| 2801 | Meltzer Oil Comp | | Oil Operator | Dec 1983 |
| 2802 | Mem Partnership LP, A General Partnership | Spring, TX 77393 | Oil Operator | Jul 2024 |
| 2803 | Mercer Oil & Gas Co. | Norman, OK 73070 | Oil & Gas Operator | Apr 2015 |
| 2804 | Meredith Enterprises | | Oil Operator | Jun 1988 |
| 2805 | Meridian Energy Inc. | | Oil Operator | Jul 2024 |
| 2806 | Merit Energy Company | Dallas, TX 75240 | Oil & Gas Operator | Nov 2024 |
| 2807 | Merit Energy Company, LLC | Dallas, TX 75240 | Oil & Gas Operator | Jul 2024 |
| 2808 | Merrick Oil & Gas | | Oil & Gas Operator | May 2024 |
| 2809 | Merrico Resource | | Oil Operator | Dec 1996 |
| 2810 | Merritt Oil Comp | | Oil Operator | Jan 1990 |
| 2811 | Mesa Operating Co. | Irving, TX 75039 | Oil & Gas Operator | Aug 1997 |
| 2812 | Mesa Operating L | | Oil & Gas Operator | Dec 1996 |
| 2813 | Mesa Petroleum C | | Oil & Gas Operator | Dec 1986 |
| 2814 | Messenger Petroleum, Inc. | Kingman, KS 67068 | Oil & Gas Operator | Jul 2024 |
| 2815 | Messman Corporation | Wichita, KS 67208 | Oil & Gas Operator | Jun 2024 |
| 2816 | Messman-Rinehart | | Oil & Gas Operator | Mar 1991 |
| 2817 | Metro Energy Group, Inc. | Bossier City, LA 71112 | Oil & Gas Operator | May 2013 |
| 2818 | Metro Energy, Inc. | Gladstone, MO 64118 | Oil Operator | May 1997 |
| 2819 | Metro Oil Compan | | Oil Operator | Jan 1991 |
| 2820 | Mewbourne Oil Company | Tyler, TX 75711 | Oil & Gas Operator | Nov 2024 |
| 2821 | Meyer Douglas P | Longmont, CO 80501 | Oil & Gas Operator | Aug 2006 |
| 2822 | Meyer, Norbert | Conway Springs, KS 67031 | Oil Operator | Aug 1994 |
| 2823 | Meyer, Theodore J. | Conway Springs, KS 67031 | Oil Operator | Jul 2024 |
| 2824 | Mica Energy Corp. | Lincoln, NE 68516 | Oil & Gas Operator | Dec 2010 |
| 2825 | Michael D. Traylor LLC | El Dorado, KS 67042 | Oil Operator | Jul 2024 |
| 2826 | Michael D. Weilert Oil Company | | Oil Operator | Jul 2024 |
| 2827 | Michaelis Leo Oi | | Oil Operator | Aug 1991 |
| 2828 | Mico Oil & Gas | Paola, KS 66071 | Oil Operator | Aug 1995 |
| 2829 | Micro Oil, LLC | Casa Grande, AZ 85193 | Oil Operator | Jun 2024 |
| 2830 | Mid America Ener | | Oil Operator | Nov 1993 |
| 2831 | Mid Con Energy Corporation | Fort Scott, KS 66701 | Oil Operator | Dec 2009 |
| 2832 | Mid Continent Resources, Inc. | Houston, TX 77060 | Oil & Gas Operator | Nov 2024 |
| 2833 | Mid Gulf Incorpo | | Oil & Gas Operator | Nov 1993 |
| 2834 | Mid Kansas Explo | | Oil Operator | Apr 1994 |
| 2835 | Mid Kansas Gas Gathering | | Gas Operator | Jul 2024 |
| 2836 | Mid States Energ | | Oil Operator | Aug 1985 |
| 2837 | Mid States Gener | | Oil Operator | Apr 1988 |
| 2838 | Mid Western Oil | | Oil Operator | Oct 1989 |
| 2839 | Mid-America Energy Company, Inc. | Lebanon, MO 65536 | Oil Operator | Jul 2003 |
| 2840 | Mid-American Hyd | | Oil & Gas Operator | Jan 1992 |
| 2841 | Mid-Con Energy Operating, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Sep 2024 |
| 2842 | Mid-Continent En | | Oil & Gas Operator | Nov 1995 |
| 2843 | Mid-Continent Energy Corp. | Wichita, KS 67208 | Oil & Gas Operator | Jul 2024 |
| 2844 | Mid-Continent Energy Operating Company | Tulsa, OK 74103 | Oil & Gas Operator | Sep 2024 |
| 2845 | Mid-Continent Energy, Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2020 |
| 2846 | Mid-Continent Re | | Oil & Gas Operator | Jan 1993 |
| 2847 | Mid-Gulf, Inc. | Brenham, TX 77834 | Oil & Gas Operator | Mar 2008 |
| 2848 | Midco Exploration, Inc. | Westmont, IL 60559 | Oil & Gas Operator | Jul 2024 |
| 2849 | Midcontinent Acquisition Properties, Inc. | Oklahoma City, OK 73102 | Gas Operator | Jan 2000 |
| 2850 | Middle Bay Production Co. Inc. | Houston, TX 77010 | Oil & Gas Operator | Sep 2014 |
