| 1 | L & M Petroleum Co | Reno, OH 45773 | Oil & Gas Operator | Dec 1987 |
| 2 | L & S Oil And Gas | Newark, OH 43055-8732-8732 | Oil & Gas Operator | Dec 2014 |
| 3 | Lahd Energy Inc | Canton, OH 44709 | Gas Operator | Dec 2009 |
| 4 | Lake Energy LLC | Chagrin Falls, OH 44023 | Oil & Gas Operator | Dec 2023 |
| 5 | Lake Region Oil Inc | Massillon, OH 44648 | Oil & Gas Operator | Dec 2023 |
| 6 | Lakewood Operating, LTD. | Midland, TX 79702 | Oil & Gas Operator | Nov 2024 |
| 7 | Landmark 4 LLC | Dalton, OH 44618-1111 | Oil & Gas Operator | Dec 2023 |
| 8 | Landprovest Inc | Cambridge, OH 43725-858-858 | Oil & Gas Operator | Dec 1993 |
| 9 | Lang Larry D | Beverly, OH 45715 | Oil & Gas Operator | Dec 2023 |
| 10 | Langasco Energy Corp | Alliance, OH 44601 | Oil & Gas Operator | Dec 1987 |
| 11 | Larry H Wright Inc | Naples, FL 34108-2156-2156 | Oil & Gas Operator | Dec 1993 |
| 12 | Lauber Floyd | Dayton, OH 45415 | Oil & Gas Operator | Dec 1997 |
| 13 | Layline Oil And Gas LLC | Marion, MI 49665 | Oil & Gas Operator | Jul 2024 |
| 14 | LBJ Drilling Co Inc | Martinsburg, OH 43037 | Oil & Gas Operator | Dec 2023 |
| 15 | Leach Joseph L | Gallipolis, OH 45631 | Oil & Gas Operator | Dec 2023 |
| 16 | Leader Equities Inc | Columbus, OH 43214 | Oil & Gas Operator | Dec 1988 |
| 17 | Lekan James V | Ashland, OH 44805 | Oil & Gas Operator | Dec 1997 |
| 18 | Lengacher William P | Creston, OH 44217 | Oil & Gas Operator | Dec 2022 |
| 19 | Leslie Oil & Gas Co Inc | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1991 |
| 20 | Letog LLC | Orwell, OH 44076 | Oil & Gas Operator | Dec 2023 |
| 21 | Levengood Oil & Gas(Us)In | Dover, OH 44621-2900-2900 | Oil & Gas Operator | Dec 1997 |
| 22 | Lewis Lawrence W & Kimberly D | Beverly, OH 45715 | Oil & Gas Operator | Dec 2023 |
| 23 | Liberty Oil And Gas Corp. | Olney, IL 62450-2489-2489 | Oil & Gas Operator | Dec 2021 |
| 24 | Lighthizer Charles O | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1997 |
| 25 | Lincoln Oil Well Service | Riverside, IL 60546 | Oil & Gas Operator | Dec 1990 |
| 26 | Lippizan Petroleum, Inc. | Ellenboro, WV 26346 | Oil & Gas Operator | Dec 2023 |
| 27 | Lishberg Petroleum Inc | Jerusaleum, OH 43747 | Oil & Gas Operator | Dec 2023 |
| 28 | LLP Gas And Oil Corporation | Dover, OH 44622 | Oil & Gas Operator | Dec 2023 |
| 29 | Log Energy | MT Gilead, OH 43338 | Oil Operator | Dec 2023 |
| 30 | Logan Clay Prod Company | Logan, OH 43138 | Oil & Gas Operator | Dec 2005 |
| 31 | Loma Enterprises Inc | Cortland, OH 44410 | Oil & Gas Operator | Dec 1998 |
| 32 | Lothes John W | Newark, OH 43055 | Oil & Gas Operator | Dec 2023 |
| 33 | Lucas Well Service, Inc. | Parkersburg, WV 26101 | Oil & Gas Operator | Dec 2021 |
| 34 | Ludco Inc | Caledonia, OH 43314 | Oil & Gas Operator | Dec 1986 |
| 35 | Ludlow Oil & Gas Company LLC | New Matamoras, OH 45767-5058-5058 | Oil & Gas Operator | Dec 2023 |
| 36 | Ludwig Cleo R | Caledonia, OH 43314 | Oil & Gas Operator | Dec 1987 |
| 37 | Luling Oil & Gas Co Inc | San Antonio, TX 78209 | Oil Operator | Dec 1986 |
| 38 | Luoil Inc | Corning, OH 43730 | Oil & Gas Operator | Dec 2023 |
| 39 | Lutes Daun | New Matamoras, OH 45767 | Oil & Gas Operator | Dec 2023 |
| 40 | Lydic, W. J., Inc. | Zanesville, OH 43702-2310-2310 | Oil & Gas Operator | Jan 2005 |
| 41 | Lynn Riggs LLC | Sebring, OH 44672 | Oil & Gas Operator | Dec 2023 |