| 19001 | Missouri Breaks, LLC | | Oil & Gas Operator | Jun 2011 |
| 19002 | Missouri River R | | Gas Operator | Jun 1993 |
| 19003 | Missouri River Resources ND, LLC | | Oil & Gas Operator | Jun 2026 |
| 19004 | Missouri River Royalty Corporation | Bismarck, ND 58504 | Oil & Gas Operator | Jun 2026 |
| 19005 | Mist Prod. & Exploration Corp. | Midland, TX 79702 | Oil & Gas Operator | Sep 2026 |
| 19006 | Mistex Operating, Inc. | Lewisville, TX 75029 | Oil & Gas Operator | Sep 2026 |
| 19007 | Mitch Well Energy Inc | | Oil & Gas Operator | Dec 2012 |
| 19008 | Mitchell And R. E. Mitchel | | Oil Operator | Feb 2000 |
| 19009 | Mitchell Cecil D | Haskell, OK 74436-7667 | Oil & Gas Operator | Apr 2020 |
| 19010 | Mitchell Drilling Co. | Iowa Park, TX 76367 | Oil & Gas Operator | Nov 2000 |
| 19011 | Mitchell Ehrlich Oil & Gas, LLC | Austin, TX 78746 | Oil & Gas Operator | Sep 2026 |
| 19012 | Mitchell Energy | | Oil & Gas Operator | Dec 1996 |
| 19013 | Mitchell Energy & Goodrich Oil | | Oil & Gas Operator | Feb 1985 |
| 19014 | Mitchell Energy Company L.P. | Spring, TX 77387 | Oil & Gas Operator | Mar 2008 |
| 19015 | Mitchell Energy Corp | Houston, TX 77002 | Oil & Gas Operator | Aug 2013 |
| 19016 | Mitchell M J | | Oil & Gas Operator | Jan 1983 |
| 19017 | Mitchell Martha | Henryetta, OK 74437-0488 | Oil & Gas Operator | Apr 2011 |
| 19018 | Mitchell Oil | | Oil Operator | Dec 2025 |
| 19019 | Mitchell Oil Company | Iowa Park, TX 76367 | Oil & Gas Operator | Nov 2000 |
| 19020 | Mitchell Resources, Inc. | Addison, TX 75001 | Oil & Gas Operator | Aug 2003 |
| 19021 | Mitchell Wyatt B | | Oil Operator | Aug 1993 |
| 19022 | Mitchell, James - Operator | Lamesa, TX 79331 | Oil & Gas Operator | Mar 2008 |
| 19023 | Mitchell-Grossu Oil Co. | | Oil & Gas Operator | Sep 2023 |
| 19024 | Mitchwil Investments LLC | | Oil & Gas Operator | Dec 2019 |
| 19025 | Miti-Mini Inc | Wetumka, OK 74883-6172 | Gas Operator | Jul 2016 |
| 19026 | Mito Resources LLC | Edmond, OK 73013 | Oil & Gas Operator | Jul 2026 |
| 19027 | Mito Resources TX LLC | Edmond, OK 73013 | Oil & Gas Operator | Sep 2026 |
| 19028 | Mitsui E&P USA LLC | Houston, TX 77056 | Oil & Gas Operator | Sep 2026 |
| 19029 | Miura Petroleum | | Oil Operator | Dec 1992 |
| 19030 | Miura Petroleum Inc | Topeka, KS 66603 | Oil & Gas Operator | May 2006 |
| 19031 | Miway Operations | Russell, KS 67665 | Oil Operator | Aug 1994 |
| 19032 | Mixon, Robert N. | Lometa, TX 76853 | Oil & Gas Operator | Sep 2026 |
| 19033 | Mize Energy Producers, LLC | | Oil & Gas Operator | Jul 2026 |
| 19034 | Mize Operations, LLC. | | Oil & Gas Operator | Dec 2018 |
| 19035 | MJ Energy Company, LLC | Kilgore, TX 75663 | Oil Operator | Sep 2026 |
| 19036 | MJ Energy LLC | Denver, CO 80206 | Oil Operator | Jan 2025 |
| 19037 | MJ Energy, LLC Of Arkansas | | Oil Operator | Jan 2025 |
| 19038 | MJ Goetz Bonding, LLC | Bartlesville, OK 74006 | Oil Operator | Jun 2026 |
| 19039 | MJ Oil, Inc. | Houston, TX 77265 | Oil & Gas Operator | Sep 2026 |
| 19040 | MJB Oil Co. | Iowa Park, TX 76367 | Oil & Gas Operator | Sep 2026 |
| 19041 | MJB Production Company, Inc. | Brownfield, TX 79316 | Oil & Gas Operator | Sep 2026 |
| 19042 | MJM Oil & Gas, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Aug 2003 |
| 19043 | MJM Resources Inc | Norman, OK 73072 | Oil & Gas Operator | Jul 2026 |
| 19044 | MJT Oil | | Oil Operator | May 2026 |
| 19045 | MK Operating Co. | Pampa, TX 79065 | Oil & Gas Operator | Jun 2014 |
| 19046 | MK Operating Company LLC | Cedar Park, TX 78613 | Oil & Gas Operator | Sep 2026 |
| 19047 | Mke Producing Inc | Canton, OH 44735 | Oil & Gas Operator | Dec 2025 |
| 19048 | MKJ Oil Co LLC | Harper, KS 67058 | Oil & Gas Operator | May 2026 |
| 19049 | MKM Services Inc | | Oil Operator | Aug 2026 |
| 19050 | MKS Consulting Corporation | Weatherford, TX 76086 | Oil & Gas Operator | Jul 2005 |
