| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Enerco Exploration & MGMT. Co. | Oil & Gas Operator | Aug 1981 | |
| 2 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Oct 2025 |
| 3 | Enervest Production Partners, LTD. | Gas Operator | Nov 2024 | |
| 4 | Ensource Inc | Midland, TX 79705 | Oil & Gas Operator | Aug 1998 |
| 5 | Equitable Petroleum Corp. | Oil & Gas Operator | Jan 1999 |