| 101 | New-Tex Operating, LLC | Dallas, TX 75201 | Oil & Gas Operator | Sep 2025 |
| 102 | Newark E&P Operating, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2017 |
| 103 | Newark Energy LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2011 |
| 104 | Newberry, Charles D Inc | Campbellsvlle, KY 42719 | Oil Operator | Sep 2025 |
| 105 | Newbridge Resources, LLC | Houston, TX 77056 | Oil & Gas Operator | Jul 2025 |
| 106 | Newcastle Resources, LLC | Tyler, TX 75711 | Oil & Gas Operator | Aug 2015 |
| 107 | Newco Oil And Gas, LLC | McKinney, TX 75070 | Oil Operator | Sep 2025 |
| 108 | Newfield Expl. Mid-Con. Inc | Tulsa, OK 74172 | Oil & Gas Operator | Jan 2015 |
| 109 | Newfield Exploration Company | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2017 |
| 110 | Newgulf Petroleum, LLC | San Antonio, TX 78209 | Oil & Gas Operator | Sep 2017 |
| 111 | Newkumet Exploration, Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 2020 |
| 112 | Newman & Scott | Duncan, OK 73534 | Oil & Gas Operator | Mar 2024 |
| 113 | Newman Corporation | Harleton, TX 75651 | Oil & Gas Operator | Aug 2024 |
| 114 | Newman Cubed, Inc. | Fort Worth, TX 76147 | Oil & Gas Operator | Sep 2025 |
| 115 | Newman Operating Company | Freer, TX 78357 | Oil & Gas Operator | Jun 2021 |
| 116 | Newman, John A. | Joplin, MO 64804 | Oil & Gas Operator | Jan 2001 |
| 117 | Newpark Environmental SVCS LLC | Lafayette, LA 70506 | Oil Operator | Jul 2014 |
| 118 | Newpek, LLC | Irving, TX 75039 | Oil & Gas Operator | Sep 2016 |
| 119 | Newport Operating, LLC | Burkburnett, TX 76354 | Oil Operator | Sep 2025 |
| 120 | Newstar Energy Of Texas L.L.C. | East Lansing, MI 48826 | Oil & Gas Operator | Mar 2008 |
| 121 | Newton Corp.,The | Dallas, TX 75251 | Oil & Gas Operator | Sep 2025 |
| 122 | Newton Well Service | New Braunfels, TX 78132 | Oil & Gas Operator | May 2016 |
| 123 | Newton, Richard R. | Wichita Falls, TX 76309 | Oil & Gas Operator | Nov 1996 |
| 124 | Newton, W. F. | Conroe, TX 77305 | Oil & Gas Operator | Jun 1994 |
| 125 | Newton, W. F. Estate Of | Conroe, TX 77305 | Oil & Gas Operator | Jan 2000 |
| 126 | Newturn Oil Company | Houston, TX 77208 | Oil & Gas Operator | Jan 2004 |
| 127 | Nexen Petroleum U.S.A. Inc. | Houston, TX 77024 | Oil & Gas Operator | Jul 2012 |
| 128 | NFR Energy, LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2017 |
| 129 | Ngezi, LCC | Fort Worth, TX 76111 | Oil & Gas Operator | Sep 2025 |
| 130 | NHRG Inc | Wichita Falls, TX 76308 | Oil Operator | Sep 2025 |
| 131 | Nichols Brothers | Abilene, TX 79604 | Oil & Gas Operator | Sep 2025 |
| 132 | Nichols Oil & Gas Corporation | Shreveport, LA 71135 | Oil & Gas Operator | Aug 2003 |
| 133 | Nichols Oil Co. | Holliday, TX 76366 | Oil & Gas Operator | Sep 2025 |
| 134 | Nichols, Carl E. | Azle, TX 76098 | Oil & Gas Operator | Aug 2004 |
| 135 | Nichols, Irl. A. Trust B | Duncan, OK 73534 | Oil & Gas Operator | Sep 2000 |
| 136 | Nichols, John Wesley | Little Elm, TX 75068 | Oil & Gas Operator | Jul 2011 |
| 137 | Nichols,Edwin S Explorations Inc | Graham, TX 76450 | Oil & Gas Operator | Sep 2025 |
| 138 | Nick Oil | Abilene, TX 79601 | Oil & Gas Operator | Sep 2025 |
| 139 | Nicki T Oil & Gas LLC | Midland, TX 79711 | Oil Operator | Sep 2025 |
| 140 | Nicklos Oil & Gas Co. | Dallas, TX 75201 | Oil & Gas Operator | Nov 1986 |
| 141 | Nicor Exploration Company | Houston, TX 77002 | Oil & Gas Operator | Jun 1993 |
| 142 | Nicor Production Company | Houston, TX 77002 | Oil & Gas Operator | May 1993 |
| 143 | Niedorf, Patrick Stephen | San Antonio, TX 78239 | Oil Operator | Jul 2001 |
| 144 | Nielson & Associates Inc | Cody, WY 82414 | Oil & Gas Operator | Feb 2016 |
| 145 | Nijean, Inc. | Shawnee, OK 74802 | Oil & Gas Operator | Feb 2012 |
| 146 | Nimrod Petroleum Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Dec 2002 |
| 147 | Nineveh Corp. | Dallas, TX 75208 | Oil & Gas Operator | Sep 2025 |
| 148 | Nisrol, Inc. | Pampa, TX 79065 | Oil & Gas Operator | Sep 2018 |
| 149 | Nitro Oil & Gas, LLC | Cuero, TX 77954 | Oil & Gas Operator | Sep 2025 |
| 150 | Nitro-Lift/Ok Manufacturing, LLC | | Oil Operator | Sep 2025 |
