| 19101 | MKS Natural Gas Company | Weatherford, TX 76086 | Oil & Gas Operator | Mar 2016 |
| 19102 | ML Resources, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Mar 2008 |
| 19103 | MLB Operating Services, LLC | Tenn Colony, TX 75861 | Oil & Gas Operator | Jul 2026 |
| 19104 | MLC Co., Inc. | Dallas, TX 75201 | Oil & Gas Operator | Dec 1996 |
| 19105 | MLC Operating, LP | Houston, TX 77063 | Oil & Gas Operator | Jul 2026 |
| 19106 | MLC Resources LLC | Kingfisher, OK 73750-0364 | Oil & Gas Operator | Mar 2026 |
| 19107 | MLF, Inc. | Houston, TX 77096 | Gas Operator | Nov 2009 |
| 19108 | MLGW | | Gas Operator | Sep 1984 |
| 19109 | MLT Energy, LLC | Derby, KS 67037 | Oil Operator | Apr 2026 |
| 19110 | MLX Operating, Inc. | Bridgeport, WV 26330 | Oil & Gas Operator | Dec 2021 |
| 19111 | MM China Star Oil Co., LLC | Woodway, TX 76712 | Oil & Gas Operator | Jul 2026 |
| 19112 | MMD Oil Co. | Olney, TX 76374 | Oil & Gas Operator | Dec 2000 |
| 19113 | MMG Oil Company | Buffalo Gap, TX 79508 | Oil & Gas Operator | Aug 2006 |
| 19114 | MMGL East Texas II, LLC | Dallas, TX 75240 | Oil & Gas Operator | Jul 2026 |
| 19115 | MMGL East Texas III, LLC | Dallas, TX 75240 | Oil & Gas Operator | Jul 2026 |
| 19116 | MMGL MT I, LLC | Dallas, TX 75240 | Oil & Gas Operator | Mar 2026 |
| 19117 | MMGL TXPH, LLC | Dallas, TX 75240 | Oil & Gas Operator | Jul 2026 |
| 19118 | Mna Enterprises LTD. Co. | Hobbs, NM 88242 | Oil & Gas Operator | Jan 2026 |
| 19119 | Mo-Jon, Inc. | Edroy, TX 78352 | Oil & Gas Operator | May 1999 |
| 19120 | Mo-Kan Oil Group | St. Louis, MO 63131 | Oil Operator | Sep 2001 |
| 19121 | Mo-Ky | | Oil Operator | Dec 1982 |
| 19122 | Moabb Oil Corp | | Oil & Gas Operator | Apr 1998 |
| 19123 | Mob Corp | Waynesburg, PA 15370-2036 | Gas Operator | Dec 2007 |
| 19124 | Mobay Storage Hub LLC | | Gas Operator | Oct 2008 |
| 19125 | Mobeetie Resource Dev LLC | Perryton, TX 79070 | Oil & Gas Operator | Jul 2026 |
| 19126 | Mobil E&P N.A.-Pel-Tex | | Oil & Gas Operator | Dec 1993 |
| 19127 | Mobil E&P N.A.-WM Scully Et Al | | Oil & Gas Operator | Dec 1993 |
| 19128 | Mobil E&P North America Inc. | | Oil & Gas Operator | Jan 1994 |
| 19129 | Mobil Exp & Prod Us Inc | Houston, TX 77060-1991 | Oil & Gas Operator | May 2001 |
| 19130 | Mobil Expl & Producing North America Inc | | Oil & Gas Operator | Nov 1986 |
| 19131 | Mobil Explor & Prod | Cortez, CO 81321 | Oil & Gas Operator | May 2001 |
| 19132 | Mobil Oil Corpor | | Oil & Gas Operator | Dec 1996 |
| 19133 | Mobil Oil Corporation | Houston, TX 77210 | Oil & Gas Operator | Dec 2007 |
| 19134 | Mobil Oil E & P Southeast Inc | | Oil & Gas Operator | Sep 2013 |
| 19135 | Mobil Oil E&P Se Inc - Pel-Tex | | Oil & Gas Operator | Dec 2005 |
| 19136 | Mobil Oil Expl & Prod S E | | Oil & Gas Operator | Dec 1979 |
| 19137 | Mobil Oil Exploration & Producing Southeast, Inc. | | Oil & Gas Operator | May 2026 |
| 19138 | Mobil Oil Exploration & Production North America Inc. | | Oil & Gas Operator | Dec 1996 |
| 19139 | Mobil Petro Vac, Inc. | Duncan, OK 73533 | Oil & Gas Operator | Jul 2026 |
| 19140 | Mobil Producing Texas & New Mexico | Denver City, TX 79323 | Oil & Gas Operator | Jun 2005 |
| 19141 | Mobil Producing TX. & N.M. Inc. | Spring, TX 77389 | Oil & Gas Operator | Feb 2026 |
| 19142 | Mobile Gulf, Inc. | | Oil & Gas Operator | Aug 1985 |
| 19143 | Mobile Petrovac, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Jul 2026 |
| 19144 | Mobile Production Systems, Inc. | Austin, TX 78711 | Oil & Gas Operator | Feb 1995 |
| 19145 | Mobley & Davis | | Oil & Gas Operator | Oct 1986 |
| 19146 | Mobley & McCain | | Oil & Gas Operator | Nov 1979 |
| 19147 | Mobley & McCain, Et Al | | Oil & Gas Operator | Jul 1986 |
| 19148 | Mobley Oil Company, Inc. | | Oil & Gas Operator | Feb 1990 |
| 19149 | Mobley Valve Service, Inc. | | Oil & Gas Operator | Nov 2006 |
| 19150 | Mobpar, Inc. | Houston, TX 77219 | Oil & Gas Operator | Jul 2026 |
| 19151 | Mobreal Oil Inc | Wilmington, DE 19808 | Oil & Gas Operator | Dec 1989 |
| 19152 | Mockingbird Oil, Inc. (I) | Spring, TX 77389 | Oil & Gas Operator | Jul 2026 |
| 19153 | Moco Oil Inc | | Oil Operator | May 1984 |
| 19154 | Moco Operating Company | | Oil & Gas Operator | Mar 2002 |
| 19155 | Mode Oil & Gasdev LTD12/21/Ofb 9-98 | | Oil & Gas Operator | May 2013 |
| 19156 | Modena Operating LLC | Houston, TX 77057 | Oil & Gas Operator | Jul 2026 |
| 19157 | Modern Exploration, Inc. | Sherman, TX 75090 | Oil & Gas Operator | Jul 2026 |
| 19158 | Modus Inc. | | Oil & Gas Operator | May 2026 |
| 19159 | Moenning, Vernie | Electra, TX 76360 | Oil & Gas Operator | Aug 2025 |
| 19160 | Moff Oil Company | Pratt, KS 67124 | Gas Operator | Apr 1988 |
| 19161 | Moffitt W G Trust | Fort Gibson, OK 74434-4258 | Gas Operator | Nov 2019 |
| 19162 | Mogo Operating, LLC | Norman, OK 73069 | Oil & Gas Operator | May 2026 |
| 19163 | Mogo Reagan, LLC | Cut Bank, MT 59427 | Oil & Gas Operator | May 2026 |
| 19164 | Mogul Energy Corp | Los Angeles, CA 90024 | Oil & Gas Operator | Jan 2001 |
| 19165 | Mogul Energy International, Inc. | Houston, TX 77042 | Oil & Gas Operator | Oct 2017 |
| 19166 | Mogul Operating LLC | St Pete Beach, FL 33706 | Oil Operator | Jul 2026 |
| 19167 | Mogul Resources, LLC | Cisco, TX 76437 | Oil & Gas Operator | Jul 2026 |
| 19168 | Mohawk Petroleum | | Oil & Gas Operator | Jan 1995 |
