| 501 | STATE 01-24 1 | La Plata County, CO | Gas Property | May 2026 |
| 502 | STATE 1 | Adams County, CO | Oil & Gas Property | Sep 2018 |
| 503 | STATE 16 | Weld County, CO | Oil & Gas Property | Dec 2025 |
| 504 | STATE 16-1 | Weld County, CO | Oil & Gas Property | Sep 2019 |
| 505 | STATE 36 | Weld County, CO | Oil & Gas Property | Mar 2017 |
| 506 | STATE 36 | Yuma County, CO | Gas Property | May 2026 |
| 507 | STATE 844-36 | Phillips County, CO | Gas Property | Sep 2023 |
| 508 | STATE A | Adams County, CO | Oil & Gas Property | May 2018 |
| 509 | STATE ANDERSON | Larimer County, CO | Oil & Gas Property | May 2026 |
| 510 | STATE ANTELOPE | Weld County, CO | Oil & Gas Property | May 2026 |
| 511 | STATE ANTELOPE | Weld County, CO | Oil & Gas Property | May 2026 |
| 512 | STATE BIERSTADT 4-65 35-34 | Arapahoe County, CO | Oil & Gas Property | May 2026 |
| 513 | STATE BOOTH 36 | Weld County, CO | Oil & Gas Property | Apr 2026 |
| 514 | STATE C | La Plata County, CO | Gas Property | May 2026 |
| 515 | STATE CD | La Plata County, CO | Gas Property | May 2026 |
| 516 | STATE CHALLENGER 5-65 2-3 3BYH | Arapahoe County, CO | Oil & Gas Property | May 2026 |
| 517 | STATE CROW VALLEY | Weld County, CO | Oil & Gas Property | May 2026 |
| 518 | STATE DILLARD 16-2 | Weld County, CO | Oil & Gas Property | May 2013 |
| 519 | STATE EHRLICH 36 | Weld County, CO | Oil & Gas Property | May 2026 |
| 520 | STATE HARVARD | Arapahoe County, CO | Oil & Gas Property | May 2026 |
| 521 | STATE HURON 5-65 13-18-17 | Arapahoe County, CO | Oil & Gas Property | May 2026 |
| 522 | STATE LA PLATA 5-65 13-1 | Arapahoe County, CO | Oil & Gas Property | May 2026 |
| 523 | STATE LAND | Moffat County, CO | Oil & Gas Property | May 2026 |
| 524 | STATE MASSIVE | Arapahoe County, CO | Oil & Gas Property | May 2026 |
| 525 | STATE MZ | La Plata County, CO | Gas Property | May 2026 |
| 526 | STATE NORTH PLATTE | Weld County, CO | Oil & Gas Property | May 2026 |
| 527 | STATE OF CO | Arapahoe County, CO | Oil & Gas Property | May 2026 |
| 528 | STATE OF CO | Adams County, CO | Oil & Gas Property | Sep 2018 |
| 529 | STATE OF CO 1 | Adams County, CO | Oil & Gas Property | Apr 2023 |
| 530 | STATE OF COLORADO | Weld County, CO | Oil & Gas Property | Jun 2004 |
| 531 | STATE OF COLORADO | Yuma County, CO | Gas Property | May 2026 |
| 532 | STATE OF COLORADO | Baca County, CO | Oil & Gas Property | Jan 2017 |
| 533 | STATE OF COLORADO | Moffat County, CO | Oil & Gas Property | Aug 2013 |
| 534 | STATE OF COLORADO | Adams County, CO | Oil & Gas Property | Mar 2016 |
| 535 | STATE OF COLORADO A | Weld County, CO | Oil & Gas Property | Apr 2017 |
| 536 | STATE OF COLORADO AB | Adams County, CO | Oil & Gas Property | Apr 2017 |
| 537 | STATE OF COLORADO AM | Weld County, CO | Oil & Gas Property | May 2018 |
| 538 | STATE OF COLORADO AS | Las Animas County, CO | Gas Property | May 2026 |
| 539 | STATE OF COLORADO AT | Las Animas County, CO | Gas Property | May 2026 |
| 540 | STATE OF COLORADO AV | La Plata County, CO | Gas Property | May 2026 |
| 541 | STATE OF COLORADO AW | La Plata County, CO | Gas Property | May 2026 |
| 542 | STATE OF COLORADO KP | Garfield County, CO | Oil & Gas Property | May 2026 |
| 543 | STATE OF COLORADO P | Adams County, CO | Oil & Gas Property | May 2026 |
| 544 | STATE PETERSON | Weld County, CO | Oil & Gas Property | Oct 2025 |
| 545 | STATE PH FENRIR F16 16 | Weld County, CO | Oil & Gas Property | May 2026 |
| 546 | STATE PH PROMETHEUS P22 15N-20-01 | Weld County, CO | Oil & Gas Property | May 2026 |
| 547 | STATE PIKES 4-65 36-31-32 | Arapahoe County, CO | Oil & Gas Property | May 2026 |
| 548 | STATE PRONGHORN | Weld County, CO | Oil & Gas Property | May 2026 |
