| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Labarge Minerals Inc | Labarge, WY 83123 | Oil & Gas Operator | Jan 2020 |
| 2 | Lagniappe Interest Inc | Evergreen, CO 80439 | Oil & Gas Operator | Jun 2006 |
| 3 | Lance Oil & Gas Company Inc | Kirtland, NM 87417 | Oil & Gas Operator | Mar 2013 |
| 4 | Lear Petroleum Exploration | Oil & Gas Operator | Jul 2013 | |
| 5 | Legacy Reserves Operating LP | Denver, CO 80202 | Oil & Gas Operator | May 2024 |
| 6 | Levinson Partners Corporation | Denver, CO 80202 | Oil & Gas Operator | Jul 1995 |
| 7 | Linn Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Jan 2019 |
| 8 | Lodestone Operating | Portland, TX 78374 | Oil & Gas Operator | Mar 2024 |
| 9 | Luff Exploration | Denver, CO 80203 | Oil & Gas Operator | Dec 2006 |
| 10 | Lyco Operating Company | Dallas, TX 75206 | Gas Operator | Dec 1997 |