| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Rama Operating Company Inc | Stafford, KS 67578 | Oil & Gas Operator | Oct 2025 |
| 2 | Reach Petroleum | Oil & Gas Operator | Jan 1994 | |
| 3 | Red Bear Drillin | Oil & Gas Operator | Sep 1992 | |
| 4 | Richardson J Mar | Oil & Gas Operator | Apr 1995 | |
| 5 | Riley Resources, Inc . | Oklahoma City, OK 73162 | Gas Operator | Jun 2025 |
| 6 | Ritchie Exploration, Inc. | Wichita, KS 67278 | Oil & Gas Operator | Jun 2025 |
| 7 | Robert-Gay Energ | Oil & Gas Operator | Jun 1992 | |
| 8 | Robert-Gay Energy Enterprises | Hutchinson, KS 67501 | Oil Operator | Nov 1999 |
| 9 | Royal Drilling Inc | Russell, KS 67665 | Oil Operator | Jun 2025 |
| 10 | Rupe Oil Company Inc | Wichita, KS 67278 | Oil & Gas Operator | Jun 2025 |