| 1 | P,B&B Operating Inc. | Coleman, TX 76834 | Oil & Gas Operator | Oct 2025 |
| 2 | P1 Energy, LLC | Judson, TX 75660 | Oil & Gas Operator | Oct 2025 |
| 3 | Pace Oil And Gas Company | Austin, TX 78715 | Oil & Gas Operator | Oct 2025 |
| 4 | Page Energy | Eldorado, TX 76936 | Oil & Gas Operator | Mar 1997 |
| 5 | Page Oil & Gas, LLC | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 6 | Palo Petroleum, Inc. | Dallas, TX 75360 | Oil & Gas Operator | Oct 2025 |
| 7 | Panada Exploration, Inc. | Tulsa, OK 74135 | Oil & Gas Operator | Jun 1996 |
| 8 | Panhandle Oil & Gas Inc | Oklahoma City, OK 73112-5688 | Oil & Gas Operator | May 2007 |
| 9 | Parallel Petroleum Corporation | Midland, TX 79702 | Oil & Gas Operator | Jan 2010 |
| 10 | Parallel Petroleum LLC | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 11 | Parker & Parsley Development Co. | Midland, TX 79702 | Oil & Gas Operator | May 1995 |
| 12 | Parker & Parsley Development L.P | Midland, TX 79702 | Oil & Gas Operator | Oct 2007 |
| 13 | Patina Oil & Gas Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2016 |
| 14 | Patno Oil & Gas Company | Zapata, TX 78076 | Oil & Gas Operator | Oct 2025 |
| 15 | Patrick Pet. Corp. Of Michigan | Houston, TX 77227 | Oil & Gas Operator | Aug 1995 |
| 16 | Patterson Petroleum LP | Snyder, TX 79550 | Oil & Gas Operator | Mar 2008 |
| 17 | Pbex Operations, LLC | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 18 | Pearl, Bill H. Productions, Inc. | Corpus Chrsti, TX 78460 | Oil & Gas Operator | Oct 2025 |
| 19 | Pech Oil Co., No. 2 | Midland, TX 79702 | Oil & Gas Operator | Apr 2013 |
| 20 | Pecos Valley Management Co. | Dallas, TX 75206 | Oil & Gas Operator | Aug 2008 |
| 21 | Pedeco, Inc. | Casper, WY 82601 | Oil & Gas Operator | Mar 2008 |
| 22 | Penergy | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 23 | Pennzoil Exploration & Production Co. | Carthage, TX 75633 | Oil & Gas Operator | Mar 2008 |
| 24 | Pennzoil Petroleum Company | Houston, TX 77252 | Oil & Gas Operator | Nov 1999 |
| 25 | Perdido Energy, LLC | Houston, TX 77251 | Oil & Gas Operator | Oct 2025 |
| 26 | Perimeter Resource Company | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 27 | Permian Resources Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 28 | Permian Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 29 | Permian Resources, LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2018 |
| 30 | Permian Services Co., LLC | Midland, TX 79702 | Oil & Gas Operator | Sep 2013 |
| 31 | Permian West Corp. | Odessa, TX 79762 | Oil & Gas Operator | Oct 2025 |
| 32 | Petex | Breckenridge, TX 76424 | Oil & Gas Operator | Oct 2025 |
| 33 | Petro-Smith Operating LLC | Houston, TX 77010 | Oil & Gas Operator | Oct 2025 |
| 34 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
| 35 | Petroleum Technical Services Co. | Midland, TX 79707 | Oil & Gas Operator | Dec 2004 |
| 36 | Petroplex Equipment, Inc. | Midland, TX 79701 | Oil & Gas Operator | May 2019 |
| 37 | Petx Operating LLC | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 38 | Pharaoh Oil & Gas, Inc. | MC Camey, TX 79752 | Oil & Gas Operator | Oct 2025 |
| 39 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 40 | Piedra Operating, LLC | Denver, CO 80202 | Oil & Gas Operator | May 2023 |
| 41 | Pinon Petroleum, Inc. | San Angelo, TX 76903 | Oil & Gas Operator | Apr 2004 |
| 42 | Pioneer Exploration Company | Houston, TX 77090 | Oil & Gas Operator | Jul 2025 |
| 43 | Pioneer Natural Res. USA, Inc. | Spring, TX 77389 | Oil & Gas Operator | Oct 2025 |
| 44 | Pipeline Resources, Inc. | Corpus Chrsti, TX 78412 | Gas Operator | Aug 2003 |
| 45 | Pitts Energy Co. | Midland, TX 79707 | Oil & Gas Operator | Oct 2025 |
| 46 | Plains Exploration & Prod. Co. | Houston, TX 77002 | Oil & Gas Operator | Jul 2013 |
| 47 | Plains Marketing, LP | Cushing, OK 74023 | Oil Operator | Jan 2012 |
| 48 | Plains Production Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1995 |
| 49 | Platinum Exploration Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 50 | Pogo Producing Company | Houston, TX 77002 | Oil & Gas Operator | Jan 2008 |
| 51 | Pogo Producing Company LLC | Houston, TX 77002 | Oil & Gas Operator | Jul 2025 |
| 52 | Polaris Production Corp. | Midland, TX 79702 | Oil & Gas Operator | Jan 2024 |
| 53 | Pontotoc Oil Corp. | Midland, TX 79702 | Oil & Gas Operator | Feb 1996 |
| 54 | Praxis Energy, LLC | Midland, TX 79705 | Oil Operator | Apr 2002 |
| 55 | Prestco, LLC | Ozona, TX 76943 | Oil & Gas Operator | Mar 2025 |
| 56 | Pride Energy Company | Tulsa, OK 74170 | Oil & Gas Operator | Oct 2025 |
| 57 | Primal Energy Corporation | The Woodlands, TX 77380 | Oil & Gas Operator | Oct 2025 |
| 58 | Prime Operating Company | Houston, TX 77024 | Oil & Gas Operator | Oct 2025 |
| 59 | Primero Operating, Inc. | Roswell, NM 88202 | Oil & Gas Operator | Jun 2022 |
| 60 | Prize Operating Company | Grapevine, TX 76051 | Oil & Gas Operator | Aug 2016 |
| 61 | Probity Operating, LLC | Midland, TX 79708 | Oil & Gas Operator | Jul 2014 |
| 62 | Production Gathering Company, LP | Dallas, TX 75206 | Oil & Gas Operator | Oct 2025 |
| 63 | Proex Energy Management, L.L.C. | Spring, TX 77386 | Oil & Gas Operator | Oct 2025 |
| 64 | Progas Properties, Inc. | New Braunfels, TX 78132 | Oil & Gas Operator | Oct 2025 |
| 65 | Propel Energy, LLC | Houston, TX 77024 | Oil & Gas Operator | Sep 2013 |
| 66 | Prosper Oil & Gas,Inc. | Dallas, TX 75201 | Oil & Gas Operator | Oct 2025 |
| 67 | PT Petroleum, LLC | Argyle, TX 76226 | Oil & Gas Operator | Oct 2019 |
| 68 | Pure Resources, L.P. | Midland, TX 79701 | Oil & Gas Operator | Mar 2006 |
| 69 | PXP Texas Inc. | Houston, TX 77002 | Oil & Gas Operator | Feb 2007 |