| 401 | MACINTYRE UNIT | Washington County, PA | Gas Property | Mar 2026 |
| 402 | MACIUKIEWICZ | Chautauqua County, NY | Gas Property | Dec 2023 |
| 403 | MACK | Park County, WY | Oil Property | Apr 2026 |
| 404 | MACK | Grady County, OK | Oil & Gas Property | Apr 2026 |
| 405 | MACK | Elk County, PA | Oil & Gas Property | Dec 2018 |
| 406 | MACK | Erie County, PA | Gas Property | Dec 1994 |
| 407 | MACK | Garfield County, OK | Oil & Gas Property | Mar 2026 |
| 408 | MACK | Glasscock County, TX | Oil & Gas Property | Mar 2026 |
| 409 | MACK | Garfield County, OK | Oil & Gas Property | Mar 2026 |
| 410 | MACK | McKenzie County, ND | Oil & Gas Property | Apr 2026 |
| 411 | MACK | Greene County, PA | Oil & Gas Property | Dec 2025 |
| 412 | MACK 1 | Woods County, OK | Oil & Gas Property | Apr 2026 |
| 413 | MACK 1-1 #1 | Escambia County, AL | Oil & Gas Property | Mar 2026 |
| 414 | MACK 6 - CARTER 43 (ALLOC) | Glasscock County, TX | Oil & Gas Property | Mar 2026 |
| 415 | MACK A | Knox County, OH | Oil & Gas Property | Dec 2025 |
| 416 | MACK CARR 8 | Atoka County, OK | Oil & Gas Property | Mar 2026 |
| 417 | MACK FEE | Kern County, CA | Oil & Gas Property | Mar 2026 |
| 418 | MACK HOGAN | Bossier Parish, LA | Oil & Gas Property | Oct 2024 |
| 419 | MACKAY | Texas County, OK | Gas Property | Mar 2026 |
| 420 | MACKAY, JACK D. ET AL | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 421 | MACKELVEY 1906 | Kingfisher County, OK | Oil & Gas Property | Mar 2026 |
| 422 | MACKENZIE 13 FEE | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 423 | MACKENZIE JOY 3-10H | Mountrail County, ND | Oil & Gas Property | Apr 2026 |
| 424 | MACKEREL | Glasscock County, TX | Oil & Gas Property | Mar 2026 |
| 425 | MACKEREL | La Salle County, TX | Oil & Gas Property | Mar 2026 |
| 426 | MACKERSIE 1 | Mecosta County, MI | Oil Property | Apr 2026 |
| 427 | MACKESSY | Kern County, CA | Oil Property | Feb 1986 |
| 428 | MACKESSY | Kern County, CA | Oil & Gas Property | Mar 2026 |
| 429 | MACKEY | Garvin County, OK | Oil & Gas Property | Apr 2026 |
| 430 | MACKEY | Shackelford County, TX | Oil & Gas Property | Mar 2026 |
| 431 | MACKEY | Midland County, TX | Oil & Gas Property | Mar 2026 |
| 432 | MACKEY | Holmes County, OH | Oil & Gas Property | Dec 2025 |
| 433 | MACKEY | Pushmataha County, OK | Gas Property | Mar 2026 |
| 434 | MACKEY | Roger Mills County, OK | Oil & Gas Property | Mar 2026 |
| 435 | MACKEY | Woods County, OK | Oil & Gas Property | Apr 2026 |
| 436 | MACKEY | McLean County, KY | Oil Property | May 2001 |
| 437 | MACKEY | Gregg County, TX | Oil & Gas Property | Mar 2026 |
| 438 | MACKEY | Whitley County, KY | Oil & Gas Property | Dec 2023 |
| 439 | MACKEY | Woods County, OK | Oil & Gas Property | Mar 2026 |
| 440 | MACKEY | Gregg County, TX | Oil & Gas Property | Mar 2026 |
| 441 | MACKEY | Woods County, OK | Oil & Gas Property | Apr 2026 |
| 442 | MACKEY | Woods County, OK | Oil & Gas Property | Apr 2026 |
| 443 | MACKEY | Kingfisher County, OK | Oil & Gas Property | Mar 2026 |
| 444 | MACKEY & CARAWAY | McLean County, KY | Oil Property | Aug 2018 |
| 445 | MACKEY 1 | Woodward County, OK | Oil & Gas Property | Mar 2026 |
| 446 | MACKEY 10-14 | Van Buren County, AR | Gas Property | Jul 2024 |
| 447 | MACKEY 2-YOUNG (SA) A 1H | Wise County, TX | Oil & Gas Property | Mar 2026 |
| 448 | MACKEY FA | Woods County, OK | Oil & Gas Property | Apr 2026 |
| 449 | MACKEY TRUST | Campbell County, WY | Gas Property | Dec 2011 |
| 450 | MACKEY W. L | Wise County, TX | Oil & Gas Property | Mar 2026 |
| 451 | MACKEY, MARGARET (LIFE) MACKEY-WOLFE | Barbour County, WV | Oil & Gas Property | Dec 2021 |
