| 1 | P & C Oil Company | Leona, TX 75850 | Oil & Gas Operator | Nov 2025 |
| 2 | P-2 Exploraton Co Inc | Pampa, TX 79065-2920 | Oil & Gas Operator | Jun 1996 |
| 3 | Pace Exploration LLC | Tulsa, OK 74133 | Oil & Gas Operator | Nov 2025 |
| 4 | Pacific Enterprise Oil Co USA | Los Angeles, CA 90071-2005 | Oil & Gas Operator | Aug 2012 |
| 5 | Pak Energy LLC | Calgary, AB T3A-5E8 | Oil Operator | Sep 2022 |
| 6 | Palm Operating LLC | Oklahoma City, OK 73106-5646 | Oil & Gas Operator | Nov 2019 |
| 7 | Paluca Petroleum Inc | Holdenville, OK 74848 | Oil & Gas Operator | Nov 2025 |
| 8 | Pan Western Energy Corporation | Tulsa, OK 74114 | Oil & Gas Operator | Feb 2026 |
| 9 | Panada Exploration, Inc. | Tulsa, OK 74135 | Oil & Gas Operator | Jun 1996 |
| 10 | Par Oil Company Inc | Denver, CO 80201 | Oil & Gas Operator | Jun 2003 |
| 11 | Parish Petroleum Company | Tulsa, OK 74137 | Oil & Gas Operator | Jul 2025 |
| 12 | Parker & Parsley Dev Co | Midland, TX 79702 | Oil & Gas Operator | Mar 2015 |
| 13 | Parks Bill M | Seminole, OK 74818-1648 | Oil & Gas Operator | Apr 2014 |
| 14 | Patco Investments Inc | Seminole, OK 74868 | Oil Operator | Nov 2007 |
| 15 | Patina Oil & Gas Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2016 |
| 16 | Patina Oklahoma Corp | Duncan, OK 73533-9523 | Oil & Gas Operator | Nov 2014 |
| 17 | Payneco Pipeline Company | Yale, OK 74085 | Oil & Gas Operator | Dec 2000 |
| 18 | Pearl Petroleum Inc | Lawton, OK 73501-5821 | Oil & Gas Operator | Jan 2014 |
| 19 | Pelto Oil Company | Houston, TX 77002 | Oil & Gas Operator | Nov 1998 |
| 20 | Pemex Inc | Dallas, TX 75367-0249 | Oil & Gas Operator | Nov 2015 |
| 21 | Perrin, Nuel | | Gas Operator | Jun 2003 |
| 22 | Petro Davis Inc | Oklahoma City, OK 73142-1807 | Oil & Gas Operator | Jan 2013 |
| 23 | Petro Warrior LLC | Wichita, KS 67206 | Oil & Gas Operator | Dec 2025 |
| 24 | Petro-Chase Energy Corp | Oklahoma City, OK 73135-6205 | Oil & Gas Operator | Jan 2007 |
| 25 | Petro-Mac Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Nov 2025 |
| 26 | Petroflow Energy Corporation | Tulsa, OK 74119-5405 | Oil & Gas Operator | Oct 2016 |
| 27 | Petroleum Explo Prod Inc | Oilton, OK 74052 | Oil & Gas Operator | Jan 2017 |
| 28 | Petroleum Inc | Wichita, KS 67202 | Oil & Gas Operator | Oct 2021 |
| 29 | Petroleum Management Prof Inc | Oklahoma City, OK 73120-1848 | Oil & Gas Operator | Apr 2009 |
| 30 | Petroleum Management, Inc. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Feb 2026 |
| 31 | Petromark Resources Company | Tulsa, OK 74136 | Oil & Gas Operator | Sep 1993 |
| 32 | Petron Energy Inc | Dallas, TX 75252 | Oil & Gas Operator | Feb 2026 |
| 33 | Phase III Drilling Inc | Wetumka, OK 74883-0333 | Oil & Gas Operator | Nov 2025 |
| 34 | Phillips Oil Operating Co | Enid, OK 73703-4921 | Oil & Gas Operator | May 2019 |
| 35 | Pinnacle Corporation (The) | Broken Arrow, OK 74012 | Oil & Gas Operator | Nov 2014 |
| 36 | Pinnacle Exploration Inc | Edmond, OK 73003 | Oil & Gas Operator | Mar 2024 |
| 37 | Pittencrieff America Inc | Abilene, TX 79608 | Oil & Gas Operator | Feb 2003 |
| 38 | Pollard Jr G W | Okmulgee, OK 74447 | Oil & Gas Operator | Apr 2015 |
| 39 | Ponder Oil Producers LLC | Okemah, OK 74859 | Oil & Gas Operator | Sep 2025 |
| 40 | Pope Charles Edward | Morris, OK 74445 | Oil & Gas Operator | Mar 2023 |
| 41 | Porter Oil And Gas Inc | Fort Smith, AR 72903-6906 | Oil & Gas Operator | Nov 2025 |
| 42 | Portfolio Oil Corporation | Oklahoma City, OK 73119 | Oil & Gas Operator | May 2013 |
| 43 | Pound Robert M | Bristow, OK 74010 | Oil & Gas Operator | Sep 2014 |
| 44 | Powell Jess L | Sapulpa, OK 74066 | Oil & Gas Operator | Sep 2025 |
| 45 | Prentice Ed | Allen, OK 74825 | Oil & Gas Operator | Sep 2025 |
| 46 | Presidio Petroleum LLC | Canadian, TX 79014 | Oil & Gas Operator | Feb 2026 |
| 47 | Price William H | Shawnee, OK 74801 | Gas Operator | Feb 1995 |
| 48 | Primary Natural Resources Inc. | Tulsa, OK 74136-6351 | Oil & Gas Operator | Mar 2023 |
| 49 | Prime Operating Company | Midland, TX 79705 | Oil & Gas Operator | Feb 2026 |
| 50 | Primexx Operating Corporation | Dallas, TX 75206 | Oil & Gas Operator | Mar 2024 |
| 51 | Prosperous Oil & Gas Inc | Okmulgee, OK 74447 | Oil & Gas Operator | Nov 2025 |
| 52 | Providence Oil & Gas Corp | Tulsa, OK 74135-5463 | Oil & Gas Operator | May 2005 |
| 53 | Pryor VIctor W Jr | Holdenville, OK 74848 | Oil & Gas Operator | Apr 2017 |
| 54 | Public Service Company Of Okla | Tulsa, OK 74102 | Gas Operator | Jun 2001 |