| 1 | Paint Rock Operating, LLC | San Angelo, TX 76904 | Oil & Gas Operator | Apr 2026 |
| 2 | Panamerican Operating Inc | Dallas, TX 75219 | Oil & Gas Operator | Apr 2026 |
| 3 | Paradis Investments, L.L.C. | Bellaire, TX 77401 | Oil Operator | Jun 2020 |
| 4 | Paragon Corporation | Abilene, TX 79604 | Oil & Gas Operator | Apr 2026 |
| 5 | Parallel Petroleum Corporation | Midland, TX 79702 | Oil & Gas Operator | Jan 2010 |
| 6 | Parish, John R. | Andrews, TX 79714 | Oil & Gas Operator | Apr 2026 |
| 7 | Parmer, I. A. | Abilene, TX 79606 | Oil & Gas Operator | Oct 1993 |
| 8 | Patriot Resources, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2017 |
| 9 | Patterson Petroleum LP | Snyder, TX 79550 | Oil & Gas Operator | Mar 2008 |
| 10 | Patterson Petroleum, Inc. | Snyder, TX 79550 | Oil & Gas Operator | Feb 2000 |
| 11 | Patterson, Ben M., Jr. | San Antonio, TX 78216 | Oil & Gas Operator | Mar 2003 |
| 12 | Patton Exploration, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Apr 2026 |
| 13 | Patton, E. N. Oil Company, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Apr 2026 |
| 14 | Patton, Lloyd | Fort Worth, TX 76113 | Oil & Gas Operator | Aug 2003 |
| 15 | Payne-Johnston & Byars | Tyler, TX 75702 | Oil & Gas Operator | Jun 1997 |
| 16 | Pearl, Bill H. Productions, Inc. | Corpus Chrsti, TX 78460 | Oil & Gas Operator | Apr 2026 |
| 17 | Pecos Valley Management Co. | Dallas, TX 75206 | Oil & Gas Operator | Aug 2008 |
| 18 | Pendragon Oil Co. | Fort Worth, TX 76116 | Oil & Gas Operator | Apr 2026 |
| 19 | Permian Legend LLC | San Marcos, TX 78666 | Oil Operator | Apr 2026 |
| 20 | Permian Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 21 | Petex | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2026 |
| 22 | Petra Oleum Corp. | Midland, TX 79702 | Oil & Gas Operator | Apr 2026 |
| 23 | Petrocorp Acquisition Company | Tulsa, OK 74121 | Oil & Gas Operator | Dec 2002 |
| 24 | Petrocorp Incorporated,A TX.Corp | Tulsa, OK 74170 | Oil & Gas Operator | Apr 2005 |
| 25 | Petroleum Land Company | Abilene, TX 79606 | Oil & Gas Operator | May 2000 |
| 26 | Petroleum Technical Services Co. | Midland, TX 79707 | Oil & Gas Operator | Dec 2004 |
| 27 | Petrosource Energy Corporation | Fort Worth, TX 76112 | Oil & Gas Operator | Apr 2026 |
| 28 | Petrotex, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Aug 2003 |
| 29 | Pgi Operating, LLC | Sweetwater, TX 79556 | Oil Operator | Apr 2026 |
| 30 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 31 | Phillips, Jack L. | Gladewater, TX 75647 | Oil & Gas Operator | Dec 1997 |
| 32 | Phoenix Petrocorp, Inc. | McKinney, TX 75070 | Oil & Gas Operator | Feb 2026 |
| 33 | Pioneer Exploration Company | Houston, TX 77090 | Oil & Gas Operator | Feb 2026 |
| 34 | Pioneer Exploration, LLC | Houston, TX 77090 | Oil & Gas Operator | Dec 2025 |
| 35 | Pioneer Exploration, LTD. | Houston, TX 77090 | Oil & Gas Operator | Sep 2008 |
| 36 | Pitco Investments, LTD. | Scottsdale, AZ 85261 | Oil & Gas Operator | Jan 2013 |
| 37 | Pittencrieff America Inc | Abilene, TX 79608 | Oil & Gas Operator | Feb 2003 |
| 38 | Plains Petroleum Operating Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2014 |
| 39 | Plantation Operating, LLC | Houston, TX 77041 | Oil & Gas Operator | Nov 2011 |
| 40 | Presley Prod Investments, LLC | Abilene, TX 79604 | Oil Operator | Apr 2026 |
| 41 | Price, W. H. | Granbury, TX 76048 | Oil & Gas Operator | Jun 2024 |
| 42 | Pride Energy Company | Tulsa, OK 74170 | Oil & Gas Operator | Apr 2026 |
| 43 | Prize Operating Company | Grapevine, TX 76051 | Oil & Gas Operator | Aug 2016 |
| 44 | Pro- Gas, Inc. | Midland, TX 79711 | Oil & Gas Operator | Apr 2026 |
| 45 | Production Operators Of TX, LLC | Abilene, TX 79605 | Oil & Gas Operator | Apr 2026 |
| 46 | Progas Properties, Inc. | New Braunfels, TX 78132 | Oil & Gas Operator | Apr 2026 |
| 47 | Prospctv Invstmnt & TRDG Co, LTD | Tulsa, OK 74170 | Oil & Gas Operator | May 2001 |
| 48 | Purvis, J. H. | Midland, TX 79702 | Oil & Gas Operator | Dec 1994 |