| 6801 | M & M Oil Company | Monahans, TX 79756 | Oil & Gas Operator | Sep 2025 |
| 6802 | M & M Production LTD. | Midland, TX 79704 | Oil & Gas Operator | Feb 2026 |
| 6803 | M & M Resources Inc | Oklahoma City, OK 73156 | Oil & Gas Operator | Sep 2018 |
| 6804 | M & R Exploration Company | Houston, TX 77074 | Oil & Gas Operator | Aug 2003 |
| 6805 | M & S Exploration | El Campo, TX 77437 | Oil & Gas Operator | Feb 2026 |
| 6806 | M A S Operators | Kilgore, TX 75663 | Oil & Gas Operator | Jul 1999 |
| 6807 | M E G G , Inc. | Borger, TX 79008 | Oil & Gas Operator | Sep 2003 |
| 6808 | M E Klein & Associates, Inc. | Norman, OK 73070 | Oil & Gas Operator | Sep 2025 |
| 6809 | M H W, Inc. | Dallas, TX 75230 | Oil & Gas Operator | Jul 1996 |
| 6810 | M IV Ops., Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Mar 1998 |
| 6811 | M R Ventures LLC | Dallas, TX 75367 | Oil & Gas Operator | Dec 2025 |
| 6812 | M S B Company | Slaton, TX 79364 | Oil & Gas Operator | Dec 2016 |
| 6813 | M T M Oil | Monahans, TX 79756 | Oil & Gas Operator | Feb 2026 |
| 6814 | M W Production Co. | New Braunfels, TX 78130 | Oil & Gas Operator | Aug 2003 |
| 6815 | M'Red Petroleum, LLC | Pampa, TX 79065 | Oil & Gas Operator | Dec 2010 |
| 6816 | M-2 Oil Company | Wichita Falls, TX 76306 | Oil & Gas Operator | May 2006 |
| 6817 | M-B Operating Co., Inc. | Rowlett, TX 75030 | Oil & Gas Operator | Feb 2026 |
| 6818 | M-C Production & Drilling Co,Inc | Longview, TX 75608 | Oil & Gas Operator | Feb 2026 |
| 6819 | M-Five Oil Company | Seguin, TX 78155 | Oil & Gas Operator | Apr 2002 |
| 6820 | M-G Gas Company, Inc. | Plano, TX 75086 | Oil & Gas Operator | Jun 1999 |
| 6821 | M-J Oil Company Inc. | Minerva, OH 44657 | Oil & Gas Operator | Dec 2008 |
| 6822 | M-T Petroleum, Inc. | Andrews, TX 79714 | Oil & Gas Operator | Mar 2008 |
| 6823 | M-Tex Resources, Inc. | Merkel, TX 79536 | Oil & Gas Operator | Feb 2026 |
| 6824 | M-V Company | Refugio, TX 78377 | Oil & Gas Operator | Jun 2004 |
| 6825 | M-W-D Oil Co. | Odessa, TX 79760 | Oil & Gas Operator | Jul 1999 |
| 6826 | M. E. Operating & Services, Inc. | Fort Worth, TX 76104 | Oil & Gas Operator | Feb 2026 |
| 6827 | M. Grace, Inc. | Henderson, TX 75653 | Oil & Gas Operator | Feb 2026 |
| 6828 | M. J. G., Inc. | Alice, TX 78333 | Oil & Gas Operator | Jul 2010 |
| 6829 | M. K. Production | Caldwell, TX 77836 | Oil & Gas Operator | Mar 2008 |
| 6830 | M. M. Miller & Sons, LTD. | Alice, TX 78333 | Oil & Gas Operator | Jan 2023 |
| 6831 | M. P. S. Prod. Co. | Houston, TX 77225 | Oil & Gas Operator | Dec 1996 |
| 6832 | M. S. Productions, Inc. | Pittsburg, KS 66762 | Oil & Gas Operator | Nov 2019 |
| 6833 | M.A.R.S. Energy | Midland, TX 79701 | Oil & Gas Operator | Feb 2026 |
| 6834 | M.B. Properties, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Oct 1995 |
