| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Z G Exploration Inc | Oklahoma City, OK 73112 | Oil & Gas Operator | Feb 2005 |
| 2 | Zeiders Bros. Oil & Gas Company, L.L.C. | Edmond, OK 73003 | Oil & Gas Operator | Aug 2025 |
| 3 | Zenith Oil & Gas, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Aug 2025 |
| 4 | Zinke & Trumbo LTD | Tulsa, OK 74105 | Oil & Gas Operator | Sep 2017 |
| 5 | ZZ Energy LLC | Norman, OK 73070 | Gas Operator | Sep 2025 |