| 1 | P & W Well Service Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2025 |
| 2 | P. L. O. | Boerne, TX 78006 | Oil & Gas Operator | Jun 2016 |
| 3 | P.B. Blue Dot Properties | Wexford, PA 15090 | Oil & Gas Operator | Mar 2025 |
| 4 | Pace Operating | Abilene, TX 79608 | Oil & Gas Operator | Mar 2025 |
| 5 | Paint Rock Operating, LLC | San Angelo, TX 76904 | Oil & Gas Operator | Mar 2025 |
| 6 | Panamerican Operating Inc | Dallas, TX 75219 | Oil & Gas Operator | Mar 2025 |
| 7 | Panther Creek Resources, LLC | Denver, CO 80202 | Oil & Gas Operator | May 2012 |
| 8 | Paragon Oil & Gas, LLC | Aledo, TX 76008 | Oil & Gas Operator | Mar 2025 |
| 9 | Pardue Oil | Breckenridge, TX 76424 | Oil & Gas Operator | Sep 2006 |
| 10 | Parker Operating Co., Inc. | Aledo, TX 76008 | Oil & Gas Operator | Sep 2000 |
| 11 | Patton, E. N. Oil Company, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2025 |
| 12 | Patton, Lloyd | Fort Worth, TX 76113 | Oil & Gas Operator | Aug 2003 |
| 13 | Payne Petroleum | Abilene, TX 79604 | Oil & Gas Operator | Mar 2025 |
| 14 | PDH Enterprises | Pittsburg, TX 75686 | Oil & Gas Operator | Apr 2019 |
| 15 | Penn VIrginia Oil & Gas Corp | Houston, TX 77024 | Oil & Gas Operator | Dec 2018 |
| 16 | Penroc Oil Corp. | Hobbs, NM 88241 | Oil & Gas Operator | Dec 2024 |
| 17 | Perimeter Resource Company | Midland, TX 79702 | Oil & Gas Operator | Mar 2025 |
| 18 | Permian Legend LLC | San Marcos, TX 78666 | Oil Operator | Mar 2025 |
| 19 | Permian Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 20 | Petra Oleum Corp. | Midland, TX 79702 | Oil & Gas Operator | Mar 2025 |
| 21 | Petro 2000 Exploration Co. | Katy, TX 77450 | Oil & Gas Operator | Nov 2011 |
| 22 | Petro-West Corporation | Lubbock, TX 79404 | Oil & Gas Operator | Oct 2001 |
| 23 | Petrosource Energy Corporation | Fort Worth, TX 76112 | Oil & Gas Operator | Mar 2025 |
| 24 | Pinon Petroleum, Inc. | San Angelo, TX 76903 | Oil & Gas Operator | Apr 2004 |
| 25 | Pioneer Energy Corporation | Dallas, TX 75204 | Oil & Gas Operator | Mar 2025 |
| 26 | Pioneer Exploration Company | Houston, TX 77090 | Oil & Gas Operator | Dec 2024 |
| 27 | Pioneer Exploration, LLC | Houston, TX 77090 | Oil & Gas Operator | Dec 2024 |
| 28 | Pioneer Exploration, LTD. | Houston, TX 77090 | Oil & Gas Operator | Sep 2008 |
| 29 | Pittencrieff America Inc | Abilene, TX 79608 | Oil & Gas Operator | Feb 2003 |
| 30 | Place Oil And Gas Co. | Eastland, TX 76448 | Oil & Gas Operator | Mar 2025 |
| 31 | Plover Production Company | Fort Worth, TX 76109 | Oil & Gas Operator | Jul 2006 |
| 32 | PNG Operating Company | Oklahoma City, OK 73172 | Oil & Gas Operator | Mar 2025 |
| 33 | Pony Express Corporate Trust | Aledo, TX 76008 | Oil & Gas Operator | Mar 2025 |
| 34 | Powell, A. Brandt | Coleman, TX 76834 | Oil & Gas Operator | Mar 1999 |
| 35 | Powell, A. Brandt Co. | Hawley, TX 79525 | Oil & Gas Operator | Mar 2025 |
| 36 | Powerflex Services Inc. | Winters, TX 79567 | Oil & Gas Operator | Mar 2025 |
| 37 | Precision Drilling Company, Inc. | Santa Anna, TX 76878 | Oil & Gas Operator | Nov 1995 |
| 38 | Prensorus Energy, LLC | Abilene, TX 79604 | Oil & Gas Operator | Mar 2025 |
| 39 | Pruitt Engineering & Petro. Co. | Kerrville, TX 78028 | Oil & Gas Operator | Jul 2007 |
| 40 | Purvis Operating Co. | Midland, TX 79710 | Oil & Gas Operator | Mar 2025 |
| 41 | PWR Operating, LLC | Dallas, TX 75219 | Oil & Gas Operator | Mar 2025 |
| 42 | Pyramid Production Co. | Abilene, TX 79608 | Oil & Gas Operator | Jun 1994 |