| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Zachary Oil Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2023 |
| 2 | Zachry Oil And Gas Properties | Midland, TX 79708 | Oil & Gas Operator | Oct 2025 |
| 3 | Zagava, LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Oct 2025 |
| 4 | Zarvona Energy LLC | Houston, TX 77002 | Oil & Gas Operator | Oct 2025 |
| 5 | Zenergy Inc | Tulsa, OK 74136 | Oil & Gas Operator | Jul 2025 |
| 6 | Zinke & Trumbo, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2007 |