| 20801 | NPF Energy Corporation | Boise, ID 83708 | Oil & Gas Operator | Feb 2025 |
| 20802 | NRC Development, LLC | | Gas Operator | Nov 2002 |
| 20803 | NRD - Rein Resources, A General Partnership | Union, KY 41091 | Oil Operator | Feb 2025 |
| 20804 | NRG Assets Management, LLC | Houston, TX 77057 | Oil & Gas Operator | Nov 2016 |
| 20805 | NRG Oil LLC | Stratford, OK 74872-9732 | Oil Operator | Feb 2012 |
| 20806 | NRG Resources, Inc. | Houston, TX 77057 | Oil & Gas Operator | Jun 1987 |
| 20807 | NRPC Operating, LLC | Dallas, TX 75206 | Oil Operator | Feb 2012 |
| 20808 | NS Oil LLC | Minneapolis, MN 55410 | Oil Operator | Mar 2025 |
| 20809 | NT Minerals, LLC | Tulsa, OK 74172 | Oil & Gas Operator | Jun 2025 |
| 20810 | NTR Energy LLC (Osage Cty Only) | | Oil & Gas Operator | Apr 2020 |
| 20811 | NTS Energy LLC | Indiana, PA 15701-1801 | Oil & Gas Operator | Dec 2015 |
| 20812 | Nub'S Well Servicing Inc | Ratliff City, OK 73481 | Oil & Gas Operator | Apr 2025 |
| 20813 | Nucomer Energy LLC | Erie, PA 16507 | Oil & Gas Operator | Apr 2025 |
| 20814 | Nucor Oil & Gas Inc | Riverton, WY 82501 | Oil & Gas Operator | Mar 2025 |
| 20815 | Nucorp Energy, Inc. | | Oil & Gas Operator | Jan 1985 |
| 20816 | Nueces Minerals Company | Dallas, TX 75251 | Oil & Gas Operator | May 2021 |
| 20817 | Nueces Oil Company | George West, TX 78022 | Oil & Gas Operator | Mar 2008 |
| 20818 | Nueces Petroleum Corporation | Sugar Land, TX 77496 | Oil Operator | Jun 2025 |
| 20819 | Nueces Reserves, Inc. | Houston, TX 77019 | Oil & Gas Operator | Oct 2002 |
| 20820 | Nuenergy LLC | | Oil & Gas Operator | Jan 2025 |
| 20821 | Nuevida Resources LLC | Dallas, TX 75235 | Gas Operator | Mar 2025 |
| 20822 | Nuevo Energy Company | Houston, TX 77002 | Oil & Gas Operator | Dec 2002 |
| 20823 | Nuevo Texas Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2004 |
| 20824 | Nuex Operating, Inc. | | Oil Operator | Oct 2004 |
| 20825 | Nugulf Operating, L.L.C. | | Oil & Gas Operator | Dec 2024 |
| 20826 | Null, W. M. & San Patricio Corp. | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Aug 1994 |
| 20827 | Null, W.M. Operations, Inc. | Corpus Chrsti, TX 78475 | Oil & Gas Operator | Jun 2002 |
| 20828 | Numac LLC | Cherryvale, KS 67335 | Oil Operator | Dec 2024 |
| 20829 | Numar Oil And Gas Corporation | Sante Fe, NM 87502 | Oil & Gas Operator | Jun 2025 |
| 20830 | Numatex, Inc | | Oil Operator | Dec 2013 |
| 20831 | Numen Corporation | | Oil & Gas Operator | Jan 1982 |
| 20832 | Nupower Energy, LLC | Houston, TX 77058 | Oil & Gas Operator | Jun 2025 |
| 20833 | Nuroc Energy Incorporated | Andrews, TX 79714 | Oil Operator | Apr 2025 |
| 20834 | Nuss Oil Operations | | Oil & Gas Operator | Aug 1998 |
| 20835 | Nuss Sally | | Oil Operator | Mar 1982 |
| 20836 | Nuss, Fred J. | Hoisington, KS 67544 | Gas Operator | Feb 2025 |
| 20837 | Nuss, Kenneth J. | Russell, KS 67665 | Oil Operator | Aug 1997 |
| 20838 | Nutek Oil Inc | San Antonio, TX 78254 | Oil & Gas Operator | Feb 2006 |
| 20839 | Nutt Jerrie | Duncan, OK 73534-0698 | Oil & Gas Operator | Nov 2016 |
| 20840 | Nuttco Oil & Gas | Corning, OH 43730 | Oil & Gas Operator | Dec 2010 |
| 20841 | Nuwi-Bayshore LLC | | Oil & Gas Operator | Dec 1999 |
| 20842 | NV O&G Investments LLC /Osage Only | | Oil Operator | Sep 2022 |
| 20843 | NWG Operating LLC | Canyon, TX 79015 | Oil & Gas Operator | Jun 2025 |
| 20844 | NWM Operating Inc | Okeene, OK 73763 | Oil & Gas Operator | Apr 2025 |
| 20845 | NWM Properties LLC | Tulsa, OK 74131-4426 | Oil Operator | Apr 2025 |
| 20846 | Ny Oil Inc. | | Oil Operator | Dec 2025 |
| 20847 | Nyc Resources LTD | Tulsa, OK 74133-5700 | Oil & Gas Operator | Sep 2014 |
| 20848 | Nye Exploration & Prod, L.L.C. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Jun 2025 |
| 20849 | Nye Oil Company | Oklahoma City, OK 73118-1245 | Oil & Gas Operator | Jun 2004 |
| 20850 | Nylund* J. W. | | Oil Operator | Jul 2000 |
| 20851 | Nys Natural Gas Co | Englewood, CO 80111-4737 | Gas Operator | Dec 1984 |
