| 1501 | Plymouth Resources Group II Inc | | Oil & Gas Operator | May 2007 |
| 1502 | PM Oil & Gas, Inc. | San Angelo, TX 76903 | Oil Operator | Jun 2025 |
| 1503 | PMB Energy, Inc. | Snyder, TX 79549 | Oil & Gas Operator | Jun 2025 |
| 1504 | PMD Oil Recovery LLC | Oklahoma City, OK 73129 | Oil & Gas Operator | Feb 2025 |
| 1505 | Pmi Energy Co. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Aug 2002 |
| 1506 | PMJ, Inc. | Man, WV 25635-0000 | Gas Operator | Dec 2021 |
| 1507 | PML Operating LLC | | Oil Operator | Apr 2025 |
| 1508 | Pmo | Garland, TX 75040 | Oil & Gas Operator | Feb 2018 |
| 1509 | PMR Energy, LLC | San Antonio, TX 78209 | Oil Operator | Jun 2025 |
| 1510 | PN Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2003 |
| 1511 | PNB Petrol Haddad & Brooks Inc | Atlanta, GA 30305-1555 | Oil & Gas Operator | Dec 1989 |
| 1512 | PNG Gathering, LLC | Wellington, TX 79095 | Oil & Gas Operator | Jun 2025 |
| 1513 | PNG Operating Company | Oklahoma City, OK 73172 | Oil & Gas Operator | Jun 2025 |
| 1514 | PNG Production, LLC | Wellington, TX 79095 | Oil & Gas Operator | Jun 2025 |
| 1515 | PNL Operating, LLC | Casper, WY 82602 | Gas Operator | Dec 2022 |
| 1516 | PNP Operating Company LLC | San Antonio, TX 78230 | Oil Operator | Jun 2025 |
| 1517 | PO&G Operating, LLC (Pogo) | Houston, TX 77057 | Oil & Gas Operator | Apr 2025 |
| 1518 | Poblano Energy LLC | Houston, TX 77024-2217 | Oil & Gas Operator | Feb 2025 |
| 1519 | Pobres Incorporated | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 2008 |
| 1520 | Poc-I LLC | Casper, WY 82605 | Oil & Gas Operator | Apr 2025 |
| 1521 | Pocahontas Gas LLC | | Gas Operator | Dec 2021 |
| 1522 | Poco LLC | Houston, TX 77270 | Oil & Gas Operator | Jun 2025 |
| 1523 | Poco Oil Co. | Houston, TX 77069 | Oil & Gas Operator | Mar 1997 |
| 1524 | Poco Resources LLC | Artesia, NM 88210 | Oil & Gas Operator | Jul 2024 |
| 1525 | Poe Servicing Inc | Oberlin, KS 67749 | Oil Operator | Oct 2019 |
| 1526 | Poff, H. Bryan | Fort Worth, TX 76103 | Oil & Gas Operator | Mar 2008 |
| 1527 | Pogo Oil & Gas Operating, Inc | Hobbs, NM 88240 | Oil & Gas Operator | Dec 2019 |
| 1528 | Pogo Panhandle 2004, L.P. | Houston, TX 77002 | Oil & Gas Operator | Oct 2017 |
| 1529 | Pogo Producing Company | Houston, TX 77002 | Oil & Gas Operator | Jan 2008 |
| 1530 | Pogo Producing Company LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2025 |
| 1531 | Pogue Randall | Ada, OK 74821-1547 | Oil & Gas Operator | Apr 2014 |
| 1532 | Pogue, Randall R. | Ada, OK 74820 | Oil & Gas Operator | May 2003 |
| 1533 | Pohlman Oil LLC | Hays, KS 67601 | Oil Operator | Jan 2025 |
| 1534 | Point Energy Partners Petro, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2025 |
| 1535 | Pointe Coupee Energy, Inc | | Oil Operator | Dec 2013 |
| 1536 | Polaris Energy Dev Co | Tulsa, OK 74135 | Oil & Gas Operator | Apr 2000 |
| 1537 | Polaris Enterprises Inc | Houston, TX 77057 | Oil & Gas Operator | Oct 1998 |
| 1538 | Polaris Operating, LLC | Dallas, TX 75225 | Oil & Gas Operator | Jun 2025 |
| 1539 | Polaris Petroleum Operations LLC | Branson West, MO 65737 | Oil & Gas Operator | May 2019 |
| 1540 | Polaris Production Corp. | Midland, TX 79702 | Oil & Gas Operator | Jan 2024 |
| 1541 | Polaris Production Inc. | | Oil & Gas Operator | Feb 2021 |
| 1542 | Polaris Production Opco LLC | | Oil & Gas Operator | Mar 2025 |
| 1543 | Polaris-MRM Production Co. | | Oil Operator | Nov 1985 |
| 1544 | Pole Cat Oil Company | Sapulpa, OK 74067 | Oil Operator | Feb 2025 |
| 1545 | Polecat Pipeline Company, Inc. | Corpus Chrsti, TX 78401 | Gas Operator | May 1997 |
| 1546 | Polfam Exploration Co | Denver, CO 80204 | Oil & Gas Operator | Mar 2007 |
| 1547 | Poling Albert | Logan, OH 43138 | Oil Operator | Dec 2024 |
| 1548 | Polk Petroleum, Inc. | Abilene, TX 79604 | Oil & Gas Operator | May 2024 |
| 1549 | Pollard Jr G W | Okmulgee, OK 74447 | Oil & Gas Operator | Apr 2015 |
| 1550 | Pollard Operating, LLC | | Oil Operator | May 2001 |
