| 20001 | Munoz Farms Operating Co., LLC | Carrizo SPGS, TX 78834 | Oil & Gas Operator | Jun 2025 |
| 20002 | Munson Dave Company | Dallas, TX 75201-3591 | Oil Operator | Aug 1996 |
| 20003 | Munson Operating, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Jun 2025 |
| 20004 | Munson, Charles C. | Dallas, TX 75201 | Oil & Gas Operator | Apr 2002 |
| 20005 | Munson, David M. | Dallas, TX 75201 | Oil & Gas Operator | Mar 2015 |
| 20006 | Munson, David M. Inc. | Dallas, TX 75251 | Oil & Gas Operator | Jun 2025 |
| 20007 | Munson, E. P., Jr. | Fort Worth, TX 76121 | Oil & Gas Operator | Oct 1995 |
| 20008 | Muras Energy Inc | Edmond, OK 73013 | Oil & Gas Operator | Mar 2025 |
| 20009 | Murchison Oil & | | Oil Operator | Mar 1988 |
| 20010 | Murchison Oil & Gas Inc | Plano, TX 75024 | Oil & Gas Operator | Mar 2024 |
| 20011 | Murchison Oil And Gas, LLC | Plano, TX 75024 | Oil & Gas Operator | Feb 2025 |
| 20012 | Murchison Trusts | | Gas Operator | Sep 2003 |
| 20013 | Murchison, G. B. Trust | Dallas, TX 75283 | Oil & Gas Operator | Sep 1994 |
| 20014 | Murdoch Oil Co Inc | Bluff, UT 84512 | Oil & Gas Operator | Jun 2010 |
| 20015 | Murex Petroleum Corporation | Humble, TX 77347 | Oil & Gas Operator | Apr 2025 |
| 20016 | Murexco Petroleum, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Oct 1996 |
| 20017 | Murfin Drilling | | Oil & Gas Operator | Jul 1997 |
| 20018 | Murfin Drilling Company Inc | Wichita, KS 67202 | Oil & Gas Operator | Apr 2025 |
| 20019 | Murjo Oil & Royalty Company | Fort Worth, TX 76121 | Oil & Gas Operator | Feb 2025 |
| 20020 | Murk, James M. | Wheaton, IL 60189 | Gas Operator | Jan 1999 |
| 20021 | Muroz International Group Inc | Houston, TX 77056 | Oil Operator | Jun 2025 |
| 20022 | Murphree Brothers Production | Monahans, TX 79756 | Oil & Gas Operator | Jun 2025 |
| 20023 | Murphree Production | Monahans, TX 79756 | Oil & Gas Operator | Jul 2014 |
| 20024 | Murphrey Oil Co | | Oil Operator | Jan 2025 |
| 20025 | Murphy & Associates, Inc. | Snyder, TX 79549 | Oil & Gas Operator | Oct 1996 |
| 20026 | Murphy - Sun | | Oil & Gas Operator | May 1989 |
| 20027 | Murphy D V | | Oil Operator | Dec 1989 |
| 20028 | Murphy Energy Services, LP | Saratoga, TX 77585 | Oil Operator | Dec 2018 |
| 20029 | Murphy Exp & Prod Co.-USA | | Oil & Gas Operator | May 2014 |
| 20030 | Murphy Expl. & Prod. Co. - USA | Houston, TX 77024 | Oil & Gas Operator | Jun 2025 |
| 20031 | Murphy Exploration & Prod. Co. | Houston, TX 77094 | Oil & Gas Operator | Jun 2011 |
| 20032 | Murphy Exploration & Production | Houston, TX 77024 | Oil Operator | Dec 2024 |
| 20033 | Murphy Helen Colpitt Trust | Collinsville, OK 74021-0128 | Oil & Gas Operator | May 2002 |
| 20034 | Murphy Jack L | Tulsa, OK 74104-4915 | Oil Operator | Mar 2015 |
| 20035 | Murphy Oil Company Inc | Lancaster, OH 43130 | Oil & Gas Operator | Dec 2023 |
| 20036 | Murphy Oil USA Inc | New Orleans, LA 70161 | Oil & Gas Operator | Jan 1993 |
| 20037 | Murphy Operating Corp | Roswell, NM 88202 | Oil & Gas Operator | Apr 1998 |
| 20038 | Murphy Prod Inc | Vanderbilt, PA 15486-1001 | Oil & Gas Operator | Dec 2024 |
| 20039 | Murphy Production Co. (Inc.) | | Oil & Gas Operator | Apr 1991 |
| 20040 | Murphy Production Corp. | Austin, TX 78731 | Oil & Gas Operator | Sep 2013 |
| 20041 | Murphy Sheldon L & Loretta | Newcastle, WY 82701 | Oil & Gas Operator | Apr 2025 |
| 20042 | Murphy, Bill W. Operating Co,Inc | Richardson, TX 75080 | Oil & Gas Operator | Jun 2025 |
| 20043 | Murphy, Charles H. | Altoona, KS 66710 | Oil Operator | Jul 2022 |
| 20044 | Murphy, Douglas S. | Sherman, NY 14781 | Gas Operator | Dec 2023 |
| 20045 | Murphy, Earl M. | Madison, KS 66860 | Oil Operator | Jun 1999 |
| 20046 | Murphy, K. P. Oil Operator | Kilgore, TX 75663 | Oil & Gas Operator | Jun 2025 |
| 20047 | Murray Hill Energy, Inc. | Bridgeport, WV 26330 | Oil & Gas Operator | Dec 2017 |
| 20048 | Murray J. Evans | | Oil Operator | Mar 1985 |
| 20049 | Murray Oil And Gas LLC | Greensburg, KS 67054 | Oil & Gas Operator | Feb 2025 |
