| 20501 | Noble Operating Company Inc | Garden City, KS 67846 | Oil & Gas Operator | Sep 2014 |
| 20502 | Noble Operating, LLC | Flower Mound, TX 75028 | Oil & Gas Operator | Sep 2013 |
| 20503 | Noble Petroleum LLC | Lower Salem, OH 45745-9648 | Oil & Gas Operator | Dec 2024 |
| 20504 | Noble Petroleum, Inc. | Wichita, KS 67205 | Oil Operator | Sep 2013 |
| 20505 | Noble Producing Company Inc. | Dallas, TX 75244 | Oil & Gas Operator | Mar 1996 |
| 20506 | Noble Resources Inc | Mannford, OK 74044 | Oil & Gas Operator | Jun 2025 |
| 20507 | Noble, Alton L | Westfield, NY 14787 | Gas Operator | Dec 2024 |
| 20508 | Nobleson Operating, Inc. | Dallas, TX 75244 | Oil & Gas Operator | Jun 1996 |
| 20509 | Noc | Iowa Park, TX 76367 | Oil & Gas Operator | Dec 2020 |
| 20510 | Noco Investment Company Inc | Tulsa, OK 74159-0470 | Oil & Gas Operator | Mar 2005 |
| 20511 | Nodding Donkey Production | Pampa, TX 79065 | Oil & Gas Operator | Oct 2025 |
| 20512 | Noe And Woods, Et Al | | Gas Operator | Jan 2008 |
| 20513 | Noe, T. C. Oil Acct. | Selman City, TX 75689 | Oil & Gas Operator | May 1996 |
| 20514 | Noel Operating, Inc. | Huntsville, TX 77340 | Oil & Gas Operator | Oct 2000 |
| 20515 | Noex, L.L.C. | Houston, TX 77057 | Oil & Gas Operator | Apr 1998 |
| 20516 | Nog Production & Operating LLC | Goliad, TX 77963 | Oil & Gas Operator | Oct 2025 |
| 20517 | Nogp Operating Company Inc | Tomball, TX 77377 | Oil & Gas Operator | Jun 2025 |
| 20518 | Noir-Blanc | Russell, KS 67665 | Oil Operator | May 1992 |
| 20519 | Nokota Energy Corporation | Bakersfield, CA 93313 | Oil Operator | Oct 2025 |
| 20520 | Nokusu, LTD. | Dallas, TX 75231 | Oil & Gas Operator | Sep 2008 |
| 20521 | Nolen Oil & Gas | Beeville, TX 78102 | Oil & Gas Operator | Oct 2025 |
| 20522 | Nolen, Charles R. | San Angelo, TX 76904 | Oil & Gas Operator | Dec 2006 |
| 20523 | Nolin Rural Electric Coop | Elizabethtown, KY 42701 | Gas Operator | Dec 2023 |
| 20524 | Nolt, Leonard R. And Marian M. Nolt | Dundee, NY 14837 | Gas Operator | Dec 2024 |
| 20525 | Nolte, Mike E. | Longview, TX 75606 | Oil & Gas Operator | Jun 1995 |
| 20526 | Nolte, Mike E., Inc. | Longview, TX 75606 | Oil & Gas Operator | Feb 2006 |
| 20527 | Nolteco, Inc. | Longview, TX 75606 | Oil & Gas Operator | Oct 2025 |
| 20528 | Nomeco Oil & Gas Co. | Jackson, MI 49204 | Oil & Gas Operator | Dec 1994 |
| 20529 | Nomoc Oil Company Inc | Oklahoma City, OK 73112 | Oil & Gas Operator | May 2006 |
| 20530 | Nondorf Oil & Ga | | Oil Operator | Dec 1986 |
| 20531 | Nondorf Oil & Gas Inc | Oklahoma City, OK 73154 | Oil & Gas Operator | Feb 2008 |
| 20532 | Nonsuch Natural Gas Inc | Naples, FL 34108 | Oil & Gas Operator | Jun 2025 |
| 20533 | Noonday Exploration, LLC | Tyler, TX 75711 | Oil & Gas Operator | Apr 2024 |
