| 2201 | Mto Oil Company | Okay, OK 74446-0354 | Oil Operator | Jul 2019 |
| 2202 | MTS Operating, Inc. | Borger, TX 79008 | Oil & Gas Operator | Dec 2004 |
| 2203 | Mud Creek Operating, LLC | Tyler, TX 75702 | Oil & Gas Operator | Apr 2024 |
| 2204 | Mud Operations Inc | Ames, OK 73718-9501 | Oil & Gas Operator | Jan 2024 |
| 2205 | Mud River Gas Co | | Gas Operator | Dec 2021 |
| 2206 | Mud River Oil & Gas, LLC | Rochester, KY 42273 | Oil Operator | Dec 2021 |
| 2207 | Mudslinger Oil, L.L.C. | Abilene, TX 79601 | Oil Operator | Apr 2024 |
| 2208 | Muegge Don E | Lamont, OK 74643-5010 | Oil & Gas Operator | Dec 1996 |
| 2209 | Muegge, Clay A. | Lamont, OK 74643 | Oil & Gas Operator | Jan 2024 |
| 2210 | Mueggenborg Derrick R Dba DRM Oil & Gas | Yale, OK 74085-0335 | Oil Operator | Jan 2024 |
| 2211 | Mueller Engineering Corp. | Corpus Chrsti, TX 78476 | Oil & Gas Operator | Feb 2002 |
| 2212 | Mueller Exploration, Inc. | Portland, TX 78374 | Oil & Gas Operator | Apr 2024 |
| 2213 | Mueller Fred W | | Oil & Gas Operator | Dec 1995 |
| 2214 | Mueller Oil | | Oil Operator | Dec 2023 |
| 2215 | Mueller Thomas C | Fort Smith, AR 72913 | Gas Operator | Aug 2008 |
| 2216 | Mueller Thomas C LTD | Oklahoma City, OK 73102-5683 | Gas Operator | Aug 2008 |
| 2217 | Mueller, Thomas C Inc | | Gas Operator | Dec 2004 |
| 2218 | Mueller, Thomas C, Of Crawford County Inc | | Gas Operator | Dec 2004 |
| 2219 | Muenster Drilling Co. Inc. | Muenster, TX 76252 | Oil & Gas Operator | Apr 2024 |
| 2220 | Mugg, John D. Jr. | San Antonio, TX 78216 | Oil & Gas Operator | Nov 1997 |
| 2221 | Muirfield Exploration, LTD. | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 2024 |
| 2222 | Muirfield Resources Company | Tulsa, OK 74101-3166 | Oil & Gas Operator | Nov 2023 |
| 2223 | Mulberry Oil & Gas, LLC | Mulberry, AR 72947 | Gas Operator | Jan 2024 |
| 2224 | Muldowney Development, Inc. | Dunkirk, NY 14048 | Gas Operator | Dec 2022 |
| 2225 | Mull Drilling Company | Wichita, KS 67206 | Oil & Gas Operator | Feb 2024 |
| 2226 | Mullen Exploration Inc | | Oil & Gas Operator | Dec 2002 |
| 2227 | Mullen Jr J S | | Oil & Gas Operator | Feb 1992 |
| 2228 | Mullen Resources LLC | Reedy, WV 25270 | Oil & Gas Operator | Dec 2021 |
| 2229 | Mullen William Company | Edmond, OK 73083-1372 | Oil & Gas Operator | May 1999 |
| 2230 | Mullen-Hathorn-Bass | | Oil & Gas Operator | Mar 1985 |
| 2231 | Muller Oil & Gas | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2024 |
| 2232 | Mullin, W. B. | Graham, TX 76450 | Oil & Gas Operator | Sep 1998 |
| 2233 | Mullins & Prichard | | Oil & Gas Operator | May 1992 |
| 2234 | Mullins Jimmy R Dba Southcreek Petroleum Co | Dibble, OK 73031 | Oil & Gas Operator | Jan 2021 |
