| 1401 | Plains Marketing, LP | Cushing, OK 74023 | Oil Operator | Jan 2012 |
| 1402 | Plains Oil & Gas | Cushing, OK 74023-4819 | Oil & Gas Operator | Jan 2019 |
| 1403 | Plains Oil Compa | | Oil & Gas Operator | Aug 1988 |
| 1404 | Plains Petroleum | | Gas Operator | Dec 1996 |
| 1405 | Plains Petroleum Operating Co. | Denver, CO 80202 | Oil & Gas Operator | Dec 2014 |
| 1406 | Plains Production Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1995 |
| 1407 | Plains Radio Pet Co | Midland, TX 79703 | Oil & Gas Operator | Apr 2023 |
| 1408 | Plains Resources Group LLC | Wynnewood, OK 73098 | Oil & Gas Operator | Jul 2025 |
| 1409 | Plains Resources Inc. | Houston, TX 77002 | Oil & Gas Operator | Jul 2008 |
| 1410 | Plainsmen Energy LLC | Enid, OK 73703-5747 | Oil & Gas Operator | Jul 2025 |
| 1411 | Planet Energy, LLC | | Oil & Gas Operator | Dec 2015 |
| 1412 | Planet Operating, LLC | | Oil & Gas Operator | Dec 2024 |
| 1413 | Planet Resource Operating, LLC | | Oil & Gas Operator | Nov 2024 |
| 1414 | Planetierra Three Partnership | Sunray, TX 79086 | Oil & Gas Operator | Sep 2025 |
| 1415 | Plano Corp. | | Oil & Gas Operator | Mar 2005 |
| 1416 | Plano Petroleum | | Oil & Gas Operator | Dec 1994 |
| 1417 | Plano Petroleum Corporation | McKinney, TX 75070 | Oil & Gas Operator | May 2025 |
| 1418 | Plano Petroleum LLC | Plano, TX 75093-8773 | Oil & Gas Operator | Apr 2013 |
| 1419 | Plantation Oil Company | | Oil Operator | Dec 2006 |
| 1420 | Plantation Operating Co., Inc. | Holliday, TX 76366 | Oil & Gas Operator | Sep 2025 |
| 1421 | Plantation Operating, LLC | Houston, TX 77041 | Oil & Gas Operator | Nov 2011 |
| 1422 | Plants & Goodwin Inc | Bradford, PA 16701-3733 | Oil & Gas Operator | Dec 2018 |
| 1423 | Plateau Energy, LLC | Smyer, TX 79367 | Oil & Gas Operator | Dec 2023 |
| 1424 | Plateau Operating Corporation | Nashville, TN 37205 | Gas Operator | May 2025 |
| 1425 | Platform Operating, LLC | Midland, TX 79702 | Oil & Gas Operator | Sep 2025 |
| 1426 | Platinum Exploration Inc. | Midland, TX 79701 | Oil & Gas Operator | Sep 2025 |
| 1427 | Platinum Gas Properties LLC | | Gas Operator | Aug 2025 |
| 1428 | Platinum Oil & Gas, L.L.C. | San Juan, TX 78589 | Oil & Gas Operator | Sep 2025 |
| 1429 | Platinum Oil Properties, LLC | Greenwood VIllage, CO 80111 | Oil & Gas Operator | Aug 2006 |
| 1430 | Platinum Properties Inc. | Wichita Falls, TX 76301 | Oil Operator | Aug 2003 |
| 1431 | Platt Oil Production | | Oil & Gas Operator | Jan 2007 |
| 1432 | Platte Valley Oi | | Oil Operator | Jul 1987 |
| 1433 | Platte Valley Oil Co., Inc. | Ralston, NE 68127 | Oil Operator | May 2025 |
| 1434 | Playa Minerals & Energy, Inc. | Houston, TX 77060 | Oil & Gas Operator | Nov 2003 |
| 1435 | Playa Oil & Gas, LP | | Oil & Gas Operator | Apr 2009 |
| 1436 | Pleasant Hill Oil Co | Carrollton, OH 44615 | Oil Operator | Dec 2006 |
| 1437 | Pledger Operating Co. Inc. | | Oil & Gas Operator | Jul 2025 |
| 1438 | Pledger West Broussard Operating, LLC | | Oil & Gas Operator | Dec 2024 |
| 1439 | Plegel Oil Company Inc. | | Oil & Gas Operator | Jul 2025 |
| 1440 | Plemons Enterprises | Borger, TX 79008 | Oil & Gas Operator | Aug 1998 |
| 1441 | Plenergy Dev LTD | | Oil & Gas Operator | Jun 2004 |
| 1442 | Pletcher Oil Limited Liability Company | Ardmore, OK 73401 | Oil & Gas Operator | Jun 2025 |
| 1443 | PLF Energy, LLC | Le Roy, NY 14482 | Gas Operator | Dec 2024 |
| 1444 | Plo Inc | Amarillo, TX 79109-6222 | Gas Operator | Mar 2015 |
| 1445 | Plo'S Oil & Gas | Carrizo SPGS, TX 78834 | Oil & Gas Operator | Sep 2025 |
| 1446 | Plotner Oil Company | Oklahoma City, OK 73122 | Oil & Gas Operator | Jun 2025 |
| 1447 | Plotner Ralph Oil & Gas Inv Co | Oklahoma City, OK 73112 | Oil & Gas Operator | Nov 2021 |
| 1448 | Ploutos, LLC | | Oil Operator | May 2021 |
| 1449 | Plover Production Company | Fort Worth, TX 76109 | Oil & Gas Operator | Jul 2006 |
| 1450 | PLR Energy, LLC | Houston, TX 77079 | Oil Operator | May 2018 |
| 1451 | PLS Operating Co, Inc. | | Oil & Gas Operator | Jul 1989 |
