| 1701 | Misc Oil Co | Oilmont, MT 59466 | Oil Operator | Apr 2026 |
| 1702 | Misener Operating, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 2010 |
| 1703 | Mishler Oil | | Oil Operator | May 1989 |
| 1704 | Miss Basin Oil & Gas Company | | Oil Operator | Jan 1985 |
| 1705 | Miss Chub LLC | | Gas Operator | Dec 2024 |
| 1706 | Miss-Lou Oil Producers Inc | | Oil & Gas Operator | Dec 1998 |
| 1707 | Miss-Lou Operating, LLC | | Oil & Gas Operator | Apr 2026 |
| 1708 | Miss-Lou Petroleum LLC | | Oil & Gas Operator | Jun 2011 |
| 1709 | Missala Inc | | Oil & Gas Operator | Dec 1995 |
| 1710 | Missaukee Oil And Gas Company LLC | | Oil & Gas Operator | Apr 2026 |
| 1711 | Missing Moon Oil Inc | Knox, PA 16232-4507 | Oil & Gas Operator | Dec 2025 |
| 1712 | Mission Creek Opco, LLC | Magnolia, AR 71753 | Oil & Gas Operator | Jan 2025 |
| 1713 | Mission Energy Inc. | Midland, TX 79702 | Oil & Gas Operator | Jul 2026 |
| 1714 | Mission Exploration, Inc. | Fate, TX 75132 | Oil & Gas Operator | Dec 1987 |
| 1715 | Mission Leasing LTD | Tulsa, OK 74136 | Oil Operator | Dec 2000 |
| 1716 | Mission Oil & Gas | Pawhuska, OK 74056 | Oil Operator | May 2013 |
| 1717 | Mission Oil Company | | Oil & Gas Operator | Apr 2026 |
| 1718 | Mission Resources | | Oil & Gas Operator | Dec 1991 |
| 1719 | Mission Resources Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2008 |
| 1720 | Mission River Systems, Inc. | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Jul 2026 |
| 1721 | Mississippi Resources, LLC Dba MSR Operating, LLC | | Oil & Gas Operator | May 2021 |
| 1722 | Mississippi River Transm. Corp | | Oil & Gas Operator | Sep 2002 |
| 1723 | Mississippi Valley Gas Co | | Oil & Gas Operator | Aug 1984 |
| 1724 | Mississippi Ventures | | Gas Operator | Feb 1992 |
| 1725 | Mississippi Ventures, Inc. | Granbury, TX 76048 | Gas Operator | Jul 1997 |
| 1726 | Missouri Basin Well Service, Inc. | Belfield, ND 58622 | Oil & Gas Operator | Jan 2018 |
| 1727 | Missouri Breaks, LLC | | Oil & Gas Operator | Jun 2011 |
| 1728 | Missouri River R | | Gas Operator | Jun 1993 |
| 1729 | Missouri River Resources ND, LLC | | Oil & Gas Operator | May 2026 |
| 1730 | Missouri River Royalty Corporation | Bismarck, ND 58504 | Oil & Gas Operator | May 2026 |
| 1731 | Mist Prod. & Exploration Corp. | Midland, TX 79702 | Oil & Gas Operator | Jul 2026 |
| 1732 | Mistex Operating, Inc. | Lewisville, TX 75029 | Oil & Gas Operator | Jul 2026 |
| 1733 | Mitch Well Energy Inc | Waterford, PA 16441-8143 | Oil & Gas Operator | Dec 2012 |
| 1734 | Mitchell And R. E. Mitchel | | Oil Operator | Feb 2000 |
| 1735 | Mitchell Cecil D | Haskell, OK 74436-7667 | Oil & Gas Operator | Apr 2020 |
| 1736 | Mitchell Drilling Co. | Iowa Park, TX 76367 | Oil & Gas Operator | Nov 2000 |
| 1737 | Mitchell Ehrlich Oil & Gas, LLC | Austin, TX 78746 | Oil & Gas Operator | Jul 2026 |
| 1738 | Mitchell Energy | | Oil & Gas Operator | Dec 1996 |
| 1739 | Mitchell Energy & Goodrich Oil | | Oil & Gas Operator | Feb 1985 |
| 1740 | Mitchell Energy Company L.P. | Spring, TX 77387 | Oil & Gas Operator | Mar 2008 |
| 1741 | Mitchell Energy Corp | Houston, TX 77002 | Oil & Gas Operator | Aug 2013 |
| 1742 | Mitchell James D | Bartlesville, OK 74006-7610 | Oil Operator | Apr 2026 |
| 1743 | Mitchell M J | | Oil & Gas Operator | Jan 1983 |
| 1744 | Mitchell Martha | Henryetta, OK 74437-0488 | Oil & Gas Operator | Apr 2011 |
| 1745 | Mitchell Oil | | Oil Operator | Dec 2025 |
| 1746 | Mitchell Oil Company | Iowa Park, TX 76367 | Oil & Gas Operator | Nov 2000 |
| 1747 | Mitchell Resources, Inc. | Addison, TX 75001 | Oil & Gas Operator | Aug 2003 |
| 1748 | Mitchell Wyatt B | | Oil Operator | Aug 1993 |
| 1749 | Mitchell, James - Operator | Lamesa, TX 79331 | Oil & Gas Operator | Mar 2008 |
| 1750 | Mitchell-Grossu Oil Co. | | Oil & Gas Operator | Sep 2023 |
