Oil & Gas Companies in Chautauqua County, KS
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | Tanner, M.B. | Moline, KS 67353 | Oil Operator | Apr 1986 |
| 2 | Tdot Oil, Inc. | Sedan, KS 67361 | Oil Operator | Jun 2025 |
| 3 | Teichgraeber Oil, Inc. | Eureka, KS 67045 | Oil & Gas Operator | Dec 2024 |
| 4 | Thomas Garner, Inc. | St John, KS 67576 | Oil & Gas Operator | Jun 2025 |
| 5 | Thorne Harold & | | Oil Operator | May 1994 |
| 6 | Tomkat Limited | | Oil & Gas Operator | Jul 1995 |
| 7 | Triple G Oilfiel | | Oil & Gas Operator | Dec 1985 |
| 8 | Tyco, Inc. (Colorado Corporation) | Independence, KS 67301 | Gas Operator | Jun 1998 |
| 9 | Tyrok | | Oil & Gas Operator | Nov 2010 |
Production numbers shown above are only for Chautauqua County, KS and for the production period listed.