| 20852 | Nytex Energy LLC | Edmond, OK 73083-5946 | Oil & Gas Operator | Sep 2015 |
| 20853 | Nytex Petroleum, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2014 |
| 20854 | Nytex, L.L.C. | Edmond, OK 73083 | Oil & Gas Operator | Feb 2006 |
| 20855 | Nytis Exploration Company LLC | Lexington, KY 40509 | Oil & Gas Operator | Dec 2021 |
| 20856 | NZ Operating Company Inc. | Houston, TX 77069 | Oil & Gas Operator | Jun 2025 |
| 20857 | O & G Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Oct 1996 |
| 20858 | O & O Operators, LLC. | Fate, TX 75132 | Oil & Gas Operator | Jun 2025 |
| 20859 | O G & E | Oklahoma City, OK 73124 | Oil & Gas Operator | Feb 2014 |
| 20860 | O H Berry | Midland, TX 79702 | Oil & Gas Operator | Feb 2003 |
| 20861 | O Hill Enterprises, Inc. | La Grange, TX 78945 | Oil & Gas Operator | Jan 2014 |
| 20862 | O I L Energy Corp | | Oil & Gas Operator | Oct 2017 |
| 20863 | O I L Niagaran LLC | | Oil & Gas Operator | May 2017 |
| 20864 | O K Swabbing Inc | Hennessey, OK 73742 | Oil & Gas Operator | Mar 2025 |
| 20865 | O S & J Operatin | | Oil Operator | Nov 1984 |
| 20866 | O S & S Oil Company | Electra, TX 76360 | Oil & Gas Operator | Jan 2018 |
| 20867 | O&Apos;Brien Energy Resources Corp | | Oil & Gas Operator | Dec 2024 |
| 20868 | O&G Investments Inc. | Runge, TX 78151 | Oil & Gas Operator | Feb 2003 |
| 20869 | O'Bar Operating Co., Inc. | Longview, TX 75604 | Oil & Gas Operator | Jun 2025 |
| 20870 | O'Benco, Inc. | Shreveport, LA 71136 | Oil & Gas Operator | Jun 2025 |
| 20871 | O'Blue Corp. | Kerrville, TX 78028 | Oil & Gas Operator | Mar 1998 |
| 20872 | O'Boyle Energy Corporation | | Oil Operator | Feb 1991 |
| 20873 | O'Brien Energy Company | Shreveport, LA 71136 | Oil & Gas Operator | Sep 2019 |
| 20874 | O'Brien Energy Resources Corp | Portsmouth, NH 03801 | Oil & Gas Operator | Jun 2025 |
| 20875 | O'Brien Oil Corporation | Guthrie, OK 73044-3154 | Oil & Gas Operator | Mar 2025 |
| 20876 | O'Brien Oil LLC | Guthrie, OK 73044-3154 | Oil & Gas Operator | Apr 2020 |
| 20877 | O'Brien Operating Company | | Oil & Gas Operator | Dec 2004 |
| 20878 | O'Brien Resources LLC | Shreveport, LA 71136 | Oil Operator | Nov 2017 |
| 20879 | O'Brien, George H. Jr. | Midland, TX 79701 | Oil & Gas Operator | Jun 1994 |
| 20880 | O'Brien, Mae Or Brett Strickland | Belington, WV 26250-0076 | Oil & Gas Operator | Dec 2021 |
| 20881 | O'Brien-Sill | | Oil & Gas Operator | Apr 2025 |
| 20882 | O'Connell, James P. | Vacaville, CA 95687 | Oil Operator | Nov 2009 |
| 20883 | O'Connor & Hewitt, LTD. | Victoria, TX 77901 | Oil & Gas Operator | Jun 1998 |
| 20884 | O'Connor Energy Management, LLC | Victoria, TX 77902 | Oil Operator | Jun 2025 |
| 20885 | O'Connor, Emma | Hamburg, NY 14075 | Gas Operator | Dec 2023 |
| 20886 | O'Dell, Mitchell | Cross Plains, TX 76443 | Oil & Gas Operator | Jun 2025 |
| 20887 | O'Donnell Bill C | Tulsa, OK 74135-4241 | Oil & Gas Operator | Oct 2014 |
| 20888 | O'Donnell Oil LLC | | Oil & Gas Operator | Apr 2025 |
| 20889 | O'Donohoe, Jack | Wichita Falls, TX 76301 | Oil & Gas Operator | May 2002 |
| 20890 | O'Gorman, Brendan & Wheeler, Anne | North Collins, NY 14111 | Gas Operator | Dec 2023 |
| 20891 | O'Gorman, Kevin | Eden, NY 14057 | Gas Operator | Dec 2023 |
| 20892 | O'Hare Energy Co | | Oil Operator | Dec 1983 |
| 20893 | O'Hern Morris D | Mounds, OK 74047-5163 | Oil & Gas Operator | Sep 2016 |
| 20894 | O'Leary'S Oil & Gas Inc. | Arcadia, FL 34266 | Oil & Gas Operator | May 2008 |
| 20895 | O'Malley Production Co. Inc. | | Oil & Gas Operator | Mar 1988 |
| 20896 | O'Meara LLC | | Oil & Gas Operator | Oct 2022 |
| 20897 | O'Meara, Inc. | | Oil & Gas Operator | Dec 2006 |
| 20898 | O'Neal Cattle Co. | Pampa, TX 79066 | Gas Operator | Jun 2025 |
| 20899 | O'Neal Oil & Gas Co | Fort Worth, TX 76107-1479 | Oil & Gas Operator | Apr 2025 |
| 20900 | O'Neal Oil Company | Nocona, TX 76255 | Oil & Gas Operator | Jun 2025 |