| 1 | P & H Oil & Gas Inc | Stroud, OK 74079 | Oil & Gas Operator | Mar 2025 |
| 2 | Pace Exploration LLC | Tulsa, OK 74133 | Oil & Gas Operator | Feb 2025 |
| 3 | Paleo, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Jun 2025 |
| 4 | Palm Operating LLC | Oklahoma City, OK 73106-5646 | Oil & Gas Operator | Nov 2019 |
| 5 | Pan Western Energy Corporation | Tulsa, OK 74114 | Oil & Gas Operator | Jun 2025 |
| 6 | Pantera Energy Company | Amarillo, TX 79101 | Oil & Gas Operator | Jun 2025 |
| 7 | Paradigm Twenty LLC | Stillwater, OK 74074-1745 | Oil & Gas Operator | Feb 2025 |
| 8 | Park Avenue Exploration Corp | Oklahoma City, OK 73102-5604 | Oil & Gas Operator | Sep 2011 |
| 9 | Parkway Petroleum, Inc. | Giddings, TX 78942 | Oil & Gas Operator | Jul 1997 |
| 10 | Parsons Engineering Corporation | Tulsa, OK 74137-7505 | Oil & Gas Operator | Oct 2017 |
| 11 | Parwest Land Exploration, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2025 |
| 12 | Patco Investments Inc | Seminole, OK 74868 | Oil Operator | Nov 2007 |
| 13 | Patina Oil & Gas Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2016 |
| 14 | Patina Oklahoma Corp | Duncan, OK 73533-9523 | Oil & Gas Operator | Nov 2014 |
| 15 | Paul Gillham Oil Company | Maud, OK 74854 | Oil & Gas Operator | Feb 2025 |
| 16 | PDG Production LLC | Stroud, OK 74079 | Oil & Gas Operator | Jan 2025 |
| 17 | Pelican Production Company | New Orleans, LA 70130-2477 | Oil & Gas Operator | Mar 2014 |
| 18 | Penn Production Company Inc | | Oil & Gas Operator | Nov 2014 |
| 19 | Pepin Oil Co | Stillwater, OK 74076 | Oil & Gas Operator | Oct 2013 |
| 20 | Peterson Charles E SR | Stroud, OK 74079-9718 | Oil & Gas Operator | Feb 2025 |
| 21 | Petro Warrior LLC | Wichita, KS 67206 | Oil & Gas Operator | Feb 2025 |
| 22 | Petro-Management Assoc., Inc. | Edmond, OK 73083-2346 | Oil & Gas Operator | Jun 2007 |
| 23 | Petrodudes | Crescent, OK 73028 | Oil & Gas Operator | Aug 2024 |
| 24 | Petroflow Energy Corporation | Tulsa, OK 74119-5405 | Oil & Gas Operator | Oct 2016 |
| 25 | Petroleum Capital, L.C. | Dallas, TX 75367 | Oil & Gas Operator | Jun 2025 |
| 26 | Petroleum Management, Inc. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Jun 2025 |
| 27 | Petroleum Production MGMT., Inc. | Kansas City, MO 64112 | Oil & Gas Operator | Jun 2025 |
| 28 | Petroleum Properties Co Inc | Tulsa, OK 74132-4010 | Oil & Gas Operator | Sep 2012 |
| 29 | Petroleum Properties MGMT. Co. | Oklahoma City, OK 73118 | Oil & Gas Operator | Dec 2014 |
| 30 | Petroleum Resources Co | Wichita, KS 67206 | Oil & Gas Operator | May 2000 |
| 31 | Petrolia Drilling Corporation | | Oil & Gas Operator | Jul 2003 |
| 32 | Phillips Oil Operating Co | Enid, OK 73703-4921 | Oil & Gas Operator | May 2019 |
| 33 | Phoenix Petrocorp, Inc. | McKinney, TX 75070 | Oil & Gas Operator | Mar 2025 |
| 34 | Pinnacle Corporation (The) | Broken Arrow, OK 74012 | Oil & Gas Operator | Nov 2014 |
| 35 | Plains Oil & Gas | Cushing, OK 74023-4819 | Oil & Gas Operator | Jan 2019 |
| 36 | PMD Oil Recovery LLC | Oklahoma City, OK 73129 | Oil & Gas Operator | Feb 2025 |
| 37 | Power Fuel Producers Inc | Keller, TX 76244-1059 | Oil & Gas Operator | Sep 2001 |
| 38 | Powerline Energy Corporation | Arlington, TX 76015 | Oil & Gas Operator | Jun 2025 |
| 39 | PRDJ Cockrum Enterprises Inc | Okemah, OK 74859-5126 | Oil & Gas Operator | Mar 2022 |
| 40 | Prime Energy Corp | Charleston, WV 25301-1707-1707 | Oil & Gas Operator | Sep 2015 |
| 41 | Prime Operating Company | Houston, TX 77024 | Oil & Gas Operator | Jun 2025 |
| 42 | Primexx Operating Corporation | Dallas, TX 75206 | Oil & Gas Operator | Mar 2024 |
| 43 | Pryor, VIctor W., Jr. | Holdenville, OK 74848 | Oil & Gas Operator | Apr 2017 |
| 44 | Psa Inc | Chandler, OK 74834-4222 | Oil & Gas Operator | Feb 2025 |
| 45 | Psec Inc | Tulsa, OK 74102-0871 | Oil & Gas Operator | Dec 2016 |
| 46 | Pullers Oil Company LLC | Blackwell, OK 74631-9512 | Oil & Gas Operator | Mar 2025 |
| 47 | Pumping Services Inc | Seminole, OK 74868-2421 | Oil & Gas Operator | Feb 2023 |