| 1401 | Pioneer Exploration, LLC | Houston, TX 77090 | Oil & Gas Operator | Dec 2024 |
| 1402 | Pioneer Exploration, LTD. | Houston, TX 77090 | Oil & Gas Operator | Sep 2008 |
| 1403 | Pioneer Feedyard, LLC | Oakley, KS 67748 | Oil Operator | Dec 2024 |
| 1404 | Pioneer Gas Pipeline, Inc. | San Angelo, TX 76903 | Oil & Gas Operator | Apr 2025 |
| 1405 | Pioneer Natural Res. (GPC), Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 1998 |
| 1406 | Pioneer Natural Res. USA, Inc. | Irving, TX 75038 | Oil & Gas Operator | Apr 2025 |
| 1407 | Pioneer Natural Resources Alaska Inc. | | Oil & Gas Operator | Jul 2014 |
| 1408 | Pioneer Natural Resources USA Inc | Irving, TX 75039 | Oil & Gas Operator | Dec 2024 |
| 1409 | Pioneer Of Oklahoma LP | Houston, TX 77090-3655 | Oil & Gas Operator | Jan 2025 |
| 1410 | Pioneer Oil & Gas | South Jordan, UT 84095 | Oil & Gas Operator | Jan 2014 |
| 1411 | Pioneer Oil Company, Inc. | Vincennes, IN 47501 | Oil & Gas Operator | Dec 2024 |
| 1412 | Pioneer Operatio | | Oil & Gas Operator | Mar 1986 |
| 1413 | Pioneer Operations, LLC | Hays, KS 67601 | Oil Operator | Dec 2024 |
| 1414 | Pioneer Prod. Corp. | | Oil & Gas Operator | Jun 1986 |
| 1415 | Pioneer Production Corp-Huggs | | Oil & Gas Operator | Jun 1986 |
| 1416 | Pioneer Prospect LLP | Sioux Falls, SD 57108 | Gas Operator | Dec 2023 |
| 1417 | Pioneer Resources Inc. | Phillipsburg, KS 67661 | Oil & Gas Operator | Oct 2020 |
| 1418 | Pioneer Resources Prod LP | Irving, TX 75039-3745 | Oil & Gas Operator | Feb 2005 |
| 1419 | Pioneer Resources Producing, L.P | Irving, TX 75039 | Oil & Gas Operator | Feb 2001 |
| 1420 | Pioneer Trucking LLC | Oklahoma City, OK 73162 | Oil Operator | Feb 2025 |
| 1421 | Pipeline Holdings, Inc | | Gas Operator | Dec 2012 |
| 1422 | Pipeline Management, Inc. | Lubbock, TX 79401 | Oil & Gas Operator | Dec 2002 |
| 1423 | Pipeline Oil & Gas, LLC | Phoenix, AZ 85016 | Oil Operator | Feb 2014 |
| 1424 | Piper Operating LLC | Stigler, OK 74462 | Oil & Gas Operator | Feb 2025 |
| 1425 | Pipes Pursie E | MT Vernon, IL 62864 | Oil & Gas Operator | Dec 2014 |
| 1426 | Piqua Petro, Inc. | Piqua, KS 66761 | Oil Operator | Dec 2024 |
| 1427 | Piqua Petroleum | | Oil Operator | Dec 1996 |
| 1428 | Pistol Ridge Partners, LLC | | Oil & Gas Operator | Jan 2025 |
| 1429 | Pita Oil & Gas, LLC | | Oil Operator | Jul 2004 |
| 1430 | Pitchfork Investments, LLC | Amarillo, TX 79109 | Oil & Gas Operator | Apr 2025 |
| 1431 | Pitchfork Oil & Gas, Inc. | Orchard, TX 77464 | Oil & Gas Operator | Apr 2025 |
| 1432 | Pitco Investments, LTD. | Scottsdale, AZ 85261 | Oil & Gas Operator | Jan 2013 |
| 1433 | Pitco Production Company | Tulsa, OK 74170-2320 | Oil & Gas Operator | May 2013 |
| 1434 | Pitcock, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 1435 | Pitman Creek, Inc. | Burlington, IA 52601 | Oil Operator | Dec 1992 |
| 1436 | Pitman John | | Oil & Gas Operator | Jan 1992 |
| 1437 | Pitman, John Douglas Revocable Trust | Oklahoma City, OK 73118 | Oil Operator | Oct 2024 |
| 1438 | Pitman, John Estate (Deceased) | Oklahoma City, OK 73104 | Oil Operator | May 2000 |
| 1439 | Pittencrieff (Gulf Coast), Inc. | Abilene, TX 79608 | Oil & Gas Operator | Sep 1998 |
| 1440 | Pittencrieff America Inc | Abilene, TX 79608 | Oil & Gas Operator | Feb 2003 |
| 1441 | Pittman Kenneth | | Oil Operator | Mar 1995 |
| 1442 | Pittman, Joe N. | | Oil & Gas Operator | Apr 1985 |
| 1443 | Pittman-Allen Operating LLC | Oklahoma City, OK 73122-1105 | Gas Operator | Feb 2016 |
| 1444 | Pitts Energy Co. | Midland, TX 79707 | Oil & Gas Operator | Apr 2025 |
| 1445 | Pitts Oil Co-Dallas Prod Inc | | Oil & Gas Operator | Jun 1991 |
| 1446 | Pitts, Charles Company | Abilene, TX 79604 | Oil & Gas Operator | Dec 1997 |
| 1447 | Pitts, W. C. | | Oil Operator | Jan 1988 |
| 1448 | Pivonka Investments LLC | | Oil & Gas Operator | Mar 2025 |
| 1449 | Pixley Carlis D | Marlow, OK 73055 | Oil & Gas Operator | Sep 1999 |
| 1450 | PK Gath & Oilfield SVCS, Inc. | Cleburne, TX 76031 | Oil & Gas Operator | Apr 2025 |
| 1451 | PK Petroleum LLC | Pampa, TX 79065 | Oil & Gas Operator | Apr 2025 |
| 1452 | PKS Energy Savers Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Jul 1994 |
| 1453 | Place Oil And Gas Co. | Eastland, TX 76448 | Oil & Gas Operator | Apr 2025 |
| 1454 | Place, Steve | El Dorado, KS 67042 | Oil Operator | Dec 2019 |
| 1455 | Placer Energy Corp | | Oil Operator | Jun 1997 |
| 1456 | Placer Oil Co. | Sugar Land, TX 77479 | Oil & Gas Operator | Apr 2008 |
| 1457 | Placid Oil Co., Et Al | | Oil & Gas Operator | Jun 1983 |
| 1458 | Placid Oil Company | Houston, TX 77227 | Oil & Gas Operator | Mar 2008 |
| 1459 | Placid Operating, LLC | Dallas, TX 75230 | Oil & Gas Operator | Jul 2021 |
| 1460 | Plains Exploration & Prod. Co. | Houston, TX 77002 | Oil & Gas Operator | Jul 2013 |
| 1461 | Plains Liquids Transport Inc | Houston, TX 77002 | Oil & Gas Operator | May 1996 |
| 1462 | Plains Marketing & Trans Inc | Houston, TX 76002 | Oil & Gas Operator | Oct 1998 |
| 1463 | Plains Marketing LP | Cushing, OK 74023 | Oil & Gas Operator | Dec 2022 |
| 1464 | Plains Oil & Gas | Cushing, OK 74023-4819 | Oil & Gas Operator | Jan 2019 |
| 1465 | Plains Oil Compa | | Oil & Gas Operator | Aug 1988 |
| 1466 | Plains Petroleum | | Gas Operator | Dec 1996 |
| 1467 | Plains Petroleum Operating Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2014 |
| 1468 | Plains Production Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1995 |
| 1469 | Plains Radio Pet Co | Midland, TX 79703 | Oil & Gas Operator | Apr 2023 |
| 1470 | Plains Resources Group LLC | Wynnewood, OK 73098 | Oil & Gas Operator | Feb 2025 |
| 1471 | Plains Resources Inc. | Houston, TX 77002 | Oil & Gas Operator | Jul 2008 |
| 1472 | Plainsmen Energy LLC | Enid, OK 73703-5747 | Oil & Gas Operator | Feb 2025 |
| 1473 | Planet Associates Inc | Denver, CO 80218 | Oil Operator | Dec 1994 |
| 1474 | Planet Energy, LLC | | Oil & Gas Operator | Dec 2015 |
| 1475 | Planet Operating, LLC | | Oil & Gas Operator | Dec 2024 |
| 1476 | Planet Resource Operating, LLC | | Oil & Gas Operator | Nov 2024 |
| 1477 | Planetierra Three Partnership | Sunray, TX 79086 | Oil & Gas Operator | Apr 2025 |
| 1478 | Plano Corp. | | Oil & Gas Operator | Mar 2005 |
| 1479 | Plano Petroleum | | Oil & Gas Operator | Dec 1994 |
| 1480 | Plano Petroleum Corporation | McKinney, TX 75070 | Oil & Gas Operator | Nov 2024 |
| 1481 | Plano Petroleum LLC | Plano, TX 75093-8773 | Oil & Gas Operator | Apr 2013 |
| 1482 | Plantation Oil Company | | Oil Operator | Dec 2006 |
| 1483 | Plantation Operating Co., Inc. | Holliday, TX 76366 | Oil & Gas Operator | Apr 2025 |
| 1484 | Plantation Operating, LLC | Houston, TX 77041 | Oil & Gas Operator | Nov 2011 |
| 1485 | Plants & Goodwin Inc | Bradford, PA 16701-3733 | Oil & Gas Operator | Dec 2018 |
| 1486 | Plateau Energy, LLC | Smyer, TX 79367 | Oil & Gas Operator | Dec 2023 |
| 1487 | Plateau Operating Corporation | Nashville, TN 37205 | Gas Operator | Dec 2024 |
| 1488 | Platform Operating, LLC | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 1489 | Platinum Exploration Inc. | Midland, TX 79701 | Oil & Gas Operator | Apr 2025 |
| 1490 | Platinum Gas Properties LLC | | Gas Operator | Feb 2025 |
| 1491 | Platinum Oil & Gas, L.L.C. | San Juan, TX 78589 | Oil & Gas Operator | Apr 2025 |
| 1492 | Platinum Oil Properties, LLC | Greenwood VIllage, CO 80111 | Oil & Gas Operator | Aug 2006 |
| 1493 | Platinum Properties Inc. | Wichita Falls, TX 76301 | Oil Operator | Aug 2003 |
| 1494 | Platt Oil Production | | Oil & Gas Operator | Jan 2007 |
| 1495 | Platte Valley Oi | | Oil Operator | Jul 1987 |
| 1496 | Platte Valley Oil Co., Inc. | Ralston, NE 68127 | Oil Operator | Dec 2024 |
| 1497 | Playa Minerals & Energy, Inc. | Houston, TX 77060 | Oil & Gas Operator | Nov 2003 |
| 1498 | Playa Oil & Gas, LP | | Oil & Gas Operator | Apr 2009 |
| 1499 | Pleasant Hill Oil Co | Carrollton, OH 44615 | Oil Operator | Dec 2006 |
| 1500 | Pledger Operating Co. Inc. | | Oil & Gas Operator | Dec 2024 |