| 401 | BLACKMAN | Mesa County, CO | Oil & Gas Property | Sep 2024 |
| 402 | BLAKE | Washington County, CO | Oil & Gas Property | Sep 2024 |
| 403 | BLAKE B29 | Weld County, CO | Oil & Gas Property | Mar 2017 |
| 404 | BLANCA | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 405 | BLANCHE C HOPKINS | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 406 | BLASER | Yuma County, CO | Gas Property | Sep 2024 |
| 407 | BLEDSOE | Yuma County, CO | Gas Property | Aug 2022 |
| 408 | BLEDSOE | Cheyenne County, CO | Oil & Gas Property | Oct 2024 |
| 409 | BLEDSOE | Yuma County, CO | Gas Property | Aug 2022 |
| 410 | BLEHM | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 411 | BLEHM | Weld County, CO | Oil & Gas Property | May 2023 |
| 412 | BLEHM | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 413 | BLEHM ST 7X-HNC-10-07-67 | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 414 | BLEHM WEST 6X-HC-07-07-67 | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 415 | BLISS 1 | Weld County, CO | Oil & Gas Property | Apr 2017 |
| 416 | BLOCK | La Plata County, CO | Oil & Gas Property | Jun 2024 |
| 417 | BLOCK 17 | La Plata County, CO | Gas Property | Jun 2024 |
| 418 | BLOMENKAMP | Washington County, CO | Oil Property | Sep 2024 |
| 419 | BLOSKAS | Weld County, CO | Oil & Gas Property | Jun 2017 |
| 420 | BLUE 3-65 3 | Adams County, CO | Oil & Gas Property | Oct 2024 |
| 421 | BLUE CHIP 22 | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 422 | BLUE FED 3-65 33-32-31-36 3 | Adams County, CO | Oil & Gas Property | Oct 2024 |
| 423 | BLUE GRAVEL | Moffat County, CO | Oil & Gas Property | Aug 2024 |
| 424 | BLUE TEAL | Weld County, CO | Oil & Gas Property | Aug 2024 |
| 425 | BLUFF FEDERAL | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 426 | BLUFF STATE 30 | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 427 | BLUFFS | Weld County, CO | Oil & Gas Property | Nov 2016 |
| 428 | BM LAND | Weld County, CO | Oil & Gas Property | Jan 2019 |
| 429 | BMC B | Garfield County, CO | Oil & Gas Property | Sep 2024 |
| 430 | BMC D | Garfield County, CO | Oil & Gas Property | Sep 2024 |
| 431 | BOB 1-22 | Lincoln County, CO | Oil & Gas Property | Oct 2024 |
| 432 | BOB WHITE | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 433 | BOBCAT D-SAND UNIT | Washington County, CO | Oil & Gas Property | Sep 2024 |
| 434 | BOCKIUS 34 | Weld County, CO | Oil & Gas Property | May 2017 |
| 435 | BOEHNER | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 436 | BOHLENDER | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 437 | BOHLENDER | Weld County, CO | Oil & Gas Property | Apr 2018 |
| 438 | BOHNEN 10 | Yuma County, CO | Gas Property | Aug 2023 |
| 439 | BOHRER | Weld County, CO | Oil & Gas Property | Oct 2024 |
| 440 | BOIES | Rio Blanco County, CO | Oil & Gas Property | Sep 2024 |
| 441 | BOIES | Rio Blanco County, CO | Oil & Gas Property | Sep 2024 |
| 442 | BOIES RANCH | Rio Blanco County, CO | Oil & Gas Property | Sep 2024 |
| 443 | BOIKO | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 444 | BOLET | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 445 | BOLET RED X 15 | Weld County, CO | Oil & Gas Property | Apr 2017 |
| 446 | BOLTON | Kiowa County, CO | Gas Property | Nov 2008 |
| 447 | BOMHOFF 5 | Arapahoe County, CO | Oil & Gas Property | Oct 2024 |
| 448 | BOND | Weld County, CO | Oil & Gas Property | Jun 2017 |
| 449 | BONDAD | La Plata County, CO | Gas Property | Oct 2024 |
| 450 | BONDAD 33-9 | La Plata County, CO | Oil & Gas Property | Oct 2024 |
