| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Yasny Corporation | Oil Operator | Nov 1991 | |
| 2 | Yates Oil Company | Oil Operator | Jul 1990 | |
| 3 | Yellow Dog Oil Company | Oil Operator | Apr 1988 | |
| 4 | Yellow Rock, LLC | Oil & Gas Operator | Dec 2024 | |
| 5 | Yentzen Investments, Inc. | Sugar Land, TX 77478 | Oil Operator | May 1993 |
| 6 | Yentzen Production, Inc. | Oil Operator | Mar 1987 | |
| 7 | Youngblood Enterprises | Gas Operator | Dec 1983 | |
| 8 | Youngblood Enterprises, Inc. | Oil & Gas Operator | Jan 1992 | |
| 9 | Yuma E & P Company, Inc. | Houston, TX 77027 | Oil & Gas Operator | Dec 2025 |
| 10 | Yuma Petroleum Company | Houston, TX 77027 | Oil & Gas Operator | Aug 2002 |