KEEFER TRUST 1-2
API 15175209120000 · Seward County, Kansas · IRIS field
Recompleted
API
15175209120000
Operator
First National Oil, Inc.
County
Seward
Field
IRIS
Location
Spudded
1986-08-14
Completed
1986-09-15
Measured depth
6,100 ft
Formation tops
Kansas records 24 formations for this well, shallowest first.
| Formation | Top (ft) | Base (ft) | Picks |
|---|---|---|---|
| Winfield Limestone Formation | 2,674 | — | 1 |
| Council Grove Group | 3,006 | — | 1 |
| Heebner Shale Member | 4,300–4,301 | — | 2 |
| Toronto Limestone Member | 4,324 | — | 1 |
| Lansing Group | 4,444 | — | 1 |
| Iola Limestone Formation | 4,722 | — | 1 |
| Swope Limestone Formation | 4,916 | — | 1 |
| Hertha Limestone Formation | 5,000 | — | 1 |
| Marmaton Group | 5,088 | — | 2 |
| Novinger Limestone Bed | 5,173 | — | 1 |
| Fort Scott Limestone Formation | 5,196 | — | 1 |
| Cherokee Group | 5,263 | — | 1 |
| Excello Shale Member | 5,292 | — | 1 |
| Middle Morrowan Limestone Bed | 5,606–5,607 | — | 2 |
| Upper Kearny Member | 5,606 | — | 1 |
| Keyes Sandstone Bed | 5,665 | — | 1 |
| Morrowan A Sandstone Bed | 5,666 | 5,675 | 1 |
| Chesteran Zone B Bed | 5,675–5,780 | 5,708 | 3 |
| Mississippian System | 5,675–5,676 | — | 2 |
| Chesteran Zone A Bed | 5,708–5,729 | 5,838 | 2 |
| Chesteran Sandstone Upper Bed | 5,743 | — | 1 |
| Meramecian Stage | 5,837–5,838 | — | 2 |
| Ste. Genevieve Limestone Formation | 5,837–5,838 | — | 2 |
| St. Louis Limestone Formation | 5,913–5,960 | — | 3 |
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. 8 formations were picked at more than one depth by different Kansas sources, and their range is shown rather than one of the answers.
Location
37.113822, -100.654589
37.11382, -100.65459 · Surface location as filed with Kansas⌘ or Ctrl + scroll to zoom
Every well in Seward County, Kansas
Kansas state record, from KS_wells_ks_wells.parquet. Corpus built 2026-09-11.