| 7201 | Mineral Resources, Incorporated | Lewisville, TX 75029 | Oil & Gas Operator | Jul 2025 |
| 7202 | Mineral Technologies, Inc. | Midland, TX 79704 | Oil & Gas Operator | Jul 2025 |
| 7203 | Minexprod LLC | Katy, TX 77494 | Oil Operator | Jul 2025 |
| 7204 | Mingus Oil & Gas | Mingus, TX 76463 | Oil & Gas Operator | Jul 2025 |
| 7205 | Minihan Oil & Gas Corporation | Midland, TX 79704 | Oil & Gas Operator | Apr 2004 |
| 7206 | Minihan Oil & Gas LTD. | Denver, CO 80202 | Oil & Gas Operator | Jul 2006 |
| 7207 | Mink, Jay, Oil Co. | Electra, TX 76360 | Oil & Gas Operator | Aug 2017 |
| 7208 | Minuja Oil And Gas LLC | Corpus Christi, TX 78401 | Oil & Gas Operator | Sep 1996 |
| 7209 | Minute Hand LLC | Brenham, TX 77834 | Oil & Gas Operator | Jul 2025 |
| 7210 | Minuteman Energy, LLC | Georgetown, TX 78633 | Oil & Gas Operator | Feb 2015 |
| 7211 | Minyak Producing Company, Inc. | Sabine Pass, TX 77655 | Oil & Gas Operator | Jul 2025 |
| 7212 | Miocene Oil & Gas, Inc. | Englewood, CO 80155 | Oil & Gas Operator | Jul 1998 |
| 7213 | Miocene Oil & Gas, LTD. | Englewood, CO 80110 | Oil & Gas Operator | Jul 2025 |
| 7214 | Mir-Tex Energy Corp. | Mirando City, TX 78369 | Oil & Gas Operator | Aug 2003 |
| 7215 | Miramar Petroleum, Inc. | Corpus Chrsti, TX 78463 | Oil & Gas Operator | Sep 2017 |
| 7216 | Miranda Energy Corporation | Midland, TX 79705 | Oil & Gas Operator | Jun 2016 |
| 7217 | Mirando Crude Oil Co. | Luling, TX 78648 | Oil & Gas Operator | Jul 1994 |
| 7218 | Mirando Resource, L.L.C. | Freer, TX 78357 | Oil & Gas Operator | Jul 2025 |
| 7219 | Miresco, Inc. | Houston, TX 77060 | Oil & Gas Operator | Jan 1995 |
| 7220 | Misener Operating, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 2010 |
| 7221 | Mission Energy Inc. | Midland, TX 79702 | Oil & Gas Operator | Jul 2025 |
| 7222 | Mission Exploration, Inc. | Tolar, TX 76476 | Oil & Gas Operator | Dec 1987 |
| 7223 | Mission Resources Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2008 |
| 7224 | Mission River Systems, Inc. | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Jul 2025 |
| 7225 | Mississippi Ventures, Inc. | Granbury, TX 76048 | Gas Operator | Jul 1997 |
| 7226 | Mist Prod. & Exploration Corp. | Midland, TX 79702 | Oil & Gas Operator | Jul 2025 |
| 7227 | Mistex Operating, Inc. | Lewisville, TX 75029 | Oil & Gas Operator | Jul 2025 |
| 7228 | Mitchell Drilling Co. | Iowa Park, TX 76367 | Oil & Gas Operator | Nov 2000 |
| 7229 | Mitchell Ehrlich Oil & Gas, LLC | Austin, TX 78746 | Oil & Gas Operator | Jul 2025 |
| 7230 | Mitchell Energy Company L.P. | Spring, TX 77387 | Oil & Gas Operator | Mar 2008 |
| 7231 | Mitchell Energy Corp | Houston, TX 77002 | Oil & Gas Operator | Aug 2013 |
| 7232 | Mitchell Oil Company | Iowa Park, TX 76367 | Oil & Gas Operator | Nov 2000 |
