Oil & Gas Companies in Ellis County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | Tep Barnett USA, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 2025 |
| 2 | Titan Operating, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2012 |
| 3 | Trans-Texas Energy Group LLC | Mineral Wells, TX 76068 | Oil & Gas Operator | Jul 2015 |
| 4 | Trinity River Energy Oper, LLC | Houston, TX 77008 | Oil & Gas Operator | May 2018 |
| 5 | Triton Energy LLC | Wortham, TX 76693 | Oil & Gas Operator | Oct 2025 |
| 6 | Trust Oil Co. | Pine, CO 80470 | Oil & Gas Operator | Oct 2025 |
| 7 | Txu Lone Star Pipeline | Dallas, TX 75201 | Oil & Gas Operator | Oct 2003 |
Production numbers shown above are only for Ellis County, TX and for the production period listed.