Oil & Gas Companies in Atascosa County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | Occidental Energy Company, Inc. | Houston, TX 77282 | Oil & Gas Operator | Jul 2021 |
| 2 | Oilex Int'L Investments, Inc. | Luling, TX 78648 | Oil & Gas Operator | Oct 2025 |
| 3 | Old Chief Oil, LLC | New Braunfels, TX 78132 | Oil Operator | Oct 2025 |
| 4 | Omimex Petroleum Inc | Fort Worth, TX 76120 | Oil & Gas Operator | Aug 2022 |
| 5 | Origin Production Company, Inc. | New Braunfels, TX 78132 | Oil & Gas Operator | Oct 2025 |
| 6 | Oro Resources, LLC | Houston, TX 77024 | Oil & Gas Operator | Oct 2025 |
| 7 | Osr Oil & Gas Company | Victoria, TX 77902 | Oil & Gas Operator | Jul 2000 |
| 8 | Osyka Oil & Gas, Inc. | Metairie, LA 70004 | Oil & Gas Operator | Oct 2025 |
| 9 | Outline Oil Corp. | San Antonio, TX 78217 | Oil & Gas Operator | Oct 2025 |
| 10 | Overly Operating Co. | San Antonio, TX 78209 | Oil & Gas Operator | Jul 2013 |
| 11 | Overstreet, Jamie L | Hondo, TX 78861 | Oil & Gas Operator | Oct 2025 |
| 12 | Ovintiv USA Inc. | Denver, CO 80202 | Oil & Gas Operator | Oct 2025 |
| 13 | Oxy USA Inc | Houston, TX 77046 | Oil & Gas Operator | Oct 2025 |
Production numbers shown above are only for Atascosa County, TX and for the production period listed.