| 2235 | Mullins John S | Hominy, OK 74035 | Oil Operator | Nov 2014 |
| 2236 | Mullins Well Service | MT Gilead, OH 43338 | Oil & Gas Operator | Dec 2018 |
| 2237 | Mullins, Manuel | Olney, TX 76374 | Oil & Gas Operator | Apr 2024 |
| 2238 | Mulloy Operating, Inc. | Midland, TX 79701 | Oil & Gas Operator | Apr 2024 |
| 2239 | Mulloy, J. W. Associates, Inc. | Midland, TX 79701 | Oil & Gas Operator | Jan 2003 |
| 2240 | Multipay Energy, Inc. | Austin, TX 78749 | Oil Operator | Apr 2024 |
| 2241 | Multiplex Resources, Inc. | Baytown, TX 77521 | Oil Operator | Dec 2009 |
| 2242 | Mumford, Catherine | Waterloo, NY 13165 | Gas Operator | Dec 2022 |
| 2243 | Mumford-Gabel, Jennifer And Kyle Gabel | Lawtons, NY 14091 | Gas Operator | Dec 2022 |
| 2244 | Mumma Oil Production Co., Inc. | Allentown, PA 18109-0000 | Oil & Gas Operator | Dec 2019 |
| 2245 | Munday Operating Co., L.L.C. | | Oil & Gas Operator | May 2007 |
| 2246 | Mundell F E | Watertown, SD 57201 | Oil & Gas Operator | Aug 1994 |
| 2247 | Munn, W. H. Operating Company | Midland, TX 79702 | Oil & Gas Operator | Sep 2002 |
| 2248 | Munoco Co. | El Dorado, AR 71730 | Oil & Gas Operator | Jul 2021 |
| 2249 | Munoco Co. L.C. | | Oil & Gas Operator | Jun 2003 |
| 2250 | Munoz Farms Operating Co., LLC | Carrizo SPGS, TX 78834 | Oil & Gas Operator | Apr 2024 |
| 2251 | Munoz, Magdaleno C. | Borger, TX 79007 | Oil Operator | Apr 2024 |
| 2252 | Munson Dave Company | Dallas, TX 75201-3591 | Oil Operator | Aug 1996 |
| 2253 | Munson Operating, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Apr 2024 |
| 2254 | Munson, Charles C. | Dallas, TX 75201 | Oil & Gas Operator | Apr 2002 |
| 2255 | Munson, David M. | Dallas, TX 75201 | Oil & Gas Operator | Mar 2015 |
| 2256 | Munson, David M. Inc. | Dallas, TX 75251 | Oil & Gas Operator | Apr 2024 |
| 2257 | Munson, E. P., Jr. | Fort Worth, TX 76121 | Oil & Gas Operator | Oct 1995 |
| 2258 | Muras Energy, Inc. | Edmond, OK 73013 | Oil & Gas Operator | Dec 2023 |
| 2259 | Murchison Oil & | | Oil Operator | Mar 1988 |
| 2260 | Murchison Oil & Gas Inc | Plano, TX 75024 | Oil & Gas Operator | Feb 2024 |
| 2261 | Murchison Oil And Gas, LLC | Plano, TX 75024 | Oil & Gas Operator | Apr 2024 |
| 2262 | Murchison Trusts | | Gas Operator | Sep 2003 |
| 2263 | Murdoch Oil Co Inc | Bluff, UT 84512 | Oil & Gas Operator | Jun 2010 |
| 2264 | Murex Petroleum Corporation | Humble, TX 77347 | Oil & Gas Operator | Feb 2024 |
| 2265 | Murexco Petroleum, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Oct 1996 |
| 2266 | Murfin Drilling | | Oil & Gas Operator | Jul 1997 |
| 2267 | Murfin Drilling Co., Inc. | Wichita, KS 67202 | Oil & Gas Operator | Feb 2024 |
| 2268 | Murjo Oil & Royalty Company | Fort Worth, TX 76121 | Oil & Gas Operator | Dec 2023 |
| 2269 | Murk, James M. | Wheaton, IL 60189 | Gas Operator | Jan 1999 |
| 2270 | Muroz International Group Inc | Houston, TX 77056 | Oil Operator | Apr 2024 |
| 2271 | Murphree Brothers Production | Monahans, TX 79756 | Oil & Gas Operator | Apr 2024 |
| 2272 | Murphree Energy, Inc. | Monahans, TX 79756 | Oil Operator | Apr 2024 |
| 2273 | Murphree Production | Monahans, TX 79756 | Oil & Gas Operator | Jul 2014 |
| 2274 | Murphrey Oil Co | | Oil Operator | Jan 2024 |
| 2275 | Murphy & Associates, Inc. | Snyder, TX 79549 | Oil & Gas Operator | Oct 1996 |
| 2276 | Murphy - Sun | | Oil & Gas Operator | May 1989 |
| 2277 | Murphy D V | | Oil Operator | Dec 1989 |
| 2278 | Murphy Energy Services, LP | Saratoga, TX 77585 | Oil Operator | Dec 2018 |
| 2279 | Murphy Exp & Prod Co.-USA | | Oil & Gas Operator | May 2014 |
| 2280 | Murphy Expl. & Prod. Co. - USA | Houston, TX 77024 | Oil & Gas Operator | Apr 2024 |
| 2281 | Murphy Exploration & Prod. Co. | Houston, TX 77094 | Oil & Gas Operator | Jun 2011 |
| 2282 | Murphy Exploration & Production | Houston, TX 77024 | Oil Operator | Feb 2024 |
| 2283 | Murphy Helen Colpitt Trust | Collinsville, OK 74021-0128 | Oil & Gas Operator | May 2002 |
| 2284 | Murphy Jack L | Tulsa, OK 74104-4915 | Oil Operator | Mar 2015 |
| 2285 | Murphy Oil Company Inc | Lancaster, OH 43130 | Oil & Gas Operator | Dec 2022 |
| 2286 | Murphy Oil USA Inc | New Orleans, LA 70161 | Oil & Gas Operator | Jan 1993 |
| 2287 | Murphy Operating Corp | Roswell, NM 88202 | Oil & Gas Operator | Apr 1998 |
| 2288 | Murphy Prod Inc | Vanderbilt, PA 15486-1001 | Oil & Gas Operator | Dec 2022 |
| 2289 | Murphy Production Co. (Inc.) | | Oil & Gas Operator | Apr 1991 |
| 2290 | Murphy Production Corp. | Austin, TX 78731 | Oil & Gas Operator | Sep 2013 |
| 2291 | Murphy S J Oil & Gas Inc | Edmond, OK 73034 | Oil & Gas Operator | Jan 2024 |
| 2292 | Murphy Sheldon L & Loretta | Newcastle, WY 82701 | Oil & Gas Operator | Feb 2024 |
| 2293 | Murphy, Bill W. Operating Co,Inc | Richardson, TX 75080 | Oil & Gas Operator | Apr 2024 |
| 2294 | Murphy, Charles H. | Altoona, KS 66710 | Oil Operator | Jul 2022 |
| 2295 | Murphy, Douglas S. | Sherman, NY 14781 | Gas Operator | Dec 2022 |
| 2296 | Murphy, Earl M. | Madison, KS 66860 | Oil Operator | Jun 1999 |
| 2297 | Murphy, K. P. Oil Operator | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2024 |
| 2298 | Murray Hill Energy, Inc. | Bridgeport, WV 26330 | Oil & Gas Operator | Dec 2017 |
| 2299 | Murray J. Evans | | Oil Operator | Mar 1985 |
| 2300 | Murray, Tom Enterprises | Monahans, TX 79756 | Oil & Gas Operator | Apr 2024 |