| 19701 | Mission River Systems, Inc. | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Apr 2025 |
| 19702 | Mississippi Resources, LLC Dba MSR Operating, LLC | | Oil & Gas Operator | May 2021 |
| 19703 | Mississippi River Transm. Corp | | Oil & Gas Operator | Sep 2002 |
| 19704 | Mississippi Valley Gas Co | | Oil & Gas Operator | Aug 1984 |
| 19705 | Mississippi Ventures | | Gas Operator | Feb 1992 |
| 19706 | Mississippi Ventures, Inc. | Granbury, TX 76048 | Gas Operator | Jul 1997 |
| 19707 | Missouri Basin Well Service, Inc. | Belfield, ND 58622 | Oil & Gas Operator | Jan 2018 |
| 19708 | Missouri Breaks, LLC | | Oil & Gas Operator | Jun 2011 |
| 19709 | Missouri River R | | Gas Operator | Jun 1993 |
| 19710 | Missouri River Resources ND, LLC | | Oil & Gas Operator | Feb 2025 |
| 19711 | Missouri River Royalty Corporation | Bismarck, ND 58504 | Oil & Gas Operator | Feb 2025 |
| 19712 | Mist Prod. & Exploration Corp. | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 19713 | Mistex Operating, Inc. | Lewisville, TX 75029 | Oil & Gas Operator | Apr 2025 |
| 19714 | Mitch Well Energy Inc | Waterford, PA 16441-8143 | Oil & Gas Operator | Dec 2012 |
| 19715 | Mitchell And R. E. Mitchel | | Oil Operator | Feb 2000 |
| 19716 | Mitchell Cecil D | Haskell, OK 74436-7667 | Oil & Gas Operator | Apr 2020 |
| 19717 | Mitchell Drilling Co. | Iowa Park, TX 76367 | Oil & Gas Operator | Nov 2000 |
| 19718 | Mitchell Ehrlich Oil & Gas, LLC | Austin, TX 78746 | Oil & Gas Operator | Apr 2025 |
| 19719 | Mitchell Energy | | Oil & Gas Operator | Dec 1996 |
| 19720 | Mitchell Energy & Goodrich Oil | | Oil & Gas Operator | Feb 1985 |
| 19721 | Mitchell Energy Company L.P. | Spring, TX 77387 | Oil & Gas Operator | Mar 2008 |
| 19722 | Mitchell Energy Corp | Houston, TX 77002 | Oil & Gas Operator | Aug 2013 |
| 19723 | Mitchell James D | Bartlesville, OK 74006-7610 | Oil Operator | Jan 2025 |
| 19724 | Mitchell M J | | Oil & Gas Operator | Jan 1983 |
| 19725 | Mitchell Martha | Henryetta, OK 74437-0488 | Oil & Gas Operator | Apr 2011 |
| 19726 | Mitchell Oil | | Oil Operator | Dec 2024 |
| 19727 | Mitchell Oil Company | Iowa Park, TX 76367 | Oil & Gas Operator | Nov 2000 |
| 19728 | Mitchell Resources, Inc. | Addison, TX 75001 | Oil & Gas Operator | Aug 2003 |
| 19729 | Mitchell Wyatt B | | Oil Operator | Aug 1993 |
| 19730 | Mitchell, James - Operator | Lamesa, TX 79331 | Oil & Gas Operator | Mar 2008 |
| 19731 | Mitchell-Grossu Oil Co. | | Oil & Gas Operator | Sep 2023 |
| 19732 | Mitchwil Investments LLC | | Oil & Gas Operator | Dec 2019 |
| 19733 | Miti-Mini Inc | Wetumka, OK 74883-6172 | Gas Operator | Jul 2016 |
| 19734 | Mito Resources LLC | Edmond, OK 73013 | Oil & Gas Operator | Feb 2025 |
| 19735 | Mito Resources TX LLC | Edmond, OK 73013 | Oil & Gas Operator | Apr 2025 |
| 19736 | Mitsui E&P USA LLC | Houston, TX 77056 | Oil & Gas Operator | Apr 2025 |
| 19737 | Miura Petroleum | | Oil Operator | Dec 1992 |
| 19738 | Miura Petroleum, Inc. | Topeka, KS 66603 | Oil & Gas Operator | May 2006 |
| 19739 | Miway Operations | Russell, KS 67665 | Oil Operator | Aug 1994 |
| 19740 | Mixon, Robert N. | Lometa, TX 76853 | Oil & Gas Operator | Apr 2025 |
| 19741 | Mize Energy Producers, LLC | | Oil & Gas Operator | Nov 2024 |
| 19742 | Mize Operations, LLC. | | Oil & Gas Operator | Dec 2018 |
| 19743 | MJ Energy Company, LLC | Kilgore, TX 75663 | Oil Operator | Apr 2025 |
| 19744 | MJ Energy, LLC | Denver, CO 80206 | Oil Operator | Jan 2025 |
| 19745 | MJ Energy, LLC Of Arkansas | | Oil Operator | Jan 2025 |
| 19746 | MJ Goetz Bonding, LLC | Bartlesville, OK 74006 | Oil Operator | Jan 2025 |
| 19747 | MJ Oil Company | Minerva, OH 44657 | Oil & Gas Operator | Dec 2008 |
| 19748 | MJ Oil, Inc. | Houston, TX 77265 | Oil & Gas Operator | Apr 2025 |
| 19749 | MJB Oil Co. | Iowa Park, TX 76367 | Oil & Gas Operator | Apr 2025 |
| 19750 | MJB Production Company, Inc. | Brownfield, TX 79316 | Oil & Gas Operator | Apr 2025 |