| 549 | STATE SEVENTY HOLES | Weld County, CO | Oil & Gas Property | May 2026 |
| 550 | STATE SEVENTY HOLES | Weld County, CO | Oil & Gas Property | Oct 2018 |
| 551 | STATE-BRADBURY | Arapahoe County, CO | Oil & Gas Property | May 2018 |
| 552 | STATE-CRAIG | Arapahoe County, CO | Oil & Gas Property | Dec 2016 |
| 553 | STATE-SCHMIDT 36 | Weld County, CO | Oil & Gas Property | Apr 2017 |
| 554 | STEADFAST E27-6 | Weld County, CO | Oil & Gas Property | May 2026 |
| 555 | STEAMBOAT | Weld County, CO | Oil & Gas Property | May 2026 |
| 556 | STEELE | Cheyenne County, CO | Oil & Gas Property | May 2026 |
| 557 | STEELE | Rio Blanco County, CO | Oil & Gas Property | Mar 2026 |
| 558 | STELLA | Weld County, CO | Oil & Gas Property | May 2026 |
| 559 | STELLING | Weld County, CO | Oil & Gas Property | Oct 2025 |
| 560 | STENNETT | Washington County, CO | Oil Property | May 2026 |
| 561 | STEPHENS 7-1 | Weld County, CO | Oil & Gas Property | Sep 2018 |
| 562 | STEPHENS FOE 10 | Weld County, CO | Oil & Gas Property | Aug 2023 |
| 563 | STEPHENS J 31 | Weld County, CO | Oil & Gas Property | Feb 2017 |
| 564 | STEPHENSON 6-3 | Weld County, CO | Oil & Gas Property | Nov 2024 |
| 565 | STEVE J | Weld County, CO | Oil & Gas Property | Jun 2020 |
| 566 | STEWARD | Weld County, CO | Oil & Gas Property | May 2026 |
| 567 | STEWART | Weld County, CO | Oil & Gas Property | Mar 2016 |
| 568 | STEWART | Weld County, CO | Oil & Gas Property | Nov 2016 |
| 569 | STEWART | Weld County, CO | Oil & Gas Property | Mar 2017 |
| 570 | STEWART 36-13H (PL36SW) | Mesa County, CO | Oil & Gas Property | May 2026 |
| 571 | STIEBER | Weld County, CO | Oil & Gas Property | May 2026 |
| 572 | STILLROVEN FARM | Weld County, CO | Oil & Gas Property | May 2026 |
| 573 | STINAR | Weld County, CO | Oil & Gas Property | May 2024 |
| 574 | STOFFER | Rio Blanco County, CO | Oil & Gas Property | May 2026 |
| 575 | STONE | Garfield County, CO | Oil & Gas Property | May 2026 |
| 576 | STONE | Yuma County, CO | Oil & Gas Property | May 2026 |
| 577 | STONE | Yuma County, CO | Oil & Gas Property | May 2026 |
| 578 | STONE POINT 33-6 7 | La Plata County, CO | Gas Property | May 2026 |
| 579 | STONEBRAKER | Weld County, CO | Oil & Gas Property | May 2026 |
| 580 | STONEBRAKER | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 581 | STONEHOCKER | Adams County, CO | Oil & Gas Property | Oct 2022 |
| 582 | STORIS E24-7 | Weld County, CO | Oil & Gas Property | May 2026 |
| 583 | STORY GULCH | Garfield County, CO | Oil & Gas Property | May 2026 |
| 584 | STOUT | Weld County, CO | Oil & Gas Property | May 2026 |
| 585 | STRAIT BOTTOM RANCH | Garfield County, CO | Oil & Gas Property | May 2026 |
| 586 | STRAIT SG | Garfield County, CO | Oil & Gas Property | May 2026 |
| 587 | STRANAHAN | Garfield County, CO | Oil & Gas Property | May 2026 |
| 588 | STRANGWAYS | Yuma County, CO | Gas Property | May 2026 |
| 589 | STREAR | Weld County, CO | Oil & Gas Property | Jan 2024 |
| 590 | STREETER | La Plata County, CO | Gas Property | May 2026 |
| 591 | STRIPES FEDERAL LD18-7 | Weld County, CO | Oil & Gas Property | May 2026 |
| 592 | STROH | Weld County, CO | Oil & Gas Property | May 2023 |
| 593 | STROH | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 594 | STROH | Weld County, CO | Oil & Gas Property | May 2026 |
| 595 | STROHAUER | Weld County, CO | Oil & Gas Property | Apr 2024 |
| 596 | STROHAUER | Weld County, CO | Oil & Gas Property | Aug 2023 |
| 597 | STROMBERGER | Weld County, CO | Oil & Gas Property | Apr 2026 |
| 598 | STROMBERGER | Weld County, CO | Oil & Gas Property | May 2026 |
| 599 | STROMQUIST | Weld County, CO | Oil & Gas Property | May 2026 |
| 600 | STRONG | Weld County, CO | Oil & Gas Property | May 2026 |