MARILYN UNIT 1-6
API 15065241960001 · Graham County, Kansas
Authorized Injection Well
API
15065241960001
Operator
Cobalt Energy LLC
County
Graham
Location
Spudded
2021-06-25
Completed
2021-09-21
Measured depth
3,828 ft
Injection
60 monthly filings with Kansas, Jan 2021 to Dec 2025. Fluid is in barrels and gas is in MCF; the two are never added.
Well type
Authorized Injection Well
Injection zone
CEDAR HILLS
Cumulative fluid injected
306,021 bbl
Cumulative gas injected
0 MCF
| Month | Fluid injected (bbl) | Gas injected (MCF) | Max pressure (psi) | Days |
|---|---|---|---|---|
| Dec 2025 | 7,389 | — | — | 31 |
| Nov 2025 | 7,435 | — | — | 30 |
| Oct 2025 | 7,654 | — | — | 31 |
| Sep 2025 | 7,450 | — | — | 30 |
| Aug 2025 | 7,589 | — | — | 31 |
| Jul 2025 | 7,589 | — | — | 31 |
| Jun 2025 | 6,810 | — | — | 30 |
| May 2025 | 6,949 | — | — | 31 |
| Apr 2025 | 5,750 | — | — | 30 |
| Mar 2025 | 6,789 | — | — | 31 |
| Feb 2025 | 5,920 | — | — | 28 |
| Jan 2025 | 6,789 | — | — | 31 |
| Dec 2024 | 6,789 | — | — | 31 |
| Nov 2024 | 6,570 | — | — | 30 |
| Oct 2024 | 6,789 | — | — | 31 |
| Sep 2024 | 6,570 | — | — | 30 |
| Aug 2024 | 6,789 | — | — | 31 |
| Jul 2024 | 6,789 | — | — | 31 |
| Jun 2024 | 6,570 | — | — | 30 |
| May 2024 | 6,789 | — | — | 31 |
| Apr 2024 | 6,570 | — | — | 30 |
| Mar 2024 | 6,789 | — | — | 31 |
| Feb 2024 | 6,132 | — | — | 29 |
| Jan 2024 | 6,789 | — | — | 31 |
| Dec 2023 | 6,789 | — | — | 31 |
| Nov 2023 | 6,570 | — | — | 30 |
| Oct 2023 | 6,789 | — | — | 31 |
| Sep 2023 | 6,570 | — | — | 30 |
| Aug 2023 | 6,789 | — | — | 31 |
| Jul 2023 | 6,789 | — | — | 31 |
| Jun 2023 | 6,570 | — | — | 30 |
| May 2023 | 6,789 | — | — | 31 |
| Apr 2023 | 6,570 | — | — | 30 |
| Mar 2023 | 6,789 | — | — | 31 |
| Feb 2023 | 6,132 | — | — | 28 |
| Jan 2023 | 6,789 | — | — | 31 |
| Dec 2022 | 2,759 | 0 | 0 | 31 |
| Nov 2022 | 2,670 | 0 | 0 | 30 |
| Oct 2022 | 2,759 | 0 | 0 | 31 |
| Sep 2022 | 2,670 | 0 | 0 | 30 |
| Aug 2022 | 2,759 | 0 | 0 | 31 |
| Jul 2022 | 2,759 | 0 | 0 | 31 |
| Jun 2022 | 2,670 | 0 | 0 | 30 |
| May 2022 | 2,852 | 0 | 0 | 31 |
| Apr 2022 | 2,612 | 0 | 0 | 30 |
| Mar 2022 | 2,852 | 0 | 0 | 31 |
| Feb 2022 | 2,438 | 0 | 0 | 28 |
| Jan 2022 | 2,852 | 0 | 0 | 31 |
| Dec 2021 | 2,496 | 0 | 0 | 31 |
| Nov 2021 | 2,415 | 0 | 0 | 30 |
| Oct 2021 | 2,496 | 0 | 0 | 31 |
| Sep 2021 | 2,415 | 0 | 0 | 30 |
| Aug 2021 | 2,496 | 0 | 0 | 31 |
| Jul 2021 | 2,496 | 0 | 0 | 31 |
| Jun 2021 | 2,415 | 0 | 0 | 30 |
| May 2021 | 2,496 | 0 | 0 | 31 |
| Apr 2021 | 2,415 | 0 | 0 | 30 |
| Mar 2021 | 2,496 | 0 | 0 | 31 |
| Feb 2021 | 2,254 | 0 | 0 | 28 |
| Jan 2021 | 2,496 | 0 | 0 | 31 |
A dash is a month the well filed with no figure in that column.
Formation tops
Kansas records 6 formations for this well, shallowest first.
| Formation | Top (ft) | Base (ft) |
|---|---|---|
| Anhydrite | 1,678 | 1,711 |
| Heebner | 3,355 | — |
| Lansing-Kansas City | 3,400 | 3,601 |
| Stark Shale | 3,573 | — |
| Marmaton | 3,636 | — |
| Arbuckle | 3,747 | — |
A dash is a formation Kansas records for this well without a depth. In the base column a dash is also a depth Kansas’s sources record differently from one another.
Location
39.306362, -99.712242
39.30636, -99.71224 · Surface location as filed with Kansas⌘ or Ctrl + scroll to zoom
Every well in Graham County, Kansas
Kansas state record, from KS_wells_ks_wells.parquet. Corpus built 2026-09-11.