| 1 | P.O.&G. Operating, LLC | Houston, TX 77057 | Oil & Gas Operator | Mar 2025 |
| 2 | P4 Operating, LLC | Midland, TX 79710 | Oil & Gas Operator | Mar 2025 |
| 3 | Pa Prospect LLC | Columbus, MT 59019 | Oil & Gas Operator | Jul 2020 |
| 4 | Page Exploration | Midland, TX 79701 | Oil & Gas Operator | Apr 2007 |
| 5 | Palmer, J. M. | Keller, TX 76244 | Oil & Gas Operator | Aug 2009 |
| 6 | Palo Petroleum, Inc. | Dallas, TX 75360 | Oil & Gas Operator | Mar 2025 |
| 7 | Panada Exploration, Inc. | Tulsa, OK 74135 | Oil & Gas Operator | Jun 1996 |
| 8 | Pangea Corporation | Allen, TX 75013 | Oil & Gas Operator | Mar 2025 |
| 9 | Panhandle Oil & Gas Inc | Oklahoma City, OK 73112-5688 | Oil & Gas Operator | May 2007 |
| 10 | Pantera Energy Company | Amarillo, TX 79101 | Oil & Gas Operator | Mar 2025 |
| 11 | Parallel Petroleum Corporation | Midland, TX 79702 | Oil & Gas Operator | Jan 2010 |
| 12 | Parallel Petroleum LLC | Midland, TX 79702 | Oil & Gas Operator | Mar 2025 |
| 13 | Parker & Parsley Development Co. | Midland, TX 79702 | Oil & Gas Operator | May 1995 |
| 14 | Parker & Parsley Development L.P | Midland, TX 79702 | Oil & Gas Operator | Oct 2007 |
| 15 | Parsley Energy Operations, LLC | Irving, TX 75038 | Oil & Gas Operator | Jan 2021 |
| 16 | Partee Drilling Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Mar 2025 |
| 17 | Patriot Resources, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2017 |
| 18 | Patterson Petroleum LP | Snyder, TX 79550 | Oil & Gas Operator | Mar 2008 |
| 19 | Patterson Petroleum, Inc. | Snyder, TX 79550 | Oil & Gas Operator | Feb 2000 |
| 20 | Patton, E. N. Oil Company, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2025 |
| 21 | Pcore Exploration & Prod II LLC | Golden, CO 80401 | Oil & Gas Operator | Jun 2020 |
| 22 | Pearl Resources Operating Co.LLC | Houston, TX 77024 | Oil & Gas Operator | Mar 2025 |
| 23 | Pecos Crude LLC | Sugar Land, TX 77479 | Oil Operator | Mar 2025 |
| 24 | Pecos Production Company | Oklahoma City, OK 73154 | Oil & Gas Operator | Apr 2005 |
| 25 | Pecos River Exploration, LLC | Allen, TX 75013 | Oil & Gas Operator | Mar 2025 |
| 26 | Ped Oil Corporation | Midland, TX 79702 | Oil & Gas Operator | Mar 2025 |
| 27 | Pedco Resources Company | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2008 |
| 28 | Pedeco, Inc. | Casper, WY 82601 | Oil & Gas Operator | Mar 2008 |
| 29 | Pembrook Oil Company | Big Lake, TX 76932 | Oil & Gas Operator | May 1999 |
| 30 | Penn VIrginia Oil & Gas Corp | Houston, TX 77024 | Oil & Gas Operator | Dec 2018 |
| 31 | Pennzoil Exploration & Production Co. | Carthage, TX 75633 | Oil & Gas Operator | Mar 2008 |
| 32 | Pennzoil Petroleum Company | Houston, TX 77252 | Oil & Gas Operator | Nov 1999 |
| 33 | Peregrine Petroleum PRTNR, LTD. | Dallas, TX 75201 | Oil & Gas Operator | Mar 2025 |
| 34 | Performance Operating Partners, LLC | Shreveport, LA 71164 | Oil & Gas Operator | Mar 2025 |
| 35 | Perimeter Resource Company | Midland, TX 79702 | Oil & Gas Operator | Mar 2025 |
| 36 | Periscope Operating LLC | McKinney, TX 75069 | Oil & Gas Operator | Jun 2020 |
| 37 | Permian Resources Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Mar 2025 |
| 38 | Permian Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 39 | Peterson Oil And Gas LLC | Wichita Falls, TX 76310 | Oil & Gas Operator | Mar 2025 |
| 40 | Petex | Breckenridge, TX 76424 | Oil & Gas Operator | Mar 2025 |
| 41 | Petro-Hunt, L.L.C. | Dallas, TX 75201 | Oil & Gas Operator | Mar 2025 |
| 42 | Petrolero, LLC | Plano, TX 75026 | Oil & Gas Operator | Mar 2025 |
| 43 | Petroleum Technical Services Co. | Midland, TX 79707 | Oil & Gas Operator | Dec 2004 |
| 44 | Petrolia Group, L.L.C. | Katy, TX 77449 | Oil & Gas Operator | Mar 2025 |
