| 2501 | KERN | Cheyenne County, CO | Gas Property | Aug 2005 |
| 2502 | KERN | Cheyenne County, CO | Oil & Gas Property | Feb 2026 |
| 2503 | KERN GW | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2504 | KERR | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2505 | KERR-MCGEE | Weld County, CO | Oil & Gas Property | Oct 2019 |
| 2506 | KERRIGAN 32-6-2 | Archuleta County, CO | Gas Property | Feb 2026 |
| 2507 | KERRY | Lincoln County, CO | Oil & Gas Property | Feb 2026 |
| 2508 | KETO | Weld County, CO | Oil & Gas Property | Feb 2018 |
| 2509 | KETTL | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2510 | KEVIN LC26-7 | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2511 | KG TRUST | La Plata County, CO | Gas Property | Feb 2026 |
| 2512 | KGA 1 | Yuma County, CO | Gas Property | Feb 2026 |
| 2513 | KGA 2 | Yuma County, CO | Gas Property | Feb 2026 |
| 2514 | KHAKI CAMPBELL | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2515 | KIDD LD22-7 | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2516 | KIEFER GEORGE W U | Weld County, CO | Oil & Gas Property | Jan 2026 |
| 2517 | KILDOW | Weld County, CO | Oil & Gas Property | Aug 2022 |
| 2518 | KIMBALL CREEK | Mesa County, CO | Oil & Gas Property | Feb 2026 |
| 2519 | KIMBALL MTN DH02-6 B07 799 | Garfield County, CO | Oil & Gas Property | Feb 2026 |
| 2520 | KINCHELOE | Washington County, CO | Oil Property | Jun 2025 |
| 2521 | KINDSFATER | Weld County, CO | Oil & Gas Property | Oct 2025 |
| 2522 | KING | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2523 | KING | Weld County, CO | Oil & Gas Property | Apr 2018 |
| 2524 | KING 3-65 28 | Adams County, CO | Oil & Gas Property | Feb 2026 |
| 2525 | KING-PYLES | Kiowa County, CO | Oil Property | Sep 2025 |
| 2526 | KINSMAN | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 2527 | KINZER | Weld County, CO | Oil & Gas Property | Dec 2020 |
| 2528 | KIRBY | Weld County, CO | Oil & Gas Property | Sep 2017 |
| 2529 | KIRBY ROBERTSON | Rio Blanco County, CO | Gas Property | Feb 2026 |
| 2530 | KIRBY-EIDSON | Rio Blanco County, CO | Gas Property | Feb 2026 |
| 2531 | KIRCHENSCHLAGER | Yuma County, CO | Gas Property | Feb 2026 |
| 2532 | KIRK-L | Logan County, CO | Oil Property | Mar 2026 |
| 2533 | KIRKMEYER | Weld County, CO | Oil & Gas Property | May 2022 |
| 2534 | KISER | Yuma County, CO | Gas Property | Feb 2026 |
| 2535 | KISSLER | Weld County, CO | Oil & Gas Property | Mar 2024 |
| 2536 | KISSLER | Weld County, CO | Oil & Gas Property | Jun 2020 |
| 2537 | KISSLER-AMEN | Weld County, CO | Oil & Gas Property | Oct 2019 |
| 2538 | KITELEY | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2539 | KITZMILLER | Yuma County, CO | Gas Property | Feb 2026 |
| 2540 | KIWI 292 | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2541 | KIYOTA | Weld County, CO | Oil & Gas Property | Oct 2025 |
| 2542 | KLAENHAMMER | Moffat County, CO | Oil & Gas Property | Aug 2025 |
| 2543 | KLAUSNER | Weld County, CO | Oil & Gas Property | Jul 2022 |
| 2544 | KLEIN | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2545 | KLEIN | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2546 | KLEIN | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2547 | KLEIN (LANYARD EXTENSION) | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2548 | KLEIN FEDERAL | La Plata County, CO | Gas Property | Feb 2026 |
| 2549 | KLEPPER | Cheyenne County, CO | Oil Property | Feb 2026 |
