| 1 | Alliance Petroleum Corp | Canton, OH 44718-2553 | Oil & Gas Operator | Apr 2026 |
| 2 | Anadarko E&P Onshore LLC | Houston, TX 77046 | Oil & Gas Operator | Jul 2026 |
| 3 | Apollo Resources LLC | | Oil & Gas Operator | Apr 2026 |
| 4 | Capital Oil & Gas Inc | Austintown, OH 44515-3033 | Oil & Gas Operator | Dec 2025 |
| 5 | CNG Development Co | | Oil & Gas Operator | Dec 2008 |
| 6 | CNX Gas Company LLC | Canonsburg, PA 15317 | Oil & Gas Operator | Apr 2026 |
| 7 | Consol Gas Company | Canonsburg, PA 15317 | Oil & Gas Operator | Dec 2021 |
| 8 | Coterra Energy Inc | Coraopolis, PA 15108-9862 | Oil & Gas Operator | Apr 2026 |
| 9 | Cottonwood Prod Co Inc | Buffalo, NY 14202-2212 | Gas Operator | Dec 2002 |
| 10 | Diversified Oil & Gas LLC | Jackson Center, PA 16133 | Oil & Gas Operator | Apr 2026 |
| 11 | Energy Corp Of Amer | | Oil & Gas Operator | Mar 2018 |
| 12 | Eqt Aro LLC | Canonsburg, PA 15317-1000 | Gas Operator | Apr 2026 |
| 13 | Eqt Chap, LLC | Canonsburg, PA 15317-1000 | Oil & Gas Operator | Apr 2026 |
| 14 | Eqt Production Company | Pittsburg, PA 15222 | Oil & Gas Operator | Apr 2026 |
| 15 | Equitable Prod Eastern States Exploration Inc | Snow Shoe, PA 16874-0178 | Gas Operator | Dec 2001 |
| 16 | Equitrans Inc | Cannonsburg, PA 15317 | Oil & Gas Operator | Dec 2018 |
| 17 | Exco Resources (Pa), LLC | Montoursville, PA 17754-2235 | Oil & Gas Operator | Apr 2026 |
| 18 | Exco Resources Pa Inc | Warrendale, PA 15086-6501 | Oil & Gas Operator | Dec 2011 |
| 19 | Greylock Conventional, LLC | Charleston, WV 25311 | Oil & Gas Operator | Apr 2026 |
| 20 | Linn Opr Inc | | Oil & Gas Operator | Dec 2007 |
| 21 | Linn Opr LLC | Indiana, PA 15701-8914 | Gas Operator | Dec 2004 |
| 22 | LPR Energy, LLC | Dallas, TX 75219 | Oil & Gas Operator | Jul 2026 |
| 23 | Mid East Oil Co | Indiana, PA 15701-5378 | Gas Operator | Dec 2006 |
| 24 | MTN V Oil & Gas Inc | | Oil & Gas Operator | Apr 2026 |
| 25 | NCL Natural Resources LLC | Spring, TX 77381-5261 | Oil & Gas Operator | Dec 2017 |
| 26 | Phoenix Energy Prod Inc | Freeport, PA 16229-1126 | Oil & Gas Operator | Dec 2025 |
| 27 | Pin Oak Energy Partners LLC | Akron, OH 44311 | Oil & Gas Operator | Apr 2026 |
| 28 | PPG Oper LLC | State College, PA 16801-7569 | Gas Operator | Apr 2026 |
| 29 | Range Resources Appalachia LLC | Canonsburg, PA 15317 | Oil & Gas Operator | Apr 2026 |
| 30 | Somerset Oil & Gas Company | Portland, TX 78374 | Oil & Gas Operator | Dec 2006 |
| 31 | Stonewall Gas Co | Jane Lew, WV 26378 | Oil & Gas Operator | Dec 1999 |
| 32 | Texas Keystone Inc | Oakmont, PA 15139-2072 | Oil & Gas Operator | Nov 2017 |
| 33 | Ultra Resources Inc | Houston, TX 77060 | Oil & Gas Operator | Sep 2018 |
| 34 | WHC Oper LLC | | Gas Operator | Dec 2025 |
| 35 | Windfall Oil & Gas Inc | Falls Creek, PA 15840-2617 | Gas Operator | Dec 2024 |
| 36 | XPR Resources LLC | Canonsburg, PA 15317-5862 | Gas Operator | Apr 2026 |
| 37 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | Jul 2026 |