| 18301 | McClure Enterprises | Recluse, WY 82725 | Oil & Gas Operator | Jun 2024 |
| 18302 | McClure M C Oil | | Oil Operator | Jul 1984 |
| 18303 | McClure Oil Company, Inc. | Midland, TX 79701 | Oil & Gas Operator | Nov 2024 |
| 18304 | McClure, J.D. Trust | Denton, TX 76209 | Oil & Gas Operator | Nov 2024 |
| 18305 | McCluskey J Sterling | New York, NY 10128-1008 | Gas Operator | Dec 1989 |
| 18306 | McCluskey Willia | | Oil & Gas Operator | Dec 1990 |
| 18307 | McClymond, B. W. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2020 |
| 18308 | McClymond, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2001 |
| 18309 | McClymond, LTD. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2009 |
| 18310 | McColl, Francis E. | Le Roy, NY 14482 | Gas Operator | Dec 2023 |
| 18311 | McComb Oil Inc | Stoneboro, PA 16153-3017 | Oil & Gas Operator | Dec 2023 |
| 18312 | McCombs Energy LLC | Houston, TX 77056 | Oil & Gas Operator | Jan 2006 |
| 18313 | McCombs Energy, LTD. | Houston, TX 77056 | Oil & Gas Operator | Aug 2017 |
| 18314 | McCommons Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Nov 2024 |
| 18315 | McConathy & Associates | | Oil & Gas Operator | Dec 1983 |
| 18316 | McConathy Production Co.,Inc. | | Oil & Gas Operator | Jun 1990 |
| 18317 | McConnell And Scully Inc | | Oil & Gas Operator | Sep 2024 |
| 18318 | McConnell Oil Properties | | Oil Operator | Jul 2024 |
| 18319 | McCool John E | Youngsville, PA 16371 | Oil & Gas Operator | Aug 2024 |
| 18320 | McCord Al Inc | Norman, OK 73072-6720 | Oil & Gas Operator | Feb 2011 |
| 18321 | McCord Exploration Co. | | Oil & Gas Operator | Dec 1990 |
| 18322 | McCord J K | Duncan, OK 73534-0032 | Oil Operator | Mar 2009 |
| 18323 | McCord Oil Co. And T. Walker | | Oil & Gas Operator | Dec 1985 |
| 18324 | McCord-Dale Exploration | | Oil & Gas Operator | May 1986 |
| 18325 | McCord-Goodrich Oil Company | | Oil & Gas Operator | Oct 1991 |
| 18326 | McCorgary Martin E | Arkansas City, KS 67005-5452 | Oil & Gas Operator | Sep 2024 |
| 18327 | McCorgary Operations | | Oil & Gas Operator | May 2024 |
| 18328 | McCorkle, Frank R. & Kathleen A. | Sedan, KS 67361 | Oil Operator | Oct 2009 |
| 18329 | McCormack, Lowell Ray | Gainesville, TX 76240 | Oil & Gas Operator | Dec 1993 |
| 18330 | McCormack, Paul H. | Gainesville, TX 76241 | Oil & Gas Operator | Sep 2003 |
| 18331 | McCormick Operating Company | | Oil & Gas Operator | Mar 1984 |
| 18332 | McCormick Operating PRTNSHP | | Oil & Gas Operator | Sep 1985 |
| 18333 | McCormick Operating, L.L.C. | Olney, TX 76374 | Oil Operator | Sep 2015 |
| 18334 | McCormick Production Co, Inc. | Oil City, LA 71061 | Oil & Gas Operator | Nov 2024 |
| 18335 | McCormick, Mark | Java Center, NY 14082 | Gas Operator | Dec 2023 |
| 18336 | McCormick, Ronald R. | Java Center, NY 14082 | Gas Operator | Dec 2023 |
| 18337 | McCormick, Terrance & Anne | Andover, NY 14806 | Oil & Gas Operator | Dec 2023 |
| 18338 | McCormick-Bintliff | | Oil & Gas Operator | Feb 1984 |
| 18339 | McCormick-Bintliff-Pettit | | Oil & Gas Operator | Feb 1984 |
| 18340 | McCormick-Ciroco, Inc. | | Oil & Gas Operator | Jan 1984 |
| 18341 | McCormick-Terra-Bintliff | | Oil & Gas Operator | Dec 1979 |
| 18342 | McCormick-WHB | | Gas Operator | Jan 1984 |
| 18343 | McCort Brian L | Malaga, OH 43757 | Oil & Gas Operator | Dec 2023 |
| 18344 | McCown Engineering | Wichita Falls, TX 76310 | Oil & Gas Operator | Nov 2024 |
| 18345 | McCoy Alex W & Associates | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2009 |
| 18346 | McCoy Petroleum | | Oil & Gas Operator | Aug 1996 |
| 18347 | McCoy Petroleum Corporation | Wichita, KS 67207 | Oil & Gas Operator | Sep 2024 |
| 18348 | McCoy Production | El Dorado, KS 67042 | Oil Operator | Dec 2019 |
| 18349 | McCoy, Jon | Erie, KS 66733 | Oil Operator | Jun 2024 |
| 18350 | McCracken Energy Services, LLC | Bradford, PA 16701 | Oil & Gas Operator | Dec 2023 |
| 18351 | McCracken Oil & Gas, LLC | Bradford, PA 16701 | Oil & Gas Operator | Dec 2023 |
| 18352 | McCracken, Carl A. III | | Oil & Gas Operator | Dec 2012 |