| 451 | BONDS | La Plata County, CO | Gas Property | Oct 2024 |
| 452 | BONIFACIO GALLEGOS A | La Plata County, CO | Gas Property | Oct 2024 |
| 453 | BONINE 34-7-24 4 | La Plata County, CO | Gas Property | Sep 2024 |
| 454 | BOOMERANG | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 455 | BOOMHOG | Weld County, CO | Oil & Gas Property | Aug 2024 |
| 456 | BOOMSLANG FED 8-60 14 | Weld County, CO | Oil & Gas Property | Oct 2024 |
| 457 | BOOTH | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 458 | BOOTH | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 459 | BOOTH | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 460 | BOOTH | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 461 | BOOTH FEDERAL DD06-7 | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 462 | BOOTH STATE C | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 463 | BOOTH USX EE | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 464 | BOREN 34-9 29-3 | La Plata County, CO | Gas Property | Sep 2024 |
| 465 | BORN SITZMAN | Weld County, CO | Oil & Gas Property | May 2023 |
| 466 | BORUCH GM | Garfield County, CO | Oil & Gas Property | Oct 2024 |
| 467 | BORYS C22 | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 468 | BOSELY | Garfield County, CO | Oil & Gas Property | Oct 2024 |
| 469 | BOSLEY | Garfield County, CO | Oil & Gas Property | Oct 2024 |
| 470 | BOSLEY | Morgan County, CO | Oil Property | Jun 2024 |
| 471 | BOST FARM | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 472 | BOULDER BANK | Weld County, CO | Oil & Gas Property | Jul 2018 |
| 473 | BOULTER | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 474 | BOULTER | Weld County, CO | Oil & Gas Property | Oct 2022 |
| 475 | BOULTER STATE G | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 476 | BOULTON 33 | Garfield County, CO | Oil & Gas Property | Sep 2024 |
| 477 | BOWER | Weld County, CO | Oil & Gas Property | Aug 2023 |
| 478 | BOWERS | La Plata County, CO | Gas Property | Oct 2024 |
| 479 | BOWMAN | Yuma County, CO | Gas Property | Aug 2022 |
| 480 | BOWMAN 1 | Yuma County, CO | Gas Property | Sep 2024 |
| 481 | BOX ELDER | Adams County, CO | Oil & Gas Property | Sep 2024 |
| 482 | BOX ELDER H | Adams County, CO | Oil & Gas Property | May 2018 |
| 483 | BOXELDER | Adams County, CO | Oil & Gas Property | Sep 2024 |
| 484 | BOXER UNIT | Morgan County, CO | Oil Property | Aug 2024 |
| 485 | BOYD | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 486 | BOYD 24 | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 487 | BOYD 3 | Weld County, CO | Oil & Gas Property | Oct 2024 |
| 488 | BOYDSTON | Weld County, CO | Oil & Gas Property | Aug 2024 |
| 489 | BRADBURY | Arapahoe County, CO | Oil & Gas Property | May 2018 |
| 490 | BRADBURY | Adams County, CO | Oil & Gas Property | May 2018 |
| 491 | BRADFIELD CH | La Plata County, CO | Gas Property | Oct 2024 |
| 492 | BRADFORD | Yuma County, CO | Gas Property | Aug 2022 |
| 493 | BRAGG | Weld County, CO | Oil & Gas Property | May 2017 |
| 494 | BRANCH | Weld County, CO | Oil & Gas Property | Oct 2024 |
| 495 | BRAND | Yuma County, CO | Gas Property | Sep 2024 |
| 496 | BRANDT | Weld County, CO | Oil & Gas Property | Aug 2019 |
| 497 | BRANT FEDERAL | Adams County, CO | Oil & Gas Property | Sep 2024 |
| 498 | BRANT LE 08 | Adams County, CO | Oil & Gas Property | Sep 2024 |
| 499 | BRANTNER | Weld County, CO | Oil & Gas Property | Jun 2023 |
| 500 | BRATTAIN | Weld County, CO | Oil & Gas Property | Aug 2020 |