| 3001 | Midco Exploration, Inc. | Westmont, IL 60559 | Oil & Gas Operator | Sep 2025 |
| 3002 | Midcontinent Acquisition Properties, Inc. | Oklahoma City, OK 73102 | Gas Operator | Jan 2000 |
| 3003 | Middle Bay Production Co. Inc. | Houston, TX 77010 | Oil & Gas Operator | Sep 2014 |
| 3004 | Midlands Gas Cor | | Gas Operator | Dec 1996 |
| 3005 | Midnight Energy Operating LLC | Drumright, OK 74030 | Oil Operator | Nov 2025 |
| 3006 | Midnight Well Se | | Oil Operator | Sep 1994 |
| 3007 | Midstates Energy Operating, LLC | FT Myers, FL 33912 | Oil Operator | Sep 2025 |
| 3008 | Midway Drilling | | Oil & Gas Operator | Dec 1996 |
| 3009 | Midway Operating Co. | Great Bend, KS 67530 | Oil Operator | Jan 1998 |
| 3010 | Midwest Oil, LLC | Destin, FL 32541 | Oil Operator | Sep 2025 |
| 3011 | Midwest Turf | El Dorado, KS 67042 | Oil Operator | Jun 1998 |
| 3012 | Midwestern Exploration Company | Edmond, OK 73013 | Oil & Gas Operator | May 2025 |
| 3013 | Midwestern Oil C | | Oil & Gas Operator | May 1995 |
| 3014 | Midwestern Suppl | | Oil Operator | Oct 1986 |
| 3015 | Migwis | Great Bend, KS 67530 | Oil Operator | Mar 1988 |
| 3016 | Mike Blaes & Peggy Blaes, A General Partnership | Cherryvale, KS 67335 | Oil Operator | Mar 2025 |
| 3017 | Mike Kelso Oil, Inc. | Chase, KS 67524 | Oil & Gas Operator | Sep 2025 |
| 3018 | Mikol Oil LLC | Hays, KS 67601 | Oil Operator | Sep 2025 |
| 3019 | Milburn, Harold J. | Hutchinson, KS 67502 | Oil & Gas Operator | Sep 2003 |
| 3020 | Millennium Oil & Gas Inc | Dexter, KS 67038 | Oil & Gas Operator | Dec 2024 |
| 3021 | Miller Bros Oil Company, Inc. | Burlington, KS 66839 | Oil Operator | Dec 2009 |
| 3022 | Miller Energy, LLC | Garnett, KS 66032 | Oil Operator | Nov 2019 |
| 3023 | Miller I O Incor | | Oil & Gas Operator | Apr 1991 |
| 3024 | Miller Oil Company, LLC | Chanute, KS 66720 | Oil Operator | Jun 2025 |
| 3025 | Miller, Abbe Wayne | Macksville, KS 67557 | Gas Operator | Aug 2018 |
| 3026 | Miller, Bobby Elzo | Sedan, KS 67361 | Oil Operator | Dec 2009 |
| 3027 | Miller, Everett E. | Sedan, KS 67361 | Oil & Gas Operator | Sep 1986 |
| 3028 | Miller, James R | Herrington, KS 67449 | Oil Operator | Nov 2025 |
| 3029 | Miller, Myron R. | Haven, KS 67543 | Oil Operator | Oct 2017 |
| 3030 | Miller, Ralph D. & Faye C. | Cherryvale, KS 67335 | Oil Operator | Apr 2003 |
| 3031 | Miller, Robert A. | Sedan, KS 67361 | Oil Operator | Aug 2022 |
| 3032 | Miller-Becker Enterprises, LLC | Russell, KS 67665 | Oil Operator | Jul 2025 |
| 3033 | Mills, Norman | Lake City, KS 67071 | Oil Operator | Dec 1995 |
| 3034 | Mills, Ralph A. | Louisburg, KS 66053 | Oil Operator | May 1998 |
| 3035 | Minatome Corpora | | Oil & Gas Operator | Sep 1987 |
| 3036 | Minner Oil Field Service | | Oil Operator | Jul 2008 |
| 3037 | Mishler Oil | | Oil Operator | May 1989 |
| 3038 | Missouri River R | | Gas Operator | Jun 1993 |
| 3039 | Mitchell Energy | | Oil & Gas Operator | Dec 1996 |
| 3040 | Mitchell Wyatt B | | Oil Operator | Aug 1993 |
| 3041 | Miura Petroleum | | Oil Operator | Dec 1992 |
| 3042 | Miura Petroleum Inc | Topeka, KS 66603 | Oil & Gas Operator | May 2006 |
| 3043 | Miway Operations | Russell, KS 67665 | Oil Operator | Aug 1994 |
| 3044 | MJ Energy LLC | Denver, CO 80206 | Oil Operator | Jan 2025 |
| 3045 | MJT Oil | | Oil Operator | Sep 2025 |
| 3046 | MKJ Oil Co LLC | Harper, KS 67058 | Oil & Gas Operator | Sep 2025 |
| 3047 | MLT Energy, LLC | Derby, KS 67037 | Oil Operator | Nov 2025 |
| 3048 | Mo-Kan Oil Group | St. Louis, MO 63131 | Oil Operator | Sep 2001 |
| 3049 | Mo-Tech Energy I | | Gas Operator | Dec 1993 |
| 3050 | Mobil Oil Corpor | | Oil & Gas Operator | Dec 1996 |
