| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | E.G. Operating | Dallas, TX 75206 | Oil & Gas Operator | Mar 2008 |
| 2 | Eagle Oil & Gas Co. | Dallas, TX 75225 | Oil & Gas Operator | May 2024 |
| 3 | Eagleridge Operating, LLC | Dallas, TX 75219 | Oil & Gas Operator | May 2024 |
| 4 | Encana Oil & Gas (USA) Inc. | Denver, CO 80202 | Oil & Gas Operator | Oct 2020 |
| 5 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | May 2024 |
| 6 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | May 2024 |
| 7 | Evarado Oil Company | Strawn, TX 76475 | Oil & Gas Operator | May 2024 |
| 8 | Expanding Energy Corporation | New Braunfels, TX 78132 | Oil & Gas Operator | Mar 2008 |