| 1401 | Pinnacle Exploration Inc | Edmond, OK 73003 | Oil & Gas Operator | Mar 2024 |
| 1402 | Pinnacle Gas Resources, Inc. | Sheridan, WY 82801 | Gas Operator | Mar 2011 |
| 1403 | Pinnacle Mining Company, LLC | | Oil & Gas Operator | Dec 2017 |
| 1404 | Pinnacle Mining Corporation | Midland, TX 79708 | Oil & Gas Operator | Feb 2026 |
| 1405 | Pinnacle Operating Company LLC | Tulsa, OK 74137 | Oil & Gas Operator | Nov 2025 |
| 1406 | Pinnacle Operating Company, Inc. | Shreveport, LA 71135 | Oil & Gas Operator | Feb 2026 |
| 1407 | Pinon Corporation | San Antonio, TX 78266 | Oil & Gas Operator | Jul 2001 |
| 1408 | Pinon Operating, LLC | Midland, TX 79702 | Oil & Gas Operator | Sep 2023 |
| 1409 | Pinon Petroleum, Inc. | San Angelo, TX 76903 | Oil & Gas Operator | Apr 2004 |
| 1410 | Pintail Minerals Corp. | | Gas Operator | Jun 1992 |
| 1411 | Pintail Oil & Gas, LLC | Midland, TX 79702 | Oil & Gas Operator | Dec 2019 |
| 1412 | Pintail Petroleu | | Oil & Gas Operator | Dec 1995 |
| 1413 | Pintail Petroleum | | Oil & Gas Operator | Oct 1993 |
| 1414 | Pintail Petroleum Inc. | Wichita, KS 67202 | Oil & Gas Operator | Jun 2010 |
| 1415 | Pintail Petroleum, LTD. | Wichita, KS 67202 | Oil & Gas Operator | Apr 2021 |
| 1416 | Pintail Production Co., Inc. | Fort Worth, TX 76132 | Oil & Gas Operator | Feb 2026 |
| 1417 | Pintex Operating Inc. | Corpus Chrsti, TX 78478 | Oil & Gas Operator | Feb 2005 |
| 1418 | Pinto Petroleum | Wichita, KS 67211 | Oil Operator | Nov 2001 |
| 1419 | Pinzok, Michael & Linda | Ripley, NY 14775 | Gas Operator | Dec 2024 |
| 1420 | Pioneer Drilling Co | Payne, OH 45880 | Oil & Gas Operator | Dec 1993 |
| 1421 | Pioneer Energy Corporation | Dallas, TX 75204 | Oil & Gas Operator | Feb 2026 |
| 1422 | Pioneer Exploration Company | Houston, TX 77090 | Oil & Gas Operator | Dec 2025 |
| 1423 | Pioneer Exploration, LLC | Houston, TX 77090 | Oil & Gas Operator | Dec 2025 |
| 1424 | Pioneer Exploration, LTD. | Houston, TX 77090 | Oil & Gas Operator | Sep 2008 |
| 1425 | Pioneer Feedyard, LLC | Oakley, KS 67748 | Oil Operator | Sep 2025 |
| 1426 | Pioneer Gas Pipeline, Inc. | San Angelo, TX 76903 | Oil & Gas Operator | Feb 2026 |
| 1427 | Pioneer Natural Res. (GPC), Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 1998 |
| 1428 | Pioneer Natural Res. USA, Inc. | Spring, TX 77389 | Oil & Gas Operator | Feb 2026 |
| 1429 | Pioneer Natural Resources Alaska Inc. | | Oil & Gas Operator | Jul 2014 |
| 1430 | Pioneer Natural Resources USA Inc | Irving, TX 75039 | Oil & Gas Operator | Sep 2025 |
| 1431 | Pioneer Of Oklahoma LP | Houston, TX 77090-3655 | Oil & Gas Operator | May 2025 |
| 1432 | Pioneer Oil & Gas | South Jordan, UT 84095 | Oil & Gas Operator | Jan 2014 |
