| 1 | Paleo, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Jun 2025 |
| 2 | Panadero Oil Company | Dallas, TX 75206 | Oil & Gas Operator | Apr 2002 |
| 3 | Panenergy Services Inc | Houston, TX 77525 | Oil & Gas Operator | May 2001 |
| 4 | Paradigm Petroleum Corporation | Abilene, TX 79605 | Oil & Gas Operator | Jun 2025 |
| 5 | Park Avenue Exploration Corp | Oklahoma City, OK 73102-5604 | Oil & Gas Operator | Sep 2011 |
| 6 | Parkway Petroleum, Inc. | Giddings, TX 78942 | Oil & Gas Operator | Jul 1997 |
| 7 | Parsons Engineering Corporation | Tulsa, OK 74137-7505 | Oil & Gas Operator | Oct 2017 |
| 8 | Partners Oil Company | Tulsa, OK 74135 | Oil & Gas Operator | Aug 1995 |
| 9 | Parwest Land Exploration, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2025 |
| 10 | Payrock Energy LLC | Oklahoma City, OK 73134-2612 | Oil & Gas Operator | Feb 2023 |
| 11 | Penner Energy Inc | Oklahoma City, OK 73120-1930 | Oil & Gas Operator | Mar 2025 |
| 12 | Penntex Resources, L.P. | State College, PA 16803 | Oil & Gas Operator | Mar 2016 |
| 13 | Petrocorp Incorporated | Tulsa, OK 74170 | Oil & Gas Operator | Nov 2021 |
| 14 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
| 15 | Petroleum Reserve Corporation | Plymouth MTNG, PA 19462 | Oil & Gas Operator | May 2008 |
| 16 | Petroleum Resources Co | Wichita, KS 67206 | Oil & Gas Operator | May 2000 |
| 17 | Phillips Oil Operating Co | Enid, OK 73703-4921 | Oil & Gas Operator | May 2019 |
| 18 | Phoenix Petrocorp, Inc. | McKinney, TX 75070 | Oil & Gas Operator | Mar 2025 |
| 19 | Pices Energy Production Co. | Alva, OK 73717-9512 | Oil & Gas Operator | Apr 2014 |
| 20 | Pike Oil & Gas Inc | Pittsfield, IL 62363 | Oil & Gas Operator | Oct 2020 |
| 21 | Plainsmen Energy LLC | Enid, OK 73703-5747 | Oil & Gas Operator | Mar 2025 |
| 22 | Pollok Energy LLC | Tulsa, OK 74159 | Oil & Gas Operator | Mar 2025 |
| 23 | Pool, Lloyd Operating | Sandia Park, NM 87047 | Gas Operator | Dec 2013 |
| 24 | Priam Operating Company | Tulsa, OK 74114 | Oil & Gas Operator | Jul 2022 |
| 25 | Pride Energy Company | Tulsa, OK 74170 | Oil & Gas Operator | Jun 2025 |
| 26 | Primary Natural Resources Inc. | Tulsa, OK 74136-6351 | Oil & Gas Operator | Mar 2023 |
| 27 | Prime Operating Company | Houston, TX 77024 | Oil & Gas Operator | Jun 2025 |
| 28 | Primexx Operating Corporation | Dallas, TX 75206 | Oil & Gas Operator | Mar 2024 |
| 29 | Protege Energy LLC | Tulsa, OK 74135 | Oil & Gas Operator | Jan 2018 |
| 30 | Proven Reserves Management, Inc. | Dallas, TX 75370 | Oil & Gas Operator | Feb 2025 |
| 31 | PXP Gulf Coast Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 32 | Pyramid Oil Of America, Inc. | Nichols Hill, OK 73116 | Oil & Gas Operator | Feb 2025 |