| 19801 | Mobile Gulf, Inc. | | Oil & Gas Operator | Aug 1985 |
| 19802 | Mobile Petrovac, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2025 |
| 19803 | Mobile Production Systems, Inc. | Austin, TX 78711 | Oil & Gas Operator | Feb 1995 |
| 19804 | Mobley & Davis | | Oil & Gas Operator | Oct 1986 |
| 19805 | Mobley & McCain | | Oil & Gas Operator | Nov 1979 |
| 19806 | Mobley & McCain, Et Al | | Oil & Gas Operator | Jul 1986 |
| 19807 | Mobley Oil Company, Inc. | | Oil & Gas Operator | Feb 1990 |
| 19808 | Mobley Valve Service, Inc. | | Oil & Gas Operator | Nov 2006 |
| 19809 | Mobpar, Inc. | Houston, TX 77219 | Oil & Gas Operator | Apr 2025 |
| 19810 | Mobreal Oil Inc | Wilmington, DE 19808 | Oil & Gas Operator | Dec 1989 |
| 19811 | Mockingbird Oil, Inc. (I) | Spring, TX 77389 | Oil & Gas Operator | Apr 2025 |
| 19812 | Moco Oil Inc | | Oil Operator | May 1984 |
| 19813 | Moco Operating Company | | Oil & Gas Operator | Mar 2002 |
| 19814 | Mode Oil & Gasdev LTD12/21/Ofb 9-98 | | Oil & Gas Operator | May 2013 |
| 19815 | Modena Operating LLC | Houston, TX 77057 | Oil & Gas Operator | Apr 2025 |
| 19816 | Modern Exploration, Inc. | Sherman, TX 75090 | Oil & Gas Operator | Apr 2025 |
| 19817 | Modus Inc. | | Oil & Gas Operator | Dec 2024 |
| 19818 | Moenning, Vernie | Electra, TX 76360 | Oil & Gas Operator | Apr 2025 |
| 19819 | Moff Oil Company | Pratt, KS 67124 | Gas Operator | Apr 1988 |
| 19820 | Moffitt W G Trust | Fort Gibson, OK 74434-4258 | Gas Operator | Nov 2019 |
| 19821 | Mogo Reagan, LLC | Cut Bank, MT 59427 | Oil & Gas Operator | Jan 2025 |
| 19822 | Mogul Energy Corp | Los Angeles, CA 90024 | Oil & Gas Operator | Jan 2001 |
| 19823 | Mogul Energy International, Inc. | Houston, TX 77042 | Oil & Gas Operator | Oct 2017 |
| 19824 | Mogul Operating LLC | St Petersburg, FL 33706 | Oil Operator | Apr 2025 |
| 19825 | Mogul Resources, LLC | Ranger, TX 76470 | Oil & Gas Operator | Apr 2025 |
| 19826 | Mohawk Drilling Company | | Oil & Gas Operator | Nov 1998 |
| 19827 | Mohawk Operating LLC | Oklahoma City, OK 73173-8907 | Gas Operator | Feb 2004 |
| 19828 | Mohawk Petroleum | | Oil & Gas Operator | Jan 1995 |
| 19829 | Mohican Exploration, LLC | Graham, TX 76450 | Oil & Gas Operator | Oct 2024 |
| 19830 | Mohican Oil & Gas, L.L.C. | Corpus Chrsti, TX 78476 | Oil & Gas Operator | Apr 2013 |
| 19831 | Mohican Operating, L.L.C. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2021 |
| 19832 | Mohr, Steve | Maize, KS 67101 | Oil Operator | Aug 2022 |
| 19833 | Mojac Energy Corp. | Houston, TX 77056 | Oil & Gas Operator | Dec 1997 |
| 19834 | Mojave Operating Company | Midland, TX 79702 | Oil & Gas Operator | Nov 2002 |
| 19835 | Mojave Resources, LLC | New Braunfels, TX 78132 | Oil Operator | Apr 2025 |
| 19836 | Mojo Exploration & Production, L | Spring Branch, TX 78070 | Oil Operator | Apr 2025 |
| 19837 | Mokan Capital, LLC | Spicewood, TX 78669 | Oil Operator | Apr 2025 |
| 19838 | Molder, Tom | Imperial, TX 79743 | Oil & Gas Operator | Apr 2025 |
| 19839 | Mole Hole Prod. | Bridgeport, TX 76426 | Oil Operator | Apr 2025 |
| 19840 | Mole Operating Co., Inc. | | Oil & Gas Operator | Oct 1983 |
| 19841 | Moleco, LLC | Santa Anna, TX 76878 | Oil Operator | Apr 2025 |
| 19842 | Moleo Gas Corp. | San Angelo, TX 76902 | Oil & Gas Operator | Apr 2018 |
| 19843 | Molitor Oil, Inc. | Wichita, KS 67205 | Oil & Gas Operator | Dec 2024 |
| 19844 | Moller, Herbert T. | Wichita Falls, TX 76301 | Oil & Gas Operator | Aug 2003 |
| 19845 | Mollett Oil Productions, LLC | Thelma, KY 41260 | Oil Operator | Dec 2020 |
| 19846 | Molly Oil & Gas, LLC | Dallas, TX 75209 | Oil & Gas Operator | Apr 2025 |
| 19847 | Molopo Energy Texas, LLC | Canada, 00100 | Oil & Gas Operator | Jan 2015 |
| 19848 | Molsdorf Ag LLC | McAllen, TX 78503 | Oil Operator | Sep 2013 |
| 19849 | Molz Oil Company | Kiowa, KS 67070 | Oil & Gas Operator | Feb 2025 |
