| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | P & M Oil Company | Hays, KS 67601 | Oil & Gas Operator | Jul 2025 |
| 2 | Pacific Alliance Medical Center | Oil Operator | Dec 2007 | |
| 3 | Pacific Coast Energy Company LP | Oil & Gas Operator | Aug 2025 | |
| 4 | Pacific Energy Resources LTD | Oil & Gas Operator | Sep 2009 | |
| 5 | Pacific Palms Petroleum LLC | Oil & Gas Operator | Jul 2025 | |
| 6 | Pan Western Petroleum Co. | Oil & Gas Operator | Dec 1993 | |
| 7 | Pancanadian Petroleum Company | Oil & Gas Operator | Dec 1988 | |
| 8 | Penn Inc. | Oil & Gas Operator | Dec 2004 | |
| 9 | Petro Resources, Inc. | Fulton, TX 78358 | Oil & Gas Operator | Oct 2025 |
| 10 | Petro-Lewis Corp. | Oil & Gas Operator | Feb 1994 | |
| 11 | Petrominerals Corp. | Oil & Gas Operator | Dec 2003 | |
| 12 | Philip H. McAlmond | Oil Operator | Dec 2002 | |
| 13 | Phillip & Phyllis Pace-Trustee | Oil & Gas Operator | Dec 2007 | |
| 14 | Porter Sesnon Et Al | Oil & Gas Operator | Dec 1978 | |
| 15 | Power Run Oil LLC | Oil & Gas Operator | Jul 2025 | |
| 16 | PS126 Investments LLC | Oil & Gas Operator | Jul 2025 | |
| 17 | Pyramid Oil Co. | Litchfield PK, AZ 85340 | Oil & Gas Operator | Jan 2018 |