| 21001 | New Atlantis II, LLC | Big Spring, TX 79721 | Oil & Gas Operator | Feb 2026 |
| 21002 | New Atlantis Oil & Expl., LLC | Big Spring, TX 79721 | Oil & Gas Operator | Feb 2012 |
| 21003 | New Beginning | Seguin, TX 78156 | Oil Operator | Jun 2016 |
| 21004 | New Bremen Corporation | Austin, TX 78701 | Oil & Gas Operator | Sep 1999 |
| 21005 | New Century Energy Inc | MC Donald, PA 15057-2163 | Oil & Gas Operator | Dec 2021 |
| 21006 | New Century Exploration, Inc. | Spring, TX 77379 | Oil & Gas Operator | Feb 2026 |
| 21007 | New Century Operating, LLC | Spring, TX 77379 | Oil Operator | Apr 2021 |
| 21008 | New Century Petroleum Corp | Oklahoma City, OK 73105 | Oil & Gas Operator | May 2013 |
| 21009 | New Chaparral Petroleum Inc. | | Oil & Gas Operator | Dec 2005 |
| 21010 | New Dawn Energy, LLC | Houston, TX 77077 | Gas Operator | Feb 2026 |
| 21011 | New Dominion LLC | Tulsa, OK 74119-3220 | Oil & Gas Operator | Dec 2025 |
| 21012 | New Donna Lee Oil Company | Bakersfield, CA 93308 | Oil & Gas Operator | Jul 2025 |
| 21013 | New Energy Corporation | Rancho Santa Fe, CA 92067-1990 | Oil & Gas Operator | Jul 2024 |
| 21014 | New Era Gas Co Inc | Bull Shoals, AR 72619-0130 | Gas Operator | Mar 2004 |
| 21015 | New Era International | Graham, TX 76450 | Oil & Gas Operator | Sep 2017 |
| 21016 | New Era Oil/Preferred Energy | | Oil & Gas Operator | Sep 1993 |
| 21017 | New Era Petroleum Inc | Sheridan, WY 82801 | Oil Operator | Dec 2025 |
| 21018 | New Generation Oil Inc | Russell, KS 67665 | Oil Operator | Feb 2002 |
| 21019 | New Gulf Operating LLC | Tulsa, OK 74133 | Oil Operator | Sep 2023 |
| 21020 | New Gulf Resources, LLC | Tulsa, OK 74133 | Oil & Gas Operator | May 2018 |
| 21021 | New Height Energy, LLC | Houston, TX 77063 | Oil & Gas Operator | Feb 2026 |
| 21022 | New Horizon Exploration, Inc. | Richardson, TX 75081 | Oil & Gas Operator | Jun 2006 |
| 21023 | New Horizon Investments LTD. | George West, TX 78022 | Oil & Gas Operator | Feb 2026 |
| 21024 | New Horizon Resources LLC | Houston, TX 77057 | Oil & Gas Operator | Feb 2026 |
| 21025 | New Lift Inc | Nowata, OK 74048-0245 | Oil & Gas Operator | Mar 2015 |
| 21026 | New London Oil I | | Oil Operator | Dec 1996 |
| 21027 | New London Oil Inc. | Houston, TX 77253 | Oil & Gas Operator | Aug 2002 |
| 21028 | New Millennium Resources, Inc. | | Oil & Gas Operator | Jan 2026 |
| 21029 | New Ora Oil, Inc. | | Oil Operator | Aug 1984 |
| 21030 | New Orleans Public Service Inc | | Oil Operator | Dec 1994 |
| 21031 | New River Energy Corporation | | Gas Operator | Dec 2017 |
| 21032 | New Source Oil & Gas, LLC | Victoria, TX 77903 | Oil & Gas Operator | Feb 2026 |
| 21033 | New Tex Oil Co | Hobbs, NM 88240 | Oil & Gas Operator | May 2016 |
| 21034 | New Voyage Enterprises LLC | San Antonio, TX 78278 | Oil Operator | Feb 2026 |
| 21035 | New Western Operating, LLC | Irvine, CA 92618 | Oil & Gas Operator | Dec 2019 |
| 21036 | New York Gas And Oil Company, Inc. | | Gas Operator | Dec 2014 |
| 21037 | New York Natural Gas Corp | Pittsburgh, PA 15222-1402 | Gas Operator | Dec 1990 |
| 21038 | New York Petroleum Corp. | | Oil & Gas Operator | Nov 1982 |
| 21039 | New-Lonamen | | Oil & Gas Operator | Dec 2008 |
| 21040 | New-Park, Inc. | | Oil Operator | Sep 1990 |
| 21041 | New-Tex Operating II, LLC | Dallas, TX 75201 | Oil & Gas Operator | Feb 2026 |
| 21042 | New-Tex Operating, LLC | Dallas, TX 75201 | Oil & Gas Operator | Feb 2026 |
| 21043 | Neward Corporation | FT. Worth, TX 76102 | Oil & Gas Operator | Dec 1997 |
| 21044 | Newark E&P Operating, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2017 |
| 21045 | Newark Energy LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2011 |
| 21046 | Newberry, Charles D Inc | Campbellsvlle, KY 42719 | Oil Operator | Feb 2026 |
| 21047 | Newbridge Resources, LLC | Houston, TX 77056 | Oil & Gas Operator | Dec 2025 |
| 21048 | Newcastle Oil & Gas Inc | | Oil Operator | Dec 1988 |
| 21049 | Newcastle Resources, LLC | Tyler, TX 75711 | Oil & Gas Operator | Aug 2015 |
| 21050 | Newco Inc | Oklahoma City, OK 73177 | Oil Operator | Aug 1999 |
| 21051 | Newco Oil And Gas, LLC | McKinney, TX 75070 | Oil Operator | Feb 2026 |
| 21052 | Newell Energy LTD | | Gas Operator | Nov 2021 |
| 21053 | Newell Oil And Gas LLC | Shawnee, OK 74801-5783 | Oil & Gas Operator | Nov 2025 |
| 21054 | Newfield Expl. Mid-Con. Inc | Tulsa, OK 74172 | Oil & Gas Operator | Jan 2015 |
| 21055 | Newfield Exploration Company | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2017 |
| 21056 | Newfield Exploration Mid-Continent, Inc | Tulsa, OK 74119 | Oil & Gas Operator | Apr 2011 |
| 21057 | Newfield Production Company | The Woodlands, TX 77380-2764 | Oil & Gas Operator | Jul 2022 |
| 21058 | Newgulf Petroleum, LLC | San Antonio, TX 78209 | Oil & Gas Operator | Sep 2017 |
| 21059 | Newhaven Operating Inc | | Oil & Gas Operator | Dec 1998 |
| 21060 | Newkumet Exploration, Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 2020 |
| 21061 | Newland Farm | Freedom, NY 14065 | Gas Operator | Dec 2024 |
| 21062 | Newland Oil Comp | | Oil Operator | Sep 1996 |
| 21063 | Newman & Scott | Duncan, OK 73534 | Oil & Gas Operator | Mar 2024 |
| 21064 | Newman Bros Drilling | | Oil & Gas Operator | Apr 2004 |
| 21065 | Newman Corporation | Harleton, TX 75651 | Oil & Gas Operator | Aug 2024 |
| 21066 | Newman Cubed, Inc. | Fort Worth, TX 76147 | Oil & Gas Operator | Feb 2026 |
| 21067 | Newman Operating Company | Freer, TX 78357 | Oil & Gas Operator | Jun 2021 |
| 21068 | Newman, John A. | Joplin, MO 64804 | Oil & Gas Operator | Jan 2001 |
| 21069 | Newmo Company | | Oil & Gas Operator | Dec 2001 |
| 21070 | Newmont Oil Co. & Colorado | | Oil & Gas Operator | Mar 1978 |
| 21071 | Newmont Oil Company | | Oil & Gas Operator | Sep 1988 |
| 21072 | Newpark Drilling Fluids LLC | Clinton, OK 73601 | Oil Operator | Dec 2013 |
| 21073 | Newpark Environmental SVCS LLC | Lafayette, LA 70506 | Oil Operator | Jul 2014 |
| 21074 | Newpek, LLC | Irving, TX 75039 | Oil & Gas Operator | Sep 2016 |
| 21075 | Newport Gas Partners LLC | Gillette, WY 82716 | Oil & Gas Operator | Oct 2025 |
| 21076 | Newport Oil Corporation | Clearwater, FL 33755 | Oil & Gas Operator | Jul 2011 |
| 21077 | Newport Operating, LLC | Burkburnett, TX 76354 | Oil Operator | Feb 2026 |
| 21078 | Newport Operators, LLC | | Oil & Gas Operator | Jan 2019 |
| 21079 | Newstar Energy Of Texas L.L.C. | East Lansing, MI 48826 | Oil & Gas Operator | Mar 2008 |
| 21080 | Newstar Energy USA Inc | Thornville, OH 43076 | Oil & Gas Operator | Aug 2004 |
| 21081 | Newton Corp.,The | Dallas, TX 75251 | Oil & Gas Operator | Feb 2026 |
| 21082 | Newton Steve Drilling | Worland, WY 82401 | Oil Operator | Apr 2001 |
| 21083 | Newton Well Service | New Braunfels, TX 78132 | Oil & Gas Operator | May 2016 |
| 21084 | Newton, Richard R. | Wichita Falls, TX 76309 | Oil & Gas Operator | Nov 1996 |
| 21085 | Newton, W. F. | Conroe, TX 77305 | Oil & Gas Operator | Jun 1994 |
| 21086 | Newton, W. F. Estate Of | Conroe, TX 77305 | Oil & Gas Operator | Jan 2000 |
| 21087 | Newturn Oil Company | Houston, TX 77208 | Oil & Gas Operator | Jan 2004 |
| 21088 | Newwoods Petroleum LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2016 |
| 21089 | Nexco Inc | Oklahoma City, OK 73102-6801 | Oil & Gas Operator | Nov 2013 |
| 21090 | Nexen Oil And Gas U.S.A. Inc. | Calgary, AB T2P 5C1 | Oil & Gas Operator | Feb 2010 |
| 21091 | Nexen Petroleum U.S.A. Inc. | Houston, TX 77024 | Oil & Gas Operator | Jul 2012 |
| 21092 | Nexstreem Corporation | | Oil & Gas Operator | Dec 2020 |
| 21093 | Nextgen Petroleum LLC | Lubbock, TX 79407 | Oil Operator | Dec 2025 |
| 21094 | Nextraction Energy Us Inc | Las Vegas, NV 89169 | Oil & Gas Operator | Feb 2018 |
| 21095 | Nexus Resources Corporation | Drumright, OK 74030 | Oil & Gas Operator | Jan 2013 |
| 21096 | Ney Oil Operations | | Oil Operator | Apr 1998 |
| 21097 | Neyer Oil Inc | | Oil Operator | Nov 1997 |
| 21098 | Neyman, Robert L. & Maureen J. | Batavia, NY 14020 | Gas Operator | Dec 2024 |
| 21099 | Neymeiyer John Oil Co | | Oil Operator | Dec 1998 |
| 21100 | NFC Petroleum Corporation | Tulsa, OK 74121 | Oil & Gas Operator | Jun 1996 |