| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Abercrombie A L | Oil & Gas Operator | Nov 1995 | |
| 2 | Agv Corp. | Attica, KS 67009 | Oil & Gas Operator | Mar 2026 |
| 3 | Alpine Drilling | Oil & Gas Operator | May 1994 | |
| 4 | American Energie | Oil & Gas Operator | May 1995 | |
| 5 | American Trading | Oil & Gas Operator | Dec 1995 | |
| 6 | American Warrior | Oil & Gas Operator | Mar 2026 | |
| 7 | American Warrior Inc | Garden City, KS 67846 | Oil & Gas Operator | Apr 2026 |
| 8 | Anadarko Petrole | Oil & Gas Operator | Dec 1996 | |
| 9 | Anadarko Petroleum Corporation | Houston, TX 77251 | Oil & Gas Operator | May 2026 |
| 10 | Apollo Energies Inc | Pratt, KS 67124 | Oil & Gas Operator | Mar 2026 |
| 11 | Arrow Production Company | Tulsa, OK 74108 | Oil & Gas Operator | Dec 2009 |
| 12 | Arrowhead Petrol | Oil & Gas Operator | Feb 1992 | |
| 13 | Ash, Wiley R., Jr. | Andover, KS 67002 | Oil & Gas Operator | Mar 1990 |
| 14 | Atlas Operating LLC | Houston, TX 77056 | Oil & Gas Operator | Jul 2026 |
| 15 | Attica Gas Ventu | Oil & Gas Operator | Dec 1995 |