ETHEL B. SPRING UNIT 1
API 15189204990000 · Stevens County, Kansas · GENTZLER NORTH field
Recompleted
API
15189204990000
Operator
EXXONMOBIL Oil Corp
County
Stevens
Field
GENTZLER NORTH
Location
Spudded
1980-07-03
Completed
1980-10-06
Measured depth
6,250 ft
Formation tops
Kansas records 70 formations for this well, shallowest first.
| Formation | Top (ft) | Base (ft) | Picks |
|---|---|---|---|
| Wellington Formation | 2,220 | — | 1 |
| Hutchinson Salt Member | 2,330 | — | 1 |
| Hollenberg Limestone Member | 2,548 | — | 1 |
| Chase Group | 2,570 | — | 1 |
| Herington Limestone Member | 2,570 | — | 1 |
| Paddock Shale Member | 2,590 | — | 1 |
| Krider Limestone Member | 2,600 | — | 1 |
| Odell Shale Formation | 2,636 | — | 1 |
| Winfield Limestone Formation | 2,646 | — | 1 |
| Gage Shale Member | 2,683 | — | 1 |
| Towanda Limestone Member | 2,705 | 2,752 | 1 |
| Fort Riley Limestone Member | 2,762 | 2,809 | 1 |
| Florence Limestone Member | 2,822 | — | 1 |
| Matfield Shale Formation | 2,831 | — | 1 |
| Wreford Limestone Formation | 2,850 | — | 1 |
| Council Grove Group | 2,874 | — | 1 |
| Speiser Shale Formation | 2,874 | — | 1 |
| Funston Formation | 2,902 | — | 1 |
| Blue Rapids Shale Formation | 2,942 | — | 1 |
| Crouse Limestone Formation | 2,957 | — | 1 |
| Easly Creek Shale Formation | 2,974 | — | 1 |
| Middleburg Limestone Member | 2,985 | — | 1 |
| Hooser Shale Member | 2,995 | — | 1 |
| Eiss Limestone Member | 3,007 | — | 1 |
| Stearns Shale Formation | 3,014 | — | 1 |
| Morrill Limestone Member | 3,022 | — | 1 |
| Florena Shale Member | 3,029 | — | 1 |
| Cottonwood Limestone Member | 3,035 | — | 1 |
| Eskridge Shale Formation | 3,056 | — | 1 |
| Neva Limestone Member | 3,074 | — | 1 |
| Roca Shale Formation | 3,124 | — | 1 |
| Howe Limestone Member | 3,140 | — | 1 |
| Johnson Shale Formation | 3,171 | — | 1 |
| Long Creek Limestone Member | 3,188 | — | 1 |
| Janesville Shale Formation | 3,215 | — | 1 |
| Falls City Limestone Formation | 3,242 | — | 1 |
| Onaga Shale Formation | 3,274 | — | 1 |
| Wabaunsee Group | 3,300–3,358 | — | 3 |
| Root Shale Formation | 3,435 | — | 1 |
| Stotler Limestone Formation | 3,442 | — | 1 |
| Red Shale Bed | 3,578 | — | 1 |
| Severy Shale Formation | 3,660 | — | 1 |
| Shawnee Group | 3,667 | — | 1 |
| Topeka Limestone Formation | 3,667 | — | 1 |
| Heebner Shale Member | 4,112 | — | 1 |
| Toronto Limestone Member | 4,124 | — | 1 |
| Iatan Limestone Member | 4,180 | — | 1 |
| Lansing Group | 4,242 | — | 1 |
| Iola Limestone Formation | 4,518 | — | 1 |
| Muncie Creek Shale Member | 4,562 | — | 1 |
| Dewey Limestone Formation | 4,570 | — | 1 |
| Dennis Limestone Formation | 4,695 | — | 1 |
| Stark Shale Member | 4,786 | — | 1 |
| Swope Limestone Formation | 4,793 | — | 1 |
| Hushpuckney Shale Member | 4,846 | — | 1 |
| Hertha Limestone Formation | 4,856 | — | 1 |
| Pleasanton Group | 4,910 | — | 2 |
| Marmaton Group | 4,928 | — | 1 |
| Fort Scott Limestone Formation | 5,068 | — | 1 |
| Little Osage Shale Member | 5,112 | — | 1 |
| Cherokee Group | 5,139 | — | 1 |
| Middle Morrowan Limestone Bed | 5,618 | — | 1 |
| Upper Kearny Member | 5,618 | — | 1 |
| Keyes Sandstone Bed | 6,025 | — | 1 |
| Lower Morrowan Sandstone Bed | 6,025 | — | 1 |
| Chesteran Stage | 6,066 | — | 1 |
| Mississippian System | 6,066 | — | 1 |
| Meramecian Stage | 6,216 | — | 1 |
| Ste. Genevieve Limestone Formation | 6,216 | — | 1 |
| Lower Kearny Member | — | — | 1 |
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. 1 formation was picked at more than one depth by different Kansas sources, and its range is shown rather than one of the answers.
Location
37.239273, -101.352455
37.23927, -101.35246 · Surface location as filed with Kansas⌘ or Ctrl + scroll to zoom
Every well in Stevens County, Kansas
Kansas state record, from KS_wells_ks_wells.parquet. Corpus built 2026-09-11.