| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | E. L. Larry | Oil & Gas Operator | Mar 1989 | |
| 2 | Eclipse Services, Inc. * | La Grange, TX 78945 | Oil & Gas Operator | Jul 2003 |
| 3 | Equitable Petroleum Corp. | Oil & Gas Operator | Jan 1999 | |
| 4 | Ergon Exploration, Inc. | Oil & Gas Operator | Jul 2023 | |
| 5 | Exchange Oil & Gas Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Oct 1987 |
| 6 | Exxon Corporation | Houston, TX 77210 | Oil & Gas Operator | Nov 2023 |