| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Adams Resources Expl. Corp. | Houston, TX 77001 | Oil & Gas Operator | Apr 2020 |
| 2 | Aguila Operating Company LLC | Edmond, OK 73034 | Oil & Gas Operator | Dec 2025 |
| 3 | Antara Resources, Inc. | Houston, TX 77002 | Oil & Gas Operator | Apr 2004 |
| 4 | Apache Corporation | Houston, TX 77042 | Oil & Gas Operator | Mar 2026 |
| 5 | Arrow Energy, Incorporated | Houston, TX 77008 | Oil & Gas Operator | Jan 2026 |
| 6 | Arrow Operating Company | Dallas, TX 75231 | Oil & Gas Operator | Jan 2026 |
| 7 | Atlantic Richfield Company | Houston, TX 77079 | Oil & Gas Operator | Dec 2016 |