| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | General Atlantic Resources Inc | Denver, CO 80202 | Oil & Gas Operator | Jan 2022 |
| 2 | Giant Exploratio | Oil & Gas Operator | Aug 1992 | |
| 3 | Giant Exploration & Prod Co | Farmington, NM 87499 | Oil & Gas Operator | Dec 2009 |
| 4 | Graham-Michaelis | Oil & Gas Operator | Nov 1996 | |
| 5 | Graham-Michaelis Corporation | Wichita, KS 67201 | Oil & Gas Operator | Dec 2010 |
| 6 | Great Plains Pet | Oil & Gas Operator | Mar 1995 | |
| 7 | Great Plains Petroleum, Inc. | Snyder, TX 79549 | Oil & Gas Operator | Dec 2023 |
| 8 | Greer, Joseph V. | Yates Center, KS 66783 | Oil & Gas Operator | Oct 2005 |
| 9 | Gruenerwald WM & | Oil & Gas Operator | Apr 1994 |