| 3051 | Mobil Oil Corporation | Houston, TX 77210 | Oil & Gas Operator | Dec 2007 |
| 3052 | Moff Oil Company | Pratt, KS 67124 | Gas Operator | Apr 1988 |
| 3053 | Mohawk Petroleum | | Oil & Gas Operator | Jan 1995 |
| 3054 | Mohr, Steve | Maize, KS 67101 | Oil Operator | Aug 2022 |
| 3055 | Molitor Oil, Inc. | Wichita, KS 67205 | Oil & Gas Operator | Sep 2025 |
| 3056 | Molz Oil Company Inc | Kiowa, KS 67070 | Oil & Gas Operator | Dec 2025 |
| 3057 | Monarch Energy C | | Oil Operator | Nov 1987 |
| 3058 | Monarch Energy LLC | Paola, KS 66071 | Oil Operator | Sep 2025 |
| 3059 | Monarch Petroleum Corporation | FT Worth, TX 76102 | Oil & Gas Operator | Dec 2019 |
| 3060 | Monfort, Roy C. | Iola, KS 66749 | Oil & Gas Operator | Sep 1989 |
| 3061 | Monsanto Oil Com | | Oil Operator | Nov 1996 |
| 3062 | Monterey Production Company LLC | Tulsa, OK 74136 | Oil & Gas Operator | Nov 2025 |
| 3063 | Montgomery Count | | Oil Operator | Dec 1992 |
| 3064 | Montgomery Production & Operating LLC | Herington, KS 67449 | Oil & Gas Operator | Sep 2025 |
| 3065 | Monument Resources, Inc. | Castle Rock, CO 80104 | Oil & Gas Operator | Jun 2012 |
| 3066 | Moore McCormack | | Gas Operator | Feb 1991 |
| 3067 | Moore, Brent L. | McPherson, KS 67460 | Oil Operator | Dec 1996 |
| 3068 | Moore, Clay (Deceased) | Dallas, TX 75218 | Oil Operator | Sep 2001 |
| 3069 | Moore, Douglas L. | Gridley, KS 66852 | Oil Operator | Jan 2019 |
| 3070 | Mor-Meg Incorpor | | Oil Operator | Dec 1996 |
| 3071 | Moran Oil Enterp | | Gas Operator | Apr 1989 |
| 3072 | Moran Oil Enterprises LLC | Seminole, OK 74818 | Oil & Gas Operator | Dec 2019 |
| 3073 | Morgenstern Oil Operations LLC | Ellinwood, KS 67526 | Oil Operator | Sep 2025 |
| 3074 | Morris & Morris | | Oil Operator | Sep 1995 |
| 3075 | Morris Bill Oil | | Gas Operator | Jan 1982 |
| 3076 | Morris Everett E | | Oil & Gas Operator | Feb 1991 |
| 3077 | Morris Oil Operations | | Oil Operator | Sep 2025 |
| 3078 | Morris Richard B | | Oil Operator | Dec 1996 |
| 3079 | Morrison, Mark L. | Yates Center, KS 66783 | Oil Operator | Sep 2025 |
| 3080 | Morrison-Dixon O | | Oil Operator | Oct 1993 |
| 3081 | Morrow, Joe | Farmington, NM 87401 | Oil Operator | Jan 1993 |
| 3082 | Morsey Oil & Gas | | Oil & Gas Operator | Mar 1995 |
| 3083 | Moss Petroleum Company | Dallas, TX 75207 | Oil & Gas Operator | Feb 2026 |
| 3084 | Mountain Petroleum Corp | Denver, CO 80202 | Oil & Gas Operator | Apr 2013 |
| 3085 | Moylan, Thomas F. | Lacygne, KS 66040 | Oil & Gas Operator | Dec 1993 |
| 3086 | MP Oil Operations | | Gas Operator | Dec 2004 |
| 3087 | MSG Resources Inc. | Iola, KS 66749 | Oil Operator | Sep 2025 |
| 3088 | MTM Petroleum, Inc. | Kingman, KS 67068 | Oil & Gas Operator | Sep 2025 |
| 3089 | Muegge, Clay A. | Lamont, OK 74643 | Oil Operator | Aug 1991 |
| 3090 | Mueller Oil | | Oil Operator | Jul 2025 |
| 3091 | Mull Drilling Company | Wichita, KS 67206 | Oil & Gas Operator | Nov 2025 |
| 3092 | Multiplex Resources, Inc. | Baytown, TX 77521 | Oil Operator | Dec 2009 |
| 3093 | Multistate Oil P | | Gas Operator | Apr 1990 |
| 3094 | Murchison Oil & | | Oil Operator | Mar 1988 |
| 3095 | Murfin Drilling | | Oil & Gas Operator | Jul 1997 |
| 3096 | Murfin Drilling Company, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Dec 2025 |
| 3097 | Murjo Oil & Royalty Company | Fort Worth, TX 76121 | Oil & Gas Operator | Aug 2025 |
| 3098 | Murk, James M. | Wheaton, IL 60189 | Gas Operator | Jan 1999 |
| 3099 | Murphy, Charles H. | Altoona, KS 66710 | Oil Operator | Jul 2022 |
| 3100 | Murphy, Earl M. | Madison, KS 66860 | Oil Operator | Jun 1999 |