| 1 | L & B Energy LLP | Kingsville, OH 44048 | Oil & Gas Operator | Dec 2023 |
| 2 | L & H Energy Co Inc | Knox, PA 16232-4874 | Oil & Gas Operator | Dec 2025 |
| 3 | Lahd Energy Inc | Canton, OH 44709 | Gas Operator | Dec 2009 |
| 4 | Lake Erie Energy Part LLC | Erie, PA 16505-4760 | Oil & Gas Operator | Dec 2012 |
| 5 | Langasco Energy Corp | Alliance, OH 44601 | Oil & Gas Operator | Dec 1987 |
| 6 | Laurel Mountain Production | Pittsburgh, PA 15241-1633 | Oil & Gas Operator | Feb 2026 |
| 7 | Leali & Leali Oil Inc | Hermitage, PA 16148-9020 | Oil & Gas Operator | Dec 2016 |
| 8 | Leatherwood, LLC | Canonsburg, PA 15317-6506 | Oil & Gas Operator | Dec 2023 |
| 9 | Leboeuf MFG Inc | Waterford, PA 16441-0458 | Gas Operator | Dec 1990 |
| 10 | Lee E & M Lee Minter | New Kensington, PA 15068-1440 | Gas Operator | Dec 2003 |
| 11 | Lee Lynn MGMT Co | Indiana, PA 15701-3400 | Oil & Gas Operator | Dec 1991 |
| 12 | Legacy Ogc LLC | Erie, PA 16509 | Oil & Gas Operator | Dec 2025 |
| 13 | Lenape Resources Corp | | Oil & Gas Operator | Dec 2000 |
| 14 | Lendrum Energy LLC | Cranberry, PA 16319-4009 | Oil & Gas Operator | Dec 2025 |
| 15 | Lightning Oil Co LTD | Mentor, OH 44060-4963 | Gas Operator | Dec 1998 |
| 16 | Lincoln MGMT Co | Greensburg, PA 15601-5200 | Oil & Gas Operator | Dec 2017 |
| 17 | Lindell & Maney | Warren, PA 16365-3643 | Oil & Gas Operator | Dec 2008 |
| 18 | Lindell & Maney LLC | Warren, PA 16365-3670 | Oil & Gas Operator | Dec 2025 |
| 19 | Linn Opr Inc | Indiana, PA 15701-8914 | Oil & Gas Operator | Dec 2007 |
| 20 | Linn Opr LLC | Indiana, PA 15701-8914 | Gas Operator | Dec 2004 |
| 21 | Lion Energy Co LLC | Wexford, PA 15090-6315 | Oil & Gas Operator | Dec 2014 |
| 22 | Loan Asset Issuer LLC, Series 2021 NG-1 | New York, NY 10022 | Oil & Gas Operator | Feb 2026 |
| 23 | Locin Oil Corporation | Katy, TX 77494 | Oil & Gas Operator | Apr 2026 |
| 24 | Lola Energy Petroco LLC | Canonsburg, PA 15317 | Gas Operator | Feb 2026 |
| 25 | LPR Energy, LLC | Dallas, TX 75219 | Oil & Gas Operator | Apr 2026 |
| 26 | LT Oil Co LLC | Pleasantville, PA 16341-0144 | Oil Operator | Dec 2025 |
| 27 | Lulu & Thomas Kavouras | Apollo, PA 15613-1108 | Oil & Gas Operator | Dec 2023 |