| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Eagle Rock Mid-Continent Operating LLC | Tulsa, OK 74103-3703 | Oil & Gas Operator | Nov 2025 |
| 2 | Eastbrook Of Fairview Inc | Fairview, OK 73737-0148 | Oil Operator | Aug 2013 |
| 3 | Encore Operating LP | Plano, TX 75024 | Oil & Gas Operator | Dec 2025 |
| 4 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2026 |
| 5 | EOG Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 6 | Executive Properties Inc | Amarillo, TX 79110 | Oil & Gas Operator | Aug 1994 |