| 18301 | McCaffery & Krampf Oil Co. | Allegany, NY 14706 | Oil Operator | Dec 2012 |
| 18302 | McCall Carl E | Fairmount City, PA 16224 | Oil & Gas Operator | Dec 2022 |
| 18303 | McCamey Well Production, Inc. | MC Camey, TX 79752 | Oil Operator | Nov 2024 |
| 18304 | McCammon Oil & Gas, Inc. | San Angelo, TX 76902 | Oil & Gas Operator | Nov 2024 |
| 18305 | McCandless Rober | | Oil & Gas Operator | May 1991 |
| 18306 | McCandlish R L Oil Co Inc | Bremen, OH 43107 | Oil & Gas Operator | Dec 1997 |
| 18307 | McCann Corporation | Midland, TX 79710 | Oil & Gas Operator | Nov 2024 |
| 18308 | McCann Drilling | | Oil & Gas Operator | Oct 1996 |
| 18309 | McCann Drilling, Inc. | Bartlesville, OK 74003 | Oil Operator | Mar 2011 |
| 18310 | McCann Mark Wind | | Oil & Gas Operator | Dec 1994 |
| 18311 | McCann Petroleum, Inc. | Sedan, KS 67361 | Oil & Gas Operator | Jul 1998 |
| 18312 | McCann Resources Inc | Sedan, KS 67361 | Oil & Gas Operator | Jul 2024 |
| 18313 | McCart Sue | Okmulgee, OK 74447-8580 | Oil & Gas Operator | Sep 2021 |
| 18314 | McCarter, A. Nelson | Houston, TX 77063 | Oil & Gas Operator | Aug 2003 |
| 18315 | McCarter, Rex | | Oil Operator | Dec 2022 |
| 18316 | McCarter, W. B. Jr. | Houston, TX 77063 | Oil & Gas Operator | Feb 2002 |
| 18317 | McCarter-Greenbrier-Macdonald | | Oil Operator | Sep 1981 |
| 18318 | McCarthy Oil & Gas Corporation | Houston, TX 77056 | Oil & Gas Operator | Oct 2007 |
| 18319 | McCarthy Oil Co. | | Oil Operator | Dec 1998 |
| 18320 | McCarthy Oil Com | | Oil Operator | Jun 1994 |
| 18321 | McCarthy Tim W - | | Oil Operator | Mar 1994 |
| 18322 | McCarthy, Lawrence J. | Plains, MT 59859-9215 | Oil & Gas Operator | Nov 2011 |
| 18323 | McCartney Engineering LLC | Wheat Ridge, CO 80033 | Oil & Gas Operator | Sep 2024 |
| 18324 | McCarty Francis | | Oil Operator | Sep 1993 |
| 18325 | McCarty Tom | | Oil & Gas Operator | Sep 2000 |
| 18326 | McCarty, Charles E | Spencer, WV 25276 | Oil & Gas Operator | Dec 2021 |
| 18327 | McCaskey, Jeffrey A. | East Aurora, NY 14052 | Gas Operator | Dec 2023 |
| 18328 | McCasland Management Inc | Hobbs, NM 88240 | Oil & Gas Operator | Aug 2020 |
| 18329 | McCauley Production | Graham, TX 76450 | Oil Operator | Nov 2024 |
| 18330 | McCauley, F. R. | Houston, TX 77002 | Oil & Gas Operator | Apr 2000 |
| 18331 | McChesney Michael & Ayo Joseph R | Pinedale, WY 82941-1282 | Oil Operator | Nov 2019 |
| 18332 | McClain Oil Co | Granville, OH 43023 | Oil & Gas Operator | Dec 1988 |
| 18333 | McCleese Enterprises LLC | Richardson, TX 75082-4839 | Gas Operator | Dec 2017 |
| 18334 | McClellan Oil Corporation | Roswell, NM 882020730 | Oil & Gas Operator | May 2015 |
| 18335 | McClelland Creek Properties,Inc. | Pampa, TX 79066 | Oil & Gas Operator | Nov 2024 |
| 18336 | McClelland Oil - | | Oil Operator | Dec 2009 |
| 18337 | McClelland, C.R. Operations, Inc. | Madison, KS 66860 | Oil Operator | Aug 1998 |
| 18338 | McClintock V C | Casper, WY 82601 | Oil & Gas Operator | May 2024 |
| 18339 | McClintock, Robert T | | Oil & Gas Operator | Aug 2024 |
| 18340 | McClinton & 4-M Invest Inc | | Oil & Gas Operator | Sep 1992 |
| 18341 | McClinton & Mosing | | Oil & Gas Operator | Oct 1977 |
| 18342 | McClure Brothers | Denton, TX 76210 | Oil & Gas Operator | Nov 2024 |
| 18343 | McClure Enterprises | Recluse, WY 82725 | Oil & Gas Operator | Jun 2024 |
| 18344 | McClure M C Oil | | Oil Operator | Jul 1984 |
| 18345 | McClure Oil Company, Inc. | Midland, TX 79701 | Oil & Gas Operator | Nov 2024 |
| 18346 | McClure, J.D. Trust | Denton, TX 76209 | Oil & Gas Operator | Nov 2024 |
| 18347 | McCluskey J Sterling | New York, NY 10128-1008 | Gas Operator | Dec 1989 |
| 18348 | McCluskey Willia | | Oil & Gas Operator | Dec 1990 |
| 18349 | McClymond, B. W. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2020 |
| 18350 | McClymond, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2001 |
| 18351 | McClymond, LTD. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2009 |
