| 1 | Pablo Energy II, LLC | Amarillo, TX 79105 | Oil & Gas Operator | Apr 2025 |
| 2 | Pactola Development Co | Tulsa, OK 74159 | Oil & Gas Operator | Sep 2004 |
| 3 | Pal Kids Inc | Coronado, CA 92118 | Oil & Gas Operator | Nov 2000 |
| 4 | Palm Oil & Gas Company | Sedona, AZ 86340 | Oil & Gas Operator | May 2025 |
| 5 | Pan Western Energy Corporation | Tulsa, OK 74114 | Oil & Gas Operator | Jul 2025 |
| 6 | Panenergy Services Inc | Houston, TX 77525 | Oil & Gas Operator | May 2001 |
| 7 | Pangaea Exploration Corp | Edmond, OK 73013 | Oil & Gas Operator | May 2019 |
| 8 | Paradigm Twenty LLC | Stillwater, OK 74074-1745 | Oil & Gas Operator | Apr 2025 |
| 9 | Parker & Parsley Dev Co | Midland, TX 79702 | Oil & Gas Operator | Mar 2015 |
| 10 | Parkway Petroleum, Inc. | Giddings, TX 78942 | Oil & Gas Operator | Jul 1997 |
| 11 | Patina Oil & Gas Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2016 |
| 12 | Patina Oklahoma Corp | Duncan, OK 73533-9523 | Oil & Gas Operator | Nov 2014 |
| 13 | Patterson Eddy L | Tulsa, OK 74133 | Oil & Gas Operator | Feb 2022 |
| 14 | PBT Enterprises Inc | Garber, OK 73738 | Oil & Gas Operator | May 2023 |
| 15 | Pearl Petroleum Inc | Lawton, OK 73501-5821 | Oil & Gas Operator | Jan 2014 |
| 16 | Pedestal Oil Company Inc | Oklahoma City, OK 73101-1522 | Oil & Gas Operator | May 2019 |
| 17 | Pegasus Energy Corporation | Oklahoma City, OK 73162 | Oil & Gas Operator | Mar 2015 |
| 18 | Penn Production Company Inc | | Oil & Gas Operator | Nov 2014 |
| 19 | Penn VIrginia MC Operating Co LLC | Houston, TX 77084-7213 | Oil & Gas Operator | Jan 2025 |
| 20 | Pepin Oil Co | Stillwater, OK 74076 | Oil & Gas Operator | Oct 2013 |
| 21 | Pepin Operating Company Inc | Stillwater, OK 74075-9535 | Oil & Gas Operator | May 2009 |
| 22 | Performance Petroleum Company LLC | Barnsdall, OK 74002 | Oil & Gas Operator | Apr 2025 |
| 23 | Perry Production Company Inc | Perry, OK 73077-0412 | Oil & Gas Operator | May 2006 |
| 24 | Petro Speed Inc | Norman, OK 73069-8116 | Oil & Gas Operator | Mar 2015 |
| 25 | Petro-Management Assoc., Inc. | Edmond, OK 73083-2346 | Oil & Gas Operator | Jun 2007 |
| 26 | Petroleum Management Prof Inc | Oklahoma City, OK 73120-1848 | Oil & Gas Operator | Apr 2009 |
| 27 | Petroleum Management, Inc. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Jul 2025 |
| 28 | Petroleum Reserve Corporation | Plymouth MTNG, PA 19462 | Oil & Gas Operator | May 2008 |
| 29 | Petroleum Resources Co | Wichita, KS 67206 | Oil & Gas Operator | May 2000 |
| 30 | Phillips Oil Operating Co | Enid, OK 73703-4921 | Oil & Gas Operator | May 2019 |
| 31 | Pinnacle Corporation (The) | Broken Arrow, OK 74012 | Oil & Gas Operator | Nov 2014 |
| 32 | Pioneer Resources Prod LP | Irving, TX 75039-3745 | Oil & Gas Operator | Feb 2005 |
| 33 | Plainsmen Energy LLC | Enid, OK 73703-5747 | Oil & Gas Operator | May 2025 |
| 34 | Pollok Energy LLC | Tulsa, OK 74159 | Oil & Gas Operator | May 2025 |
| 35 | Polo Operating Inc | Oklahoma City, OK 73112 | Oil & Gas Operator | May 2006 |
| 36 | Porter John B | Ketchum, OK 74349-0207 | Oil & Gas Operator | May 2000 |
| 37 | Porter John E "Gene" | Cushing, OK 74023 | Oil & Gas Operator | Aug 2000 |
| 38 | Post Oak Oil Company | Oklahoma City, OK 73112 | Oil & Gas Operator | Jul 2013 |
| 39 | Prime Energy Corp | Charleston, WV 25301-1707 | Oil & Gas Operator | Sep 2015 |
| 40 | Prime Operating Company | Houston, TX 77024 | Oil & Gas Operator | Jul 2025 |
| 41 | Primexx Operating Corporation | Dallas, TX 75206 | Oil & Gas Operator | Mar 2024 |
| 42 | Producers Oil Company | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2007 |
| 43 | Psa Inc | Chandler, OK 74834-4222 | Oil & Gas Operator | Apr 2025 |
| 44 | Pullers Oil Company LLC | Blackwell, OK 74631-9512 | Oil & Gas Operator | May 2025 |