| 1 | Palomino Petroleum Inc | Newton, KS 67114 | Oil & Gas Operator | Jun 2025 |
| 2 | Parrish Corporat | | Oil & Gas Operator | Oct 1994 |
| 3 | Parrish Corporation | Wichita, KS 67202 | Oil & Gas Operator | Jan 2025 |
| 4 | Patterson Energy LLC | Hays, KS 67601 | Oil Operator | Jun 2025 |
| 5 | Patterson Jerry | | Oil Operator | Jan 1995 |
| 6 | Patton Oil Compa | | Oil & Gas Operator | Nov 1994 |
| 7 | Pelican Hill Oil & Gas, Inc. | Carlsbad, CA 92010 | Oil & Gas Operator | May 2013 |
| 8 | Petroleum Corpor | | Oil Operator | Jan 1983 |
| 9 | Petroleum Incorp | | Oil & Gas Operator | Apr 1993 |
| 10 | Petroleum Manage | | Oil & Gas Operator | Oct 1994 |
| 11 | Petroleum Management, Inc. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Dec 2025 |
| 12 | Petropro Petroleum LLC | | Oil Operator | Jun 2025 |
| 13 | Phillips Exploration Company L.C. | Andover, KS 67002 | Oil & Gas Operator | Jun 2025 |
| 14 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 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 | Prater Oil & Gas Operations, Inc. | Pratt, KS 67124 | Oil & Gas Operator | Jun 2025 |
| 19 | Pratt Well Service, Inc. | Pratt, KS 67124 | Oil & Gas Operator | Jun 2025 |
| 20 | Pratt, Don E. | Hays, KS 67601 | Oil Operator | Dec 1999 |
| 21 | Production Drill | | Oil Operator | Oct 1994 |
| 22 | Production Drilling, Inc. | Hays, KS 67601 | Oil Operator | Jun 2025 |