| 501 | DRY CREEK | Carbon County, MT | Oil & Gas Property | May 2024 |
| 502 | DUANE | Richland County, MT | Oil & Gas Property | May 2025 |
| 503 | DUBOIS | Teton County, MT | Oil Property | Mar 2025 |
| 504 | DUBOIS | Teton County, MT | Oil Property | Aug 1996 |
| 505 | DUCK CREEK 1 | McCone County, MT | Oil & Gas Property | Nov 2024 |
| 506 | DUGOUT FEDERAL 1-15 | Richland County, MT | Oil & Gas Property | May 2025 |
| 507 | DULL | Liberty County, MT | Gas Property | Mar 2025 |
| 508 | DUMAS | Chouteau County, MT | Gas Property | May 2025 |
| 509 | DUNBAR | Blaine County, MT | Gas Property | May 2025 |
| 510 | DUNMORE | Big Horn County, MT | Gas Property | Jun 2017 |
| 511 | DUNN 42-4 | Roosevelt County, MT | Oil & Gas Property | May 2025 |
| 512 | DUSEK | Hill County, MT | Gas Property | May 2025 |
| 513 | DWYER | Sheridan County, MT | Oil & Gas Property | Apr 2023 |
| 514 | DYNNESON | Richland County, MT | Oil & Gas Property | May 2025 |
| 515 | DYRDAHL | Toole County, MT | Gas Property | Apr 2025 |
| 516 | E CHOUTEAU | Blaine County, MT | Gas Property | May 2025 |
| 517 | E M REIBE | Toole County, MT | Oil Property | May 2025 |
| 518 | E. GOFF 1 | Sheridan County, MT | Oil & Gas Property | May 2025 |
| 519 | E. HANSEN | Sheridan County, MT | Oil & Gas Property | Nov 1995 |
| 520 | E. SUNDSTED | Sheridan County, MT | Oil & Gas Property | Aug 1996 |
| 521 | E. WESTGA | Sheridan County, MT | Oil & Gas Property | Jul 1994 |
| 522 | E.M.BROWN | Toole County, MT | Oil & Gas Property | Apr 2025 |
| 523 | EAGLE 4-9 | Richland County, MT | Oil & Gas Property | May 2025 |
| 524 | EAGLE CREEK | Liberty County, MT | Gas Property | May 2025 |
| 525 | EARL | Richland County, MT | Oil & Gas Property | May 2025 |
| 526 | EARL-RITA HSU | Richland County, MT | Oil & Gas Property | May 2025 |
| 527 | EAST END | Hill County, MT | Gas Property | May 2025 |
| 528 | EAST HELMERICK | Toole County, MT | Oil Property | Jul 2020 |
| 529 | EBET | Park County, WY | Oil & Gas Property | May 2025 |
| 530 | EBET2 | Carbon County, MT | Oil & Gas Property | May 2025 |
| 531 | EBFR | Park County, WY | Oil & Gas Property | Apr 2024 |
| 532 | EBFR2 | Carbon County, MT | Oil & Gas Property | May 2025 |
| 533 | EBM2 | Carbon County, MT | Oil & Gas Property | May 2025 |
| 534 | ECA FEDERAL | Stillwater County, MT | Oil Property | Apr 2025 |
| 535 | ECA FOOTHILLS | Carbon County, MT | Oil & Gas Property | Apr 2025 |
| 536 | ED-PAUL | Richland County, MT | Oil & Gas Property | May 2025 |
| 537 | EDGAR | Richland County, MT | Oil & Gas Property | May 2025 |
| 538 | EDWARD JONES | Pondera County, MT | Oil & Gas Property | Apr 2025 |
| 539 | EDWARDS | Toole County, MT | Oil & Gas Property | Jan 2024 |
| 540 | EDWARDS | Toole County, MT | Gas Property | Apr 2025 |
| 541 | EGAN 1-14H | Richland County, MT | Oil & Gas Property | May 2025 |
| 542 | EHLI | Toole County, MT | Gas Property | Feb 1996 |
| 543 | EKLAND | Dawson County, MT | Oil & Gas Property | Apr 2025 |
| 544 | ELAINE | Richland County, MT | Oil & Gas Property | May 2025 |
| 545 | ELK BASIN | Park County, WY | Oil & Gas Property | May 2025 |
| 546 | ELLA MARIE 2759 42-9H | Roosevelt County, MT | Oil & Gas Property | May 2025 |
| 547 | ELLINGSON | Toole County, MT | Oil & Gas Property | Nov 2024 |
| 548 | ELM 3-12H | Richland County, MT | Oil & Gas Property | May 2025 |
| 549 | ELOB | Fallon County, MT | Oil & Gas Property | May 2025 |
| 550 | ELOB | Fallon County, MT | Oil & Gas Property | May 2025 |
