| 401 | BINDER | Weld County, CO | Oil & Gas Property | Apr 2023 |
| 402 | BINDER | Weld County, CO | Oil & Gas Property | Feb 2023 |
| 403 | BINDER FED 2 | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 404 | BIRD | Weld County, CO | Oil & Gas Property | Jan 2021 |
| 405 | BISHOP | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 406 | BISON 4-64 15-16 | Arapahoe County, CO | Oil & Gas Property | Sep 2025 |
| 407 | BISON RIDGE | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 408 | BJM 3 | Garfield County, CO | Oil & Gas Property | Sep 2025 |
| 409 | BJM 6 | Garfield County, CO | Oil & Gas Property | Sep 2025 |
| 410 | BJU B26 FED | Garfield County, CO | Oil & Gas Property | Sep 2025 |
| 411 | BJU G35 FED | Garfield County, CO | Oil & Gas Property | Sep 2025 |
| 412 | BJU M23A FED | Garfield County, CO | Oil & Gas Property | Sep 2025 |
| 413 | BJU M33 FED | Garfield County, CO | Oil & Gas Property | Sep 2025 |
| 414 | BLACH | Yuma County, CO | Gas Property | Sep 2025 |
| 415 | BLACH | Yuma County, CO | Gas Property | Sep 2025 |
| 416 | BLACH | Yuma County, CO | Gas Property | Nov 2017 |
| 417 | BLACK 21-22 | La Plata County, CO | Gas Property | Sep 2025 |
| 418 | BLACK RIDGE | La Plata County, CO | Gas Property | Sep 2025 |
| 419 | BLACK TIGER | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 420 | BLACKCOMB | Lincoln County, CO | Oil & Gas Property | Aug 2025 |
| 421 | BLACKMAN | Mesa County, CO | Oil & Gas Property | Sep 2025 |
| 422 | BLAKE | Washington County, CO | Oil & Gas Property | Apr 2025 |
| 423 | BLAKE B29 | Weld County, CO | Oil & Gas Property | Mar 2017 |
| 424 | BLANCA | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 425 | BLANCHE C HOPKINS | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 426 | BLASER | Yuma County, CO | Gas Property | Sep 2025 |
| 427 | BLEDSOE | Yuma County, CO | Gas Property | Aug 2022 |
| 428 | BLEDSOE | Cheyenne County, CO | Oil & Gas Property | Oct 2025 |
| 429 | BLEDSOE | Yuma County, CO | Gas Property | Aug 2022 |
| 430 | BLEDSOE | Yuma County, CO | Gas Property | Feb 2022 |
| 431 | BLEDSOE FEDERAL | Yuma County, CO | Gas Property | Aug 2022 |
| 432 | BLEHM | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 433 | BLEHM | Weld County, CO | Oil & Gas Property | Jun 2025 |
| 434 | BLEHM | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 435 | BLEHM WEST 6X-HC-07-07-67 | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 436 | BLISS 1 | Weld County, CO | Oil & Gas Property | Apr 2017 |
| 437 | BLOCK | La Plata County, CO | Oil & Gas Property | Aug 2025 |
| 438 | BLOCK 17 | La Plata County, CO | Gas Property | Aug 2025 |
| 439 | BLOMENKAMP | Washington County, CO | Oil Property | Sep 2025 |
| 440 | BLOSKAS | Weld County, CO | Oil & Gas Property | Jun 2017 |
| 441 | BLUE 3-65 3 | Adams County, CO | Oil & Gas Property | Sep 2025 |
| 442 | BLUE CHIP 22 | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 443 | BLUE FED 3-65 33-32-31-36 3 | Adams County, CO | Oil & Gas Property | Sep 2025 |
| 444 | BLUE GRAVEL | Moffat County, CO | Oil & Gas Property | Feb 2025 |
| 445 | BLUE TEAL | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 446 | BLUFF FEDERAL | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 447 | BLUFF STATE 30 | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 448 | BLUFFS | Weld County, CO | Oil & Gas Property | Sep 2015 |
| 449 | BM LAND | Weld County, CO | Oil & Gas Property | Jan 2019 |
| 450 | BMC B | Garfield County, CO | Oil & Gas Property | Sep 2025 |
