Oil & Gas Companies in Neosho County, KS
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | R-Jann-N Oil | | Oil Operator | Dec 1999 |
| 2 | R. B. Oil Company | Monahans, TX 79756 | Oil & Gas Operator | Nov 1996 |
| 3 | Rama Operating C | | Oil & Gas Operator | Dec 1996 |
| 4 | Ramrod Oil Co., A General Partnership | Iola, KS 66749 | Oil Operator | Nov 2001 |
| 5 | RCS Oil | | Oil Operator | Jun 2025 |
| 6 | Redbud Oil & Gas Operating, LLC | Spring, TX 77379 | Oil & Gas Operator | Jun 2025 |
| 7 | RH Capital-Beets, LLC | Jefferson City, MO 65101 | Oil Operator | Jun 2025 |
| 8 | Rhodes Well Service | | Oil Operator | Jun 2025 |
| 9 | Richard Engineer | | Oil Operator | Mar 1991 |
| 10 | Richard Oil Comp | | Oil Operator | Mar 1992 |
| 11 | River Rock Operating LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Jun 2025 |
| 12 | RJ Energy, LLC | Garnett, KS 66032 | Oil Operator | Jun 2025 |
| 13 | RMR Drilling Com | | Oil Operator | Sep 1988 |
| 14 | Russell James E | | Oil Operator | Apr 1994 |
Production numbers shown above are only for Neosho County, KS and for the production period listed.