| 501 | ABRAMS W. H | Brazoria County, TX | Oil & Gas Property | May 2026 |
| 502 | ABRAXAS | Martin County, TX | Oil & Gas Property | May 2026 |
| 503 | ABSHIER MABEL | Ward County, TX | Oil & Gas Property | Jan 2026 |
| 504 | ABSHIRE WILLIAM | Johnson County, TX | Gas Property | May 2026 |
| 505 | ABSHIRE, A J 6 | Pike County, KY | Gas Property | Dec 2024 |
| 506 | ABSHIRE-SELECTED LANDS UNIT | Brazos County, TX | Oil & Gas Property | May 2026 |
| 507 | ABSOLUTE POWER UNIT 1 | Jasper County, TX | Oil & Gas Property | May 2026 |
| 508 | ABSTON | Foard County, TX | Gas Property | Apr 2026 |
| 509 | ABSTON | Tuscaloosa County, AL | Gas Property | May 2026 |
| 510 | ABSTON UNIT 10 | Choctaw County, AL | Oil & Gas Property | Jul 2008 |
| 511 | ABU GARCIA 28-16 | Martin County, TX | Oil & Gas Property | May 2026 |
| 512 | ABUKHURMA ADEL | Bexar County, TX | Oil Property | Apr 2026 |
| 513 | ABUNDANCE AVZ | Eddy County, NM | Oil & Gas Property | May 2026 |
| 514 | AC MCLAUGHLIN | Rio Blanco County, CO | Oil & Gas Property | May 2026 |
| 515 | AC RANCH | Sheridan County, WY | Gas Property | Jun 2015 |
| 516 | AC RANCH | Sheridan County, WY | Gas Property | Jun 2015 |
| 517 | AC WALTERS | Grady County, OK | Oil & Gas Property | Apr 2026 |
| 518 | AC WISE | Butler County, PA | Oil Property | Dec 2025 |
| 519 | AC360 2H | Tarrant County, TX | Gas Property | May 2026 |
| 520 | ACAA | Allegheny County, PA | Gas Property | May 2026 |
| 521 | ACACIA 17 | Weld County, CO | Oil & Gas Property | May 2026 |
| 522 | ACACIA COUNTRY CLUB | Cuyahoga County, OH | Oil & Gas Property | Dec 2025 |
| 523 | ACACIA CS FED | Campbell County, WY | Gas Property | Aug 2018 |
| 524 | ACACIA UNIT 1H | Fayette County, TX | Oil & Gas Property | May 2026 |
| 525 | ACADIA | Gonzales County, TX | Oil & Gas Property | May 2026 |
| 526 | ACADIA 13-12-12-6 | Canadian County, OK | Oil & Gas Property | Apr 2026 |
| 527 | ACADIA 148-95-02A-11H TF | Dunn County, ND | Oil & Gas Property | May 2026 |
| 528 | ACADIA 1H | Washington County, TX | Oil & Gas Property | May 2026 |
| 529 | ACADIA 65 | Fisher County, TX | Oil & Gas Property | May 2026 |
| 530 | ACADIA B | Acadia Parish, LA | Oil Property | Dec 2024 |
| 531 | ACADIA FEDERAL COM | Eddy County, NM | Oil & Gas Property | May 2026 |
| 532 | ACADIAN 0806 | Grady County, OK | Oil & Gas Property | Apr 2026 |
| 533 | ACCAWINNA | Duchesne County, UT | Oil & Gas Property | May 2026 |
| 534 | ACCAWINNA UT 2-3 3-2-34-27 | Duchesne County, UT | Oil & Gas Property | May 2026 |
| 535 | ACCETTOLO, PATRICIA & LOUIS | Marshall County, WV | Oil & Gas Property | Dec 2021 |
| 536 | ACDC | Atascosa County, TX | Oil & Gas Property | May 2026 |
| 537 | ACE 149-92-31D-30H | Dunn County, ND | Oil & Gas Property | May 2026 |
| 538 | ACE E CDZ HR 8H | Harrison County, OH | Oil & Gas Property | Mar 2026 |
| 539 | ACE IN THE HOLE | Reeves County, TX | Oil & Gas Property | May 2026 |
| 540 | ACE L06H | Reeves County, TX | Oil & Gas Property | May 2026 |
| 541 | ACE STERN VEGAS FEE 22 21 | Eddy County, NM | Oil & Gas Property | May 2026 |
| 542 | ACE UNIT | Denton County, TX | Oil & Gas Property | May 2026 |
| 543 | ACE UNIT | Moffat County, CO | Oil & Gas Property | Apr 2026 |
| 544 | ACE W CDZ HR | Harrison County, OH | Oil & Gas Property | Mar 2026 |
| 545 | ACEE PURE MILK CO | Logan County, AR | Gas Property | Jun 2024 |
| 546 | ACELA | Zapata County, TX | Gas Property | May 2026 |
| 547 | ACERNI | Armstrong County, PA | Oil & Gas Property | Dec 2025 |
| 548 | ACERNI | Armstrong County, PA | Gas Property | Dec 2025 |
| 549 | ACES HIGH | Kingfisher County, OK | Oil & Gas Property | Apr 2026 |
