| 7901 | North American Reserve Corp. | Houston, TX 77060 | Oil & Gas Operator | Oct 2010 |
| 7902 | North American Resources Company | Billings, MT 59101 | Oil & Gas Operator | Dec 2019 |
| 7903 | North American Royalties, Inc. | Chattanooga, TN 37408 | Oil & Gas Operator | Oct 2001 |
| 7904 | North Central Casing Pullers,Inc | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
| 7905 | North Central Oil Corp | Houston, TX 77252 | Oil & Gas Operator | Dec 2005 |
| 7906 | North Central Texas Energy LLC | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 7907 | North Country Energy LLC | Amarillo, TX 79159 | Oil & Gas Operator | Feb 2026 |
| 7908 | North Fork Operating LP | Mustang, OK 73064 | Oil & Gas Operator | Feb 2026 |
| 7909 | North Lake Resources LLC | Oklahoma City, OK 73132 | Oil & Gas Operator | Feb 2026 |
| 7910 | North Operating Company | Canton, TX 75103 | Oil & Gas Operator | Feb 2026 |
| 7911 | North Padre Explor. Venture LLC | Corpus Chrsti, TX 78473 | Oil & Gas Operator | May 2004 |
| 7912 | North Ridge Corporation | Duncanville, TX 75137 | Oil & Gas Operator | Feb 2026 |
| 7913 | North Shore Energy, L.L.C. | Austin, TX 78750 | Oil & Gas Operator | Feb 2026 |
| 7914 | North South Oil, LLC | Luling, TX 78648 | Oil Operator | Feb 2026 |
| 7915 | North Star Energy, Inc. | Strawn, TX 76475 | Oil & Gas Operator | Jan 2010 |
| 7916 | North Star Petroleum Corp. | San Antonio, TX 78209 | Oil & Gas Operator | Oct 1993 |
| 7917 | North Texas Energy,Inc. | Dallas, TX 75252 | Oil Operator | Feb 2026 |
| 7918 | North Texas Engineering | Midland, TX 79710 | Oil & Gas Operator | Nov 2002 |
| 7919 | North Texas Llano Operating Corp | Dallas, TX 75225 | Oil & Gas Operator | Feb 2026 |
| 7920 | North Texas Oil & Gas, LLC | Edmond, OK 73013 | Oil & Gas Operator | Feb 2026 |
| 7921 | North Texas Plugging, LLC | Denton, TX 76205 | Oil & Gas Operator | Feb 2026 |
| 7922 | North Texas Pure Gold, LLC | Graham, TX 76450 | Oil Operator | Sep 2008 |
| 7923 | Northamerican Service Group | Katy, TX 77449 | Oil & Gas Operator | Feb 2026 |
| 7924 | Northcutt Production | Bangs, TX 76823 | Oil & Gas Operator | Feb 2026 |
| 7925 | Northeast Loop Gas Company, L.P. | Dallas, TX 75225 | Gas Operator | Jan 2003 |
| 7926 | Northeast Texas Production Co. | Marshall, TX 75671 | Oil & Gas Operator | Feb 2026 |
| 7927 | Northern Oil And Gas, Inc. | Borger, TX 79007 | Oil & Gas Operator | Feb 2026 |
| 7928 | Northern Pacific Oil And Gas Incorporated | Houston, TX 77024 | Oil & Gas Operator | Dec 2022 |
| 7929 | Northfield Enterprises | Bryan, TX 77805 | Oil & Gas Operator | Dec 1993 |
| 7930 | Northfield Enterprises, Inc. | Bryan, TX 77802 | Oil & Gas Operator | Feb 2026 |
| 7931 | Northfork Exploration LLC | Electra, TX 76360 | Oil Operator | Feb 2026 |
| 7932 | Northland Operating Company | Dallas, TX 75240 | Oil & Gas Operator | Apr 2003 |
