| 7201 | Misener Operating, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 2010 |
| 7202 | Mission Energy Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2026 |
| 7203 | Mission Exploration, Inc. | Fate, TX 75132 | Oil & Gas Operator | Dec 1987 |
| 7204 | Mission Resources Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2008 |
| 7205 | Mission River Systems, Inc. | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Apr 2026 |
| 7206 | Mississippi Ventures, Inc. | Granbury, TX 76048 | Gas Operator | Jul 1997 |
| 7207 | Mist Prod. & Exploration Corp. | Midland, TX 79702 | Oil & Gas Operator | Apr 2026 |
| 7208 | Mistex Operating, Inc. | Lewisville, TX 75029 | Oil & Gas Operator | Apr 2026 |
| 7209 | Mitchell Drilling Co. | Iowa Park, TX 76367 | Oil & Gas Operator | Nov 2000 |
| 7210 | Mitchell Ehrlich Oil & Gas, LLC | Austin, TX 78746 | Oil & Gas Operator | Apr 2026 |
| 7211 | Mitchell Energy Company L.P. | Spring, TX 77387 | Oil & Gas Operator | Mar 2008 |
| 7212 | Mitchell Energy Corp | Houston, TX 77002 | Oil & Gas Operator | Aug 2013 |
| 7213 | Mitchell Oil Company | Iowa Park, TX 76367 | Oil & Gas Operator | Nov 2000 |
| 7214 | Mitchell Resources, Inc. | Addison, TX 75001 | Oil & Gas Operator | Aug 2003 |
| 7215 | Mitchell, James - Operator | Lamesa, TX 79331 | Oil & Gas Operator | Mar 2008 |
| 7216 | Mito Resources TX LLC | Edmond, OK 73013 | Oil & Gas Operator | Apr 2026 |
| 7217 | Mitsui E&P USA LLC | Houston, TX 77056 | Oil & Gas Operator | Apr 2026 |
| 7218 | Mixon, Robert N. | Lometa, TX 76853 | Oil & Gas Operator | Apr 2026 |
| 7219 | MJ Energy Company, LLC | Kilgore, TX 75663 | Oil Operator | Apr 2026 |
| 7220 | MJ Oil, Inc. | Houston, TX 77265 | Oil & Gas Operator | Apr 2026 |
| 7221 | MJB Oil Co. | Iowa Park, TX 76367 | Oil & Gas Operator | Apr 2026 |
| 7222 | MJB Production Company, Inc. | Brownfield, TX 79316 | Oil & Gas Operator | Apr 2026 |
| 7223 | MJM Oil & Gas, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Aug 2003 |
| 7224 | MK Operating Co. | Pampa, TX 79065 | Oil & Gas Operator | Jun 2014 |
| 7225 | MK Operating Company LLC | Cedar Park, TX 78613 | Oil & Gas Operator | Apr 2026 |
| 7226 | MKS Consulting Corporation | Weatherford, TX 76086 | Oil & Gas Operator | Jul 2005 |
| 7227 | MKS Natural Gas Company | Weatherford, TX 76086 | Oil & Gas Operator | Mar 2016 |
| 7228 | ML Resources, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Mar 2008 |
| 7229 | MLB Operating Services, LLC | Tenn Colony, TX 75861 | Oil & Gas Operator | Apr 2026 |
| 7230 | MLC Co., Inc. | Dallas, TX 75201 | Oil & Gas Operator | Dec 1996 |
| 7231 | MLC Operating, LP | Houston, TX 77063 | Oil & Gas Operator | Apr 2026 |
| 7232 | MLF, Inc. | Houston, TX 77096 | Gas Operator | Nov 2009 |
| 7233 | MM China Star Oil Co., LLC | Woodway, TX 76712 | Oil & Gas Operator | Apr 2026 |
