| 17801 | Mapco Production Co | Billings, MT 59102 | Oil & Gas Operator | Apr 1994 |
| 17802 | Maple Energy Holdings, LLC | Houston, TX 77007 | Oil & Gas Operator | Sep 2023 |
| 17803 | Maple Grove Enterprises Inc | Rimersburg, PA 16248-6415 | Oil & Gas Operator | Dec 2023 |
| 17804 | Maple Gulf Coast Props. Corp. | | Oil & Gas Operator | Jun 1989 |
| 17805 | Maple Lane Farms Dairy And Grain LLC | Marietta, NY 13110 | Gas Operator | Dec 2023 |
| 17806 | Maple Leaf Energ | | Oil & Gas Operator | Sep 1989 |
| 17807 | Maple Properties Corp | Dallas, TX 75204 | Oil & Gas Operator | Jan 1999 |
| 17808 | Mar Oil & Gas Corp. | Santa Fe, NM 87502 | Oil & Gas Operator | Sep 2024 |
| 17809 | Mar Oil Company | Upper Sandusky, OH 43351 | Oil & Gas Operator | Dec 2023 |
| 17810 | Mar-Bar Enterprises Inc | Cushing, OK 74023-3031 | Oil Operator | Aug 2024 |
| 17811 | Mar-Bec Energy Company, L.L.C. | Shreveport, LA 71105 | Oil & Gas Operator | May 2001 |
| 17812 | Mar-Lou Oil Co., LLC | Wilson, KS 67490 | Oil Operator | Jul 2024 |
| 17813 | Mar-Low Corporation | | Oil & Gas Operator | Mar 1992 |
| 17814 | Mar-Win Development Co. | | Oil & Gas Operator | Nov 1988 |
| 17815 | Mar/Reg Investments | Irving, TX 75016 | Oil & Gas Operator | Jul 1999 |
| 17816 | Mar/Reg Oil Company | Reno, NV 89511 | Oil & Gas Operator | Sep 2024 |
| 17817 | Maralex Resources Inc | Ignacio, CO 81137 | Oil & Gas Operator | Sep 2024 |
| 17818 | Maralo, Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 1998 |
| 17819 | Maralo, LLC | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 17820 | Maram Energy Inc | MT Vernon, OH 43050 | Oil & Gas Operator | Dec 2023 |
| 17821 | Maran Oil Company | San Antonio, TX 78216 | Oil & Gas Operator | Dec 2020 |
| 17822 | Maran Oil Company, LLC | San Antonio, TX 78216 | Oil & Gas Operator | Mar 2022 |
| 17823 | Maranatha Energy Corporation | Princeton, WV 24740-0000 | Oil & Gas Operator | Dec 2021 |
| 17824 | Maranatha Exploration Inc | Killbuck, OH 44637 | Oil & Gas Operator | Dec 1992 |
| 17825 | Maranatha Exploration, LP | Wichita Falls, TX 76307 | Oil Operator | Feb 2012 |
| 17826 | Maranatha Oil Company | Gonzales, TX 78629 | Oil & Gas Operator | Nov 2024 |
| 17827 | Maranatha Petroleum Inc. | | Oil & Gas Operator | Sep 2024 |
| 17828 | Marata Oil & Gas Company | Dallas, TX 75225 | Oil & Gas Operator | Aug 2003 |
| 17829 | Marathon Corporation | | Oil Operator | Dec 1994 |
| 17830 | Marathon Oil Co.-Rocky Mountain Region | Cody, WY 82414 | Oil Operator | Dec 1999 |
| 17831 | Marathon Oil Com | | Oil & Gas Operator | Dec 1996 |
| 17832 | Marathon Oil Company | Houston, TX 77024 | Oil & Gas Operator | Sep 2024 |
| 17833 | Marathon Oil Company Operator | | Oil & Gas Operator | Dec 1993 |
