| 2101 | Morning Gun Exploration LLC | | Oil Operator | Oct 2021 |
| 2102 | Morning Star Oil Company | Thermopolis, WY 82443 | Oil Operator | Oct 2024 |
| 2103 | Morningstar Gas, Inc. | Las Vegas, NV 89117 | Gas Operator | Dec 2024 |
| 2104 | Morningstar Operating LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2024 |
| 2105 | Morningstar Partners, L.P. | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2022 |
| 2106 | Moro Bay Oil Company, Inc. | | Oil Operator | Jan 1997 |
| 2107 | Morreale, Michael G. & John W. | Frewsburg, NY 14738 | Gas Operator | Dec 2023 |
| 2108 | Morred, Inc. | Borger, TX 79007 | Oil & Gas Operator | Dec 2024 |
| 2109 | Morrell, W. R. | Albany, TX 76430 | Oil & Gas Operator | Dec 2024 |
| 2110 | Morris & Associates | Purcell, OK 73080 | Oil Operator | Feb 2012 |
| 2111 | Morris & Morris | | Oil Operator | Sep 1995 |
| 2112 | Morris A Richardson Dba Fair VIew Production | Muldrow, OK 74948 | Oil Operator | Sep 2006 |
| 2113 | Morris Beall Oil & Gas Co | | Oil & Gas Operator | Dec 2021 |
| 2114 | Morris Dennis J | Cameron, OK 74932-2186 | Gas Operator | Aug 2024 |
| 2115 | Morris Ed Dba Morris Operating Company | Mounds, OK 74047-4801 | Oil & Gas Operator | Sep 2024 |
| 2116 | Morris Everett E | | Oil & Gas Operator | Feb 1991 |
| 2117 | Morris Oil & Gas Co., Inc | | Oil & Gas Operator | Dec 2021 |
| 2118 | Morris Oil Operations | | Oil Operator | Jul 2024 |
| 2119 | Morris Operating Co | Lovington, NM 88260 | Oil & Gas Operator | Dec 2024 |
| 2120 | Morris Pete Drilling Company | | Oil Operator | Feb 1999 |
| 2121 | Morris R. Greenhaw Oil&Gas, Inc | Desdemona, TX 76445 | Oil & Gas Operator | Dec 2024 |
| 2122 | Morris Richard B | | Oil Operator | Dec 1996 |
| 2123 | Morris Roger Dan | Cushing, OK 74023 | Oil & Gas Operator | Aug 2024 |
| 2124 | Morris, Carl R | | Oil & Gas Operator | Dec 2015 |
| 2125 | Morris, W. Dale Inc. | Mineral Wells, TX 76068 | Oil & Gas Operator | Dec 2024 |
| 2126 | Morrison DRLG. & Prod. Co., Inc. | Abilene, TX 79606 | Oil & Gas Operator | Nov 2008 |
| 2127 | Morrison International Energy Inc | Oklahoma City, OK 73189-0537 | Oil & Gas Operator | Sep 2024 |
| 2128 | Morrison Oil Co. LLC | | Oil & Gas Operator | Aug 2024 |
| 2129 | Morrison Oil Company | Bartlesville, OK 74003 | Oil Operator | Mar 2015 |
| 2130 | Morrison, Mark L. | Yates Center, KS 66783 | Oil Operator | Jul 2024 |
| 2131 | Morrison-Dixon O | | Oil Operator | Oct 1993 |
| 2132 | Morrow Oil & Gas Co. | Terry, MS 39170 | Oil & Gas Operator | Jun 2024 |
| 2133 | Morrow Operating Co., Inc. | | Oil Operator | Mar 2003 |
| 2134 | Morrow Resources, Inc. | San Angelo, TX 76904 | Oil & Gas Operator | Oct 2004 |
| 2135 | Morrow, Joe | Farmington, NM 87401 | Oil Operator | Jan 1993 |
| 2136 | Morrows Stoney Point Farm Inc | New Concord, OH 43762 | Oil & Gas Operator | Dec 2017 |
| 2137 | Morse, John R. | Portland, NY 14769 | Gas Operator | Dec 2023 |
| 2138 | Morsey Oil & Gas | | Oil & Gas Operator | Mar 1995 |
| 2139 | Morsey Oil & Gas Corporation | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Dec 2024 |
| 2140 | Mortimer Exploration Company | San Antonio, TX 78209 | Oil & Gas Operator | Sep 2003 |
| 2141 | Mortimer Production Company | San Antonio, TX 78209 | Oil & Gas Operator | Dec 2024 |
| 2142 | Morton And Dolley | | Oil Operator | Dec 1991 |
| 2143 | Morton Bros A Partnership | Bristow, OK 74010-0403 | Oil & Gas Operator | Jul 2003 |
| 2144 | Morton Brothers Company | Bristow, OK 74010 | Oil & Gas Operator | May 2009 |
| 2145 | Morton Drilling Company | Bristow, OK 74010-1279 | Oil & Gas Operator | Jun 1995 |
| 2146 | Morton Leases | Morris, OK 74445-2048 | Oil & Gas Operator | Jul 2017 |
| 2147 | Morton Leases Inc | | Oil & Gas Operator | Aug 2024 |
| 2148 | Morton Production Inc | Ada, OK 74820-2643 | Oil & Gas Operator | Sep 2014 |
| 2149 | Morton Valley Oil & Gas, Inc. | Dallas, TX 75222 | Oil & Gas Operator | Jun 2007 |
| 2150 | Morton, J. V. Oil Co. | Iowa Park, TX 76367 | Oil & Gas Operator | Nov 1999 |
| 2151 | Mosaic Midland LLC | Dallas, TX 75367 | Oil Operator | Dec 2024 |
