| 3101 | Murray Oil And Gas LLC | Greensburg, KS 67054 | Oil & Gas Operator | Sep 2025 |
| 3102 | Musgrove Casey O | | Oil Operator | Oct 1993 |
| 3103 | Musgrove Casey Oil | Ponca City, OK 74602-0391 | Oil & Gas Operator | Jun 2017 |
| 3104 | Musgrove Energy Inc | Ponca City, OK 74602 | Oil & Gas Operator | Sep 2025 |
| 3105 | Musgrove Petrole | | Oil & Gas Operator | Dec 1996 |
| 3106 | Musgrove Produci | | Oil Operator | May 1989 |
| 3107 | Musgrove Producing | El Dorado, KS 67042 | Oil Operator | Apr 2001 |
| 3108 | Mustang Drilling | | Oil & Gas Operator | Nov 1996 |
| 3109 | Mustang Drilling, Inc. | Henderson, TX 75653 | Oil & Gas Operator | Aug 2024 |
| 3110 | Mustang Energy Corporation | Hays, KS 67601 | Oil Operator | Sep 2025 |
| 3111 | Mustang Fuel Cor | | Oil & Gas Operator | Dec 1990 |
| 3112 | Mustang Fuel Corporation | Oklahoma City, OK 73114 | Oil & Gas Operator | Dec 2025 |
| 3113 | Mustang Oil & Gas Corporation | Wichita Falls, TX 76308 | Oil & Gas Operator | Jul 2021 |
| 3114 | MV Purchasing LLC | Wichita, KS 67206 | Oil & Gas Operator | Dec 2019 |
| 3115 | MVRC Partnership | Russell, KS 67655 | Oil Operator | Jan 1992 |
| 3116 | MW Oil, Inc | | Oil & Gas Operator | Sep 2025 |
| 3117 | MWK Petroleum, LLC | Augusta, KS 67010 | Oil Operator | Sep 2025 |
| 3118 | Myers Drilling And Exploration Inc. | Sedan, KS 67361 | Oil Operator | Aug 2022 |
| 3119 | Myers Robert W J | | Oil Operator | Jun 1991 |
| 3120 | Myers, Bobby | Cherryvale, KS 67335 | Oil & Gas Operator | Jun 2020 |
| 3121 | Myers, Gus & Annie | Sedan, KS 67361 | Oil Operator | Aug 2017 |
| 3122 | N & B Enterprise | | Oil Operator | Nov 1994 |
| 3123 | N & B Enterprises, Inc. | Iola, KS 66749 | Oil & Gas Operator | Sep 2025 |
| 3124 | N & P Enterprises | | Oil Operator | May 1997 |
| 3125 | N & W Enterprises, Inc. | Fort Scott, KS 66701 | Oil Operator | Sep 2025 |
| 3126 | N H Wheless Oil Company | Shreveport, LA 71101 | Gas Operator | Sep 2002 |
| 3127 | N L S Inc | Kimberling City, MO 65686 | Oil & Gas Operator | Aug 2016 |
| 3128 | N-10 Exploration, LLC | Attica, KS 67009 | Oil & Gas Operator | Sep 2025 |
| 3129 | N-A Energy LLC | Arvada, CO 80005 | Oil Operator | Sep 2025 |
| 3130 | N-B Company Inco | | Oil & Gas Operator | Apr 1992 |
| 3131 | N.F. Producers, Inc. | Berthoud, CO 80513 | Oil Operator | Sep 2025 |
| 3132 | Nacogdoches Oil & Gas, LLC | Nacogdoches, TX 75961 | Oil & Gas Operator | Dec 2017 |
| 3133 | Nadel & Gussman | Tulsa, OK 74103 | Oil & Gas Operator | May 2007 |
| 3134 | Nadel And Gussman LLC | Tulsa, OK 74119 | Oil & Gas Operator | Feb 2026 |
| 3135 | Nae, Inc. | Kerrville, TX 78028 | Oil Operator | Jul 2025 |
| 3136 | Nairn, Robert | Elkhart, KS 67950 | Gas Operator | Apr 2011 |
| 3137 | Nash Oil & Gas, Inc. | Newton, KS 67114 | Oil & Gas Operator | Sep 2025 |
| 3138 | Nataraja Oil Corporation | Foley, AL 36535 | Oil Operator | Aug 2010 |
| 3139 | National Coopera | | Oil & Gas Operator | Mar 1992 |
| 3140 | National Cooperative Refinery Assoc. | Great Bend, KS 67530 | Oil & Gas Operator | Feb 2023 |
| 3141 | National Crude O | | Oil & Gas Operator | Jun 1991 |
| 3142 | National Develop | | Oil & Gas Operator | Jan 1990 |
| 3143 | National Energy Group Inc | Dallas, TX 75206 | Oil & Gas Operator | Sep 2014 |
| 3144 | National Oil Co Ohio The | Columbus, OH 43215 | Oil & Gas Operator | Sep 1999 |
| 3145 | National Oil Com | | Oil & Gas Operator | Oct 1992 |
| 3146 | National Oil Company | Garden City, KS 67846 | Oil & Gas Operator | Jun 2024 |
| 3147 | National Petrole | | Oil & Gas Operator | Dec 1996 |
| 3148 | National Petroleum Reserves, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Apr 2012 |
| 3149 | Natural Capital LLC | Castle Rock, CO 80104 | Oil & Gas Operator | Dec 2009 |
| 3150 | Natural Gas & Oi | | Gas Operator | Dec 1987 |
