| 1101 | MAMMOSER | Erie County, NY | Gas Property | Dec 2025 |
| 1102 | MAMMOTH | Brazos County, TX | Oil & Gas Property | May 2026 |
| 1103 | MAMMOTH 1 TB FEDERAL COM | Lea County, NM | Oil & Gas Property | Jun 2026 |
| 1104 | MAMMOTH 1 WA FEDERAL COM | Lea County, NM | Oil & Gas Property | Jun 2026 |
| 1105 | MAMMOTH 54-1-18-19 | Loving County, TX | Oil & Gas Property | May 2026 |
| 1106 | MAMMOTH A | Lavaca County, TX | Oil & Gas Property | May 2026 |
| 1107 | MAMMOTH CAVE 21-4 | Dawson County, TX | Oil & Gas Property | May 2026 |
| 1108 | MAMMOTH PARK 0 | Westmoreland County, PA | Oil & Gas Property | Dec 2025 |
| 1109 | MAMONT SOUTH | Westmoreland County, PA | Gas Property | May 2026 |
| 1110 | MAN O WAR 26 UNIT | Reeves County, TX | Oil & Gas Property | May 2026 |
| 1111 | MAN O WAR 5-8 UNIT | Reeves County, TX | Oil & Gas Property | May 2026 |
| 1112 | MAN O WAR UNIT | Lee County, TX | Oil & Gas Property | Apr 2026 |
| 1113 | MAN STATE | Eddy County, NM | Oil & Gas Property | May 2026 |
| 1114 | MANACK | Westmoreland County, PA | Oil & Gas Property | Dec 2025 |
| 1115 | MANAHAN | Bradford County, PA | Gas Property | May 2026 |
| 1116 | MANAHAN | Freestone County, TX | Oil & Gas Property | May 2026 |
| 1117 | MANALAPAN LAND CO | Harlan County, KY | Oil & Gas Property | Dec 2018 |
| 1118 | MANASSAS STATE 55-4-22-21 | Reeves County, TX | Oil & Gas Property | May 2026 |
| 1119 | MANATT | Garvin County, OK | Oil & Gas Property | Apr 2014 |
| 1120 | MANCELONA | Antrim County, MI | Oil & Gas Property | May 2026 |
| 1121 | MANCELONA | Antrim County, MI | Gas Property | May 2026 |
| 1122 | MANCELONA WEST | Antrim County, MI | Gas Property | Dec 2020 |
| 1123 | MANCHACA UNIT | Karnes County, TX | Oil & Gas Property | May 2026 |
| 1124 | MANCHESTER | Grant County, OK | Oil & Gas Property | Apr 2026 |
| 1125 | MANCHESTER | Dunn County, ND | Oil & Gas Property | May 2026 |
| 1126 | MANCHIN, JOHN II | Marion County, WV | Oil & Gas Property | Dec 2021 |
| 1127 | MANCINI | San Juan County, NM | Gas Property | May 2026 |
| 1128 | MANCK | Rusk County, TX | Oil & Gas Property | May 2026 |
| 1129 | MANCORD 14-10 MBH-ULW | Dunn County, ND | Oil & Gas Property | May 2026 |
| 1130 | MANCORONEL | Pondera County, MT | Oil Property | Apr 2026 |
| 1131 | MANCUSO UNIT | Brazos County, TX | Oil & Gas Property | May 2026 |
| 1132 | MANDAL FEDERAL 41X-29 | McKenzie County, ND | Oil & Gas Property | May 2026 |
| 1133 | MANDALAY | Morris County, TX | Oil & Gas Property | May 2026 |
| 1134 | MANDALEK | Lipscomb County, TX | Oil & Gas Property | May 2026 |
| 1135 | MANDAN | McKenzie County, ND | Oil & Gas Property | May 2026 |
| 1136 | MANDAN 13-14H | Mountrail County, ND | Oil & Gas Property | Dec 2017 |
| 1137 | MANDAN NORTH 13-24H | Mountrail County, ND | Oil & Gas Property | May 2026 |
| 1138 | MANDAN USA 34-10H | McKenzie County, ND | Oil & Gas Property | May 2026 |
| 1139 | MANDAREE | Dunn County, ND | Oil & Gas Property | May 2026 |
| 1140 | MANDAREE | McKenzie County, ND | Oil & Gas Property | May 2026 |
| 1141 | MANDAREE WARRIOR 14-11H | McKenzie County, ND | Oil & Gas Property | May 2026 |
| 1142 | MANDARIN 5693 43-35B | Mountrail County, ND | Oil & Gas Property | May 2026 |
| 1143 | MANDARINA 29-0-48-1 | Loving County, TX | Oil & Gas Property | May 2026 |
| 1144 | MANDELBAUM FEE | Lea County, NM | Oil & Gas Property | Apr 2026 |
| 1145 | MANDELL | Kern County, CA | Oil & Gas Property | May 2026 |
| 1146 | MANDERSON | Big Horn County, WY | Oil & Gas Property | Jun 2026 |
| 1147 | MANDEVILLE, JOSEPH | Putnam County, WV | Oil & Gas Property | Dec 2021 |
| 1148 | MANDI | Upton County, TX | Oil & Gas Property | Jan 2023 |
| 1149 | MANDOLIN 149-94-02C-01H | McKenzie County, ND | Oil & Gas Property | May 2026 |
