| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | George H Fentress | Wheatridge, CO 80034 | Gas Operator | Jun 1999 |
| 2 | Giant Exploration & Prod Co | Farmington, NM 87499 | Oil & Gas Operator | Dec 2009 |
| 3 | Golden Oil Holding Corporation | Houston, TX 77057 | Oil & Gas Operator | Mar 2022 |
| 4 | Graham Royalty LTD | Covington, LA 70434 | Oil & Gas Operator | Jul 2007 |
| 5 | Great Western Drilling Co | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 6 | Great Western Onshore Inc | Houston, TX 77002 | Oil & Gas Operator | Mar 2008 |