| 7233 | Mitchell Resources, Inc. | Addison, TX 75001 | Oil & Gas Operator | Aug 2003 |
| 7234 | Mitchell, James - Operator | Lamesa, TX 79331 | Oil & Gas Operator | Mar 2008 |
| 7235 | Mito Resources TX LLC | Edmond, OK 73013 | Oil & Gas Operator | Jul 2025 |
| 7236 | Mitsui E&P USA LLC | Houston, TX 77056 | Oil & Gas Operator | Jul 2025 |
| 7237 | Mixon, Robert N. | Lometa, TX 76853 | Oil & Gas Operator | Jul 2025 |
| 7238 | MJ Energy Company, LLC | Kilgore, TX 75663 | Oil Operator | Jul 2025 |
| 7239 | MJ Oil Company | Minerva, OH 44657 | Oil & Gas Operator | Dec 2008 |
| 7240 | MJ Oil, Inc. | Houston, TX 77265 | Oil & Gas Operator | Jul 2025 |
| 7241 | MJB Oil Co. | Iowa Park, TX 76367 | Oil & Gas Operator | Jul 2025 |
| 7242 | MJB Production Company, Inc. | Brownfield, TX 79316 | Oil & Gas Operator | Jul 2025 |
| 7243 | MJM Oil & Gas, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Aug 2003 |
| 7244 | MK Operating Co. | Pampa, TX 79065 | Oil & Gas Operator | Jun 2014 |
| 7245 | MK Operating Company LLC | Cedar Park, TX 78613 | Oil & Gas Operator | Jul 2025 |
| 7246 | MKS Consulting Corporation | Weatherford, TX 76086 | Oil & Gas Operator | Jul 2005 |
| 7247 | MKS Natural Gas Company | Weatherford, TX 76086 | Oil & Gas Operator | Mar 2016 |
| 7248 | ML Resources, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Mar 2008 |
| 7249 | MLB Operating Services, LLC | Tenn Colony, TX 75861 | Oil & Gas Operator | Jul 2025 |
| 7250 | MLC Co., Inc. | Dallas, TX 75201 | Oil & Gas Operator | Dec 1996 |
| 7251 | MLC Operating, LP | Houston, TX 77063 | Oil & Gas Operator | Jul 2025 |
| 7252 | MLF, Inc. | Houston, TX 77096 | Gas Operator | Nov 2009 |
| 7253 | MM China Star Oil Co., LLC | Woodway, TX 76712 | Oil & Gas Operator | Jul 2025 |
| 7254 | MMD Oil Co. | Olney, TX 76374 | Oil & Gas Operator | Dec 2000 |
| 7255 | MMG Oil Company | Buffalo Gap, TX 79508 | Oil & Gas Operator | Aug 2006 |
| 7256 | MMGL East Texas II, LLC | Dallas, TX 75240 | Oil & Gas Operator | Jul 2025 |
| 7257 | MMGL East Texas III, LLC | Dallas, TX 75240 | Oil & Gas Operator | Jul 2025 |
| 7258 | MMGL TXPH, LLC | Dallas, TX 75240 | Oil & Gas Operator | Jul 2025 |
| 7259 | Mna Enterprises LTD. Co. | Hobbs, NM 88242 | Oil & Gas Operator | May 2025 |
| 7260 | Mo-Jon, Inc. | Edroy, TX 78352 | Oil & Gas Operator | May 1999 |
| 7261 | Mobeetie Resource Dev LLC | Perryton, TX 79070 | Oil & Gas Operator | Jul 2025 |
| 7262 | Mobil Oil Corporation | Houston, TX 77210 | Oil & Gas Operator | Jun 2016 |
| 7263 | Mobil Petro Vac, Inc. | Duncan, OK 73533 | Oil & Gas Operator | Jul 2025 |
| 7264 | Mobil Producing TX. & N.M. Inc. | Spring, TX 77389 | Oil & Gas Operator | Jul 2025 |
| 7265 | Mobile Petrovac, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Jul 2025 |
| 7266 | Mobile Production Systems, Inc. | Austin, TX 78711 | Oil & Gas Operator | Feb 1995 |