| 7933 | Northland Petroleum, Inc. | Houston, TX 77043 | Oil Operator | Dec 2018 |
| 7934 | Northland Petroleum, LLC | Houston, TX 77043 | Oil Operator | Feb 2026 |
| 7935 | Northridge Exploration, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 2026 |
| 7936 | Northridge Oil Company | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 2026 |
| 7937 | Northstar Gulfsands, LLC | Houston, TX 77046 | Oil & Gas Operator | Mar 2006 |
| 7938 | Northstar Operating Company | Midland, TX 79702 | Oil & Gas Operator | Jun 2024 |
| 7939 | Northstar Resources, LLC | Houston, TX 77018 | Oil & Gas Operator | Feb 2026 |
| 7940 | Northwest Airport Management, LP | Spring, TX 77379 | Gas Operator | Feb 2026 |
| 7941 | Northwest Oil Company | Dallas, TX 75204 | Oil & Gas Operator | Jun 2014 |
| 7942 | Northwind Exploration, Inc. | Houston, TX 77002 | Oil & Gas Operator | Aug 1995 |
| 7943 | Norton Drilling Co. | Levelland, TX 79336 | Oil & Gas Operator | Nov 2001 |
| 7944 | Norvel Douglas Oil Inc. | H SPG NTL PK, AR 71909 | Oil Operator | Oct 2025 |
| 7945 | Norwood, A. N., Inc. | Midland, TX 79702 | Oil & Gas Operator | Feb 1997 |
| 7946 | Nosivad Oil, Inc. | Clyde, TX 79510 | Oil & Gas Operator | Feb 2026 |
| 7947 | Notting Hill Energy LLC | Fort Worth, TX 76101 | Oil & Gas Operator | Feb 2026 |
| 7948 | Novco Operating Company | Novice, TX 79538 | Oil & Gas Operator | Feb 2026 |
| 7949 | Novo Energy Resources | Houston, TX 77006 | Oil & Gas Operator | Feb 2026 |
| 7950 | Novo Exploration Corporation | Hurst, TX 76053 | Oil & Gas Operator | Jun 2020 |
| 7951 | Novus Oil & Gas, LP | Houston, TX 77042 | Oil & Gas Operator | Nov 2005 |
| 7952 | Now Development Co., Inc. | Tyler, TX 75702 | Oil & Gas Operator | Dec 2017 |
| 7953 | Noxxe Oil And Gas, LLC | Houston, TX 77269 | Oil & Gas Operator | Feb 2026 |
| 7954 | NRG Assets Management, LLC | Houston, TX 77057 | Oil & Gas Operator | Nov 2016 |
| 7955 | NRG Resources, Inc. | Houston, TX 77057 | Oil & Gas Operator | Jun 1987 |
| 7956 | NRPC Operating, LLC | Dallas, TX 75206 | Oil Operator | Feb 2012 |
| 7957 | NT Minerals, LLC | Tulsa, OK 74172 | Oil & Gas Operator | Feb 2026 |
| 7958 | Nueces Minerals Company | Dallas, TX 75251 | Oil & Gas Operator | May 2021 |
| 7959 | Nueces Oil Company | George West, TX 78022 | Oil & Gas Operator | Mar 2008 |
| 7960 | Nueces Petroleum Corporation | Sugar Land, TX 77496 | Oil Operator | Feb 2026 |
| 7961 | Nueces Reserves, Inc. | Houston, TX 77019 | Oil & Gas Operator | Oct 2002 |
| 7962 | Nuevo Energy Company | Houston, TX 77002 | Oil & Gas Operator | Dec 2002 |
| 7963 | Nuevo Texas Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2004 |
| 7964 | Null, W. M. & San Patricio Corp. | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Aug 1994 |
| 7965 | Null, W.M. Operations, Inc. | Corpus Chrsti, TX 78475 | Oil & Gas Operator | Jun 2002 |
| 7966 | Numar Oil And Gas Corporation | Sante Fe, NM 87502 | Oil & Gas Operator | Feb 2026 |