| 1751 | Mitchwil Investments LLC | | Oil & Gas Operator | Dec 2019 |
| 1752 | Miti-Mini Inc | Wetumka, OK 74883-6172 | Gas Operator | Jul 2016 |
| 1753 | Mito Resources LLC | Edmond, OK 73013 | Oil & Gas Operator | May 2026 |
| 1754 | Mito Resources TX LLC | Edmond, OK 73013 | Oil & Gas Operator | Jul 2026 |
| 1755 | Mitsui E&P USA LLC | Houston, TX 77056 | Oil & Gas Operator | Jul 2026 |
| 1756 | Miura Petroleum | | Oil Operator | Dec 1992 |
| 1757 | Miura Petroleum Inc | Topeka, KS 66603 | Oil & Gas Operator | May 2006 |
| 1758 | Miway Operations | Russell, KS 67665 | Oil Operator | Aug 1994 |
| 1759 | Mixon, Robert N. | Lometa, TX 76853 | Oil & Gas Operator | Jul 2026 |
| 1760 | Mize Energy Producers, LLC | | Oil & Gas Operator | Jun 2026 |
| 1761 | Mize Operations, LLC. | | Oil & Gas Operator | Dec 2018 |
| 1762 | MJ Energy Company, LLC | Kilgore, TX 75663 | Oil Operator | Jul 2026 |
| 1763 | MJ Energy LLC | Denver, CO 80206 | Oil Operator | Jan 2025 |
| 1764 | MJ Energy, LLC Of Arkansas | | Oil Operator | Jan 2025 |
| 1765 | MJ Goetz Bonding, LLC | Bartlesville, OK 74006 | Oil Operator | Apr 2026 |
| 1766 | MJ Oil, Inc. | Houston, TX 77265 | Oil & Gas Operator | Jul 2026 |
| 1767 | MJB Oil Co. | Iowa Park, TX 76367 | Oil & Gas Operator | Jul 2026 |
| 1768 | MJB Production Company, Inc. | Brownfield, TX 79316 | Oil & Gas Operator | Jul 2026 |
| 1769 | MJM Oil & Gas, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Aug 2003 |
| 1770 | MJM Resources Inc | Norman, OK 73072 | Oil & Gas Operator | May 2026 |
| 1771 | MJT Oil | | Oil Operator | Mar 2026 |
| 1772 | MK Operating Co. | Pampa, TX 79065 | Oil & Gas Operator | Jun 2014 |
| 1773 | MK Operating Company LLC | Cedar Park, TX 78613 | Oil & Gas Operator | Jul 2026 |
| 1774 | Mke Producing Inc | Canton, OH 44735 | Oil & Gas Operator | Dec 2025 |
| 1775 | MKJ Oil Co LLC | Harper, KS 67058 | Oil & Gas Operator | Mar 2026 |
| 1776 | MKM Services Inc | | Oil Operator | Jun 2026 |
| 1777 | MKS Consulting Corporation | Weatherford, TX 76086 | Oil & Gas Operator | Jul 2005 |
| 1778 | MKS Natural Gas Company | Weatherford, TX 76086 | Oil & Gas Operator | Mar 2016 |
| 1779 | ML Resources, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Mar 2008 |
| 1780 | MLB Operating Services, LLC | Tenn Colony, TX 75861 | Oil & Gas Operator | Jul 2026 |
| 1781 | MLC Co., Inc. | Dallas, TX 75201 | Oil & Gas Operator | Dec 1996 |
| 1782 | MLC Operating, LP | Houston, TX 77063 | Oil & Gas Operator | Jul 2026 |
| 1783 | MLC Resources LLC | Kingfisher, OK 73750-0364 | Oil & Gas Operator | Mar 2026 |
| 1784 | MLF, Inc. | Houston, TX 77096 | Gas Operator | Nov 2009 |
| 1785 | MLGW | | Gas Operator | Sep 1984 |
| 1786 | MLT Energy, LLC | Derby, KS 67037 | Oil Operator | Apr 2026 |
| 1787 | MLX Operating, Inc. | Bridgeport, WV 26330 | Oil & Gas Operator | Dec 2021 |
| 1788 | MM China Star Oil Co., LLC | Woodway, TX 76712 | Oil & Gas Operator | Jul 2026 |
| 1789 | MMD Oil Co. | Olney, TX 76374 | Oil & Gas Operator | Dec 2000 |
| 1790 | MMG Oil Company | Buffalo Gap, TX 79508 | Oil & Gas Operator | Aug 2006 |
| 1791 | MMGL East Texas II, LLC | Dallas, TX 75240 | Oil & Gas Operator | Jul 2026 |
| 1792 | MMGL East Texas III, LLC | Dallas, TX 75240 | Oil & Gas Operator | Jul 2026 |
| 1793 | MMGL MT I, LLC | Dallas, TX 75240 | Oil & Gas Operator | Mar 2026 |
| 1794 | MMGL TXPH, LLC | Dallas, TX 75240 | Oil & Gas Operator | Jul 2026 |
| 1795 | Mna Enterprises LTD. Co. | Hobbs, NM 88242 | Oil & Gas Operator | Jan 2026 |
| 1796 | Mo-Jon, Inc. | Edroy, TX 78352 | Oil & Gas Operator | May 1999 |
| 1797 | Mo-Kan Oil Group | St. Louis, MO 63131 | Oil Operator | Sep 2001 |
| 1798 | Mo-Ky | | Oil Operator | Dec 1982 |
| 1799 | Moabb Oil Corp | | Oil & Gas Operator | Apr 1998 |
| 1800 | Mob Corp | Waynesburg, PA 15370-2036 | Gas Operator | Dec 2007 |