Oil & Gas Companies in Clay County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | O'Donohoe, Jack | Wichita Falls, TX 76301 | Oil & Gas Operator | May 2002 |
| 2 | O'Neal Oil Company | Nocona, TX 76255 | Oil & Gas Operator | Dec 2025 |
| 3 | O'Neal, Lindell | Nocona, TX 76255 | Oil & Gas Operator | Sep 2025 |
| 4 | Oakridge Energy, Inc. | Wichita Falls, TX 76302 | Oil & Gas Operator | Dec 2025 |
| 5 | Oakridge Oil And Gas, LP | Jacksboro, TX 76458 | Oil & Gas Operator | Dec 2025 |
| 6 | Oriole Operating LLC | Wichita Falls, TX 76308 | Oil Operator | Dec 2025 |
Production numbers shown above are only for Clay County, TX and for the production period listed.