| 1 | P.O.&G. Operating, LLC | Houston, TX 77057 | Oil & Gas Operator | Oct 2025 |
| 2 | Palomino Petroleum | Newton, KS 67114 | Oil Operator | Oct 2003 |
| 3 | Pan Western Energy Corporation | Tulsa, OK 74114 | Oil & Gas Operator | Oct 2025 |
| 4 | Panhandle Petrol | | Oil Operator | Jun 1987 |
| 5 | Paradise Creek Oil & Gas | Plainville, KS 67663 | Oil Operator | Jun 2025 |
| 6 | Patterson Energy LLC | Hays, KS 67601 | Oil Operator | Jun 2025 |
| 7 | Patton Oil Compa | | Oil & Gas Operator | Nov 1994 |
| 8 | Patton Oil Company | Midland, TX 79702 | Oil & Gas Operator | Jun 2007 |
| 9 | Paul Bowman Oil Trust | Codell, KS 67663 | Oil Operator | Jun 2025 |
| 10 | Peak Operating LLC | Oklahoma City, OK 73157 | Oil & Gas Operator | Jun 2025 |
| 11 | Pendleton Land & | | Oil Operator | Aug 1985 |
| 12 | Petr Corporation | | Oil Operator | Apr 1988 |
| 13 | Petro Dynamics C | | Oil & Gas Operator | Sep 1988 |
| 14 | Petro-Lewis Corp. | | Oil & Gas Operator | Feb 1994 |
| 15 | Petroleum Energy | | Oil & Gas Operator | Mar 1991 |
| 16 | Petroleum Incorp | | Oil & Gas Operator | Apr 1993 |
| 17 | Petroleum Manage | | Oil & Gas Operator | Oct 1994 |
| 18 | Petroleum Property Services, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Jun 2025 |
| 19 | Pfeifer Explorations, LLC | Hays, KS 67601 | Oil Operator | Jun 2025 |
| 20 | Phillips Petrole | | Oil & Gas Operator | May 1995 |
| 21 | Pickrell Drilling Co., Inc. | Wichita, KS 67213 | Oil & Gas Operator | Jun 2025 |
| 22 | Piland Resources | | Oil & Gas Operator | Mar 2022 |
| 23 | Pintail Petroleum, LTD. | Wichita, KS 67202 | Oil & Gas Operator | Apr 2021 |
| 24 | Pioneer Resources | Jefferson, CO 80456 | Oil Operator | Dec 2009 |
| 25 | Pioneer Resources Inc. | Phillipsburg, KS 67661 | Oil & Gas Operator | Oct 2020 |
| 26 | Pratt Well Service, Inc. | Pratt, KS 67124 | Oil & Gas Operator | Jun 2025 |
| 27 | Pratt, Don E. | Hays, KS 67601 | Oil Operator | Dec 1999 |
| 28 | Price Robert R O | | Oil Operator | Apr 1995 |
| 29 | Price, Robert R. Operating, Inc. | Tulsa, OK 74147 | Oil Operator | May 1996 |
| 30 | Producers Equipm | | Oil Operator | Dec 1996 |
| 31 | Production Drill | | Oil Operator | Oct 1994 |
| 32 | Production Drilling, Inc. | Hays, KS 67601 | Oil Operator | Jun 2025 |
| 33 | Prospect Oil & G | | Oil Operator | Feb 1996 |
| 34 | Prospect Oil & Gas Corp | Russell, KS 67665 | Oil Operator | Jun 2025 |
| 35 | Pyle Petroleum, Inc. | Tyler, TX 75703 | Oil & Gas Operator | Apr 2025 |