| 501 | DUNN 42-4 | Roosevelt County, MT | Oil & Gas Property | Feb 2024 |
| 502 | DUSEK | Hill County, MT | Gas Property | Feb 2024 |
| 503 | DWYER | Sheridan County, MT | Oil & Gas Property | Apr 2023 |
| 504 | DYNNESON | Richland County, MT | Oil & Gas Property | Feb 2024 |
| 505 | DYRDAHL | Toole County, MT | Gas Property | Jan 2023 |
| 506 | E CHOUTEAU | Blaine County, MT | Gas Property | Feb 2024 |
| 507 | E M REIBE | Toole County, MT | Oil Property | Dec 2023 |
| 508 | E. HANSEN | Sheridan County, MT | Oil & Gas Property | Nov 1995 |
| 509 | E. SUNDSTED | Sheridan County, MT | Oil & Gas Property | Aug 1996 |
| 510 | E. WESTGA | Sheridan County, MT | Oil & Gas Property | Jul 1994 |
| 511 | E.M.BROWN | Toole County, MT | Oil & Gas Property | Nov 2023 |
| 512 | EAGLE 4-9 | Richland County, MT | Oil & Gas Property | Jan 2024 |
| 513 | EAGLE CREEK | Liberty County, MT | Gas Property | Jan 2024 |
| 514 | EARL | Richland County, MT | Oil & Gas Property | Feb 2024 |
| 515 | EARL-RITA HSU | Richland County, MT | Oil & Gas Property | Feb 2024 |
| 516 | EAST END | Hill County, MT | Gas Property | Feb 2024 |
| 517 | EAST HELMERICK | Toole County, MT | Oil Property | Jul 2020 |
| 518 | EBET | Park County, WY | Oil & Gas Property | Feb 2024 |
| 519 | EBET2 | Carbon County, MT | Oil & Gas Property | Feb 2024 |
| 520 | EBFR | Park County, WY | Oil & Gas Property | Feb 2024 |
| 521 | EBFR2 | Carbon County, MT | Oil & Gas Property | Feb 2024 |
| 522 | EBM2 | Carbon County, MT | Oil & Gas Property | Feb 2024 |
| 523 | ECA FEDERAL | Stillwater County, MT | Oil Property | Jan 2024 |
| 524 | ECA FOOTHILLS | Carbon County, MT | Oil & Gas Property | Jan 2024 |
| 525 | ED-PAUL | Richland County, MT | Oil & Gas Property | Feb 2024 |
| 526 | EDGAR | Richland County, MT | Oil & Gas Property | Feb 2024 |
| 527 | EDWARD JONES | Pondera County, MT | Oil & Gas Property | Nov 2023 |
| 528 | EDWARDS | Toole County, MT | Oil & Gas Property | Jan 2024 |
| 529 | EDWARDS | Toole County, MT | Gas Property | Jan 2024 |
| 530 | EGAN 1-14H | Richland County, MT | Oil & Gas Property | Feb 2024 |
| 531 | EHLI | Toole County, MT | Gas Property | Feb 1996 |
| 532 | EKLAND | Dawson County, MT | Oil & Gas Property | Jan 2024 |
| 533 | ELAINE | Richland County, MT | Oil & Gas Property | Feb 2024 |
| 534 | ELK BASIN | Park County, WY | Oil & Gas Property | Feb 2024 |
| 535 | ELLA MARIE 2759 42-9H | Roosevelt County, MT | Oil & Gas Property | Feb 2024 |
| 536 | ELLINGSON | Toole County, MT | Oil & Gas Property | Jan 2024 |
| 537 | ELM 2-12H | Richland County, MT | Oil & Gas Property | Feb 2024 |
| 538 | ELOB | Fallon County, MT | Oil & Gas Property | Feb 2024 |
| 539 | ELOB | Fallon County, MT | Oil & Gas Property | Feb 2024 |
| 540 | ELPEL | Dawson County, MT | Oil & Gas Property | Jan 2024 |
| 541 | ELVSAAS | Roosevelt County, MT | Oil & Gas Property | Feb 2023 |
| 542 | EMMERT | Toole County, MT | Oil Property | Feb 2024 |
| 543 | EMMONS | Toole County, MT | Oil & Gas Property | Nov 2018 |
| 544 | ENGELKING | Toole County, MT | Oil & Gas Property | Feb 2024 |
| 545 | ENGEMOEN | Toole County, MT | Oil Property | Feb 2024 |
| 546 | ENGSTROM | Toole County, MT | Oil Property | Sep 2023 |
| 547 | EPLETVEIT | Toole County, MT | Gas Property | Jan 2024 |
| 548 | EPU 1 | Roosevelt County, MT | Oil Property | Jan 2024 |
| 549 | EPU 2 | Roosevelt County, MT | Oil Property | Jan 2024 |
| 550 | EPU 3 | Roosevelt County, MT | Oil Property | Dec 2002 |
