| 1 | P-R-O Management, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Sep 2025 |
| 2 | P.O.&G. Operating, LLC | Houston, TX 77057 | Oil & Gas Operator | Sep 2025 |
| 3 | Pactola Development Co | Tulsa, OK 74159 | Oil & Gas Operator | Sep 2004 |
| 4 | Paladin Energy Corp. | Dallas, TX 75229 | Oil & Gas Operator | Jul 2017 |
| 5 | Pantera Energy Company | Amarillo, TX 79101 | Oil & Gas Operator | Sep 2025 |
| 6 | Par Development | Midland, TX 79711 | Oil & Gas Operator | Sep 2025 |
| 7 | Parish, John R. | Andrews, TX 79714 | Oil & Gas Operator | Sep 2025 |
| 8 | Patriot Resources, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2017 |
| 9 | Patterson Petroleum LLC | Snyder, TX 79550 | Oil & Gas Operator | Oct 2007 |
| 10 | Patterson Petroleum LP | Snyder, TX 79550 | Oil & Gas Operator | Mar 2008 |
| 11 | Pcore Exploration & Prod II LLC | Golden, CO 80401 | Oil & Gas Operator | Jun 2020 |
| 12 | PDC Energy | Denver, CO 80203 | Oil & Gas Operator | Nov 2012 |
| 13 | PDC-WV-Co Corporation | Denver, CO 80203 | Oil & Gas Operator | Aug 2010 |
| 14 | Pecos Operators, Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 1993 |
| 15 | Ped Oil Corporation | Midland, TX 79702 | Oil & Gas Operator | Sep 2025 |
| 16 | Pen-Tex Production Co. Inc. | Penwell, TX 79776 | Oil & Gas Operator | Sep 2025 |
| 17 | Pen-Tex Production Co. L.L.C. | Penwell, TX 79776 | Oil & Gas Operator | Nov 1998 |
| 18 | Pena Bros. Oil And Gas, LLC | Odessa, TX 79764 | Oil Operator | Sep 2025 |
| 19 | Penergy | Midland, TX 79710 | Oil & Gas Operator | Sep 2025 |
| 20 | Pennant Dev. And Prod., LLC | Midland, TX 79702 | Oil Operator | Sep 2025 |
| 21 | Pennzoil Exploration & Production Co. | Carthage, TX 75633 | Oil & Gas Operator | Mar 2008 |
| 22 | Pennzoil Petroleum Company | Houston, TX 77252 | Oil & Gas Operator | Nov 1999 |
| 23 | Penroc Oil Corp. | Hobbs, NM 88241 | Oil & Gas Operator | Jun 2025 |
| 24 | Penwell Energy, Inc. | Houston, TX 77057 | Oil & Gas Operator | Sep 2025 |
| 25 | Penwell South Operating LLC | Houston, TX 77269 | Oil Operator | Sep 2025 |
| 26 | Permian Resources Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Sep 2025 |
| 27 | Permian Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 28 | Permian Services Co., LLC | Midland, TX 79702 | Oil & Gas Operator | Sep 2013 |
| 29 | Permian Solutions LLC | Midland, TX 79702 | Oil Operator | Sep 2025 |
| 30 | Petex | Breckenridge, TX 76424 | Oil & Gas Operator | Sep 2025 |
| 31 | Petrogulf Corporation | Denver, CO 80202 | Oil & Gas Operator | Sep 2025 |
| 32 | Petroleum Technical Services Co. | Midland, TX 79707 | Oil & Gas Operator | Dec 2004 |
| 33 | Petromining, Inc. | Plano, TX 75026 | Oil & Gas Operator | Sep 2025 |
| 34 | Petroplex Energy Inc. | Midland, TX 79702 | Oil & Gas Operator | Sep 2025 |
| 35 | Petroplex Equipment, Inc. | Midland, TX 79701 | Oil & Gas Operator | May 2019 |
| 36 | Pfog Operations, LLC | Midland, TX 79710 | Oil Operator | Sep 2025 |
| 37 | Pharaoh Oil & Gas, Inc. | MC Camey, TX 79752 | Oil & Gas Operator | Sep 2025 |
| 38 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 39 | Phoenix Hydrocarbons Operating | Midland, TX 79702 | Oil & Gas Operator | Jun 2024 |
| 40 | Piedra Operating, LLC | Denver, CO 80202 | Oil & Gas Operator | May 2023 |
| 41 | Pinnacle Mining Corporation | Midland, TX 79708 | Oil & Gas Operator | Sep 2025 |
| 42 | Pioneer Exploration Company | Houston, TX 77090 | Oil & Gas Operator | Jun 2025 |
| 43 | Pioneer Natural Res. USA, Inc. | Spring, TX 77389 | Oil & Gas Operator | Sep 2025 |
| 44 | Pitco Investments, LTD. | Scottsdale, AZ 85261 | Oil & Gas Operator | Jan 2013 |
| 45 | Pitts Energy Co. | Midland, TX 79707 | Oil & Gas Operator | Sep 2025 |
| 46 | Placid Oil Company | Houston, TX 77227 | Oil & Gas Operator | Mar 2008 |
| 47 | Plains Marketing, LP | Cushing, OK 74023 | Oil Operator | Jan 2012 |
| 48 | Plains Petroleum Operating Co. | Denver, CO 80202 | Oil & Gas Operator | Dec 2014 |
| 49 | Plains Production Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1995 |
| 50 | Platinum Exploration Inc. | Midland, TX 79701 | Oil & Gas Operator | Sep 2025 |
| 51 | Pogo Producing Company | Houston, TX 77002 | Oil & Gas Operator | Jan 2008 |
| 52 | Prairie Crude, Inc. | Midland, TX 79704 | Oil & Gas Operator | Jan 2005 |
| 53 | Prasad, LTD. | Midland, TX 79701 | Oil & Gas Operator | Sep 2006 |
| 54 | Pride Energy Company | Tulsa, OK 74170 | Oil & Gas Operator | Sep 2025 |
| 55 | Prime Operating Company | Houston, TX 77024 | Oil & Gas Operator | Sep 2025 |
| 56 | Prize Operating Company | Grapevine, TX 76051 | Oil & Gas Operator | Aug 2016 |
| 57 | Pro- Gas, Inc. | Midland, TX 79711 | Oil & Gas Operator | Sep 2025 |
| 58 | Probity Operating, LLC | Midland, TX 79708 | Oil & Gas Operator | Jul 2014 |
| 59 | Production Gathering Company, LP | Dallas, TX 75206 | Oil & Gas Operator | Sep 2025 |
| 60 | Pronghorn Management Corporation | Hobbs, NM 88241 | Oil & Gas Operator | Sep 2025 |
| 61 | Prospctv Invstmnt & TRDG Co, LTD | Tulsa, OK 74170 | Oil & Gas Operator | May 2001 |
| 62 | Prosper Oil & Gas,Inc. | Dallas, TX 75201 | Oil & Gas Operator | Sep 2025 |
| 63 | Pure Resources, L.P. | Midland, TX 79701 | Oil & Gas Operator | Mar 2006 |
| 64 | PXP Gulf Coast Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |