| 2501 | KALCEVIC | Arapahoe County, CO | Oil & Gas Property | May 2018 |
| 2502 | KALCEVIC | Adams County, CO | Oil & Gas Property | May 2019 |
| 2503 | KALLSEN | Adams County, CO | Oil & Gas Property | Dec 2023 |
| 2504 | KALLSEN | Denver County, CO | Oil & Gas Property | May 2018 |
| 2505 | KALLSEN 15-0 | Adams County, CO | Oil & Gas Property | Sep 2018 |
| 2506 | KAMLA | Yuma County, CO | Gas Property | Jan 2025 |
| 2507 | KAMMERZELL | Weld County, CO | Oil & Gas Property | Oct 2019 |
| 2508 | KAMMERZELL | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2509 | KANGA STATE D 36 | Weld County, CO | Oil & Gas Property | May 2021 |
| 2510 | KARAKAKES H1 | Weld County, CO | Oil & Gas Property | Mar 2018 |
| 2511 | KARCH BLUE D | Weld County, CO | Oil & Gas Property | Jul 2020 |
| 2512 | KARLBERG STATE 36-4 | Weld County, CO | Oil & Gas Property | Apr 2017 |
| 2513 | KATE RED D 29 | Weld County, CO | Oil & Gas Property | Sep 2018 |
| 2514 | KATE WHITE D 29 | Weld County, CO | Oil & Gas Property | Nov 2018 |
| 2515 | KATIE EILEEN 34-7-35 | La Plata County, CO | Gas Property | Jan 2025 |
| 2516 | KATS | Broomfield County, CO | Oil & Gas Property | Nov 2018 |
| 2517 | KAUAI | Lincoln County, CO | Oil & Gas Property | Jan 2025 |
| 2518 | KAUFMAN | Garfield County, CO | Oil & Gas Property | Jan 2025 |
| 2519 | KAUP 844-3 | Phillips County, CO | Gas Property | Sep 2023 |
| 2520 | KAWAKAMI | Weld County, CO | Oil & Gas Property | Mar 2022 |
| 2521 | KAWATA | Weld County, CO | Oil & Gas Property | Oct 2024 |
| 2522 | KBL 1 | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2523 | KEATING | La Plata County, CO | Gas Property | Jan 2025 |
| 2524 | KEEGAN PATRICK 33-7-11 | La Plata County, CO | Gas Property | Jan 2025 |
| 2525 | KEHN-USXAA | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2526 | KEINATH | Mesa County, CO | Oil & Gas Property | Jan 2025 |
| 2527 | KEINATH FEDERAL | Mesa County, CO | Oil & Gas Property | Jan 2025 |
| 2528 | KEJR | Washington County, CO | Oil & Gas Property | Jan 2025 |
| 2529 | KEJR | Washington County, CO | Oil & Gas Property | Dec 2020 |
| 2530 | KELL 35 | Garfield County, CO | Oil & Gas Property | Jan 2025 |
| 2531 | KELLER | Weld County, CO | Oil & Gas Property | Jul 2019 |
| 2532 | KELLER | Weld County, CO | Oil & Gas Property | May 2019 |
| 2533 | KELLER | Yuma County, CO | Gas Property | Jan 2025 |
| 2534 | KELLER CATTLE | Yuma County, CO | Gas Property | Jan 2025 |
| 2535 | KELLER FEDERAL | Yuma County, CO | Gas Property | Jan 2025 |
| 2536 | KELLY 34-1 | Garfield County, CO | Oil & Gas Property | Jan 2025 |
| 2537 | KELLY FARMS | Weld County, CO | Oil & Gas Property | Apr 2018 |
| 2538 | KELSALL | La Plata County, CO | Gas Property | Jan 2025 |
| 2539 | KELTON | Adams County, CO | Oil & Gas Property | Sep 2021 |
| 2540 | KENNEDY | La Plata County, CO | Oil & Gas Property | Jul 2013 |
| 2541 | KENNEDY | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2542 | KENNEDY | Las Animas County, CO | Gas Property | Oct 2024 |
| 2543 | KENNEDY | Weld County, CO | Oil & Gas Property | Nov 2022 |
| 2544 | KENNEDY A | La Plata County, CO | Gas Property | Jan 2025 |
| 2545 | KENNEDY STATE | Phillips County, CO | Gas Property | Aug 2022 |
| 2546 | KENYON | Weld County, CO | Oil & Gas Property | Apr 2019 |
| 2547 | KEOWN STATE | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2548 | KERBS | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2549 | KERBS | Weld County, CO | Oil & Gas Property | Feb 2017 |
| 2550 | KERBS | Yuma County, CO | Gas Property | Jan 2025 |
