Oil & Gas Companies in Brown County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | A & T Oil Company | Midland, TX 79707 | Oil & Gas Operator | Sep 2008 |
| 2 | Abel Production Company | San Angelo, TX 76904 | Oil & Gas Operator | Sep 2000 |
| 3 | Adair Resources Inc. | Ennis, TX 75120 | Oil & Gas Operator | Apr 2018 |
| 4 | Aegis Fluids Management, LLC | Plano, TX 75093 | Oil & Gas Operator | Oct 2025 |
| 5 | Agroil, Inc. | Brownwood, TX 76801 | Oil & Gas Operator | Oct 2025 |
| 6 | Alpine Gas Company, LLC | Dallas, TX 75201 | Oil & Gas Operator | Oct 2006 |
| 7 | Alps Oil Company | Odessa, TX 79760 | Oil & Gas Operator | Aug 1999 |
| 8 | Ames Oil | Cross Plains, TX 76443 | Oil & Gas Operator | Oct 2025 |
| 9 | Anadarko E&P Onshore LLC | Houston, TX 77046 | Oil & Gas Operator | Oct 2025 |
| 10 | Anderson Production | Cisco, TX 76437 | Oil & Gas Operator | Oct 2025 |
| 11 | Anderson, E D | Cisco, TX 76437 | Oil & Gas Operator | Nov 2009 |
| 12 | Anejo Production, LLC | Electra, TX 76360 | Oil & Gas Operator | Oct 2025 |
| 13 | Arabie, Inc. | Lake Charles, LA 70605 | Oil & Gas Operator | Apr 2025 |
| 14 | Arben Oil, Inc. | Coleman, TX 76834 | Oil & Gas Operator | Oct 2025 |
| 15 | Arcadian Mineral Development | Brownwood, TX 76801 | Oil & Gas Operator | Dec 2013 |
| 16 | Arcadian Mineral Development,LLC | Brownwood, TX 76801 | Oil & Gas Operator | Oct 2025 |
| 17 | Argus Drilling, LLC | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 18 | Arnot Oil Company, LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Oct 2025 |
| 19 | Arnot, W. G., Jr. | Breckenridge, TX 76424 | Oil & Gas Operator | Jan 2017 |
| 20 | Arrowood Production Inc | Cross Plains, TX 76443 | Oil & Gas Operator | Mar 2008 |
| 21 | Ashbrook Oil Co. | Big Spring, TX 79721 | Oil & Gas Operator | Apr 2020 |
| 22 | Aztec Drilling & Operating, LLC | Houston, TX 77056 | Oil & Gas Operator | Sep 2015 |
Production numbers shown above are only for Brown County, TX and for the production period listed.