| 3001 | Morrow, Joe | Farmington, NM 87401 | Oil Operator | Jan 1993 |
| 3002 | Morsey Oil & Gas | | Oil & Gas Operator | Mar 1995 |
| 3003 | Moss Petroleum Company | Dallas, TX 75207 | Oil & Gas Operator | Dec 2025 |
| 3004 | Mountain Petroleum Corp | Denver, CO 80202 | Oil & Gas Operator | Apr 2013 |
| 3005 | Moylan, Thomas F. | Lacygne, KS 66040 | Oil & Gas Operator | Dec 1993 |
| 3006 | MSG Resources Inc. | Iola, KS 66749 | Oil Operator | Jun 2025 |
| 3007 | MTM Petroleum, Inc. | Kingman, KS 67068 | Oil & Gas Operator | Jun 2025 |
| 3008 | Muegge, Clay A. | Lamont, OK 74643 | Oil Operator | Aug 1991 |
| 3009 | Mueller Oil | | Oil Operator | May 2025 |
| 3010 | Mull Drilling Company | Wichita, KS 67206 | Oil & Gas Operator | Sep 2025 |
| 3011 | Multiplex Resources, Inc. | Baytown, TX 77521 | Oil Operator | Dec 2009 |
| 3012 | Murchison Oil & | | Oil Operator | Mar 1988 |
| 3013 | Murfin Drilling | | Oil & Gas Operator | Jul 1997 |
| 3014 | Murfin Drilling Company, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Oct 2025 |
| 3015 | Murjo Oil & Royalty Company | Fort Worth, TX 76121 | Oil & Gas Operator | Jun 2025 |
| 3016 | Murk, James M. | Wheaton, IL 60189 | Gas Operator | Jan 1999 |
| 3017 | Murphy, Charles H. | Altoona, KS 66710 | Oil Operator | Jul 2022 |
| 3018 | Murphy, Earl M. | Madison, KS 66860 | Oil Operator | Jun 1999 |
| 3019 | Murray Oil And Gas LLC | Greensburg, KS 67054 | Oil & Gas Operator | Jun 2025 |
| 3020 | Musgrove Casey O | | Oil Operator | Oct 1993 |
| 3021 | Musgrove Casey Oil | Ponca City, OK 74602-0391 | Oil & Gas Operator | Jun 2017 |
| 3022 | Musgrove Energy Inc | Ponca City, OK 74602 | Oil & Gas Operator | Feb 2025 |
| 3023 | Musgrove Petrole | | Oil & Gas Operator | Dec 1996 |
| 3024 | Musgrove Produci | | Oil Operator | May 1989 |
| 3025 | Musgrove Producing | El Dorado, KS 67042 | Oil Operator | Apr 2001 |
| 3026 | Mustang Drilling | | Oil & Gas Operator | Nov 1996 |
| 3027 | Mustang Drilling, Inc. | Henderson, TX 75653 | Oil & Gas Operator | Aug 2024 |
| 3028 | Mustang Energy Corporation | Hays, KS 67601 | Oil Operator | Jun 2025 |
| 3029 | Mustang Fuel Cor | | Oil & Gas Operator | Dec 1990 |
| 3030 | Mustang Fuel Corporation | Oklahoma City, OK 73114 | Oil & Gas Operator | Sep 2025 |
| 3031 | Mustang Oil & Gas Corporation | Wichita Falls, TX 76308 | Oil & Gas Operator | Jul 2021 |
| 3032 | MV Purchasing LLC | Wichita, KS 67206 | Oil & Gas Operator | Dec 2019 |
| 3033 | MVRC Partnership | Russell, KS 67655 | Oil Operator | Jan 1992 |
| 3034 | MW Oil, Inc | | Oil & Gas Operator | Jun 2025 |
| 3035 | MWK Petroleum, LLC | Augusta, KS 67010 | Oil Operator | Jun 2025 |
| 3036 | Myers Drilling And Exploration Inc. | Sedan, KS 67361 | Oil Operator | Aug 2022 |
| 3037 | Myers Robert W J | | Oil Operator | Jun 1991 |
| 3038 | Myers, Gus & Annie | Sedan, KS 67361 | Oil Operator | Aug 2017 |
| 3039 | N & B Enterprise | | Oil Operator | Nov 1994 |
| 3040 | N & B Enterprises, Inc. | Iola, KS 66749 | Oil & Gas Operator | Jun 2025 |
| 3041 | N & P Enterprises | | Oil Operator | May 1997 |
| 3042 | N & W Enterprises, Inc. | Fort Scott, KS 66701 | Oil Operator | Jun 2025 |
| 3043 | N H Wheless Oil Company | Shreveport, LA 71101 | Gas Operator | Sep 2002 |
| 3044 | N L S Inc | Kimberling City, MO 65686 | Oil & Gas Operator | Aug 2016 |
| 3045 | N-10 Exploration, LLC | Attica, KS 67009 | Oil & Gas Operator | Jun 2025 |
| 3046 | N-A Energy LLC | Arvada, CO 80005 | Oil Operator | Jun 2025 |
| 3047 | N-B Company Inco | | Oil & Gas Operator | Apr 1992 |
| 3048 | N.F. Producers, Inc. | Berthoud, CO 80513 | Oil Operator | Jun 2025 |
| 3049 | Nacogdoches Oil & Gas, LLC | Nacogdoches, TX 75961 | Oil & Gas Operator | Dec 2017 |
| 3050 | Nadel & Gussman | Tulsa, OK 74103 | Oil & Gas Operator | May 2007 |