| 551 | ELPEL | Dawson County, MT | Oil & Gas Property | Apr 2025 |
| 552 | ELROY 32-31 1H | Richland County, MT | Oil & Gas Property | May 2025 |
| 553 | ELVSAAS | Roosevelt County, MT | Oil & Gas Property | Feb 2023 |
| 554 | EMMERT | Toole County, MT | Oil Property | Apr 2025 |
| 555 | EMMONS | Toole County, MT | Oil & Gas Property | Nov 2018 |
| 556 | ENGELKING | Toole County, MT | Oil & Gas Property | May 2025 |
| 557 | ENGEMOEN | Toole County, MT | Oil Property | May 2025 |
| 558 | ENGLISH FEDERAL 1-5H | Richland County, MT | Oil & Gas Property | May 2025 |
| 559 | ENGSTROM | Toole County, MT | Oil Property | Mar 2025 |
| 560 | EPLETVEIT | Toole County, MT | Gas Property | May 2025 |
| 561 | EPU 1 | Roosevelt County, MT | Oil Property | Apr 2025 |
| 562 | EPU 2 | Roosevelt County, MT | Oil Property | Apr 2025 |
| 563 | EPU 3 | Roosevelt County, MT | Oil Property | Dec 2002 |
| 564 | EPU 4 | Roosevelt County, MT | Oil Property | Apr 2025 |
| 565 | EPU 5 | Roosevelt County, MT | Oil Property | Apr 2025 |
| 566 | EPU 6 | Roosevelt County, MT | Oil Property | Oct 2024 |
| 567 | EPU 8 | Roosevelt County, MT | Oil Property | Feb 2021 |
| 568 | EPU 9 | Roosevelt County, MT | Oil Property | Jul 2024 |
| 569 | EPU DEEP 1 | Roosevelt County, MT | Oil & Gas Property | Apr 2025 |
| 570 | ERHARD 2 | Hill County, MT | Gas Property | May 2025 |
| 571 | ERICKSON | Pondera County, MT | Oil Property | Apr 2025 |
| 572 | ERICKSON | Teton County, MT | Oil Property | Mar 2025 |
| 573 | ERVING WOLF ( | Blaine County, MT | Oil & Gas Property | Apr 2025 |
| 574 | ESSEX-COBB | Glacier County, MT | Oil & Gas Property | Apr 2024 |
| 575 | ETEB2 330 | Carbon County, MT | Oil & Gas Property | May 2025 |
| 576 | EUGENE 14X-8 | Richland County, MT | Oil & Gas Property | May 2025 |
| 577 | EXCHANGE | Glacier County, MT | Oil Property | Oct 2024 |
| 578 | F. BRUINS | Toole County, MT | Oil Property | May 2025 |
| 579 | FABER | Chouteau County, MT | Gas Property | May 2025 |
| 580 | FALCON FEDERAL | Roosevelt County, MT | Oil & Gas Property | May 2025 |
| 581 | FALLON 27-28 #1H | Roosevelt County, MT | Oil & Gas Property | May 2025 |
| 582 | FALTRINO | Hill County, MT | Gas Property | Jul 2022 |
| 583 | FANNIE FEDERAL 2759 43-19H | Roosevelt County, MT | Oil & Gas Property | May 2025 |
| 584 | FARBO | Toole County, MT | Oil Property | Mar 2025 |
| 585 | FARMER | Musselshell County, MT | Oil Property | Aug 1993 |
| 586 | FARNSWORTH 1-18H | Richland County, MT | Oil & Gas Property | May 2025 |
| 587 | FARRAH 35-36 #1H | Roosevelt County, MT | Oil & Gas Property | May 2025 |
| 588 | FAYE FEDERAL 2759 43-19H | Roosevelt County, MT | Oil & Gas Property | May 2025 |
| 589 | FEARLESS WILLIS 26-15-HLID3 | Richland County, MT | Oil & Gas Property | May 2025 |
| 590 | FEARLESS-M | Richland County, MT | Oil & Gas Property | May 2025 |
| 591 | FEARLESS-TINY 25-13-HLSU | Richland County, MT | Oil & Gas Property | May 2025 |
| 592 | FED. SIGNAL BUTTE | Hill County, MT | Gas Property | May 2025 |
| 593 | FEDERAL | Carter County, MT | Gas Property | Aug 2012 |
| 594 | FEDERAL | Blaine County, MT | Gas Property | May 2025 |
| 595 | FEDERAL | Musselshell County, MT | Oil Property | Sep 2015 |
| 596 | FEDERAL | Toole County, MT | Gas Property | May 2025 |
| 597 | FEDERAL | Musselshell County, MT | Oil & Gas Property | Nov 2024 |
| 598 | FEDERAL | Phillips County, MT | Gas Property | Apr 2025 |
| 599 | FEDERAL | Chouteau County, MT | Gas Property | May 2025 |
| 600 | FEDERAL | Blaine County, MT | Gas Property | May 2012 |