| 452 | MACKEY, MARGARET MACKEY WOLFE | Barbour County, WV | Oil & Gas Property | Dec 2021 |
| 453 | MACKEY, MELVINA B | Clinton County, KY | Oil Property | Nov 2014 |
| 454 | MACKEY, R | Susquehanna County, PA | Gas Property | Mar 2026 |
| 455 | MACKEY-MCCORD | Throckmorton County, TX | Oil & Gas Property | Dec 2018 |
| 456 | MACKIE | Gray County, TX | Oil & Gas Property | Mar 2026 |
| 457 | MACKIE | Hansford County, TX | Oil & Gas Property | Mar 2026 |
| 458 | MACKIE | Nowata County, OK | Gas Property | Mar 2023 |
| 459 | MACKLIN UNIT | Hitchcock County, NE | Oil Property | Dec 2025 |
| 460 | MACKOY W. P | Grayson County, TX | Oil & Gas Property | Jan 2023 |
| 461 | MACKRELL UNIT | Butler County, PA | Gas Property | Mar 2026 |
| 462 | MACLASKEY | Woodson County, KS | Oil Property | Feb 2026 |
| 463 | MACLEAN | Johnson County, TX | Gas Property | Aug 2024 |
| 464 | MACLEAN (M-618) | Clearfield County, PA | Gas Property | Dec 2025 |
| 465 | MACLEOD | Alfalfa County, OK | Oil & Gas Property | Mar 2026 |
| 466 | MACLEOD/NORRIS | Armstrong County, PA | Gas Property | Dec 2025 |
| 467 | MACMAHON | Webb County, TX | Oil & Gas Property | Mar 2026 |
| 468 | MACMASTER | Williams County, ND | Oil & Gas Property | Apr 2026 |
| 469 | MACNEIL | Adams County, MS | Oil & Gas Property | Oct 2019 |
| 470 | MACNEIL | Adams County, MS | Oil & Gas Property | Dec 2025 |
| 471 | MACNEIL F | Adams County, MS | Oil Property | Oct 1991 |
| 472 | MACNEIL FAMILY | Adams County, MS | Oil Property | Dec 2025 |
| 473 | MACNEILL | Washington County, CO | Oil Property | Oct 2024 |
| 474 | MACOMBER-BROUSSARD | Wharton County, TX | Oil & Gas Property | Mar 2026 |
| 475 | MACON | Dickens County, TX | Oil Property | Mar 2026 |
| 476 | MACSY | Campbell County, WY | Gas Property | Jan 2008 |
| 477 | MACY | Red Willow County, NE | Oil Property | Dec 2025 |
| 478 | MACY | Garza County, TX | Oil & Gas Property | Mar 2026 |
| 479 | MACY | Logan County, OK | Oil & Gas Property | Mar 2026 |
| 480 | MACY LOTT SPRABERRY UNIT | Garza County, TX | Oil & Gas Property | Mar 2026 |
| 481 | MACY-LOTT | Garza County, TX | Oil & Gas Property | May 2018 |
| 482 | MAD ADDER 31 STATE COM | Lea County, NM | Oil & Gas Property | Apr 2026 |
| 483 | MAD DOG 2020 | Washington County, PA | Gas Property | Mar 2026 |
| 484 | MAD DOG 26 | Lea County, NM | Oil & Gas Property | Mar 2026 |
| 485 | MAD DOG 26 B3NC STATE COM | Lea County, NM | Oil & Gas Property | Mar 2026 |
| 486 | MAD DOG 26 MD STATE COM 001H | Lea County, NM | Oil & Gas Property | Mar 2026 |
| 487 | MAD DOG 31 30-14N-11W | Blaine County, OK | Oil & Gas Property | Mar 2026 |
| 488 | MAD DOG 35 B | Lea County, NM | Oil & Gas Property | Mar 2026 |
| 489 | MAD DOG 35 CN STATE COM | Lea County, NM | Oil & Gas Property | Mar 2026 |
| 490 | MAD DOG BRA | Bradford County, PA | Gas Property | Mar 2026 |
| 491 | MAD EYE | Uintah County, UT | Oil & Gas Property | Apr 2026 |
| 492 | MAD HATR | Scurry County, TX | Oil & Gas Property | Mar 2026 |
| 493 | MAD HATTER 1506 | Kingfisher County, OK | Oil & Gas Property | Mar 2026 |
| 494 | MAD HATTER FE | Natrona County, WY | Oil Property | Dec 2025 |
| 495 | MAD J UNIT | Gonzales County, TX | Oil & Gas Property | Mar 2026 |
| 496 | MAD KING UNIT | Lavaca County, TX | Oil & Gas Property | Mar 2026 |
| 497 | MAD MAX 6 FEDERAL COM | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 498 | MAD MAX CAMPGROUND | Caddo County, OK | Oil & Gas Property | Mar 2026 |
| 499 | MAD PLAY 5-8-10-7 | Canadian County, OK | Oil & Gas Property | Mar 2026 |
| 500 | MAD RIVER 13 STATE COM | Eddy County, NM | Oil & Gas Property | Mar 2026 |