| 1 | Amer Natural Resources LLC | Rural Valley, PA 16249-0306 | Oil & Gas Operator | Dec 2018 |
| 2 | Ams Energy LLC | Herman, PA 16039-0156 | Oil & Gas Operator | May 2025 |
| 3 | Anegada Energy LLC | Canonsburg, PA 15317-0400 | Gas Operator | May 2025 |
| 4 | Apollo Gas Co | Pittsburgh, PA 15236-1435 | Gas Operator | Dec 1991 |
| 5 | Apollo Resources LLC | Vintondale, PA 15961-0222 | Oil & Gas Operator | May 2025 |
| 6 | Armstrong Gas Co LLC | Kittanning, PA 16201-2269 | Oil & Gas Operator | Dec 2018 |
| 7 | Atlas Resources Inc | Coraopolis, PA 15108-0611 | Oil & Gas Operator | Dec 2007 |
| 8 | Atlas Resources LLC | Pittsburgh, PA 15275-1033 | Oil & Gas Operator | Jun 2018 |
| 9 | Big Dog Energy LLC | Sewickley, PA 15143-8782 | Gas Operator | Apr 2025 |
| 10 | Blair Harold L | Petrolia, PA 16050-1809 | Oil & Gas Operator | Dec 2020 |
| 11 | BLX Inc | Edmond, OK 73013 | Oil & Gas Operator | May 2025 |
| 12 | Burgly Gas & Oil Co Inc | Apollo, PA 15613-0015 | Gas Operator | Dec 2024 |
| 13 | C & D Gas Co | Apollo, PA 15613-9714 | Oil & Gas Operator | Dec 2024 |
| 14 | Casella Charles J | Avonmore, PA 15618-1028 | Oil & Gas Operator | Dec 2015 |
| 15 | CNX Gas Company LLC | Canonsburg, PA 15317 | Oil & Gas Operator | May 2025 |
| 16 | Columbia Natural Res Inc | Charleston, WV 25362-0070 | Gas Operator | Dec 2008 |
| 17 | Consol Gas Company | Canonsburg, PA 15317 | Oil & Gas Operator | Dec 2021 |
| 18 | D & B Gas Prod LLC | Kittanning, PA 16201-7123 | Oil & Gas Operator | Dec 2024 |
| 19 | Dannic Energy Corp | Indiana, PA 15701-1532 | Oil & Gas Operator | Dec 2024 |
| 20 | Developed Resources Inc | Cheswick, PA 15024-1351 | Oil & Gas Operator | Dec 2024 |
| 21 | Diversified Oil & Gas LLC | Jackson Center, PA 16133 | Oil & Gas Operator | May 2025 |
| 22 | Diversified Production LLC | Keithville, LA 71047 | Oil & Gas Operator | Jul 2025 |
| 23 | DL Resources Inc | Ludlow, PA 16333-0039 | Oil & Gas Operator | Dec 2024 |
| 24 | Elder Oil & Gas Co | Parker, PA 16049-6426 | Oil & Gas Operator | Dec 2024 |
| 25 | Em Energy Pa LLC | Canonsburg, PA 15317-5860 | Oil & Gas Operator | Jun 2020 |
| 26 | EOG Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jul 2025 |
| 27 | Exco Resources (Pa), LLC | Dallas, TX 75251-2224 | Oil & Gas Operator | May 2025 |
| 28 | Exco Resources Pa Inc | Warrendale, PA 15086-6501 | Oil & Gas Operator | Dec 2011 |
| 29 | Farrington & Hepler Gas & Oil Inc | Seneca, PA 16346-0546 | Oil & Gas Operator | Dec 2024 |
| 30 | Fawnwood Energy Inc | Bruin, PA 16022-0157 | Oil & Gas Operator | Dec 2019 |
| 31 | Flanigan Bros | Edinboro, PA 16412-1443 | Oil & Gas Operator | Dec 2024 |
| 32 | Geopetro LLC | Worthington, OH 43085-2316 | Oil & Gas Operator | May 2025 |
| 33 | Graham Michael D | Oakdale, PA 15071-1088 | Oil & Gas Operator | Dec 2021 |
| 34 | Henry Patrick K | Chicora, PA 16025-4502 | Oil & Gas Operator | Dec 2024 |
| 35 | Herman Riemer Gas Co | Sarver, PA 16055-8507 | Oil & Gas Operator | Dec 2016 |
| 36 | Huntley & Huntley Inc | Monroeville, PA 15146-2302 | Oil & Gas Operator | Dec 2019 |
| 37 | Interstate Gas MKT Inc | Indiana, PA 15701 | Oil & Gas Operator | Dec 2018 |
| 38 | Isaacs Scott J Jr | Butler, PA 16002-0059 | Gas Operator | May 2025 |
| 39 | John F & Lewis L Garing | Chicora, PA 16025-2037 | Oil Operator | Dec 2024 |
