| 401 | PALAFOX EXPLORATION CO | Webb County, TX | Gas Property | Dec 2025 |
| 402 | PALAFOX EXPLORATION CO | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 403 | PALAFOX STATE | Webb County, TX | Gas Property | Jan 2026 |
| 404 | PALAFOX-FASKEN-ST. A | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 405 | PALAFOX-MARTIN-ZUCK GU 1H | Webb County, TX | Gas Property | Jan 2026 |
| 406 | PENA H | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 407 | PENA-CUEVA GU | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 408 | PEREZ | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 409 | PESCADITO STATE | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 410 | PGE BROWNE | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 411 | PGE DOS | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 412 | PGE DOS | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 413 | PGE DOS A UNIT A1H | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 414 | PGE DOS D UNIT CC 1H | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 415 | PILONCILLO | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 416 | PILONCILLO | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 417 | PILONCILLO | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 418 | PILONCILLO F | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 419 | PINATA | Webb County, TX | Gas Property | Jan 2026 |
| 420 | PINATA GAS UNIT 1 | Webb County, TX | Gas Property | Jan 2026 |
| 421 | PIPER 10 | Webb County, TX | Gas Property | Jan 2026 |
| 422 | PIPER STATE | Webb County, TX | Gas Property | Jan 2026 |
| 423 | PREVOST | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 424 | PRIETO SAN JUAN - STATE | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 425 | PUIG | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 426 | PUIG | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 427 | PUIG BROS. CORP. - STATE (EF) 1 | Webb County, TX | Gas Property | Jan 2026 |
| 428 | PUIG GAS UNIT NO | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 429 | PUIG L | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 430 | PUIG, A.E./STATE 18 | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 431 | QUICK RANCH B | Webb County, TX | Gas Property | Jan 2026 |
| 432 | QUICK-LA SANTA CRUZ PSA D 1H | Webb County, TX | Gas Property | Jan 2026 |
| 433 | RACHAL | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 434 | RAMIREZ | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 435 | RAMIREZ C.H. MINERALS LTD | Webb County, TX | Oil & Gas Property | Dec 2025 |
| 436 | RAMIREZ G. & F. GAS UNIT | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 437 | RAMIREZ M | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 438 | RAMIREZ-MALAKOFF | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 439 | RANCHO BLANCO | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 440 | REESE | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 441 | RETAMA RANCH | Webb County, TX | Gas Property | Jan 2026 |
| 442 | RETAMA RANCH | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 443 | RETTIG | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 444 | REUTHINGER | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 445 | RICHMOND-GARCIA | Webb County, TX | Oil & Gas Property | Dec 2023 |
| 446 | RICHTER UNIT | Webb County, TX | Oil & Gas Property | Dec 2006 |
| 447 | RIO BRAVO | Webb County, TX | Gas Property | Jan 2026 |
| 448 | RIO BRAVO STATE EF | Webb County, TX | Gas Property | Jan 2026 |
| 449 | ROSA - BFMT EAST | Webb County, TX | Gas Property | Jan 2026 |
| 450 | ROSA BENAVIDES 1450 | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 451 | ROSA BENAVIDES 1450 EF 4H | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 452 | ROSA V. BENAVIDES | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 453 | ROSA V. BENAVIDES | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 454 | ROSA V. BENAVIDES | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 455 | ROSA V. DE BENAVIDES 1450 | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 456 | ROSARIO CATTLE CO | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 457 | ROSCHER W.C | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 458 | ROSCHER-HIRSCH G | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 459 | ROSEBERRY | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 460 | ROTTERSMAN | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 461 | RUBIO | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 462 | RUIZ J. M | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 463 | RUNNING W | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 464 | RUSSELL-WINCH | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 465 | RYAN | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 466 | S. D. MARTINEZ GU 1 | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 467 | SALDIVAR | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 468 | SALDIVAR RAYMUNDO T | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 469 | SALINAS, JU | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 470 | SAM ROMAN A | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 471 | SAN AMBROSIA | Webb County, TX | Oil & Gas Property | Dec 2025 |
| 472 | SAN AMBROSIA | Webb County, TX | Oil & Gas Property | Dec 2025 |
| 473 | SAN AMBROSIA F ( | Webb County, TX | Oil & Gas Property | Dec 2025 |
| 474 | SAN AMBROSIA F (SA4 | Webb County, TX | Oil & Gas Property | Dec 2025 |
| 475 | SAN ROMAN | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 476 | SAN ROMAN 1508 | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 477 | SAN ROMAN 1508 10 | Webb County, TX | Gas Property | Jan 2026 |
| 478 | SANCHEZ, DAN | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 479 | SANCHEZ-HARTE | Webb County, TX | Gas Property | Jul 2025 |
| 480 | SANTA CRUZ-LA MUELA G PSA | Webb County, TX | Gas Property | Jan 2026 |
| 481 | SANTA CRUZ-SSS H UNIT | Webb County, TX | Gas Property | Jan 2026 |
| 482 | SANTA ELENA | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 483 | SANTA ELENA | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 484 | SANTOS | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 485 | SAUNDERS | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 486 | SAUNDERS-EISENH | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 487 | SCHWARZ | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 488 | SCHWARZ | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 489 | SCIBIENSKI | Webb County, TX | Gas Property | Jan 2026 |
| 490 | SLAUGHTER | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 491 | SLAUGHTER, LILIA BRUNI | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 492 | SOB MIN FEE | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 493 | SOUTH CALLAGHAN RANCH | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 494 | SOUTH CALLAGHAN RANCH | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 495 | SOUTH MARSHALL ST | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 496 | SPOHN RANCH | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 497 | SPOHN RANCH 2 | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 498 | SRS UNIT | Webb County, TX | Gas Property | Jan 2026 |
| 499 | SSS-BURKHOLDER | Webb County, TX | Oil & Gas Property | Jan 2026 |
| 500 | STAGGS | Webb County, TX | Oil & Gas Property | Jan 2026 |