| 1601 | Pollok Energy LLC | Tulsa, OK 74159 | Oil & Gas Operator | Dec 2025 |
| 1602 | Polo Operating Inc | Oklahoma City, OK 73112 | Oil & Gas Operator | May 2006 |
| 1603 | Polumbus Corporation | Denver, CO 80202 | Oil & Gas Operator | Sep 1982 |
| 1604 | Pomfret Production Co., Inc. | | Oil & Gas Operator | Feb 1987 |
| 1605 | Pominex Inc | Cols, OH 43214 | Oil & Gas Operator | Dec 1988 |
| 1606 | Pompano Resource Operator LLC | | Oil & Gas Operator | Dec 2025 |
| 1607 | Pomykal, Verde Oil Co | Brenham, TX 77833 | Oil & Gas Operator | Feb 2026 |
| 1608 | Poncho Production Co | | Oil & Gas Operator | Jan 2022 |
| 1609 | Pond David Well Service Inc Dba D W P Production | Perryton, TX 79070 | Gas Operator | Sep 2021 |
| 1610 | Ponder Oil Producers LLC | Okemah, OK 74859 | Oil & Gas Operator | Sep 2025 |
| 1611 | Pondera Partners Limited Partnership | Oroville, WA 98844 | Oil Operator | Sep 2023 |
| 1612 | Ponderosa Consulting Services Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2024 |
| 1613 | Ponderosa Oil & Gas, LLC | Houston, TX 77008 | Oil & Gas Operator | Feb 2026 |
| 1614 | Ponderosa Petroleum Corporation | Alto, NM 88312 | Oil & Gas Operator | Dec 2017 |
| 1615 | Ponderosa Petroleum, Inc. | Brownfield, TX 79316 | Oil & Gas Operator | Feb 2026 |
| 1616 | Ponderosa TX Operating LLC | Stinnett, TX 79083 | Oil & Gas Operator | Feb 2026 |
| 1617 | Ponderosa Witching, LLC | Waco, TX 76705 | Oil Operator | Sep 2025 |
| 1618 | Ponta E&P LLP | Houston, TX 77057 | Oil & Gas Operator | Feb 2026 |
| 1619 | Pontchartrain Oil & Gas Corp 2 | | Oil & Gas Operator | Dec 1984 |
| 1620 | Pontotoc Oil Corp. | Midland, TX 79702 | Oil & Gas Operator | Feb 1996 |
| 1621 | Pontotoc Operations Inc | Dallas, TX 75225-1425 | Oil & Gas Operator | Jun 2017 |
| 1622 | Pony Creek Operating LLC. | Flower Mound, TX 75028 | Oil Operator | Feb 2026 |
| 1623 | Pony Express Corporate Trust | Aledo, TX 76008 | Oil & Gas Operator | Feb 2026 |
| 1624 | Pony Oil Company | Borger, TX 79008 | Oil & Gas Operator | Jul 2001 |
| 1625 | Pool California Energy Services Inc. | | Oil Operator | Dec 2009 |
| 1626 | Pool Company | | Oil Operator | Dec 2002 |
| 1627 | Pool Operating Corporation | Lago VIsta, TX 78645 | Oil & Gas Operator | Oct 2016 |
| 1628 | Pool Production Services | | Oil Operator | Aug 1990 |
| 1629 | Pool, Lloyd Operating | Sandia Park, NM 87047 | Gas Operator | Dec 2013 |
| 1630 | Poor Boy Corporation | Ellinwood, KS 67526 | Oil Operator | Sep 2025 |
| 1631 | Poor Boy Operating Co. | Lubbock, TX 79403 | Oil Operator | Jan 2022 |
| 1632 | Poorboy Exploration LLC | Caldwell, OH 43724-9134 | Oil & Gas Operator | Dec 2024 |
| 1633 | Poorboy Oil Inc | Velma, OK 73491 | Oil & Gas Operator | Jul 2022 |
