| 20101 | Norstar Petroleum Inc | Englewood, CO 80112 | Oil & Gas Operator | Feb 2026 |
| 20102 | Nortex Energy, Inc. | Muenster, TX 76252 | Oil Operator | Jun 2026 |
| 20103 | Nortex Gas & Oil Co | Tulsa, OK 74135 | Oil & Gas Operator | Sep 1993 |
| 20104 | Nortex Oil & Gas, Inc. | | Oil Operator | Feb 1994 |
| 20105 | Nortex Production Co., LLC | Wichita Falls, TX 76310 | Oil Operator | Jun 2026 |
| 20106 | North Amer Oil & Gas Drilling Co Inc | Pleasantville, PA 16341-0197 | Oil Operator | Dec 1999 |
| 20107 | North Amer Oil Exp Inc | Trenton, OH 45067 | Oil Operator | Dec 2024 |
| 20108 | North Amer Petroleum Inc | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2000 |
| 20109 | North American D | | Oil & Gas Operator | Sep 1986 |
| 20110 | North American Drilling & Exploration, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Aug 2015 |
| 20111 | North American Drilling Corp | Plano, TX 75093 | Oil & Gas Operator | Jun 2026 |
| 20112 | North American Energy Inc | Duncan, OK 73533-9604 | Oil & Gas Operator | Nov 2000 |
| 20113 | North American Exploration Co. | Abilene, TX 79602 | Oil & Gas Operator | Apr 1998 |
| 20114 | North American Operating, LLC | Ardmore, OK 73401 | Oil & Gas Operator | Mar 2026 |
| 20115 | North American Petroleum Inc | Scottsdale, AZ 85262 | Oil & Gas Operator | Dec 2025 |
| 20116 | North American Prod Co | Wooster, OH 44691 | Oil & Gas Operator | Dec 1998 |
| 20117 | North American Reserve Corp. | Houston, TX 77060 | Oil & Gas Operator | Oct 2010 |
| 20118 | North American Resources Company | Billings, MT 59101 | Oil & Gas Operator | Dec 2019 |
| 20119 | North American Royalties, Inc. | Chattanooga, TN 37408 | Oil & Gas Operator | Oct 2001 |
| 20120 | North American Technical Trading Company, Inc. | Oakbrook Terrace, IL 60181 | Oil Operator | Jan 2011 |
| 20121 | North Bound Exploration Co | Pauls Valley, OK 73075-0863 | Oil & Gas Operator | Jan 2018 |
| 20122 | North Cambria Fuel Co | Blairsville, PA 15717-7961 | Gas Operator | Dec 2008 |
| 20123 | North Canadian Production LLC | Okemah, OK 74859 | Oil & Gas Operator | Feb 2026 |
| 20124 | North Central Casing Pullers,Inc | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
| 20125 | North Central Oil Corp | Houston, TX 77252 | Oil & Gas Operator | Dec 2005 |
| 20126 | North Central Oil Corp., Et Al | | Oil & Gas Operator | Mar 1977 |
| 20127 | North Central Texas Energy LLC | Graham, TX 76450 | Oil & Gas Operator | Jun 2026 |
| 20128 | North Coast Petroleum Inc | Hiram, OH 44234 | Oil & Gas Operator | Dec 1993 |
| 20129 | North Country Energy LLC | Amarillo, TX 79159 | Oil & Gas Operator | Jun 2026 |
| 20130 | North East Fuel Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2015 |
| 20131 | North East Gas & Oil Co | Scottsville, VA 24590-3962 | Oil & Gas Operator | Dec 2013 |
| 20132 | North Finn LLC | Casper, WY 82605 | Oil & Gas Operator | Mar 2026 |
