| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Unicorn Oil & Gas Co Inc | Dorset, OH 44032 | Oil & Gas Operator | Dec 1993 |
| 2 | Union Oil Co | Danville, OH 43014 | Oil & Gas Operator | Dec 2014 |
| 3 | United O&G/Atlee Miller | Millersburg, OH 44654 | Oil & Gas Operator | Dec 1985 |
| 4 | Unity Petroleum | Howard, OH 43028 | Oil & Gas Operator | Dec 2021 |
| 5 | Universal Exploration Inc | Wadsworth, OH 44281-9460-9460 | Oil & Gas Operator | Feb 2012 |
| 6 | Unknown Owner | Columbus, OH 43229 | Oil & Gas Operator | Dec 2008 |
| 7 | Us Energy Oh LLC | Rural Valley, PA 16249 | Oil & Gas Operator | Dec 2022 |
| 8 | Us Oil & Gas Inc | Marietta, OH 45750 | Oil & Gas Operator | Feb 2024 |
| 9 | Utica Resource Operating LLC | Marietta, OH 45750 | Oil & Gas Operator | Sep 2023 |