| 1 | P-R-O Management, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Apr 2024 |
| 2 | P. L. O. | Boerne, TX 78006 | Oil & Gas Operator | Jun 2016 |
| 3 | Pace Oil And Gas Company | Austin, TX 78715 | Oil & Gas Operator | Apr 2024 |
| 4 | Pack-Man Energy Company | Ranger, TX 76470 | Oil & Gas Operator | Nov 2005 |
| 5 | Palo Cross, LLC | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 6 | Palo Petroleum, Inc. | Dallas, TX 75360 | Oil & Gas Operator | Apr 2024 |
| 7 | Panamerican Operating Inc | Dallas, TX 75219 | Oil & Gas Operator | Apr 2024 |
| 8 | Paradigm Petroleum Corporation | Abilene, TX 79605 | Oil & Gas Operator | Apr 2024 |
| 9 | Paragon Oil & Gas, LLC | Aledo, TX 76008 | Oil & Gas Operator | Apr 2024 |
| 10 | Patton Exploration, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Apr 2024 |
| 11 | Patton, Lloyd | Fort Worth, TX 76113 | Oil & Gas Operator | Aug 2003 |
| 12 | Pawnee Oil And Gas, Inc. | Richardson, TX 75083 | Oil & Gas Operator | May 2023 |
| 13 | Peba Oil & Gas Co. | Wichita Falls, TX 76302 | Oil & Gas Operator | Jun 2015 |
| 14 | Peba Oil & Gas, Inc. | Nocona, TX 76255 | Oil & Gas Operator | Apr 2024 |
| 15 | Pecos Valley Management Co. | Dallas, TX 75206 | Oil & Gas Operator | Aug 2008 |
| 16 | Pendragon Oil Co. | Fort Worth, TX 76116 | Oil & Gas Operator | Apr 2024 |
| 17 | Peters Petroleum Corporation | Dallas, TX 75243 | Oil & Gas Operator | Jan 2014 |
| 18 | Peterson Oil And Gas LLC | Wichita Falls, TX 76310 | Oil & Gas Operator | Apr 2024 |
| 19 | Phillips, Bob | Weatherford, TX 76086 | Oil & Gas Operator | Nov 2019 |
| 20 | Pintail Production Co., Inc. | Fort Worth, TX 76132 | Oil & Gas Operator | Apr 2024 |
| 21 | Pioneer Natural Res. USA, Inc. | Irving, TX 75038 | Oil & Gas Operator | Apr 2024 |
| 22 | Plover Production Company | Fort Worth, TX 76109 | Oil & Gas Operator | Jul 2006 |
| 23 | Porter, James W. Special | Blanco, TX 78606 | Oil & Gas Operator | Apr 2024 |
| 24 | Powerline Energy Corporation | Arlington, TX 76015 | Oil & Gas Operator | Apr 2024 |
| 25 | Prairie Energy Company | Fort Worth, TX 76185 | Oil & Gas Operator | Mar 2003 |
| 26 | Prairie Petroleum, Inc | Plano, TX 75093 | Oil & Gas Operator | May 1999 |
| 27 | Premier Natural Resources II,LLC | Tulsa, OK 74105 | Oil & Gas Operator | Feb 2015 |
| 28 | Premier Oil & Gas LLC | Aledo, TX 76008 | Oil Operator | Dec 2022 |
| 29 | Primexx Operating Corporation | Dallas, TX 75206 | Oil & Gas Operator | Jan 2024 |
| 30 | Proco Operating Co., Inc. | Graford, TX 76449 | Oil & Gas Operator | Apr 2024 |
| 31 | Progas Properties, Inc. | New Braunfels, TX 78132 | Oil & Gas Operator | Apr 2024 |
| 32 | Pursley, John | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2024 |