| 1433 | Pioneer Oil Company, Inc. | Vincennes, IN 47501 | Oil & Gas Operator | Sep 2025 |
| 1434 | Pioneer Operatio | | Oil & Gas Operator | Mar 1986 |
| 1435 | Pioneer Operations, LLC | Hays, KS 67601 | Oil Operator | Sep 2025 |
| 1436 | Pioneer Prod. Corp. | | Oil & Gas Operator | Jun 1986 |
| 1437 | Pioneer Production Corp-Huggs | | Oil & Gas Operator | Jun 1986 |
| 1438 | Pioneer Prospect LLP | Sioux Falls, SD 57108 | Gas Operator | Dec 2023 |
| 1439 | Pioneer Resources | Jefferson, CO 80456 | Oil Operator | Dec 2009 |
| 1440 | Pioneer Resources Inc | Phillipsburg, KS 67661 | Oil & Gas Operator | Oct 2020 |
| 1441 | Pioneer Resources Prod LP | Irving, TX 75039-3745 | Oil & Gas Operator | Feb 2005 |
| 1442 | Pioneer Resources Producing, L.P | Irving, TX 75039 | Oil & Gas Operator | Feb 2001 |
| 1443 | Pioneer Trucking, LLC | | Oil Operator | Jan 2026 |
| 1444 | Pipeline Holdings, Inc | | Gas Operator | Dec 2012 |
| 1445 | Pipeline Management, Inc. | Lubbock, TX 79401 | Oil & Gas Operator | Dec 2002 |
| 1446 | Pipeline Oil & Gas, LLC | Phoenix, AZ 85016 | Oil Operator | Feb 2014 |
| 1447 | Pipeline Resources, Inc. | Corpus Chrsti, TX 78412 | Gas Operator | Aug 2003 |
| 1448 | Piper Operating LLC | Stigler, OK 74462 | Oil & Gas Operator | Nov 2025 |
| 1449 | Pipes Pursie E | MT Vernon, IL 62864 | Oil & Gas Operator | Dec 2014 |
| 1450 | Piqua Petro, Inc. | Piqua, KS 66761 | Oil Operator | Sep 2025 |
| 1451 | Piqua Petroleum | | Oil Operator | Dec 1996 |
| 1452 | Pistol Ridge Partners, LLC | | Oil & Gas Operator | Nov 2025 |
| 1453 | Pita Oil & Gas, LLC | | Oil Operator | Jul 2004 |
| 1454 | Pitchfork Investments, LLC | Amarillo, TX 79109 | Oil & Gas Operator | Feb 2026 |
| 1455 | Pitchfork Oil & Gas, Inc. | Orchard, TX 77464 | Oil & Gas Operator | Feb 2026 |
| 1456 | Pitco Investments, LTD. | Scottsdale, AZ 85261 | Oil & Gas Operator | Jan 2013 |
| 1457 | Pitco Production Company | Tulsa, OK 74170-2320 | Oil & Gas Operator | May 2013 |
| 1458 | Pitcock, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 1459 | Pitman Creek, Inc. | Burlington, IA 52601 | Oil Operator | Dec 1992 |
| 1460 | Pitman John | | Oil & Gas Operator | Jan 1992 |
| 1461 | Pitman, John D. | Oklahoma City, OK 73120 | Gas Operator | Dec 2003 |
| 1462 | Pitman, John Douglas Revocable Trust | Oklahoma City, OK 73118 | Oil Operator | Dec 2019 |
| 1463 | Pitman, John Estate (Deceased) | Oklahoma City, OK 73104 | Oil Operator | May 2000 |
| 1464 | Pittencrieff (Gulf Coast), Inc. | Abilene, TX 79608 | Oil & Gas Operator | Sep 1998 |
| 1465 | Pittencrieff America Inc | Abilene, TX 79608 | Oil & Gas Operator | Feb 2003 |
