| 6701 | Marshall, A. B. | Houston, TX 77050 | Oil & Gas Operator | Sep 1995 |
| 6702 | Marshall, Sam | Granbury, TX 76048 | Oil & Gas Operator | Aug 2010 |
| 6703 | Marshall, Samuel Meek, Estate Of | Granbury, TX 76048 | Oil & Gas Operator | Nov 2024 |
| 6704 | Marshco Production LLC | Colorado City, TX 79512 | Oil Operator | Nov 2024 |
| 6705 | Marshfield Oil & Gas, LLC | Houston, TX 77070 | Oil & Gas Operator | Nov 2024 |
| 6706 | Martex Oil & Gas, Inc. | Estes Park, CO 80517 | Oil & Gas Operator | Nov 2024 |
| 6707 | Martin & Richards Oil Co. | Jacksboro, TX 76458 | Oil & Gas Operator | Jul 1995 |
| 6708 | Martin Bros. Oil | Graham, TX 76450 | Oil & Gas Operator | Dec 1993 |
| 6709 | Martin Cannon Interests, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Nov 2024 |
| 6710 | Martin Foree Operating II, LLC | Royse City, TX 75189 | Oil & Gas Operator | Nov 2024 |
| 6711 | Martin Foree Operating, LLC | Royse City, TX 75189 | Oil & Gas Operator | Nov 2024 |
| 6712 | Martin Gas Sales, Inc. | Kilgore, TX 75662 | Oil & Gas Operator | May 1993 |
| 6713 | Martin Matrix Inc. | San Angelo, TX 76905 | Oil & Gas Operator | Nov 2024 |
| 6714 | Martin Oil & Gas | Freer, TX 78357 | Oil & Gas Operator | Aug 2024 |
| 6715 | Martin Oil & Gas Inc. | Freer, TX 78357 | Oil & Gas Operator | Nov 2024 |
| 6716 | Martin Oil Co. | Aspermont, TX 79502 | Oil & Gas Operator | Jul 2023 |
| 6717 | Martin Oil LLC | Madison, KS 66860 | Oil Operator | Jul 2024 |
| 6718 | Martin Petroleum Corp. | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 6719 | Martin Well Service | Graham, TX 76450 | Oil & Gas Operator | Jun 2015 |
| 6720 | Martin Well Service Company | Mineral Wells, TX 76067 | Oil & Gas Operator | Jul 2006 |
| 6721 | Martin, Jimmy Inc | San Angelo, TX 76904 | Oil & Gas Operator | Nov 2024 |
| 6722 | Martin, John I. | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 6723 | Martin, Pat Jr. | Archer City, TX 76351 | Oil & Gas Operator | Dec 2019 |
| 6724 | Martin, Tim | Wichita Falls, TX 76302 | Oil & Gas Operator | Oct 2003 |
| 6725 | Martin, William C. | Houston, TX 77071 | Oil & Gas Operator | Nov 2024 |
| 6726 | Martineau Petroleum, Inc. | Dallas, TX 75206 | Oil & Gas Operator | May 2024 |
| 6727 | Martino, Joseph C. | Pasadena, TX 77504 | Oil & Gas Operator | Nov 2024 |
| 6728 | Martis Valley Energy, LLC | Wichita Falls, TX 76310 | Oil Operator | Nov 2024 |
| 6729 | Marwell Petroleum LTD Partnrship | Houston, TX 77027 | Oil & Gas Operator | Nov 2024 |
| 6730 | Marwell Petroleum, Inc. | Houston, TX 77057 | Oil & Gas Operator | Apr 2006 |
| 6731 | Marymac Oil Company | Lockhart, TX 78644 | Oil & Gas Operator | Sep 2001 |
| 6732 | Mas Operating Co. | Midland, TX 79710 | Oil & Gas Operator | Nov 2024 |
| 6733 | Masa Energy LLC | Houston, TX 77094 | Oil & Gas Operator | Nov 2024 |
