| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Patrick Petroleum Corp Of Michigan | Oil & Gas Operator | Nov 1993 | |
| 2 | Paxton Resources LLC | Oil & Gas Operator | Aug 2025 | |
| 3 | Peninsular Oil & Gas Co | Ada, MI 49301 | Oil & Gas Operator | Dec 2001 |
| 4 | Petco Petroleum Corp | Hinsdale, IL 60521 | Oil & Gas Operator | Jun 2025 |
| 5 | Preston Oil Co | Woodlands, TX 77380 | Oil & Gas Operator | Dec 2009 |
| 6 | Pride Energy Company | Tulsa, OK 74170 | Oil & Gas Operator | Oct 2025 |
| 7 | Pure Oil Co | Oil & Gas Operator | Dec 1996 |