| 7234 | MMD Oil Co. | Olney, TX 76374 | Oil & Gas Operator | Dec 2000 |
| 7235 | MMG Oil Company | Buffalo Gap, TX 79508 | Oil & Gas Operator | Aug 2006 |
| 7236 | MMGL East Texas II, LLC | Dallas, TX 75240 | Oil & Gas Operator | Apr 2026 |
| 7237 | MMGL East Texas III, LLC | Dallas, TX 75240 | Oil & Gas Operator | Apr 2026 |
| 7238 | MMGL TXPH, LLC | Dallas, TX 75240 | Oil & Gas Operator | Apr 2026 |
| 7239 | Mna Enterprises LTD. Co. | Hobbs, NM 88242 | Oil & Gas Operator | Jan 2026 |
| 7240 | Mo-Jon, Inc. | Edroy, TX 78352 | Oil & Gas Operator | May 1999 |
| 7241 | Mobeetie Resource Dev LLC | Perryton, TX 79070 | Oil & Gas Operator | Apr 2026 |
| 7242 | Mobil Oil Corporation | Houston, TX 77210 | Oil & Gas Operator | Dec 2007 |
| 7243 | Mobil Petro Vac, Inc. | Duncan, OK 73533 | Oil & Gas Operator | Apr 2026 |
| 7244 | Mobil Producing TX. & N.M. Inc. | Spring, TX 77389 | Oil & Gas Operator | Apr 2026 |
| 7245 | Mobile Petrovac, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2026 |
| 7246 | Mobile Production Systems, Inc. | Austin, TX 78711 | Oil & Gas Operator | Feb 1995 |
| 7247 | Mobpar, Inc. | Houston, TX 77219 | Oil & Gas Operator | Apr 2026 |
| 7248 | Mockingbird Oil, Inc. (I) | Spring, TX 77389 | Oil & Gas Operator | Apr 2026 |
| 7249 | Modena Operating LLC | Houston, TX 77057 | Oil & Gas Operator | Apr 2026 |
| 7250 | Modern Exploration, Inc. | Sherman, TX 75090 | Oil & Gas Operator | Apr 2026 |
| 7251 | Moenning, Vernie | Electra, TX 76360 | Oil & Gas Operator | Aug 2025 |
| 7252 | Mog Energy LLC | Tyler, TX 75701 | Oil Operator | Dec 2025 |
| 7253 | Mogul Energy International, Inc. | Houston, TX 77042 | Oil & Gas Operator | Oct 2017 |
| 7254 | Mogul Operating LLC | St Pete Beach, FL 33706 | Oil Operator | Apr 2026 |
| 7255 | Mogul Resources, LLC | Cisco, TX 76437 | Oil & Gas Operator | Apr 2026 |
| 7256 | Mohican Exploration, LLC | Graham, TX 76450 | Oil & Gas Operator | Oct 2024 |
| 7257 | Mohican Oil & Gas, L.L.C. | Corpus Chrsti, TX 78476 | Oil & Gas Operator | Apr 2013 |
| 7258 | Mohican Operating, L.L.C. | Corpus Christ, TX 78401 | Oil & Gas Operator | Apr 2021 |
| 7259 | Mojac Energy Corp. | Houston, TX 77056 | Oil & Gas Operator | Dec 1997 |
| 7260 | Mojave Operating Company | Midland, TX 79702 | Oil & Gas Operator | Nov 2002 |
| 7261 | Mojave Resources, LLC | New Braunfels, TX 78132 | Oil Operator | Apr 2026 |
| 7262 | Mojo Exploration & Production, LLC | Rockdale, TX 76567 | Oil Operator | Apr 2026 |
| 7263 | Mokan Capital, LLC | Spicewood, TX 78669 | Oil Operator | Apr 2026 |
| 7264 | Molder, Tom | Imperial, TX 79743 | Oil & Gas Operator | Apr 2026 |
| 7265 | Mole Hole Prod. | Bridgeport, TX 76426 | Oil Operator | Apr 2026 |
| 7266 | Moleco, LLC | West Hills, CA 91308 | Oil Operator | Apr 2026 |
| 7267 | Moleo Gas Corp. | San Angelo, TX 76902 | Oil & Gas Operator | Apr 2018 |
