| 601 | MADIGAN FARMS UNIT A 1H | Bradford County, PA | Gas Property | Jun 2025 |
| 602 | MADINE | Jackson County, OK | Oil Property | Oct 2003 |
| 603 | MADISON | Forest County, PA | Oil & Gas Property | Dec 2024 |
| 604 | MADISON | Martin County, TX | Oil & Gas Property | May 2025 |
| 605 | MADISON | Carter County, OK | Oil & Gas Property | May 2025 |
| 606 | MADISON | Upton County, TX | Oil & Gas Property | May 2022 |
| 607 | MADISON | Martin County, TX | Oil & Gas Property | Jun 2024 |
| 608 | MADISON | Midland County, TX | Oil & Gas Property | Jan 2025 |
| 609 | MADISON | Edmonson County, KY | Oil & Gas Property | Dec 2023 |
| 610 | MADISON | Carter County, OK | Oil & Gas Property | May 2025 |
| 611 | MADISON | Martin County, TX | Oil & Gas Property | May 2025 |
| 612 | MADISON | Logan County, OK | Oil & Gas Property | Jun 2007 |
| 613 | MADISON | Martin County, TX | Oil & Gas Property | May 2025 |
| 614 | MADISON | Noble County, OK | Oil & Gas Property | May 2025 |
| 615 | MADISON | Williams County, ND | Oil & Gas Property | Jun 2025 |
| 616 | MADISON | Reagan County, TX | Oil & Gas Property | May 2025 |
| 617 | MADISON | Concordia Parish, LA | Oil & Gas Property | Dec 2024 |
| 618 | MADISON | Hughes County, OK | Oil & Gas Property | May 2025 |
| 619 | MADISON | Martin County, TX | Oil & Gas Property | May 2025 |
| 620 | MADISON | Brown County, TX | Oil & Gas Property | May 2025 |
| 621 | MADISON (ALLOCATION) | Madison County, TX | Oil & Gas Property | May 2025 |
| 622 | MADISON 04 | Howard County, TX | Oil & Gas Property | May 2025 |
| 623 | MADISON 1-21 | Grady County, OK | Oil & Gas Property | May 2025 |
| 624 | MADISON 2-11 | Reeves County, TX | Oil & Gas Property | May 2025 |
| 625 | MADISON REALTY | Jefferson Parish, LA | Oil & Gas Property | Mar 1998 |
| 626 | MADISON UNIT | Park County, WY | Oil & Gas Property | Jun 2025 |
| 627 | MADISON-CALLAWAY 27 | Martin County, TX | Oil & Gas Property | May 2025 |
| 628 | MADISYN STATE 44X-1 | Williams County, ND | Oil & Gas Property | Jun 2025 |
| 629 | MADJACK 522 | Yoakum County, TX | Oil & Gas Property | May 2025 |
| 630 | MADO | Stephens County, TX | Gas Property | May 2025 |
| 631 | MADOLE | Cleveland County, OK | Oil & Gas Property | Dec 2017 |
| 632 | MADOLE 1 | Beckham County, OK | Oil & Gas Property | May 2025 |
| 633 | MADOLE A. D. GAS UNIT | Madison County, TX | Oil & Gas Property | May 2025 |
| 634 | MADOLYN | Upton County, TX | Oil & Gas Property | May 2025 |
| 635 | MADRID | Sterling County, TX | Oil & Gas Property | May 2025 |
| 636 | MADRID | Midland County, TX | Oil & Gas Property | May 2025 |
| 637 | MADRON | Washington County, OK | Gas Property | Apr 2019 |
| 638 | MADRON | Labette County, KS | Gas Property | Apr 2025 |
| 639 | MADRON R | Labette County, KS | Gas Property | Apr 2025 |
| 640 | MADSEN | Converse County, WY | Oil & Gas Property | May 2025 |
| 641 | MADSEN | Montague County, TX | Oil & Gas Property | May 2025 |
| 642 | MADSEN 41-13H | Dunn County, ND | Oil & Gas Property | Jun 2025 |
| 643 | MADSEN STATE FED 21-36-1 FH | Converse County, WY | Oil & Gas Property | Jun 2025 |
| 644 | MADSEN-JOHNSON | Bottineau County, ND | Oil & Gas Property | Jun 2025 |
| 645 | MADSON | McKenzie County, ND | Oil & Gas Property | Jun 2025 |
| 646 | MADURO UNIT | Lea County, NM | Oil & Gas Property | Jun 2025 |
| 647 | MADUSA | Belmont County, OH | Gas Property | Mar 2025 |
| 648 | MADYSEN | Ector County, TX | Oil & Gas Property | Dec 2024 |
| 649 | MADZIA | Harrison County, OH | Oil & Gas Property | Mar 2025 |
| 650 | MAE B VANCE | Limestone County, TX | Oil & Gas Property | May 2025 |