| 1452 | Plug Nickel Oil Company Inc | | Oil & Gas Operator | Jul 2025 |
| 1453 | Plum Creek Energy, LLC | Ellinwood, KS 67526 | Oil & Gas Operator | May 2025 |
| 1454 | Plumb Operating Company, Inc. | | Oil & Gas Operator | Dec 1989 |
| 1455 | Plumb Resources, Inc. | Houston, TX 77096 | Oil & Gas Operator | Jun 1998 |
| 1456 | Plumley, M. C. & Associates | Borger, TX 79008 | Oil & Gas Operator | Sep 2025 |
| 1457 | Plummer Energy Inc | Pauls Valley, OK 73075-8663 | Oil & Gas Operator | Nov 2016 |
| 1458 | Plymouth Exploration LLC | Tulsa, OK 74119-1031 | Oil & Gas Operator | Jul 2025 |
| 1459 | Plymouth Resource Group LLC | | Oil & Gas Operator | Dec 1999 |
| 1460 | Plymouth Resource GRP 1998 LLC | | Oil & Gas Operator | Mar 2000 |
| 1461 | Plymouth Resources Group II Inc | | Oil & Gas Operator | May 2007 |
| 1462 | PM Oil & Gas, Inc. | San Angelo, TX 76903 | Oil Operator | Sep 2025 |
| 1463 | PMB Energy, Inc. | Snyder, TX 79549 | Oil & Gas Operator | Sep 2025 |
| 1464 | PMD Oil Recovery LLC | Oklahoma City, OK 73129 | Oil & Gas Operator | Jun 2025 |
| 1465 | Pmi Energy Co. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Aug 2002 |
| 1466 | PMJ, Inc. | Man, WV 25635-0000 | Gas Operator | Dec 2021 |
| 1467 | Pmo | Garland, TX 75040 | Oil & Gas Operator | Feb 2018 |
| 1468 | PMR Energy, LLC | San Antonio, TX 78209 | Oil Operator | Sep 2025 |
| 1469 | PN Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2003 |
| 1470 | PNB Petrol Haddad & Brooks Inc | Atlanta, GA 30305-1555 | Oil & Gas Operator | Dec 1989 |
| 1471 | PNG Gathering, LLC | Wellington, TX 79095 | Oil & Gas Operator | Dec 2024 |
| 1472 | PNG Operating Company | Oklahoma City, OK 73172 | Oil & Gas Operator | Sep 2025 |
| 1473 | PNG Production, LLC | Wellington, TX 79095 | Oil & Gas Operator | Sep 2025 |
| 1474 | PNL Operating, LLC | Casper, WY 82602 | Gas Operator | Dec 2022 |
| 1475 | PNP Operating Company LLC | San Antonio, TX 78230 | Oil Operator | Sep 2025 |
| 1476 | PO&G Operating, LLC (Pogo) | Houston, TX 77057 | Oil & Gas Operator | Jul 2025 |
| 1477 | Poblano Energy LLC | Houston, TX 77024-2217 | Oil & Gas Operator | Jun 2025 |
| 1478 | Pobres Incorporated | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 2008 |
| 1479 | Poc-I LLC | | Oil Operator | Jul 2025 |
| 1480 | Pocahontas Gas LLC | | Gas Operator | Dec 2021 |
| 1481 | Poco LLC | Houston, TX 77270 | Oil & Gas Operator | Sep 2025 |
| 1482 | Poco Oil Co. | Houston, TX 77069 | Oil & Gas Operator | Mar 1997 |
| 1483 | Poco Resources LLC | Artesia, NM 88210 | Oil & Gas Operator | Jul 2024 |
| 1484 | Poe Servicing Inc | Oberlin, KS 67749 | Oil Operator | Oct 2019 |
| 1485 | Poff, H. Bryan | Fort Worth, TX 76103 | Oil & Gas Operator | Mar 2008 |
| 1486 | Pogo Oil & Gas Operating, Inc | Hobbs, NM 88240 | Oil & Gas Operator | Dec 2019 |
| 1487 | Pogo Panhandle 2004, L.P. | Houston, TX 77002 | Oil & Gas Operator | Oct 2017 |
| 1488 | Pogo Producing Company | Houston, TX 77002 | Oil & Gas Operator | Jan 2008 |
| 1489 | Pogo Producing Company LLC | Houston, TX 77002 | Oil & Gas Operator | Jul 2025 |
| 1490 | Pogue Randall | Ada, OK 74821-1547 | Oil & Gas Operator | Apr 2014 |
| 1491 | Pogue, Randall R. | Ada, OK 74820 | Oil & Gas Operator | May 2003 |
| 1492 | Pohlman Oil LLC | Hays, KS 67601 | Oil Operator | Apr 2025 |
| 1493 | Point Energy Partners Petro, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Sep 2025 |
| 1494 | Pointe Coupee Energy, Inc | | Oil Operator | Dec 2013 |
| 1495 | Pointer Petroleum Corp | Oklahoma City, OK 73149 | Oil & Gas Operator | Jun 2025 |
| 1496 | Polaris Energy Dev Co | Tulsa, OK 74135 | Oil & Gas Operator | Apr 2000 |
| 1497 | Polaris Enterprises Inc | Houston, TX 77057 | Oil & Gas Operator | Oct 1998 |
| 1498 | Polaris Operating, LLC | Dallas, TX 75225 | Oil & Gas Operator | Sep 2025 |
| 1499 | Polaris Petroleum Operations LLC | Branson West, MO 65737 | Oil & Gas Operator | May 2019 |
| 1500 | Polaris Production Corp. | Midland, TX 79702 | Oil & Gas Operator | Jan 2024 |