| 2601 | LYSITE | Fremont County, WY | Oil & Gas Property | Aug 1999 |
| 2602 | M B ODEGARD | Campbell County, WY | Gas Property | Oct 2014 |
| 2603 | M COZZENS | Big Horn County, WY | Oil & Gas Property | Jul 2026 |
| 2604 | M D HARRIS | Big Horn County, WY | Oil & Gas Property | Jul 2026 |
| 2605 | M DAHILL | Natrona County, WY | Oil & Gas Property | Jun 2025 |
| 2606 | M E JONES | Campbell County, WY | Gas Property | Jun 2026 |
| 2607 | M MAYCOCK | Campbell County, WY | Gas Property | Jun 2026 |
| 2608 | M ODEGARD FED | Campbell County, WY | Gas Property | Apr 2012 |
| 2609 | M ODEGARD FED 2 | Campbell County, WY | Gas Property | Oct 2014 |
| 2610 | M W NEWBERGER | Sweetwater County, WY | Oil & Gas Property | Jun 2026 |
| 2611 | MACCUBBIN 32 | Sheridan County, WY | Gas Property | Jul 2010 |
| 2612 | MACINTOSH BE | Big Horn County, WY | Oil Property | Nov 2017 |
| 2613 | MACKEY TRUST | Campbell County, WY | Gas Property | Dec 2011 |
| 2614 | MACSY | Campbell County, WY | Gas Property | Jan 2008 |
| 2615 | MAD HATTER FE | Natrona County, WY | Oil Property | Jun 2026 |
| 2616 | MADDEN DEEP UNIT | Fremont County, WY | Oil & Gas Property | Jul 2026 |
| 2617 | MADDEN DEEP UNIT | Fremont County, WY | Oil & Gas Property | Jul 2026 |
| 2618 | MADELEINE | Washakie County, WY | Oil Property | Jul 2025 |
| 2619 | MADISON UNIT | Park County, WY | Oil & Gas Property | Jun 2026 |
| 2620 | MADSEN | Converse County, WY | Oil & Gas Property | May 2026 |
| 2621 | MADSEN STATE FED 21-36-1 FH | Converse County, WY | Oil & Gas Property | Jul 2026 |
| 2622 | MAHONEY | Carbon County, WY | Oil & Gas Property | Aug 1979 |
| 2623 | MAHONEY DOME UNIT | Carbon County, WY | Oil & Gas Property | Jun 2026 |
| 2624 | MAJEWSKI | Sheridan County, WY | Gas Property | Jun 2015 |
| 2625 | MALIBU | Laramie County, WY | Oil & Gas Property | Jun 2026 |
| 2626 | MALLI | Campbell County, WY | Gas Property | May 2012 |
| 2627 | MALLI | Sheridan County, WY | Gas Property | Jan 2012 |
| 2628 | MALTA 2 | Converse County, WY | Oil & Gas Property | Jul 2026 |
| 2629 | MANDERSON | Big Horn County, WY | Oil & Gas Property | Jul 2026 |
| 2630 | MANIGAULT | Campbell County, WY | Gas Property | Jun 2015 |
| 2631 | MANIGAULT | Campbell County, WY | Gas Property | Jun 2015 |
| 2632 | MANKIN | Campbell County, WY | Gas Property | Jan 2008 |
| 2633 | MANKIN | Campbell County, WY | Gas Property | Aug 2012 |
| 2634 | MANKIN | Campbell County, WY | Oil & Gas Property | Jul 2026 |
| 2635 | MANKIN | Campbell County, WY | Oil & Gas Property | Jun 2026 |
| 2636 | MANKIN | Campbell County, WY | Oil & Gas Property | Jul 2026 |
| 2637 | MANNING | Converse County, WY | Oil & Gas Property | Jul 2026 |
| 2638 | MANNING | Converse County, WY | Oil & Gas Property | Jul 2026 |
| 2639 | MANNING | Converse County, WY | Oil & Gas Property | Jul 2026 |
| 2640 | MANNING | Converse County, WY | Oil & Gas Property | Jul 2026 |
| 2641 | MANNING | Converse County, WY | Oil & Gas Property | Jun 2026 |
| 2642 | MANSFIELD | Sweetwater County, WY | Oil & Gas Property | Jun 2026 |
| 2643 | MAPES | Campbell County, WY | Oil Property | Jul 2026 |
| 2644 | MAPLE | Campbell County, WY | Oil & Gas Property | Jun 2026 |
| 2645 | MAPLE 3 | Converse County, WY | Oil & Gas Property | May 2026 |
| 2646 | MARAUDER | Laramie County, WY | Oil & Gas Property | Jun 2026 |
| 2647 | MARCIA GAIL | Campbell County, WY | Oil Property | Oct 1994 |
| 2648 | MARIANNE | Sweetwater County, WY | Oil & Gas Property | Jun 2026 |
| 2649 | MARILYN FEDERAL 14-35 | Crook County, WY | Oil & Gas Property | Jul 2026 |
| 2650 | MARILYN STATE 36-69 36 | Converse County, WY | Oil & Gas Property | Jul 2026 |
