| 20101 | MXP Operating LLC | Covington, TX 76093 | Oil & Gas Operator | Feb 2025 |
| 20102 | My Hop Mineral | Moorhead, MN 56560 | Oil & Gas Operator | Jun 2025 |
| 20103 | My Investments Too LLC | | Oil Operator | Mar 2025 |
| 20104 | Myco Energy, Inc. | San Angelo, TX 76906 | Oil & Gas Operator | Dec 2003 |
| 20105 | Myco Industries, Inc. | Artesia, NM 88211 | Oil & Gas Operator | Feb 2015 |
| 20106 | Myco Petroleum | Lovington, NM 88260 | Oil & Gas Operator | Jun 2025 |
| 20107 | Myd, Inc. | Irving, TX 75062 | Oil & Gas Operator | Mar 1998 |
| 20108 | Myers & Hicks Gas Co | | Gas Operator | Dec 2021 |
| 20109 | Myers Drilling And Exploration Inc. | Sedan, KS 67361 | Oil Operator | Aug 2022 |
| 20110 | Myers Drilling Company | Barboursville, WV 25504 | Oil & Gas Operator | Dec 2024 |
| 20111 | Myers Robert W J | | Oil Operator | Jun 1991 |
| 20112 | Myers, A. J. | Jacksboro, TX 76458 | Oil & Gas Operator | Jun 2025 |
| 20113 | Myers, Gus & Annie | Sedan, KS 67361 | Oil Operator | Aug 2017 |
| 20114 | Myers, James B. | Olney, TX 76374 | Oil & Gas Operator | Jun 2025 |
| 20115 | Myers, Robert L | | Oil Operator | Mar 2025 |
| 20116 | Myjo Oil Corporation | Breckenridge, TX 76024 | Oil Operator | Jul 1996 |
| 20117 | Myriad Resources Corporation | Pampa, TX 79066 | Oil & Gas Operator | Jun 2025 |
| 20118 | Mystique Developments | Denver, CO 80202 | Oil & Gas Operator | Dec 1997 |
| 20119 | Mystique Resources Company | Aurora, CO 80016 | Oil & Gas Operator | Feb 2023 |
| 20120 | Myung And Associates, Inc. | Houston, TX 77056 | Oil & Gas Operator | May 2000 |
| 20121 | MZ Operating, Inc | Midland, TX 79701 | Oil & Gas Operator | Apr 1994 |
| 20122 | N & B Enterprise | | Oil Operator | Nov 1994 |
| 20123 | N & B Enterprises, Inc. | Iola, KS 66749 | Oil & Gas Operator | Feb 2025 |
| 20124 | N & B Oil And Gas LLC | Monahans, TX 79756 | Oil & Gas Operator | Jun 2025 |
| 20125 | N & K Oil & Gas Inc | Marietta, OH 45750 | Oil & Gas Operator | Dec 1998 |
| 20126 | N & N Oil | Somerset, OH 43783 | Oil & Gas Operator | Dec 2014 |
| 20127 | N & N Oil LLC | Duncan, OK 73533 | Oil & Gas Operator | May 2023 |
| 20128 | N & O Oil Co. | Imperial, TX 79743 | Oil & Gas Operator | Jun 2025 |
| 20129 | N & P Enterprises | | Oil Operator | May 1997 |
| 20130 | N & W Enterprises, Inc. | Fort Scott, KS 66701 | Oil Operator | Feb 2025 |
| 20131 | N And B Exploration, Inc. | | Oil & Gas Operator | Jun 1993 |
| 20132 | N C B Oil Company | Graham, TX 76450 | Oil & Gas Operator | Jun 2025 |
| 20133 | N Central Casing Pullers, Inc. | | Oil & Gas Operator | May 1994 |
| 20134 | N Dale Nichols | Midland, TX 79703 | Oil & Gas Operator | Jun 2004 |
| 20135 | N Eastern Oh O&G Exp Inc | Cleveland, OH 44106 | Oil & Gas Operator | Dec 1999 |
| 20136 | N H Wheless Oil Company | Shreveport, LA 71101 | Gas Operator | Sep 2002 |
| 20137 | N S P Operating Group LLC | El Campo, TX 77437 | Oil & Gas Operator | Aug 2021 |
| 20138 | N-10 Exploration, LLC | Attica, KS 67009 | Oil & Gas Operator | Feb 2025 |
| 20139 | N-A Energy LLC | Arvada, CO 80005 | Oil Operator | Feb 2025 |
| 20140 | N-B Company Inco | | Oil & Gas Operator | Apr 1992 |
| 20141 | N. A. Energy, Inc. | Houston, TX 77057 | Oil & Gas Operator | Dec 2007 |
| 20142 | N. B. Hunt | | Oil & Gas Operator | May 1981 |
| 20143 | N. E. Loomis | | Oil Operator | Oct 1986 |
| 20144 | N. E. Operating Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2013 |
| 20145 | N. J. Pardue | | Oil & Gas Operator | Jul 1994 |
| 20146 | N. R. Price | | Oil & Gas Operator | Nov 1983 |
| 20147 | N. T. Rutledge Oil Co. | | Oil Operator | Jan 1989 |
| 20148 | N. W. Corporation | | Gas Operator | Jan 1989 |
| 20149 | N.F. Producers, Inc. | Berthoud, CO 80513 | Oil Operator | Feb 2025 |
| 20150 | N.L.S., Inc. | Kimberling City, MO 65686 | Oil & Gas Operator | Aug 2016 |
| 20151 | Nabers, Lynn | Austin, TX 78751 | Gas Operator | Jul 2010 |
