| 1 | P4 Operating, LLC | Midland, TX 79710 | Oil & Gas Operator | Dec 2024 |
| 2 | Parapetroleum | Kerrville, TX 78028 | Oil & Gas Operator | Feb 1997 |
| 3 | Parker & Parsley Development Co. | Midland, TX 79702 | Oil & Gas Operator | May 1995 |
| 4 | Parker & Parsley Development L.P | Midland, TX 79702 | Oil & Gas Operator | Oct 2007 |
| 5 | Partee Drilling Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Dec 2024 |
| 6 | Patriot Resources, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2017 |
| 7 | Patriot Services, Inc. | Westbrook, TX 79565 | Oil & Gas Operator | Mar 2008 |
| 8 | Ped Oil Corporation | Midland, TX 79702 | Oil & Gas Operator | Dec 2024 |
| 9 | Pedco Resources Company | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2008 |
| 10 | Penergy | Midland, TX 79710 | Oil & Gas Operator | Dec 2024 |
| 11 | Perry Producing Company, Inc. | Ackerly, TX 79713 | Oil & Gas Operator | Dec 2024 |
| 12 | Petex | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2024 |
| 13 | Petra Oleum Corp. | Midland, TX 79702 | Oil & Gas Operator | Dec 2024 |
| 14 | Petroleum Technical Services Co. | Midland, TX 79707 | Oil & Gas Operator | Dec 2004 |
| 15 | Pharaoh Oil & Gas, Inc. | MC Camey, TX 79752 | Oil & Gas Operator | Dec 2024 |
| 16 | Phoenix Crude Oil Company | Westbrook, TX 79565 | Oil Operator | Oct 2004 |
| 17 | Pioneer Natural Res. USA, Inc. | Irving, TX 75038 | Oil & Gas Operator | Dec 2024 |
| 18 | Plains Marketing LP | Cushing, OK 74023 | Oil & Gas Operator | Dec 2022 |
| 19 | Plains Petroleum Operating Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2014 |
| 20 | Platinum Exploration Inc. | Midland, TX 79701 | Oil & Gas Operator | Dec 2024 |
| 21 | PPC Operating Company LLC | Houston, TX 77279 | Oil & Gas Operator | Jul 2019 |
| 22 | Presco | Snyder, TX 79549 | Oil & Gas Operator | Jan 2024 |
| 23 | Pride Energy Company | Tulsa, OK 74170 | Oil & Gas Operator | Dec 2024 |
| 24 | Production Marketing Assoc Inc | Plano, TX 75075 | Oil & Gas Operator | Dec 2024 |
| 25 | Pure Resources, L.P. | Midland, TX 79701 | Oil & Gas Operator | Mar 2006 |
| 26 | Purvis Operating Co. | Midland, TX 79710 | Oil & Gas Operator | Dec 2024 |