| 2651 | MARK ANDERSON | Campbell County, WY | Oil & Gas Property | Jul 2026 |
| 2652 | MARKER | Weston County, WY | Oil Property | Jul 1988 |
| 2653 | MARKER CS STATE | Campbell County, WY | Gas Property | Jul 2016 |
| 2654 | MARNA | Campbell County, WY | Oil & Gas Property | Jun 2026 |
| 2655 | MARNA KUEHNE | Campbell County, WY | Oil Property | Mar 1994 |
| 2656 | MARQUARDT | Laramie County, WY | Oil & Gas Property | Jul 2026 |
| 2657 | MARQUISS | Campbell County, WY | Oil & Gas Property | Jul 2026 |
| 2658 | MARQUISS | Campbell County, WY | Gas Property | Jun 2021 |
| 2659 | MARQUISS | Campbell County, WY | Oil & Gas Property | Apr 2022 |
| 2660 | MARQUISS FEE 12 | Crook County, WY | Oil Property | Aug 1991 |
| 2661 | MARSH & ELLIS 2 | Goshen County, WY | Oil & Gas Property | Jun 2026 |
| 2662 | MARSHALL | Crook County, WY | Oil Property | Jun 2026 |
| 2663 | MARTIN | Natrona County, WY | Oil Property | Oct 2008 |
| 2664 | MARTIN SP | Converse County, WY | Oil & Gas Property | Aug 1995 |
| 2665 | MARY 5-3 | Fremont County, WY | Oil & Gas Property | Jul 2026 |
| 2666 | MARY BAKER | Weston County, WY | Oil & Gas Property | Jul 2026 |
| 2667 | MARY HEY | Campbell County, WY | Gas Property | Jun 2026 |
| 2668 | MARYS DRAW | Converse County, WY | Oil & Gas Property | Jun 2026 |
| 2669 | MARYS DRAW | Converse County, WY | Oil & Gas Property | Jun 2026 |
| 2670 | MARYS DRAW | Converse County, WY | Oil & Gas Property | Jun 2026 |
| 2671 | MASK CS FEDERAL | Johnson County, WY | Gas Property | Aug 2018 |
| 2672 | MASK CS FEDERAL | Campbell County, WY | Gas Property | Dec 2019 |
| 2673 | MASON CS | Johnson County, WY | Gas Property | Dec 2019 |
| 2674 | MASS STATE 65-3135 | Campbell County, WY | Oil & Gas Property | Jul 2026 |
| 2675 | MATHER PEAKS 4074-30-31-1 | Converse County, WY | Oil & Gas Property | Jul 2026 |
| 2676 | MATHESON | Campbell County, WY | Oil & Gas Property | Jul 2026 |
| 2677 | MATHESON | Campbell County, WY | Oil & Gas Property | Sep 2016 |
| 2678 | MATLOCK | Park County, WY | Oil Property | Jun 2026 |
| 2679 | MATTIE | Campbell County, WY | Oil & Gas Property | Apr 2009 |
| 2680 | MATTSON RANCH | Laramie County, WY | Oil & Gas Property | Jul 2026 |
| 2681 | MAVERICK SPRINGS | Fremont County, WY | Oil Property | Nov 2016 |
| 2682 | MAY 1 | Park County, WY | Oil Property | Jun 2026 |
| 2683 | MAY 2 | Park County, WY | Oil Property | Jun 2026 |
| 2684 | MAY 3 | Park County, WY | Oil Property | Jun 2026 |
| 2685 | MAY 5H | Park County, WY | Oil Property | Jun 2026 |
| 2686 | MAYNE | Weston County, WY | Oil & Gas Property | Apr 2016 |
| 2687 | MBCC 1 | Campbell County, WY | Gas Property | Oct 2007 |
| 2688 | MCBETH | Campbell County, WY | Oil & Gas Property | Jul 2026 |
| 2689 | MCBETH | Campbell County, WY | Gas Property | Nov 2013 |
| 2690 | MCBETH STATE | Campbell County, WY | Gas Property | May 2012 |
| 2691 | MCBRIDE FEE | Fremont County, WY | Oil & Gas Property | May 2018 |
| 2692 | MCCANN 1 | Campbell County, WY | Gas Property | Nov 2007 |
| 2693 | MCCHESNEY | Natrona County, WY | Oil Property | Jul 2026 |
| 2694 | MCCLAIN | Converse County, WY | Oil & Gas Property | Jul 2026 |
| 2695 | MCCLELLAN | Campbell County, WY | Oil & Gas Property | Aug 1994 |
| 2696 | MCCLURE | Weston County, WY | Oil & Gas Property | Jul 2026 |
| 2697 | MCCLURE | Campbell County, WY | Oil Property | Jul 2026 |
| 2698 | MCCONNAUGHEY | Laramie County, WY | Oil & Gas Property | Jun 2026 |
| 2699 | MCCONNELL C | Campbell County, WY | Gas Property | May 2008 |
| 2700 | MCCREERY | Campbell County, WY | Oil & Gas Property | Mar 2021 |