| 1 | P.M. Petroleum | | Oil Operator | Mar 1998 |
| 2 | Patton Oil Compa | | Oil & Gas Operator | Nov 1994 |
| 3 | Petro Locators, Inc. | Pratt, KS 67124 | Oil & Gas Operator | Dec 2023 |
| 4 | Petrocorp Incorporated | Tulsa, OK 74170 | Oil & Gas Operator | Nov 2021 |
| 5 | Petroleum Incorp | | Oil & Gas Operator | Apr 1993 |
| 6 | Petroleum Produc | | Oil & Gas Operator | Dec 1996 |
| 7 | Petroleum Production Management, Inc. | Shawnee Mission, KS 66202 | Oil & Gas Operator | Nov 2021 |
| 8 | Petroleum Property Services, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Dec 2023 |
| 9 | Pickrell Drilling Co., Inc. | Wichita, KS 67213 | Oil & Gas Operator | Dec 2023 |
| 10 | Plano Petroleum | | Oil & Gas Operator | Dec 1994 |
| 11 | Plano Petroleum Corporation | McKinney, TX 75070 | Oil & Gas Operator | Dec 2023 |
| 12 | Plum Creek Energy, LLC | Ellinwood, KS 67526 | Oil & Gas Operator | Dec 2023 |
| 13 | Prater Oil & Gas Operations, Inc. | Pratt, KS 67124 | Oil & Gas Operator | Dec 2023 |
| 14 | Pratt Well Servi | | Oil & Gas Operator | Jul 1996 |
| 15 | Pratt Well Service, Inc. | Pratt, KS 67124 | Oil & Gas Operator | Dec 2023 |
| 16 | Production Drilling, Inc. | Hays, KS 67601 | Oil Operator | Dec 2023 |