| 551 | EPU 4 | Roosevelt County, MT | Oil Property | Jan 2024 |
| 552 | EPU 5 | Roosevelt County, MT | Oil Property | Jan 2024 |
| 553 | EPU 6 | Roosevelt County, MT | Oil Property | Jan 2024 |
| 554 | EPU 8 | Roosevelt County, MT | Oil Property | Feb 2021 |
| 555 | EPU 9 | Roosevelt County, MT | Oil Property | Feb 2023 |
| 556 | EPU DEEP 1 | Roosevelt County, MT | Oil & Gas Property | Feb 2024 |
| 557 | ERHARD 2 | Hill County, MT | Gas Property | Feb 2024 |
| 558 | ERICKSON | Pondera County, MT | Oil Property | Jan 2024 |
| 559 | ERICKSON | Teton County, MT | Oil Property | Jan 2024 |
| 560 | ESSEX COBB | Glacier County, MT | Oil & Gas Property | Oct 2023 |
| 561 | EUGENE 14X-8 | Richland County, MT | Oil & Gas Property | Feb 2024 |
| 562 | EXCHANGE | Glacier County, MT | Oil Property | Feb 2024 |
| 563 | F. BRUINS | Toole County, MT | Oil Property | Feb 2024 |
| 564 | FABER | Chouteau County, MT | Gas Property | Feb 2024 |
| 565 | FALCON FEDERAL | Roosevelt County, MT | Oil & Gas Property | Feb 2024 |
| 566 | FALTRINO | Hill County, MT | Gas Property | Sep 2021 |
| 567 | FANNIE FEDERAL 2759 43-19H | Roosevelt County, MT | Oil & Gas Property | Feb 2024 |
| 568 | FARBO | Toole County, MT | Oil Property | Dec 2023 |
| 569 | FARMER | Musselshell County, MT | Oil Property | Aug 1993 |
| 570 | FARNSWORTH 1-18H | Richland County, MT | Oil & Gas Property | Feb 2024 |
| 571 | FAYE FEDERAL 2759 43-19H | Roosevelt County, MT | Oil & Gas Property | Feb 2024 |
| 572 | FEARLESS SHERMAN 23-2 | Richland County, MT | Oil & Gas Property | Feb 2024 |
| 573 | FEARLESS-M | Richland County, MT | Oil & Gas Property | Feb 2024 |
| 574 | FEARLESS-WILLIS 26-15-HLID3 | Richland County, MT | Oil & Gas Property | Feb 2024 |
| 575 | FED. 32X-26R | Dawson County, MT | Oil & Gas Property | Feb 2024 |
| 576 | FED. SIGNAL BUTTE | Hill County, MT | Gas Property | Feb 2024 |
| 577 | FEDERAL | Carter County, MT | Gas Property | Aug 2012 |
| 578 | FEDERAL | Blaine County, MT | Gas Property | Feb 2024 |
| 579 | FEDERAL | Musselshell County, MT | Oil Property | Sep 2015 |
| 580 | FEDERAL | Toole County, MT | Gas Property | Feb 2024 |
| 581 | FEDERAL | Musselshell County, MT | Oil & Gas Property | Dec 2023 |
| 582 | FEDERAL | Phillips County, MT | Gas Property | Feb 2024 |
| 583 | FEDERAL | Chouteau County, MT | Gas Property | Feb 2024 |
| 584 | FEDERAL | Blaine County, MT | Gas Property | Oct 2011 |
| 585 | FEDERAL | Blaine County, MT | Gas Property | Feb 2024 |
| 586 | FEDERAL | Blaine County, MT | Oil Property | Jan 2024 |
| 587 | FEDERAL | Sheridan County, WY | Gas Property | Jun 2015 |
| 588 | FEDERAL | Phillips County, MT | Gas Property | Feb 2024 |
| 589 | FEDERAL | Phillips County, MT | Gas Property | Feb 2024 |
| 590 | FEDERAL | Campbell County, WY | Oil Property | Oct 1990 |
| 591 | FEDERAL | Phillips County, MT | Gas Property | Feb 2024 |
| 592 | FEDERAL | Campbell County, WY | Oil & Gas Property | Feb 2024 |
| 593 | FEDERAL | Fallon County, MT | Oil & Gas Property | Feb 2024 |
| 594 | FEDERAL | Toole County, MT | Oil & Gas Property | Nov 2023 |
| 595 | FEDERAL | Dawson County, MT | Oil & Gas Property | Feb 2024 |
| 596 | FEDERAL | Phillips County, MT | Gas Property | Feb 2024 |
| 597 | FEDERAL | Fallon County, MT | Oil & Gas Property | Feb 2024 |
| 598 | FEDERAL | Phillips County, MT | Gas Property | Feb 2024 |
| 599 | FEDERAL | Blaine County, MT | Gas Property | Nov 2016 |
| 600 | FEDERAL | Phillips County, MT | Gas Property | Feb 2024 |