| 151 | Nitschke, Dan E. | Henrietta, TX 76365 | Oil & Gas Operator | Sep 2025 |
| 152 | Nix, Tommy | Graham, TX 76450 | Oil & Gas Operator | Mar 2008 |
| 153 | Nizen, Stanley | FT Stockton, TX 79735 | Oil & Gas Operator | May 2002 |
| 154 | Nja Operating LLC | Perryton, TX 79070 | Oil & Gas Operator | Sep 2025 |
| 155 | NJL Oil Co. | Electra, TX 76360 | Oil & Gas Operator | Feb 2007 |
| 156 | NKC Energy, LLC | Bruceville, TX 76630 | Oil Operator | Sep 2025 |
| 157 | NM&O Operating Company | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2025 |
| 158 | NMR Energy LLC | Houston, TX 77063 | Oil & Gas Operator | Sep 2025 |
| 159 | Nobel Petroleum USA Inc. | League City, TX 77573 | Oil Operator | Sep 2025 |
| 160 | Noble & Cantrell Expl. Co., Inc. | Winnsboro, TX 75494 | Oil & Gas Operator | Aug 2006 |
| 161 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Sep 2025 |
| 162 | Noble Energy Production Inc | Houston, TX 77067 | Oil & Gas Operator | Sep 2025 |
| 163 | Noble Exploration, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Aug 2003 |
| 164 | Noble Operating, LLC | Flower Mound, TX 75028 | Oil & Gas Operator | Sep 2013 |
| 165 | Noble Producing Company Inc. | Dallas, TX 75244 | Oil & Gas Operator | Mar 1996 |
| 166 | Nobleson Operating, Inc. | Dallas, TX 75244 | Oil & Gas Operator | Jun 1996 |
| 167 | Noc | Iowa Park, TX 76367 | Oil & Gas Operator | Dec 2020 |
| 168 | Nodding Donkey Production | Pampa, TX 79065 | Oil & Gas Operator | Sep 2025 |
| 169 | Noe, T. C. Oil Acct. | Selman City, TX 75689 | Oil & Gas Operator | May 1996 |
| 170 | Noel Operating, Inc. | Huntsville, TX 77340 | Oil & Gas Operator | Oct 2000 |
| 171 | Noex, L.L.C. | Houston, TX 77057 | Oil & Gas Operator | Apr 1998 |
| 172 | Nog Production & Operating LLC | Goliad, TX 77963 | Oil & Gas Operator | Sep 2025 |
| 173 | Nokota Energy Corporation | Bakersfield, CA 93313 | Oil Operator | Sep 2025 |
| 174 | Nokusu, LTD. | Dallas, TX 75231 | Oil & Gas Operator | Sep 2008 |
| 175 | Nolen Oil & Gas | Beeville, TX 78102 | Oil & Gas Operator | Sep 2025 |
| 176 | Nolen, Charles R. | San Angelo, TX 76904 | Oil & Gas Operator | Dec 2006 |
| 177 | Nolte, Mike E. | Longview, TX 75606 | Oil & Gas Operator | Jun 1995 |
| 178 | Nolte, Mike E., Inc. | Longview, TX 75606 | Oil & Gas Operator | Feb 2006 |
| 179 | Nolteco, Inc. | Longview, TX 75606 | Oil & Gas Operator | Sep 2025 |
| 180 | Nomeco Oil & Gas Co. | Jackson, MI 49204 | Oil & Gas Operator | Dec 1994 |
| 181 | Noonday Exploration, LLC | Tyler, TX 75711 | Oil & Gas Operator | Apr 2024 |
| 182 | Nora Company | Pampa, TX 79065 | Oil & Gas Operator | Sep 2025 |
| 183 | Noram Operating Company | Houston, TX 77002 | Oil Operator | Oct 1999 |
| 184 | Noramco Production, LLC | Midland, TX 79710 | Oil & Gas Operator | Jan 2023 |
| 185 | Norcen Explorer, Inc. | Houston, TX 77079 | Oil & Gas Operator | May 1998 |
| 186 | Nordan & Company | San Antonio, TX 78205 | Oil & Gas Operator | Jun 2004 |
| 187 | Nordan Oil & Gas Corporation | Abilene, TX 79604 | Oil & Gas Operator | Feb 2018 |
| 188 | Nordan Trust, The | San Antonio, TX 78205 | Oil & Gas Operator | Nov 2003 |
| 189 | Nordstrand Engineering Inc | Houston, TX 77019 | Oil & Gas Operator | Sep 2025 |
| 190 | Norgas Energy | Lakehills, TX 78063 | Oil & Gas Operator | Sep 2025 |
| 191 | Norman Oil Corporation | Abilene, TX 79608 | Oil & Gas Operator | Mar 2000 |
| 192 | Norman, C. D. | Irving, TX 75015 | Oil & Gas Operator | Mar 2008 |
| 193 | Nortex Energy, Inc. | Muenster, TX 76252 | Oil Operator | Sep 2025 |
| 194 | Nortex Production Co., LLC | Wichita Falls, TX 76310 | Oil Operator | Sep 2025 |
| 195 | North American Drilling Corp | Plano, TX 75093 | Oil & Gas Operator | Sep 2025 |
| 196 | North American Exploration Co. | Abilene, TX 79602 | Oil & Gas Operator | Apr 1998 |
| 197 | North American Reserve Corp. | Houston, TX 77060 | Oil & Gas Operator | Oct 2010 |
| 198 | North American Resources Company | Billings, MT 59101 | Oil & Gas Operator | Dec 2019 |
| 199 | North American Royalties, Inc. | Chattanooga, TN 37408 | Oil & Gas Operator | Oct 2001 |
| 200 | North Central Casing Pullers,Inc | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |