| 18201 | Mayfield SWD LLC | McKinney, TX 75070-5020 | Oil & Gas Operator | Aug 2021 |
| 18202 | Mayhar N D | Eufaula, OK 74432 | Oil Operator | Apr 2015 |
| 18203 | Mayhew Properties | | Gas Operator | Jul 2024 |
| 18204 | Mayjac I, LLC | Midland, TX 79710 | Oil & Gas Operator | Nov 2024 |
| 18205 | Maynard Oil Co. | Denver, CO 80202 | Oil & Gas Operator | Sep 2004 |
| 18206 | Mayne & Mertz, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2013 |
| 18207 | Mayo Oil Co. | San Antonio, TX 78209 | Oil & Gas Operator | Feb 2019 |
| 18208 | Mayo Ross L Inc | Oklahoma City, OK 73120-1426 | Oil & Gas Operator | Jan 1997 |
| 18209 | Mayo, Danny | Whitesboro, TX 76273 | Oil & Gas Operator | Nov 2024 |
| 18210 | Mayo, Eddie | Fredericksbrg, TX 78624 | Oil & Gas Operator | Nov 2024 |
| 18211 | Mayo, Keith | Wichita Falls, TX 76301 | Oil & Gas Operator | Sep 2009 |
| 18212 | Mayo, Paul R. | Quinlan, TX 75474 | Oil & Gas Operator | May 1999 |
| 18213 | Mays Gas & Coal Co | Clarion, PA 16214-0447 | Oil & Gas Operator | Dec 2023 |
| 18214 | Mays Oil LLC | | Oil Operator | Apr 2021 |
| 18215 | Mays, Herbert | | Oil Operator | Dec 2022 |
| 18216 | Mays, Sam W., Jr. Estate | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2005 |
| 18217 | Mayshark, James Page | Sherman, NY 14781 | Gas Operator | Dec 2023 |
| 18218 | Mazco Energy LLC | San Antonio, TX 78266 | Oil & Gas Operator | Nov 2024 |
| 18219 | Mazurkiewicz, Gary, Kimberly, Matt | Perrysburg, NY 14129 | Gas Operator | Dec 2023 |
| 18220 | MB Energy, LLC | San Antonio, TX 78233 | Oil & Gas Operator | Nov 2024 |
| 18221 | MB Exploration, LLC | Dallas, TX 75380 | Oil & Gas Operator | Jul 2008 |
| 18222 | MB Holdings LLC | Independence, KS 67301 | Oil Operator | Jul 2024 |
| 18223 | MB Operating | Wichita Falls, TX 76309 | Oil & Gas Operator | Mar 2008 |
| 18224 | MBC Operating Co., Inc. | Garland, TX 75042 | Oil & Gas Operator | Aug 1993 |
| 18225 | Mbi Oil & Gas LLC | Dickinson, ND 58601 | Oil & Gas Operator | Sep 2024 |
| 18226 | MBM Partnership | | Gas Operator | Nov 1991 |
| 18227 | MBM Production, LLC | Pikeville, KY 41501 | Oil & Gas Operator | Dec 2022 |
| 18228 | Mbo, LLC | | Oil Operator | Jul 2024 |
| 18229 | MBR Resources, Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Nov 2024 |
| 18230 | MBS Resources Inc | Wilcox, PA 15870-1810 | Oil & Gas Operator | Dec 2023 |
| 18231 | MBX Operating LLC | Houston, TX 77007 | Oil & Gas Operator | Nov 2024 |
| 18232 | MC C Oil Co Inc | Sedan, KS 67361 | Oil Operator | Apr 2016 |
| 18233 | MC Glover, LLC | Albany, TX 76430 | Oil Operator | Nov 2024 |
| 18234 | MC Oil, LLC | Morganfield, KY 42437 | Oil Operator | Dec 2022 |
| 18235 | MC Panhandle, Inc. | Tulsa, OK 74102 | Gas Operator | Jul 1998 |
| 18236 | MC1 Consulting, Inc. | San Antonio, TX 78209 | Oil Operator | Nov 2024 |
| 18237 | McA Petroleum Corporation | Flatonia, TX 78941 | Oil & Gas Operator | Nov 2024 |
| 18238 | McAdams Roux & Associates | Denver, CO 80202 | Oil & Gas Operator | Dec 1999 |
| 18239 | McAdams, J F | | Oil Operator | May 1971 |
| 18240 | McAlester Fuel Co | Houston, TX 77042 | Oil & Gas Operator | Jan 2010 |
| 18241 | McAnear Oil & Gas | Freer, TX 78357 | Oil & Gas Operator | Dec 2002 |
| 18242 | McAninch J W | Tonkawa, OK 74653 | Oil & Gas Operator | Nov 2000 |
| 18243 | McAninch Michael E | Tonkawa, OK 74653-4415 | Oil & Gas Operator | May 2013 |
| 18244 | McAninch W Kent | Tonkawa, OK 74653-4216 | Oil & Gas Operator | Oct 2016 |
| 18245 | McBay Company | Grapeland, TX 75844 | Oil & Gas Operator | Feb 2002 |
| 18246 | McBee Company, The | Dallas, TX 75219 | Oil & Gas Operator | Dec 1997 |
| 18247 | McBee Operating Company, L.L.C. | Dallas, TX 75209 | Oil & Gas Operator | Nov 2024 |
| 18248 | McBee, Jim Co. | Santa Anna, TX 76878 | Oil & Gas Operator | Mar 2012 |
| 18249 | McBo Oil Co. | | Oil & Gas Operator | Dec 1996 |
| 18250 | McBrayer Oil Corporation | Rockport, TX 78381 | Oil & Gas Operator | Nov 1994 |
