 | Parker & Parsley Dev Co | Midland, TX 79702 | Oil & Gas Operator | Mar 2015 |
| 4 | Parrish Jr W F | Ardmore, OK 73401-2941 | Oil & Gas Operator | Feb 2025 |
| 5 | Pennzoil Petroleum Company | Houston, TX 77252 | Oil & Gas Operator | Nov 1999 |
| 6 | Permian West Corp. | Odessa, TX 79762 | Oil & Gas Operator | Oct 2025 |
| 7 | Petro Warrior LLC | Wichita, KS 67206 | Oil & Gas Operator | Jun 2025 |
| 8 | Petrocorp Incorporated | Tulsa, OK 74170 | Oil & Gas Operator | Nov 2021 |
| 9 | Petroleum Exploration Company LTD LP | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2025 |
| 10 | Pickelsimer Kenny | Wilson, OK 73463-6502 | Oil & Gas Operator | Aug 2014 |
| 11 | Pletcher Oil Limited Liability Company | Ardmore, OK 73401 | Oil & Gas Operator | Jun 2025 |
| 12 | Positive Energy LLC | Ada, OK 74820 | Oil & Gas Operator | Jun 2025 |
| 13 | Pride Energy Company | Tulsa, OK 74170 | Oil & Gas Operator | Oct 2025 |
| 14 | Primary Natural Resources Inc. | Tulsa, OK 74136-6351 | Oil & Gas Operator | Mar 2023 |
| 15 | Primexx Operating Corporation | Dallas, TX 75206 | Oil & Gas Operator | Mar 2024 |
| 16 | Prospective Investment & Trading | Scottsdale, AZ 85261-4190 | Oil & Gas Operator | Jun 2016 |
| 17 | Psa Inc | Chandler, OK 74834-4222 | Oil & Gas Operator | Jun 2025 |