| 1 | P & C Energy Co | Allegany, NY 14706-9615 | Oil Operator | Dec 2015 |
| 2 | Pa DCNR State Parks Bur | Harrisburg, PA 17105-8551 | Gas Operator | Dec 2025 |
| 3 | Pa Dep Ofc Oil & Gas MGMT | Harrisburg, PA 17105-8765 | Gas Operator | Dec 1990 |
| 4 | Pa Gen Energy Co LLC | Warren, PA 16365-2510 | Oil & Gas Operator | Mar 2026 |
| 5 | Pa Gen Energy Corp | Warren, PA 16365-2510 | Oil & Gas Operator | Dec 2002 |
| 6 | Pa Land Holdings Corp | Waynesburg, PA 15370-3020 | Oil & Gas Operator | Dec 2011 |
| 7 | Pa Mineral SVCS LLC | Indiana, PA 15701 | Oil & Gas Operator | Dec 2025 |
| 8 | Pa Prod SVC Inc | Indiana, PA 15701-0421 | Oil & Gas Operator | Dec 2025 |
| 9 | Pa State Sys Of Higher Ed Indiana Univ | Indiana, PA 15705-0001 | Gas Operator | Dec 2012 |
| 10 | Papesch Robert J | Waterford, PA 16441-4607 | Gas Operator | Dec 2025 |
| 11 | Parker & Parsley Dev LP | Irving, TX 75039-3745 | Oil & Gas Operator | Mar 2015 |
| 12 | Patalon Robert E | Erie, PA 16505-0444 | Gas Operator | Dec 2025 |
| 13 | Patrick Shipley | Indiana, PA 15701-6501 | Oil & Gas Operator | Dec 2016 |
| 14 | Patriot Exploration Corp | Stahlstown, PA 15687-1301 | Oil & Gas Operator | Dec 2025 |
| 15 | PDC Mountaineer LLC | Bridgeport, WV 26330-9665 | Oil & Gas Operator | Dec 2017 |
| 16 | Peak Energy LLC | Coffeyville, KS 67337 | Oil & Gas Operator | Dec 2025 |
| 17 | Pecora Enterprises | Bradford, PA 16701-1026 | Oil & Gas Operator | Dec 1999 |
| 18 | Peggy J Bell | Sheffield, PA 16347-0776 | Oil & Gas Operator | Dec 2004 |
| 19 | Pembrooke Oil & Gas Inc | Franklin, PA 16323-7760 | Oil & Gas Operator | Dec 2025 |
| 20 | Pemco Gas Inc | Indian Harbor B, FL 32937 | Oil & Gas Operator | Dec 1997 |
| 21 | Penn VIew Exploration Inc | Blairsville, PA 15717-7961 | Oil & Gas Operator | Mar 2026 |
| 22 | Penn VIrginia Oil & Gas Corp | Houston, TX 77024 | Oil & Gas Operator | Dec 2023 |
| 23 | Penneco Oil Company, Inc. | Delmont, PA 15626-2408 | Oil & Gas Operator | Dec 2025 |
| 24 | Pennenergy Resources LLC | Pittsburgh, PA 15275-1063 | Oil & Gas Operator | Mar 2026 |
| 25 | Pennfield Energy LLC | Erie, PA 16510-4760 | Oil & Gas Operator | Dec 2021 |
| 26 | Pennhills Resources LLC | MT. Jewett, PA 16740 | Oil & Gas Operator | Mar 2026 |
| 27 | Pennzoil Prod Co | Vienna, WV 26105-2141 | Oil & Gas Operator | Dec 2000 |
| 28 | Pentex Energy, Inc. | Midland, TX 79701 | Oil & Gas Operator | Dec 2003 |
| 29 | Peoples Gas Co LLC | Butler, PA 16001-4904 | Oil & Gas Operator | Dec 2005 |
| 30 | Peoples Natural Gas Co LLC | Pittsburgh, PA 15212 | Gas Operator | Dec 2016 |
| 31 | Petro Dev Corp | Bridgeport, WV 26330-0026 | Oil & Gas Operator | Dec 2013 |
| 32 | Petro North LTD | Smethport, PA 16749-0742 | Oil & Gas Operator | Dec 2025 |
| 33 | Petro SVC Partners Inc | Indiana, PA 15701-8556 | Oil & Gas Operator | Dec 2025 |
| 34 | Petro Ventures Inc | Oklahoma City, OK 73118 | Oil & Gas Operator | Dec 2019 |
| 35 | Petrobank Opr Co | Denver, CO 80202-4675 | Gas Operator | Dec 1992 |
| 36 | Phillips Exploration Inc | Warrendale, PA 15086 | Oil & Gas Operator | Dec 2012 |
| 37 | Phillips Prod Co | Warrendale, PA 15086-7537 | Oil & Gas Operator | Dec 2011 |
| 38 | Phoenix Energy LLC | Warren, PA 16365-2302 | Oil & Gas Operator | Dec 2025 |
| 39 | Phoenix Energy Prod Inc | Freeport, PA 16229-1126 | Oil & Gas Operator | Dec 2025 |
| 40 | Pierce & Petersen | Warren, PA 16365 | Oil & Gas Operator | Dec 2025 |
| 41 | Pierce James E | Warren, PA 16365-0627 | Oil & Gas Operator | Dec 2011 |
| 42 | Pillar Energy Pa LLC | Charleston, WV 25312-5987 | Oil & Gas Operator | Dec 2025 |
| 43 | Pin Oak Energy Partners LLC | Akron, OH 44311 | Oil & Gas Operator | Mar 2026 |
| 44 | Pine City Gas LLC | Lucinda, PA 16235-0060 | Oil & Gas Operator | Dec 2025 |
| 45 | Pine Ridge Energy | Sugar Grove, PA 16350-6934 | Oil & Gas Operator | Dec 2025 |
| 46 | Pine Valley Resources Inc | West Seneca, NY 14224-2244 | Oil & Gas Operator | Dec 1991 |
| 47 | Plants & Goodwin Inc | Bradford, PA 16701-3733 | Oil & Gas Operator | Dec 2018 |
| 48 | Pleasant Oil & Gas | Clarendon, PA 16313-4532 | Oil & Gas Operator | Dec 2025 |
| 49 | PNB Petrol Haddad & Brooks Inc | Atlanta, GA 30305-1555 | Oil & Gas Operator | Dec 1989 |
| 50 | Port Erie Plastics Inc | Harborcreek, PA 16421-1018 | Gas Operator | Dec 2025 |
| 51 | Potter McKean Resources Of Pa | Shinglehouse, PA 16748-2631 | Gas Operator | Dec 2007 |
| 52 | Powder Mill Gas Co | New Bethlehem, PA 16242-2252 | Oil & Gas Operator | Dec 2025 |
| 53 | Powell Donovan L | Spraggs, PA 15362-2019 | Gas Operator | Dec 2025 |
| 54 | Power Gas MKT & Trans Inc | Akron, OH 44311-1062 | Oil & Gas Operator | Dec 2008 |
| 55 | PPG Oper LLC | State College, PA 16801-7569 | Gas Operator | Mar 2026 |
| 56 | PPP Future Dev Inc | Alexander, NY 14005 | Oil & Gas Operator | Dec 2025 |
| 57 | Puma Energy Inc | | Gas Operator | Dec 1999 |
| 58 | Pve Oil Corp Inc | Blairsville, PA 15717-7961 | Oil & Gas Operator | Dec 2025 |