| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Energy Development Corporation | Houston, TX 77067 | Oil & Gas Operator | Dec 2025 |
| 2 | Engelke, R. H. | San Antonio, TX 78230 | Oil & Gas Operator | Mar 2026 |
| 3 | Esenjay Petroleum Corp. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Jul 1998 |
| 4 | Exxon Corporation | Houston, TX 77210 | Oil & Gas Operator | Mar 2026 |