| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Gen-Dor Oil Co. | Oil & Gas Operator | Nov 2009 | |
| 2 | Gen-Dor Oil Comp | Oil & Gas Operator | Nov 1994 | |
| 3 | Geo-Sax Petroleum | Oil & Gas Operator | Dec 2023 | |
| 4 | Geoson Oil Compa | Oil Operator | Jun 1984 | |
| 5 | Gerber Energy Co | Oil Operator | Apr 1995 | |
| 6 | Glaves Oil Company | Douglass, KS 67039 | Oil Operator | Mar 2019 |
| 7 | Gore Oil Company | Wichita, KS 67202 | Oil & Gas Operator | Dec 2023 |
| 8 | Gowdy Chemical Co. | Oil Operator | Oct 2001 | |
| 9 | Green Enterprises | Oil Operator | Dec 2023 | |
| 10 | Greer Oil Compan | Oil & Gas Operator | Jun 1988 | |
| 11 | Greer Tom & Welm | Oil Operator | Mar 1995 | |
| 12 | Greer, Tom | Ponca City, OK 74602 | Oil Operator | Aug 2016 |
| 13 | Groves, Frank | Arkansas City, KS 67005 | Oil & Gas Operator | Mar 1995 |