| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 901 | Young Tommy Oil Inc | Woodward, OK 73802-0893 | Oil & Gas Operator | Sep 2024 |
| 902 | Z G Operating LLC | Oklahoma City, OK 73134-5038 | Oil & Gas Operator | Nov 2009 |
| 903 | Z G Exploration Inc | Oklahoma City, OK 73112 | Oil & Gas Operator | Feb 2005 |
| 904 | Zeiders Bros Oil & Gas Co LLC | Edmond, OK 73003 | Oil & Gas Operator | Sep 2024 |
| 905 | Zephyr Operating Co LLC | Oklahoma City, OK 73118-6035 | Oil & Gas Operator | Sep 2024 |
| 906 | Zilkha Energy Company | Houston, TX 77046 | Oil & Gas Operator | Oct 2002 |
| 907 | ZP Disposal Systems LLC | Kingfisher, OK 73750 | Oil Operator | Oct 2024 |