| 2152 | Mosaic Oil LLC | Dallas, TX 75205 | Oil & Gas Operator | Dec 2024 |
| 2153 | Mosaic Pecos LLC | Dallas, TX 75367 | Oil Operator | Dec 2024 |
| 2154 | Mosaic Texas LLC | Dallas, TX 75205 | Oil & Gas Operator | Dec 2024 |
| 2155 | Mosbacher Energy Company | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
| 2156 | Mosbacher Production Co. | Houston, TX 77001 | Oil & Gas Operator | Aug 1984 |
| 2157 | Mosbacher, Robert-Pruet, Chesley | | Oil & Gas Operator | Dec 1983 |
| 2158 | Moseley Petroleum Corp. | | Oil & Gas Operator | Apr 1988 |
| 2159 | Moseley, J. T. | Temple, TX 76502 | Oil & Gas Operator | Sep 2008 |
| 2160 | Moses, Tom | Beaumont, TX 77702 | Oil Operator | Dec 2024 |
| 2161 | Mosher Gas, LLC | Knoxville, PA 16928 | Gas Operator | Dec 2023 |
| 2162 | Moskowitz Charles J | | Oil Operator | Feb 2014 |
| 2163 | Moskowitz Oil & Gas LLC | | Oil Operator | Jun 2024 |
| 2164 | Mosley Oil &Gas Inc | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
| 2165 | Mosman Operating, LLC | Dallas, TX 75204 | Oil Operator | Dec 2024 |
| 2166 | Moss Petroleum Company | Dallas, TX 75207 | Oil & Gas Operator | Dec 2024 |
| 2167 | Moss Properties Inc | | Oil & Gas Operator | Mar 1986 |
| 2168 | Moss SWD, LLC | Andrews, TX 79714 | Oil Operator | Dec 2024 |
| 2169 | Moss Ted A Operating Company | Oklahoma City, OK 73126-0187 | Oil & Gas Operator | Jun 1997 |
| 2170 | Moss William Properties Inc | Dallas, TX 75219 | Oil & Gas Operator | Apr 2014 |
| 2171 | Moss, William Corp. | Dallas, TX 75219 | Oil & Gas Operator | Oct 2002 |
| 2172 | Mossholder Drilling Co | Newark, OH 43055 | Oil Operator | Dec 1990 |
| 2173 | Mossholder Linda Dba | Newark, OH 43055 | Oil & Gas Operator | Dec 2015 |
| 2174 | Mossor, Kenneth Everett | Ellenboro, WV 26346-0057 | Oil & Gas Operator | Dec 2021 |
| 2175 | Mossor, L. E. | Harrisville, WV 26362-0000 | Oil & Gas Operator | Dec 2002 |
| 2176 | Mosthaf Edwin C And Mosthaf Levina M | | Oil Operator | Jul 2020 |
| 2177 | Mote Resources, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Dec 2004 |
| 2178 | Mott Energy LLC | Riverview, FL 33569-6702 | Oil & Gas Operator | Aug 2024 |
| 2179 | Mott Oil & Gas | Sugarland, TX 77478 | Oil & Gas Operator | May 2001 |
| 2180 | Mott Petroleum Corporation | Sugar Land, TX 77487 | Oil & Gas Operator | Aug 2024 |
| 2181 | Motto Energy Inc. | Normantown, WV 25267-8215 | Oil & Gas Operator | Dec 2021 |
| 2182 | Mount Chestnut Dev LLC | Butler, PA 16002-3940 | Gas Operator | Dec 2017 |
| 2183 | Mount Richard | Newark, OH 43055 | Oil Operator | Dec 2005 |
| 2184 | Mount, Thomas | North East, PA 16428 | Gas Operator | Dec 2023 |
| 2185 | Mountain Creek Energy Inc | Georgetown, TX 78633 | Oil & Gas Operator | Aug 2024 |
| 2186 | Mountain Creek Oil Company, Inc. | Saint Jo, TX 76265 | Oil & Gas Operator | Dec 2024 |
| 2187 | Mountain Divide, LLC | | Oil & Gas Operator | Mar 2017 |
| 2188 | Mountain Front Pipeline Co Inc | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2015 |
| 2189 | Mountain Fuel Supply Co | Salt Lake City, UT 84139 | Oil & Gas Operator | May 1984 |
| 2190 | Mountain Hawk Energy LLC | Athens, TX 75751 | Gas Operator | Jan 2015 |
| 2191 | Mountain Oil And Gas Inc | Roosevelt, UT 84066 | Oil & Gas Operator | Sep 2024 |
| 2192 | Mountain Pacific General Inc. | Cut Bank, MT 59427 | Oil & Gas Operator | Jun 2022 |
| 2193 | Mountain Petroleum Corp | Denver, CO 80202 | Oil & Gas Operator | Jan 2016 |
| 2194 | Mountain Resource Corporation | Salt Lake City, UT 84124 | Oil & Gas Operator | Dec 1988 |
| 2195 | Mountain State Oil Company, L..L.C. | Pennsboro, WV 26415-0014 | Oil & Gas Operator | Dec 2021 |
| 2196 | Mountain State Production, Inc | | Gas Operator | Dec 2022 |
| 2197 | Mountain State Well Tending | Hurricane, WV 25526-0000 | Oil & Gas Operator | Dec 2021 |
| 2198 | Mountain States Petroleum Corp | Midland, TX 79702 | Oil & Gas Operator | Apr 2008 |
| 2199 | Mountain States Resources Inc | Cut Bank, MT 59427 | Oil & Gas Operator | Oct 2000 |
| 2200 | Mountain V Oil & Gas, Inc. | Buckhannon, WV 26201 | Oil & Gas Operator | Dec 2021 |