| 1 | Packard Gas Company | Irving, TX 75063 | Oil & Gas Operator | Nov 2006 |
| 2 | Paragon Corporation | Abilene, TX 79604 | Oil & Gas Operator | Mar 2025 |
| 3 | Pardue Energy Inc. | Dallas, TX 75230 | Oil & Gas Operator | Dec 2015 |
| 4 | Pardue Oil | Breckenridge, TX 76424 | Oil & Gas Operator | Sep 2006 |
| 5 | Pardue Oil, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Mar 2025 |
| 6 | Pardue, William M., III | Fort Worth, TX 76116 | Oil & Gas Operator | Dec 1996 |
| 7 | Parker & Parsley Development Co. | Midland, TX 79702 | Oil & Gas Operator | May 1995 |
| 8 | Parker Energy Company | Breckenridge, TX 76424 | Oil & Gas Operator | Mar 2025 |
| 9 | Parks, Rhone Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Mar 2025 |
| 10 | Partech Investments LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Mar 2025 |
| 11 | Paschal Petroleum, Inc. | Dallas, TX 75380 | Oil & Gas Operator | Apr 1994 |
| 12 | Patterson Oil Company, The | Eastland, TX 76448 | Oil & Gas Operator | Dec 2024 |
| 13 | Payne Petroleum | Abilene, TX 79604 | Oil & Gas Operator | Mar 2025 |
| 14 | Pendragon Oil Co. | Fort Worth, TX 76116 | Oil & Gas Operator | Mar 2025 |
| 15 | Perkins-Prothro Company | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2002 |
| 16 | Permian West Corp. | Odessa, TX 79762 | Oil & Gas Operator | Mar 2025 |
| 17 | Permico Corporation | Stafford, TX 77477 | Oil & Gas Operator | Nov 2003 |
| 18 | Perry Operating Inc. | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 19 | Peters Petroleum Corporation | Dallas, TX 75243 | Oil & Gas Operator | Jan 2014 |
| 20 | Petex | Breckenridge, TX 76424 | Oil & Gas Operator | Mar 2025 |
| 21 | Petram Oil And Gas, LLC | Richmond, TX 77407 | Oil Operator | Mar 2025 |
| 22 | Petro-Beth Oil & Gas, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2006 |
| 23 | Petrobal Omega 1, LLC | Little Elm, TX 75068 | Oil & Gas Operator | Mar 2025 |
| 24 | Petrocat Innovations, LLC | Forney, TX 75126 | Oil Operator | Mar 2025 |
| 25 | Petrogulf Corporation | Denver, CO 80202 | Oil & Gas Operator | Mar 2025 |
| 26 | Petroleum Property MGMT, Inc (A) | Fort Worth, TX 76101 | Oil & Gas Operator | May 1994 |
| 27 | Petropro Energy Partners, L.P. | Houston, TX 77024 | Oil & Gas Operator | Jan 2013 |
| 28 | PG-M International Operating,LLC | Borger, TX 79008 | Oil & Gas Operator | Mar 2025 |
| 29 | Phillips 66 Company | Bartlesville, OK 74004 | Oil & Gas Operator | Aug 1997 |
| 30 | Phillips Operating Co. | Mineral Wells, TX 76067 | Oil & Gas Operator | Jan 2013 |
| 31 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 32 | Pintail Production Co., Inc. | Fort Worth, TX 76132 | Oil & Gas Operator | Mar 2025 |
| 33 | Pittencrieff America Inc | Abilene, TX 79608 | Oil & Gas Operator | Feb 2003 |
| 34 | PK Gath & Oilfield SVCS, Inc. | Cleburne, TX 76031 | Oil & Gas Operator | Mar 2025 |
| 35 | Place Oil And Gas Co. | Eastland, TX 76448 | Oil & Gas Operator | Mar 2025 |
| 36 | Plains Production Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1995 |
| 37 | Post Oak Operating, LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Mar 2025 |
| 38 | Power, Scott | Breckenridge, TX 76424 | Oil & Gas Operator | Sep 1997 |
| 39 | Price, W. H. | Granbury, TX 76048 | Oil & Gas Operator | Jun 2024 |
| 40 | Primexx Operating Corporation | Dallas, TX 75206 | Oil & Gas Operator | Mar 2024 |
| 41 | Pro Oil & Gas Inc | Frankfort, IL 60423 | Oil & Gas Operator | May 2014 |
| 42 | Pryor Petroleum Corporation | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 2025 |
| 43 | PV Oil Services, LLC | Abilene, TX 79601 | Oil & Gas Operator | Mar 2025 |