| 17834 | Marathon Oil Company/Fina | | Oil & Gas Operator | Feb 2005 |
| 17835 | Marathon Oil Ef LLC | Houston, TX 77024 | Oil & Gas Operator | Nov 2024 |
| 17836 | Marathon Oil Permian LLC | Houston, TX 77024 | Oil & Gas Operator | Sep 2024 |
| 17837 | Marben Corporation | | Oil Operator | Jul 1995 |
| 17838 | Marbet LLC | Edmond, OK 73013-6691 | Oil & Gas Operator | Sep 2024 |
| 17839 | Marbil Oil, Inc. | Olney, TX 76374 | Oil & Gas Operator | Jun 2013 |
| 17840 | Marbob Energy Corp | Artesia, NM 882110227 | Oil & Gas Operator | Oct 2010 |
| 17841 | Marchman, J. E. | Graham, TX 76450 | Oil & Gas Operator | Jul 2009 |
| 17842 | Marco Drilling Inc | Monroeville, PA 15146-0278 | Oil & Gas Operator | Dec 2023 |
| 17843 | Marco Land & Petroleum, Inc. | | Oil & Gas Operator | Jun 2000 |
| 17844 | Marco Oil Co, Inc | Sparta, KY 41086 | Oil Operator | Dec 2021 |
| 17845 | Marco Oil Compan | | Oil & Gas Operator | Aug 1992 |
| 17846 | Marco Oil Company LLC | Bartlesville, OK 74005 | Oil & Gas Operator | Sep 2024 |
| 17847 | Marco Polo Exploration, Inc. | Rosenberg, TX 77471 | Oil & Gas Operator | Dec 1993 |
| 17848 | Marcon Operating Company, Inc. | Bridgeport, TX 76426 | Oil & Gas Operator | Oct 2011 |
| 17849 | Marcum Drilling Co. | Midland, TX 79701 | Oil & Gas Operator | Aug 2002 |
| 17850 | Marcus Exploration Inc | Piedmont, OK 73078-0308 | Oil & Gas Operator | Dec 2000 |
| 17851 | Mardale Drilling Company | Oklahoma City, OK 73157 | Oil Operator | Nov 1998 |
| 17852 | Marden Petroleum Exp Co | Marietta, OH 45750 | Oil & Gas Operator | Dec 1990 |
| 17853 | Marden Producing | | Gas Operator | Aug 1990 |
| 17854 | Marden Producing Company | Edmond, OK 73083 | Gas Operator | Jul 2024 |
| 17855 | Mare Energy | Danville, OH 43014 | Oil & Gas Operator | Dec 2021 |
| 17856 | Mare Energy LLC | Danville, OH 43014 | Oil & Gas Operator | Dec 2023 |
| 17857 | Marexco | | Oil & Gas Operator | Nov 1994 |
| 17858 | Marexco, Inc. | Castle Rock, CO 80104 | Oil & Gas Operator | Nov 2024 |
| 17859 | Maria L. Andrade | | Oil Operator | Dec 2006 |
| 17860 | Mariacher, Matthew | Elma, NY 14059 | Gas Operator | Dec 2023 |
| 17861 | Mariah Energy Corp. | Austin, TX 78716 | Oil & Gas Operator | Apr 1999 |
| 17862 | Mariah Exploration LLC | Pawhuska, OK 74056 | Oil & Gas Operator | Oct 2008 |
| 17863 | Mariah Operating Company, LLC | Denver, CO 80201 | Oil & Gas Operator | Dec 2009 |
| 17864 | Marianas Operating Co. | Abilene, TX 79601 | Oil & Gas Operator | Aug 2003 |
| 17865 | Marieff Petroleum, Inc. | Sagamore Hills, OH 44067 | Gas Operator | Dec 2023 |
| 17866 | Marienfeld Exploration | Houston, TX 77005 | Oil & Gas Operator | Mar 1994 |
| 17867 | Marienfeld Exploration, Inc. | Ojai, CA 93024 | Oil & Gas Operator | Nov 2024 |