| 20133 | North Fork Operating LP | Mustang, OK 73064 | Oil & Gas Operator | Jun 2026 |
| 20134 | North Harmony Ventures, Inc. | Jamestown, NY 14701 | Oil & Gas Operator | Dec 2024 |
| 20135 | North John M | Valatie, NY 12184-5005 | Gas Operator | Dec 2014 |
| 20136 | North Lake Resources LLC | Oklahoma City, OK 73132 | Oil & Gas Operator | Mar 2026 |
| 20137 | North Lea Energy Co., LLC | Crossroads, NM 88114 | Oil & Gas Operator | Dec 2025 |
| 20138 | North Of River Sanitary District | | Oil & Gas Operator | Dec 2002 |
| 20139 | North Operating Company | Canton, TX 75103 | Oil & Gas Operator | Jun 2026 |
| 20140 | North Pacific Oil And Gas, Inc | Houston, TX 77042 | Oil Operator | Mar 2013 |
| 20141 | North Padre Explor. Venture LLC | Corpus Chrsti, TX 78473 | Oil & Gas Operator | May 2004 |
| 20142 | North Penn Gas Co | Allentown, PA 18101-1139 | Gas Operator | Dec 2000 |
| 20143 | North Plains Corp | Tulsa, OK 74137 | Oil & Gas Operator | Feb 2026 |
| 20144 | North Plains Energy, LLC | | Oil & Gas Operator | Jan 2016 |
| 20145 | North Plains Oil | | Oil Operator | Jul 1990 |
| 20146 | North Range Resources, LLC | | Oil & Gas Operator | Feb 2026 |
| 20147 | North Ridge Corporation | Duncanville, TX 75137 | Oil & Gas Operator | Jun 2026 |
| 20148 | North Ridge Energy Inc | Rome, OH 44085-9713 | Oil & Gas Operator | Dec 2025 |
| 20149 | North Shore Energy, L.L.C. | Austin, TX 78750 | Oil & Gas Operator | Jun 2026 |
| 20150 | North Shore Exploration & Prod LLC | Broomfield, CO 80021 | Oil & Gas Operator | Mar 2026 |
| 20151 | North Silo Resources LLC | Houston, TX 77055 | Oil & Gas Operator | Apr 2026 |
| 20152 | North Slope Borough | | Gas Operator | Feb 2026 |
| 20153 | North South Oil, LLC | Luling, TX 78648 | Oil Operator | Jun 2026 |
| 20154 | North Star Energy Resources LLC | Waynesburg, PA 15370-3833 | Gas Operator | Dec 2025 |
| 20155 | North Star Energy, Inc. | Strawn, TX 76475 | Oil & Gas Operator | Jan 2010 |
| 20156 | North Star Exploration Company | Oklahoma City, OK 73116 | Oil & Gas Operator | Jan 2026 |
| 20157 | North Star Petroleum Corp. | San Antonio, TX 78209 | Oil & Gas Operator | Oct 1993 |
| 20158 | North Texas Energy,Inc. | Dallas, TX 75252 | Oil Operator | Jun 2026 |
| 20159 | North Texas Llano Operating Corp | Dallas, TX 75225 | Oil & Gas Operator | Jun 2026 |
| 20160 | North Texas Oil & Gas, LLC | Edmond, OK 73013 | Oil & Gas Operator | Jun 2026 |
| 20161 | North Texas Plugging, LLC | Denton, TX 76205 | Oil & Gas Operator | Jun 2026 |
| 20162 | North Texas Pure Gold, LLC | Graham, TX 76450 | Oil Operator | Sep 2008 |
| 20163 | North Valley Gaswell Services | | Gas Operator | Dec 2025 |
| 20164 | North Valley Oil & Gas Co. | | Oil & Gas Operator | Dec 1996 |
| 20165 | Northam Oil Company Inc | Ada, OK 74820-3334 | Oil & Gas Operator | Feb 2026 |
