| 1 | Paleo Oil Company LLC | Corpus Chrsti, TX 78411 | Oil & Gas Operator | Oct 2025 |
| 2 | Par Producing Company | Snyder, TX 79550 | Oil & Gas Operator | Jun 2017 |
| 3 | Parker & Parsley Development Co. | Midland, TX 79702 | Oil & Gas Operator | May 1995 |
| 4 | Parker & Parsley Development L.P | Midland, TX 79702 | Oil & Gas Operator | Oct 2007 |
| 5 | Parker & Parsley Producing L.P. | Midland, TX 79702 | Oil & Gas Operator | Oct 1997 |
| 6 | Parkway Petroleum, Inc. | Giddings, TX 78942 | Oil & Gas Operator | Jul 1997 |
| 7 | Partners Production, Inc. | Caldwell, TX 77836 | Oil & Gas Operator | Oct 2025 |
| 8 | Patterson Energy Corporation | Dallas, TX 75205 | Oil & Gas Operator | Oct 2025 |
| 9 | Patterson Petroleum LLC | Snyder, TX 79550 | Oil & Gas Operator | Oct 2007 |
| 10 | Patterson Petroleum LP | Snyder, TX 79550 | Oil & Gas Operator | Mar 2008 |
| 11 | Patterson Petroleum, Inc. | Snyder, TX 79550 | Oil & Gas Operator | Feb 2000 |
| 12 | Pegasus Petroleum Corporation | Corpus Chrsti, TX 78476 | Oil & Gas Operator | Oct 2025 |
| 13 | Penn VIrginia Oil & Gas, L.P. | Houston, TX 77084 | Oil & Gas Operator | Nov 2022 |
| 14 | Permian West Corp. | Odessa, TX 79762 | Oil & Gas Operator | Oct 2025 |
| 15 | Petra Oleum Corp. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 16 | Petro Vest, Inc. | Houston, TX 77046 | Oil & Gas Operator | Sep 2014 |
| 17 | Petrocorp Incorporated,A TX.Corp | Tulsa, OK 74170 | Oil & Gas Operator | Apr 2005 |
| 18 | Pharaoh & Associates, Inc. | Houston, TX 77252 | Oil & Gas Operator | Aug 2002 |
| 19 | Pintail Production Co., Inc. | Fort Worth, TX 76132 | Oil & Gas Operator | Oct 2025 |
| 20 | Pitcock, Inc. | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 21 | Plains Petroleum Operating Co. | Denver, CO 80202 | Oil & Gas Operator | Dec 2014 |
| 22 | Plano Petroleum Corporation | McKinney, TX 75070 | Oil & Gas Operator | Jun 2025 |
| 23 | Plantation Operating Co., Inc. | Holliday, TX 76366 | Oil & Gas Operator | Oct 2025 |
| 24 | Pmo | Garland, TX 75040 | Oil & Gas Operator | Feb 2018 |
| 25 | Poco LLC | Houston, TX 77270 | Oil & Gas Operator | Oct 2025 |
| 26 | Poff, H. Bryan | Fort Worth, TX 76103 | Oil & Gas Operator | Mar 2008 |
| 27 | Powerline Energy Corp. | Arlington, TX 76015 | Oil & Gas Operator | Oct 2025 |
| 28 | Precise Development, Inc. | Austin, TX 78709 | Oil & Gas Operator | May 2005 |
| 29 | Price Drilling & Exploration Co. | Benavides, TX 78341 | Oil & Gas Operator | Jul 2013 |
| 30 | Pride Energy Company | Tulsa, OK 74170 | Oil & Gas Operator | Oct 2025 |
| 31 | Progenies Operating LLC | Austin, TX 78746 | Oil & Gas Operator | Oct 2025 |
| 32 | Proline Energy Resources Inc | Sugar Land, TX 77479 | Oil & Gas Operator | Oct 2025 |
| 33 | Purvis Oil Corp | Midland, TX 79702 | Oil & Gas Operator | Jul 1994 |
| 34 | Purvis, J. H. | Midland, TX 79702 | Oil & Gas Operator | Dec 1994 |
| 35 | Pyramid Energy Inc | San Antonio, TX 78216 | Oil & Gas Operator | Feb 2012 |