| 20401 | New Millennium Resources, Inc. | | Oil & Gas Operator | Apr 2025 |
| 20402 | New Ora Oil, Inc. | | Oil Operator | Aug 1984 |
| 20403 | New Orleans Public Service Inc | | Oil Operator | Dec 1994 |
| 20404 | New River Energy Corporation | | Gas Operator | Dec 2017 |
| 20405 | New Source Oil & Gas, LLC | Victoria, TX 77903 | Oil & Gas Operator | Jun 2025 |
| 20406 | New Tex Oil Co | Hobbs, NM 88240 | Oil & Gas Operator | May 2016 |
| 20407 | New Voyage Enterprises LLC | San Antonio, TX 78278 | Oil Operator | Jun 2025 |
| 20408 | New Western Operating, LLC | Irvine, CA 92618 | Oil & Gas Operator | Dec 2019 |
| 20409 | New York Natural Gas Corp | Pittsburgh, PA 15222-1402 | Gas Operator | Dec 1990 |
| 20410 | New York Petroleum Corp. | | Oil & Gas Operator | Nov 1982 |
| 20411 | New-Lonamen | | Oil & Gas Operator | Dec 2008 |
| 20412 | New-Park, Inc. | | Oil Operator | Sep 1990 |
| 20413 | New-Tex Operating II, LLC | Dallas, TX 75201 | Oil & Gas Operator | Jun 2025 |
| 20414 | New-Tex Operating, LLC | Dallas, TX 75201 | Oil & Gas Operator | Jun 2025 |
| 20415 | Neward Corporation | FT. Worth, TX 76102 | Oil & Gas Operator | Dec 1997 |
| 20416 | Newark E&P Operating, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2017 |
| 20417 | Newark Energy LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2011 |
| 20418 | Newberry, Charles D Inc | Campbellsvlle, KY 42719 | Oil Operator | Jun 2025 |
| 20419 | Newbridge Resources, LLC | Houston, TX 77056 | Oil & Gas Operator | Apr 2025 |
| 20420 | Newcastle Oil & Gas Inc | | Oil Operator | Dec 1988 |
| 20421 | Newcastle Resources, LLC | Tyler, TX 75711 | Oil & Gas Operator | Aug 2015 |
| 20422 | Newco Oil And Gas, LLC | McKinney, TX 75070 | Oil Operator | Jun 2025 |
| 20423 | Newco, Inc. | Oklahoma City, OK 73177 | Oil Operator | Aug 1999 |
| 20424 | Newell Energy LTD | | Gas Operator | Oct 2021 |
| 20425 | Newell Oil And Gas LLC | Shawnee, OK 74801-5783 | Oil & Gas Operator | Apr 2025 |
| 20426 | Newfield Expl. Mid-Con. Inc | Tulsa, OK 74172 | Oil & Gas Operator | Jan 2015 |
| 20427 | Newfield Exploration Company | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2017 |
| 20428 | Newfield Exploration Mid-Continent Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Apr 2011 |
| 20429 | Newfield Production Company | The Woodlands, TX 77380-2764 | Oil & Gas Operator | Jul 2022 |
| 20430 | Newgulf Petroleum, LLC | San Antonio, TX 78209 | Oil & Gas Operator | Sep 2017 |
| 20431 | Newhaven Operating Inc | | Oil & Gas Operator | Dec 1998 |
| 20432 | Newkumet Exploration, Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 2020 |
| 20433 | Newland Farm | Freedom, NY 14065 | Gas Operator | Dec 2023 |
| 20434 | Newland Oil Comp | | Oil Operator | Sep 1996 |
| 20435 | Newman & Scott | Duncan, OK 73534 | Oil & Gas Operator | Mar 2024 |
| 20436 | Newman Bros Drilling | | Oil & Gas Operator | Apr 2004 |
| 20437 | Newman Corporation | Harleton, TX 75651 | Oil & Gas Operator | Aug 2024 |
| 20438 | Newman Cubed, Inc. | Fort Worth, TX 76147 | Oil & Gas Operator | Jun 2025 |
| 20439 | Newman Operating Company | Freer, TX 78357 | Oil & Gas Operator | Jun 2021 |
| 20440 | Newman, John A. | Joplin, MO 64804 | Oil & Gas Operator | Jan 2001 |
| 20441 | Newmo Company | | Oil & Gas Operator | Dec 2001 |
| 20442 | Newmont Oil Company | Houston, TX 77002 | Oil & Gas Operator | Sep 1988 |
| 20443 | Newpark Drilling Fluids LLC | Clinton, OK 73601 | Oil Operator | Dec 2013 |
| 20444 | Newpark Environmental SVCS LLC | Lafayette, LA 70506 | Oil Operator | Jul 2014 |
| 20445 | Newpek, LLC | Irving, TX 75039 | Oil & Gas Operator | Sep 2016 |
| 20446 | Newport Gas Partners LLC | Gillette, WY 82716 | Oil & Gas Operator | May 2025 |
| 20447 | Newport Oil Corporation | Clearwater, FL 33755 | Oil & Gas Operator | Jul 2011 |
| 20448 | Newport Operating, LLC | Burkburnett, TX 76354 | Oil Operator | Jun 2025 |
| 20449 | Newport Operators, LLC | | Oil & Gas Operator | Jan 2019 |
| 20450 | Newstar Energy Of Texas L.L.C. | East Lansing, MI 48826 | Oil & Gas Operator | Mar 2008 |
