| 1 | Page Development, L.L.C. | | Oil Operator | Dec 2024 |
| 2 | Palmetto Oil Co., Inc. | | Oil & Gas Operator | Jan 2025 |
| 3 | Par Minerals Corporation | Shreveport, LA 71101 | Oil & Gas Operator | Feb 2026 |
| 4 | Par Oil Corporation | | Oil & Gas Operator | Sep 1990 |
| 5 | Pentagon Exploration | | Oil & Gas Operator | Dec 1991 |
| 6 | Pentagon Petroleum, Inc. | | Oil & Gas Operator | Sep 1991 |
| 7 | Petro-Hunt, L.L.C. | Dallas, TX 75201 | Oil & Gas Operator | Feb 2026 |
| 8 | Phillips Oil Company | Casper, WY 82602 | Oil & Gas Operator | Sep 1986 |
| 9 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 10 | Phoenix - Comco, Inc. | | Oil Operator | Aug 2004 |
| 11 | Phoenix Operating Company, Inc. | Shreveport, LA 71161 | Oil & Gas Operator | Mar 2015 |
| 12 | Phoenix Opr Co Inc-DS DRLG | | Oil Operator | May 1994 |
| 13 | Phoenix Opr Co Inc-La Petro As | | Oil Operator | Dec 1992 |
| 14 | Phoenix Opr Co Inc-Lex 83 | | Oil Operator | Feb 1993 |
| 15 | Phoenix Opr Co Inc-New Amer 85 | | Oil Operator | Dec 1992 |
| 16 | Phoenix Opr Co Inc-Shemen | | Oil Operator | Dec 1992 |
| 17 | Phoenix Opr Co Inc-York | | Oil Operator | Dec 1992 |
| 18 | Placid Oil Co., Et Al | | Oil & Gas Operator | Jun 1983 |
| 19 | Placid Oil Company | Houston, TX 77227 | Oil & Gas Operator | Mar 2008 |
| 20 | Pryme Energy, LLC | | Oil & Gas Operator | Feb 2015 |
| 21 | Pyramid Petroleum, Inc.-La Div | | Oil Operator | Jun 1997 |