| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | R & R Oil Compan | Oil & Gas Operator | Jan 1987 | |
| 2 | Randon Production Co. | Marion, KS 66861 | Oil & Gas Operator | Jul 2025 |
| 3 | Range Oil Co., Inc. | Wichita, KS 67278 | Oil & Gas Operator | Jan 2020 |
| 4 | Range Oil Compan | Oil & Gas Operator | Nov 1995 | |
| 5 | Reed, George A. | Wichita, KS 67202 | Oil & Gas Operator | Dec 2009 |
| 6 | Renegade Resources Corp. | Reno, NV 89511 | Oil & Gas Operator | Jul 2024 |