| 19169 | Mohican Exploration, LLC | Graham, TX 76450 | Oil & Gas Operator | Oct 2024 |
| 19170 | Mohican Oil & Gas, L.L.C. | Corpus Chrsti, TX 78476 | Oil & Gas Operator | Apr 2013 |
| 19171 | Mohican Operating, L.L.C. | Corpus Christ, TX 78401 | Oil & Gas Operator | Apr 2021 |
| 19172 | Mohr, Steve | Maize, KS 67101 | Oil Operator | Aug 2022 |
| 19173 | Mojac Energy Corp. | Houston, TX 77056 | Oil & Gas Operator | Dec 1997 |
| 19174 | Mojave Operating Company | Midland, TX 79702 | Oil & Gas Operator | Nov 2002 |
| 19175 | Mojave Resources, LLC | New Braunfels, TX 78132 | Oil Operator | Jul 2026 |
| 19176 | Mojo Exploration & Production, LLC | Rockdale, TX 76567 | Oil Operator | Jul 2026 |
| 19177 | Mokan Capital, LLC | Spicewood, TX 78669 | Oil Operator | Jul 2026 |
| 19178 | Molder, Tom | Imperial, TX 79743 | Oil & Gas Operator | Jul 2026 |
| 19179 | Mole Hole Prod. | Bridgeport, TX 76426 | Oil Operator | Jul 2026 |
| 19180 | Mole Operating Co., Inc. | | Oil & Gas Operator | Oct 1983 |
| 19181 | Moleco, LLC | West Hills, CA 91308 | Oil Operator | Jul 2026 |
| 19182 | Moleo Gas Corp. | San Angelo, TX 76902 | Oil & Gas Operator | Apr 2018 |
| 19183 | Molitor Oil, Inc. | Wichita, KS 67205 | Oil & Gas Operator | Mar 2026 |
| 19184 | Mollenkopf Mark | Anadarko, OK 73005 | Oil Operator | Feb 2026 |
| 19185 | Moller, Herbert T. | Wichita Falls, TX 76301 | Oil & Gas Operator | Aug 2003 |
| 19186 | Mollett Oil Productions, LLC | Thelma, KY 41260 | Oil Operator | Dec 2020 |
| 19187 | Molly Oil & Gas, LLC | Dallas, TX 75209 | Oil & Gas Operator | Jul 2026 |
| 19188 | Molopo Energy Texas, LLC | Canada, 00100 | Oil & Gas Operator | Jan 2015 |
| 19189 | Molsdorf Ag LLC | McAllen, TX 78503 | Oil Operator | Sep 2013 |
| 19190 | Molz Oil Company Inc | Kiowa, KS 67070 | Oil & Gas Operator | May 2026 |
| 19191 | Momentum Energy Corporation | Austin, TX 78746 | Oil & Gas Operator | Jul 2026 |
| 19192 | Momentum Energy, LLC | Midland, TX 79702 | Oil & Gas Operator | Feb 2004 |
| 19193 | Momentum Oil & Gas, LLC | The Woodlands, TX 77382 | Oil & Gas Operator | May 2015 |
| 19194 | Momentum Oil Company | Albany, TX 76430 | Oil & Gas Operator | May 2003 |
| 19195 | Momentum Operating Co., Inc. | Albany, TX 76430 | Oil & Gas Operator | Jul 2026 |
| 19196 | Momentum Production Corp. | Baytown, TX 77521 | Oil & Gas Operator | Jul 2026 |
| 19197 | Moms Oil & Gas LLC | Nowata, OK 74048 | Oil & Gas Operator | Mar 2023 |
| 19198 | Mon Corp. | Pampa, TX 79066 | Oil & Gas Operator | Jul 2026 |
| 19199 | Mon-Oil Inc | | Oil & Gas Operator | Apr 1996 |
| 19200 | Monadnock Resources Op Co, LLC | Dallas, TX 75209 | Oil & Gas Operator | Jan 2021 |