| 550 | ACEVEDO | Starr County, TX | Oil & Gas Property | May 2026 |
| 551 | ACEVEDO-HAERING | Webb County, TX | Oil & Gas Property | May 2026 |
| 552 | ACHATZ | Barton County, KS | Oil Property | Mar 2026 |
| 553 | ACHEN FREY DM | Eddy County, NM | Oil & Gas Property | Dec 2016 |
| 554 | ACHENBACH | Barber County, KS | Oil & Gas Property | Mar 2026 |
| 555 | ACHENBACH | Woods County, OK | Oil & Gas Property | May 2026 |
| 556 | ACHENBACH | Barber County, KS | Oil & Gas Property | Mar 2026 |
| 557 | ACHENBACH | Barber County, KS | Oil & Gas Property | Mar 2026 |
| 558 | ACHERON | Shelby County, TX | Oil & Gas Property | May 2026 |
| 559 | ACHESON | Graham County, KS | Oil Property | Mar 2026 |
| 560 | ACHILLES 5301 | McKenzie County, ND | Oil & Gas Property | May 2026 |
| 561 | ACHILLES 7-24 UNIT 1 | Martin County, TX | Oil & Gas Property | May 2026 |
| 562 | ACHTERBERG ANTON | Guadalupe County, TX | Oil & Gas Property | Apr 2026 |
| 563 | ACHZIGER | Weld County, CO | Oil & Gas Property | Apr 2020 |
| 564 | ACIN ALLEN&PRYOR | Boone County, WV | Gas Property | Dec 2021 |
| 565 | ACIN LL | Kanawha County, WV | Oil & Gas Property | Dec 2021 |
| 566 | ACIN LLC | Letcher County, KY | Oil & Gas Property | Nov 2023 |
| 567 | ACIN LLC ALLEN&PRYOR | Boone County, WV | Oil & Gas Property | Dec 2021 |
| 568 | ACIN, LLC 16 | Letcher County, KY | Gas Property | Dec 2019 |
| 569 | ACKBAR 30 31 | Lea County, NM | Oil & Gas Property | Jan 2025 |
| 570 | ACKER | Gray County, TX | Oil & Gas Property | May 2026 |
| 571 | ACKER | Fayette County, TX | Oil & Gas Property | May 2026 |
| 572 | ACKER | Pittsburg County, OK | Gas Property | Apr 2026 |
| 573 | ACKER | Rusk County, TX | Oil & Gas Property | May 2026 |
| 574 | ACKER | Manistee County, MI | Oil & Gas Property | Mar 2026 |
| 575 | ACKER | Campbell County, WY | Gas Property | Apr 2016 |
| 576 | ACKER | Hocking County, OH | Oil & Gas Property | Dec 2022 |
| 577 | ACKER | Wayne County, OH | Oil & Gas Property | Dec 2017 |
| 578 | ACKER #12 | Tuscaloosa County, AL | Gas Property | May 2026 |
| 579 | ACKER C | Susquehanna County, PA | Gas Property | May 2026 |
| 580 | ACKERLY | Martin County, TX | Oil & Gas Property | May 2026 |
| 581 | ACKERLY DAVENPORT 16A | Martin County, TX | Oil & Gas Property | May 2026 |
| 582 | ACKERLY/DEAN/FIELD UNIT | Dawson County, TX | Oil & Gas Property | May 2026 |
| 583 | ACKERMAN | Allegany County, NY | Oil & Gas Property | Dec 2025 |
| 584 | ACKERMAN | Stafford County, KS | Gas Property | Mar 2026 |
| 585 | ACKERMAN | Monroe County, OH | Oil & Gas Property | Dec 2025 |
| 586 | ACKERMAN | Monroe County, OH | Oil & Gas Property | Dec 2025 |
| 587 | ACKERMAN | Gray County, TX | Gas Property | May 2026 |
| 588 | ACKERMAN | Grant County, KS | Gas Property | Mar 2026 |
| 589 | ACKERMAN | Weston County, WY | Oil & Gas Property | Jun 2026 |
| 590 | ACKERS | Stephens County, TX | Oil & Gas Property | May 2026 |
| 591 | ACKERS | Shackelford County, TX | Oil & Gas Property | May 2026 |
| 592 | ACKERS (MORRIS SAND) UNIT | Shackelford County, TX | Oil & Gas Property | Jan 2025 |
| 593 | ACKERS 80 | Callahan County, TX | Oil & Gas Property | May 2026 |
| 594 | ACKERS-STATE (CADDO) UNIT | Stephens County, TX | Oil & Gas Property | May 2000 |
| 595 | ACKLEY | Cattaraugus County, NY | Gas Property | Dec 2025 |
| 596 | ACKLINS 6092 12-18H | Burke County, ND | Oil & Gas Property | May 2026 |
| 597 | ACL UNIT | Martin County, TX | Oil & Gas Property | May 2026 |
| 598 | ACLA | Bradford County, PA | Gas Property | May 2026 |
| 599 | ACLCO UNIT | Nacogdoches County, TX | Gas Property | May 2026 |
| 600 | ACLETO CREEK WATERFLOOD UNIT | Wilson County, TX | Oil & Gas Property | Apr 2026 |