| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | U. S. Energy Development Corporation | Fort Worth, TX 76164 | Oil & Gas Operator | Jul 2026 |
| 2 | Ulrich, William J., Jr. & Connie K. | Elma, NY 14059 | Gas Operator | Dec 2025 |
| 3 | United States Gypsum Company | Oakfield, NY 14125 | Oil & Gas Operator | Dec 2025 |
| 4 | Unknown | Houston, TX 77208 | Oil & Gas Operator | Dec 2024 |