| 20601 | Muleshoe Crude, LP | Midland, TX 79701 | Oil & Gas Operator | Feb 2026 |
| 20602 | Mulkey Operating Company | Denton, TX 76202 | Oil & Gas Operator | Jun 2006 |
| 20603 | Mull Drilling Company | Wichita, KS 67206 | Oil & Gas Operator | Nov 2025 |
| 20604 | Mullen Exploration Inc | | Oil & Gas Operator | Dec 2002 |
| 20605 | Mullen Resources LLC | Reedy, WV 25270 | Oil & Gas Operator | Dec 2021 |
| 20606 | Mullen William Company | Edmond, OK 73083-1372 | Oil & Gas Operator | May 1999 |
| 20607 | Mullen-Hathorn-Bass | | Oil & Gas Operator | Mar 1985 |
| 20608 | Muller Oil & Gas | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2026 |
| 20609 | Mullin, W. B. | Graham, TX 76450 | Oil & Gas Operator | Sep 1998 |
| 20610 | Mullins & Prichard | | Oil & Gas Operator | May 1992 |
| 20611 | Mullins Jimmy R Dba Southcreek Petroleum Co | Dibble, OK 73031 | Oil & Gas Operator | Jan 2021 |
| 20612 | Mullins Well Service | MT Gilead, OH 43338 | Oil & Gas Operator | Dec 2018 |
| 20613 | Mullins, John S | | Oil Operator | Nov 2014 |
| 20614 | Mullins, Manuel | Olney, TX 76374 | Oil & Gas Operator | Feb 2026 |
| 20615 | Mulloy Operating, Inc. | Midland, TX 79701 | Oil & Gas Operator | Feb 2026 |
| 20616 | Mulloy, J. W. Associates, Inc. | Midland, TX 79701 | Oil & Gas Operator | Jan 2003 |
| 20617 | Multipay Energy, Inc. | Austin, TX 78749 | Oil Operator | Feb 2026 |
| 20618 | Multiplex Resources, Inc. | Baytown, TX 77521 | Oil Operator | Dec 2009 |
| 20619 | Multistate Oil P | | Gas Operator | Apr 1990 |
| 20620 | Multistates Oil Properties, NV | Oklahoma City, OK 73112 | Oil & Gas Operator | Nov 1998 |
| 20621 | Mumford, Catherine | Waterloo, NY 13165 | Gas Operator | Dec 2024 |
| 20622 | Mumford-Gabel, Jennifer And Kyle Gabel | Lawtons, NY 14091 | Gas Operator | Dec 2024 |
| 20623 | Mumma Oil Production Co., Inc. | Allentown, PA 18109-0000 | Oil & Gas Operator | Dec 2019 |
| 20624 | Munday Operating Co., L.L.C. | | Oil & Gas Operator | May 2007 |
| 20625 | Mundell F E | Watertown, SD 57201 | Oil & Gas Operator | Aug 1994 |
| 20626 | Munn, W. H. Operating Company | Midland, TX 79702 | Oil & Gas Operator | Sep 2002 |
| 20627 | Munoco Co. L.C. | | Oil & Gas Operator | Jun 2003 |
| 20628 | Munoco Company | El Dorado, AR 71730 | Oil & Gas Operator | Jul 2021 |
| 20629 | Munoz Farms Operating Co., LLC | Carrizo SPGS, TX 78834 | Oil & Gas Operator | Feb 2026 |
| 20630 | Munoz, Magdaleno C. | Borger, TX 79007 | Oil Operator | Feb 2026 |
| 20631 | Munson Dave Company | Dallas, TX 75201-3591 | Oil Operator | Aug 1996 |
| 20632 | Munson Operating, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Feb 2026 |
| 20633 | Munson, Charles C. | Dallas, TX 75201 | Oil & Gas Operator | Apr 2002 |
| 20634 | Munson, David M. | Dallas, TX 75201 | Oil & Gas Operator | Mar 2015 |
| 20635 | Munson, David M. Inc. | Dallas, TX 75251 | Oil & Gas Operator | Feb 2026 |
| 20636 | Munson, E. P., Jr. | Fort Worth, TX 76121 | Oil & Gas Operator | Oct 1995 |
| 20637 | Muras Energy Inc | Edmond, OK 73013 | Oil & Gas Operator | Nov 2025 |
| 20638 | Murchison Oil & | | Oil Operator | Mar 1988 |
| 20639 | Murchison Oil & Gas Inc | Plano, TX 75024 | Oil & Gas Operator | Aug 2020 |
| 20640 | Murchison Oil And Gas, LLC | Plano, TX 75024 | Oil & Gas Operator | Feb 2025 |
| 20641 | Murchison, G. B. Trust | Dallas, TX 75283 | Oil & Gas Operator | Sep 1994 |
| 20642 | Murdoch Oil Co Inc | Bluff, UT 84512 | Oil & Gas Operator | Jun 2010 |
| 20643 | Murex Petroleum Corporation | Humble, TX 77347 | Oil & Gas Operator | Dec 2025 |
| 20644 | Murexco Petroleum Inc | Dallas, TX 75251 | Oil & Gas Operator | Oct 1996 |
| 20645 | Murfin Drilling | | Oil & Gas Operator | Jul 1997 |
| 20646 | Murfin Drilling Company, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Dec 2025 |
| 20647 | Murjo Oil & Royalty Company | Fort Worth, TX 76121 | Oil & Gas Operator | Aug 2025 |
| 20648 | Murk, James M. | Wheaton, IL 60189 | Gas Operator | Jan 1999 |
| 20649 | Muroz International Group Inc | Houston, TX 77056 | Oil Operator | Feb 2026 |
