| 1 | P4 Operating, LLC | Midland, TX 79710 | Oil & Gas Operator | Apr 2024 |
| 2 | Pacific Exploration Oper Co, LLC | Houston, TX 77057 | Oil Operator | Apr 2024 |
| 3 | Pactola Development Co | Tulsa, OK 74159 | Oil & Gas Operator | Sep 2004 |
| 4 | Panada Exploration, Inc. | Tulsa, OK 74135 | Oil & Gas Operator | Jun 1996 |
| 5 | Panhandle Oil & Gas Inc | Oklahoma City, OK 73112-5688 | Oil & Gas Operator | May 2007 |
| 6 | Parker & Parsley Acq. Group LLC | Midland, TX 79702 | Oil & Gas Operator | Aug 2002 |
| 7 | Parker & Parsley Development Co. | Midland, TX 79702 | Oil & Gas Operator | May 1995 |
| 8 | Parker & Parsley Development L.P | Midland, TX 79702 | Oil & Gas Operator | Oct 2007 |
| 9 | Parker & Parsley Operating LLC | Midland, TX 79702 | Oil & Gas Operator | Nov 2000 |
| 10 | Parsley Energy Operations, LLC | Irving, TX 75038 | Oil & Gas Operator | Jan 2021 |
| 11 | Patriot Resources, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2017 |
| 12 | Patterson Petroleum, Inc. | Snyder, TX 79550 | Oil & Gas Operator | Feb 2000 |
| 13 | PDC Energy | Denver, CO 80203 | Oil & Gas Operator | Nov 2012 |
| 14 | PDC-WV-Co Corporation | Denver, CO 80203 | Oil & Gas Operator | Aug 2010 |
| 15 | Pecos Operating Company, LLC | Midland, TX 79701 | Oil & Gas Operator | Jun 2021 |
| 16 | Ped Oil Corporation | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 17 | Penergy | Midland, TX 79710 | Oil & Gas Operator | Apr 2024 |
| 18 | Pennant Dev. And Prod., LLC | Midland, TX 79702 | Oil Operator | Apr 2024 |
| 19 | Pentex Operating Company | Oklahoma City, OK 73132 | Oil & Gas Operator | Oct 1994 |
| 20 | Perimeter Resource Company | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 21 | Permex Petroleum Corporation | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 22 | Permian Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 23 | Perry Producing Company, Inc. | Ackerly, TX 79713 | Oil & Gas Operator | Apr 2024 |
| 24 | Petro-West Corporation | Lubbock, TX 79404 | Oil & Gas Operator | Oct 2001 |
| 25 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
| 26 | Petrolegacy Energy II, LLC | Denver, CO 80202 | Oil & Gas Operator | Apr 2024 |
| 27 | Petroleum Reserve Corporation | Plymouth MTNG, PA 19462 | Oil & Gas Operator | May 2008 |
| 28 | Petroplex Energy Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 29 | Petroplex Equipment, Inc. | Midland, TX 79701 | Oil & Gas Operator | May 2019 |
| 30 | PG&E Resources Company | Houston, TX 77042 | Oil & Gas Operator | May 1995 |
| 31 | Phillips 66 Company | Bartlesville, OK 74004 | Oil & Gas Operator | Aug 1997 |
| 32 | Phoenix Hydrocarbons Operating | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 33 | Piedra Operating, LLC | Denver, CO 80202 | Oil & Gas Operator | May 2023 |
| 34 | Pinon Operating, LLC | Midland, TX 79702 | Oil & Gas Operator | Sep 2023 |
| 35 | Pioneer Natural Res. USA, Inc. | Irving, TX 75038 | Oil & Gas Operator | Apr 2024 |
| 36 | Pitco Investments, LTD. | Scottsdale, AZ 85261 | Oil & Gas Operator | Jan 2013 |
| 37 | Pitts Energy Co. | Midland, TX 79707 | Oil & Gas Operator | Apr 2024 |
| 38 | Placid Oil Company | Houston, TX 77227 | Oil & Gas Operator | Mar 2008 |
| 39 | Plains Marketing LP | Cushing, OK 74023 | Oil & Gas Operator | Dec 2022 |
| 40 | Plains Petroleum Operating Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2014 |
| 41 | Pogo Panhandle 2004, L.P. | Houston, TX 77002 | Oil & Gas Operator | Oct 2017 |
| 42 | Pogo Producing Company | Houston, TX 77002 | Oil & Gas Operator | Jan 2008 |
| 43 | Pogo Producing Company LLC | Houston, TX 77002 | Oil & Gas Operator | Jan 2024 |
| 44 | PPC Operating Company LLC | Houston, TX 77279 | Oil & Gas Operator | Jul 2019 |
| 45 | Prasad, Hari Production Co. | Midland, TX 79701 | Oil & Gas Operator | Apr 2024 |
| 46 | Prime Operating Company | Houston, TX 77024 | Oil & Gas Operator | Apr 2024 |
| 47 | Prize Operating Company | Grapevine, TX 76051 | Oil & Gas Operator | Aug 2016 |
| 48 | Prospctv Invstmnt & TRDG Co, LTD | Tulsa, OK 74170 | Oil & Gas Operator | May 2001 |
| 49 | Psi Production, Inc. | Tyler, TX 75702 | Gas Operator | Jan 1994 |
| 50 | Pure Resources, L.P. | Midland, TX 79701 | Oil & Gas Operator | Mar 2006 |
| 51 | Purvis Operating Co. | Midland, TX 79710 | Oil & Gas Operator | Apr 2024 |
| 52 | Purvis, J. H. | Midland, TX 79702 | Oil & Gas Operator | Dec 1994 |