| 1 | P & C Oil Company | Leona, TX 75850 | Oil & Gas Operator | Apr 2025 |
| 2 | Pacific Enterprise Oil Co USA | Los Angeles, CA 90071-2005 | Oil & Gas Operator | Aug 2012 |
| 3 | Pacific Enterprises Royalty Co | Oklahoma City, OK 73101 | Oil & Gas Operator | Feb 2002 |
| 4 | Pal Kids Inc | Coronado, CA 92118 | Oil & Gas Operator | Nov 2000 |
| 5 | Pan Texas Petroleum Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2003 |
| 6 | Pan Western Energy Corporation | Tulsa, OK 74114 | Oil & Gas Operator | Jun 2025 |
| 7 | Parham Edith | Beggs, OK 74421-2436 | Oil Operator | Oct 2024 |
| 8 | Park Avenue Exploration Corp | Oklahoma City, OK 73102-5604 | Oil & Gas Operator | Sep 2011 |
| 9 | Patina Oil & Gas Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2016 |
| 10 | Patterson Bobby Ray | Haskell, OK 74436-8809 | Oil & Gas Operator | Apr 2020 |
| 11 | Patton Oil Company | Midland, TX 79702 | Oil & Gas Operator | Jun 2007 |
| 12 | Paul Gillham Oil Company | Maud, OK 74854 | Oil & Gas Operator | Feb 2025 |
| 13 | Pedocs Inc | Bixby, OK 74008 | Oil & Gas Operator | Feb 2025 |
| 14 | Penequine Ranch | | Gas Operator | Sep 2019 |
| 15 | Penn Production Company Inc | | Oil & Gas Operator | Nov 2014 |
| 16 | Perry Production Company Inc | Perry, OK 73077-0412 | Oil & Gas Operator | May 2006 |
| 17 | Petco Petroleum Corp | Hinsdale, IL 60521 | Oil & Gas Operator | Feb 2025 |
| 18 | Petro-X Corporation | Houston, TX 77092 | Oil & Gas Operator | Jul 2002 |
| 19 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
| 20 | Petroleum International, Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2000 |
| 21 | Petroleum Properties Co Inc | Tulsa, OK 74132-4010 | Oil & Gas Operator | Sep 2012 |
| 22 | Petromark Resources Company | Tulsa, OK 74136 | Oil & Gas Operator | Sep 1993 |
| 23 | Petron Oil Company | Missouri City, TX 77489 | Oil & Gas Operator | Jun 2025 |
| 24 | Pettit Charles Oil Company | Okmulgee, OK 74447-4226 | Oil & Gas Operator | Sep 2018 |
| 25 | Pheldon Oil Production Inc | Asher, OK 74826-2629 | Oil & Gas Operator | Dec 2024 |
| 26 | Philco Energy Inc | Lamesa, TX 79331 | Oil & Gas Operator | Mar 2015 |
| 27 | Pilot Exploration Company | Okmulgee, OK 74447 | Oil & Gas Operator | Jan 2011 |
| 28 | Pinkston Robert L | Beggs, OK 74421 | Oil Operator | Jan 2025 |
| 29 | Pinnacle Corporation (The) | Broken Arrow, OK 74012 | Oil & Gas Operator | Nov 2014 |
| 30 | Pinnacle Exploration & Production Co | Kiefer, OK 74041 | Oil & Gas Operator | Feb 2025 |
| 31 | Pletcher Oil Limited Liability Company | Ardmore, OK 73401 | Oil & Gas Operator | Mar 2025 |
| 32 | Polaris Energy Dev Co | Tulsa, OK 74135 | Oil & Gas Operator | Apr 2000 |
| 33 | Pollard Jr G W | Okmulgee, OK 74447 | Oil & Gas Operator | Apr 2015 |
| 34 | Pope Charles Edward | Morris, OK 74445 | Oil & Gas Operator | Mar 2023 |
| 35 | Pope Oil LLC | Morris, OK 74445 | Oil Operator | Feb 2025 |
| 36 | Porter Tom & John | Boynton, OK 74422 | Oil & Gas Operator | Feb 2025 |
| 37 | Portfolio Oil Corporation | Oklahoma City, OK 73119 | Oil & Gas Operator | May 2013 |
| 38 | Potter Hammill & Potter Inc. | Beggs, OK 74421-0038 | Oil Operator | Aug 2013 |
| 39 | Pound Robert M | Bristow, OK 74010 | Oil & Gas Operator | Sep 2014 |
| 40 | Powers Energy Inc | Denver, CO 80237-1926 | Oil & Gas Operator | Aug 1999 |
| 41 | Pricor-TRC Corporation | Mounds, OK 74047 | Oil & Gas Operator | May 2013 |
| 42 | Producers Oil Company | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2007 |
| 43 | Prosperous Oil & Gas Inc | Okmulgee, OK 74447 | Oil & Gas Operator | Feb 2025 |
| 44 | Pulliam Ken D | Bristow, OK 74010-8648 | Oil & Gas Operator | Feb 2012 |