| 1 | Panhandle Oil & Gas Inc | Oklahoma City, OK 73112-5688 | Oil & Gas Operator | May 2007 |
| 2 | Panther Creek Resources, LLC | Denver, CO 80202 | Oil & Gas Operator | May 2012 |
| 3 | Partee Drilling Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Dec 2024 |
| 4 | Peccary Corporation | Lubbock, TX 79453 | Oil & Gas Operator | Aug 2003 |
| 5 | Peden Energy | Lubbock, TX 79424 | Oil & Gas Operator | Dec 2004 |
| 6 | Peden Energy, Inc. | Wolfforth, TX 79382 | Oil & Gas Operator | Dec 2024 |
| 7 | Pennzenergy Exp. & Prod., L.L.C. | Houston, TX 77210 | Oil & Gas Operator | Mar 2000 |
| 8 | Pennzoil Exploration & Production Co. | Carthage, TX 75633 | Oil & Gas Operator | Mar 2008 |
| 9 | Pennzoil Petroleum Company | Houston, TX 77252 | Oil & Gas Operator | Nov 1999 |
| 10 | Penroc Oil Corp. | Hobbs, NM 88241 | Oil & Gas Operator | Sep 2024 |
| 11 | Petro-West Corporation | Lubbock, TX 79404 | Oil & Gas Operator | Oct 2001 |
| 12 | Phillips 66 Company | Bartlesville, OK 74004 | Oil & Gas Operator | Aug 1997 |
| 13 | Pipeline Management, Inc. | Lubbock, TX 79401 | Oil & Gas Operator | Dec 2002 |
| 14 | Plains Marketing LP | Cushing, OK 74023 | Oil & Gas Operator | Dec 2022 |
| 15 | Plateau Energy, LLC | Smyer, TX 79367 | Oil & Gas Operator | Dec 2022 |
| 16 | Poor Boy Operating Co. | Lubbock, TX 79403 | Oil Operator | Jan 2022 |
| 17 | Praxis Energy, LLC | Midland, TX 79705 | Oil Operator | Apr 2002 |
| 18 | Prospctv Invstmnt & TRDG Co, LTD | Tulsa, OK 74170 | Oil & Gas Operator | May 2001 |
| 19 | PSP Operating, Inc. | Lubbock, TX 79413 | Oil & Gas Operator | Jun 1999 |