| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 701 | Yale Oil Association, Inc. | Oklahoma City, OK 73105 | Oil & Gas Operator | Feb 2026 |
| 702 | Yarhola Production Company | Drumright, OK 74030 | Oil & Gas Operator | Feb 2026 |
| 703 | Young Z Joe | Cement, OK 73017-0600 | Oil & Gas Operator | Mar 2015 |
| 704 | Young Zoral J | Cement, OK 73017 | Oil & Gas Operator | Sep 2000 |
| 705 | Z G Exploration Inc | Oklahoma City, OK 73112 | Oil & Gas Operator | Feb 2005 |
| 706 | Zarvona Energy LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2026 |
| 707 | Zephyr Operating Co LLC | Oklahoma City, OK 73118-6035 | Oil & Gas Operator | Feb 2026 |
| 708 | Zilkha Energy Company | Houston, TX 77046 | Oil & Gas Operator | Oct 2002 |