| 1401 | Pittencrieff (Gulf Coast), Inc. | Abilene, TX 79608 | Oil & Gas Operator | Sep 1998 |
| 1402 | Pittencrieff America Inc | Abilene, TX 79608 | Oil & Gas Operator | Feb 2003 |
| 1403 | Pittman Kenneth | | Oil Operator | Mar 1995 |
| 1404 | Pittman, Joe N. | | Oil & Gas Operator | Apr 1985 |
| 1405 | Pittman-Allen Operating LLC | Oklahoma City, OK 73122-1105 | Gas Operator | Feb 2016 |
| 1406 | Pitts Energy Co. | Midland, TX 79707 | Oil & Gas Operator | Jul 2026 |
| 1407 | Pitts Oil Co-Dallas Prod Inc | | Oil & Gas Operator | Jun 1991 |
| 1408 | Pitts, Charles Company | Abilene, TX 79604 | Oil & Gas Operator | Dec 1997 |
| 1409 | Pitts, W. C. | | Oil Operator | Jan 1988 |
| 1410 | Pivonka Investments LLC | | Oil & Gas Operator | Jun 2026 |
| 1411 | Pixley Carlis D | Marlow, OK 73055 | Oil & Gas Operator | Sep 1999 |
| 1412 | Pizzi, Ricardo A. | Attica, NY 14011 | Gas Operator | Dec 2025 |
| 1413 | PK Gath & Oilfield SVCS, Inc. | Cleburne, TX 76031 | Oil & Gas Operator | Jul 2026 |
| 1414 | PK Petroleum LLC | Pampa, TX 79065 | Oil & Gas Operator | Jul 2026 |
| 1415 | PKS Energy Savers Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Jul 1994 |
| 1416 | Place Oil And Gas Co. | Eastland, TX 76448 | Oil & Gas Operator | Jul 2026 |
| 1417 | Place, Steve | El Dorado, KS 67042 | Oil Operator | Dec 2019 |
| 1418 | Placer Oil Co. | Sugar Land, TX 77479 | Oil & Gas Operator | Apr 2008 |
| 1419 | Placid Oil Co., Et Al | | Oil & Gas Operator | Jun 1983 |
| 1420 | Placid Oil Company | Houston, TX 77227 | Oil & Gas Operator | Mar 2008 |
| 1421 | Placid Operating, LLC | Dallas, TX 75230 | Oil & Gas Operator | Jul 2021 |
| 1422 | Plains Exploration & Prod. Co. | Houston, TX 77002 | Oil & Gas Operator | Jul 2013 |
| 1423 | Plains Marketing, LP | Cushing, OK 74023 | Oil Operator | Jan 2012 |
| 1424 | Plains Oil & Gas | Cushing, OK 74023-4819 | Oil & Gas Operator | Jan 2019 |
| 1425 | Plains Oil Compa | | Oil & Gas Operator | Aug 1988 |
| 1426 | Plains Petroleum | | Gas Operator | Dec 1996 |
| 1427 | Plains Petroleum Operating Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2014 |
| 1428 | Plains Production Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1995 |
| 1429 | Plains Radio Pet Co | Midland, TX 79703 | Oil & Gas Operator | Apr 2023 |
| 1430 | Plains Resources Inc. | Houston, TX 77002 | Oil & Gas Operator | Jul 2008 |
| 1431 | Plainsmen Energy LLC | Enid, OK 73703-5747 | Oil & Gas Operator | May 2026 |
| 1432 | Planet Associates Inc | Denver, CO 80218 | Oil Operator | Dec 1994 |
| 1433 | Planet Energy, LLC | | Oil & Gas Operator | Dec 2015 |
| 1434 | Planet Operating, LLC | | Oil & Gas Operator | Dec 2024 |
| 1435 | Planet Resource Operating, LLC | | Oil & Gas Operator | Nov 2024 |
| 1436 | Planetierra Three Partnership | Sunray, TX 79086 | Oil & Gas Operator | Jul 2026 |
| 1437 | Plano Corp. | | Oil & Gas Operator | Mar 2005 |
| 1438 | Plano Petroleum | | Oil & Gas Operator | Dec 1994 |
| 1439 | Plano Petroleum Corporation | McKinney, TX 75070 | Oil & Gas Operator | Dec 2019 |
| 1440 | Plano Petroleum LLC | Plano, TX 75093-8773 | Oil & Gas Operator | Apr 2013 |
| 1441 | Plantation Oil Company | | Oil Operator | Dec 2006 |
| 1442 | Plantation Operating Co., Inc. | Holliday, TX 76366 | Oil & Gas Operator | Jul 2026 |
| 1443 | Plantation Operating, LLC | Houston, TX 77041 | Oil & Gas Operator | Nov 2011 |
| 1444 | Plants & Goodwin Inc | Bradford, PA 16701-3733 | Oil & Gas Operator | Dec 2018 |
| 1445 | Plateau Energy, LLC | Smyer, TX 79367 | Oil & Gas Operator | Dec 2024 |
| 1446 | Plateau Operating Corporation | Nashville, TN 37205 | Oil & Gas Operator | Mar 2026 |
| 1447 | Platform Operating, LLC | Midland, TX 79702 | Oil & Gas Operator | Jul 2026 |
| 1448 | Platinum Exploration Inc. | Midland, TX 79701 | Oil & Gas Operator | Jul 2026 |
| 1449 | Platinum Gas Properties LLC | | Gas Operator | May 2026 |
| 1450 | Platinum Oil & Gas, L.L.C. | San Juan, TX 78589 | Oil & Gas Operator | Jul 2026 |
| 1451 | Platinum Oil Properties, LLC | Greenwood VIllage, CO 80111 | Oil & Gas Operator | Aug 2006 |
| 1452 | Platinum Properties Inc. | Wichita Falls, TX 76301 | Oil Operator | Aug 2003 |
| 1453 | Platt Oil Production | | Oil & Gas Operator | Jan 2007 |
| 1454 | Platte Valley Oi | | Oil Operator | Jul 1987 |
| 1455 | Platte Valley Oil Co Inc | Ralston, NE 68127 | Oil Operator | Mar 2026 |
| 1456 | Playa Minerals & Energy, Inc. | Houston, TX 77060 | Oil & Gas Operator | Nov 2003 |
| 1457 | Playa Oil & Gas, LP | | Oil & Gas Operator | Apr 2009 |
| 1458 | Pleasant Hill Oil Co | Carrollton, OH 44615 | Oil Operator | Dec 2006 |
| 1459 | Pleasant Oil & Gas | Clarendon, PA 16313-4532 | Oil & Gas Operator | Dec 2025 |
| 1460 | Pledger Operating Co. Inc. | | Oil & Gas Operator | May 2026 |
| 1461 | Pledger West Broussard Operating, LLC | | Oil & Gas Operator | Dec 2024 |
| 1462 | Plegel Oil Company Inc. | | Oil & Gas Operator | May 2026 |
| 1463 | Plemons Enterprises | Borger, TX 79008 | Oil & Gas Operator | Aug 1998 |
| 1464 | Plenergy Dev LTD | | Oil & Gas Operator | Jun 2004 |
| 1465 | Pletcher Oil Limited Liability Company | Ardmore, OK 73401 | Oil & Gas Operator | May 2026 |
| 1466 | PLF Energy, LLC | Le Roy, NY 14482 | Gas Operator | Dec 2025 |
| 1467 | Plo Inc | Amarillo, TX 79109-6222 | Gas Operator | Mar 2015 |
| 1468 | Plo'S Oil & Gas | Carrizo SPGS, TX 78834 | Oil & Gas Operator | Jul 2026 |
| 1469 | Plotner Oil Company | Oklahoma City, OK 73122 | Oil & Gas Operator | Apr 2026 |
| 1470 | Plotner Ralph Oil & Gas Inv Co | Oklahoma City, OK 73112 | Oil & Gas Operator | Nov 2021 |
| 1471 | Ploutos, LLC | | Oil Operator | May 2021 |
| 1472 | Plover Production Company | Fort Worth, TX 76109 | Oil & Gas Operator | Jul 2006 |
| 1473 | PLR Energy, LLC | Houston, TX 77079 | Oil Operator | May 2018 |
| 1474 | PLS Operating Co, Inc. | | Oil & Gas Operator | Jul 1989 |
| 1475 | Plug Nickel Oil Company Inc | | Oil & Gas Operator | Apr 2026 |
| 1476 | Plum Creek Energy, LLC | Ellinwood, KS 67526 | Oil & Gas Operator | Mar 2026 |
| 1477 | Plumb Operating Company, Inc. | | Oil & Gas Operator | Dec 1989 |
| 1478 | Plumb Resources, Inc. | Houston, TX 77096 | Oil & Gas Operator | Jun 1998 |
| 1479 | Plumley, M. C. & Associates | Borger, TX 79008 | Oil & Gas Operator | Jul 2026 |
| 1480 | Plummer Energy Inc | Pauls Valley, OK 73075-8663 | Oil & Gas Operator | Nov 2016 |
| 1481 | Plymouth Exploration LLC | Tulsa, OK 74119-1031 | Oil & Gas Operator | Dec 2025 |
| 1482 | Plymouth Resource Group LLC | | Oil & Gas Operator | Dec 1999 |
| 1483 | Plymouth Resource GRP 1998 LLC | | Oil & Gas Operator | Mar 2000 |
| 1484 | Plymouth Resources Group II Inc | | Oil & Gas Operator | May 2007 |
| 1485 | PM Oil & Gas, Inc. | San Angelo, TX 76903 | Oil Operator | Jul 2026 |
| 1486 | PMB Energy, Inc. | Snyder, TX 79549 | Oil & Gas Operator | Jul 2026 |
| 1487 | PMD Oil Recovery LLC | Perry, OK 73077 | Oil & Gas Operator | May 2026 |
| 1488 | Pmi Energy Co. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Aug 2002 |
| 1489 | PMJ, Inc. | Man, WV 25635-0000 | Gas Operator | Dec 2021 |
| 1490 | PML Operating LLC | | Oil Operator | May 2026 |
| 1491 | Pmo | Garland, TX 75040 | Oil & Gas Operator | Feb 2018 |
| 1492 | PMR Energy, LLC | San Antonio, TX 78209 | Oil Operator | Jul 2026 |
| 1493 | PN Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2003 |
| 1494 | PNB Petrol Haddad & Brooks Inc | Atlanta, GA 30305-1555 | Oil & Gas Operator | Dec 1989 |
| 1495 | PNG Gathering, LLC | Wellington, TX 79095 | Oil & Gas Operator | Dec 2024 |
| 1496 | PNG Operating Company | Oklahoma City, OK 73172 | Oil & Gas Operator | Jul 2026 |
| 1497 | PNG Production, LLC | Wellington, TX 79095 | Oil & Gas Operator | Jul 2026 |
| 1498 | PNL Operating, LLC | Casper, WY 82602 | Gas Operator | Dec 2022 |
| 1499 | PNP Operating Company LLC | San Antonio, TX 78230 | Oil Operator | Jul 2026 |
| 1500 | PO&G Operating, LLC (Pogo) | Houston, TX 77057 | Oil & Gas Operator | May 2026 |