| 1 | P & C Oil Company | Leona, TX 75850 | Oil & Gas Operator | Apr 2025 |
| 2 | P & H Construction Inc | Wewoka, OK 74884 | Oil & Gas Operator | Jun 2024 |
| 3 | P K & L Oil Properties | Shawnee, OK 74802-0931 | Oil & Gas Operator | Mar 2001 |
| 4 | P-2 Exploraton Co Inc | Pampa, TX 79065-2920 | Oil & Gas Operator | Jun 1996 |
| 5 | Pacific Enterprises Royalty Co | Oklahoma City, OK 73101 | Oil & Gas Operator | Feb 2002 |
| 6 | Page Petroleum Inc | Calgary, AB T2P3M-3000 | Oil & Gas Operator | Nov 1998 |
| 7 | Paluca Petroleum Inc | Holdenville, OK 74848 | Oil & Gas Operator | Mar 2025 |
| 8 | Pan Western Energy Corporation | Tulsa, OK 74114 | Oil & Gas Operator | Jun 2025 |
| 9 | Panhandle Eastern Pipeline Company LP | Houston, TX 77002-6803 | Oil & Gas Operator | Oct 1999 |
| 10 | Par Oil Company Inc | Denver, CO 80201 | Oil & Gas Operator | Jun 2003 |
| 11 | Parker & Parsley Dev Co | Midland, TX 79702 | Oil & Gas Operator | Mar 2015 |
| 12 | Parkinsol Oil Company | Seminole, OK 74868-1648 | Oil & Gas Operator | Oct 2014 |
| 13 | Parks Bill M | Seminole, OK 74818-1648 | Oil & Gas Operator | Apr 2014 |
| 14 | Parrish Jr W F | Ardmore, OK 73401-2941 | Oil & Gas Operator | Feb 2025 |
| 15 | Parsons Engineering Corporation | Tulsa, OK 74137-7505 | Oil & Gas Operator | Oct 2017 |
| 16 | Patco Investments Inc | Seminole, OK 74868 | Oil Operator | Nov 2007 |
| 17 | Patina Oklahoma Corp | Duncan, OK 73533-9523 | Oil & Gas Operator | Nov 2014 |
| 18 | Patterson George E | Ada, OK 74820-1108 | Oil & Gas Operator | Jul 2016 |
| 19 | Patterson John H | Shawnee, OK 74801 | Oil Operator | Dec 2006 |
| 20 | Patterson Oil Company, The | Eastland, TX 76448 | Oil & Gas Operator | Feb 2025 |
| 21 | Patterson Russell B | Wewoka, OK 74884-1262 | Oil & Gas Operator | Feb 2020 |
| 22 | Paul Gillham Oil Company | Maud, OK 74854 | Oil & Gas Operator | Feb 2025 |
| 23 | Pawnee Petroleum Company | Seminole, OK 74868-0951 | Oil & Gas Operator | Feb 2023 |
| 24 | Pegg Oil LLC | Allen, OK 74825-4900 | Oil Operator | Aug 2022 |
| 25 | Pelican Production Company | New Orleans, LA 70130-2477 | Oil & Gas Operator | Mar 2014 |
| 26 | Pemco LLC | Skiatook, OK 74070 | Oil Operator | Aug 2024 |
| 27 | Pennant Oil & Gas LLC | Oklahma City, OK 73159-6905 | Oil & Gas Operator | Jan 2024 |
| 28 | Petra Petroleum Inc | Littleton, CO 80160-0319 | Oil & Gas Operator | Jun 2005 |
| 29 | Petro Speed Inc | Norman, OK 73069-8116 | Oil & Gas Operator | Mar 2015 |
| 30 | Petroleum Exploration Company LTD LP | Breckenridge, TX 76424 | Oil & Gas Operator | Mar 2025 |
| 31 | Petroleum Management, Inc. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Jun 2025 |
| 32 | Petroleum Resources Co | Wichita, KS 67206 | Oil & Gas Operator | May 2000 |
| 33 | Petroquest Energy, L.L.C. | Lafayette, LA 70505 | Oil & Gas Operator | Jun 2025 |
| 34 | Petroquest Oil & Gas LLC | Wewoka, OK 74884 | Oil & Gas Operator | Mar 2025 |
| 35 | Phase III Drilling Inc | Wetumka, OK 74883-0333 | Oil & Gas Operator | Feb 2025 |
| 36 | Phillips Jr N J | Seminole, OK 74868-2828 | Oil Operator | Jul 1998 |
| 37 | Philpot Operating Company Inc | Ada, OK 74820-4457 | Oil & Gas Operator | May 2013 |
| 38 | Phoenix Oil & Gas Inc | Seminole, OK 74868 | Oil & Gas Operator | Feb 2025 |
| 39 | Pierco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Jun 2025 |
| 40 | Pilgrim & Smith Inc | Tulsa, OK 74152 | Oil & Gas Operator | Apr 2015 |
| 41 | Pinnacle Corporation (The) | Broken Arrow, OK 74012 | Oil & Gas Operator | Nov 2014 |
| 42 | Pittencrieff America Inc | Abilene, TX 79608 | Oil & Gas Operator | Feb 2003 |
| 43 | PM Oil & Gas, Inc. | San Angelo, TX 76903 | Oil Operator | Jun 2025 |
| 44 | Pogue Randall | Ada, OK 74821-1547 | Oil & Gas Operator | Apr 2014 |
| 45 | Pontotoc Operations Inc | Dallas, TX 75225-1425 | Oil & Gas Operator | Jun 2017 |
| 46 | Postrock Midcontinent Production LLC | Oklahoma City, OK 73101 | Oil & Gas Operator | Feb 2025 |
| 47 | Pre-MC Inc | Allen, OK 74825 | Oil & Gas Operator | Feb 2025 |
| 48 | Premier Resources LTD | Denver, CO 80237 | Oil & Gas Operator | Jul 2002 |
| 49 | Prentice Bro Oil Operators | Allen, OK 74825 | Oil & Gas Operator | Apr 2014 |
| 50 | Presley Operating LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2025 |
| 51 | Presley Petroleum Company | Newport Beach, CA 92658-2200 | Oil & Gas Operator | Oct 1999 |
| 52 | Producers Oil Company | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2007 |
| 53 | Pryor, VIctor W., Jr. | Holdenville, OK 74848 | Oil & Gas Operator | Apr 2017 |
| 54 | Pumping Services Inc | Seminole, OK 74868-2421 | Oil & Gas Operator | Feb 2023 |