| 20534 | Nooner Cynthia | Ratliff City, OK 73481 | Oil Operator | May 2025 |
| 20535 | Nor-Am Exploration | | Oil Operator | Jun 1981 |
| 20536 | Nor-West Kansas Oil, L.L.C. | Wakeeney, KS 67672 | Oil Operator | Dec 2019 |
| 20537 | Nora Company | Pampa, TX 79065 | Oil & Gas Operator | Oct 2025 |
| 20538 | Noram Field Services Corp. | | Oil Operator | Apr 1999 |
| 20539 | Noram Operating Company | Houston, TX 77002 | Oil Operator | Oct 1999 |
| 20540 | Noramco Production, LLC | Midland, TX 79710 | Oil & Gas Operator | Jan 2023 |
| 20541 | Norbay Oil Corp. | | Oil & Gas Operator | Dec 1999 |
| 20542 | Norbert J Baumgart | Warren, PA 16365-3403 | Oil & Gas Operator | Dec 2009 |
| 20543 | Norcen Energy Inc | | Oil Operator | Dec 1989 |
| 20544 | Norcen Explorer, Inc. | Houston, TX 77079 | Oil & Gas Operator | May 1998 |
| 20545 | Norco Development, Inc. | | Oil Operator | Jul 1994 |
| 20546 | Nordan & Company | San Antonio, TX 78205 | Oil & Gas Operator | Jun 2004 |
| 20547 | Nordan Oil & Gas Corporation | Abilene, TX 79604 | Oil & Gas Operator | Feb 2018 |
| 20548 | Nordan Trust, The | San Antonio, TX 78205 | Oil & Gas Operator | Nov 2003 |
| 20549 | Nordic Oil Company | | Oil & Gas Operator | Dec 1999 |
| 20550 | Nordmeyer Oil, Inc. | Toronto, KS 66777 | Oil Operator | Dec 2019 |
| 20551 | Nordstrand Engineering Inc | Houston, TX 77019 | Oil & Gas Operator | Oct 2025 |
| 20552 | Nordstrand/Galoostian Oil & Gas | Houston, TX 77056 | Oil Operator | Mar 1998 |
| 20553 | Norexco Inc. | | Oil & Gas Operator | Aug 1988 |
| 20554 | Norgas Energy | Lakehills, TX 78063 | Oil & Gas Operator | Oct 2025 |
| 20555 | Norman Brothers Tank Truck Inc | Pauls Valley, OK 73075 | Oil & Gas Operator | May 2020 |
| 20556 | Norman Kenneth W | Sasakwa, OK 74867-0086 | Oil Operator | Oct 2017 |
| 20557 | Norman L & Loretta E Gilbreath | Aztec, NM 87401 | Gas Operator | Aug 2018 |
| 20558 | Norman L Gilbreath | Aztec, NM 87401 | Gas Operator | Aug 2018 |
| 20559 | Norman Oil Corporation | Abilene, TX 79608 | Oil & Gas Operator | Mar 2000 |
| 20560 | Norman Production Company | Chandler, OK 74834-8538 | Oil & Gas Operator | May 2015 |
| 20561 | Norman, C. D. | Irving, TX 75015 | Oil & Gas Operator | Mar 2008 |
| 20562 | Nornew Inc | Houston, TX 77063-2140 | Oil & Gas Operator | Dec 2008 |
| 20563 | Norris, Robert E. III | Savannah, NY 13146 | Gas Operator | Dec 2024 |
| 20564 | Norse Energy Corp USA | | Gas Operator | Dec 2011 |
| 20565 | Norstar Development | Madras, OR 97741 | Oil Operator | Nov 2018 |
| 20566 | Norstar Petroleu | | Oil & Gas Operator | Dec 1996 |
| 20567 | Norstar Petroleum Inc | Englewood, CO 80112 | Oil & Gas Operator | Jun 2025 |
| 20568 | Nortex Energy, Inc. | Muenster, TX 76252 | Oil Operator | Oct 2025 |
| 20569 | Nortex Gas & Oil Co | Tulsa, OK 74135 | Oil & Gas Operator | Sep 1993 |