| 6734 | Masada Development Company | Lubbock, TX 79416 | Oil & Gas Operator | Nov 2021 |
| 6735 | Masada Oil & Gas | Quanah, TX 79252 | Oil & Gas Operator | Nov 2024 |
| 6736 | Masada Oil & Gas Company LTD. | Abilene, TX 79603 | Oil & Gas Operator | Nov 2024 |
| 6737 | Mascot Oil Company | Schulenburg, TX 78956 | Oil & Gas Operator | Nov 2024 |
| 6738 | Mash Oilfield Services, LP | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 6739 | Mass Energy, Inc | Houston, TX 77056 | Oil & Gas Operator | Mar 2008 |
| 6740 | Massie Oil Company | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 6741 | Massingill & McCutchin | Lubbock, TX 79424 | Oil & Gas Operator | Aug 2003 |
| 6742 | Masters Oil & Gas, LLC | Houston, TX 77079 | Oil & Gas Operator | Nov 2024 |
| 6743 | Masters Rat Hole Service, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Nov 1998 |
| 6744 | Masters Resources, L.L.C. | Houston, TX 77079 | Oil & Gas Operator | Dec 2008 |
| 6745 | Mastodon Operating Company, LLC | Houston, TX 77027 | Oil & Gas Operator | Nov 2024 |
| 6746 | Matador Drilling Corp. | Midland, TX 79708 | Oil & Gas Operator | Mar 1995 |
| 6747 | Matador Operating Company | Dallas, TX 75240 | Oil & Gas Operator | Jul 2003 |
| 6748 | Matador Operating, LLC | Lubbock, TX 79413 | Oil Operator | Nov 2024 |
| 6749 | Matador Production Company | Dallas, TX 75240 | Oil & Gas Operator | Nov 2024 |
| 6750 | Matco Oil Co. | Saratoga, TX 77585 | Oil & Gas Operator | Apr 1999 |
| 6751 | Mathis & Sons, Inc. | Rule, TX 79547 | Oil & Gas Operator | Nov 2024 |
| 6752 | Mathis, Bill | Midland, TX 79702 | Oil & Gas Operator | Nov 2001 |
| 6753 | Matrix Petroleum, LLC | Houston, TX 77077 | Oil & Gas Operator | Nov 2024 |
| 6754 | Matrix Producing Company | Luling, TX 78648 | Oil & Gas Operator | Feb 2005 |
| 6755 | Matrix Production Company | Sugar Land, TX 77478 | Oil & Gas Operator | Jul 2024 |
| 6756 | Mattox, J. R. | Jacksboro, TX 76458 | Oil Operator | Mar 2018 |
| 6757 | Maverick Brothers Operating,Inc. | Enid, OK 73702 | Oil & Gas Operator | Nov 2024 |
| 6758 | Maverick Drilling Co., Inc. | Austin, TX 78729 | Oil & Gas Operator | Mar 2015 |
| 6759 | Maverick Energy & Dev. Corp. | Austin, TX 78746 | Oil & Gas Operator | Nov 2024 |
| 6760 | Maverick Energy Group, Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Nov 2024 |
| 6761 | Maverick Expl. & Drilling Co. | Richland, TX 76681 | Oil & Gas Operator | Aug 2003 |
| 6762 | Maverick Oil Co. | Richland, TX 76681 | Oil Operator | Nov 2024 |
| 6763 | Maverick Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Nov 2024 |
| 6764 | Maverick Permian LLC | Houston, TX 77002 | Oil & Gas Operator | Nov 2024 |
| 6765 | Maverick Prod. Co., Inc. | Houston, TX 77056 | Oil & Gas Operator | Nov 2024 |
| 6766 | Maverick Production | Nocona, TX 76255 | Oil & Gas Operator | May 2007 |
