| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | R.H.S. Oil Company | Oil Operator | Nov 2009 | |
| 2 | Rains & Williams | Oil & Gas Operator | Nov 1995 | |
| 3 | Rains & Williamson Oil Co Inc | Wichita, KS 67277 | Oil & Gas Operator | Feb 2026 |
| 4 | Royal Drilling Inc | Russell, KS 67665 | Oil Operator | Feb 2026 |
| 5 | Russell Oil, Inc. | Edmond, OK 73083 | Oil Operator | Feb 2026 |