| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Pacific Gas And Electric Company | Gas Operator | Jul 2025 | |
| 2 | Pacific Petroleum Technology LLC | Oil & Gas Operator | Dec 2018 | |
| 3 | Pancanadian Petroleum Company | Oil & Gas Operator | Dec 1988 | |
| 4 | Paul Graham Drilling & Service Co. | Oil & Gas Operator | Dec 2011 | |
| 5 | Petersen Production Company LLC | Oil & Gas Operator | Dec 2019 | |
| 6 | Petrogulf Corporation | Denver, CO 80202 | Oil & Gas Operator | Oct 2025 |
| 7 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 8 | Production Specialties Company | Oil & Gas Operator | Dec 2003 |