| 6835 | M.B.J. Operating | Argyle, TX 76226 | Oil & Gas Operator | Jun 2022 |
| 6836 | M.D. Skroopka Operating, LLC | Oakland, CA 94611 | Oil & Gas Operator | Feb 2026 |
| 6837 | M.J.O.G., Inc. | Fort Smith, AR 72903 | Oil Operator | Mar 2015 |
| 6838 | M.R.M. Operating, Inc. | Midland, TX 79707 | Oil & Gas Operator | Aug 2003 |
| 6839 | M2 Squared Operating, LLC | Rockwall, TX 75032 | Oil Operator | Feb 2026 |
| 6840 | M3V Energy, LLC | Perryton, TX 79070 | Oil & Gas Operator | Feb 2026 |
| 6841 | M5 Standing Energy, LLC | Decatur, TX 76234 | Oil & Gas Operator | Feb 2026 |
| 6842 | M5oexit, LLC | Pampa, TX 79066 | Oil & Gas Operator | Feb 2026 |
| 6843 | Mac 5 Operating, LLC | Pampa, TX 79065 | Oil & Gas Operator | Feb 2021 |
| 6844 | Mac Operating | Graham, TX 76450 | Oil & Gas Operator | Jun 2023 |
| 6845 | Mace, T. A. | Oklahoma City, OK 73127 | Oil & Gas Operator | Feb 2008 |
| 6846 | Macha Enterprises, Inc. | Wichita Falls, TX 76309 | Oil Operator | Feb 2026 |
| 6847 | Machin & Associates, Inc. | Longview, TX 75606 | Oil & Gas Operator | Feb 2026 |
| 6848 | Macina, P.T. | Shamrock, TX 79079 | Gas Operator | Feb 2026 |
| 6849 | Mack Energy Co. | Duncan, OK 73534 | Oil & Gas Operator | Dec 2025 |
| 6850 | Mack Energy Corporation | Artesia, NM 88211 | Oil & Gas Operator | Dec 2025 |
| 6851 | Maclane Gas Company L.P. | Corpus Chrsti, TX 78478 | Oil & Gas Operator | Mar 1994 |
| 6852 | Maddox Operating | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 6853 | Maddux Oil & Gas | Strawn, TX 76475 | Oil & Gas Operator | Feb 2026 |
| 6854 | Maddux, Elizabeth H. | San Antonio, TX 78217 | Oil & Gas Operator | Nov 1995 |
| 6855 | Madera, R. F. | Palm Desert, CA 92210 | Oil & Gas Operator | Sep 2000 |
| 6856 | Madison And Wright LLC | The Colony, TX 75056 | Oil & Gas Operator | Feb 2026 |
| 6857 | Madison Oil Co.-Halbouty, M. T. | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1998 |
| 6858 | Madison Oil Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1998 |
| 6859 | Maersk Energy Inc. | Houston, TX 77042 | Oil & Gas Operator | Oct 1994 |
| 6860 | Maertins Production, LLC | Queen City, TX 75572 | Oil Operator | Feb 2026 |
| 6861 | Magellan E&P Holdings, Inc. | Houston, TX 77056 | Oil & Gas Operator | Jun 2021 |
| 6862 | Maggert Energy Corp. | Spring, TX 77387 | Gas Operator | Jun 1998 |
| 6863 | Magic Circle Energy | Oklahoma City, OK 73185 | Oil & Gas Operator | Dec 1983 |
| 6864 | Magic City Oil & Gas | Amarillo, TX 79109 | Oil & Gas Operator | Feb 2026 |
| 6865 | Magic Oil & Gas Inc. | Houston, TX 77079 | Oil & Gas Operator | Jan 2001 |
| 6866 | Magna Diversified Group, Inc. | Jacksonville, TX 75766 | Oil & Gas Operator | Oct 2013 |
| 6867 | Magna Oil & Gas Corporation | Irving, TX 75017 | Oil & Gas Operator | Feb 2016 |
| 6868 | Magna Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2026 |