| 1634 | Pop Operating Company | Denton, TX 76202 | Oil & Gas Operator | Feb 2026 |
| 1635 | Pope Charles Edward | Morris, OK 74445 | Oil & Gas Operator | Mar 2023 |
| 1636 | Pope Oil LLC | Morris, OK 74445 | Oil Operator | Nov 2025 |
| 1637 | Pope Ted & Karen Dba MP Operating | Bristow, OK 74010 | Oil Operator | Dec 2025 |
| 1638 | Pope, W. E., Estate Of | Fort Worth, TX 76113 | Gas Operator | Jan 1994 |
| 1639 | Popp Operating, Inc. | Hoisington, KS 67544 | Oil Operator | Sep 2025 |
| 1640 | Porebski, Adam R. | Gerry, NY 14740 | Gas Operator | Dec 2024 |
| 1641 | Porosity Oil LLC | Imperial, TX 79743 | Oil Operator | Feb 2026 |
| 1642 | Port Erie Plastics Inc | Harborcreek, PA 16421-1018 | Gas Operator | Dec 2025 |
| 1643 | Port Hudson Operating Company | | Oil & Gas Operator | Nov 2024 |
| 1644 | Portage Exploration Co In | Salem, IL 62881 | Oil & Gas Operator | Dec 2004 |
| 1645 | Portage Resources Inc | Warren, OH 44484 | Oil & Gas Operator | Dec 2015 |
| 1646 | Portal Energy Corporation | Dallas, TX 75201 | Oil & Gas Operator | Mar 1993 |
| 1647 | Portals Woodward Joint Venture | | Oil Operator | Dec 2000 |
| 1648 | Portana Properties LLC | McKinney, TX 75072 | Oil Operator | Feb 2026 |
| 1649 | Porter Brothers | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1995 |
| 1650 | Porter Gas Inc | Ligonier, PA 15658-0521 | Oil & Gas Operator | Dec 2011 |
| 1651 | Porter John B | Ketchum, OK 74349-0207 | Oil & Gas Operator | May 2000 |
| 1652 | Porter John E "Gene" | Cushing, OK 74023 | Oil & Gas Operator | Aug 2000 |
| 1653 | Porter Oil | Peabody, KS 66866 | Oil Operator | Oct 2000 |
| 1654 | Porter Oil And Gas Inc | Fort Smith, AR 72903-6906 | Oil & Gas Operator | Nov 2025 |
| 1655 | Porter Operating Company, L.L.C. | Pampa, TX 79066 | Oil & Gas Operator | Feb 2026 |
| 1656 | Porter Petroleum | Hopewell, OH 43746 | Oil & Gas Operator | Dec 2021 |
| 1657 | Porter Petroleum Of Seo LLC | Hopewell, OH 43746 | Oil Operator | Dec 2024 |
| 1658 | Porter Sesnon Et Al | | Oil & Gas Operator | Dec 1978 |
| 1659 | Porter Tom & John | Boynton, OK 74422 | Oil & Gas Operator | Oct 2025 |
| 1660 | Porter, E. J. | Mingus, TX 76463 | Gas Operator | Jan 2011 |
| 1661 | Porter, James W. | Houston, TX 77240 | Oil & Gas Operator | Oct 1993 |
| 1662 | Porter, James W. Special | Blanco, TX 78606 | Oil & Gas Operator | Feb 2026 |
| 1663 | Portfolio Oil Corporation | Oklahoma City, OK 73119 | Oil & Gas Operator | May 2013 |
| 1664 | Portman Acres | Butler, PA 16002-9107 | Gas Operator | Dec 2025 |
| 1665 | Portsmouth Resources, Inc. | Houston, TX 77079 | Oil & Gas Operator | Jul 1993 |
| 1666 | Positive Energy LLC | Ada, OK 74820 | Oil & Gas Operator | Dec 2025 |
| 1667 | Poso Creek Energy LLC | | Oil & Gas Operator | Dec 2009 |
