Oil & Gas Companies in Graham County, KS
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | T & C MFG. & Operating, Inc. | Great Bend, KS 67530 | Oil Operator | May 2022 |
| 2 | Te-Pe Oil & Gas | | Oil & Gas Operator | Jun 2025 |
| 3 | Tema Oil And Gas, LLC | Houston, TX 77040 | Oil & Gas Operator | Apr 2000 |
| 4 | Tengasco, Inc. | Houston, TX 77063 | Oil & Gas Operator | Jun 2025 |
| 5 | Terrol Energy Incorporated | Hygiene, CO 80533 | Oil & Gas Operator | Dec 2006 |
| 6 | Texaco Explorati | | Oil & Gas Operator | Dec 1996 |
| 7 | Texkan Exploration LLC | Plainville, KS 67663 | Oil Operator | Dec 2019 |
| 8 | Texkan Resources, LLC | Odessa, TX 79765 | Oil & Gas Operator | Jun 2025 |
| 9 | TGT Petroleum Co | | Oil & Gas Operator | Apr 1995 |
| 10 | Thomason Petroleum, Inc | Hays, KS 67601 | Oil Operator | Jun 2025 |
| 11 | Thunder Oil & Gas, LLC | Ardmore, OK 73402 | Oil & Gas Operator | Sep 2025 |
| 12 | TMM Investments LTD. | Tyler, TX 75703 | Oil Operator | Dec 2024 |
| 13 | Tom'S Oil | | Oil Operator | Jun 2025 |
| 14 | Tomlinson Oil Co Inc | Great Bend, KS 67530 | Oil & Gas Operator | May 2025 |
| 15 | Trans Pacific Oil Corporation | Wichita, KS 67202 | Oil & Gas Operator | Sep 2025 |
| 16 | Trek Aec, LLC | Wichita, KS 67202 | Oil & Gas Operator | Jun 2025 |
| 17 | Tri United, Inc | Hays, KS 67601 | Oil Operator | Jun 2025 |
Production numbers shown above are only for Graham County, KS and for the production period listed.