| 20301 | Nolin Rural Electric Coop | Elizabethtown, KY 42701 | Gas Operator | Dec 2022 |
| 20302 | Nolt, Leonard R. And Marian M. Nolt | Dundee, NY 14837 | Gas Operator | Dec 2023 |
| 20303 | Nolte, Mike E., Inc. | Longview, TX 75606 | Oil & Gas Operator | Feb 2006 |
| 20304 | Nolteco, Inc. | Longview, TX 75606 | Oil & Gas Operator | Nov 2024 |
| 20305 | Nomeco Oil & Gas Co. | Jackson, MI 49204 | Oil & Gas Operator | Dec 1994 |
| 20306 | Nomoc Oil Company Inc | Oklahoma City, OK 73112 | Oil & Gas Operator | May 2006 |
| 20307 | Nondorf Oil & Ga | | Oil Operator | Dec 1986 |
| 20308 | Nondorf Oil & Gas Inc | Oklahoma City, OK 73154 | Oil & Gas Operator | Feb 2008 |
| 20309 | Nonsuch Natural Gas Inc | Naples, FL 34108 | Oil & Gas Operator | Sep 2024 |
| 20310 | Noonday Exploration, LLC | Tyler, TX 75711 | Oil & Gas Operator | Apr 2024 |
| 20311 | Nooner Cynthia | Ratliff City, OK 73481 | Oil Operator | Aug 2024 |
| 20312 | Nor-Am Exploration | | Oil Operator | Jun 1981 |
| 20313 | Nor-West Kansas Oil, L.L.C. | Wakeeney, KS 67672 | Oil Operator | Dec 2019 |
| 20314 | Nora Company | Pampa, TX 79065 | Oil & Gas Operator | Nov 2024 |
| 20315 | Noram Field Services Corp. | | Oil Operator | Apr 1999 |
| 20316 | Noram Operating Company | Houston, TX 77002 | Oil Operator | Oct 1999 |
| 20317 | Noramco Production, LLC | Midland, TX 79710 | Oil & Gas Operator | Jan 2023 |
| 20318 | Norbay Oil Corp. | | Oil & Gas Operator | Dec 1999 |
| 20319 | Norbert J Baumgart | Warren, PA 16365-3403 | Oil & Gas Operator | Dec 2009 |
| 20320 | Norcen Energy Inc | | Oil Operator | Dec 1989 |
| 20321 | Norcen Explorer, Inc. | Houston, TX 77079 | Oil & Gas Operator | May 1998 |
| 20322 | Norco Development, Inc. | | Oil Operator | Jul 1994 |
| 20323 | Nordan & Company | San Antonio, TX 78205 | Oil & Gas Operator | Jun 2004 |
| 20324 | Nordan Oil & Gas Corporation | Abilene, TX 79604 | Oil & Gas Operator | Feb 2018 |
| 20325 | Nordan Trust, The | San Antonio, TX 78205 | Oil & Gas Operator | Nov 2003 |
| 20326 | Nordic Oil Company | | Oil & Gas Operator | Dec 1999 |
| 20327 | Nordmeyer Oil, Inc. | Toronto, KS 66777 | Oil Operator | Dec 2019 |
| 20328 | Nordstrand Engineering Inc | Houston, TX 77019 | Oil & Gas Operator | Nov 2024 |
| 20329 | Nordstrand/Galoostian Oil & Gas | Houston, TX 77056 | Oil Operator | Mar 1998 |
| 20330 | Norexco Inc. | | Oil & Gas Operator | Aug 1988 |
| 20331 | Norgas Energy | Lakehills, TX 78063 | Oil & Gas Operator | Nov 2024 |
| 20332 | Norman Brothers Tank Truck Inc | Pauls Valley, OK 73075 | Oil & Gas Operator | May 2020 |
| 20333 | Norman Kenneth W | Sasakwa, OK 74867-0086 | Oil Operator | Oct 2017 |
| 20334 | Norman L Gilbreath | Aztec, NM 87401 | Gas Operator | Aug 2018 |
| 20335 | Norman Oil Corporation | Abilene, TX 79608 | Oil & Gas Operator | Mar 2000 |
| 20336 | Norman Production Company | Chandler, OK 74834-8538 | Oil & Gas Operator | May 2015 |
| 20337 | Norman, C. D. | Irving, TX 75015 | Oil & Gas Operator | Mar 2008 |
| 20338 | Nornew Inc | Houston, TX 77063-2140 | Oil & Gas Operator | Dec 2008 |
| 20339 | Norris, Robert E. III | Savannah, NY 13146 | Gas Operator | Dec 2023 |
| 20340 | Norse Energy Corp USA | | Gas Operator | Dec 2011 |
| 20341 | Norstar Development | Madras, OR 97741 | Oil Operator | Nov 2018 |
| 20342 | Norstar Petroleu | | Oil & Gas Operator | Dec 1996 |
| 20343 | Norstar Petroleum Inc | Englewood, CO 80112 | Oil & Gas Operator | Jul 2024 |
| 20344 | Nortex Energy, Inc. | Muenster, TX 76252 | Oil Operator | Nov 2024 |
| 20345 | Nortex Gas & Oil Co | Tulsa, OK 74135 | Oil & Gas Operator | Sep 1993 |
| 20346 | Nortex Oil & Gas, Inc. | | Oil Operator | Feb 1994 |
| 20347 | Nortex Production Co., LLC | Wichita Falls, TX 76310 | Oil Operator | Nov 2024 |
| 20348 | North Amer Oil & Gas Drilling Co Inc | Pleasantville, PA 16341-0197 | Oil Operator | Dec 1999 |
| 20349 | North Amer Oil Exp Inc | Trenton, OH 45067 | Oil Operator | Dec 2023 |
| 20350 | North Amer Petroleum Inc | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2000 |
| 20351 | North American D | | Oil & Gas Operator | Sep 1986 |
| 20352 | North American Drilling & Exploration, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Aug 2015 |