| 18353 | McCracken, Cory | Bradford, PA 16701 | Oil & Gas Operator | Dec 2023 |
| 18354 | McCracken, H. L. Company | Wichita Falls, TX 76302 | Oil & Gas Operator | Nov 2024 |
| 18355 | McCrary & Franklin, Inc. | Post, TX 79356 | Oil & Gas Operator | May 2012 |
| 18356 | McCrary Oil Company, Inc. | College Sta, TX 77840 | Oil & Gas Operator | Sep 2019 |
| 18357 | McCraw Family Limited Partnership (The) | Konawa, OK 74849-5616 | Oil & Gas Operator | Jul 2024 |
| 18358 | McCray, Gordon M. | Clymer, NY 14724 | Gas Operator | Dec 2023 |
| 18359 | McCrea Exploration Company, Inc. | Carrollton, TX 75007 | Oil & Gas Operator | Nov 1995 |
| 18360 | McCullis Resources Co., Inc. | Littleton, CO 80161 | Oil & Gas Operator | Aug 2024 |
| 18361 | McCulliss Resource Company Inc | Denver, CO 80202 | Oil & Gas Operator | Jun 1999 |
| 18362 | McCulliss Resources Co Inc | Littleton, CO 80161-3248 | Oil & Gas Operator | Jun 2009 |
| 18363 | McCulloch Geothermal Corporation | | Oil & Gas Operator | Jun 1982 |
| 18364 | McCulloch Oil Corp Of Ca | | Oil & Gas Operator | May 1980 |
| 18365 | McCulloch Oil Corp.-Ids | | Oil & Gas Operator | Dec 1981 |
| 18366 | McCullough G W | Norman, OK 73072 | Oil & Gas Operator | Aug 2000 |
| 18367 | McCullough, Richard F. | Pennsboro, WV 26415 | Oil & Gas Operator | Dec 2021 |
| 18368 | McCurdy Energy LLC | Midland, TX 79705 | Oil Operator | Nov 2024 |
| 18369 | McCurdy Oil Co. | Fort Worth, TX 76116 | Oil & Gas Operator | Jul 2024 |
| 18370 | McCutchin Alma Estate | Dallas, TX 75380 | Oil & Gas Operator | May 2013 |
| 18371 | McCutchin Petroleum Corporation | Dallas, TX 75225 | Oil & Gas Operator | Nov 2024 |
| 18372 | McCutchin, Gene | Dallas, TX 75380 | Oil & Gas Operator | Aug 2003 |
| 18373 | McCutchin, Jerry | Dallas, TX 75380 | Oil & Gas Operator | Mar 2008 |
| 18374 | McDaniel Company, Inc., The | Dallas, TX 75230 | Oil & Gas Operator | Nov 2024 |
| 18375 | McDaniel Oil Co. | Marble Falls, TX 78654 | Oil & Gas Operator | Nov 2024 |
| 18376 | McDaniel Petroleum Company, Inc. | | Oil Operator | Jun 2020 |
| 18377 | McDaniel, Willard | Iraan, TX 79744 | Oil & Gas Operator | Nov 2004 |
| 18378 | McDaniel, Willard Jr. Oil Co. | Marble Falls, TX 78654 | Oil & Gas Operator | Mar 2005 |
| 18379 | McDay Energy Corp. | Dallas, TX 75206 | Oil & Gas Operator | Nov 2024 |
| 18380 | McDe Energy Company Inc | Enid, OK 73706 | Oil & Gas Operator | May 2009 |
| 18381 | McDonald & Johnson Resources,LLC | Cypress, TX 77429 | Oil & Gas Operator | Dec 2010 |
| 18382 | McDonald & Pomeroy Operating Co. | Pasadena, TX 77506 | Oil & Gas Operator | Aug 2003 |
| 18383 | McDonald Dale E | Frazeysburg, OH 43822 | Oil & Gas Operator | Dec 2023 |
| 18384 | McDonald Energy, Inc. | Granbury, TX 76049 | Oil & Gas Operator | Nov 2024 |
| 18385 | McDonald Production | Lubbock, TX 79408 | Oil & Gas Operator | Mar 2003 |
| 18386 | McDonald Production, LLC | Lubbock, TX 79408 | Oil Operator | Nov 2024 |
| 18387 | McDonald Ranch Partnership | | Oil Operator | Sep 2024 |
| 18388 | McDonald Resources, LLC | Jefferson, TX 75657 | Oil & Gas Operator | Nov 2024 |
| 18389 | McDonald, Joe | Burkburnett, TX 76354 | Oil & Gas Operator | Aug 1995 |
| 18390 | McDonald, Lee | | Oil Operator | Dec 2022 |
| 18391 | McDonald, R. A. Oil Co. | Borger, TX 79008 | Oil & Gas Operator | Oct 2002 |
| 18392 | McDonald, Richard A. | Fredericksbrg, TX 78624 | Oil & Gas Operator | Nov 2024 |
| 18393 | McDonnold Operating, Inc. | Midland, TX 79701 | Oil & Gas Operator | Nov 2024 |
| 18394 | McDowell And Cook, Inc. | | Oil Operator | Feb 1987 |
| 18395 | McDowell Ranch | Shamrock, TX 79079 | Gas Operator | Nov 2024 |
| 18396 | McElroy Drilling Co., Inc. | | Gas Operator | Dec 1987 |
| 18397 | McElroy John | Sapulpa, OK 74066-6119 | Oil & Gas Operator | Aug 2024 |
| 18398 | McElvain Energy Inc | Denver, CO 80265 | Oil & Gas Operator | Nov 2019 |
| 18399 | McElvain Oil & Gas Properties Inc | Denver, CO 80265-2080 | Oil & Gas Operator | Jul 2011 |
| 18400 | McEna Inc | Tulsa, OK 74135 | Oil & Gas Operator | Jul 2005 |