| 1 | P & A Operating, Inc. | Houston, TX 77095 | Oil & Gas Operator | Jun 2025 |
| 2 | P1 Energy, LLC | Judson, TX 75660 | Oil & Gas Operator | Jun 2025 |
| 3 | P4 Operating, LLC | Midland, TX 79710 | Oil & Gas Operator | Jun 2025 |
| 4 | Pactola Development Co | Tulsa, OK 74159 | Oil & Gas Operator | Sep 2004 |
| 5 | Palo Petroleum Inc | Dallas, TX 75360 | Oil & Gas Operator | Jun 2025 |
| 6 | Parapetroleum | Kerrville, TX 78028 | Oil & Gas Operator | Feb 1997 |
| 7 | Parker & Parsley Development Co. | Midland, TX 79702 | Oil & Gas Operator | May 1995 |
| 8 | Parker & Parsley Development L.P | Midland, TX 79702 | Oil & Gas Operator | Oct 2007 |
| 9 | Parsley Energy Operations, LLC | Irving, TX 75038 | Oil & Gas Operator | Jan 2021 |
| 10 | Patriot Resources, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2017 |
| 11 | Patterson Petroleum LP | Snyder, TX 79550 | Oil & Gas Operator | Mar 2008 |
| 12 | Pbex Operations, LLC | Midland, TX 79702 | Oil & Gas Operator | Jun 2025 |
| 13 | Pcore Exploration & Prod II LLC | Golden, CO 80401 | Oil & Gas Operator | Jun 2020 |
| 14 | Pembrook Oil Company | Big Lake, TX 76932 | Oil & Gas Operator | May 1999 |
| 15 | Perenco LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2005 |
| 16 | Permian Legend LLC | San Marcos, TX 78666 | Oil Operator | Jun 2025 |
| 17 | Permian Resources Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Jun 2025 |
| 18 | Permian Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 19 | Permian Resources, LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2018 |
| 20 | Permian West Corp. | Odessa, TX 79762 | Oil & Gas Operator | Jun 2025 |
| 21 | Petro Plex Oil Co Inc. | Homosassa, FL 34448 | Oil & Gas Operator | Jul 2020 |
| 22 | Petro-Hunt Permian, LLC | Dallas, TX 75201 | Oil & Gas Operator | Jun 2025 |
| 23 | Petro-Raider LLC | Midland, TX 79702 | Oil & Gas Operator | Jun 2025 |
| 24 | Petro-Smith Operating LLC | Houston, TX 77010 | Oil & Gas Operator | Jun 2025 |
| 25 | Petrodata Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jun 2025 |
| 26 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
| 27 | Petroplex Energy Inc. | Midland, TX 79702 | Oil & Gas Operator | Jun 2025 |
| 28 | PG&E Resources Company | Houston, TX 77042 | Oil & Gas Operator | May 1995 |
| 29 | Pharaoh Oil & Gas, Inc. | MC Camey, TX 79752 | Oil & Gas Operator | Jun 2025 |
| 30 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 31 | Phoenix Hydrocarbons Operating | Midland, TX 79702 | Oil & Gas Operator | Jun 2024 |
| 32 | Pillar Energy, LLC | Charleston, WV 25312-5987-5987 | Oil & Gas Operator | Dec 2024 |
| 33 | Pinon Petroleum, Inc. | San Angelo, TX 76903 | Oil & Gas Operator | Apr 2004 |
| 34 | Pioneer Exploration Company | Houston, TX 77090 | Oil & Gas Operator | Apr 2025 |
| 35 | Pioneer Exploration, LLC | Houston, TX 77090 | Oil & Gas Operator | Apr 2025 |
| 36 | Pioneer Exploration, LTD. | Houston, TX 77090 | Oil & Gas Operator | Sep 2008 |
| 37 | Pioneer Natural Res. USA, Inc. | Irving, TX 75038 | Oil & Gas Operator | Jun 2025 |
| 38 | Pitco Investments, LTD. | Scottsdale, AZ 85261 | Oil & Gas Operator | Jan 2013 |
| 39 | Pitts Energy Co. | Midland, TX 79707 | Oil & Gas Operator | Jun 2025 |
| 40 | Plains Marketing, LP | Cushing, OK 74023 | Oil Operator | Jan 2012 |
| 41 | Plains Petroleum Operating Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2014 |
| 42 | Plains Production Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1995 |
| 43 | Pogo Panhandle 2004, L.P. | Houston, TX 77002 | Oil & Gas Operator | Oct 2017 |
| 44 | Pogo Producing Company | Houston, TX 77002 | Oil & Gas Operator | Jan 2008 |
| 45 | Pogo Producing Company LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2025 |
| 46 | PPC Operating Company LLC | Houston, TX 77279 | Oil & Gas Operator | Jul 2019 |
| 47 | Prasad, Hari Production Co. | Midland, TX 79701 | Oil & Gas Operator | Jun 2025 |
| 48 | Prasad, LTD. | Midland, TX 79701 | Oil & Gas Operator | Sep 2006 |
| 49 | Pride Energy Company | Tulsa, OK 74170 | Oil & Gas Operator | Jun 2025 |
| 50 | Prime Operating Company | Houston, TX 77024 | Oil & Gas Operator | Jun 2025 |
| 51 | Prize Operating Company | Grapevine, TX 76051 | Oil & Gas Operator | Aug 2016 |
| 52 | Probity Operating, LLC | Midland, TX 79708 | Oil & Gas Operator | Jul 2014 |
| 53 | Prospctv Invstmnt & TRDG Co, LTD | Tulsa, OK 74170 | Oil & Gas Operator | May 2001 |
| 54 | Psi Production, Inc. | Tyler, TX 75702 | Gas Operator | Jan 1994 |
| 55 | PT Petroleum, LLC | Argyle, TX 76226 | Oil & Gas Operator | Oct 2019 |
| 56 | Pure Resources, L.P. | Midland, TX 79701 | Oil & Gas Operator | Mar 2006 |
| 57 | Purvis Operating Co. | Midland, TX 79710 | Oil & Gas Operator | Jun 2025 |
| 58 | Purvis, J. H. | Midland, TX 79702 | Oil & Gas Operator | Dec 1994 |