| 651 | MAE F CURRY | Lea County, NM | Oil & Gas Property | May 2025 |
| 652 | MAE FLETCHER | De Soto Parish, LA | Oil & Gas Property | Dec 2024 |
| 653 | MAE FRANKS | Wayne County, OH | Oil & Gas Property | Dec 2024 |
| 654 | MAE GALE | San Juan County, NM | Oil & Gas Property | Jun 2025 |
| 655 | MAE J 8 | Weld County, CO | Oil & Gas Property | Jun 2025 |
| 656 | MAE SEAL | Panola County, TX | Oil & Gas Property | Oct 2023 |
| 657 | MAE WEST | Caddo County, OK | Oil & Gas Property | Jun 2025 |
| 658 | MAES | Rice County, KS | Oil & Gas Property | Mar 2025 |
| 659 | MAES | Barton County, KS | Oil Property | Apr 1990 |
| 660 | MAESTAS | La Plata County, CO | Gas Property | May 2025 |
| 661 | MAESTRO | Pecos County, TX | Oil & Gas Property | May 2025 |
| 662 | MAESTRO 12-4 | Las Animas County, CO | Gas Property | Jun 2025 |
| 663 | MAEYERS | Wise County, TX | Oil & Gas Property | May 2025 |
| 664 | MAEYERS | Wise County, TX | Oil & Gas Property | May 2025 |
| 665 | MAEYERS A - MAEYERS B (SA) | Wise County, TX | Gas Property | May 2025 |
| 666 | MAEYERS B - MAEYERS A (SA) | Wise County, TX | Gas Property | May 2025 |
| 667 | MAEYERS B -CARPENTER HEIRS (SA) | Wise County, TX | Gas Property | May 2025 |
| 668 | MAEYERS-JANUARY | Wise County, TX | Oil & Gas Property | May 2025 |
| 669 | MAEYERS-MAEYERSJANUARY (SA) | Wise County, TX | Oil & Gas Property | May 2025 |
| 670 | MAEYERSJANUARY-MAEYERS (SA) | Wise County, TX | Oil & Gas Property | May 2025 |
| 671 | MAG C | Pecos County, TX | Oil & Gas Property | Feb 2021 |
| 672 | MAG-SEALY (YATES) UNIT | Ward County, TX | Oil & Gas Property | May 2025 |
| 673 | MAG.DUVAL RANCH SEC. 208-209 | Duval County, TX | Oil & Gas Property | May 2025 |
| 674 | MAGA BEA | Beaver County, PA | Gas Property | Jun 2025 |
| 675 | MAGAGNOTTI | Armstrong County, PA | Gas Property | Dec 2024 |
| 676 | MAGAN | Ohio County, KY | Oil Property | Oct 2021 |
| 677 | MAGARIGAL GAS UNIT 1 | Karnes County, TX | Oil & Gas Property | May 2025 |
| 678 | MAGDA | Blaine County, MT | Gas Property | Sep 2009 |
| 679 | MAGEE | Walthall County, MS | Oil Property | Dec 2011 |
| 680 | MAGEE | Kern County, CA | Oil & Gas Property | Jun 2025 |
| 681 | MAGEE | Lafayette County, AR | Oil Property | Dec 1991 |
| 682 | MAGEE | Walthall County, MS | Oil & Gas Property | Dec 2011 |
| 683 | MAGEE | Gray County, TX | Gas Property | May 2025 |
| 684 | MAGEE ELSIE B | Hockley County, TX | Oil & Gas Property | May 2025 |
| 685 | MAGEE, CORRINE | Lafayette County, AR | Oil Property | May 1970 |
| 686 | MAGEE-SMITH | Concordia Parish, LA | Oil & Gas Property | Dec 2024 |
| 687 | MAGELLAN | Reagan County, TX | Oil & Gas Property | May 2025 |
| 688 | MAGELLAN 1H | San Augustine County, TX | Oil & Gas Property | May 2025 |
| 689 | MAGELLAN FEDERAL | Eddy County, NM | Oil & Gas Property | Jun 2025 |
| 690 | MAGENHEIMER | Santa Barbara County, CA | Oil & Gas Property | Jun 2025 |
| 691 | MAGERS | Hockley County, TX | Oil & Gas Property | May 2025 |
| 692 | MAGERS | Knox County, OH | Oil & Gas Property | Dec 2024 |
| 693 | MAGES-NIGHT | Edwards County, KS | Oil Property | Jan 2018 |
| 694 | MAGGARD | Washington County, CO | Gas Property | Jun 2025 |
| 695 | MAGGARD, LOUISA 6 | Pike County, KY | Oil & Gas Property | Dec 2023 |
| 696 | MAGGART | Pawnee County, OK | Oil & Gas Property | Sep 2015 |
| 697 | MAGGIE | Bradford County, PA | Gas Property | Jun 2025 |
| 698 | MAGGIE | Hughes County, OK | Oil & Gas Property | Jun 2010 |
| 699 | MAGGIE | Upton County, TX | Oil & Gas Property | May 2025 |
| 700 | MAGGIE | Menard County, TX | Oil & Gas Property | May 2025 |