| 1 | P & M Petroleum Management | Denver, CO BAD ADDR | Oil & Gas Operator | Apr 2010 |
| 2 | P.O.&G. Operating, LLC | Houston, TX 77057 | Oil & Gas Operator | Mar 2025 |
| 3 | Pal Kids Inc | Coronado, CA 92118 | Oil & Gas Operator | Nov 2000 |
| 4 | Panenergy Services Inc | Houston, TX 77525 | Oil & Gas Operator | May 2001 |
| 5 | Panhandle Eastern Pipeline Company LP | Houston, TX 77002-6803 | Oil & Gas Operator | Oct 1999 |
| 6 | Panhandle Trading Company | Houston, TX 77251-1642 | Oil & Gas Operator | Jun 2003 |
| 7 | Pantera Energy Company | Amarillo, TX 79101 | Oil & Gas Operator | Mar 2025 |
| 8 | Paradox Petroleum Company | Amarillo, TX 79114-7587 | Oil & Gas Operator | Dec 1998 |
| 9 | Parker & Parsley Dev Co | Midland, TX 79702 | Oil & Gas Operator | Mar 2015 |
| 10 | Parker & Parsley Dev LP | Irving, TX 75039-3745 | Oil & Gas Operator | Mar 2015 |
| 11 | Parwest Land Exploration, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Dec 2024 |
| 12 | Patina Oil & Gas Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2016 |
| 13 | Patrick R J & Jack H Vaughn | Oklahoma City, OK 73154 | Oil & Gas Operator | Feb 2002 |
| 14 | Patrick RJ Operating Co | Liberal, KS 67905-1157 | Oil & Gas Operator | Nov 2014 |
| 15 | Patriot Petroleum Company | Bethany, OK 73008 | Oil & Gas Operator | Mar 2015 |
| 16 | Peregrine Petroleum Corp | Oklahoma City, OK 73116-7639 | Oil & Gas Operator | May 2020 |
| 17 | Petro Speed Inc | Norman, OK 73069-8116 | Oil & Gas Operator | Mar 2015 |
| 18 | Petroglyph Operating Co | Boise, ID 83709 | Oil & Gas Operator | Jul 2017 |
| 19 | Plains Liquids Transport Inc | Houston, TX 77002 | Oil & Gas Operator | May 1996 |
| 20 | Plains Marketing & Trans Inc | Houston, TX 76002 | Oil & Gas Operator | Oct 1998 |
| 21 | Plains Marketing, LP | Cushing, OK 74023 | Oil & Gas Operator | Dec 2022 |
| 22 | Plains Resources Inc. | Houston, TX 77002 | Oil & Gas Operator | Jul 2008 |
| 23 | Plo Inc | Amarillo, TX 79109-6222 | Gas Operator | Mar 2015 |
| 24 | Powerline Energy Corporation | Arlington, TX 76015 | Oil & Gas Operator | Mar 2025 |
| 25 | Primexx Operating Corporation | Dallas, TX 75206 | Oil & Gas Operator | Mar 2024 |
| 26 | Producers Operating Co Inc | Amarillo, TX 79105 | Oil & Gas Operator | Mar 2025 |
| 27 | Protege Energy LLC | Tulsa, OK 74135 | Oil & Gas Operator | Jan 2018 |