| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | W. R. Williams, Inc. | Amarillo, TX 79105 | Gas Operator | Dec 2019 |
| 2 | Western Operating Company | Denver, CO 80204 | Oil & Gas Operator | Jul 2025 |
| 3 | Westport Oil And Gas Company Inc | Denver, CO 80202 | Oil & Gas Operator | Feb 2002 |
| 4 | Whitehall Energy Corp. | Houston, TX 77095 | Gas Operator | Apr 2010 |
| 5 | Williams, W. R. | Amarillo, TX 79105 | Oil & Gas Operator | Jun 2013 |