Oil & Gas Companies in Brown County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | Earthbound Resources LLC | Merkel, TX 79536 | Oil & Gas Operator | Oct 2025 |
| 2 | East Texas Production MGT. Inc | Athens, TX 75751 | Oil & Gas Operator | Oct 2025 |
| 3 | Eastco Gas Co. | Midland, TX 79707 | Oil & Gas Operator | Oct 1999 |
| 4 | Eastland Exploration, Inc. | Austin, TX 78763 | Oil & Gas Operator | Apr 1997 |
| 5 | Eddie'S Royalties, Inc. | Rising Star, TX 76471 | Oil & Gas Operator | Oct 2025 |
| 6 | Energy Transfer Crude Marketing LLC | Dallas, TX 75225 | Oil Operator | May 2025 |
| 7 | Energyquest II, LLC | The Woodlands, TX 77381 | Oil & Gas Operator | Jun 2025 |
| 8 | Enre Corp. | San Antonio, TX 78209 | Oil & Gas Operator | Mar 2005 |
| 9 | Enserch Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | Apr 2015 |
| 10 | EP Operating Limited Partnership | Dallas, TX 75201 | Oil & Gas Operator | Feb 1995 |
| 11 | Esoterra, Inc. | Granbury, TX 76049 | Oil & Gas Operator | Oct 2025 |
| 12 | Eubank, Robert B. & B. K. | Spring, TX 77388 | Oil & Gas Operator | Mar 2008 |
| 13 | European-Southwest Co. | Houston, TX 77254 | Oil & Gas Operator | Oct 2025 |
| 14 | Excel Energy, Inc. | Cisco, TX 76437 | Oil & Gas Operator | Oct 2025 |
| 15 | Exco Resources Inc | Dallas, TX 75251 | Oil & Gas Operator | Jun 2025 |
| 16 | Expanding Energy Corporation | New Braunfels, TX 78132 | Oil & Gas Operator | Mar 2008 |
| 17 | Explo Oil, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Oct 2025 |
Production numbers shown above are only for Brown County, TX and for the production period listed.