| 1 | P4 Operating, LLC | Midland, TX 79710 | Oil & Gas Operator | Feb 2026 |
| 2 | Panada Exploration, Inc. | Tulsa, OK 74135 | Oil & Gas Operator | Jun 1996 |
| 3 | Panhandle Oil & Gas Inc | Oklahoma City, OK 73112-5688 | Oil & Gas Operator | May 2007 |
| 4 | Panther Exploration, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2017 |
| 5 | Paradis Investments, L.L.C. | Bellaire, TX 77401 | Oil Operator | Jun 2020 |
| 6 | Parker & Parsley Development Co. | Midland, TX 79702 | Oil & Gas Operator | May 1995 |
| 7 | Parker & Parsley Development L.P | Midland, TX 79702 | Oil & Gas Operator | Oct 2007 |
| 8 | Patriot Production LLC | Southlake, TX 76092 | Oil & Gas Operator | Apr 2023 |
| 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 | Patterson Petroleum, Inc. | Snyder, TX 79550 | Oil & Gas Operator | Feb 2000 |
| 12 | Pdeh LLC | Midland, TX 79701 | Oil & Gas Operator | Feb 2026 |
| 13 | Penn VIrginia Oil & Gas Corp | Houston, TX 77024 | Oil & Gas Operator | Dec 2023 |
| 14 | Pennzoil Exploration & Production Co. | Carthage, TX 75633 | Oil & Gas Operator | Mar 2008 |
| 15 | Pennzoil Petroleum Company | Houston, TX 77252 | Oil & Gas Operator | Nov 1999 |
| 16 | Penwell Energy, Inc. | Houston, TX 77057 | Oil & Gas Operator | Feb 2026 |
| 17 | Percussion Petroleum Oper II,LLC | Houston, TX 77042 | Oil & Gas Operator | Jul 2023 |
| 18 | Permian Brine Sales, Inc. | Odessa, TX 79763 | Gas Operator | May 2004 |
| 19 | Permian Development, Inc. | Midland, TX 79701 | Oil & Gas Operator | Mar 2008 |
| 20 | Permian Resources Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Feb 2026 |
| 21 | Permian Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 22 | Petex | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 2026 |
| 23 | Petro-Hunt Permian, LLC | Dallas, TX 75201 | Oil & Gas Operator | Feb 2026 |
| 24 | Petrocorp Acquisition Company | Tulsa, OK 74121 | Oil & Gas Operator | Dec 2002 |
| 25 | Petrocorp Incorporated,A TX.Corp | Tulsa, OK 74170 | Oil & Gas Operator | Apr 2005 |
| 26 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
| 27 | Petroleum Technical Services Co. | Midland, TX 79707 | Oil & Gas Operator | Dec 2004 |
| 28 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 29 | Pioneer Exploration, LLC | Houston, TX 77090 | Oil & Gas Operator | Dec 2025 |
| 30 | Pioneer Exploration, LTD. | Houston, TX 77090 | Oil & Gas Operator | Sep 2008 |
| 31 | Pioneer Natural Res. USA, Inc. | Spring, TX 77389 | Oil & Gas Operator | Feb 2026 |
| 32 | Pitts Energy Co. | Midland, TX 79707 | Oil & Gas Operator | Feb 2026 |
| 33 | Plains Marketing, LP | Cushing, OK 74023 | Oil Operator | Jan 2012 |
| 34 | Pogo Panhandle 2004, L.P. | Houston, TX 77002 | Oil & Gas Operator | Oct 2017 |
| 35 | Pogo Producing Company | Houston, TX 77002 | Oil & Gas Operator | Jan 2008 |
| 36 | Pogo Producing Company LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2025 |
| 37 | Point Energy Partners Petro, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Feb 2026 |
| 38 | Preferred Pipeline Corp. | Victoria, TX 77902 | Oil & Gas Operator | Dec 2025 |
| 39 | Priest Petroleum Corporation | Houston, TX 77002 | Oil & Gas Operator | Feb 2026 |
| 40 | Propel Energy, LLC | Houston, TX 77024 | Oil & Gas Operator | Sep 2013 |
| 41 | Putnam, Paul Oil | Orla, TX 79770 | Oil & Gas Operator | Feb 2026 |
| 42 | Pyramid Gas Co | Midland, TX 79701 | Oil Operator | Feb 2026 |