| 1201 | LODGE CREEK | Blaine County, MT | Gas Property | Sep 2002 |
| 1202 | LOGAN ROY 7-6-1H | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 1203 | LOKI 2658 12-25H | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 1204 | LONE TREE | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 1205 | LONE-TREE | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 1206 | LONE-TREE | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 1207 | LONESOME | Toole County, MT | Oil Property | Jun 2026 |
| 1208 | LONESTAR 12-13 | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 1209 | LONEY | Blaine County, MT | Gas Property | Mar 2009 |
| 1210 | LONG | Hill County, MT | Gas Property | Jun 2026 |
| 1211 | LONG COULEE FED | Roosevelt County, MT | Oil & Gas Property | Jun 2026 |
| 1212 | LONG CREEK | Roosevelt County, MT | Oil & Gas Property | May 2026 |
| 1213 | LONG ESTATE | Hill County, MT | Gas Property | Jun 2026 |
| 1214 | LORENSEN | Toole County, MT | Oil Property | Dec 2018 |
| 1215 | LORENSON | Toole County, MT | Oil Property | Apr 2026 |
| 1216 | LORENZ 14X-16 | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 1217 | LORENZEN | Toole County, MT | Oil Property | Jun 2026 |
| 1218 | LORING | Phillips County, MT | Gas Property | Jun 2026 |
| 1219 | LOTT 2 | Big Horn County, MT | Gas Property | Aug 2019 |
| 1220 | LOUCKS | Sheridan County, MT | Oil & Gas Property | Oct 2018 |
| 1221 | LOUTTIT-M | Teton County, MT | Oil Property | Jun 2026 |
| 1222 | LOWENSTEIN 28-58 14B-23-2H | Roosevelt County, MT | Oil & Gas Property | Jun 2026 |
| 1223 | LUCERO 4-33-28 | Roosevelt County, MT | Oil & Gas Property | Jun 2026 |
| 1224 | LUCILLE | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 1225 | LUCKE | Hill County, MT | Gas Property | Jun 2026 |
| 1226 | LUFT | Roosevelt County, MT | Oil & Gas Property | Jun 2026 |
| 1227 | LUKE SWEETMAN 2 | Roosevelt County, MT | Oil & Gas Property | Jun 2026 |
| 1228 | LUKENS | Glacier County, MT | Oil Property | Jan 1995 |
| 1229 | LUND (1-5 | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 1230 | LUND RANCH | Sheridan County, MT | Oil & Gas Property | Mar 2026 |
| 1231 | LUNDGREN | Glacier County, MT | Oil & Gas Property | Jun 2026 |
| 1232 | LUNDIN | Toole County, MT | Gas Property | Jun 2026 |
| 1233 | LUTHER C | Toole County, MT | Gas Property | Jun 2026 |
| 1234 | LUTTS | Fallon County, MT | Oil & Gas Property | Oct 2009 |
| 1235 | LUTZ | Toole County, MT | Gas Property | May 2026 |
| 1236 | LUX 2 | Blaine County, MT | Gas Property | Jun 2026 |
| 1237 | LYBECK | Liberty County, MT | Gas Property | Feb 2026 |
| 1238 | LYLE PEDERSON 2-17H | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 1239 | M M NEUMAN | Toole County, MT | Oil Property | Jun 2026 |
| 1240 | M MCCORMICK | Toole County, MT | Oil Property | Jun 2026 |
| 1241 | M TETERUD | Glacier County, MT | Oil & Gas Property | Sep 2016 |
| 1242 | M&M T 2958 13-26H | Roosevelt County, MT | Oil & Gas Property | Jun 2026 |
| 1243 | M. EGGEN | Sheridan County, MT | Oil & Gas Property | Mar 2013 |
| 1244 | M. SWEENEY | Toole County, MT | Oil Property | Nov 2023 |
| 1245 | MA 2758 41-11B | Roosevelt County, MT | Oil & Gas Property | Jun 2026 |
| 1246 | MABEL 1-14H | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 1247 | MACDONALD | Roosevelt County, MT | Oil Property | Nov 2024 |
| 1248 | MACHALE-SCHILTZ | Toole County, MT | Gas Property | Apr 2026 |
| 1249 | MACK | Park County, WY | Oil Property | Jul 2026 |
| 1250 | MAGDA | Blaine County, MT | Gas Property | Sep 2009 |
