| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Aa Production Services Inc. | Gas Operator | Jul 2025 | |
| 2 | Anacapa Oil Corporation | Gas Operator | Jul 2025 | |
| 3 | Arkoma Production Company Of California | Oil & Gas Operator | Dec 1993 | |
| 4 | Aspen Exploration Corporation | Oil & Gas Operator | Dec 2007 | |
| 5 | Atlantic Oil Company | Oil & Gas Operator | Jul 2025 |