| 5501 | MCLEOD | Kern County, CA | Oil Property | Mar 1986 |
| 5502 | MCLEOD | San Juan County, NM | Oil & Gas Property | Jun 2026 |
| 5503 | MCLEOD | Weld County, CO | Oil & Gas Property | Jul 2022 |
| 5504 | MCLEOD | Freestone County, TX | Gas Property | Jun 2026 |
| 5505 | MCLEOD 1 | Kingman County, KS | Oil & Gas Property | May 2026 |
| 5506 | MCLEOD GAS UNIT | Cherokee County, TX | Oil & Gas Property | May 2026 |
| 5507 | MCLEROY | Johnson County, TX | Gas Property | Jun 2026 |
| 5508 | MCLERRAN | Milam County, TX | Oil & Gas Property | Jun 2026 |
| 5509 | MCLIN | Garfield County, CO | Oil & Gas Property | May 2026 |
| 5510 | MCLIN R J | Lee County, KY | Oil Property | Apr 2018 |
| 5511 | MCLINTOCK | Burleson County, TX | Oil & Gas Property | May 2026 |
| 5512 | MCLINTOCK 1 | Martin County, TX | Oil & Gas Property | Jun 2026 |
| 5513 | MCLOFFLIN | Harrison County, TX | Oil & Gas Property | Jun 2026 |
| 5514 | MCLOFFLIN-SCOTT HV UNIT | Harrison County, TX | Gas Property | Jun 2026 |
| 5515 | MCMAHAN | Wheeler County, TX | Oil & Gas Property | Jun 2026 |
| 5516 | MCMAHAN | Jackson County, OK | Oil Property | Mar 2025 |
| 5517 | MCMAHAN | Canadian County, OK | Oil & Gas Property | Jun 2026 |
| 5518 | MCMAHAN | Okfuskee County, OK | Oil & Gas Property | Jul 2026 |
| 5519 | MCMAHAN | Cotton County, OK | Oil Property | Jul 2026 |
| 5520 | MCMAHAN 0 | McClain County, OK | Oil & Gas Property | Jun 2026 |
| 5521 | MCMAHAN P | Okmulgee County, OK | Oil Property | Jul 2023 |
| 5522 | MCMAHAN S | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 5523 | MCMAHAN UNIT | Washington County, TX | Oil & Gas Property | Jun 2026 |
| 5524 | MCMAHON | Cotton County, OK | Oil Property | May 2026 |
| 5525 | MCMAHON | Gladwin County, MI | Oil & Gas Property | Apr 2016 |
| 5526 | MCMAHON | Bradford County, PA | Gas Property | Jun 2026 |
| 5527 | MCMAHON | Park County, WY | Oil & Gas Property | Jul 2026 |
| 5528 | MCMAHON | Washington County, OH | Oil & Gas Property | Dec 2025 |
| 5529 | MCMAHON | Tarrant County, TX | Gas Property | Jun 2026 |
| 5530 | MCMAHON | Muskegon County, MI | Oil Property | Jun 2026 |
| 5531 | MCMAHON FEDERAL | Shelby County, TX | Oil & Gas Property | Jun 2026 |
| 5532 | MCMAHON PATENTED | Park County, WY | Oil & Gas Property | Jul 2026 |
| 5533 | MCMAHON RICHARD L | Freestone County, TX | Oil & Gas Property | Jun 2026 |
| 5534 | MCMAKIN | Washita County, OK | Oil & Gas Property | Jun 2026 |
| 5535 | MCMANNIS | Pratt County, KS | Oil & Gas Property | May 2026 |
| 5536 | MCMANUS | Dewitt County, TX | Oil & Gas Property | Jun 2026 |
| 5537 | MCMANUS | Kern County, CA | Oil & Gas Property | Jul 2026 |
| 5538 | MCMANUS | Toole County, MT | Oil & Gas Property | Jun 2026 |
| 5539 | MCMANUS | Gonzales County, TX | Oil & Gas Property | Jun 2026 |
| 5540 | MCMANUS | San Juan County, NM | Gas Property | Jun 2026 |
| 5541 | MCMANUS | Okfuskee County, OK | Oil & Gas Property | Jun 2026 |
| 5542 | MCMANUS | Irion County, TX | Oil & Gas Property | Jun 2026 |
| 5543 | MCMANUS | Stephens County, OK | Oil Property | Jul 2024 |
| 5544 | MCMANUS 33-22 | La Plata County, CO | Gas Property | May 2026 |
| 5545 | MCMASTER | Nolan County, TX | Oil & Gas Property | May 2026 |
| 5546 | MCMASTER | Reagan County, TX | Oil & Gas Property | Jun 2026 |
| 5547 | MCMASTER UNIT | Washington County, PA | Gas Property | Jun 2026 |
| 5548 | MCMASTERS MYRTLE | Reagan County, TX | Oil & Gas Property | Jun 2026 |
| 5549 | MCMEANS | Stonewall County, TX | Oil & Gas Property | Jun 2026 |
| 5550 | MCMEANS W. G. OPERATING AREA | Kent County, TX | Oil & Gas Property | Apr 2026 |