| 17868 | Marietta Royalty Co Inc | Stillwater, OK 74076 | Oil & Gas Operator | Dec 1986 |
| 17869 | Marina Pacifica Oil Company | | Oil & Gas Operator | Dec 1981 |
| 17870 | Marine Cont. & Supply Inc. | | Oil & Gas Operator | Nov 1985 |
| 17871 | Marine Properties, Inc. | | Oil & Gas Operator | Feb 1995 |
| 17872 | Mariner Energy, Inc. | Houston, TX 77042 | Oil & Gas Operator | Nov 2010 |
| 17873 | Marino, Charles B. | Tomball, TX 77377 | Oil & Gas Operator | Nov 2024 |
| 17874 | Marion Corporation | | Oil & Gas Operator | Jan 2001 |
| 17875 | Marion County Prod. Co., L.L.C. | Kilgore, TX 75663 | Oil & Gas Operator | Nov 2024 |
| 17876 | Marion Energy Inc | Houston, TX 770082292 | Oil & Gas Operator | May 2015 |
| 17877 | Marion Operating Corp | Marion, OH 43301-0453-0453 | Oil & Gas Operator | Dec 2020 |
| 17878 | Mariposa Petroleum Co. | | Gas Operator | Dec 1980 |
| 17879 | Maritech Resources, Inc. | The Woodlands, TX 77380 | Oil & Gas Operator | Nov 2009 |
| 17880 | Maritech Resources, LLC | | Oil & Gas Operator | May 2011 |
| 17881 | Marjac Energy Co | Bremen, OH 43107 | Oil & Gas Operator | Dec 1986 |
| 17882 | Marjac Oil Company, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Nov 2024 |
| 17883 | Marjo Incorporat | | Oil & Gas Operator | Jun 1990 |
| 17884 | Marjo Oil Company | Lockhart, TX 78644 | Oil & Gas Operator | Oct 1999 |
| 17885 | Marjo Operating Company Inc | Tulsa, OK 741010729 | Oil & Gas Operator | Aug 2024 |
| 17886 | Marjo Operating Mid-Continent LLC | Tulsa, OK 74103 | Oil & Gas Operator | Sep 2024 |
| 17887 | Marjo, Inc. | | Oil & Gas Operator | Sep 1991 |
| 17888 | Mark & Troy Johnson | Sugar Grove, PA 16350-5938 | Oil Operator | Dec 2023 |
| 17889 | Mark A & Michael J Midlik | Warren, PA 16365-2029 | Oil & Gas Operator | Dec 2015 |
| 17890 | Mark A Meier Dba MSC Oil And Gas Co | Oklahoma City, OK 73105 | Oil & Gas Operator | Sep 2024 |
| 17891 | Mark F Preddy & Associates,Inc | | Oil & Gas Operator | Dec 1987 |
| 17892 | Mark Holloway Inc | Oklahoma City, OK 73107-6526 | Oil & Gas Operator | Sep 2024 |
| 17893 | Mark I Oil Company | Midland, TX 79702 | Oil & Gas Operator | Nov 2024 |
| 17894 | Mark III Oil, Inc. | Wichita, KS 67206 | Oil Operator | Dec 2009 |
| 17895 | Mark IV Energy | San Antonio, TX 78213 | Oil & Gas Operator | Apr 1993 |
| 17896 | Mark L Shidler Inc | Houston, TX 77055 | Oil & Gas Operator | Sep 2024 |
| 17897 | Mark Oil, Inc. | Chanute, KS 66720 | Oil Operator | May 2024 |
| 17898 | Mark Petroleum Inc | Tulsa, OK 74136 | Oil & Gas Operator | Sep 2018 |
| 17899 | Mark Producing, Inc. | Houston, TX 77057 | Oil & Gas Operator | Dec 1987 |
| 17900 | Mark Resources Corp | Pittsburgh, PA 15276 | Oil & Gas Operator | Dec 1993 |