| 20353 | North American Drilling Corp | Plano, TX 75093 | Oil & Gas Operator | Nov 2024 |
| 20354 | North American Energy Inc | Duncan, OK 73533-9604 | Oil & Gas Operator | Nov 2000 |
| 20355 | North American Exploration Co. | Abilene, TX 79602 | Oil & Gas Operator | Apr 1998 |
| 20356 | North American Operating, LLC | Ardmore, OK 73401 | Oil Operator | Sep 2024 |
| 20357 | North American Petroleum Inc | Scottsdale, AZ 85262 | Oil & Gas Operator | Dec 2023 |
| 20358 | North American Prod Co | Wooster, OH 44691 | Oil & Gas Operator | Dec 1998 |
| 20359 | North American Reserve Corp. | Houston, TX 77060 | Oil & Gas Operator | Oct 2010 |
| 20360 | North American Resources Company | Billings, MT 59101 | Oil & Gas Operator | Dec 2019 |
| 20361 | North American Royalties, Inc. | Chattanooga, TN 37408 | Oil & Gas Operator | Oct 2001 |
| 20362 | North American Technical Trading Company, Inc. | Oakbrook Terrace, IL 60181 | Oil Operator | Jan 2011 |
| 20363 | North Bound Exploration Co | Pauls Valley, OK 73075-0863 | Oil & Gas Operator | Jan 2018 |
| 20364 | North Cambria Fuel Co | Blairsville, PA 15717-7961 | Gas Operator | Dec 2008 |
| 20365 | North Central Casing Pullers,Inc | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
| 20366 | North Central Oil Corp. | Houston, TX 77252 | Oil & Gas Operator | Dec 2005 |
| 20367 | North Central Oil Corp., Et Al | | Oil & Gas Operator | Mar 1977 |
| 20368 | North Central Texas Energy LLC | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 20369 | North Coast Petroleum Inc | Hiram, OH 44234 | Oil & Gas Operator | Dec 1993 |
| 20370 | North Country Energy LLC | Amarillo, TX 79159 | Oil & Gas Operator | Nov 2024 |
| 20371 | North East Fuel Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2015 |
| 20372 | North East Gas & Oil Co | Scottsville, VA 24590-3962 | Oil & Gas Operator | Dec 2013 |
| 20373 | North Finn LLC | Casper, WY 82605 | Oil & Gas Operator | Sep 2024 |
| 20374 | North Fork Operating LP | Mustang, OK 73064 | Oil & Gas Operator | Nov 2024 |
| 20375 | North Harmony Ventures, Inc. | Jamestown, NY 14701 | Oil & Gas Operator | Dec 2023 |
| 20376 | North John M | Valatie, NY 12184-5005 | Gas Operator | Dec 2014 |
| 20377 | North Lake Resources LLC | Oklahoma City, OK 73132-5182 | Oil & Gas Operator | Sep 2024 |
| 20378 | North Of River Sanitary District | | Oil & Gas Operator | Dec 2002 |
| 20379 | North Operating Company | Canton, TX 75103 | Oil & Gas Operator | Nov 2024 |
| 20380 | North Pacific Oil And Gas, Inc | Houston, TX 77042 | Oil Operator | Mar 2013 |
| 20381 | North Padre Explor. Venture LLC | Corpus Chrsti, TX 78473 | Oil & Gas Operator | May 2004 |
| 20382 | North Penn Gas Co | Allentown, PA 18101-1139 | Gas Operator | Dec 2000 |
| 20383 | North Plains Corp | Tulsa, OK 74137 | Oil & Gas Operator | Jul 2024 |
| 20384 | North Plains Energy, LLC | | Oil & Gas Operator | Jan 2016 |
| 20385 | North Plains Oil | | Oil Operator | Jul 1990 |
| 20386 | North Range Resources, LLC | | Oil & Gas Operator | Nov 2023 |
| 20387 | North Ridge Corporation | Duncanville, TX 75137 | Oil & Gas Operator | Nov 2024 |
| 20388 | North Ridge Energy Inc | Rome, OH 44085-9713-9713 | Oil & Gas Operator | Dec 2023 |
| 20389 | North Shore Energy, L.L.C. | Austin, TX 78750 | Oil & Gas Operator | Nov 2024 |
| 20390 | North Shore Exploration & Production, LLC | Broomfield, CO 80021 | Oil & Gas Operator | Sep 2024 |
| 20391 | North Silo Resources LLC | Houston, TX 77055 | Oil & Gas Operator | Sep 2024 |
| 20392 | North Slope Borough | | Gas Operator | Sep 2024 |
| 20393 | North South Oil, LLC | Luling, TX 78648 | Oil Operator | Nov 2024 |
| 20394 | North Star Energy Resources LLC | Waynesburg, PA 15370-3833 | Gas Operator | Dec 2023 |
| 20395 | North Star Energy, Inc. | Strawn, TX 76475 | Oil & Gas Operator | Jan 2010 |
| 20396 | North Star Exploration Company | Oklahoma City, OK 73116 | Oil & Gas Operator | Aug 2024 |
| 20397 | North Star Petroleum Corp. | San Antonio, TX 78209 | Oil & Gas Operator | Oct 1993 |
| 20398 | North Texas Energy,Inc. | Dallas, TX 75252 | Oil Operator | Nov 2024 |
| 20399 | North Texas Llano Operating Corp | Dallas, TX 75225 | Oil & Gas Operator | Nov 2024 |
| 20400 | North Texas Oil & Gas, LLC | Edmond, OK 73013 | Oil & Gas Operator | Nov 2024 |