| 301 | LASSEY | Richland County, MT | Oil & Gas Property | Sep 1992 |
| 302 | LAWSON | Richland County, MT | Oil & Gas Property | Jun 1987 |
| 303 | LAZY D | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 304 | LEAH 29-32 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 305 | LEGHORN | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 306 | LEGHORN FLORENCE 33-14H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 307 | LEGHORN HAZARD 32-15-HID3 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 308 | LEGHORN MELODEE 31-16 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 309 | LEO 2-18H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 310 | LESUEUR | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 311 | LEVENGOOD | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 312 | LEWIS (#1) | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 313 | LEWIS 1-13H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 314 | LINNEA | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 315 | LISA 22-23H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 316 | LOKI 2658 12-25H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 317 | LONE BUTTE PATRICIA 24-25-1H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 318 | LONE TREE | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 319 | LONE TREE | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 320 | LONE TREE | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 321 | LONE TREE-MCMILLEN 12-15H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 322 | LONESTAR 12-13 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 323 | LORENZ 14X-16 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 324 | LUCILLE | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 325 | LYLE PEDERSON 2-17H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 326 | LYSEMOSE 33-34 1H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 327 | MABEL 1-14H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 328 | MAHLEN 24-32H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 329 | MALSAM | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 330 | MARGARET | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 331 | MARKER ( | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 332 | MARLA | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 333 | MARLIN 14-8H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 334 | MARLYS 1-34H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 335 | MARTIN 1-2 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 336 | MARVIN 14B-26 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 337 | MARVIN 2-11-14 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 338 | MATADOR | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 339 | MATADOR FEDERAL 2658 43-7H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 340 | MATTHEW 1-31H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 341 | MAYSON PHOENIX 17-20 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 342 | MCGINNIS | Richland County, MT | Oil & Gas Property | Oct 2024 |
| 343 | MCHENRY | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 344 | MCVAY | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 345 | MELDAHL | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 346 | MELVIN | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 347 | MERCER | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 348 | MERRILL | Richland County, MT | Oil & Gas Property | Dec 2024 |
| 349 | MICHAEL 1-27H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 350 | MILLER | Richland County, MT | Oil & Gas Property | Mar 2015 |
| 351 | MONDALIN | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 352 | MOORE (23-24 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 353 | MOOSE FALLS 29-31H | Richland County, MT | Oil Property | Jan 2025 |
| 354 | MORASKO 41-25H 43 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 355 | MOSQUITO | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 356 | MOTT 1-16H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 357 | MULHOLLAND FEDERAL 1-32H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 358 | MULLIN | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 359 | MULLIN 21-24 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 360 | NANCY LEE 13X-13 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 361 | NATASHA | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 362 | NATASHA VINNIE 2-2-HLID3 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 363 | NATASHA-OBERGFELL 11-14-H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 364 | NATE 6-7-18-19 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 365 | NEVINS | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 366 | NEVINS | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 367 | NOHLY | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 368 | NORBY | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 369 | NORGAARD 1 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 370 | OBERGFELL | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 371 | OBRIEN BROTHERS (11X-18 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 372 | OLIVE-ARLENE 27-3-HLID3 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 373 | OLIVE-LESUEUR 27-4H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 374 | OLSON | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 375 | OLSON BOTTOM | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 376 | OSBORN 1-34H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 377 | OSCAR | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 378 | OTIS 2658 43-23H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 379 | PALMER 24-21 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 380 | PARSONS FEDERAL 1-6H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 381 | PATRICIA 41X-15 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 382 | PEABODY | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 383 | PEABODY MIN | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 384 | PEABODY-BAHLS 2-16H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 385 | PEABODY-ODENBACH 2-14H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 386 | PEABODY-STEVE 35-3-HLID3 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 387 | PEABODY-WILLIAMS 26-16H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 388 | PEANUT | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 389 | PEANUT EAST | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 390 | PEANUT-ANNIE 16-3-HLID3 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 391 | PEDERSON | Richland County, MT | Oil & Gas Property | Sep 2018 |
| 392 | PENELOPE | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 393 | PENELOPE-DIANE 30-16H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 394 | PENELOPE-FIRST CHURCH 24-2H | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 395 | PETERSEN | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 396 | PETERSEN 41X-28 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 397 | PETERSON | Richland County, MT | Oil & Gas Property | Jun 2022 |
| 398 | PHILLIPS 11X-23 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 399 | PIANO MAN 7-6-31 | Richland County, MT | Oil & Gas Property | Jan 2025 |
| 400 | PLEASANT VALLEY | Richland County, MT | Oil & Gas Property | Jan 2025 |