| 1401 | MAPLES | Cimarron County, OK | Oil Property | Jul 2008 |
| 1402 | MAPLEWOOD | Weld County, CO | Oil & Gas Property | Oct 2021 |
| 1403 | MAPZ MD 13 | Broomfield County, CO | Oil & Gas Property | Apr 2020 |
| 1404 | MAR RANCH | Atascosa County, TX | Oil & Gas Property | Mar 2026 |
| 1405 | MAR-LAWN HEIGHTS SUBDIVISION 3-36 | Manistee County, MI | Oil & Gas Property | Mar 2026 |
| 1406 | MARA UNIT | Wise County, TX | Oil & Gas Property | Mar 2026 |
| 1407 | MARACAS 22 STATE | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 1408 | MARACHE | Goliad County, TX | Oil & Gas Property | Mar 2026 |
| 1409 | MARADA | Winkler County, TX | Oil & Gas Property | Jul 2023 |
| 1410 | MARAIST FARMS I LLC ETAL | Vermilion Parish, LA | Oil & Gas Property | Dec 2022 |
| 1411 | MARAK | Bienville Parish, LA | Gas Property | Nov 2024 |
| 1412 | MARALDO A403 | Dewitt County, TX | Oil & Gas Property | Mar 2026 |
| 1413 | MARALDO-KOOP A USW | Dewitt County, TX | Oil & Gas Property | Mar 2026 |
| 1414 | MARALO | Midland County, TX | Oil & Gas Property | Mar 2026 |
| 1415 | MARALO 16 STATE | Lea County, NM | Oil & Gas Property | Jan 2019 |
| 1416 | MARALO 3 | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 1417 | MARALO 41-32 ALLOCATION 32 | Midland County, TX | Oil & Gas Property | Mar 2026 |
| 1418 | MARALO FEDERAL | Eddy County, NM | Oil & Gas Property | Feb 2026 |
| 1419 | MARALO STATE 33 | Reeves County, TX | Oil & Gas Property | Mar 2026 |
| 1420 | MARALO-CONNELL | Garza County, TX | Oil & Gas Property | Dec 2024 |
| 1421 | MARANVILLE | Ness County, KS | Oil Property | Aug 2015 |
| 1422 | MARATHON | Kern County, CA | Oil & Gas Property | Dec 2025 |
| 1423 | MARATHON | San Juan County, NM | Oil & Gas Property | Mar 2026 |
| 1424 | MARATHON | Reagan County, TX | Oil & Gas Property | Mar 2026 |
| 1425 | MARATHON | Yoakum County, TX | Oil & Gas Property | Mar 2026 |
| 1426 | MARATHON | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 1427 | MARATHON ROAD 1 | Lea County, NM | Oil & Gas Property | Mar 2026 |
| 1428 | MARATHON SECTION 17 STATE COM | Lea County, NM | Oil & Gas Property | Dec 2021 |
| 1429 | MARATHON-UNIVERSITY | Andrews County, TX | Oil & Gas Property | Mar 2026 |
| 1430 | MARAUDER | Laramie County, WY | Oil & Gas Property | Apr 2026 |
| 1431 | MARAUDER | Eddy County, NM | Oil & Gas Property | Apr 2026 |
| 1432 | MARAUDER 1324 | Divide County, ND | Oil & Gas Property | Apr 2026 |
| 1433 | MARAUDER 2413 | Divide County, ND | Oil & Gas Property | Apr 2026 |
| 1434 | MARBACH | Indiana County, PA | Gas Property | Dec 2025 |
| 1435 | MARBACH | Atascosa County, TX | Oil & Gas Property | Mar 2026 |
| 1436 | MARBAKER | Susquehanna County, PA | Gas Property | Mar 2026 |
| 1437 | MARBERRY | Refugio County, TX | Oil & Gas Property | Feb 2023 |
| 1438 | MARBET | Pittsburg County, OK | Gas Property | Mar 2026 |
| 1439 | MARBET | Hughes County, OK | Gas Property | Dec 2018 |
| 1440 | MARBET | Pittsburg County, OK | Gas Property | Mar 2026 |
| 1441 | MARBET LLC | Pittsburg County, OK | Gas Property | Mar 2026 |
| 1442 | MARBET LLC | Hughes County, OK | Oil & Gas Property | Feb 2026 |
| 1443 | MARBLE | Montezuma County, CO | Oil & Gas Property | Jun 2015 |
| 1444 | MARBLE | Los Angeles County, CA | Oil & Gas Property | Jun 1989 |
| 1445 | MARBLE | Lincoln County, OK | Oil & Gas Property | Feb 2008 |
| 1446 | MARBLE 1307 | Canadian County, OK | Oil & Gas Property | Mar 2026 |
| 1447 | MARBLE 6-65 24-12 | Elbert County, CO | Oil & Gas Property | Apr 2026 |
| 1448 | MARBLE FALLS UNIT | Comanche County, TX | Oil & Gas Property | Sep 2016 |
| 1449 | MARBOB | Eddy County, NM | Oil & Gas Property | Apr 2026 |
| 1450 | MARBOB 19 STATE COM | Eddy County, NM | Oil & Gas Property | Apr 2026 |
