| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | 3 B Energy, Inc. | Neodesha, KS 66757 | Oil & Gas Operator | Dec 2012 |
| 2 | 3 G Oil Co. | Oil Operator | Feb 2026 | |
| 3 | 3-D Oil Company, A General Partnership | Dewey, OK 74029 | Oil Operator | Nov 2017 |
| 4 | 3-T Oil | Oil Operator | Dec 1996 | |
| 5 | 325 Energy Operations, LLC | Oil Operator | Feb 2026 | |
| 6 | 327TH Farm, LLC | Oil Operator | Jan 2026 | |
| 7 | 3G Production, LLC | Pratt, KS 67124 | Oil & Gas Operator | Feb 2026 |
| 8 | 3tec Energy Corporation | Houston, TX 77002 | Oil & Gas Operator | Dec 2019 |