| 1 | Paleo Oil Company LLC | Corpus Chrsti, TX 78412 | Oil & Gas Operator | Apr 2024 |
| 2 | Palisades Operating Company | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 3 | Par Minerals Corporation | Shreveport, LA 71101 | Oil & Gas Operator | Apr 2024 |
| 4 | Paradigm Exploration, L.P. | La Grange, TX 78945 | Oil Operator | Sep 2008 |
| 5 | Paradis Investments, L.L.C. | Bellaire, TX 77401 | Oil Operator | Jun 2020 |
| 6 | Penn VIrginia Oil & Gas Corp | Houston, TX 77024 | Oil & Gas Operator | Dec 2018 |
| 7 | Petro-Guard Production,L.L.C. | Houston, TX 77063 | Oil & Gas Operator | Dec 2023 |
| 8 | Petro-Hunt, L.L.C. | Dallas, TX 75201 | Oil & Gas Operator | Apr 2024 |
| 9 | Petroglyph Operating Co | Boise, ID 83709 | Oil & Gas Operator | Jul 2017 |
| 10 | Petrotex Engineering Company | Cypress, TX 77429 | Oil & Gas Operator | Apr 2024 |
| 11 | Phillips 66 Company | Bartlesville, OK 74004 | Oil & Gas Operator | Aug 1997 |
| 12 | Placid Oil Company | Houston, TX 77227 | Oil & Gas Operator | Mar 2008 |
| 13 | Plains Exploration & Prod. Co. | Houston, TX 77002 | Oil & Gas Operator | Jul 2013 |
| 14 | Pogo Producing Company | Houston, TX 77002 | Oil & Gas Operator | Jan 2008 |
| 15 | Pogo Producing Company LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2024 |
| 16 | Prime Operating Company | Houston, TX 77024 | Oil & Gas Operator | Apr 2024 |
| 17 | Prosper Oil & Gas,Inc. | Dallas, TX 75201 | Oil & Gas Operator | Apr 2024 |