| 18251 | McBride Operating LLC | Kilgore, TX 75663 | Oil & Gas Operator | Nov 2024 |
| 18252 | McBride, Jane | Perry, NY 14530 | Gas Operator | Dec 2023 |
| 18253 | McBride, Jerrel L Enterprise Inc | Kilgore, TX 75663 | Oil & Gas Operator | Jun 1999 |
| 18254 | McBride, Nicholas J. & Holly M. | Lakeland, FL 33810 | Gas Operator | Dec 2023 |
| 18255 | McCabe Douglas | Pawhuska, OK 74056 | Oil Operator | Feb 2012 |
| 18256 | McCabe Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Aug 2009 |
| 18257 | McCabe Oil & Gas LLC | Dewey, OK 74029 | Oil Operator | Sep 2024 |
| 18258 | McCabe, William G | | Oil & Gas Operator | Aug 2013 |
| 18259 | McCaffery & Krampf Oil Co. | Allegany, NY 14706 | Oil Operator | Dec 2012 |
| 18260 | McCall Carl E | Fairmount City, PA 16224 | Oil & Gas Operator | Dec 2022 |
| 18261 | McCamey Well Production, Inc. | MC Camey, TX 79752 | Oil Operator | Nov 2024 |
| 18262 | McCammon Oil & Gas, Inc. | San Angelo, TX 76902 | Oil & Gas Operator | Nov 2024 |
| 18263 | McCandless Rober | | Oil & Gas Operator | May 1991 |
| 18264 | McCandlish R L Oil Co Inc | Bremen, OH 43107 | Oil & Gas Operator | Dec 1997 |
| 18265 | McCann Corporation | Midland, TX 79710 | Oil & Gas Operator | Nov 2024 |
| 18266 | McCann Drilling | | Oil & Gas Operator | Oct 1996 |
| 18267 | McCann Drilling, Inc. | Bartlesville, OK 74003 | Oil Operator | Mar 2011 |
| 18268 | McCann Mark Wind | | Oil & Gas Operator | Dec 1994 |
| 18269 | McCann Petroleum, Inc. | Sedan, KS 67361 | Oil & Gas Operator | Jul 1998 |
| 18270 | McCann Resources Inc | Sedan, KS 67361 | Oil & Gas Operator | Aug 2024 |
| 18271 | McCart Sue | Okmulgee, OK 74447-8580 | Oil & Gas Operator | Sep 2021 |
| 18272 | McCarter, A. Nelson | Houston, TX 77063 | Oil & Gas Operator | Aug 2003 |
| 18273 | McCarter, Rex | | Oil Operator | Dec 2022 |
| 18274 | McCarter, W. B. Jr. | Houston, TX 77063 | Oil & Gas Operator | Feb 2002 |
| 18275 | McCarter-Greenbrier-Macdonald | | Oil Operator | Sep 1981 |
| 18276 | McCarthy Oil & Gas Corporation | Houston, TX 77056 | Oil & Gas Operator | Oct 2007 |
| 18277 | McCarthy Oil Co. | | Oil Operator | Dec 1998 |
| 18278 | McCarthy Oil Com | | Oil Operator | Jun 1994 |
| 18279 | McCarthy Tim W - | | Oil Operator | Mar 1994 |
| 18280 | McCarthy, Lawrence J. | Plains, MT 59859-9215 | Oil & Gas Operator | Nov 2011 |
| 18281 | McCartney Engineering LLC | Wheat Ridge, CO 80033 | Oil & Gas Operator | Sep 2024 |
| 18282 | McCarty Francis | | Oil Operator | Sep 1993 |
| 18283 | McCarty Tom | | Oil & Gas Operator | Sep 2000 |
| 18284 | McCarty, Charles E | Spencer, WV 25276 | Oil & Gas Operator | Dec 2021 |
| 18285 | McCaskey, Jeffrey A. | East Aurora, NY 14052 | Gas Operator | Dec 2023 |
| 18286 | McCasland Management Inc | Hobbs, NM 88240 | Oil & Gas Operator | Aug 2020 |
| 18287 | McCauley Production | Graham, TX 76450 | Oil Operator | Nov 2024 |
| 18288 | McCauley, F. R. | Houston, TX 77002 | Oil & Gas Operator | Apr 2000 |
| 18289 | McChesney Michael & Ayo Joseph R | Pinedale, WY 82941-1282 | Oil Operator | Nov 2019 |
| 18290 | McClain Oil Co | Granville, OH 43023 | Oil & Gas Operator | Dec 1988 |
| 18291 | McCleese Enterprises LLC | Richardson, TX 75082-4839 | Gas Operator | Dec 2017 |
| 18292 | McClellan Oil Corporation | Roswell, NM 882020730 | Oil & Gas Operator | May 2015 |
| 18293 | McClelland Creek Properties,Inc. | Pampa, TX 79066 | Oil & Gas Operator | Nov 2024 |
| 18294 | McClelland Oil - | | Oil Operator | Dec 2009 |
| 18295 | McClelland, C.R. Operations, Inc. | Madison, KS 66860 | Oil Operator | Aug 1998 |
| 18296 | McClintock V C | Casper, WY 82601 | Oil & Gas Operator | May 2024 |
| 18297 | McClintock, Robert T | | Oil & Gas Operator | Aug 2024 |
| 18298 | McClinton & 4-M Invest Inc | | Oil & Gas Operator | Sep 1992 |
| 18299 | McClinton & Mosing | | Oil & Gas Operator | Oct 1977 |
| 18300 | McClure Brothers | Denton, TX 76210 | Oil & Gas Operator | Nov 2024 |