| 2851 | Midlands Gas Cor | | Gas Operator | Dec 1996 |
| 2852 | Midnight Energy Operating LLC | Drumright, OK 74030 | Oil Operator | Sep 2024 |
| 2853 | Midnight Well Se | | Oil Operator | Sep 1994 |
| 2854 | Midstates Energy Operating, LLC | FT Myers, FL 33912 | Oil Operator | Jun 2024 |
| 2855 | Midway Drilling | | Oil & Gas Operator | Dec 1996 |
| 2856 | Midway Operating Co. | Great Bend, KS 67530 | Oil Operator | Jan 1998 |
| 2857 | Midwest Oil, LLC | Destin, FL 32541 | Oil Operator | Apr 2024 |
| 2858 | Midwest Turf | El Dorado, KS 67042 | Oil Operator | Jun 1998 |
| 2859 | Midwestern Exploration Co. | Edmond, OK 73013 | Oil & Gas Operator | Jul 2024 |
| 2860 | Midwestern Oil C | | Oil & Gas Operator | May 1995 |
| 2861 | Midwestern Suppl | | Oil Operator | Oct 1986 |
| 2862 | Migwis | Great Bend, KS 67530 | Oil Operator | Mar 1988 |
| 2863 | Mike Blaes & Peggy Blaes, A General Partnership | Cherryvale, KS 67335 | Oil Operator | Dec 2023 |
| 2864 | Mike Kelso Oil, Inc. | Chase, KS 67524 | Oil & Gas Operator | Jul 2024 |
| 2865 | Mikol Oil LLC | Hays, KS 67601 | Oil Operator | Jul 2024 |
| 2866 | Milburn, Harold J. | Hutchinson, KS 67502 | Oil & Gas Operator | Sep 2003 |
| 2867 | Millennium Oil & Gas Inc | Dexter, KS 67038 | Oil & Gas Operator | Dec 2023 |
| 2868 | Miller Bros Oil Company, Inc. | Burlington, KS 66839 | Oil Operator | Dec 2009 |
| 2869 | Miller Energy, LLC | Garnett, KS 66032 | Oil Operator | Nov 2019 |
| 2870 | Miller I O Incor | | Oil & Gas Operator | Apr 1991 |
| 2871 | Miller Oil Company, LLC | Chanute, KS 66720 | Oil Operator | Jul 2024 |
| 2872 | Miller, Bobby Elzo | Sedan, KS 67361 | Oil Operator | Dec 2009 |
| 2873 | Miller, Everett E. | Sedan, KS 67361 | Oil & Gas Operator | Sep 1986 |
| 2874 | Miller, James R. | Herrington, KS 67449 | Oil Operator | Sep 2024 |
| 2875 | Miller, Myron R. | Haven, KS 67543 | Oil Operator | Oct 2017 |
| 2876 | Miller, Ralph D. & Faye C. | Cherryvale, KS 67335 | Oil Operator | Apr 2003 |
| 2877 | Miller, Robert A. | Sedan, KS 67361 | Oil Operator | Aug 2022 |
| 2878 | Miller-Becker Enterprises, LLC | Russell, KS 67665 | Oil Operator | May 2024 |
| 2879 | Mills, Norman | Lake City, KS 67071 | Oil Operator | Dec 1995 |
| 2880 | Mills, Ralph A. | Louisburg, KS 66053 | Oil Operator | May 1998 |
| 2881 | Minatome Corporation | | Oil & Gas Operator | Sep 1987 |
| 2882 | Minner Oil Field Service | | Oil Operator | Jul 2008 |
| 2883 | Mishler Oil | | Oil Operator | May 1989 |
| 2884 | Mitchell Energy | | Oil & Gas Operator | Dec 1996 |
| 2885 | Mitchell Wyatt B | | Oil Operator | Aug 1993 |
| 2886 | Miura Petroleum | | Oil Operator | Dec 1992 |
| 2887 | Miura Petroleum, Inc. | Topeka, KS 66603 | Oil & Gas Operator | May 2006 |
| 2888 | Miway Operations | Russell, KS 67665 | Oil Operator | Aug 1994 |
| 2889 | MJ Energy, LLC | Denver, CO 80206 | Oil Operator | Jul 2024 |
| 2890 | MJ Oil Company | Minerva, OH 44657 | Oil & Gas Operator | Dec 2008 |
| 2891 | MJT Oil | | Oil Operator | Jul 2024 |
| 2892 | MKJ Oil Co LLC | Harper, KS 67058 | Oil & Gas Operator | Jul 2024 |
| 2893 | Mo-Kan Oil Group | St. Louis, MO 63131 | Oil Operator | Sep 2001 |
| 2894 | Mobil Oil Corpor | | Oil & Gas Operator | Dec 1996 |
| 2895 | Mobil Oil Corporation | Houston, TX 77210 | Oil & Gas Operator | Jun 2016 |
| 2896 | Moff Oil Company | Pratt, KS 67124 | Gas Operator | Apr 1988 |
| 2897 | Mohawk Petroleum | | Oil & Gas Operator | Jan 1995 |
| 2898 | Mohr, Steve | Maize, KS 67101 | Oil Operator | Aug 2022 |
| 2899 | Molitor Oil, Inc. | Wichita, KS 67205 | Oil & Gas Operator | Jul 2024 |
| 2900 | Molz Oil Company | Kiowa, KS 67070 | Oil & Gas Operator | Sep 2024 |