| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Abercrombie Energy, LLC | Wichita, KS 67212 | Oil & Gas Operator | Feb 2026 |
| 2 | Advantage Resour | Oil & Gas Operator | May 1994 | |
| 3 | Advantage Resources Inc | Broomfield, CO 80020 | Oil & Gas Operator | Feb 2026 |
| 4 | Altman Energy, Inc. | Tulsa, OK 74114 | Oil & Gas Operator | Jun 2026 |
| 5 | American Warrior | Oil & Gas Operator | Feb 2026 | |
| 6 | Amoco Production | Oil & Gas Operator | Jun 2012 | |
| 7 | Anadarko Petrole | Oil & Gas Operator | Dec 1996 | |
| 8 | Anadarko Petroleum Corporation | Houston, TX 77251 | Oil & Gas Operator | Mar 2026 |
| 9 | Apollo Energies Inc | Pratt, KS 67124 | Oil & Gas Operator | Feb 2026 |
| 10 | Aylward Drilling | Oil & Gas Operator | Dec 1986 |