| 301 | LEAL PEDRO | Webb County, TX | Oil & Gas Property | Dec 2018 |
| 302 | LECHENGER | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 303 | LEMMOND | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 304 | LEWIS M | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 305 | LEYENDECKER | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 306 | LEYENDECKER ET AL | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 307 | LINCOLN | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 308 | LINDSAY RANCH UNIT | Webb County, TX | Gas Property | Jan 2025 |
| 309 | LINK RANCH | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 310 | LM 1870 | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 311 | LOD MOGLIA | Webb County, TX | Oil & Gas Property | Apr 2024 |
| 312 | LOMA BLANCA | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 313 | LONG A. G. HEIRS | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 314 | LONG ARCHIE | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 315 | LONG J | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 316 | LONG J.E | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 317 | LOPEZ | Webb County, TX | Oil Property | Jan 2025 |
| 318 | LOS OJUELOS MINERAL TRUST | Webb County, TX | Oil & Gas Property | Dec 2009 |
| 319 | LUNA PSA 10 | Webb County, TX | Gas Property | Jan 2025 |
| 320 | LUNDELL | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 321 | M. G. LILLIE 1 | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 322 | M. L. MARTIN STATE A2803 1 | Webb County, TX | Gas Property | Jan 2025 |
| 323 | M.G. LILLIE 1616 GU | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 324 | M.L.E.I. BRUNI MIN. TR | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 325 | M.M.A. CATTLE CO | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 326 | MACMAHON | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 327 | MALAKOFF | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 328 | MALTSBERGER | Webb County, TX | Gas Property | Feb 2025 |
| 329 | MANN TRUST - STATE | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 330 | MANRY STATE | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 331 | MARRS MCLEAN | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 332 | MARSHALL S.G | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 333 | MARSHALL S.G. B 1 | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 334 | MARSHALL-STATE | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 335 | MARTIN | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 336 | MARTIN | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 337 | MARTIN | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 338 | MARTIN J.C. III | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 339 | MARTIN S | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 340 | MARTIN STATE | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 341 | MARTIN-VOLZ | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 342 | MARTIN-VOLZ | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 343 | MARTIN-ZUCK GU 1H | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 344 | MARTINEZ | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 345 | MARTINEZ-BARRERA G | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 346 | MATA-THOMAS GU | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 347 | MATRIX CASPIAN 101H | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 348 | MATRIX CERRITO UNIT | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 349 | MATRIX LAND CO | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 350 | MAYERS | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 351 | MAYERS GAS UNIT | Webb County, TX | Oil & Gas Property | Sep 2024 |
| 352 | MCKENDRICK | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 353 | MCKENDRICK | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 354 | MCKENDRICK | Webb County, TX | Oil & Gas Property | Dec 2024 |
| 355 | MCLEAN, MARRS | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 356 | MEADOR | Webb County, TX | Oil & Gas Property | Apr 2024 |
| 357 | MEADOR 1451 | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 358 | MEADOR, BEASLEY | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 359 | MEADOR-MONNICH GU 1H | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 360 | MEEK RANCH | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 361 | MEITZEN 1 | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 362 | MIDDLETON | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 363 | MILAGROS | Webb County, TX | Gas Property | Jan 2025 |
| 364 | MOGLIA | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 365 | MONARCH-BRUNI | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 366 | MOOS H | Webb County, TX | Oil & Gas Property | Jan 2021 |
| 367 | MORENO | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 368 | MORENO ISIDRO ET AL | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 369 | MORGAN | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 370 | MORGENSTERN-FASKEN STATE GU | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 371 | NEEDMORE | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 372 | NEEDMORE | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 373 | NEEDMORE-SCIBIENSKI | Webb County, TX | Gas Property | Jan 2025 |
| 374 | NEEL | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 375 | NIDO RANCH | Webb County, TX | Gas Property | Feb 2025 |
| 376 | NORFLEET | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 377 | NORTHEAST COMPLEX | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 378 | NORVEHC | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 379 | OCHO | Webb County, TX | Gas Property | Jan 2025 |
| 380 | OCHO 1 | Webb County, TX | Gas Property | Jan 2025 |
| 381 | OCHO MDL | Webb County, TX | Gas Property | Jan 2025 |
| 382 | OHERN FIELD UNIT | Webb County, TX | Oil & Gas Property | Feb 1998 |
| 383 | OLMITOS | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 384 | ORTIZ RANCH | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 385 | OTTO 1H | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 386 | OWEN | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 387 | OWEN | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 388 | OWEN BRISCOE | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 389 | OWEN-BRISCOE STATE-WCSL GU B 2H | Webb County, TX | Gas Property | Jan 2025 |
| 390 | OWEN-STATE 1 | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 391 | OWENS | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 392 | OWENS E. ARLEIGH | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 393 | PALAFOX | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 394 | PALAFOX | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 395 | PALAFOX | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 396 | PALAFOX EXPLOR | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 397 | PALAFOX EXPLORAT | Webb County, TX | Oil & Gas Property | Nov 2024 |
| 398 | PALAFOX EXPLORATION CO | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 399 | PALAFOX STATE | Webb County, TX | Gas Property | Jan 2025 |
| 400 | PALAFOX-FASKEN-ST. A | Webb County, TX | Oil & Gas Property | Jan 2025 |