| 1 | P & M Construction | Graham, TX 76450 | Oil & Gas Operator | May 2026 |
| 2 | P. L. O. | Boerne, TX 78006 | Oil & Gas Operator | Jun 2016 |
| 3 | Pack-Man Energy Company | Ranger, TX 76470 | Oil & Gas Operator | Nov 2005 |
| 4 | Palo Cross, LLC | Graham, TX 76450 | Oil & Gas Operator | May 2026 |
| 5 | Palo Pinto Gas Company | Snyder, TX 79550 | Oil & Gas Operator | Dec 1994 |
| 6 | Palo Pinto Oil & Gas Corporation | Mineral Wells, TX 76068 | Oil & Gas Operator | Apr 2015 |
| 7 | Panadero Oil Company | Dallas, TX 75206 | Oil & Gas Operator | Apr 2002 |
| 8 | Panther City Energy LLC | San Antonio, TX 78205 | Oil & Gas Operator | May 2026 |
| 9 | Pardue Energy Inc. | Dallas, TX 75230 | Oil & Gas Operator | Dec 2015 |
| 10 | Pardue, William M., III | Fort Worth, TX 76116 | Oil & Gas Operator | Dec 1996 |
| 11 | Parks, Rhone Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | May 2026 |
| 12 | Patton Exploration, Inc. | Abilene, TX 79604 | Oil & Gas Operator | May 2026 |
| 13 | Patton, Lloyd | Fort Worth, TX 76113 | Oil & Gas Operator | Aug 2003 |
| 14 | Peba Oil & Gas Co. | Wichita Falls, TX 76302 | Oil & Gas Operator | Jun 2015 |
| 15 | Peba Oil & Gas, Inc. | Nocona, TX 76255 | Oil & Gas Operator | May 2026 |
| 16 | Pennington, W. L., Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Jul 1996 |
| 17 | Penntex Resources, L.P. | State College, PA 16803 | Oil & Gas Operator | Mar 2016 |
| 18 | Petex | Breckenridge, TX 76424 | Oil & Gas Operator | May 2026 |
| 19 | Petrobal Omega 1, LLC | Little Elm, TX 75068 | Oil & Gas Operator | May 2026 |
| 20 | Petroleum Management Int'L, Inc. | Sugar Land, TX 77487 | Oil & Gas Operator | Oct 1993 |
| 21 | Petroleum Technical Services Co. | Midland, TX 79707 | Oil & Gas Operator | Dec 2004 |
| 22 | Phillips Operating Co. | Mineral Wells, TX 76067 | Oil & Gas Operator | Jan 2013 |
| 23 | Phillips, Bob | Weatherford, TX 76086 | Oil & Gas Operator | Nov 2019 |
| 24 | Pioneer Natural Res. USA, Inc. | Spring, TX 77389 | Oil & Gas Operator | May 2026 |
| 25 | Pitcock, Inc. | Graham, TX 76450 | Oil & Gas Operator | May 2026 |
| 26 | Pittencrieff America Inc | Abilene, TX 79608 | Oil & Gas Operator | Feb 2003 |
| 27 | PK Gath & Oilfield SVCS, Inc. | Cleburne, TX 76031 | Oil & Gas Operator | May 2026 |
| 28 | Plains Production Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1995 |
| 29 | Pozo Resources, Inc | Houston, TX 77002 | Oil & Gas Operator | May 2026 |
| 30 | Premier Natural Resources II,LLC | Tulsa, OK 74105 | Oil & Gas Operator | Feb 2015 |
| 31 | Primexx Operating Corporation | Dallas, TX 75206 | Oil & Gas Operator | Mar 2024 |
| 32 | Primrose Operating Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Jun 2007 |
| 33 | Pro Oil & Gas Inc | Frankfort, IL 60423 | Oil & Gas Operator | May 2014 |
| 34 | Proco Operating Co., Inc. | Graford, TX 76449 | Oil & Gas Operator | May 2026 |
| 35 | Pryor Petroleum Corporation | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2026 |
| 36 | Pullen Oil & Gas | Richardson, TX 75080 | Oil & Gas Operator | Dec 1997 |
| 37 | Purex Energy LLC | Fort Worth, TX 76101 | Oil & Gas Operator | Oct 2015 |
| 38 | Pursley, John | Jacksboro, TX 76458 | Oil & Gas Operator | May 2026 |
| 39 | Pyramid Energy Inc | San Antonio, TX 78216 | Oil & Gas Operator | Feb 2012 |