| 20801 | Nairn, Robert | Elkhart, KS 67950 | Gas Operator | Apr 2011 |
| 20802 | Nall Oil & Gas | Mineral Wells, TX 76067 | Oil & Gas Operator | Feb 2026 |
| 20803 | Nally, Joseph L | Uniontown, KY 42461 | Oil & Gas Operator | Dec 2021 |
| 20804 | Nami Resources Company, LLC | | Oil & Gas Operator | Dec 2023 |
| 20805 | Nana Oil & Gas Inc. | | Oil & Gas Operator | Jan 2018 |
| 20806 | Nance Engineering Inc. | Houston, TX 77058 | Oil & Gas Operator | Mar 2002 |
| 20807 | Nance Petroleum Corporation | Billings, MT 59103-7168 | Oil & Gas Operator | Nov 2007 |
| 20808 | Nanco Resources, LLC | | Gas Operator | Dec 2021 |
| 20809 | Nancy Oil & Gas Corp | Tulsa, OK 74101 | Oil Operator | Apr 2020 |
| 20810 | Nancy Wilcox E Qualls | Farmington, NM 87410 | Gas Operator | May 2017 |
| 20811 | Nanke Energy LLC | Westminster, CO 80234 | Oil & Gas Operator | Oct 2025 |
| 20812 | Narbo Farms, LTD. | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 20813 | Nard Inc | Buffalo, OK 73834-9737 | Oil Operator | Dec 2005 |
| 20814 | Naro Oil Corporation | Dallas, TX 75230-1986 | Oil & Gas Operator | Nov 2003 |
| 20815 | Nasco Petroleum L.L.C. | | Oil & Gas Operator | Dec 2025 |
| 20816 | Nash Oil & Gas, Inc. | Newton, KS 67114 | Oil & Gas Operator | Sep 2025 |
| 20817 | Nashville Associates Inc | | Oil & Gas Operator | Dec 2003 |
| 20818 | Nassau Resources Inc | Denver, CO 80222 | Oil & Gas Operator | Mar 2000 |
| 20819 | Nasser Oil & Gas, Inc. | The Woodlands, TX 77380 | Oil & Gas Operator | Apr 1998 |
| 20820 | Nat. Gas Pipeline Co Of Amer. | | Oil Operator | Dec 2008 |
| 20821 | Nataraja Oil Corporation | Foley, AL 36535 | Oil Operator | Aug 2010 |
| 20822 | Natchez Operating, LLC | | Oil & Gas Operator | Nov 2023 |
| 20823 | Natchez Pipe & Equip. Co., Inc | | Oil Operator | Nov 1981 |
| 20824 | Nathan C. Hale | | Oil & Gas Operator | Jan 2025 |
| 20825 | Nathan Hale Oil Co. | | Oil & Gas Operator | Jan 2025 |
| 20826 | Nathan Petroleum Corp., Yahn & Yahn Inc | Rexville, NY 14877 | Oil & Gas Operator | Dec 2024 |
| 20827 | Nathan Petroleum Corporation | Rexville, NY 14877 | Oil & Gas Operator | Dec 2024 |
| 20828 | National Coopera | | Oil & Gas Operator | Mar 1992 |
| 20829 | National Cooperative Refinery Assoc. | Great Bend, KS 67530 | Oil & Gas Operator | Feb 2023 |
| 20830 | National Cooperative RFG Assoc | McPherson, KS 67460-1404 | Oil & Gas Operator | Oct 2025 |
| 20831 | National Crude O | | Oil & Gas Operator | Jun 1991 |
| 20832 | National Develop | | Oil & Gas Operator | Jan 1990 |
| 20833 | National Energy Exp Inc | Newark, OH 43055 | Oil & Gas Operator | Dec 2024 |
| 20834 | National Energy Group Inc | Dallas, TX 75206 | Oil & Gas Operator | Sep 2014 |
| 20835 | National Exploration Company | | Oil & Gas Operator | Mar 1982 |
| 20836 | National Fuel Corporation | Greenwood VIllage, CO 80111 | Oil & Gas Operator | Dec 2025 |
| 20837 | National Fuel Gas Supply Corporation | | Gas Operator | Dec 2010 |
| 20838 | National Investors Group | Warren, OH 44481 | Oil & Gas Operator | Nov 1996 |
| 20839 | National Offshore LP | Oklahoma City, OK 73154 | Oil & Gas Operator | Mar 2008 |
| 20840 | National Oil Co Ohio The | Columbus, OH 43215 | Oil & Gas Operator | Sep 1999 |
| 20841 | National Oil Com | | Oil & Gas Operator | Oct 1992 |
| 20842 | National Oil Company | Garden City, KS 67846 | Oil & Gas Operator | Jun 2024 |
| 20843 | National Onshore LP | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2008 |
| 20844 | National Petrole | | Oil & Gas Operator | Dec 1996 |
| 20845 | National Petroleum Reserves, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Apr 2012 |
| 20846 | National Pride Operating | Parker, CO 80134 | Oil & Gas Operator | Dec 2017 |
| 20847 | National Surface & Minerals, LLC | Addison, TX 75001 | Gas Operator | Jan 2023 |
| 20848 | National Treasure Mines | San Marina, CA 91118 | Oil Operator | Dec 1998 |
| 20849 | Native Exploration Operating LLC | Oklahoma City, OK 73102-5804 | Oil & Gas Operator | Aug 2025 |
| 20850 | Native Gas Company LLC | Edmond, OK 73083-7435 | Oil & Gas Operator | Mar 2015 |
| 20851 | Nativity Of Our Lord | Orchard Park, NY 14127 | Gas Operator | Dec 2024 |
