| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Grand Resources, LTD. | Rockville, MD 20852 | Oil Operator | Jun 2025 |
| 2 | Great Plains Operating, LLC. | Grapevine, TX 76051 | Oil & Gas Operator | Aug 2014 |
| 3 | Great Plains Resources, Inc. | Nixon, TX 78140 | Oil & Gas Operator | Oct 2025 |