| 7967 | Nupower Energy, LLC | Houston, TX 77058 | Oil & Gas Operator | Feb 2026 |
| 7968 | Nutek Oil Inc | San Antonio, TX 78254 | Oil & Gas Operator | Feb 2006 |
| 7969 | NWG Operating LLC | Canyon, TX 79015 | Oil & Gas Operator | Feb 2026 |
| 7970 | Nye Exploration & Prod, L.L.C. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Feb 2026 |
| 7971 | Nytex Petroleum, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2014 |
| 7972 | Nytex, L.L.C. | Edmond, OK 73083 | Oil & Gas Operator | Feb 2006 |
| 7973 | NZ Operating Company Inc. | Houston, TX 77069 | Oil & Gas Operator | Feb 2026 |
| 7974 | O & G Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Oct 1996 |
| 7975 | O & O Operators, LLC. | Fate, TX 75132 | Oil & Gas Operator | Feb 2026 |
| 7976 | O Hill Enterprises, Inc. | La Grange, TX 78945 | Oil & Gas Operator | Jan 2014 |
| 7977 | O S & S Oil Company | Electra, TX 76360 | Oil & Gas Operator | Jan 2018 |
| 7978 | O&G Investments Inc. | Runge, TX 78151 | Oil & Gas Operator | Feb 2003 |
| 7979 | O'Bar Operating Co., Inc. | Longview, TX 75604 | Oil & Gas Operator | Feb 2026 |
| 7980 | O'Benco, Inc. | Shreveport, LA 71136 | Oil & Gas Operator | Feb 2026 |
| 7981 | O'Blue Corp. | Kerrville, TX 78028 | Oil & Gas Operator | Mar 1998 |
| 7982 | O'Brien Energy Company | Shreveport, LA 71136 | Oil & Gas Operator | Sep 2019 |
| 7983 | O'Brien Energy Resources Corp | Portsmouth, NH 03801 | Oil & Gas Operator | Feb 2026 |
| 7984 | O'Brien Operating Company | Shreveport, LA 71164 | Oil & Gas Operator | Dec 2004 |
| 7985 | O'Brien Resources LLC | Shreveport, LA 71136 | Oil Operator | Nov 2017 |
| 7986 | O'Brien, George H. Jr. | Midland, TX 79701 | Oil & Gas Operator | Jun 1994 |
| 7987 | O'Connor & Hewitt, LTD. | Victoria, TX 77901 | Oil & Gas Operator | Jun 1998 |
| 7988 | O'Connor Energy Management, LLC | Victoria, TX 77902 | Oil Operator | Feb 2026 |
| 7989 | O'Dell, Mitchell | Cross Plains, TX 76443 | Oil & Gas Operator | Feb 2026 |
| 7990 | O'Donohoe, Jack | Wichita Falls, TX 76301 | Oil & Gas Operator | May 2002 |
| 7991 | O'Leary'S Oil & Gas Inc. | Arcadia, FL 34266 | Oil & Gas Operator | May 2008 |
| 7992 | O'Neal Cattle Co. | Pampa, TX 79066 | Gas Operator | Feb 2026 |
| 7993 | O'Neal Oil & Gas Co | Fort Worth, TX 76107-1479 | Oil & Gas Operator | Dec 2025 |
| 7994 | O'Neal Oil Company | Nocona, TX 76255 | Oil & Gas Operator | Feb 2026 |
| 7995 | O'Neal Operating Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 1999 |
| 7996 | O'Neal, Lindell | Nocona, TX 76255 | Oil & Gas Operator | Nov 2025 |
| 7997 | O'Neil, Pat | Wichita Falls, TX 76308 | Oil & Gas Operator | Nov 2005 |
| 7998 | O'Neill Properties, LTD. | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 7999 | O'Ryan Oil And Gas | Odessa, TX 79768 | Oil & Gas Operator | Feb 2026 |
| 8000 | O'Sand Production, Inc. | Tomball, TX 77377 | Oil & Gas Operator | Aug 2003 |