| 2551 | KERN | Weld County, CO | Oil & Gas Property | May 2021 |
| 2552 | KERN | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2553 | KERN | Cheyenne County, CO | Gas Property | Sep 2005 |
| 2554 | KERN | Cheyenne County, CO | Oil & Gas Property | Jan 2025 |
| 2555 | KERN GW | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2556 | KERR | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2557 | KERR-MCGEE | Weld County, CO | Oil & Gas Property | Oct 2019 |
| 2558 | KERRIGAN 32-6-2 | Archuleta County, CO | Gas Property | Jan 2025 |
| 2559 | KERRY | Lincoln County, CO | Oil & Gas Property | Jan 2025 |
| 2560 | KETO | Weld County, CO | Oil & Gas Property | Feb 2018 |
| 2561 | KETTL | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2562 | KEVIN LC26-7 | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2563 | KG TRUST | La Plata County, CO | Gas Property | Jan 2025 |
| 2564 | KGA 1 | Yuma County, CO | Gas Property | Jan 2025 |
| 2565 | KGA 2 | Yuma County, CO | Gas Property | Jan 2025 |
| 2566 | KHAKI CAMPBELL | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2567 | KIEFER GEORGE W U | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2568 | KILDOW | Weld County, CO | Oil & Gas Property | Aug 2022 |
| 2569 | KIMBALL CREEK | Mesa County, CO | Oil & Gas Property | Jan 2025 |
| 2570 | KIMBALL MTN DH02-6 B07 799 | Garfield County, CO | Oil & Gas Property | Jan 2025 |
| 2571 | KINCHELOE | Washington County, CO | Oil Property | Dec 2024 |
| 2572 | KINDSFATER | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2573 | KING | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2574 | KING | Weld County, CO | Oil & Gas Property | Apr 2018 |
| 2575 | KING 22-13 | Las Animas County, CO | Gas Property | Jan 2025 |
| 2576 | KING 3-65 28 | Adams County, CO | Oil & Gas Property | Jan 2025 |
| 2577 | KING-PYLES | Kiowa County, CO | Oil Property | Jul 2023 |
| 2578 | KINSMAN | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 2579 | KINZER | Weld County, CO | Oil & Gas Property | Dec 2020 |
| 2580 | KIRBY | Weld County, CO | Oil & Gas Property | Sep 2017 |
| 2581 | KIRBY ROBERTSON | Rio Blanco County, CO | Gas Property | Jan 2025 |
| 2582 | KIRBY-EIDSON | Rio Blanco County, CO | Gas Property | Jan 2025 |
| 2583 | KIRCHENSCHLAGER | Yuma County, CO | Gas Property | Jan 2025 |
| 2584 | KIRK-L | Logan County, CO | Oil Property | Jan 2025 |
| 2585 | KIRKMEYER | Weld County, CO | Oil & Gas Property | May 2022 |
| 2586 | KISER | Yuma County, CO | Gas Property | Jan 2025 |
| 2587 | KISSLER | Weld County, CO | Oil & Gas Property | Mar 2024 |
| 2588 | KISSLER | Weld County, CO | Oil & Gas Property | Jun 2020 |
| 2589 | KISSLER-AMEN | Weld County, CO | Oil & Gas Property | Nov 2019 |
| 2590 | KITELEY | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2591 | KITZMILLER | Yuma County, CO | Gas Property | Jan 2025 |
| 2592 | KIWI 292 | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2593 | KIYOTA | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2594 | KLAENHAMMER | Moffat County, CO | Oil & Gas Property | Dec 2024 |
| 2595 | KLAUSNER | Weld County, CO | Oil & Gas Property | Jul 2022 |
| 2596 | KLEIN | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2597 | KLEIN | Weld County, CO | Oil & Gas Property | Oct 2023 |
| 2598 | KLEIN | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2599 | KLEIN (LANYARD EXTENSION) | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2600 | KLEIN FEDERAL | La Plata County, CO | Gas Property | Jan 2025 |