| 1 | P&P Industries, Inc. | Austin, TX 78737 | Oil & Gas Operator | Dec 2002 |
| 2 | Palo Petroleum, Inc. | Dallas, TX 75360 | Oil & Gas Operator | Oct 2025 |
| 3 | Pan Petroleum Corp. | Abilene, TX 79608 | Oil & Gas Operator | Mar 2008 |
| 4 | Paragon Oil & Gas, LLC | Aledo, TX 76008 | Oil & Gas Operator | Oct 2025 |
| 5 | Pardue Oil | Breckenridge, TX 76424 | Oil & Gas Operator | Sep 2006 |
| 6 | Pardue Oil, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Oct 2025 |
| 7 | Parker Energy Company | Breckenridge, TX 76424 | Oil & Gas Operator | Oct 2025 |
| 8 | Parker Operating Co., Inc. | Aledo, TX 76008 | Oil & Gas Operator | Sep 2000 |
| 9 | Patterson Oil Company, The | Eastland, TX 76448 | Oil & Gas Operator | Jun 2025 |
| 10 | Patton Operating Co. | Kilgore, TX 75663 | Oil & Gas Operator | Nov 1997 |
| 11 | Patton, Lloyd | Fort Worth, TX 76113 | Oil & Gas Operator | Aug 2003 |
| 12 | Payne Petroleum | Abilene, TX 79604 | Oil & Gas Operator | Oct 2025 |
| 13 | Pearson, Lee Roy III | Eastland, TX 76448 | Oil & Gas Operator | Oct 2025 |
| 14 | Pearson, Lee Roy, Jr. | Eastland, TX 76448 | Oil & Gas Operator | Nov 1997 |
| 15 | Pendragon Oil Co. | Fort Worth, TX 76116 | Oil & Gas Operator | Oct 2025 |
| 16 | Pergerson Energy, L.L.C. | Richmond, VA 23225 | Oil Operator | Oct 2025 |
| 17 | Permian Surveys | Midland, TX 79707 | Oil & Gas Operator | Oct 1999 |
| 18 | Petex | Breckenridge, TX 76424 | Oil & Gas Operator | Oct 2025 |
| 19 | Pitcock, Inc. | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 20 | Pitts, Charles Company | Abilene, TX 79604 | Oil & Gas Operator | Dec 1997 |
| 21 | PK Gath & Oilfield SVCS, Inc. | Cleburne, TX 76031 | Oil & Gas Operator | Oct 2025 |
| 22 | Place Oil And Gas Co. | Eastland, TX 76448 | Oil & Gas Operator | Oct 2025 |
| 23 | Plains Marketing, LP | Cushing, OK 74023 | Oil Operator | Jan 2012 |
| 24 | Plains Petroleum Operating Co. | Denver, CO 80202 | Oil & Gas Operator | Dec 2014 |
| 25 | Plateau Energy, LLC | Smyer, TX 79367 | Oil & Gas Operator | Dec 2023 |
| 26 | Plover Production Company | Fort Worth, TX 76109 | Oil & Gas Operator | Jul 2006 |
| 27 | Poff, H. Bryan | Fort Worth, TX 76103 | Oil & Gas Operator | Mar 2008 |
| 28 | Prairie Production | San Antonio, TX 78228 | Oil & Gas Operator | Oct 2025 |
| 29 | Prime Operating | Queen City, TX 75572 | Oil & Gas Operator | Apr 2005 |
| 30 | Probe Exploration Company | Abilene, TX 79605 | Oil & Gas Operator | Oct 2025 |
| 31 | Proco Operating Co., Inc. | Graford, TX 76449 | Oil & Gas Operator | Oct 2025 |
| 32 | Prospecta Energy Group, Inc. | Brownwood, TX 76801 | Oil Operator | Oct 2025 |
| 33 | Pruitt Engineering & Petro. Co. | Kerrville, TX 78028 | Oil & Gas Operator | Jul 2007 |
| 34 | Putnam Oil Production | Abilene, TX 79603 | Oil & Gas Operator | Jun 2002 |
| 35 | PV Oil Services, LLC | Abilene, TX 79601 | Oil & Gas Operator | Oct 2025 |