| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | P & M Petroleum Management LLC | Denver, CO 80202 | Oil & Gas Operator | Oct 2021 |
| 2 | Pacific Enterprises Oil Co USA | Dallas, TX 75201 | Oil & Gas Operator | Feb 2001 |
| 3 | Pacific Transmission Supply | Oil & Gas Operator | Dec 1987 | |
| 4 | PDS Resources LLC | Oil & Gas Operator | Oct 2025 | |
| 5 | Pedco Resources Company | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2008 |
| 6 | Petcon Associates LTD | Denver, CO 80202 | Oil & Gas Operator | Sep 2018 |
| 7 | Petro Search Exploration Corp | Oil & Gas Operator | May 1993 | |
| 8 | Petro-Lewis Corp. | Oil & Gas Operator | Feb 1994 | |
| 9 | Petrogulf Corporation | Denver, CO 80202 | Oil & Gas Operator | Dec 2025 |
| 10 | Petroleum Corp Of Delaware The | Oil & Gas Operator | May 1991 | |
| 11 | Petroleum Resource Management Corp | Denver, CO 80203 | Oil & Gas Operator | Oct 2025 |
| 12 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 13 | Plains Petroleum Operating Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2014 |
| 14 | Polfam Exploration Co | Denver, CO 80204 | Oil & Gas Operator | Mar 2007 |