| 19751 | MJM Oil & Gas, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Aug 2003 |
| 19752 | MJM Resources Inc | Norman, OK 73072 | Oil & Gas Operator | Feb 2025 |
| 19753 | MJT Oil | | Oil Operator | Dec 2024 |
| 19754 | MK Operating Co. | Pampa, TX 79065 | Oil & Gas Operator | Jun 2014 |
| 19755 | MK Operating Company LLC | Cedar Park, TX 78613 | Oil & Gas Operator | Apr 2025 |
| 19756 | Mka Oil Properties | Midland, TX 79701 | Oil & Gas Operator | Sep 1997 |
| 19757 | Mke Producing Inc | Canton, OH 44735 | Oil & Gas Operator | Dec 2023 |
| 19758 | MKG Marketing Co | Oklahoma City, OK 73102 | Gas Operator | Feb 2006 |
| 19759 | MKJ Oil Co LLC | Harper, KS 67058 | Oil & Gas Operator | Dec 2024 |
| 19760 | MKS Consulting Corporation | Weatherford, TX 76086 | Oil & Gas Operator | Jul 2005 |
| 19761 | MKS Natural Gas Company | Weatherford, TX 76086 | Oil & Gas Operator | Mar 2016 |
| 19762 | ML Resources, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Mar 2008 |
| 19763 | MLB Operating Services, LLC | Tenn Colony, TX 75861 | Oil & Gas Operator | Apr 2025 |
| 19764 | MLC Co., Inc. | Dallas, TX 75201 | Oil & Gas Operator | Dec 1996 |
| 19765 | MLC Operating, LP | Houston, TX 77063 | Oil & Gas Operator | Apr 2025 |
| 19766 | MLC Resources LLC | Kingfisher, OK 73750-0364 | Oil & Gas Operator | Jan 2025 |
| 19767 | MLF, Inc. | Houston, TX 77096 | Gas Operator | Nov 2009 |
| 19768 | MLGW | | Gas Operator | Sep 1984 |
| 19769 | MLT Energy, LLC | Derby, KS 67037 | Oil Operator | Jan 2025 |
| 19770 | MLX Operating, Inc. | Bridgeport, WV 26330 | Oil & Gas Operator | Dec 2021 |
| 19771 | MM China Star Oil Co., LLC | Woodway, TX 76712 | Oil & Gas Operator | Apr 2025 |
| 19772 | MMD Oil Co. | Olney, TX 76374 | Oil & Gas Operator | Dec 2000 |
| 19773 | MMG Oil Company | Buffalo Gap, TX 79508 | Oil & Gas Operator | Aug 2006 |
| 19774 | MMGL East Texas II, LLC | Dallas, TX 75240 | Oil & Gas Operator | Apr 2025 |
| 19775 | MMGL East Texas III, LLC | Dallas, TX 75240 | Oil & Gas Operator | Apr 2025 |
| 19776 | MMGL TXPH, LLC | Dallas, TX 75240 | Oil & Gas Operator | Apr 2025 |
| 19777 | Mna Enterprises LTD. Co. | Hobbs, NM 88242 | Oil & Gas Operator | Apr 2025 |
| 19778 | Mo-Jon, Inc. | Edroy, TX 78352 | Oil & Gas Operator | May 1999 |
| 19779 | Mo-Kan Oil Group | St. Louis, MO 63131 | Oil Operator | Sep 2001 |
| 19780 | Mo-Ky | | Oil Operator | Dec 1982 |
| 19781 | Moabb Oil Corp | | Oil & Gas Operator | Apr 1998 |
| 19782 | Mob Corp | Waynesburg, PA 15370-2036 | Gas Operator | Dec 2007 |
| 19783 | Mobay Storage Hub LLC | | Gas Operator | Oct 2008 |
| 19784 | Mobeetie Resource Dev LLC | Booker, TX 79005 | Oil & Gas Operator | Apr 2025 |
| 19785 | Mobil E&P N.A.-Pel-Tex | | Oil & Gas Operator | Dec 1993 |
| 19786 | Mobil E&P N.A.-WM Scully Et Al | | Oil & Gas Operator | Dec 1993 |
| 19787 | Mobil E&P North America Inc. | | Oil & Gas Operator | Jan 1994 |
| 19788 | Mobil Exp & Prod Us Inc | Houston, TX 77060-1991 | Oil & Gas Operator | May 2001 |
| 19789 | Mobil Expl & Producing North America Inc | | Oil & Gas Operator | Nov 1986 |
| 19790 | Mobil Explor & Prod | Cortez, CO 81321 | Oil & Gas Operator | May 2001 |
| 19791 | Mobil Oil Corpor | | Oil & Gas Operator | Dec 1996 |
| 19792 | Mobil Oil Corporation | Houston, TX 77210 | Oil & Gas Operator | Jun 2016 |
| 19793 | Mobil Oil E & P Southeast Inc | | Oil & Gas Operator | Sep 2013 |
| 19794 | Mobil Oil E&P Se Inc - Pel-Tex | | Oil & Gas Operator | Dec 2005 |
| 19795 | Mobil Oil Expl & Prod S E | | Oil & Gas Operator | Dec 1979 |
| 19796 | Mobil Oil Exploration & Producing Southeast, Inc. | | Oil & Gas Operator | Jan 2025 |
| 19797 | Mobil Oil Exploration & Production North America Inc. | | Oil & Gas Operator | Dec 1996 |
| 19798 | Mobil Petro Vac, Inc. | Duncan, OK 73533 | Oil & Gas Operator | Apr 2025 |
| 19799 | Mobil Producing Texas & New Mexico | Denver City, TX 79323 | Oil & Gas Operator | Jun 2005 |
| 19800 | Mobil Producing TX. & N.M. Inc. | Spring, TX 77389 | Oil & Gas Operator | Apr 2025 |