| 2501 | KELSALL | La Plata County, CO | Gas Property | Apr 2026 |
| 2502 | KELTON | Adams County, CO | Oil & Gas Property | Sep 2021 |
| 2503 | KELTON WGV | Garfield County, CO | Oil & Gas Property | May 2026 |
| 2504 | KENNEDY | La Plata County, CO | Oil & Gas Property | Jul 2013 |
| 2505 | KENNEDY | Weld County, CO | Oil & Gas Property | May 2026 |
| 2506 | KENNEDY | Las Animas County, CO | Gas Property | Oct 2024 |
| 2507 | KENNEDY | Weld County, CO | Oil & Gas Property | Nov 2022 |
| 2508 | KENNEDY STATE | Phillips County, CO | Gas Property | Aug 2022 |
| 2509 | KENYON | Weld County, CO | Oil & Gas Property | Apr 2019 |
| 2510 | KEOWN STATE | Weld County, CO | Oil & Gas Property | May 2026 |
| 2511 | KERBS | Weld County, CO | Oil & Gas Property | May 2026 |
| 2512 | KERBS | Weld County, CO | Oil & Gas Property | Feb 2017 |
| 2513 | KERBS | Yuma County, CO | Gas Property | May 2026 |
| 2514 | KERN | Weld County, CO | Oil & Gas Property | May 2021 |
| 2515 | KERN | Weld County, CO | Oil & Gas Property | Mar 2025 |
| 2516 | KERN | Cheyenne County, CO | Gas Property | Aug 2005 |
| 2517 | KERN | Cheyenne County, CO | Oil & Gas Property | May 2026 |
| 2518 | KERN GW | Weld County, CO | Oil & Gas Property | May 2026 |
| 2519 | KERR | Weld County, CO | Oil & Gas Property | May 2026 |
| 2520 | KERR-MCGEE | Weld County, CO | Oil & Gas Property | Oct 2019 |
| 2521 | KERRIGAN 32-6-2 | Archuleta County, CO | Gas Property | May 2026 |
| 2522 | KERRY | Lincoln County, CO | Oil & Gas Property | Apr 2026 |
| 2523 | KETO | Weld County, CO | Oil & Gas Property | Feb 2018 |
| 2524 | KETTL | Weld County, CO | Oil & Gas Property | May 2026 |
| 2525 | KEVIN LC26-7 | Weld County, CO | Oil & Gas Property | May 2026 |
| 2526 | KG TRUST | La Plata County, CO | Gas Property | May 2026 |
| 2527 | KGA 1 | Yuma County, CO | Gas Property | May 2026 |
| 2528 | KGA 2 | Yuma County, CO | Gas Property | May 2026 |
| 2529 | KHAKI CAMPBELL | Weld County, CO | Oil & Gas Property | May 2026 |
| 2530 | KIDD LD22-7 | Weld County, CO | Oil & Gas Property | May 2026 |
| 2531 | KIEFER GEORGE W U | Weld County, CO | Oil & Gas Property | May 2026 |
| 2532 | KILDOW | Weld County, CO | Oil & Gas Property | Aug 2022 |
| 2533 | KIMBALL CREEK | Mesa County, CO | Oil & Gas Property | Apr 2026 |
| 2534 | KIMBALL MTN DH02-6 B07 799 | Garfield County, CO | Oil & Gas Property | May 2026 |
| 2535 | KINCHELOE | Washington County, CO | Oil Property | Jun 2025 |
| 2536 | KINDSFATER | Weld County, CO | Oil & Gas Property | Oct 2025 |
| 2537 | KING | Weld County, CO | Oil & Gas Property | May 2026 |
| 2538 | KING | Weld County, CO | Oil & Gas Property | Apr 2018 |
| 2539 | KING 3-65 28 | Adams County, CO | Oil & Gas Property | May 2026 |
| 2540 | KING-PYLES | Kiowa County, CO | Oil Property | Sep 2025 |
| 2541 | KINSMAN | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 2542 | KINZER | Weld County, CO | Oil & Gas Property | Dec 2020 |
| 2543 | KIRBY | Weld County, CO | Oil & Gas Property | Sep 2017 |
| 2544 | KIRBY ROBERTSON | Rio Blanco County, CO | Gas Property | Mar 2026 |
| 2545 | KIRBY-EIDSON | Rio Blanco County, CO | Gas Property | Mar 2026 |
| 2546 | KIRCHENSCHLAGER | Yuma County, CO | Gas Property | May 2026 |
| 2547 | KIRK-L | Logan County, CO | Oil Property | Jun 2026 |
| 2548 | KIRKMEYER | Weld County, CO | Oil & Gas Property | May 2022 |
| 2549 | KISER | Yuma County, CO | Gas Property | May 2026 |
| 2550 | KISSLER | Weld County, CO | Oil & Gas Property | Mar 2024 |