| 451 | BMC D | Garfield County, CO | Oil & Gas Property | Sep 2025 |
| 452 | BOB 1-22 | Lincoln County, CO | Oil & Gas Property | Sep 2025 |
| 453 | BOB AA 24-6 | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 454 | BOB WHITE | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 455 | BOBCAT D-SAND UNIT | Washington County, CO | Oil & Gas Property | Sep 2025 |
| 456 | BOCKIUS 34 | Weld County, CO | Oil & Gas Property | May 2017 |
| 457 | BOEHNER | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 458 | BOHLENDER | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 459 | BOHLENDER | Weld County, CO | Oil & Gas Property | Apr 2018 |
| 460 | BOHNEN 10 | Yuma County, CO | Gas Property | Sep 2025 |
| 461 | BOHRER | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 462 | BOIES | Rio Blanco County, CO | Oil & Gas Property | Sep 2025 |
| 463 | BOIES | Rio Blanco County, CO | Oil & Gas Property | Sep 2025 |
| 464 | BOIES RANCH | Rio Blanco County, CO | Oil & Gas Property | Sep 2025 |
| 465 | BOIKO | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 466 | BOLET | Weld County, CO | Oil & Gas Property | Jun 2025 |
| 467 | BOLET RED X 15 | Weld County, CO | Oil & Gas Property | Apr 2017 |
| 468 | BOLTON | Kiowa County, CO | Gas Property | Nov 2008 |
| 469 | BOMHOFF 5 | Arapahoe County, CO | Oil & Gas Property | Sep 2025 |
| 470 | BOND | Weld County, CO | Oil & Gas Property | Jun 2017 |
| 471 | BONDAD | La Plata County, CO | Gas Property | Sep 2025 |
| 472 | BONDAD 33-9 | La Plata County, CO | Oil & Gas Property | Sep 2025 |
| 473 | BONDS | La Plata County, CO | Gas Property | Sep 2025 |
| 474 | BONIFACIO GALLEGOS A | La Plata County, CO | Gas Property | Sep 2025 |
| 475 | BONINE 34-7-24 4 | La Plata County, CO | Gas Property | Sep 2025 |
| 476 | BOOMERANG | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 477 | BOOMHOG | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 478 | BOOMSLANG FED 8-60 14 | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 479 | BOOTH | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 480 | BOOTH | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 481 | BOOTH | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 482 | BOOTH | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 483 | BOOTH FEDERAL DD06-7 | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 484 | BOOTH STATE C | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 485 | BOOTH USX EE | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 486 | BOREN 34-9 29-3 | La Plata County, CO | Gas Property | Sep 2025 |
| 487 | BORN SITZMAN | Weld County, CO | Oil & Gas Property | May 2023 |
| 488 | BORUCH GM | Garfield County, CO | Oil & Gas Property | Sep 2025 |
| 489 | BORYS C22 | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 490 | BOSELY | Garfield County, CO | Oil & Gas Property | Sep 2025 |
| 491 | BOSLEY | Garfield County, CO | Oil & Gas Property | Sep 2025 |
| 492 | BOSLEY | Morgan County, CO | Oil Property | Sep 2025 |
| 493 | BOST FARM | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 494 | BOULDER BANK | Weld County, CO | Oil & Gas Property | Jul 2018 |
| 495 | BOULTER | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 496 | BOULTER | Weld County, CO | Oil & Gas Property | Oct 2022 |
| 497 | BOULTER STATE G | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 498 | BOULTON 33 | Garfield County, CO | Oil & Gas Property | Sep 2025 |
| 499 | BOWER | Weld County, CO | Oil & Gas Property | Aug 2023 |
| 500 | BOWERS | La Plata County, CO | Gas Property | Sep 2025 |