| 17701 | M H Oil & Gas LLC | Okeene, OK 73763-0684 | Oil & Gas Operator | Feb 2013 |
| 17702 | M H W, Inc. | Dallas, TX 75230 | Oil & Gas Operator | Jul 1996 |
| 17703 | M IV Ops., Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Mar 1998 |
| 17704 | M J M D Inc | Burlington, IA 52601 | Oil Operator | Jan 2013 |
| 17705 | M K M LTD | | Oil & Gas Operator | Jun 1998 |
| 17706 | M K M Oil Company | Casper, WY 82602 | Oil & Gas Operator | Jun 1996 |
| 17707 | M K Oil Company | Gillette, WY 82717-3470 | Oil & Gas Operator | Jul 2025 |
| 17708 | M K W Inc | Oklahoma City, OK 73112-8884 | Oil & Gas Operator | Dec 2009 |
| 17709 | M L Energy | | Oil Operator | Feb 2015 |
| 17710 | M L Energy LLC | | Oil Operator | Aug 2025 |
| 17711 | M L Mayfield Petroleum Corp. | | Oil & Gas Operator | Aug 1991 |
| 17712 | M M Energy, Inc. | Oklahoma City, OK 73156 | Oil & Gas Operator | Jul 2025 |
| 17713 | M M Resources In | | Gas Operator | Feb 1990 |
| 17714 | M M Resources, Inc. | Oklahoma City, OK 73156 | Oil & Gas Operator | Sep 2018 |
| 17715 | M P O'Meara, Jr. Inc. | | Oil & Gas Operator | Sep 2000 |
| 17716 | M R Drilling Company | Monahans, TX 79756 | Oil & Gas Operator | Feb 1998 |
| 17717 | M R Schalk | Albuquerque, NM 87125 | Oil & Gas Operator | Jul 2022 |
| 17718 | M R Ventures LLC | Dallas, TX 75367 | Oil & Gas Operator | Jul 2025 |
| 17719 | M S B Company | Slaton, TX 79364 | Oil & Gas Operator | Dec 2016 |
| 17720 | M S Drilling Company | | Oil Operator | Feb 2025 |
| 17721 | M S Exploration Inc | Lexington, OH 44904-9510 | Oil & Gas Operator | Dec 1999 |
| 17722 | M T M Oil | Monahans, TX 79756 | Oil & Gas Operator | Oct 2025 |
| 17723 | M T W Oil Co | Terral, OK 73569 | Oil Operator | Jun 2014 |
| 17724 | M V Crum Gas Partners | Paintsville, KY 41240 | Gas Operator | Dec 2021 |
| 17725 | M V Production Co | | Oil & Gas Operator | Jun 1990 |
| 17726 | M V Ventures, G. P. | | Oil & Gas Operator | Dec 2000 |
| 17727 | M W Petroleum Company | Houston, TX 77056 | Oil & Gas Operator | Dec 1995 |
| 17728 | M W Production Co. | New Braunfels, TX 78130 | Oil & Gas Operator | Aug 2003 |
| 17729 | M&M Energy, LLC | El Paso, TX 79902 | Oil Operator | Dec 2020 |
| 17730 | M&M Oil, LLC | Artesia, NM 88210254 | Oil & Gas Operator | Jul 2025 |
| 17731 | M&M Services LLC | Neodesha, KS 66757 | Gas Operator | Jun 2025 |
| 17732 | M'Red Petroleum, LLC | Pampa, TX 79065 | Oil & Gas Operator | Dec 2010 |
| 17733 | M-2 Oil Company | Wichita Falls, TX 76306 | Oil & Gas Operator | May 2006 |
| 17734 | M-3 Industries | Casper, WY 82602 | Oil & Gas Operator | Jun 2025 |
| 17735 | M-B Operating Co., Inc. | Rowlett, TX 75030 | Oil & Gas Operator | Oct 2025 |
| 17736 | M-B SWD Inc | Crescent, OK 73028-0533 | Oil Operator | Jul 1997 |
| 17737 | M-C Production & Drilling Co,Inc | Longview, TX 75608 | Oil & Gas Operator | Oct 2025 |
| 17738 | M-Five Oil Company | Seguin, TX 78155 | Oil & Gas Operator | Apr 2002 |
| 17739 | M-G Gas Company, Inc. | Plano, TX 75086 | Oil & Gas Operator | Jun 1999 |
| 17740 | M-P Petroleum Inc | McPherson, KS 67460 | Oil & Gas Operator | Jan 2013 |
| 17741 | M-S-C Corporation | Houston, TX 77027 | Oil Operator | May 1994 |
| 17742 | M-T Petroleum, Inc. | Andrews, TX 79714 | Oil & Gas Operator | Mar 2008 |
| 17743 | M-Tex Resources, Inc. | Merkel, TX 79536 | Oil & Gas Operator | Oct 2025 |
| 17744 | M-V Company | Refugio, TX 78377 | Oil & Gas Operator | Jun 2004 |
| 17745 | M-W-D Oil Co. | Odessa, TX 79760 | Oil & Gas Operator | Jul 1999 |
| 17746 | M. A. B. Production | | Oil Operator | Nov 2009 |
| 17747 | M. A. Robison | | Oil & Gas Operator | Oct 1998 |
| 17748 | M. B. And D. I. Dupree | | Oil Operator | Nov 1992 |
| 17749 | M. D. & G. Partnership | | Oil & Gas Operator | Dec 1996 |
| 17750 | M. E. Fitzgerald | | Oil & Gas Operator | May 1993 |
