| 1 | Pace Oil And Gas Company | Austin, TX 78715 | Oil & Gas Operator | May 2024 |
| 2 | Paladin Petroleum III, L.L.C. | Austin, TX 78746 | Oil & Gas Operator | May 2024 |
| 3 | Paleo Oil Company LLC | Corpus Chrsti, TX 78412 | Oil & Gas Operator | May 2024 |
| 4 | Parker & Parsley Development L.P | Midland, TX 79702 | Oil & Gas Operator | Oct 2007 |
| 5 | Parker & Parsley Producing LP | Midland, TX 79702 | Oil & Gas Operator | Oct 1997 |
| 6 | Pearl, Bill H. Productions, Inc. | Corpus Chrsti, TX 78460 | Oil & Gas Operator | May 2024 |
| 7 | Peoples Energy Prod.-TX, L.P. | Houston, TX 77002 | Oil & Gas Operator | Sep 2007 |
| 8 | Petro-Hunt, L.L.C. | Dallas, TX 75201 | Oil & Gas Operator | May 2024 |
| 9 | Petro-Smith Operating LLC | Houston, TX 77005 | Oil & Gas Operator | May 2024 |
| 10 | Petrodome Operating, LLC | Houston, TX 77265 | Oil & Gas Operator | Jan 2024 |
| 11 | Petrogulf Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2024 |
| 12 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
| 13 | Petroleum Capital, L.C. | Dallas, TX 75367 | Oil & Gas Operator | May 2024 |
| 14 | Pioneer Natural Res. USA, Inc. | Irving, TX 75038 | Oil & Gas Operator | May 2024 |
| 15 | Plains Exploration & Prod. Co. | Houston, TX 77002 | Oil & Gas Operator | Jul 2013 |
| 16 | Plo'S Oil & Gas | Carrizo SPGS, TX 78834 | Oil & Gas Operator | May 2024 |
| 17 | Pogo Producing Company LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2024 |
| 18 | Praxis Energy, LLC | Midland, TX 79705 | Oil Operator | Apr 2002 |
| 19 | Premier Natural Resources, L.P. | Tulsa, OK 74105 | Oil & Gas Operator | Feb 2007 |
| 20 | Premier Natural Resources, LLC | Tulsa, OK 74136 | Oil & Gas Operator | May 2024 |
| 21 | Prize Operating Company | Grapevine, TX 76051 | Oil & Gas Operator | Aug 2016 |
| 22 | Pyle Petroleum | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Dec 1996 |
| 23 | Pyle Petroleum, Inc. | Tyler, TX 75703 | Oil & Gas Operator | May 2024 |