| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Zachary Oil Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2023 |
| 2 | Zia Energy Inc | The Woodlands, TX 77380 | Oil & Gas Operator | May 2005 |
| 3 | Zia Minerals LTD Co | Andrews, TX 79714 | Oil & Gas Operator | Sep 1996 |
| 4 | Zimmerman Oil & Gas Exploration, Inc. | Houston, TX 77002 | Oil & Gas Operator | Apr 2025 |