| 40 | Kis Oil & Gas Inc | Brookville, PA 15825-4210 | Oil & Gas Operator | Dec 2014 |
| 41 | Laurel Mountain Production | Pittsburgh, PA 15241-1633 | Oil & Gas Operator | May 2025 |
| 42 | Lola Energy Petroco LLC | Canonsburg, PA 15317 | Gas Operator | May 2025 |
| 43 | MDS Energy Dev LLC | Kittanning, PA 16201-4403 | Oil & Gas Operator | May 2025 |
| 44 | Pa Mineral SVCS LLC | Indiana, PA 15701 | Oil & Gas Operator | Dec 2024 |
| 45 | Parker & Parsley Dev LP | Irving, TX 75039-3745 | Oil & Gas Operator | Mar 2015 |
| 46 | Patriot Exploration Corp | Stahlstown, PA 15687-1301 | Oil & Gas Operator | Dec 2024 |
| 47 | Penn VIew Exploration Inc | Blairsville, PA 15717-7961 | Oil & Gas Operator | Dec 2024 |
| 48 | Penneco Oil Company, Inc. | Delmont, PA 15626-2408 | Oil & Gas Operator | Dec 2024 |
| 49 | Pennenergy Resources LLC | Pittsburgh, PA 15275-1063 | Oil & Gas Operator | May 2025 |
| 50 | Peoples Gas Co LLC | Butler, PA 16001-4904 | Oil & Gas Operator | Dec 2005 |
| 51 | Phillips Exploration Inc | Warrendale, PA 15086 | Oil & Gas Operator | Dec 2012 |
| 52 | Pin Oak Energy Partners LLC | Akron, OH 44311 | Oil & Gas Operator | May 2025 |
| 53 | Portman Acres | Butler, PA 16002-9107 | Gas Operator | Dec 2024 |
| 54 | Rabbitt C Michael | Chicora, PA 16025-1916 | Oil & Gas Operator | Dec 2015 |
| 55 | Range Opr Co | Yatesboro, PA 16263-0235 | Oil & Gas Operator | Dec 1999 |
| 56 | Range Resources Appalachia LLC | Canonsburg, PA 15317 | Oil & Gas Operator | May 2025 |
| 57 | Re Gas Dev LLC | State College, PA 16801-7085 | Oil & Gas Operator | Sep 2018 |
| 58 | Redmill Drilling | Kittanning, PA 16201-7123 | Oil & Gas Operator | May 2025 |
| 59 | Rex Energy Operating Corp. | State College, PA 16801 | Oil & Gas Operator | Jun 2012 |
| 60 | RJ Schreiner SR | Freedom, PA 15042-9353 | Oil & Gas Operator | Dec 2015 |
| 61 | Schrecengost Fred M | Sligo, PA 16255-0216 | Oil & Gas Operator | Dec 2016 |
| 62 | Sme Well SVC Inc | Herman, PA 16039-0156 | Oil & Gas Operator | Dec 2024 |
| 63 | Snyder Bros Inc | Kittanning, PA 16201 | Oil & Gas Operator | May 2025 |
| 64 | Somerset Oil & Gas Company | Portland, TX 78374 | Oil & Gas Operator | Dec 2006 |
| 65 | Swepi LP | Houston, TX 77079 | Oil & Gas Operator | Jul 2020 |
| 66 | Ter Ex Inc | Butler, PA 16002-8638 | Gas Operator | Dec 1994 |
| 67 | Texas Keystone Inc | Oakmont, PA 15139-2072 | Oil & Gas Operator | Nov 2017 |
| 68 | Timberline Energy Inc | Franklin, PA 16323-0269 | Oil & Gas Operator | Dec 2024 |
| 69 | Turm Oil Inc | Butler, PA 16002-0471 | Oil & Gas Operator | Dec 2024 |
| 70 | TW Phillips Gas Supply Corp | Butler, PA 16001-4904 | Oil & Gas Operator | Dec 2011 |
| 71 | Us Energy Exploration Corp | Rural Valley, PA 16249 | Oil & Gas Operator | Mar 2025 |
| 72 | Vec Energy LLC | Kittanning, PA 16201-5022 | Oil & Gas Operator | May 2025 |
| 73 | Vernard L Shumaker | Apollo, PA 15613-0249 | Gas Operator | Dec 2024 |
| 74 | Vista Opr Inc | Pittsburgh, PA 15241-1633 | Oil & Gas Operator | Dec 2024 |
| 75 | William McIntire Coal Oil & Gas | Shelocta, PA 15774-0171 | Oil & Gas Operator | May 2022 |
| 76 | Wilmoth Interests, Inc. | Marion Center, PA 15759 | Oil & Gas Operator | Mar 2025 |
| 77 | Winfall Energy Inc N V | Vandergrift, PA 15690-2001 | Oil & Gas Operator | Dec 2024 |
| 78 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | Jul 2025 |