| 2550 | KLIE | Cheyenne County, KS | Gas Property | Feb 2026 |
| 2551 | KLINGINSMITH | Weld County, CO | Oil Property | Apr 2014 |
| 2552 | KLINZMAN | Yuma County, CO | Gas Property | Feb 2026 |
| 2553 | KLINZMANN | Yuma County, CO | Gas Property | Feb 2026 |
| 2554 | KLOEFKORN | Washington County, CO | Oil Property | Mar 2026 |
| 2555 | KLUSMAN | La Plata County, CO | Gas Property | Feb 2026 |
| 2556 | KM DH | Garfield County, CO | Oil & Gas Property | Feb 2026 |
| 2557 | KNAPP | Yuma County, CO | Gas Property | Feb 2026 |
| 2558 | KNAUB | Weld County, CO | Oil & Gas Property | May 2017 |
| 2559 | KNAUB | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2560 | KNAUS | Garfield County, CO | Oil & Gas Property | Feb 2026 |
| 2561 | KNIEVEL | Weld County, CO | Oil & Gas Property | Jan 2021 |
| 2562 | KNIGHT | Weld County, CO | Oil & Gas Property | Aug 2025 |
| 2563 | KNIGHT | Garfield County, CO | Oil & Gas Property | Feb 2026 |
| 2564 | KNIGHT | La Plata County, CO | Gas Property | Feb 2026 |
| 2565 | KNIGHT D | La Plata County, CO | Gas Property | Feb 2026 |
| 2566 | KNIGHT E | La Plata County, CO | Gas Property | Feb 2026 |
| 2567 | KNODEL | Yuma County, CO | Gas Property | Feb 2026 |
| 2568 | KNOWLTON | Moffat County, CO | Oil Property | Feb 2026 |
| 2569 | KNOX | Mesa County, CO | Oil & Gas Property | Feb 2026 |
| 2570 | KNOX | Weld County, CO | Oil & Gas Property | Sep 2019 |
| 2571 | KNUDSEN | Logan County, CO | Oil Property | Feb 2026 |
| 2572 | KODAK | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2573 | KODAK NORTH FD 2 | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2574 | KODAK SOUTH | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2575 | KOEHLER | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2576 | KOENIG | Yuma County, CO | Gas Property | Feb 2026 |
| 2577 | KOENIG-ASHBY | Logan County, CO | Oil Property | Feb 2026 |
| 2578 | KOESTER | Logan County, CO | Oil & Gas Property | Mar 2013 |
| 2579 | KOESTER | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2580 | KOHLER | Weld County, CO | Oil & Gas Property | Mar 2017 |
| 2581 | KOHLHOFF | Weld County, CO | Oil & Gas Property | Feb 2019 |
| 2582 | KOHLHOFF | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2583 | KOKOPELLI | Garfield County, CO | Oil & Gas Property | Feb 2026 |
| 2584 | KOLOA 15-22 | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2585 | KONA A19-6 | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2586 | KOOLSTRA 2 | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2587 | KOON | La Plata County, CO | Gas Property | Feb 2026 |
| 2588 | KORF | Yuma County, CO | Gas Property | Feb 2026 |
| 2589 | KORF | Yuma County, CO | Gas Property | Feb 2026 |
| 2590 | KORF | Yuma County, CO | Gas Property | Feb 2026 |
| 2591 | KORI J 19 | Weld County, CO | Oil & Gas Property | Sep 2016 |
| 2592 | KORTUM | Adams County, CO | Oil & Gas Property | Feb 2026 |
| 2593 | KOSHAK | La Plata County, CO | Gas Property | Feb 2026 |
| 2594 | KOSKIE-BRUMLEY DRAW | Montezuma County, CO | Oil & Gas Property | Oct 2012 |
| 2595 | KOWACH | Moffat County, CO | Oil & Gas Property | Feb 2026 |
| 2596 | KRAFT | Adams County, CO | Oil & Gas Property | Oct 2015 |
| 2597 | KRAGER | Weld County, CO | Oil & Gas Property | May 2015 |
| 2598 | KRAIG LC25-7 | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 2599 | KRAJACK 43-27 | La Plata County, CO | Gas Property | Feb 2026 |
| 2600 | KRAMER FEDERAL LC22-72 | Weld County, CO | Oil & Gas Property | Feb 2026 |