| 7267 | Mobpar, Inc. | Houston, TX 77219 | Oil & Gas Operator | Jul 2025 |
| 7268 | Mockingbird Oil, Inc. (I) | Spring, TX 77389 | Oil & Gas Operator | Jul 2025 |
| 7269 | Modena Operating LLC | Houston, TX 77057 | Oil & Gas Operator | Jul 2025 |
| 7270 | Modern Exploration, Inc. | Sherman, TX 75090 | Oil & Gas Operator | Jul 2025 |
| 7271 | Moenning, Vernie | Electra, TX 76360 | Oil & Gas Operator | Jul 2025 |
| 7272 | Mogul Energy International, Inc. | Houston, TX 77042 | Oil & Gas Operator | Oct 2017 |
| 7273 | Mogul Operating LLC | St Petersburg, FL 33706 | Oil Operator | Jul 2025 |
| 7274 | Mogul Resources, LLC | Cisco, TX 76437 | Oil & Gas Operator | Jul 2025 |
| 7275 | Mohican Exploration, LLC | Graham, TX 76450 | Oil & Gas Operator | Oct 2024 |
| 7276 | Mohican Oil & Gas, L.L.C. | Corpus Chrsti, TX 78476 | Oil & Gas Operator | Apr 2013 |
| 7277 | Mohican Operating, L.L.C. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2021 |
| 7278 | Mojac Energy Corp. | Houston, TX 77056 | Oil & Gas Operator | Dec 1997 |
| 7279 | Mojave Operating Company | Midland, TX 79702 | Oil & Gas Operator | Nov 2002 |
| 7280 | Mojave Resources, LLC | New Braunfels, TX 78132 | Oil Operator | Jul 2025 |
| 7281 | Mokan Capital, LLC | Spicewood, TX 78669 | Oil Operator | Jul 2025 |
| 7282 | Molder, Tom | Imperial, TX 79743 | Oil & Gas Operator | Jul 2025 |
| 7283 | Mole Hole Prod. | Bridgeport, TX 76426 | Oil Operator | Jul 2025 |
| 7284 | Moleco, LLC | Santa Anna, TX 76878 | Oil Operator | Jul 2025 |
| 7285 | Moleo Gas Corp. | San Angelo, TX 76902 | Oil & Gas Operator | Apr 2018 |
| 7286 | Moller, Herbert T. | Wichita Falls, TX 76301 | Oil & Gas Operator | Aug 2003 |
| 7287 | Molly Oil & Gas, LLC | Dallas, TX 75209 | Oil & Gas Operator | Jul 2025 |
| 7288 | Molopo Energy Texas, LLC | Canada, 00100 | Oil & Gas Operator | Jan 2015 |
| 7289 | Molsdorf Ag LLC | McAllen, TX 78503 | Oil Operator | Sep 2013 |
| 7290 | Momentum Energy Corporation | Austin, TX 78746 | Oil & Gas Operator | Jul 2025 |
| 7291 | Momentum Energy, LLC | Midland, TX 79702 | Oil & Gas Operator | Feb 2004 |
| 7292 | Momentum Oil & Gas, LLC | The Woodlands, TX 77382 | Oil & Gas Operator | May 2015 |
| 7293 | Momentum Oil Company | Albany, TX 76430 | Oil & Gas Operator | May 2003 |
| 7294 | Momentum Operating Co., Inc. | Albany, TX 76430 | Oil & Gas Operator | Jul 2025 |
| 7295 | Momentum Production Corp. | Baytown, TX 77521 | Oil & Gas Operator | Jul 2025 |
| 7296 | Mon Corp. | Pampa, TX 79066 | Oil & Gas Operator | Jul 2025 |
| 7297 | Monadnock Resources Op Co, LLC | Dallas, TX 75209 | Oil & Gas Operator | Jan 2021 |
| 7298 | Monadnock Resources, LLC | Addison, TX 75001 | Oil & Gas Operator | May 2020 |
| 7299 | Monarch Operating Company | Graham, TX 76450 | Oil & Gas Operator | Jun 2006 |
| 7300 | Moncrief W A Jr | Fort Worth, TX 76102 | Oil & Gas Operator | May 2025 |