| 3151 | Natural Gas Anadarko Company | Perryton, TX 79070 | Oil & Gas Operator | Feb 2026 |
| 3152 | Natural Gas Expl | | Oil & Gas Operator | Jul 1990 |
| 3153 | Navajo Oil Company | Wichita, KS 67206 | Gas Operator | May 2011 |
| 3154 | NC Oil Company, Inc. | Humboldt, KS 66748 | Oil Operator | Aug 2025 |
| 3155 | Nec Operating - Kansas, LLC | Southlake, TX 76092 | Oil & Gas Operator | Sep 2025 |
| 3156 | Nemaha Ridge, LLC | Coffeyville, KS 67337 | Oil Operator | Aug 2022 |
| 3157 | Neo Oilfield Services, LLC | Bristow, OK 74010 | Oil Operator | Oct 2015 |
| 3158 | Ness Crude Oil I | | Oil Operator | Mar 1994 |
| 3159 | New Age Oil LLC | Hays, KS 67601 | Oil & Gas Operator | Sep 2025 |
| 3160 | New Donna Lee Oil Company | Bakersfield, CA 93308 | Oil & Gas Operator | Jul 2025 |
| 3161 | New Generation Oil Inc | Russell, KS 67665 | Oil Operator | Feb 2002 |
| 3162 | New Gulf Operating LLC | Tulsa, OK 74133 | Oil Operator | Sep 2023 |
| 3163 | New Horizon Resources LLC | Houston, TX 77057 | Oil & Gas Operator | Feb 2026 |
| 3164 | New London Oil I | | Oil Operator | Dec 1996 |
| 3165 | New Western Operating, LLC | Irvine, CA 92618 | Oil & Gas Operator | Dec 2019 |
| 3166 | Newfield Exploration Mid-Continent, Inc | Tulsa, OK 74119 | Oil & Gas Operator | Apr 2011 |
| 3167 | Newland Oil Comp | | Oil Operator | Sep 1996 |
| 3168 | Ney Oil Operations | | Oil Operator | Apr 1998 |
| 3169 | Nicholas Water Service, Inc. | Zenda, KS 67159 | Oil Operator | Mar 2006 |
| 3170 | Nichols Fluid Service, Inc. | Liberal, KS 67901 | Oil Operator | Jun 2019 |
| 3171 | Nichols Oil Corp. | Holcomb, KS 67846 | Oil Operator | Dec 1994 |
| 3172 | Nichols, Manford, A General Partnership | Sublette, KS 67877 | Gas Operator | Aug 2025 |
| 3173 | Nickell & Son Oil & Salvage | Parker, KS 66072 | Oil Operator | Aug 2006 |
| 3174 | Nickell Drilling | | Oil Operator | Jun 2010 |
| 3175 | Niehage Oil Company, LLC | McPherson, KS 67460 | Oil Operator | Sep 2025 |
| 3176 | Nielson Enterpri | | Oil & Gas Operator | Sep 1987 |
| 3177 | Nightengale Henr | | Gas Operator | Nov 1996 |
| 3178 | Nitcher, Benton L. | Wellsville, KS 66092 | Oil & Gas Operator | Dec 1995 |
| 3179 | Nixon R P Operat | | Oil Operator | Aug 1995 |
| 3180 | Njre Operating Company | Tulsa, OK 74119 | Gas Operator | Dec 2016 |
| 3181 | Noah, Calvin | Valley Center, KS 67147 | Oil Operator | Oct 2010 |
| 3182 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Feb 2026 |
| 3183 | Noble Petroleum, Inc. | Wichita, KS 67205 | Oil Operator | Sep 2013 |
| 3184 | Noir-Blanc | Russell, KS 67665 | Oil Operator | May 1992 |
| 3185 | Nondorf Oil & Ga | | Oil Operator | Dec 1986 |
| 3186 | Nor-West Kansas Oil, L.L.C. | Wakeeney, KS 67672 | Oil Operator | Dec 2019 |
| 3187 | Nordmeyer Oil, Inc. | Toronto, KS 66777 | Oil Operator | Dec 2019 |
| 3188 | Nordstrand/Galoostian Oil & Gas | Houston, TX 77056 | Oil Operator | Mar 1998 |
| 3189 | Norstar Development | Madras, OR 97741 | Oil Operator | Nov 2018 |
| 3190 | Norstar Petroleu | | Oil & Gas Operator | Dec 1996 |
| 3191 | Norstar Petroleum Inc | Englewood, CO 80112 | Oil & Gas Operator | Sep 2025 |
| 3192 | North American D | | Oil & Gas Operator | Sep 1986 |
| 3193 | North American Drilling & Exploration, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Aug 2015 |
| 3194 | North American Resources Company | Billings, MT 59101 | Oil & Gas Operator | Dec 2019 |
| 3195 | North Pacific Oil And Gas, Inc | Houston, TX 77042 | Oil Operator | Mar 2013 |
| 3196 | North Plains Corp | Tulsa, OK 74137 | Oil & Gas Operator | Sep 2025 |
| 3197 | North Plains Oil | | Oil Operator | Jul 1990 |
| 3198 | Northern Gas Pro | | Gas Operator | Jun 1994 |
| 3199 | Northern Lights | | Oil & Gas Operator | Apr 1993 |
| 3200 | Northern Lights Oil Company, LLC | Andover, KS 67002 | Oil & Gas Operator | Sep 2025 |