| 1 | P I C Inc | Ponca City, OK 74602 | Oil & Gas Operator | Jan 2013 |
| 2 | Pace Exploration LLC | Tulsa, OK 74133 | Oil & Gas Operator | May 2025 |
| 3 | Palm Oil & Gas Company | Sedona, AZ 86340 | Oil & Gas Operator | Jul 2025 |
| 4 | Pan Western Energy Corporation | Tulsa, OK 74114 | Oil & Gas Operator | Oct 2025 |
| 5 | Paradigm Twenty LLC | Stillwater, OK 74074-1745 | Oil & Gas Operator | May 2025 |
| 6 | Paragon Production Company | Edmond, OK 73013-5051 | Oil & Gas Operator | Feb 2021 |
| 7 | Parker & Parsley Dev Co | Midland, TX 79702 | Oil & Gas Operator | Mar 2015 |
| 8 | Patina Oil & Gas Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2016 |
| 9 | Patina Oklahoma Corp | Duncan, OK 73533-9523 | Oil & Gas Operator | Nov 2014 |
| 10 | Payne Exploration Company | Crescent, OK 73028 | Oil & Gas Operator | Jun 2025 |
| 11 | Peak Operating Oil & Gas LLC | Wichita, KS 67226 | Oil & Gas Operator | Jun 2025 |
| 12 | Peoples Bank & Trust Company | McPherson, KS 67460 | Oil Operator | Jan 2013 |
| 13 | Pepin Oil Co | Stillwater, OK 74076 | Oil & Gas Operator | Oct 2013 |
| 14 | Pepin Operating Company Inc | Stillwater, OK 74075-9535 | Oil & Gas Operator | May 2009 |
| 15 | Performance Petroleum Company LLC | Barnsdall, OK 74002 | Oil & Gas Operator | Jun 2025 |
| 16 | Perkins Energy Company | Duncan, OK 73533-3853 | Oil & Gas Operator | Jul 2025 |
| 17 | Petro-Guard Company, Inc. | Houston, TX 77057 | Oil & Gas Operator | Nov 2014 |
| 18 | Petroleum Corporation Of Texas | Breckenridge, TX 76024 | Oil & Gas Operator | May 2002 |
| 19 | Petroleum Production MGMT., Inc. | Kansas City, MO 64112 | Oil & Gas Operator | Oct 2025 |
| 20 | Petron Energy Inc | Dallas, TX 75252 | Oil & Gas Operator | Oct 2025 |
| 21 | Petroquest Energy, L.L.C. | Lafayette, LA 70505 | Oil & Gas Operator | Oct 2025 |
| 22 | Phillips Oil Operating Co | Enid, OK 73703-4921 | Oil & Gas Operator | May 2019 |
| 23 | Phillips Operating Co. | Mineral Wells, TX 76067 | Oil & Gas Operator | Jan 2013 |
| 24 | Pierce G R Oil Properties Inc | Oklahoma City, OK 73106 | Oil Operator | Feb 1999 |
| 25 | Pinnacle Corporation (The) | Broken Arrow, OK 74012 | Oil & Gas Operator | Nov 2014 |
| 26 | Pioneer Exploration Company | Houston, TX 77090 | Oil & Gas Operator | Jul 2025 |
| 27 | Polaris Petroleum Operations LLC | Branson West, MO 65737 | Oil & Gas Operator | May 2019 |
| 28 | Prairie Exploration Company | Norman, OK 73072 | Oil & Gas Operator | Mar 2011 |
| 29 | Prairie Wind Oil LLC | Blackwell, OK 74647-7242 | Oil & Gas Operator | Jun 2025 |
| 30 | Pressure Pumping Services LLC | Blackwell, OK 74631-2466 | Oil & Gas Operator | Jul 2025 |
| 31 | Primexx Operating Corporation | Dallas, TX 75206 | Oil & Gas Operator | Mar 2024 |
| 32 | Producers Oil Company | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2007 |
| 33 | Pryor, VIctor W., Jr. | Holdenville, OK 74848 | Oil & Gas Operator | Apr 2017 |
| 34 | Pullers Oil Company LLC | Blackwell, OK 74631-9512 | Oil & Gas Operator | Jun 2025 |