| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | A & A Discovery, LLC | Hill City, KS 67642 | Oil Operator | May 2018 |
| 2 | Abercrombie A L | Oil & Gas Operator | Nov 1995 | |
| 3 | Abercrombie Dril | Oil Operator | Jan 1990 | |
| 4 | Abercrombie Energy, LLC | Wichita, KS 67212 | Oil & Gas Operator | Jun 2025 |
| 5 | Abraxas Petroleu | Oil Operator | May 1986 | |
| 6 | American Energie | Oil & Gas Operator | May 1995 | |
| 7 | American Warrior Inc | Garden City, KS 67846 | Oil & Gas Operator | Aug 2025 |
| 8 | Anderson Energy Inc | Wichita, KS 67278 | Oil & Gas Operator | Apr 2025 |
| 9 | Anderson Thornto | Oil & Gas Operator | Mar 1995 | |
| 10 | Arcadian Resources LLC | Glen Elder, KS 67446 | Oil & Gas Operator | Dec 2025 |
| 11 | Arp Operating, LLC | Denver, CO 80202 | Oil Operator | Jun 2025 |