| 19051 | MKS Natural Gas Company | Weatherford, TX 76086 | Oil & Gas Operator | Mar 2016 |
| 19052 | ML Resources, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Mar 2008 |
| 19053 | MLB Operating Services, LLC | Tenn Colony, TX 75861 | Oil & Gas Operator | Sep 2026 |
| 19054 | MLC Co., Inc. | Dallas, TX 75201 | Oil & Gas Operator | Dec 1996 |
| 19055 | MLC Operating, LP | Houston, TX 77063 | Oil & Gas Operator | Sep 2026 |
| 19056 | MLC Resources LLC | Kingfisher, OK 73750-0364 | Oil & Gas Operator | Mar 2026 |
| 19057 | MLF, Inc. | Houston, TX 77096 | Gas Operator | Nov 2009 |
| 19058 | MLGW | | Gas Operator | Sep 1984 |
| 19059 | MLT Energy, LLC | Derby, KS 67037 | Oil Operator | Jun 2026 |
| 19060 | MLX Operating, Inc. | Bridgeport, WV 26330 | Oil & Gas Operator | Dec 2021 |
| 19061 | MM China Star Oil Co., LLC | Woodway, TX 76712 | Oil & Gas Operator | Sep 2026 |
| 19062 | MMD Oil Co. | Olney, TX 76374 | Oil & Gas Operator | Dec 2000 |
| 19063 | MMG Oil Company | Buffalo Gap, TX 79508 | Oil & Gas Operator | Aug 2006 |
| 19064 | MMGL East Texas II, LLC | Dallas, TX 75240 | Oil & Gas Operator | Sep 2026 |
| 19065 | MMGL East Texas III, LLC | Dallas, TX 75240 | Oil & Gas Operator | Sep 2026 |
| 19066 | MMGL MT I, LLC | Dallas, TX 75240 | Oil & Gas Operator | Mar 2026 |
| 19067 | MMGL TXPH, LLC | Dallas, TX 75240 | Oil & Gas Operator | Sep 2026 |
| 19068 | Mna Enterprises LTD. Co. | Hobbs, NM 88242 | Oil & Gas Operator | Jan 2026 |
| 19069 | Mo-Jon, Inc. | Edroy, TX 78352 | Oil & Gas Operator | May 1999 |
| 19070 | Mo-Kan Oil Group | St. Louis, MO 63131 | Oil Operator | Sep 2001 |
| 19071 | Mo-Ky | | Oil Operator | Dec 1982 |
| 19072 | Moabb Oil Corp | | Oil & Gas Operator | Apr 1998 |
| 19073 | Mob Corp | Waynesburg, PA 15370-2036 | Gas Operator | Dec 2007 |
| 19074 | Mobay Storage Hub LLC | | Gas Operator | Oct 2008 |
| 19075 | Mobeetie Resource Dev LLC | Perryton, TX 79070 | Oil & Gas Operator | Sep 2026 |
| 19076 | Mobil E&P N.A.-Pel-Tex | | Oil & Gas Operator | Dec 1993 |
| 19077 | Mobil E&P N.A.-WM Scully Et Al | | Oil & Gas Operator | Dec 1993 |
| 19078 | Mobil E&P North America Inc. | | Oil & Gas Operator | Jan 1994 |
| 19079 | Mobil Exp & Prod Us Inc | Houston, TX 77060-1991 | Oil & Gas Operator | May 2001 |
| 19080 | Mobil Expl & Producing North America Inc | | Oil & Gas Operator | Nov 1986 |
| 19081 | Mobil Explor & Prod | Cortez, CO 81321 | Oil & Gas Operator | May 2001 |
| 19082 | Mobil Oil Corpor | | Oil & Gas Operator | Dec 1996 |
| 19083 | Mobil Oil Corporation | Houston, TX 77210 | Oil & Gas Operator | Dec 2007 |
| 19084 | Mobil Oil E & P Southeast Inc | | Oil & Gas Operator | Sep 2013 |
| 19085 | Mobil Oil E&P Se Inc - Pel-Tex | | Oil & Gas Operator | Dec 2005 |
| 19086 | Mobil Oil Expl & Prod S E | | Oil & Gas Operator | Dec 1979 |
| 19087 | Mobil Oil Exploration & Producing Southeast, Inc. | | Oil & Gas Operator | Jun 2026 |
| 19088 | Mobil Oil Exploration & Production North America Inc. | | Oil & Gas Operator | Dec 1996 |
| 19089 | Mobil Petro Vac, Inc. | Duncan, OK 73533 | Oil & Gas Operator | Sep 2026 |
| 19090 | Mobil Producing Texas & New Mexico | Denver City, TX 79323 | Oil & Gas Operator | Jun 2005 |
| 19091 | Mobil Producing TX. & N.M. Inc. | Spring, TX 77389 | Oil & Gas Operator | Feb 2026 |
| 19092 | Mobile Gulf, Inc. | | Oil & Gas Operator | Aug 1985 |
| 19093 | Mobile Petrovac, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2026 |
| 19094 | Mobile Production Systems, Inc. | Austin, TX 78711 | Oil & Gas Operator | Feb 1995 |
| 19095 | Mobley & Davis | | Oil & Gas Operator | Oct 1986 |
| 19096 | Mobley & McCain | | Oil & Gas Operator | Nov 1979 |
| 19097 | Mobley & McCain, Et Al | | Oil & Gas Operator | Jul 1986 |
| 19098 | Mobley Oil Company, Inc. | | Oil & Gas Operator | Feb 1990 |
| 19099 | Mobley Valve Service, Inc. | | Oil & Gas Operator | Nov 2006 |
| 19100 | Mobpar, Inc. | Houston, TX 77219 | Oil & Gas Operator | Sep 2026 |