| 1 | Pan Western Energy Corporation | Tulsa, OK 74114 | Oil & Gas Operator | Oct 2025 |
| 2 | Panadero Oil Company | Dallas, TX 75206 | Oil & Gas Operator | Apr 2002 |
| 3 | Par Producing Company | Snyder, TX 79550 | Oil & Gas Operator | Jun 2017 |
| 4 | Paragon Oil & Gas, LLC | Aledo, TX 76008 | Oil & Gas Operator | Oct 2025 |
| 5 | Pardue, William M., III | Fort Worth, TX 76116 | Oil & Gas Operator | Dec 1996 |
| 6 | Patton Exploration, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Oct 2025 |
| 7 | Patton, E. N. Oil Company, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Oct 2025 |
| 8 | Ped Oil Corporation | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 9 | Peregrine Petroleum PRTNR, LTD. | Dallas, TX 75201 | Oil & Gas Operator | Oct 2025 |
| 10 | Permex Petroleum Corporation | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 11 | Permian Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 12 | Petex | Breckenridge, TX 76424 | Oil & Gas Operator | Oct 2025 |
| 13 | Petra Oleum Corp. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 14 | Petrogulf Corporation | Denver, CO 80202 | Oil & Gas Operator | Oct 2025 |
| 15 | Petroleum Technical Services Co. | Midland, TX 79707 | Oil & Gas Operator | Dec 2004 |
| 16 | Petrotex, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Aug 2003 |
| 17 | PG&E Resources Company | Houston, TX 77042 | Oil & Gas Operator | May 1995 |
| 18 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 19 | Pickens Company, Inc., The | Dallas, TX 75225 | Oil & Gas Operator | Jan 2025 |
| 20 | Pinon Petroleum, Inc. | San Angelo, TX 76903 | Oil & Gas Operator | Apr 2004 |
| 21 | Pioneer Energy Corporation | Dallas, TX 75204 | Oil & Gas Operator | Oct 2025 |
| 22 | Pioneer Exploration Company | Houston, TX 77090 | Oil & Gas Operator | Jul 2025 |
| 23 | Pitcock, Inc. | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 24 | Plantation Operating, LLC | Houston, TX 77041 | Oil & Gas Operator | Nov 2011 |
| 25 | PNG Operating Company | Oklahoma City, OK 73172 | Oil & Gas Operator | Oct 2025 |
| 26 | Pogo Producing Company | Houston, TX 77002 | Oil & Gas Operator | Jan 2008 |
| 27 | Polaris Production Corp. | Midland, TX 79702 | Oil & Gas Operator | Jan 2024 |
| 28 | Polk Petroleum, Inc. | Abilene, TX 79604 | Oil & Gas Operator | May 2024 |
| 29 | PPC Operating Company LLC | Houston, TX 77279 | Oil & Gas Operator | Jul 2019 |
| 30 | Presley Prod Investments, LLC | Abilene, TX 79604 | Oil Operator | Oct 2025 |
| 31 | Price, W. H. & Sons | Granbury, TX 76048 | Oil & Gas Operator | Nov 1997 |
| 32 | Pride Energy Company | Tulsa, OK 74170 | Oil & Gas Operator | Oct 2025 |
| 33 | Production Operators Of TX, LLC | Abilene, TX 79605 | Oil & Gas Operator | Oct 2025 |
| 34 | Pruitt Engineering & Petro. Co. | Kerrville, TX 78028 | Oil & Gas Operator | Jul 2007 |
| 35 | Pryor Petroleum Corporation | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 2025 |