| 20166 | Northamerican Service Group | Katy, TX 77449 | Oil & Gas Operator | Jun 2026 |
| 20167 | Northbrook Oil & Gas Co LLC | Norman, OK 73072 | Oil & Gas Operator | Nov 2014 |
| 20168 | Northbrook Oil & Gas Company | Norman, OK 73070-4916 | Oil & Gas Operator | Jun 2016 |
| 20169 | Northcoast Oil Company | | Oil & Gas Operator | Mar 2009 |
| 20170 | Northcote Cleveland LLC | Borger, TX 79008 | Oil & Gas Operator | Nov 2025 |
| 20171 | Northcott Exploration Co. Inc. | | Oil & Gas Operator | Dec 1987 |
| 20172 | Northcutt Production | Bangs, TX 76823 | Oil & Gas Operator | Jun 2026 |
| 20173 | Northeast Natural Energy LLC | Charleston, WV 25301-2719 | Oil & Gas Operator | Mar 2026 |
| 20174 | Northeast Resources | | Oil & Gas Operator | Jan 1992 |
| 20175 | Northeast Shelf Energy, L.L.C. | | Oil & Gas Operator | Jun 2017 |
| 20176 | Northeast Texas Production Co. | Marshall, TX 75671 | Oil & Gas Operator | Jun 2026 |
| 20177 | Northeastern Energy | Warren, OH 44484 | Oil & Gas Operator | Dec 1991 |
| 20178 | Northeastern Energy Corp | | Oil & Gas Operator | Dec 2015 |
| 20179 | Northeastern Opr Co Inc | Shelocta, PA 15774-2346 | Gas Operator | Dec 2025 |
| 20180 | Northern Energy Devel. Co. | | Gas Operator | Dec 1995 |
| 20181 | Northern Energy Management | | Oil & Gas Operator | Nov 2019 |
| 20182 | Northern Gas Pro | | Gas Operator | Jun 1994 |
| 20183 | Northern Lights | | Oil & Gas Operator | Apr 1993 |
| 20184 | Northern Lights Oil Company, LLC | Andover, KS 67002 | Oil & Gas Operator | Feb 2026 |
| 20185 | Northern Michigan Expl Co | | Oil & Gas Operator | Jul 1990 |
| 20186 | Northern Michigan Oil And Gas Corp | | Oil & Gas Operator | Apr 2026 |
| 20187 | Northern Natural Gas Prod | | Gas Operator | Oct 1989 |
| 20188 | Northern Oil Production, Inc. | Bozeman, MT 59718 | Oil & Gas Operator | Mar 2026 |
| 20189 | Northern Pacific Oil And Gas Incorporated | Houston, TX 77024 | Oil & Gas Operator | Dec 2022 |
| 20190 | Northern Processors Inc | The Woodlands, TX 77387-9385 | Oil & Gas Operator | Sep 2010 |
| 20191 | Northern Producing LLC | Shelby, MT 59474 | Oil Operator | Mar 2026 |
| 20192 | Northern Production Co | Gillette, WY 82717 | Oil & Gas Operator | Apr 2013 |
| 20193 | Northern Pump Company | Denver, CO 80202-3130 | Oil & Gas Operator | Feb 2006 |
| 20194 | Northfield Enterprises | Bryan, TX 77805 | Oil & Gas Operator | Dec 1993 |
| 20195 | Northfield Enterprises, Inc. | Bryan, TX 77802 | Oil & Gas Operator | Jun 2026 |
| 20196 | Northfork Exploration LLC | Electra, TX 76360 | Oil Operator | Jun 2026 |
| 20197 | Northla Productions, LLC | | Oil & Gas Operator | Dec 2024 |
| 20198 | Northland Holdings, Inc. | Calgary, AB T2J 7H2 | Gas Operator | May 2017 |
| 20199 | Northland Operating Company | Dallas, TX 75240 | Oil & Gas Operator | Apr 2003 |
| 20200 | Northland Petroleum, Inc. | Houston, TX 77043 | Oil Operator | Dec 2018 |