| 1150 | MANDRELL | Washita County, OK | Oil & Gas Property | Apr 2026 |
| 1151 | MANDRELL | Beckham County, OK | Oil & Gas Property | Apr 2026 |
| 1152 | MANDRELL BMR STATE COM | Lea County, NM | Oil & Gas Property | Jun 2026 |
| 1153 | MANDUJANO ALFON | Bexar County, TX | Oil & Gas Property | May 2026 |
| 1154 | MANDY GU 1 | Cherokee County, TX | Oil & Gas Property | Dec 2023 |
| 1155 | MANDY KAY 14-23H | Williams County, ND | Oil & Gas Property | May 2026 |
| 1156 | MANDY PEPPERIDGE 6-3 UNIT | Reeves County, TX | Oil & Gas Property | May 2026 |
| 1157 | MANER | Sherman County, TX | Oil & Gas Property | May 2026 |
| 1158 | MANESS 3 | Garfield County, CO | Oil & Gas Property | May 2026 |
| 1159 | MANESS G | Jefferson County, TX | Oil & Gas Property | May 2026 |
| 1160 | MANETH | Barton County, KS | Oil Property | Apr 2018 |
| 1161 | MANEVAL 296 | Tioga County, PA | Gas Property | May 2026 |
| 1162 | MANEY | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 1163 | MANFORD RANCH | Gonzales County, TX | Oil & Gas Property | Apr 2026 |
| 1164 | MANG | Musselshell County, MT | Oil Property | Apr 2026 |
| 1165 | MANGELS | Nowata County, OK | Gas Property | Apr 2026 |
| 1166 | MANGELS | Morton County, KS | Gas Property | Apr 2026 |
| 1167 | MANGELS | Morton County, KS | Gas Property | Mar 2026 |
| 1168 | MANGER UNIT 1H | Dewitt County, TX | Oil & Gas Property | May 2026 |
| 1169 | MANGHAM | Panola County, TX | Oil & Gas Property | May 2026 |
| 1170 | MANGHAM R.S | Panola County, TX | Oil & Gas Property | May 2026 |
| 1171 | MANGIONE 01 | Karnes County, TX | Oil & Gas Property | May 2026 |
| 1172 | MANGIONE-RIDLEY-HANDY SA A | Karnes County, TX | Oil & Gas Property | May 2026 |
| 1173 | MANGO BRM STATE | Lea County, NM | Oil & Gas Property | May 2026 |
| 1174 | MANGOLD | Archer County, TX | Oil & Gas Property | May 2026 |
| 1175 | MANGOLD KMA WATERFLOOD UNIT | Wichita County, TX | Oil & Gas Property | Apr 2026 |
| 1176 | MANGROVE | Gonzales County, TX | Oil & Gas Property | May 2026 |
| 1177 | MANGRUM | Okmulgee County, OK | Oil Property | Apr 2026 |
| 1178 | MANGUM | San Juan County, NM | Oil & Gas Property | May 2026 |
| 1179 | MANGUM 5493 44-7 T3 | Mountrail County, ND | Oil & Gas Property | May 2026 |
| 1180 | MANGUN 22-15-5 | Carroll County, OH | Oil & Gas Property | Mar 2026 |
| 1181 | MANGUS | Columbiana County, OH | Oil & Gas Property | Mar 2026 |
| 1182 | MANHATTAN 183 | Reeves County, TX | Oil & Gas Property | May 2026 |
| 1183 | MANHATTAN FEDERAL 5792 11-2 | Mountrail County, ND | Oil & Gas Property | May 2026 |
| 1184 | MANHATTAN LAND | Plaquemines Parish, LA | Oil & Gas Property | Oct 2023 |
| 1185 | MANHATTAN STATE UNIT | Reeves County, TX | Oil & Gas Property | May 2026 |
| 1186 | MANIGAULT | Campbell County, WY | Gas Property | Jun 2015 |
| 1187 | MANIGAULT | Campbell County, WY | Gas Property | Jun 2015 |
| 1188 | MANILA 8408 19 30 31 STATE COM | Lea County, NM | Oil & Gas Property | Jun 2026 |
| 1189 | MANION-JAGGE | Bexar County, TX | Oil & Gas Property | Apr 2026 |
| 1190 | MANIS 1H | Johnson County, TX | Oil & Gas Property | Feb 2026 |
| 1191 | MANISTEE | Manistee County, MI | Oil & Gas Property | May 2026 |
| 1192 | MANITOU 2 | Winkler County, TX | Oil & Gas Property | May 2026 |
| 1193 | MANITOU STATE 36 1-H | Mountrail County, ND | Oil & Gas Property | May 2026 |
| 1194 | MANKA | Karnes County, TX | Oil & Gas Property | May 2026 |
| 1195 | MANKA | Seward County, KS | Oil & Gas Property | Mar 1991 |
| 1196 | MANKE | Rice County, KS | Oil Property | Apr 2026 |
| 1197 | MANKIN | Campbell County, WY | Gas Property | Jan 2008 |
| 1198 | MANKIN | Campbell County, WY | Gas Property | Aug 2012 |
| 1199 | MANKIN | Campbell County, WY | Oil & Gas Property | Jun 2026 |
| 1200 | MANKIN | Campbell County, WY | Oil & Gas Property | May 2026 |