| 1 | P.O.&G. Operating, LLC | Houston, TX 77057 | Oil & Gas Operator | Oct 2025 |
| 2 | P.R.P., Inc. | | Oil & Gas Operator | Jun 2025 |
| 3 | Pacesetter Energy, Inc. | Flower Mound, TX 75028 | Oil & Gas Operator | May 2008 |
| 4 | Palmer Petroleum Inc. | Shreveport, LA 71105 | Oil & Gas Operator | Jun 2025 |
| 5 | Paloma Natural Gas, LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
| 6 | Par Minerals Corporation | Shreveport, LA 71101 | Oil & Gas Operator | Oct 2025 |
| 7 | Par-Co Drilling Inc. | | Oil Operator | Dec 2023 |
| 8 | Paradigm Energy-Mississippi, LLC | | Oil Operator | Jun 2025 |
| 9 | Parish Operating LLC | | Oil Operator | Jun 2025 |
| 10 | Parker & Parsley Dev LP | Irving, TX 75039-3745 | Oil & Gas Operator | Mar 2015 |
| 11 | Peak Energy Co Inc | | Oil & Gas Operator | Mar 1985 |
| 12 | Penn VIrginia Oil & Gas Corp | Houston, TX 77024 | Oil & Gas Operator | Dec 2023 |
| 13 | Pennzoil Expl & Prod Co -TX | | Oil & Gas Operator | May 1993 |
| 14 | Pennzoil Expl & Prod Co. -MS | | Oil Operator | Jan 1988 |
| 15 | Pennzoil Producing Company | | Oil & Gas Operator | Oct 1992 |
| 16 | Petra, Inc. | | Oil & Gas Operator | Apr 1987 |
| 17 | Petro Harvester Operating Company, LLC | | Oil & Gas Operator | Nov 2022 |
| 18 | Petro Producers Corporation | | Oil & Gas Operator | Mar 1993 |
| 19 | Petro-Hunt Corporation | Dallas, TX 75201 | Oil & Gas Operator | Jun 2003 |
| 20 | Petrocan, Inc. | | Oil & Gas Operator | Apr 1998 |
| 21 | Petrocorp Incorporated | Tulsa, OK 74170 | Oil & Gas Operator | Nov 2021 |
| 22 | Petroleum Development LLC | | Oil Operator | Jul 2018 |
| 23 | Petroleum Management, Inc. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Oct 2025 |
| 24 | Petrotx Operating, LLC | Kingwood, TX 77339 | Oil & Gas Operator | Oct 2025 |
| 25 | PF Operating Company | Wichita Falls, TX 76302 | Oil & Gas Operator | Aug 2003 |
| 26 | Phoenix Operating, Inc | | Oil & Gas Operator | Jul 2025 |
| 27 | Phoenix Petroleum Corp. | | Gas Operator | Aug 1985 |
| 28 | Pine Ridge Operating, L.P. | Waelder, TX 78959 | Oil & Gas Operator | Oct 2025 |
| 29 | Pistol Ridge Partners, LLC | | Oil & Gas Operator | Jun 2025 |
| 30 | Pita Oil & Gas, LLC | | Oil Operator | Jul 2004 |
| 31 | Pittman, Joe N. | | Oil & Gas Operator | Apr 1985 |
| 32 | Pitts, W. C. | | Oil Operator | Jan 1988 |
| 33 | Placid Oil Company | Houston, TX 77227 | Oil & Gas Operator | Mar 2008 |
| 34 | Pledger Operating Co. Inc. | | Oil & Gas Operator | Jul 2025 |
| 35 | PLS Operating Co, Inc. | | Oil & Gas Operator | Jul 1989 |
| 36 | Pompano Resource Operator LLC | | Oil & Gas Operator | Jun 2025 |
| 37 | Post Hole Drilling Company, LLC | | Oil & Gas Operator | Nov 2023 |
| 38 | Poydras Energy Partners, LLC | | Oil & Gas Operator | Dec 2021 |
| 39 | Premier Natural Resources II,LLC | Tulsa, OK 74105 | Oil & Gas Operator | Feb 2015 |
| 40 | Pride Energy Company | Tulsa, OK 74170 | Oil & Gas Operator | Oct 2025 |
| 41 | Primal Energy Corporation | The Woodlands, TX 77380 | Oil & Gas Operator | Oct 2025 |
| 42 | Professional Management Serv | | Oil Operator | Mar 1991 |
| 43 | Prospective Investment & Trading Co., LTD., The | Tulsa, OK 74170-2320 | Oil & Gas Operator | Apr 2014 |
| 44 | Pruet Production Co. | Jackson, MS 39201 | Oil & Gas Operator | Jul 2025 |
| 45 | Pursue Energy Corp | | Gas Operator | Sep 2016 |