| 1501 | Plo Inc | Amarillo, TX 79109-6222 | Gas Operator | Mar 2015 |
| 1502 | Plo'S Oil & Gas | Carrizo SPGS, TX 78834 | Oil & Gas Operator | Dec 2025 |
| 1503 | Plotner Oil Company | Oklahoma City, OK 73122 | Oil & Gas Operator | Nov 2025 |
| 1504 | Plotner Ralph Oil & Gas Inv Co | Oklahoma City, OK 73112 | Oil & Gas Operator | Nov 2021 |
| 1505 | Ploutos, LLC | | Oil Operator | May 2021 |
| 1506 | Plover Production Company | Fort Worth, TX 76109 | Oil & Gas Operator | Jul 2006 |
| 1507 | PLR Energy, LLC | Houston, TX 77079 | Oil Operator | May 2018 |
| 1508 | PLS Operating Co, Inc. | | Oil & Gas Operator | Jul 1989 |
| 1509 | Plug Nickel Oil Company Inc | | Oil & Gas Operator | Oct 2025 |
| 1510 | Plum Creek Energy, LLC | Ellinwood, KS 67526 | Oil & Gas Operator | Sep 2025 |
| 1511 | Plumb Operating Company, Inc. | | Oil & Gas Operator | Dec 1989 |
| 1512 | Plumb Resources, Inc. | Houston, TX 77096 | Oil & Gas Operator | Jun 1998 |
| 1513 | Plumley, M. C. & Associates | Borger, TX 79008 | Oil & Gas Operator | Dec 2025 |
| 1514 | Plummer Energy Inc | Pauls Valley, OK 73075-8663 | Oil & Gas Operator | Nov 2016 |
| 1515 | Plymouth Exploration LLC | Tulsa, OK 74119-1031 | Oil & Gas Operator | Nov 2025 |
| 1516 | Plymouth Resource Group LLC | | Oil & Gas Operator | Dec 1999 |
| 1517 | Plymouth Resource GRP 1998 LLC | | Oil & Gas Operator | Mar 2000 |
| 1518 | Plymouth Resources Group II Inc | | Oil & Gas Operator | May 2007 |
| 1519 | PM Oil & Gas, Inc. | San Angelo, TX 76903 | Oil Operator | Dec 2025 |
| 1520 | PMB Energy, Inc. | Snyder, TX 79549 | Oil & Gas Operator | Dec 2025 |
| 1521 | PMD Oil Recovery LLC | Perry, OK 73077 | Oil & Gas Operator | Nov 2025 |
| 1522 | Pmi Energy Co. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Aug 2002 |
| 1523 | PMJ, Inc. | Man, WV 25635-0000 | Gas Operator | Dec 2021 |
| 1524 | PML Operating LLC | | Oil Operator | Oct 2025 |
| 1525 | Pmo | Garland, TX 75040 | Oil & Gas Operator | Feb 2018 |
| 1526 | PMR Energy, LLC | San Antonio, TX 78209 | Oil Operator | Dec 2025 |
| 1527 | PN Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2003 |
| 1528 | PNB Petrol Haddad & Brooks Inc | Atlanta, GA 30305-1555 | Oil & Gas Operator | Dec 1989 |
| 1529 | PNG Gathering, LLC | Wellington, TX 79095 | Oil & Gas Operator | Dec 2024 |
| 1530 | PNG Operating Company | Oklahoma City, OK 73172 | Oil & Gas Operator | Dec 2025 |
| 1531 | PNG Production, LLC | Wellington, TX 79095 | Oil & Gas Operator | Dec 2025 |
| 1532 | PNL Operating, LLC | Casper, WY 82602 | Gas Operator | Dec 2022 |
| 1533 | PNP Operating Company LLC | San Antonio, TX 78230 | Oil Operator | Dec 2025 |
| 1534 | PO&G Operating, LLC (Pogo) | Houston, TX 77057 | Oil & Gas Operator | Nov 2025 |