| 20650 | Murphree Brothers Production | Monahans, TX 79756 | Oil & Gas Operator | Feb 2026 |
| 20651 | Murphree Production | Monahans, TX 79756 | Oil & Gas Operator | Jul 2014 |
| 20652 | Murphrey Oil Company, Inc. | | Oil Operator | Jan 2025 |
| 20653 | Murphy & Associates, Inc. | Snyder, TX 79549 | Oil & Gas Operator | Oct 1996 |
| 20654 | Murphy - Sun | | Oil & Gas Operator | May 1989 |
| 20655 | Murphy D V | | Oil Operator | Dec 1989 |
| 20656 | Murphy Energy Services, LP | Saratoga, TX 77585 | Oil Operator | Dec 2018 |
| 20657 | Murphy Exp & Prod Co.-USA | | Oil & Gas Operator | May 2014 |
| 20658 | Murphy Expl. & Prod. Co. - USA | Houston, TX 77024 | Oil & Gas Operator | Feb 2026 |
| 20659 | Murphy Exploration & Prod. Co. | Houston, TX 77094 | Oil & Gas Operator | Jun 2011 |
| 20660 | Murphy Exploration & Production | Houston, TX 77024 | Oil Operator | Jan 2025 |
| 20661 | Murphy Helen Colpitt Trust | Collinsville, OK 74021-0128 | Oil & Gas Operator | May 2002 |
| 20662 | Murphy Jack L | Tulsa, OK 74104-4915 | Oil Operator | Mar 2015 |
| 20663 | Murphy Oil Company Inc | Lancaster, OH 43130 | Oil & Gas Operator | Dec 2024 |
| 20664 | Murphy Oil USA, Inc. | New Orleans, LA 70161 | Oil & Gas Operator | Jan 1993 |
| 20665 | Murphy Operating Corp | Roswell, NM 88202 | Oil & Gas Operator | Apr 1998 |
| 20666 | Murphy Prod Inc | Vanderbilt, PA 15486-1001 | Oil & Gas Operator | Dec 2025 |
| 20667 | Murphy Production Co. (Inc.) | | Oil & Gas Operator | Apr 1991 |
| 20668 | Murphy Production Corp. | Austin, TX 78731 | Oil & Gas Operator | Sep 2013 |
| 20669 | Murphy Sheldon L & Loretta | Newcastle, WY 82701 | Oil & Gas Operator | Jan 2026 |
| 20670 | Murphy, Bill W. Operating Co,Inc | Richardson, TX 75080 | Oil & Gas Operator | Feb 2026 |
| 20671 | Murphy, Charles H. | Altoona, KS 66710 | Oil Operator | Jul 2022 |
| 20672 | Murphy, Douglas S. | Sherman, NY 14781 | Gas Operator | Dec 2024 |
| 20673 | Murphy, Earl M. | Madison, KS 66860 | Oil Operator | Jun 1999 |
| 20674 | Murphy, K. P. Oil Operator | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 20675 | Murray Hill Energy, Inc. | Bridgeport, WV 26330 | Oil & Gas Operator | Dec 2017 |
| 20676 | Murray J. Evans | | Oil Operator | Mar 1985 |
| 20677 | Murray Oil And Gas LLC | Greensburg, KS 67054 | Oil & Gas Operator | Sep 2025 |
| 20678 | Murray, Tom Enterprises | Monahans, TX 79756 | Oil & Gas Operator | Feb 2026 |
| 20679 | Murray-Teague Assoc. | | Oil Operator | Dec 2005 |
| 20680 | Murtha Contracting Inc. | Conneaut, OH 44030 | Oil & Gas Operator | Dec 2009 |
| 20681 | Murvin & Meier Oil Co. | | Oil & Gas Operator | Dec 2020 |
| 20682 | Musgrave, Dalton | | Oil Operator | Dec 2020 |
| 20683 | Musgrove Casey O | | Oil Operator | Oct 1993 |
| 20684 | Musgrove Casey Oil | Ponca City, OK 74602-0391 | Oil & Gas Operator | Jun 2017 |
| 20685 | Musgrove Energy Inc | Ponca City, OK 74602 | Oil & Gas Operator | Sep 2025 |
| 20686 | Musgrove Petrole | | Oil & Gas Operator | Dec 1996 |
| 20687 | Musgrove Produci | | Oil Operator | May 1989 |
| 20688 | Musgrove Producing | El Dorado, KS 67042 | Oil Operator | Apr 2001 |
| 20689 | Muskegon Development Company | MT Pleasant, MI 48858 | Oil & Gas Operator | Feb 2026 |
| 20690 | Muslow And Parker | | Oil & Gas Operator | Jul 1994 |
| 20691 | Muslow Oil Industries | | Oil Operator | Jan 1995 |
| 20692 | Musselman, Owen & King Oper.,Inc | Houston, TX 77002 | Oil & Gas Operator | Feb 1998 |
| 20693 | Mustang Drilling | | Oil & Gas Operator | Nov 1996 |
| 20694 | Mustang Drilling, Inc. | Henderson, TX 75653 | Oil & Gas Operator | Aug 2024 |
| 20695 | Mustang Drilling, LTD. | Henderson, TX 75653 | Oil & Gas Operator | May 2008 |
| 20696 | Mustang Energy Corporation | Hays, KS 67601 | Oil Operator | Sep 2025 |
| 20697 | Mustang Energy Inc. | Porter, TX 77365 | Oil & Gas Operator | Mar 2008 |
| 20698 | Mustang Energy L C | | Oil & Gas Operator | Jan 2013 |
| 20699 | Mustang Fuel Cor | | Oil & Gas Operator | Dec 1990 |
| 20700 | Mustang Fuel Corp. Of Oklahoma | Oklahoma City, OK 73106 | Oil & Gas Operator | Nov 2016 |