| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Eads Operating C | Oil Operator | Jun 1990 | |
| 2 | Elk Oil Company | Overland Park, KS 66212 | Oil & Gas Operator | Sep 2007 |
| 3 | Entransco Energy LLC | Dewey, OK 74029 | Oil & Gas Operator | Jun 2020 |
| 4 | Evans Jay Oil Co | Iola, KS 66749 | Oil Operator | Apr 2001 |
| 5 | Exodus Gas & Oil LLC | Houston, TX 77002 | Oil & Gas Operator | Jan 2024 |