| 1668 | Post & Mastin Well Service, Inc. | Garden City, KS 67846 | Oil Operator | May 2016 |
| 1669 | Post Hole Drilling Company, LLC | | Oil & Gas Operator | Nov 2023 |
| 1670 | Post Oak Oil Company | Oklahoma City, OK 73112 | Oil & Gas Operator | Jul 2013 |
| 1671 | Post Oak Operating, LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 2026 |
| 1672 | Post Oak Production Corp. | | Oil & Gas Operator | Feb 1991 |
| 1673 | Post Petroleum C | | Gas Operator | Nov 1991 |
| 1674 | Post Petroleum Company | Oklahoma City, OK 73116 | Oil & Gas Operator | Aug 2013 |
| 1675 | Post Rock Gas, Inc. | Luray, KS 67699 | Oil & Gas Operator | Jun 2003 |
| 1676 | Post, George P. | Oklahoma City, OK 73118 | Oil & Gas Operator | Feb 2026 |
| 1677 | Poston Operating Co Inc | Ashley, OH 43003 | Oil & Gas Operator | Dec 2003 |
| 1678 | Poston'S Oil Co. | | Gas Operator | Jan 1993 |
| 1679 | Postrock Eastern Production LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Oct 2020 |
| 1680 | Postrock Midcontinent Production LLC | Oklahoma City, OK 73101 | Oil & Gas Operator | Nov 2025 |
| 1681 | Potato Creek, L.L.C. | Edna, KS 67342 | Oil & Gas Operator | Sep 2025 |
| 1682 | Poteet Operating Co. | Wichita Falls, TX 76307 | Oil & Gas Operator | Aug 1994 |
| 1683 | Potlatch Oil & Refining Co | Shelby, MT 59474 | Oil & Gas Operator | Nov 2025 |
| 1684 | Potter Hammill & Potter Inc. | Beggs, OK 74421-0038 | Oil Operator | Aug 2013 |
| 1685 | Potter J And D Oil LLC | Kingfisher, OK 73750-3832 | Oil & Gas Operator | Mar 2015 |
| 1686 | Potter McKean Resources Inc | Shinglehouse, PA 16748-0527 | Gas Operator | Dec 2003 |
| 1687 | Potter McKean Resources Of Pa | Shinglehouse, PA 16748-2631 | Gas Operator | Dec 2007 |
| 1688 | Potter Tom Estate | | Oil Operator | Dec 2014 |
| 1689 | Pottmeyer David | Fleming, OH 43729 | Oil & Gas Operator | Dec 2024 |
| 1690 | Potts Exploration LLC | Oklahoma City, OK 73114 | Gas Operator | Jan 2016 |
| 1691 | Pound Robert M | Bristow, OK 74010 | Oil & Gas Operator | Sep 2014 |
| 1692 | Poverty Knob Production, LLC | Osawatomie, KS 66064 | Oil Operator | Sep 2025 |
| 1693 | Powco Oil & Gas Co. | Athens, TX 75751 | Oil & Gas Operator | Feb 1995 |
| 1694 | Powder Battalion Holdings LLC | Sheridan, WY 82801 | Gas Operator | Dec 2023 |
| 1695 | Powder Mill Gas Co | New Bethlehem, PA 16242-2252 | Oil & Gas Operator | Dec 2025 |
| 1696 | Powder River Oil | Golden, CO 80401 | Oil & Gas Operator | Sep 2018 |
| 1697 | Powder River Petroleum | Boerne, TX 78006 | Oil & Gas Operator | Dec 1998 |
| 1698 | Powder River Resources, LLC | Archer City, TX 76351 | Oil & Gas Operator | Feb 2026 |
| 1699 | Powder River Royalty Inc | | Oil & Gas Operator | Dec 1986 |
| 1700 | Powell & Brown | Denver City, TX 79323 | Oil & Gas Operator | Mar 2008 |