| 20050 | Murray, Tom Enterprises | Monahans, TX 79756 | Oil & Gas Operator | Jun 2025 |
| 20051 | Murray-Teague Assoc. | | Oil Operator | Dec 2005 |
| 20052 | Murtha Contracting Inc. | Conneaut, OH 44030 | Oil & Gas Operator | Dec 2009 |
| 20053 | Murvin & Meier Oil Co. | | Oil & Gas Operator | Dec 2020 |
| 20054 | Musgrave, Dalton | | Oil Operator | Dec 2020 |
| 20055 | Musgrove Casey O | | Oil Operator | Oct 1993 |
| 20056 | Musgrove Energy Inc | Ponca City, OK 74602 | Oil & Gas Operator | Feb 2025 |
| 20057 | Musgrove Petrole | | Oil & Gas Operator | Dec 1996 |
| 20058 | Musgrove Produci | | Oil Operator | May 1989 |
| 20059 | Musgrove Producing | El Dorado, KS 67042 | Oil Operator | Apr 2001 |
| 20060 | Musgrove, Casey Oil | Ponca City, OK 74602-0391 | Oil & Gas Operator | Jun 2017 |
| 20061 | Muskegon Development Co And Miller Energy Inc An | | Gas Operator | Dec 1997 |
| 20062 | Muskegon Development Company | MT Pleasant, MI 48858 | Oil & Gas Operator | Jun 2025 |
| 20063 | Muskegon Operating Company LLC | | Oil & Gas Operator | Feb 2025 |
| 20064 | Muslow And Parker | | Oil & Gas Operator | Jul 1994 |
| 20065 | Muslow Oil Industries | | Oil Operator | Jan 1995 |
| 20066 | Musselman, Owen & King Oper.,Inc | Houston, TX 77002 | Oil & Gas Operator | Feb 1998 |
| 20067 | Musshafen, Denis | Linwood, NY 14486 | Gas Operator | Dec 2023 |
| 20068 | Mustang Drilling | | Oil & Gas Operator | Nov 1996 |
| 20069 | Mustang Drilling, Inc. | Henderson, TX 75653 | Oil & Gas Operator | Aug 2024 |
| 20070 | Mustang Drilling, LTD. | Henderson, TX 75653 | Oil & Gas Operator | May 2008 |
| 20071 | Mustang Energy Corporation | Hays, KS 67601 | Oil Operator | Feb 2025 |
| 20072 | Mustang Energy Inc. | Porter, TX 77365 | Oil & Gas Operator | Mar 2008 |
| 20073 | Mustang Energy L C | | Oil & Gas Operator | Jan 2013 |
| 20074 | Mustang Fuel Cor | | Oil & Gas Operator | Dec 1990 |
| 20075 | Mustang Fuel Corp. Of Oklahoma | Oklahoma City, OK 73106 | Oil & Gas Operator | Nov 2016 |
| 20076 | Mustang Fuel Corporation | Oklahoma City, OK 73114 | Oil & Gas Operator | Apr 2025 |
| 20077 | Mustang Gas Products LLC | Oklahoma City, OK 73114-7406 | Oil & Gas Operator | Sep 2022 |
| 20078 | Mustang Holding, LLC (Finnex) | | Oil & Gas Operator | Apr 2025 |
| 20079 | Mustang Oil & Gas Corporation | Wichita Falls, TX 76308 | Oil & Gas Operator | Jul 2021 |
| 20080 | Mustang Operating Company | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2006 |
| 20081 | Mustang Resources LLC | Houston, TX 77256 | Oil & Gas Operator | Apr 2025 |
| 20082 | Mutch Harry L | | Oil & Gas Operator | Oct 1991 |
| 20083 | Mutch J O | | Gas Operator | Mar 1990 |
| 20084 | Mutch Oil And Gas Development Inc | | Oil & Gas Operator | Dec 2004 |
| 20085 | Mutschelknaus, Clarence W | Salem, WV 26426-0351 | Oil & Gas Operator | Dec 2021 |
| 20086 | Mutual Oil & Gas Co | Akron, OH 44311 | Oil & Gas Operator | Dec 2001 |
| 20087 | Mutz Oil Operator | | Oil Operator | Dec 1988 |
| 20088 | Muzyl Oil Corp | | Oil & Gas Operator | Apr 2025 |
| 20089 | MV Purchasing LLC | Wichita, KS 67206 | Oil & Gas Operator | Dec 2019 |
| 20090 | MV2 Energy, Inc. | Houston, TX 77069 | Oil & Gas Operator | Jun 2025 |
| 20091 | MVM Resources Louisiana L.L.C. | | Oil & Gas Operator | Jan 2025 |
| 20092 | MVP Production Inc. | | Oil & Gas Operator | Apr 2005 |
| 20093 | MVRC Partnership | Russell, KS 67655 | Oil Operator | Jan 1992 |
| 20094 | MW Oil, Inc | | Oil & Gas Operator | Feb 2025 |
| 20095 | MW Petroleum Corporation | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
| 20096 | MWJ Producing Company | Midland, TX 79701 | Oil & Gas Operator | Jul 1998 |
| 20097 | MWK Petroleum, LLC | Augusta, KS 67010 | Oil Operator | Feb 2025 |
| 20098 | MWL Energy LLC | Hamlin, TX 79520 | Oil Operator | Jun 2025 |
| 20099 | MWS Producing, Inc. | Stanton, TX 79782 | Oil & Gas Operator | Jun 2025 |
| 20100 | MWWD Operator, LLC | Victoria, TX 77904 | Oil Operator | Jun 2025 |