| 1 | L E Jones Operating Inc | Duncan, OK 73534 | Oil & Gas Operator | Feb 2024 |
| 2 | Lake Country Disposal II LLC | | Oil Operator | Jan 2024 |
| 3 | Lake Country Disposal LLC | | Oil Operator | Jan 2024 |
| 4 | Latigo Drilling Corporation | Duncan, OK 73534-2150 | Oil & Gas Operator | Feb 2024 |
| 5 | Le Norman Energy Corporation | Duncan, OK 73534 | Oil & Gas Operator | Nov 2014 |
| 6 | Le Norman Partners LLC | Duncan, OK 73533-9523 | Oil & Gas Operator | Feb 2012 |
| 7 | Leeman Energy Corporation | Oklahoma City, OK 73118-1802 | Oil & Gas Operator | Mar 2015 |
| 8 | Lemley Oil Corporation | Sulphur, OK 73086-9316 | Oil & Gas Operator | Dec 2023 |
| 9 | Lewis Oil Operations LLC | Ratliff City, OK 73481-0220 | Oil & Gas Operator | Feb 2024 |
| 10 | Likins-Foster Honolulu Corp | Foster City, CA 94404 | Oil & Gas Operator | Feb 2015 |
| 11 | Lobar Oil Co LLC | Oklahoma City, OK 73116-1516 | Oil & Gas Operator | Jan 2024 |
| 12 | London William W | Oklahoma City, OK 73116 | Oil & Gas Operator | Nov 2015 |
| 13 | London William W Inc | Oklahoma City, OK 73116-5116 | Oil & Gas Operator | Apr 2016 |
| 14 | LX4 LLC | | Oil Operator | Jan 2024 |