| 1451 | MARBURGER | Bastrop County, TX | Oil & Gas Property | Feb 2020 |
| 1452 | MARBURGER | Lee County, TX | Oil & Gas Property | Mar 2026 |
| 1453 | MARBURGER A UNIT | Lee County, TX | Oil Property | Feb 2026 |
| 1454 | MARBURGER FARM DAIRY | Butler County, PA | Gas Property | Mar 2026 |
| 1455 | MARC 13-36H | McKenzie County, ND | Oil & Gas Property | Apr 2026 |
| 1456 | MARC FIU 1-8-5XH | Blaine County, OK | Gas Property | Mar 2026 |
| 1457 | MARCAN | Kern County, CA | Oil & Gas Property | Oct 2023 |
| 1458 | MARCEE | Gonzales County, TX | Oil & Gas Property | Nov 2015 |
| 1459 | MARCEL BMM FEDERAL | Eddy County, NM | Oil & Gas Property | Apr 2026 |
| 1460 | MARCELLA | Logan County, OK | Oil & Gas Property | Mar 2026 |
| 1461 | MARCELLA | Divide County, ND | Oil & Gas Property | Apr 2026 |
| 1462 | MARCELLA | Grant County, OK | Oil & Gas Property | Mar 2026 |
| 1463 | MARCELLA 1 | Madison County, TX | Oil & Gas Property | Jan 2026 |
| 1464 | MARCELLA 1-5H | Williams County, ND | Oil & Gas Property | Apr 2026 |
| 1465 | MARCELLA USA 21-4TFH | McKenzie County, ND | Oil & Gas Property | Apr 2026 |
| 1466 | MARCELLUS | Stevens County, KS | Oil & Gas Property | Feb 2026 |
| 1467 | MARCELLUS 'A' | Seward County, KS | Oil & Gas Property | Feb 2026 |
| 1468 | MARCELLUS WALLACE | Coleman County, TX | Oil Property | Apr 2024 |
| 1469 | MARCELO MANUEL 32-29H | Divide County, ND | Oil & Gas Property | Apr 2026 |
| 1470 | MARCH | Tom Green County, TX | Oil & Gas Property | Mar 2026 |
| 1471 | MARCH | Seward County, KS | Oil & Gas Property | Feb 2026 |
| 1472 | MARCH | Labette County, KS | Gas Property | Feb 2026 |
| 1473 | MARCHAND | Caddo County, OK | Oil & Gas Property | Apr 2026 |
| 1474 | MARCHAND | Barton County, KS | Oil Property | Feb 2026 |
| 1475 | MARCHAND 3 | Indiana County, PA | Gas Property | Mar 2026 |
| 1476 | MARCHANT | Montague County, TX | Oil & Gas Property | Mar 2026 |
| 1477 | MARCHANT | Grady County, OK | Oil & Gas Property | Apr 2026 |
| 1478 | MARCHBANKS | Scurry County, TX | Oil & Gas Property | Mar 2026 |
| 1479 | MARCHBANKS | Howard County, TX | Oil & Gas Property | Mar 2026 |
| 1480 | MARCHBANKS | Duval County, TX | Oil & Gas Property | Mar 2026 |
| 1481 | MARCHBANKS-CADENA | Duval County, TX | Oil & Gas Property | Aug 2023 |
| 1482 | MARCHEZAK | Washington County, PA | Gas Property | Dec 2025 |
| 1483 | MARCHEZAK | Washington County, PA | Oil & Gas Property | Mar 2026 |
| 1484 | MARCHINI ZINGIESER | Bradford County, PA | Gas Property | Jan 2026 |
| 1485 | MARCHMAN | Young County, TX | Oil & Gas Property | Mar 2026 |
| 1486 | MARCHO W&M | Susquehanna County, PA | Gas Property | Mar 2026 |
| 1487 | MARCHUS | Pittsburg County, OK | Gas Property | Mar 2026 |
| 1488 | MARCIA 1-1 | Blaine County, OK | Oil & Gas Property | Mar 2026 |
| 1489 | MARCIA 3-10 | Williams County, ND | Oil & Gas Property | Apr 2026 |
| 1490 | MARCIA GAIL | Campbell County, WY | Oil Property | Oct 1994 |
| 1491 | MARCIA SWAN | Jack County, TX | Oil & Gas Property | Mar 2026 |
| 1492 | MARCIA-SHELLY (SA) UNIT | Lavaca County, TX | Oil & Gas Property | Mar 2026 |
| 1493 | MARCO | Westmoreland County, PA | Gas Property | Mar 2026 |
| 1494 | MARCO | Westmoreland County, PA | Gas Property | Dec 2025 |
| 1495 | MARCO | Kern County, CA | Oil & Gas Property | Feb 2026 |
| 1496 | MARCO 160 | Reagan County, TX | Oil & Gas Property | Mar 2026 |
| 1497 | MARCO GAS UNIT | San Augustine County, TX | Oil & Gas Property | Mar 2026 |
| 1498 | MARCOM | Tillman County, OK | Oil Property | Apr 2026 |
| 1499 | MARCOM | Hockley County, TX | Oil & Gas Property | Mar 2026 |
| 1500 | MARCOTTE | Rooks County, KS | Oil Property | Feb 2026 |