| 45 | Petx Operating LLC | Sheridan, WY 82801 | Oil Operator | Mar 2025 |
| 46 | PF Operating Company | Wichita Falls, TX 76302 | Oil & Gas Operator | Aug 2003 |
| 47 | PG&E Resources Company | Houston, TX 77042 | Oil & Gas Operator | May 1995 |
| 48 | Pharaoh Oil & Gas, Inc. | MC Camey, TX 79752 | Oil & Gas Operator | Mar 2025 |
| 49 | Phillips 66 Company | Bartlesville, OK 74004 | Oil & Gas Operator | Aug 1997 |
| 50 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 51 | Phoenix Hydrocarbons Operating | Midland, TX 79702 | Oil & Gas Operator | Jun 2024 |
| 52 | Piedra Operating, LLC | Denver, CO 80202 | Oil & Gas Operator | May 2023 |
| 53 | Pillar Energy, LLC | Charleston, WV 25312-5987-5987 | Oil & Gas Operator | Dec 2024 |
| 54 | Pinnacle Mining Corporation | Midland, TX 79708 | Oil & Gas Operator | Mar 2025 |
| 55 | Pioneer Exploration Company | Houston, TX 77090 | Oil & Gas Operator | Jan 2025 |
| 56 | Pioneer Natural Res. USA, Inc. | Irving, TX 75038 | Oil & Gas Operator | Mar 2025 |
| 57 | Pitco Investments, LTD. | Scottsdale, AZ 85261 | Oil & Gas Operator | Jan 2013 |
| 58 | Pitts Energy Co. | Midland, TX 79707 | Oil & Gas Operator | Mar 2025 |
| 59 | Plains Marketing, LP | Cushing, OK 74023 | Oil & Gas Operator | Dec 2022 |
| 60 | Plains Petroleum Operating Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2014 |
| 61 | Plains Production Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1995 |
| 62 | Plateau Energy, LLC | Smyer, TX 79367 | Oil & Gas Operator | Dec 2022 |
| 63 | Pogo Panhandle 2004, L.P. | Houston, TX 77002 | Oil & Gas Operator | Oct 2017 |
| 64 | Pogo Producing Company | Houston, TX 77002 | Oil & Gas Operator | Jan 2008 |
| 65 | Porosity Oil LLC | Imperial, TX 79743 | Oil Operator | Mar 2025 |
| 66 | Portana Properties LLC | McKinney, TX 75072 | Oil Operator | Mar 2025 |
| 67 | PPC Operating Company LLC | Houston, TX 77279 | Oil & Gas Operator | Jul 2019 |
| 68 | Praxis Oil And Gas, LLC | Miami, FL 33145 | Oil Operator | Mar 2025 |
| 69 | Preferred Pipeline Corp. | Victoria, TX 77902 | Oil & Gas Operator | Feb 2025 |
| 70 | Premier Natural Resources, L.P. | Tulsa, OK 74105 | Oil & Gas Operator | Feb 2007 |
| 71 | Premier Natural Resources, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2025 |
| 72 | Pri Operating, LLC | Austin, TX 78730 | Oil & Gas Operator | Mar 2025 |
| 73 | Prickett Operating Company | Wichita Falls, TX 76302 | Oil & Gas Operator | Mar 2008 |
| 74 | Pride Energy Company | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2025 |
| 75 | Primal Energy Corporation | The Woodlands, TX 77380 | Oil & Gas Operator | Mar 2025 |
| 76 | Prime Operating Company | Houston, TX 77024 | Oil & Gas Operator | Mar 2025 |
| 77 | Primexx Operating Corporation | Dallas, TX 75206 | Oil & Gas Operator | Mar 2024 |
| 78 | Prize Operating Company | Grapevine, TX 76051 | Oil & Gas Operator | Aug 2016 |
| 79 | Production Management Associates | Plano, TX 75075 | Oil & Gas Operator | Mar 2025 |
| 80 | Production Marketing Assoc Inc | Plano, TX 75075 | Oil & Gas Operator | Mar 2025 |
| 81 | Proex Energy Management, L.L.C. | Spring, TX 77386 | Oil & Gas Operator | Mar 2025 |
| 82 | Progas Properties, Inc. | New Braunfels, TX 78132 | Oil & Gas Operator | Mar 2025 |
| 83 | Proline Energy Resources Inc | Sugar Land, TX 77479 | Oil & Gas Operator | Mar 2025 |
| 84 | Prospctv Invstmnt & TRDG Co, LTD | Tulsa, OK 74170 | Oil & Gas Operator | May 2001 |
| 85 | PT Petroleum, LLC | Argyle, TX 76226 | Oil & Gas Operator | Oct 2019 |
| 86 | Pure Resources, L.P. | Midland, TX 79701 | Oil & Gas Operator | Mar 2006 |
| 87 | Pyote Disposal Company | Pyote, TX 79777 | Oil Operator | Mar 2025 |
| 88 | Pyramid Gas Co | Midland, TX 79707 | Oil Operator | Mar 2025 |