Oil & Gas Companies in Duval County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | Ocean Energy, Inc. | Houston, TX 77002 | Oil & Gas Operator | Aug 2003 |
| 2 | Oil Management Corporation | Dallas, TX 75206 | Oil & Gas Operator | Apr 2022 |
| 3 | Oilton Resources, Inc. | Laredo, TX 78041 | Oil & Gas Operator | Oct 2025 |
| 4 | Olsen Energy Inc. | Boerne, TX 78006 | Oil & Gas Operator | Oct 2025 |
| 5 | Origin Production Company, Inc. | New Braunfels, TX 78132 | Oil & Gas Operator | Oct 2025 |
| 6 | Origin Production Group LLC | Luling, TX 78648 | Oil Operator | Oct 2025 |
| 7 | Orion Oil & Gas, LLC | Houston, TX 77042 | Oil & Gas Operator | Oct 2007 |
| 8 | Orx Resources, L.L.C. | Houston, TX 77067 | Oil & Gas Operator | Oct 2025 |
| 9 | Oso Exploration Co. | San Antonio, TX 78217 | Oil & Gas Operator | Jul 2011 |
| 10 | Osr Oil & Gas Company | Victoria, TX 77902 | Oil & Gas Operator | Jul 2000 |
| 11 | Osyka Oil & Gas, Inc. | Metairie, LA 70004 | Oil & Gas Operator | Oct 2025 |
| 12 | Ozzo Corporation, The | Bedford, TX 76021 | Oil Operator | Oct 2025 |
Production numbers shown above are only for Duval County, TX and for the production period listed.