| 1251 | MAHLEN 24-32H | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 1252 | MAHONEY | Liberty County, MT | Oil & Gas Property | May 2026 |
| 1253 | MAJERUS | Hill County, MT | Gas Property | Jun 2026 |
| 1254 | MALEY | Toole County, MT | Oil Property | Jun 2026 |
| 1255 | MALONE | Toole County, MT | Gas Property | Jun 2015 |
| 1256 | MALONE | Toole County, MT | Gas Property | Jun 2026 |
| 1257 | MALONEY | Toole County, MT | Oil & Gas Property | Apr 2026 |
| 1258 | MALSAM | Blaine County, MT | Gas Property | Jun 2026 |
| 1259 | MALSAM | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 1260 | MALTBY | Glacier County, MT | Oil Property | Sep 2020 |
| 1261 | MANCORONEL | Pondera County, MT | Oil Property | Jun 2026 |
| 1262 | MANG | Musselshell County, MT | Oil Property | Jun 2026 |
| 1263 | MANN | Roosevelt County, MT | Oil & Gas Property | Jun 2026 |
| 1264 | MANN | Big Horn County, MT | Oil Property | May 2026 |
| 1265 | MANUEL 1 | Hill County, MT | Gas Property | Mar 2011 |
| 1266 | MANUSH 1-12H | Roosevelt County, MT | Oil & Gas Property | Jun 2026 |
| 1267 | MARGARET | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 1268 | MARIE KRUGER | Glacier County, MT | Oil & Gas Property | Jun 2026 |
| 1269 | MARILYN 2758 42-11H | Roosevelt County, MT | Oil & Gas Property | Jun 2026 |
| 1270 | MARKER ( | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 1271 | MARLA | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 1272 | MARMONT | Toole County, MT | Gas Property | Apr 2026 |
| 1273 | MARRA | Hill County, MT | Gas Property | Jun 1996 |
| 1274 | MARSH | Stillwater County, MT | Gas Property | Jan 1991 |
| 1275 | MARSH | Blaine County, MT | Gas Property | Jun 2026 |
| 1276 | MARTIN | Pondera County, MT | Oil Property | Dec 1999 |
| 1277 | MARTIN | Toole County, MT | Oil Property | Jun 2026 |
| 1278 | MARTIN | Teton County, MT | Oil Property | Jun 2026 |
| 1279 | MARTIN 1-2 | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 1280 | MARVIN 14B-26 | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 1281 | MARVIN 2-11-14 | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 1282 | MARY REED | Big Horn County, MT | Oil Property | Jun 2026 |
| 1283 | MASON | Roosevelt County, MT | Oil Property | Mar 1994 |
| 1284 | MATADOR | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 1285 | MATADOR FEDERAL 2658 43-7H | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 1286 | MATHER | Glacier County, MT | Gas Property | Jun 2026 |
| 1287 | MATTHEW 1-31H | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 1288 | MAUGHAN | Toole County, MT | Oil Property | Oct 1992 |
| 1289 | MAVENCAMP | Phillips County, MT | Gas Property | Jun 2026 |
| 1290 | MAYSON PHOENIX 17-20 | Richland County, MT | Oil & Gas Property | Jun 2026 |
| 1291 | MCALPINE | Glacier County, MT | Oil Property | Jun 2026 |
| 1292 | MCALPINE | Toole County, MT | Gas Property | Jun 2026 |
| 1293 | MCCABE | Roosevelt County, MT | Oil & Gas Property | Jun 2026 |
| 1294 | MCCARTER | Toole County, MT | Gas Property | Jun 2026 |
| 1295 | MCCORMICK | Toole County, MT | Oil Property | Nov 2001 |
| 1296 | MCCRACKEN | Pondera County, MT | Gas Property | Oct 2024 |
| 1297 | MCCRACKEN 2758 | Roosevelt County, MT | Oil & Gas Property | Jun 2026 |
| 1298 | MCCUTCHEON | Toole County, MT | Oil & Gas Property | Apr 2026 |
| 1299 | MCCUTCHIN-WILLIAMS 2 | Powder River County, MT | Oil & Gas Property | Jun 2026 |
| 1300 | MCDONALD CREEK | Petroleum County, MT | Oil Property | Mar 2004 |