| 1551 | Pollok Energy LLC | Tulsa, OK 74159 | Oil & Gas Operator | Mar 2025 |
| 1552 | Polo Operating Inc | Oklahoma City, OK 73112 | Oil & Gas Operator | May 2006 |
| 1553 | Polumbus Corporation | Denver, CO 80202 | Oil & Gas Operator | Sep 1982 |
| 1554 | Pomfret Production Co., Inc. | | Oil & Gas Operator | Feb 1987 |
| 1555 | Pominex Inc | Cols, OH 43214 | Oil & Gas Operator | Dec 1988 |
| 1556 | Pompano Resource Operator LLC | | Oil & Gas Operator | Feb 2025 |
| 1557 | Pomykal, Verde Oil Co | Brenham, TX 77833 | Oil & Gas Operator | Jun 2025 |
| 1558 | Poncho Production Co | | Oil & Gas Operator | Jan 2022 |
| 1559 | Ponder Oil Producers LLC | Okemah, OK 74859 | Oil & Gas Operator | Nov 2024 |
| 1560 | Pondera Partners Limited Partnership | Oroville, WA 98844 | Oil Operator | Sep 2023 |
| 1561 | Ponderosa Consulting Services Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2023 |
| 1562 | Ponderosa Oil & Gas, LLC | Houston, TX 77008 | Oil & Gas Operator | Jun 2025 |
| 1563 | Ponderosa Petroleum Corporation | Alto, NM 88312 | Oil & Gas Operator | Dec 2017 |
| 1564 | Ponderosa Petroleum, Inc. | Brownfield, TX 79316 | Oil & Gas Operator | Jun 2025 |
| 1565 | Ponderosa TX Operating LLC | Stinnett, TX 79083 | Oil & Gas Operator | Jun 2025 |
| 1566 | Ponderosa Witching, LLC | Waco, TX 76705 | Oil Operator | Feb 2025 |
| 1567 | Ponta E&P LLP | Houston, TX 77057 | Oil & Gas Operator | Jun 2025 |
| 1568 | Pontchartrain Oil & Gas Corp 2 | | Oil & Gas Operator | Dec 1984 |
| 1569 | Pontotoc Oil Corp. | Midland, TX 79702 | Oil & Gas Operator | Feb 1996 |
| 1570 | Pontotoc Operations Inc | Dallas, TX 75225-1425 | Oil & Gas Operator | Jun 2017 |
| 1571 | Pony Creek Operating LLC. | Flower Mound, TX 75028 | Oil Operator | Jun 2025 |
| 1572 | Pony Express Corporate Trust | Aledo, TX 76008 | Oil & Gas Operator | Jun 2025 |
| 1573 | Pony Oil Company | Borger, TX 79008 | Oil & Gas Operator | Jul 2001 |
| 1574 | Pool California Energy Services Inc. | | Oil Operator | Dec 2009 |
| 1575 | Pool Company | | Oil Operator | Dec 2002 |
| 1576 | Pool Operating Corporation | Lago VIsta, TX 78645 | Oil & Gas Operator | Oct 2016 |
| 1577 | Pool Production Services | | Oil Operator | Aug 1990 |
| 1578 | Pool, Lloyd Operating | Sandia Park, NM 87047 | Gas Operator | Dec 2013 |
| 1579 | Poor Boy Corporation | Ellinwood, KS 67526 | Oil Operator | Feb 2025 |
| 1580 | Poor Boy Operating Co. | Lubbock, TX 79403 | Oil Operator | Jan 2022 |
| 1581 | Poorboy Exploration LLC | Caldwell, OH 43724-9134-9134 | Oil & Gas Operator | Dec 2024 |
| 1582 | Poorboy Oil Inc | Velma, OK 73491 | Oil & Gas Operator | Jul 2022 |
| 1583 | Pop Operating Company | Denton, TX 76202 | Oil & Gas Operator | Jun 2025 |
| 1584 | Pope Charles Edward | Morris, OK 74445 | Oil & Gas Operator | Mar 2023 |
| 1585 | Pope Oil LLC | Morris, OK 74445 | Oil Operator | Feb 2025 |
| 1586 | Pope Ted & Karen Dba MP Operating | Bristow, OK 74010 | Oil Operator | Mar 2025 |
| 1587 | Popp Operating, Inc. | Hoisington, KS 67544 | Oil Operator | Feb 2025 |
| 1588 | Porebski, Adam R. | Gerry, NY 14740 | Gas Operator | Dec 2023 |
| 1589 | Porosity Oil LLC | Imperial, TX 79743 | Oil Operator | Jun 2025 |
| 1590 | Port Erie Plastics Inc | Harborcreek, PA 16421-1018 | Gas Operator | Dec 2024 |
| 1591 | Port Hudson Operating Company | | Oil & Gas Operator | Nov 2024 |
| 1592 | Portage Exploration Co In | Salem, IL 62881 | Oil & Gas Operator | Dec 2004 |
| 1593 | Portage Resources Inc | Warren, OH 44484 | Oil & Gas Operator | Dec 2015 |
| 1594 | Portal Energy Corporation | Dallas, TX 75201 | Oil & Gas Operator | Mar 1993 |
| 1595 | Portals Woodward Joint Venture | | Oil Operator | Dec 2000 |
| 1596 | Portana Properties LLC | McKinney, TX 75072 | Oil Operator | Jun 2025 |
| 1597 | Porter Brothers | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1995 |
| 1598 | Porter John B | Ketchum, OK 74349-0207 | Oil & Gas Operator | May 2000 |
| 1599 | Porter John E "Gene" | Cushing, OK 74023 | Oil & Gas Operator | Aug 2000 |
| 1600 | Porter Oil | Peabody, KS 66866 | Oil Operator | Oct 2000 |