| 6767 | Maverick Properties, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Sep 1994 |
| 6768 | Maxey & Swan Oil Co. | Decatur, TX 76234 | Oil & Gas Operator | Apr 2007 |
| 6769 | Maxim Energy Corporation | Baytown, TX 77520 | Oil & Gas Operator | Sep 2024 |
| 6770 | Maxima Energy Corp. | Kilgore, TX 75663 | Oil & Gas Operator | Sep 2012 |
| 6771 | Maximus Operating, LTD. | Kilgore, TX 75663 | Oil & Gas Operator | Nov 2024 |
| 6772 | Maxum Energy Corp | Plano, TX 75025 | Oil & Gas Operator | Jan 2003 |
| 6773 | Maxus Exploration Company | Dallas, TX 75201 | Oil & Gas Operator | Jan 1995 |
| 6774 | Maxwell Oil & Gas Corp. | Kilgore, TX 75663 | Oil & Gas Operator | Jan 2001 |
| 6775 | Maxwell Resources Corporation | Oklahoma City, OK 73116-7746 | Oil & Gas Operator | Apr 2009 |
| 6776 | Maxwell, J. K. | Kilgore, TX 75662 | Oil & Gas Operator | Aug 1995 |
| 6777 | Maxwell, Richard | Wichita Falls, TX 76301 | Oil & Gas Operator | May 1995 |
| 6778 | Maxwell, Riley G., Co. | Abilene, TX 79604 | Oil & Gas Operator | Jan 2000 |
| 6779 | May Investments, Inc. | New Boston, TX 75570 | Oil & Gas Operator | Aug 2003 |
| 6780 | Mayco Oil | Nocona, TX 76255 | Oil & Gas Operator | Nov 2024 |
| 6781 | Mayes Operating Co. | Stephenville, TX 76401 | Oil & Gas Operator | Oct 2019 |
| 6782 | Mayfield Energy, LLC | Austin, TX 78732 | Oil & Gas Operator | Nov 2024 |
| 6783 | Mayfield Engineering Service | Tulsa, OK 74104 | Oil & Gas Operator | Nov 2024 |
| 6784 | Mayjac I, LLC | Midland, TX 79710 | Oil & Gas Operator | Nov 2024 |
| 6785 | Maynard Oil Co. | Denver, CO 80202 | Oil & Gas Operator | Sep 2004 |
| 6786 | Mayne & Mertz, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2013 |
| 6787 | Mayo Oil Co. | San Antonio, TX 78209 | Oil & Gas Operator | Feb 2019 |
| 6788 | Mayo, Danny | Whitesboro, TX 76273 | Oil & Gas Operator | Nov 2024 |
| 6789 | Mayo, Eddie | Fredericksbrg, TX 78624 | Oil & Gas Operator | Nov 2024 |
| 6790 | Mayo, Keith | Wichita Falls, TX 76301 | Oil & Gas Operator | Sep 2009 |
| 6791 | Mayo, Paul R. | Quinlan, TX 75474 | Oil & Gas Operator | May 1999 |
| 6792 | Mazco Energy LLC | San Antonio, TX 78266 | Oil & Gas Operator | Nov 2024 |
| 6793 | MB Energy, LLC | San Antonio, TX 78233 | Oil & Gas Operator | Nov 2024 |
| 6794 | MB Exploration, LLC | Dallas, TX 75380 | Oil & Gas Operator | Jul 2008 |
| 6795 | MB Operating | Wichita Falls, TX 76309 | Oil & Gas Operator | Mar 2008 |
| 6796 | MBC Operating Co., Inc. | Garland, TX 75042 | Oil & Gas Operator | Aug 1993 |
| 6797 | MBR Resources, Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Nov 2024 |
| 6798 | MBX Operating LLC | Houston, TX 77007 | Oil & Gas Operator | Nov 2024 |
| 6799 | MC Glover, LLC | Albany, TX 76430 | Oil Operator | Nov 2024 |
| 6800 | MC Panhandle, Inc. | Tulsa, OK 74102 | Gas Operator | Jul 1998 |