| 19850 | Momentum Energy Corporation | Austin, TX 78746 | Oil & Gas Operator | Apr 2025 |
| 19851 | Momentum Energy, LLC | Midland, TX 79702 | Oil & Gas Operator | Feb 2004 |
| 19852 | Momentum Oil & Gas, LLC | The Woodlands, TX 77382 | Oil & Gas Operator | May 2015 |
| 19853 | Momentum Oil Company | Albany, TX 76430 | Oil & Gas Operator | May 2003 |
| 19854 | Momentum Operating Co., Inc. | Albany, TX 76430 | Oil & Gas Operator | Apr 2025 |
| 19855 | Momentum Production Corp. | Baytown, TX 77521 | Oil & Gas Operator | Apr 2025 |
| 19856 | Moms Oil & Gas LLC | Nowata, OK 74048-9436 | Oil & Gas Operator | Mar 2023 |
| 19857 | Mon Corp. | Pampa, TX 79066 | Oil & Gas Operator | Apr 2025 |
| 19858 | Mon-Oil Inc | | Oil & Gas Operator | Apr 1996 |
| 19859 | Monadnock Resources Op Co, LLC | Dallas, TX 75209 | Oil & Gas Operator | Jan 2021 |
| 19860 | Monadnock Resources, LLC | Addison, TX 75001 | Oil & Gas Operator | May 2020 |
| 19861 | Monago Operating Inc | | Oil & Gas Operator | Mar 2017 |
| 19862 | Monahan | | Oil Operator | Dec 2009 |
| 19863 | Monahan Rex | Sterling, CO 80751 | Oil & Gas Operator | Jun 2002 |
| 19864 | Monahan* Rex Family Trust | | Oil & Gas Operator | Sep 2010 |
| 19865 | Monarch Energy C | | Oil Operator | Nov 1987 |
| 19866 | Monarch Energy Company LLC | Eufaula, OK 74432 | Oil & Gas Operator | Feb 2025 |
| 19867 | Monarch Energy LLC | Paola, KS 66071 | Oil Operator | Dec 2024 |
| 19868 | Monarch Operating Company | Graham, TX 76450 | Oil & Gas Operator | Jun 2006 |
| 19869 | Monarch Petroleum Corporation | FT Worth, TX 76102 | Oil & Gas Operator | Dec 2019 |
| 19870 | Moncrief Oil | Casper, WY 82602 | Oil & Gas Operator | Feb 1986 |
| 19871 | Moncrief R W Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 1994 |
| 19872 | Moncrief W A Jr | Fort Worth, TX 76102 | Oil & Gas Operator | Feb 2025 |
| 19873 | Moncrief, C. B. | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2021 |
| 19874 | Monday Creek Resources LTD | Logan, OH 43138 | Oil Operator | Dec 2024 |
| 19875 | Mondiale Energy, Inc. | Brownwood, TX 76801 | Oil & Gas Operator | Apr 2025 |
| 19876 | Mondo Operating Company | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2025 |
| 19877 | Monex | | Oil Operator | Apr 1988 |
| 19878 | Monexco | Edmond, OK 73034-3776 | Oil & Gas Operator | Mar 2008 |
| 19879 | Monexco LLC | Dallas, TX 75204-2634 | Oil & Gas Operator | Jan 2025 |
| 19880 | Monexco Operating Company | Dallas, TX 75204-2634 | Oil & Gas Operator | Jan 2025 |
| 19881 | Monexco, Inc. | | Oil Operator | Dec 2003 |
| 19882 | Monfort, Roy C. | Iola, KS 66749 | Oil & Gas Operator | Sep 1989 |
| 19883 | Monge Oil Corp. | | Oil & Gas Operator | Dec 2021 |
| 19884 | Mongoose Energy, LLC | San Antonio, TX 78249 | Oil & Gas Operator | Apr 2025 |
| 19885 | Mongrue Oil Company, Inc. | | Oil & Gas Operator | Oct 1999 |
| 19886 | Mongrue, Roland, Inc | | Oil & Gas Operator | Mar 1979 |
| 19887 | Monitor O&G, L.L.C. | Frisco, TX 75034 | Oil & Gas Operator | Jan 2016 |
| 19888 | Monona LLC | Ligonier, PA 15658-0612 | Gas Operator | Jan 2025 |
| 19889 | Monroe County Water Authority | Rochester, NY 14612 | Gas Operator | Dec 2023 |
| 19890 | Monroe Gas Associates-1 | | Gas Operator | Mar 2000 |
| 19891 | Monroe Gas Associates-2 | | Gas Operator | Mar 2000 |
| 19892 | Monroe Gas Joint Venture | | Gas Operator | Sep 2011 |
| 19893 | Monroe James | | Oil & Gas Operator | Oct 1997 |
| 19894 | Monroe Natural Gas Inc | Norman, OK 73071 | Oil & Gas Operator | Jan 2025 |
| 19895 | Monroe Res LTD | Fairport, NY 14450-3218 | Gas Operator | Dec 2004 |
| 19896 | Monroe Well Ser-Amsterdam | | Oil Operator | Dec 1988 |
| 19897 | Monroe Well Ser-La Petr Assoc | | Oil Operator | Dec 1988 |
| 19898 | Monroe Well Ser-La Petro II | | Oil Operator | Dec 1988 |
| 19899 | Monroe Well Ser-New American85 | | Oil Operator | Dec 1988 |
| 19900 | Monroe Well Ser-Ocean Petr '84 | | Oil & Gas Operator | Dec 1988 |