| 20570 | Nortex Oil & Gas, Inc. | | Oil Operator | Feb 1994 |
| 20571 | Nortex Production Co., LLC | Wichita Falls, TX 76310 | Oil Operator | Oct 2025 |
| 20572 | North Amer Oil & Gas Drilling Co Inc | Pleasantville, PA 16341-0197 | Oil Operator | Dec 1999 |
| 20573 | North Amer Oil Exp Inc | Trenton, OH 45067 | Oil Operator | Dec 2024 |
| 20574 | North Amer Petroleum Inc | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2000 |
| 20575 | North American D | | Oil & Gas Operator | Sep 1986 |
| 20576 | North American Drilling & Exploration, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Aug 2015 |
| 20577 | North American Drilling Corp | Plano, TX 75093 | Oil & Gas Operator | Oct 2025 |
| 20578 | North American Energy Inc | Duncan, OK 73533-9604 | Oil & Gas Operator | Nov 2000 |
| 20579 | North American Exploration Co. | Abilene, TX 79602 | Oil & Gas Operator | Apr 1998 |
| 20580 | North American Operating, LLC | Ardmore, OK 73401 | Oil & Gas Operator | Jul 2025 |
| 20581 | North American Petroleum Inc | Scottsdale, AZ 85262 | Oil & Gas Operator | Dec 2024 |
| 20582 | North American Prod Co | Wooster, OH 44691 | Oil & Gas Operator | Dec 1998 |
| 20583 | North American Reserve Corp. | Houston, TX 77060 | Oil & Gas Operator | Oct 2010 |
| 20584 | North American Resources Company | Billings, MT 59101 | Oil & Gas Operator | Dec 2019 |
| 20585 | North American Royalties, Inc. | Chattanooga, TN 37408 | Oil & Gas Operator | Oct 2001 |
| 20586 | North American Technical Trading Company, Inc. | Oakbrook Terrace, IL 60181 | Oil Operator | Jan 2011 |
| 20587 | North Bound Exploration Co | Pauls Valley, OK 73075-0863 | Oil & Gas Operator | Jan 2018 |
| 20588 | North Cambria Fuel Co | Blairsville, PA 15717-7961 | Gas Operator | Dec 2008 |
| 20589 | North Canadian Production LLC | Okemah, OK 74859 | Oil & Gas Operator | Jun 2025 |
| 20590 | North Central Casing Pullers,Inc | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
| 20591 | North Central Oil Corp | Houston, TX 77252 | Oil & Gas Operator | Dec 2005 |
| 20592 | North Central Oil Corp., Et Al | | Oil & Gas Operator | Mar 1977 |
| 20593 | North Central Texas Energy LLC | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 20594 | North Coast Petroleum Inc | Hiram, OH 44234 | Oil & Gas Operator | Dec 1993 |
| 20595 | North Country Energy LLC | Amarillo, TX 79159 | Oil & Gas Operator | Oct 2025 |
| 20596 | North East Fuel Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2015 |
| 20597 | North East Gas & Oil Co | Scottsville, VA 24590-3962 | Oil & Gas Operator | Dec 2013 |
| 20598 | North Finn LLC | Casper, WY 82605 | Oil & Gas Operator | Aug 2025 |
| 20599 | North Fork Operating LP | Mustang, OK 73064 | Oil & Gas Operator | Oct 2025 |
| 20600 | North Harmony Ventures, Inc. | Jamestown, NY 14701 | Oil & Gas Operator | Dec 2024 |