| 1 | Lake Country Disposal II LLC | | Oil Operator | Jan 2024 |
| 2 | Lake Country Disposal LLC | | Oil Operator | Jan 2024 |
| 3 | Lakota Oil & Gas | Comanche, OK 73529-9602 | Oil & Gas Operator | May 2014 |
| 4 | Laredo Petroleum, Inc. | Tulsa, OK 74120 | Oil & Gas Operator | Mar 2023 |
| 5 | Latigo Drilling Corporation | Duncan, OK 73534-2150 | Oil & Gas Operator | Feb 2024 |
| 6 | Lavrco Energie Inc | Duncan, OK 73533 | Oil & Gas Operator | Jan 2024 |
| 7 | Le Norman Energy Corporation | Duncan, OK 73534 | Oil & Gas Operator | Nov 2014 |
| 8 | Le Norman Partners LLC | Duncan, OK 73533-9523 | Oil & Gas Operator | Feb 2012 |
| 9 | Lema Petroleum Inc | Holdenville, OK 74848-0957 | Oil & Gas Operator | Jan 2024 |
| 10 | Lewis J K | Duncan, OK 73534-1742 | Oil & Gas Operator | Apr 2015 |
| 11 | Lewis Oil Operations LLC | Ratliff City, OK 73481-0220 | Oil & Gas Operator | Feb 2024 |
| 12 | Likins-Foster Honolulu Corp | Foster City, CA 94404 | Oil & Gas Operator | Feb 2015 |
| 13 | Linam Harry Dba Sooner State Production | Marlow, OK 73055-0583 | Oil & Gas Operator | Apr 2015 |
| 14 | Linam Richard Dwayne | Marlow, OK 73055-8658 | Oil Operator | Feb 2024 |
| 15 | Locators Oil And Gas Inc | Guthrie, OK 73044-0130 | Oil & Gas Operator | Oct 2022 |
| 16 | London William W | Oklahoma City, OK 73116 | Oil & Gas Operator | Nov 2015 |
| 17 | Longacre Oil & Gas | Enid, OK 73702 | Oil & Gas Operator | Mar 2013 |
| 18 | Louisiana Land & Exploration Co. | Houston, TX 77210 | Oil & Gas Operator | Sep 2013 |
| 19 | Lucky Oil Company | Comanche, OK 73529-0009 | Oil Operator | Feb 2024 |
| 20 | LX4 LLC | | Oil Operator | Jan 2024 |