| 5551 | MCMEANS, WALTER G OPE | Kent County, TX | Oil Property | Apr 2026 |
| 5552 | MCMEEN | Stephens County, TX | Oil & Gas Property | Apr 2021 |
| 5553 | MCMENAMY | Johnson County, TX | Gas Property | Jul 2019 |
| 5554 | MCMENAMY | Lubbock County, TX | Oil & Gas Property | Jun 2026 |
| 5555 | MCMENEMY | Anderson County, KS | Oil Property | May 2026 |
| 5556 | MCMICHAEL | Freestone County, TX | Oil & Gas Property | Jun 2026 |
| 5557 | MCMICHAEL | Beaver County, PA | Gas Property | Jun 2026 |
| 5558 | MCMICHAEL | Freestone County, TX | Oil & Gas Property | Jun 2026 |
| 5559 | MCMICHAEL | Stevens County, KS | Gas Property | May 2026 |
| 5560 | MCMICHAEL | Hardeman County, TX | Oil & Gas Property | Jun 2026 |
| 5561 | MCMICHAEL | Kearny County, KS | Gas Property | May 2026 |
| 5562 | MCMICHAEL | De Soto Parish, LA | Gas Property | Dec 2024 |
| 5563 | MCMICHAEL OMA GAS UNIT | Freestone County, TX | Oil & Gas Property | Jun 2026 |
| 5564 | MCMILLAN | Roane County, WV | Oil & Gas Property | Dec 2021 |
| 5565 | MCMILLAN | Sutton County, TX | Oil & Gas Property | May 2026 |
| 5566 | MCMILLAN | Washington County, OK | Oil Property | Nov 2025 |
| 5567 | MCMILLAN | Jack County, TX | Oil & Gas Property | Nov 2023 |
| 5568 | MCMILLAN | Johnson County, AR | Gas Property | Jun 2024 |
| 5569 | MCMILLAN | Finney County, KS | Gas Property | May 2026 |
| 5570 | MCMILLAN | Stafford County, KS | Oil Property | May 2026 |
| 5571 | MCMILLAN | Campbell County, WY | Oil & Gas Property | Sep 2024 |
| 5572 | MCMILLAN | Escambia County, AL | Oil & Gas Property | Jun 2026 |
| 5573 | MCMILLAN | Mitchell County, TX | Oil & Gas Property | Jun 2026 |
| 5574 | MCMILLAN | Stafford County, KS | Oil Property | May 2026 |
| 5575 | MCMILLAN | Doddridge County, WV | Oil & Gas Property | Dec 2021 |
| 5576 | MCMILLAN | Scurry County, TX | Oil & Gas Property | Jun 2026 |
| 5577 | MCMILLAN | Knox County, OH | Oil & Gas Property | Dec 2024 |
| 5578 | MCMILLAN 'A' | Stafford County, KS | Gas Property | Oct 2008 |
| 5579 | MCMILLAN 14-23H | Dunn County, ND | Oil & Gas Property | Jun 2026 |
| 5580 | MCMILLAN 24 STATE | Eddy County, NM | Oil & Gas Property | Jun 2026 |
| 5581 | MCMILLAN 3 | Escambia County, AL | Oil & Gas Property | Jun 2026 |
| 5582 | MCMILLAN A | Stafford County, KS | Oil Property | Apr 2026 |
| 5583 | MCMILLEN | Faulkner County, AR | Gas Property | Jul 2024 |
| 5584 | MCMILLEN | Weld County, CO | Oil & Gas Property | May 2026 |
| 5585 | MCMILLEN | Kay County, OK | Oil Property | May 2026 |
| 5586 | MCMILLEN | Wilson County, KS | Oil & Gas Property | May 2026 |
| 5587 | MCMILLEN | Wilson County, KS | Oil & Gas Property | May 2026 |
| 5588 | MCMILLEN LEASE 25 | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 5589 | MCMILLIAN | Sutton County, TX | Oil & Gas Property | May 2026 |
| 5590 | MCMILLIAN | Fort Bend County, TX | Oil & Gas Property | Jun 2026 |
| 5591 | MCMILLIAN | Creek County, OK | Oil & Gas Property | Sep 2022 |
| 5592 | MCMILLIAN | Washington County, OK | Gas Property | Jun 2015 |
| 5593 | MCMILLIN | Montgomery County, KS | Gas Property | May 2026 |
| 5594 | MCMILLIN | Montgomery County, KS | Gas Property | May 2026 |
| 5595 | MCMILLIN | Montgomery County, KS | Oil & Gas Property | Sep 2025 |
| 5596 | MCMILLIN | Stonewall County, TX | Oil & Gas Property | Jun 2026 |
| 5597 | MCMILLIN (CANYON SAND) UNIT | Stonewall County, TX | Oil & Gas Property | Jun 2026 |
| 5598 | MCMILLION | Clark County, KS | Oil Property | Apr 2026 |
| 5599 | MCMILLON | Taylor County, TX | Oil & Gas Property | May 2026 |
| 5600 | MCMINIMY | Clark County, KS | Oil & Gas Property | Apr 2026 |