| 1 | Panaco, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Jun 2025 |
| 2 | Parrish Corporation | Wichita, KS 67202 | Oil & Gas Operator | Jan 2025 |
| 3 | Patton Oil Compa | | Oil & Gas Operator | Nov 1994 |
| 4 | Petroleum Inc | Wichita, KS 67202 | Oil & Gas Operator | Oct 2021 |
| 5 | Petroleum Incorp | | Oil & Gas Operator | Apr 1993 |
| 6 | Petroleum Manage | | Oil & Gas Operator | Oct 1994 |
| 7 | Petroleum Produc | | Oil & Gas Operator | Dec 1996 |
| 8 | Petroleum Production Management, Inc. | Shawnee Mission, KS 66202 | Oil & Gas Operator | Nov 2021 |
| 9 | Petroleum Proper | | Oil & Gas Operator | Nov 1995 |
| 10 | Petroleum Property Services, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Jun 2025 |
| 11 | Phillips Explora | | Oil & Gas Operator | Dec 1996 |
| 12 | Phillips Exploration Company L.C. | Andover, KS 67002 | Oil & Gas Operator | Jun 2025 |
| 13 | Phillips Lee Oil | | Oil & Gas Operator | Aug 1995 |
| 14 | Phillips Petrole | | Oil & Gas Operator | May 1995 |
| 15 | Pickrell Drilling Co., Inc. | Wichita, KS 67213 | Oil & Gas Operator | Jun 2025 |
| 16 | Pintail Petroleu | | Oil & Gas Operator | Dec 1995 |
| 17 | Pintail Petroleum, LTD. | Wichita, KS 67202 | Oil & Gas Operator | Apr 2021 |
| 18 | Pioneer Exploration Company | Houston, TX 77090 | Oil & Gas Operator | Jul 2025 |
| 19 | Pioneer Exploration, LLC | Houston, TX 77090 | Oil & Gas Operator | Aug 2025 |
| 20 | Pioneer Natural Resources USA Inc | Irving, TX 75039 | Oil & Gas Operator | Jun 2025 |
| 21 | Plano Petroleum Corporation | McKinney, TX 75070 | Oil & Gas Operator | Jun 2025 |
| 22 | Pratt Well Service, Inc. | Pratt, KS 67124 | Oil & Gas Operator | Jun 2025 |