| 18352 | McColl, Francis E. | Le Roy, NY 14482 | Gas Operator | Dec 2023 |
| 18353 | McComb Oil Inc | Stoneboro, PA 16153-3017 | Oil & Gas Operator | Dec 2023 |
| 18354 | McCombs Energy LLC | Houston, TX 77056 | Oil & Gas Operator | Jan 2006 |
| 18355 | McCombs Energy, LTD. | Houston, TX 77056 | Oil & Gas Operator | Aug 2017 |
| 18356 | McCommons Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Nov 2024 |
| 18357 | McConathy & Associates | | Oil & Gas Operator | Dec 1983 |
| 18358 | McConathy Production Co.,Inc. | | Oil & Gas Operator | Jun 1990 |
| 18359 | McConnell And Scully Inc | | Oil & Gas Operator | Sep 2024 |
| 18360 | McConnell Oil Properties | | Oil Operator | Jul 2024 |
| 18361 | McCool John E | Youngsville, PA 16371 | Oil & Gas Operator | Aug 2024 |
| 18362 | McCord Al Inc | Norman, OK 73072-6720 | Oil & Gas Operator | Feb 2011 |
| 18363 | McCord Exploration Co. | | Oil & Gas Operator | Dec 1990 |
| 18364 | McCord J K | Duncan, OK 73534-0032 | Oil Operator | Mar 2009 |
| 18365 | McCord Oil Co. And T. Walker | | Oil & Gas Operator | Dec 1985 |
| 18366 | McCord-Dale Exploration | | Oil & Gas Operator | May 1986 |
| 18367 | McCord-Goodrich Oil Company | | Oil & Gas Operator | Oct 1991 |
| 18368 | McCorgary Martin E | Arkansas City, KS 67005-5452 | Oil & Gas Operator | Jun 2024 |
| 18369 | McCorgary Operations | | Oil & Gas Operator | May 2024 |
| 18370 | McCorkle, Frank R. & Kathleen A. | Sedan, KS 67361 | Oil Operator | Oct 2009 |
| 18371 | McCormack, Lowell Ray | Gainesville, TX 76240 | Oil & Gas Operator | Dec 1993 |
| 18372 | McCormack, Paul H. | Gainesville, TX 76241 | Oil & Gas Operator | Sep 2003 |
| 18373 | McCormick Operating Company | | Oil & Gas Operator | Mar 1984 |
| 18374 | McCormick Operating PRTNSHP | | Oil & Gas Operator | Sep 1985 |
| 18375 | McCormick Operating, L.L.C. | Olney, TX 76374 | Oil Operator | Sep 2015 |
| 18376 | McCormick Production Co, Inc. | Oil City, LA 71061 | Oil & Gas Operator | Nov 2024 |
| 18377 | McCormick, Mark | Java Center, NY 14082 | Gas Operator | Dec 2023 |
| 18378 | McCormick, Ronald R. | Java Center, NY 14082 | Gas Operator | Dec 2023 |
| 18379 | McCormick, Terrance & Anne | Andover, NY 14806 | Oil & Gas Operator | Dec 2023 |
| 18380 | McCormick-Bintliff | | Oil & Gas Operator | Feb 1984 |
| 18381 | McCormick-Bintliff-Pettit | | Oil & Gas Operator | Feb 1984 |
| 18382 | McCormick-Ciroco, Inc. | | Oil & Gas Operator | Jan 1984 |
| 18383 | McCormick-Terra-Bintliff | | Oil & Gas Operator | Dec 1979 |
| 18384 | McCormick-WHB | | Gas Operator | Jan 1984 |
| 18385 | McCort Brian L | Malaga, OH 43757 | Oil & Gas Operator | Dec 2023 |
| 18386 | McCown Engineering | Wichita Falls, TX 76310 | Oil & Gas Operator | Nov 2024 |
| 18387 | McCoy Alex W & Associates | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2009 |
| 18388 | McCoy Petroleum | | Oil & Gas Operator | Aug 1996 |
| 18389 | McCoy Petroleum Corporation | Wichita, KS 67207 | Oil & Gas Operator | Sep 2024 |
| 18390 | McCoy Production | El Dorado, KS 67042 | Oil Operator | Dec 2019 |
| 18391 | McCoy, Jon | Erie, KS 66733 | Oil Operator | Jun 2024 |
| 18392 | McCracken Energy Services, LLC | Bradford, PA 16701 | Oil & Gas Operator | Dec 2023 |
| 18393 | McCracken Oil & Gas, LLC | Bradford, PA 16701 | Oil & Gas Operator | Dec 2023 |
| 18394 | McCracken, Carl A. III | | Oil & Gas Operator | Dec 2012 |
| 18395 | McCracken, Cory | Bradford, PA 16701 | Oil & Gas Operator | Dec 2023 |
| 18396 | McCracken, H. L. Company | Wichita Falls, TX 76302 | Oil & Gas Operator | Nov 2024 |
| 18397 | McCrary & Franklin, Inc. | Post, TX 79356 | Oil & Gas Operator | May 2012 |
| 18398 | McCrary Oil Company, Inc. | College Sta, TX 77840 | Oil & Gas Operator | Sep 2019 |
| 18399 | McCraw Family Limited Partnership (The) | Konawa, OK 74849-5616 | Oil & Gas Operator | Jul 2024 |
| 18400 | McCray, Gordon M. | Clymer, NY 14724 | Gas Operator | Dec 2023 |