| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Paragon Oil Co | Oil & Gas Operator | Oct 1991 | |
| 2 | Paxton Resources LLC | Oil & Gas Operator | Aug 2025 | |
| 3 | Petco Petroleum Corp | Hinsdale, IL 60521 | Oil & Gas Operator | Jun 2025 |
| 4 | Pure Oil Co | Oil & Gas Operator | Dec 1996 |