| 17751 | M. E. Operating & Services, Inc. | Fort Worth, TX 76104 | Oil & Gas Operator | Oct 2025 |
| 17752 | M. F. McCain, Inc. | | Oil & Gas Operator | Jul 1987 |
| 17753 | M. Grace, Inc. | Henderson, TX 75653 | Oil & Gas Operator | Oct 2025 |
| 17754 | M. H. Whittier Energy LLC | | Oil & Gas Operator | Sep 1996 |
| 17755 | M. H.Marr | | Oil & Gas Operator | Mar 1998 |
| 17756 | M. J. G., Inc. | Alice, TX 78333 | Oil & Gas Operator | Jul 2010 |
| 17757 | M. J. McCaffery Oil Co. | Allegany, NY 14706 | Oil Operator | Dec 2017 |
| 17758 | M. J. T. Enterprises | | Oil Operator | Jun 2025 |
| 17759 | M. K. Fuhrman LLC | | Oil Operator | May 2025 |
| 17760 | M. K. Production | Caldwell, TX 77836 | Oil & Gas Operator | Mar 2008 |
| 17761 | M. L. Mayfield | | Oil & Gas Operator | Oct 1990 |
| 17762 | M. L. Mayfield Co. | | Oil & Gas Operator | Aug 1991 |
| 17763 | M. M. & M. Resources, Inc. | Wetumka, OK 74883 | Oil & Gas Operator | Apr 2020 |
| 17764 | M. P. O'Meara Oil Co. | | Oil & Gas Operator | Apr 1991 |
| 17765 | M. P. S. Prod. Co. | Houston, TX 77225 | Oil & Gas Operator | Dec 1996 |
| 17766 | M. Parker Production Co. | | Oil Operator | Dec 2024 |
| 17767 | M. S. Delone | | Oil Operator | Nov 1990 |
| 17768 | M. S. Productions, Inc. | Pittsburg, KS 66762 | Oil & Gas Operator | Nov 2019 |
| 17769 | M. T. R. Production | | Oil Operator | Mar 2006 |
| 17770 | M. W. Maxwell | | Oil & Gas Operator | Apr 1990 |
| 17771 | M.A. Yost Operations, Inc | Russell, KS 67665 | Oil Operator | Jun 2025 |
| 17772 | M.A.E. Resources, Inc. | Parker, KS 66072 | Oil Operator | Sep 2011 |
| 17773 | M.A.R.S. Energy | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 17774 | M.B. Properties, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Oct 1995 |
| 17775 | M.B.J. Operating | Argyle, TX 76226 | Oil & Gas Operator | Jun 2022 |
| 17776 | M.C.E. Trust Group, A General Partnership | Cherryvale, KS 67335 | Oil & Gas Operator | Sep 2009 |
| 17777 | M.D. Skroopka Operating, LLC | Oakland, CA 94611 | Oil & Gas Operator | Oct 2025 |
| 17778 | M.J. Bernos, Jr./PKR Oil, Inc. | | Gas Operator | Aug 1990 |
| 17779 | M.J.O.G., Inc. | Fort Smith, AR 72903 | Oil Operator | Mar 2015 |
| 17780 | M.O.K.A.T. | Bartlesville, OK 74003 | Oil Operator | Jun 2001 |
| 17781 | M.R.M. Operating, Inc. | Midland, TX 79707 | Oil & Gas Operator | Aug 2003 |
| 17782 | M.T. Oil Co. | Copan, OK 74022 | Oil Operator | Jul 2025 |
| 17783 | M.T.M. Petroleum | | Oil & Gas Operator | Oct 1995 |
| 17784 | M2 Louisiana Gas Service, LLC | | Oil Operator | Apr 2010 |
| 17785 | M2 Squared Operating, LLC | Rockwall, TX 75032 | Oil Operator | Oct 2025 |
| 17786 | M2S Oil LLC | | Oil Operator | Jun 2025 |
| 17787 | M3 Helium Corp | | Gas Operator | Jun 2025 |
| 17788 | M3V Energy, LLC | Perryton, TX 79070 | Oil & Gas Operator | Oct 2025 |
| 17789 | M4 Energy, LLC | Watsontown, PA 17777-1133 | Oil & Gas Operator | Dec 2024 |
| 17790 | M5 Standing Energy, LLC | Decatur, TX 76234 | Oil & Gas Operator | Oct 2025 |
| 17791 | M5oexit, LLC | Pampa, TX 79066 | Oil & Gas Operator | Oct 2025 |
| 17792 | M7 Resources LLC | Santa Fe, NM 87505 | Oil Operator | May 2025 |
| 17793 | Ma-Si, Inc. | | Oil & Gas Operator | May 1998 |
| 17794 | Mac 5 Operating, LLC | Pampa, TX 79065 | Oil & Gas Operator | Feb 2021 |
| 17795 | Mac Engineering & Operating Co | | Oil & Gas Operator | May 2005 |
| 17796 | Mac Oil Field Service Inc | Millersburg, OH 44654 | Oil & Gas Operator | Dec 2024 |
| 17797 | Mac Operating | Graham, TX 76450 | Oil & Gas Operator | Jun 2023 |
| 17798 | Mace, T. A. | Oklahoma City, OK 73127 | Oil & Gas Operator | Feb 2008 |
| 17799 | Macfarlan Oil And Gas, LLC | Ellenboro, WV 26346-0058 | Oil & Gas Operator | Dec 2021 |
| 17800 | Mach Petroleum, Inc. | Tulsa, OK 74153 | Oil & Gas Operator | Nov 2014 |