| 20152 | Nabob Production Company | Amarillo, TX 79105 | Gas Operator | Dec 1991 |
| 20153 | Nabors Drilling Company, Inc. | | Oil & Gas Operator | Sep 1977 |
| 20154 | Nabors Well Services LTD | Houston, TX 77067-4536 | Oil Operator | Apr 2011 |
| 20155 | Nabors-Johnson Prod Co., Inc. | | Oil & Gas Operator | Dec 2020 |
| 20156 | Nacatosh Gas Incorporated | | Oil & Gas Operator | Aug 2013 |
| 20157 | Naco Production | Midland, TX 79708 | Oil & Gas Operator | Aug 2003 |
| 20158 | Nacogdoches Oil & Gas Inc | Nacogdoches, TX 75963 | Oil & Gas Operator | Jun 2025 |
| 20159 | Nacogdoches Oil & Gas, LLC | Nacogdoches, TX 75961 | Oil & Gas Operator | Dec 2017 |
| 20160 | Nadcf Recovery Group, Inc. | Chapin, SC 29036 | Oil & Gas Operator | Jun 2025 |
| 20161 | Nadel & Gussman-Jetta Oper. Co. | | Oil & Gas Operator | Mar 2012 |
| 20162 | Nadel And Gussman | Tulsa, OK 74103 | Oil & Gas Operator | May 2007 |
| 20163 | Nadel And Gussman Heyco, LLC | Roswell, NM 88202 | Oil & Gas Operator | Dec 2014 |
| 20164 | Nadel And Gussman Permian,L.L.C. | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2025 |
| 20165 | Nadel And Gussman Rockies, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2012 |
| 20166 | Nadel And Gussman Ruston, LLC | | Oil & Gas Operator | Dec 2024 |
| 20167 | Nadel And Gussman, L.L.C. | Tulsa, OK 74119 | Oil & Gas Operator | Jun 2025 |
| 20168 | Nadk, LLC | Orem, UT 84097 | Oil & Gas Operator | Nov 2024 |
| 20169 | Nadsoilco LLC | Chicago, IL 60606 | Oil & Gas Operator | Jun 2025 |
| 20170 | Nae, Inc. | Kerrville, TX 78028 | Oil Operator | Jan 2025 |
| 20171 | Naftex Operating Company | | Oil & Gas Operator | Apr 2025 |
| 20172 | Nagel, Arthur F. & Elaine L. | South Dayton, NY 14138 | Gas Operator | Dec 2023 |
| 20173 | Nahama & Weagant Energy Company | | Oil & Gas Operator | Dec 1997 |
| 20174 | Naifco Oil & Gas LLC | Oklahoma City, OK 73107 | Oil & Gas Operator | Mar 2025 |
| 20175 | Nail Stephen Dba Nail Oil & Gas | Maud, OK 74854 | Oil Operator | Dec 2024 |
| 20176 | Nails Operating Company LLC | Hondo, TX 78861 | Oil Operator | Jun 2025 |
| 20177 | Nairn, Robert | Elkhart, KS 67950 | Gas Operator | Apr 2011 |
| 20178 | Nall Oil & Gas | Mineral Wells, TX 76067 | Oil & Gas Operator | Jun 2025 |
| 20179 | Nally, Joseph L | Uniontown, KY 42461 | Oil & Gas Operator | Dec 2021 |
| 20180 | Nami Resources Company, LLC | | Oil & Gas Operator | Dec 2023 |
| 20181 | Nana Oil & Gas Inc. | | Oil & Gas Operator | Jan 2018 |
| 20182 | Nance Engineering Inc. | Houston, TX 77058 | Oil & Gas Operator | Mar 2002 |
| 20183 | Nance Petroleum Corporation | Billings, MT 59103-7168 | Oil & Gas Operator | Nov 2007 |
| 20184 | Nanco Resources, LLC | | Gas Operator | Dec 2021 |
| 20185 | Nancy Oil & Gas Corp | Tulsa, OK 74101 | Oil Operator | Apr 2020 |
| 20186 | Nancy Wilcox E Qualls | Farmington, NM 87410 | Gas Operator | May 2017 |
| 20187 | Nanke Energy LLC | Westminster, CO 80234 | Oil & Gas Operator | Dec 2024 |
| 20188 | Narbo Farms, LTD. | Midland, TX 79702 | Oil & Gas Operator | Jun 2025 |
| 20189 | Nard Inc | Buffalo, OK 73834-9737 | Oil Operator | Dec 2005 |
| 20190 | Naro Oil Corporation | Dallas, TX 75230-1986 | Oil & Gas Operator | Nov 2003 |
| 20191 | Nasco Petroleum L.L.C. | | Oil & Gas Operator | Mar 2025 |
| 20192 | Nash Oil & Gas, Inc. | Newton, KS 67114 | Oil & Gas Operator | Feb 2025 |
| 20193 | Nashville Associates Inc | | Oil & Gas Operator | Dec 2003 |
| 20194 | Nassau Resources Inc | Denver, CO 80222 | Oil & Gas Operator | Mar 2000 |
| 20195 | Nasser Oil & Gas, Inc. | The Woodlands, TX 77380 | Oil & Gas Operator | Apr 1998 |
| 20196 | Nat. Gas Pipeline Co Of Amer. | | Oil Operator | Dec 2008 |
| 20197 | Nataraja Oil Corporation | Foley, AL 36535 | Oil Operator | Aug 2010 |
| 20198 | Natchez Operating, LLC | | Oil & Gas Operator | Nov 2023 |
| 20199 | Natchez Pipe & Equip. Co., Inc | | Oil Operator | Nov 1981 |
| 20200 | Nathan C. Hale | | Oil & Gas Operator | Jan 2025 |