| 1535 | Poblano Energy LLC | Houston, TX 77024-2217 | Oil & Gas Operator | Oct 2025 |
| 1536 | Pobres Incorporated | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 2008 |
| 1537 | Poc-I LLC | Casper, WY 82605 | Oil & Gas Operator | Nov 2025 |
| 1538 | Pocahontas Gas LLC | | Gas Operator | Dec 2021 |
| 1539 | Poco LLC | Houston, TX 77270 | Oil & Gas Operator | Dec 2025 |
| 1540 | Poco Oil Co. | Houston, TX 77069 | Oil & Gas Operator | Mar 1997 |
| 1541 | Poco Resources LLC | Artesia, NM 88210 | Oil & Gas Operator | Jul 2024 |
| 1542 | Poe Servicing Inc | Oberlin, KS 67749 | Oil Operator | Oct 2019 |
| 1543 | Poff, H. Bryan | Fort Worth, TX 76103 | Oil & Gas Operator | Mar 2008 |
| 1544 | Pogo Oil & Gas Operating, Inc | Hobbs, NM 88240 | Oil & Gas Operator | Dec 2019 |
| 1545 | Pogo Panhandle 2004, L.P. | Houston, TX 77002 | Oil & Gas Operator | Oct 2017 |
| 1546 | Pogo Producing Company | Houston, TX 77002 | Oil & Gas Operator | Jan 2008 |
| 1547 | Pogo Producing Company LLC | Houston, TX 77002 | Oil & Gas Operator | Nov 2025 |
| 1548 | Pogue Randall | Ada, OK 74821-1547 | Oil & Gas Operator | Apr 2014 |
| 1549 | Pogue, Randall R. | Ada, OK 74820 | Oil & Gas Operator | May 2003 |
| 1550 | Pohlman Oil LLC | Hays, KS 67601 | Oil Operator | Sep 2025 |
| 1551 | Point Energy Partners Petro, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2025 |
| 1552 | Pointe Coupee Energy, Inc | | Oil Operator | Dec 2013 |
| 1553 | Polaris Energy Dev Co | Tulsa, OK 74135 | Oil & Gas Operator | Apr 2000 |
| 1554 | Polaris Enterprises Inc | Houston, TX 77057 | Oil & Gas Operator | Oct 1998 |
| 1555 | Polaris Operating, LLC | Dallas, TX 75225 | Oil & Gas Operator | Dec 2025 |
| 1556 | Polaris Petroleum Operations LLC | Branson West, MO 65737 | Oil & Gas Operator | May 2019 |
| 1557 | Polaris Production Corp. | Midland, TX 79702 | Oil & Gas Operator | Jan 2024 |
| 1558 | Polaris Production Inc. | | Oil & Gas Operator | Feb 2021 |
| 1559 | Polaris Production Opco LLC | | Oil & Gas Operator | Oct 2025 |
| 1560 | Polaris-MRM Production Co. | | Oil Operator | Nov 1985 |
| 1561 | Pole Cat Oil Company | Sapulpa, OK 74067 | Oil Operator | Oct 2025 |
| 1562 | Polecat Pipeline Company, Inc. | Corpus Chrsti, TX 78401 | Gas Operator | May 1997 |
| 1563 | Polfam Exploration Co | Denver, CO 80204 | Oil & Gas Operator | Mar 2007 |
| 1564 | Poling Albert | Logan, OH 43138 | Oil Operator | Dec 2024 |
| 1565 | Polk Petroleum, Inc. | Abilene, TX 79604 | Oil & Gas Operator | May 2024 |
| 1566 | Pollard Jr G W | Okmulgee, OK 74447 | Oil & Gas Operator | Apr 2015 |
| 1567 | Pollard Operating, LLC | | Oil Operator | May 2001 |
| 1568 | Pollok Energy LLC | Tulsa, OK 74159 | Oil & Gas Operator | Nov 2025 |
| 1569 | Polo Operating Inc | Oklahoma City, OK 73112 | Oil & Gas Operator | May 2006 |
| 1570 | Polumbus Corporation | Denver, CO 80202 | Oil & Gas Operator | Sep 1982 |
| 1571 | Pomfret Production Co., Inc. | | Oil & Gas Operator | Feb 1987 |
| 1572 | Pominex Inc | Cols, OH 43214 | Oil & Gas Operator | Dec 1988 |
| 1573 | Pompano Resource Operator LLC | | Oil & Gas Operator | Oct 2025 |
| 1574 | Pomykal, Verde Oil Co | Brenham, TX 77833 | Oil & Gas Operator | Dec 2025 |
| 1575 | Poncho Production Co | | Oil & Gas Operator | Jan 2022 |
| 1576 | Pond David Well Service Inc Dba D W P Production | Perryton, TX 79070 | Gas Operator | Sep 2021 |
| 1577 | Ponder Oil Producers LLC | Okemah, OK 74859 | Oil & Gas Operator | Sep 2025 |
| 1578 | Pondera Partners Limited Partnership | Oroville, WA 98844 | Oil Operator | Sep 2023 |
| 1579 | Ponderosa Consulting Services Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2024 |
| 1580 | Ponderosa Oil & Gas, LLC | Houston, TX 77008 | Oil & Gas Operator | Dec 2025 |
| 1581 | Ponderosa Petroleum Corporation | Alto, NM 88312 | Oil & Gas Operator | Dec 2017 |
| 1582 | Ponderosa Petroleum, Inc. | Brownfield, TX 79316 | Oil & Gas Operator | Dec 2025 |
| 1583 | Ponderosa TX Operating LLC | Stinnett, TX 79083 | Oil & Gas Operator | Dec 2025 |
| 1584 | Ponderosa Witching, LLC | Waco, TX 76705 | Oil Operator | Sep 2025 |
| 1585 | Ponta E&P LLP | Houston, TX 77057 | Oil & Gas Operator | Dec 2025 |
| 1586 | Pontchartrain Oil & Gas Corp 2 | | Oil & Gas Operator | Dec 1984 |
| 1587 | Pontotoc Oil Corp. | Midland, TX 79702 | Oil & Gas Operator | Feb 1996 |
| 1588 | Pontotoc Operations Inc | Dallas, TX 75225-1425 | Oil & Gas Operator | Jun 2017 |
| 1589 | Pony Creek Operating LLC. | Flower Mound, TX 75028 | Oil Operator | Dec 2025 |
| 1590 | Pony Express Corporate Trust | Aledo, TX 76008 | Oil & Gas Operator | Dec 2025 |
| 1591 | Pony Oil Company | Borger, TX 79008 | Oil & Gas Operator | Jul 2001 |
| 1592 | Pool California Energy Services Inc. | | Oil Operator | Dec 2009 |
| 1593 | Pool Company | | Oil Operator | Dec 2002 |
| 1594 | Pool Operating Corporation | Lago VIsta, TX 78645 | Oil & Gas Operator | Oct 2016 |
| 1595 | Pool Production Services | | Oil Operator | Aug 1990 |
| 1596 | Pool, Lloyd Operating | Sandia Park, NM 87047 | Gas Operator | Dec 2013 |
| 1597 | Poor Boy Corporation | Ellinwood, KS 67526 | Oil Operator | Sep 2025 |
| 1598 | Poor Boy Operating Co. | Lubbock, TX 79403 | Oil Operator | Jan 2022 |
| 1599 | Poorboy Exploration LLC | Caldwell, OH 43724-9134 | Oil & Gas Operator | Dec 2024 |
| 1600 | Poorboy Oil Inc | Velma, OK 73491 | Oil & Gas Operator | Jul 2022 |