| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Z & S Construction Co Inc | Kimball, NE 69145 | Oil & Gas Operator | Feb 2026 |
| 2 | Zavanna Resources LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2026 |
| 3 | Zenergy Inc | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2026 |
| 4 | Zerbst James E | Oil & Gas Operator | Apr 2007 |