| 2551 | KISSLER | Weld County, CO | Oil & Gas Property | Jun 2020 |
| 2552 | KISSLER-AMEN | Weld County, CO | Oil & Gas Property | Oct 2019 |
| 2553 | KITELEY | Weld County, CO | Oil & Gas Property | May 2026 |
| 2554 | KITZMILLER | Yuma County, CO | Gas Property | May 2026 |
| 2555 | KIWI 292 | Weld County, CO | Oil & Gas Property | May 2026 |
| 2556 | KIYOTA | Weld County, CO | Oil & Gas Property | May 2026 |
| 2557 | KLAENHAMMER | Moffat County, CO | Oil & Gas Property | Apr 2026 |
| 2558 | KLAUSNER | Weld County, CO | Oil & Gas Property | Jul 2022 |
| 2559 | KLEIN | Weld County, CO | Oil & Gas Property | May 2026 |
| 2560 | KLEIN | Weld County, CO | Oil & Gas Property | May 2026 |
| 2561 | KLEIN | Weld County, CO | Oil & Gas Property | May 2026 |
| 2562 | KLEIN (LANYARD EXTENSION) | Weld County, CO | Oil & Gas Property | May 2026 |
| 2563 | KLEIN FEDERAL | La Plata County, CO | Gas Property | May 2026 |
| 2564 | KLEPPER | Cheyenne County, CO | Oil Property | May 2026 |
| 2565 | KLIE | Cheyenne County, KS | Gas Property | May 2026 |
| 2566 | KLINGINSMITH | Weld County, CO | Oil Property | Apr 2014 |
| 2567 | KLINZMAN | Yuma County, CO | Gas Property | May 2026 |
| 2568 | KLINZMANN | Yuma County, CO | Gas Property | May 2026 |
| 2569 | KLOEFKORN | Washington County, CO | Oil Property | May 2026 |
| 2570 | KLUSMAN | La Plata County, CO | Gas Property | May 2026 |
| 2571 | KM DH | Garfield County, CO | Oil & Gas Property | May 2026 |
| 2572 | KNAPP | Yuma County, CO | Gas Property | May 2026 |
| 2573 | KNAUB | Weld County, CO | Oil & Gas Property | May 2017 |
| 2574 | KNAUB | Weld County, CO | Oil & Gas Property | May 2026 |
| 2575 | KNAUS | Garfield County, CO | Oil & Gas Property | May 2026 |
| 2576 | KNIEVEL | Weld County, CO | Oil & Gas Property | Jan 2021 |
| 2577 | KNIGHT | Weld County, CO | Oil & Gas Property | May 2026 |
| 2578 | KNIGHT | Garfield County, CO | Oil & Gas Property | May 2026 |
| 2579 | KNIGHT | La Plata County, CO | Gas Property | May 2026 |
| 2580 | KNIGHT D | La Plata County, CO | Gas Property | May 2026 |
| 2581 | KNIGHT E | La Plata County, CO | Gas Property | May 2026 |
| 2582 | KNODEL | Yuma County, CO | Gas Property | May 2026 |
| 2583 | KNOWLTON | Moffat County, CO | Oil Property | May 2026 |
| 2584 | KNOX | Mesa County, CO | Oil & Gas Property | May 2026 |
| 2585 | KNOX | Weld County, CO | Oil & Gas Property | Sep 2019 |
| 2586 | KNUDSEN | Logan County, CO | Oil Property | May 2026 |
| 2587 | KODAK | Weld County, CO | Oil & Gas Property | Apr 2026 |
| 2588 | KODAK NORTH FD 2 | Weld County, CO | Oil & Gas Property | May 2026 |
| 2589 | KODAK SOUTH | Weld County, CO | Oil & Gas Property | May 2026 |
| 2590 | KOEHLER | Weld County, CO | Oil & Gas Property | Apr 2026 |
| 2591 | KOENIG | Yuma County, CO | Gas Property | May 2026 |
| 2592 | KOENIG-ASHBY | Logan County, CO | Oil Property | May 2026 |
| 2593 | KOESTER | Logan County, CO | Oil & Gas Property | Mar 2013 |
| 2594 | KOESTER | Weld County, CO | Oil & Gas Property | May 2026 |
| 2595 | KOHLER | Weld County, CO | Oil & Gas Property | Mar 2017 |
| 2596 | KOHLHOFF | Weld County, CO | Oil & Gas Property | Feb 2019 |
| 2597 | KOHLHOFF | Weld County, CO | Oil & Gas Property | May 2026 |
| 2598 | KOKOPELLI | Garfield County, CO | Oil & Gas Property | May 2026 |
| 2599 | KOLOA 15-22 | Weld County, CO | Oil & Gas Property | May 2026 |
| 2600 | KONA A19-6 | Weld County, CO | Oil & Gas Property | May 2026 |