| 20451 | Newstar Energy USA Inc | Thornville, OH 43076 | Oil & Gas Operator | Aug 2004 |
| 20452 | Newton Corp.,The | Dallas, TX 75251 | Oil & Gas Operator | Jun 2025 |
| 20453 | Newton Steve Drilling | Worland, WY 82401 | Oil Operator | Apr 2001 |
| 20454 | Newton Well Service | New Braunfels, TX 78132 | Oil & Gas Operator | May 2016 |
| 20455 | Newton, Richard R. | Wichita Falls, TX 76309 | Oil & Gas Operator | Nov 1996 |
| 20456 | Newton, W. F. | Conroe, TX 77305 | Oil & Gas Operator | Jun 1994 |
| 20457 | Newton, W. F. Estate Of | Conroe, TX 77305 | Oil & Gas Operator | Jan 2000 |
| 20458 | Newturn Oil Company | Houston, TX 77208 | Oil & Gas Operator | Jan 2004 |
| 20459 | Newwoods Petroleum LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2016 |
| 20460 | Nexco Inc | Oklahoma City, OK 73102-6801 | Oil & Gas Operator | Nov 2013 |
| 20461 | Nexen Oil And Gas U.S.A. Inc. | Calgary, AB T2P 5C1 | Oil & Gas Operator | Feb 2010 |
| 20462 | Nexen Petroleum U.S.A. Inc. | Houston, TX 77024 | Oil & Gas Operator | Jul 2012 |
| 20463 | Nexstreem Corporation | | Oil & Gas Operator | Dec 2020 |
| 20464 | Nextraction Energy Us Inc | Las Vegas, NV 89169 | Oil & Gas Operator | Feb 2018 |
| 20465 | Nexus Resources Corporation | Drumright, OK 74030 | Oil & Gas Operator | Jan 2013 |
| 20466 | Ney Oil Operations | | Oil Operator | Apr 1998 |
| 20467 | Neyer Oil Inc | | Oil & Gas Operator | Nov 1997 |
| 20468 | Neyman, Robert L. & Maureen J. | Batavia, NY 14020 | Gas Operator | Dec 2023 |
| 20469 | Neymeiyer John Oil Co | | Oil Operator | Dec 1998 |
| 20470 | NFC Petroleum Corporation | Tulsa, OK 74121 | Oil & Gas Operator | Jun 1996 |
| 20471 | Nfcda Energy LLC | Edmond, OK 73013 | Oil & Gas Operator | Apr 2025 |
| 20472 | NFR Bear Paw Basin, LLC | Houston, TX 77002 | Oil & Gas Operator | Jan 2013 |
| 20473 | NFR Energy, LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2017 |
| 20474 | NGC Energy Co. | | Oil & Gas Operator | May 1989 |
| 20475 | Ngezi, LCC | Fort Worth, TX 76111 | Oil & Gas Operator | Jun 2025 |
| 20476 | NGL Processing, LLC | | Oil Operator | Jun 2000 |
| 20477 | NGM Noble LTD | Wooster, OH 44691 | Oil & Gas Operator | Dec 2024 |
| 20478 | Ngo Development Corp. | Newark, OH 43055 | Oil & Gas Operator | Dec 2024 |
| 20479 | NGS, Inc. | Borger, TX 79008 | Gas Operator | Jun 2025 |
| 20480 | NGX Company | Roswell, NM 88202 | Oil & Gas Operator | Jul 2008 |
| 20481 | NHH Inc | Oklahoma City, OK 73162-7418 | Oil & Gas Operator | Feb 2002 |
| 20482 | NHRG Inc | Wichita Falls, TX 76308 | Oil Operator | Jun 2025 |
| 20483 | Nicco Operating Co. | | Oil & Gas Operator | May 1990 |
| 20484 | Nicholas Water Service, Inc. | Zenda, KS 67159 | Oil Operator | Mar 2006 |
| 20485 | Nichols Brothers | Abilene, TX 79604 | Oil & Gas Operator | Jun 2025 |
| 20486 | Nichols Fluid Service, Inc. | Liberal, KS 67901 | Oil Operator | Jun 2019 |
| 20487 | Nichols Oil & Gas Corporation | Shreveport, LA 71135 | Oil & Gas Operator | Aug 2003 |
| 20488 | Nichols Oil Co. | Holliday, TX 76366 | Oil & Gas Operator | Jun 2025 |
| 20489 | Nichols Oil Corp. | Holcomb, KS 67846 | Oil Operator | Dec 1994 |
| 20490 | Nichols Operating LLC | Fort Branch, IN 47648 | Oil & Gas Operator | Dec 2021 |
| 20491 | Nichols Water Service Inc | Forgan, OK 73938 | Oil & Gas Operator | May 2018 |
| 20492 | Nichols, Carl E. | Azle, TX 76098 | Oil & Gas Operator | Aug 2004 |
| 20493 | Nichols, Irl. A. Trust B | Duncan, OK 73534 | Oil & Gas Operator | Sep 2000 |
| 20494 | Nichols, John Wesley | Little Elm, TX 75068 | Oil & Gas Operator | Jul 2011 |
| 20495 | Nichols,Edwin S Explorations Inc | Graham, TX 76450 | Oil & Gas Operator | Jun 2025 |
| 20496 | Nick Oil | Abilene, TX 79601 | Oil & Gas Operator | Jun 2025 |
| 20497 | Nickel Road Operating LLC | | Oil & Gas Operator | Sep 2024 |
| 20498 | Nickell & Son Oil & Salvage | Parker, KS 66072 | Oil Operator | Aug 2006 |
| 20499 | Nickell Drilling | | Oil Operator | Jun 2010 |
| 20500 | Nickell Oil Company | Walters, OK 73572 | Oil Operator | Apr 2018 |