| 7268 | Moller, Herbert T. | Wichita Falls, TX 76301 | Oil & Gas Operator | Aug 2003 |
| 7269 | Molly Oil & Gas, LLC | Dallas, TX 75209 | Oil & Gas Operator | Apr 2026 |
| 7270 | Molopo Energy Texas, LLC | Canada, 00100 | Oil & Gas Operator | Jan 2015 |
| 7271 | Molsdorf Ag LLC | McAllen, TX 78503 | Oil Operator | Sep 2013 |
| 7272 | Momentum Energy Corporation | Austin, TX 78746 | Oil & Gas Operator | Apr 2026 |
| 7273 | Momentum Energy, LLC | Midland, TX 79702 | Oil & Gas Operator | Feb 2004 |
| 7274 | Momentum Oil & Gas, LLC | The Woodlands, TX 77382 | Oil & Gas Operator | May 2015 |
| 7275 | Momentum Oil Company | Albany, TX 76430 | Oil & Gas Operator | May 2003 |
| 7276 | Momentum Operating Co., Inc. | Albany, TX 76430 | Oil & Gas Operator | Apr 2026 |
| 7277 | Momentum Production Corp. | Baytown, TX 77521 | Oil & Gas Operator | Apr 2026 |
| 7278 | Mon Corp. | Pampa, TX 79066 | Oil & Gas Operator | Apr 2026 |
| 7279 | Monadnock Resources Op Co, LLC | Dallas, TX 75209 | Oil & Gas Operator | Jan 2021 |
| 7280 | Monadnock Resources, LLC | Addison, TX 75001 | Oil & Gas Operator | May 2020 |
| 7281 | Monarch Operating Company | Graham, TX 76450 | Oil & Gas Operator | Jun 2006 |
| 7282 | Moncrief W A Jr | Fort Worth, TX 76102 | Oil & Gas Operator | Jan 2026 |
| 7283 | Moncrief, C. B. | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2021 |
| 7284 | Mondiale Energy, Inc. | Brownwood, TX 76801 | Oil & Gas Operator | Apr 2026 |
| 7285 | Mondo Operating Company | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2026 |
| 7286 | Monexco LLC | Dallas, TX 75204-2634 | Oil & Gas Operator | Jan 2026 |
| 7287 | Mongoose Energy, LLC | San Antonio, TX 78209 | Oil & Gas Operator | Apr 2026 |
| 7288 | Monitor O&G, L.L.C. | Frisco, TX 75034 | Oil & Gas Operator | Jan 2016 |
| 7289 | Monsanto Company | Indianapolis, IN 46280 | Oil & Gas Operator | Jan 2005 |
| 7290 | Montare Operating, LTD. | Flower Mound, TX 75022 | Oil & Gas Operator | Apr 2026 |
| 7291 | Montclair Energy LLC | Edmond, OK 73034-7291 | Oil & Gas Operator | Jan 2026 |
| 7292 | Montclair Production Company | Austin, TX 78755 | Oil & Gas Operator | Apr 2026 |
| 7293 | Montco Oil & Gas, Inc. | Pampa, TX 79066 | Oil & Gas Operator | May 1999 |
| 7294 | Monterey Resources LLC | Dallas, TX 75230 | Oil & Gas Operator | Oct 2019 |
| 7295 | Montex Drilling Company LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2026 |
| 7296 | Montex Exploration Company | Houston, TX 77057 | Oil & Gas Operator | Mar 2011 |
| 7297 | Montgomery Petroleum, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Aug 2007 |
| 7298 | Montgomery Royalty | Moran, TX 76464 | Oil & Gas Operator | Apr 2026 |
| 7299 | Montrose Operating LLC | Broken Arrow, OK 74012 | Oil & Gas Operator | Apr 2026 |
| 7300 | Monument Resources, Inc. | Castle Rock, CO 80104 | Oil & Gas Operator | Jun 2012 |