| 1466 | Pittman Kenneth | | Oil Operator | Mar 1995 |
| 1467 | Pittman, Joe N. | | Oil & Gas Operator | Apr 1985 |
| 1468 | Pittman-Allen Operating LLC | Oklahoma City, OK 73122-1105 | Gas Operator | Feb 2016 |
| 1469 | Pitts Energy Co. | Midland, TX 79707 | Oil & Gas Operator | Feb 2026 |
| 1470 | Pitts Oil Co-Dallas Prod Inc | | Oil & Gas Operator | Jun 1991 |
| 1471 | Pitts, Charles Company | Abilene, TX 79604 | Oil & Gas Operator | Dec 1997 |
| 1472 | Pitts, W. C. | | Oil Operator | Jan 1988 |
| 1473 | Pivonka Investments LLC | | Oil & Gas Operator | Dec 2025 |
| 1474 | Pixley Carlis D | Marlow, OK 73055 | Oil & Gas Operator | Sep 1999 |
| 1475 | Pizzi, Ricardo A. | Attica, NY 14011 | Gas Operator | Dec 2024 |
| 1476 | PK Gath & Oilfield SVCS, Inc. | Cleburne, TX 76031 | Oil & Gas Operator | Feb 2026 |
| 1477 | PK Petroleum LLC | Pampa, TX 79065 | Oil & Gas Operator | Feb 2026 |
| 1478 | PKS Energy Savers Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Jul 1994 |
| 1479 | Place Oil And Gas Co. | Eastland, TX 76448 | Oil & Gas Operator | Feb 2026 |
| 1480 | Place, Steve | El Dorado, KS 67042 | Oil Operator | Dec 2019 |
| 1481 | Placer Oil Co. | Sugar Land, TX 77479 | Oil & Gas Operator | Apr 2008 |
| 1482 | Placid Oil Co., Et Al | | Oil & Gas Operator | Jun 1983 |
| 1483 | Placid Oil Company | Houston, TX 77227 | Oil & Gas Operator | Mar 2008 |
| 1484 | Placid Operating, LLC | Dallas, TX 75230 | Oil & Gas Operator | Jul 2021 |
| 1485 | Plains Exploration & Prod. Co. | Houston, TX 77002 | Oil & Gas Operator | Jul 2013 |
| 1486 | Plains Marketing, LP | Cushing, OK 74023 | Oil Operator | Jan 2012 |
| 1487 | Plains Oil & Gas | Cushing, OK 74023-4819 | Oil & Gas Operator | Jan 2019 |
| 1488 | Plains Oil Compa | | Oil & Gas Operator | Aug 1988 |
| 1489 | Plains Petroleum | | Gas Operator | Dec 1996 |
| 1490 | Plains Petroleum Operating Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2014 |
| 1491 | Plains Production Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1995 |
| 1492 | Plains Radio Pet Co | Midland, TX 79703 | Oil & Gas Operator | Apr 2023 |
| 1493 | Plains Resources Inc. | Houston, TX 77002 | Oil & Gas Operator | Jul 2008 |
| 1494 | Plainsco, LTD. | Denver, CO 80203 | Oil & Gas Operator | Jan 2002 |
| 1495 | Plainsman Energy Inc | Enid, OK 73702 | Oil & Gas Operator | Oct 2019 |
| 1496 | Plainsmen Energy LLC | Enid, OK 73703-5747 | Oil & Gas Operator | Dec 2025 |
| 1497 | Planet Associates Inc | Denver, CO 80218 | Oil Operator | Dec 1994 |
| 1498 | Planet Energy, LLC | | Oil & Gas Operator | Dec 2015 |
| 1499 | Planet Operating, LLC | | Oil & Gas Operator | Dec 2024 |
| 1500 | Planet Resource Operating, LLC | | Oil & Gas Operator | Nov 2024 |