| 6869 | Magnatex Corp | Midland, TX 79702-1311 | Oil & Gas Operator | Feb 1995 |
| 6870 | Magnet Oil LP | Bronte, TX 76933 | Oil & Gas Operator | Feb 2026 |
| 6871 | Magnolia Oil & Gas Operating LLC | Houston, TX 77046 | Oil & Gas Operator | Feb 2026 |
| 6872 | Magnolia Production Co | Atlanta, TX 75551 | Oil & Gas Operator | Feb 2026 |
| 6873 | Magnum Energy Inc | Norman, OK 73072-2403 | Oil & Gas Operator | Dec 2025 |
| 6874 | Magnum Engineering Company | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Feb 2026 |
| 6875 | Magnum Hunter Production, Inc. | Irving, TX 75014 | Oil & Gas Operator | Dec 2019 |
| 6876 | Magnum Oil & Gas | Flower Mound, TX 75028 | Oil & Gas Operator | Jul 2000 |
| 6877 | Magnum Oilfield Services LLC | Bakersfield, CA 93309 | Oil Operator | Feb 2026 |
| 6878 | Magnum Operating, LLC | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Feb 2026 |
| 6879 | Magnum Petroleum, Inc. | Palm Desert, CA 92260 | Oil & Gas Operator | Nov 2013 |
| 6880 | Magnum Producing & Operating Co. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Jan 2004 |
| 6881 | Magnum Producing, LP | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Feb 2026 |
| 6882 | Magnum Production & Well Service | Iowa Park, TX 76367 | Oil & Gas Operator | Feb 2026 |
| 6883 | Magruder '81, LTD. | Midland, TX 79701 | Oil & Gas Operator | Jan 1995 |
| 6884 | Magruder, Edwin H., Jr. | Midland, TX 79701 | Oil & Gas Operator | Oct 2019 |
| 6885 | Maguire Oil Company | Dallas, TX 75270 | Oil & Gas Operator | Mar 2015 |
| 6886 | Mahfouz Energy Company | Houston, TX 77255 | Oil & Gas Operator | Nov 2020 |
| 6887 | Mahler & Scott | Ruidoso, NM 88355 | Oil & Gas Operator | Aug 2003 |
| 6888 | Mahler, Kelly Operating | Graham, TX 76450 | Oil & Gas Operator | Mar 2017 |
| 6889 | Mai Oil Operations, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Sep 2025 |
| 6890 | Main Energy, Inc. | Houston, TX 77079 | Oil & Gas Operator | May 2009 |
| 6891 | Main Street Royalty, Inc. | Lockhart, TX 78644 | Oil & Gas Operator | Aug 1999 |
| 6892 | Majestic Oil & Gas Holding Co. | Midland, TX 79705 | Oil Operator | Feb 2026 |
| 6893 | Majestic Oil & Gas, Inc. | Pampa, TX 79066 | Oil & Gas Operator | May 2007 |
| 6894 | Majestic Petroleum Corporation | Dallas, TX 75230 | Oil & Gas Operator | Oct 1996 |
| 6895 | Majestic Resources, Inc. | Dripping SPGS, TX 78620 | Oil & Gas Operator | Nov 2007 |
| 6896 | Mak-J Energy Partners(TX),LTD. | Denver, CO 80206 | Oil & Gas Operator | Sep 2013 |
| 6897 | Makar Production Company | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 6898 | Makk Oil Production Inc. | Monahans, TX 79756 | Oil & Gas Operator | Feb 2026 |
| 6899 | Mako Exploration Management, LLC | Shreveport, LA 71105 | Oil & Gas Operator | Feb 2026 |
| 6900 | Makoil, Inc. | Lake Forest, CA 92630 | Oil & Gas Operator | Jul 2007 |