| 3051 | Nadel And Gussman LLC | Tulsa, OK 74119 | Oil & Gas Operator | Dec 2025 |
| 3052 | Nae, Inc. | Kerrville, TX 78028 | Oil Operator | Apr 2025 |
| 3053 | Nairn, Robert | Elkhart, KS 67950 | Gas Operator | Apr 2011 |
| 3054 | Nash Oil & Gas, Inc. | Newton, KS 67114 | Oil & Gas Operator | Jun 2025 |
| 3055 | Nataraja Oil Corporation | Foley, AL 36535 | Oil Operator | Aug 2010 |
| 3056 | National Coopera | | Oil & Gas Operator | Mar 1992 |
| 3057 | National Cooperative Refinery Assoc. | Great Bend, KS 67530 | Oil & Gas Operator | Feb 2023 |
| 3058 | National Crude O | | Oil & Gas Operator | Jun 1991 |
| 3059 | National Develop | | Oil & Gas Operator | Jan 1990 |
| 3060 | National Energy Group Inc | Dallas, TX 75206 | Oil & Gas Operator | Sep 2014 |
| 3061 | National Oil Co Ohio The | Columbus, OH 43215 | Oil & Gas Operator | Sep 1999 |
| 3062 | National Oil Com | | Oil & Gas Operator | Oct 1992 |
| 3063 | National Oil Company | Garden City, KS 67846 | Oil & Gas Operator | Jun 2024 |
| 3064 | National Petrole | | Oil & Gas Operator | Dec 1996 |
| 3065 | National Petroleum Reserves, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Apr 2012 |
| 3066 | Natural Capital LLC | Castle Rock, CO 80104 | Oil & Gas Operator | Dec 2009 |
| 3067 | Natural Gas & Oi | | Gas Operator | Dec 1987 |
| 3068 | Natural Gas Anadarko Company | Perryton, TX 79070 | Oil & Gas Operator | Dec 2025 |
| 3069 | Natural Gas Expl | | Oil & Gas Operator | Jul 1990 |
| 3070 | Navajo Oil Company | Wichita, KS 67206 | Gas Operator | May 2011 |
| 3071 | NC Oil Company, Inc. | Humboldt, KS 66748 | Oil Operator | Jun 2025 |
| 3072 | Nec Operating - Kansas, LLC | Southlake, TX 76092 | Oil & Gas Operator | Jun 2025 |
| 3073 | Nemaha Ridge, LLC | Coffeyville, KS 67337 | Oil Operator | Aug 2022 |
| 3074 | Neo Oilfield Services, LLC | Bristow, OK 74010 | Oil Operator | Oct 2015 |
| 3075 | Ness Crude Oil I | | Oil Operator | Mar 1994 |
| 3076 | New Age Oil LLC | Hays, KS 67601 | Oil & Gas Operator | Jun 2025 |
| 3077 | New Donna Lee Oil Company | Bakersfield, CA 93308 | Oil & Gas Operator | Jan 2025 |
| 3078 | New Generation Oil Inc | Russell, KS 67665 | Oil Operator | Feb 2002 |
| 3079 | New Gulf Operating LLC | Tulsa, OK 74133 | Oil Operator | Sep 2023 |
| 3080 | New Horizon Resources LLC | Houston, TX 77057 | Oil & Gas Operator | Dec 2025 |
| 3081 | New London Oil I | | Oil Operator | Dec 1996 |
| 3082 | New Western Operating, LLC | Irvine, CA 92618 | Oil & Gas Operator | Dec 2019 |
| 3083 | Newfield Exploration Mid-Continent, Inc | Tulsa, OK 74119 | Oil & Gas Operator | Apr 2011 |
| 3084 | Newland Oil Comp | | Oil Operator | Sep 1996 |
| 3085 | Ney Oil Operations | | Oil Operator | Apr 1998 |
| 3086 | Nicholas Water Service, Inc. | Zenda, KS 67159 | Oil Operator | Mar 2006 |
| 3087 | Nichols Fluid Service, Inc. | Liberal, KS 67901 | Oil Operator | Jun 2019 |
| 3088 | Nichols Oil Corp. | Holcomb, KS 67846 | Oil Operator | Dec 1994 |
| 3089 | Nichols, Manford, A General Partnership | Sublette, KS 67877 | Gas Operator | Jun 2025 |
| 3090 | Nickell & Son Oil & Salvage | Parker, KS 66072 | Oil Operator | Aug 2006 |
| 3091 | Nickell Drilling | | Oil Operator | Jun 2010 |
| 3092 | Niehage Oil Company, LLC | McPherson, KS 67460 | Oil Operator | Apr 2025 |
| 3093 | Nielson Enterpri | | Oil & Gas Operator | Sep 1987 |
| 3094 | Nightengale Henr | | Gas Operator | Nov 1996 |
| 3095 | Nitcher, Benton L. | Wellsville, KS 66092 | Oil & Gas Operator | Dec 1995 |
| 3096 | Nixon R P Operat | | Oil Operator | Aug 1995 |
| 3097 | Njre Operating Company | Tulsa, OK 74119 | Gas Operator | Dec 2016 |
| 3098 | Noah, Calvin | Valley Center, KS 67147 | Oil Operator | Oct 2010 |
| 3099 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Dec 2025 |
| 3100 | Noble Petroleum, Inc. | Wichita, KS 67205 | Oil Operator | Sep 2013 |