| 20852 | Natl Fuel Gas Supply Corp | Williamsville, NY 14221-5887 | Oil & Gas Operator | Dec 2009 |
| 20853 | Natland Energy Corp | New Philadelphi, OH 44663 | Oil & Gas Operator | Dec 1996 |
| 20854 | Natomas North America Inc | | Oil & Gas Operator | Aug 1993 |
| 20855 | Natomas-McCormick-Coastal | | Oil & Gas Operator | Feb 1984 |
| 20856 | Natrona County Holdings LLC | Austin, TX 78701 | Oil & Gas Operator | Nov 2020 |
| 20857 | Natural Capital LLC | Castle Rock, CO 80104 | Oil & Gas Operator | Dec 2009 |
| 20858 | Natural Energy Dev Corp | Pittsburgh, PA 15241-1548 | Oil & Gas Operator | Dec 2018 |
| 20859 | Natural Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Jul 1997 |
| 20860 | Natural Gas & Oi | | Gas Operator | Dec 1987 |
| 20861 | Natural Gas & Oil, Inc. | Fayette, AL 35555 | Oil & Gas Operator | Oct 2025 |
| 20862 | Natural Gas Anadarko Company | Perryton, TX 79070 | Oil & Gas Operator | Feb 2026 |
| 20863 | Natural Gas Anadarko Inc | Perryton, TX 79070 | Oil & Gas Operator | May 1999 |
| 20864 | Natural Gas Compression Corp | Cleveland, OK 74020 | Oil & Gas Operator | Jan 2025 |
| 20865 | Natural Gas Corp Of Ca | Vernal, UT 84078 | Oil & Gas Operator | Jun 1989 |
| 20866 | Natural Gas Corp Of California | Vernal, UT 84078 | Oil & Gas Operator | Dec 1989 |
| 20867 | Natural Gas Corp. Of Calif. | | Oil & Gas Operator | Dec 1987 |
| 20868 | Natural Gas Expl | | Oil & Gas Operator | Jul 1990 |
| 20869 | Natural Gas MKTG. & Storage Co. | Houston, TX 77251 | Oil & Gas Operator | Sep 1996 |
| 20870 | Natural Gas Pipeline Co Of Am LLC | Downers Grove, IL 60515-3708 | Oil & Gas Operator | Mar 2015 |
| 20871 | Natural Gas Pipeline Co Of Amer. | Houston, TX 77002 | Gas Operator | Jul 2008 |
| 20872 | Natural Gas Processing Company | Worland, WY 82401 | Oil & Gas Operator | Dec 2025 |
| 20873 | Natural Gas Resources Inc | Davenport, IA 52809-1675 | Oil & Gas Operator | Oct 2022 |
| 20874 | Natural Gas Services | Roswell, NM 88202 | Oil & Gas Operator | Jan 1996 |
| 20875 | Natural Gas Systems, Inc. | | Oil & Gas Operator | Dec 2002 |
| 20876 | Natural Oil & Gas Corp | Bradford, PA 16701 | Oil & Gas Operator | Dec 2023 |
| 20877 | Natural Petroleum Company | Overton, TX 75684 | Oil & Gas Operator | Jun 1994 |
| 20878 | Natural Progression Oil & Gas Corp | Stillwater, OK 74075 | Oil & Gas Operator | Nov 2025 |
| 20879 | Natural Reserves Group, Inc. | Houston, TX 77057 | Oil & Gas Operator | Jun 1993 |
| 20880 | Natural Resource Corporation | Rock Springs, WY 82901 | Oil & Gas Operator | Sep 1983 |
| 20881 | Natural Resource Group Inc | | Oil & Gas Operator | Jan 2024 |
| 20882 | Natural Resource MGMT. Corp. | | Oil & Gas Operator | Jun 1989 |
| 20883 | Natural Resources Operating LLC | Norman, OK 73071-1295 | Oil & Gas Operator | Jan 2023 |
| 20884 | Naumann Oil & Gas, Inc. | Austin, TX 78716 | Oil & Gas Operator | Feb 2026 |
| 20885 | Nautilus Exploration LLC | Denver, CO 80218 | Oil Operator | Mar 2011 |
| 20886 | Nautilus Exploration, Inc. | Farmers BRNCH, TX 75234 | Oil & Gas Operator | Nov 2021 |
| 20887 | Navajo Exploration, Inc. | Corpus Chrsti, TX 78410 | Oil & Gas Operator | Feb 2026 |
| 20888 | Navajo Nation Oil & Gas Co | Window Rock, AZ 86511 | Oil & Gas Operator | Oct 2012 |
| 20889 | Navajo Oil Company | Wichita, KS 67206 | Gas Operator | May 2011 |
| 20890 | Navalo | Rockdale, TX 76567 | Oil Operator | Feb 2026 |
| 20891 | Navarro Exploration Co., Inc. | Kingwood, TX 77345 | Oil & Gas Operator | Feb 2026 |
| 20892 | Navarro Gas Production Company | | Gas Operator | Dec 1996 |
| 20893 | Navarro Operating Co. | Kilgore, TX 75663 | Oil & Gas Operator | Aug 2003 |
| 20894 | Navasota Resources LTD. | | Oil & Gas Operator | Sep 2002 |
| 20895 | Navidad Operating Company, LLC | Flint, TX 75762 | Oil & Gas Operator | Jan 2025 |
| 20896 | Navidad Resources, LLC | Bullard, TX 75757 | Oil & Gas Operator | Feb 2026 |
| 20897 | Navigation Powder River LLC | Houston, TX 77024 | Oil & Gas Operator | Dec 2025 |
| 20898 | Navitas Land And Mineral Development, LLC | | Oil Operator | Dec 2016 |
| 20899 | Navitas Oil & Gas LLC | | Gas Operator | Dec 2012 |
| 20900 | Navitas Resources, LLC | | Oil & Gas Operator | May 2016 |