NELL 'A' 1
API 15189204340000 · Stevens County, Kansas · Gentzler field
Recompleted
API
15189204340000
Operator
unavailable
County
Stevens
Field
Gentzler
Location
Spudded
1978-11-09
Completed
1979-02-27
Measured depth
6,210 ft
Formation tops
Kansas records 76 formations for this well, shallowest first.
| Formation | Top (ft) | Base (ft) | Picks |
|---|---|---|---|
| Stone Corral Formation | — | 1,708 | 2 |
| Wellington Formation | 2,189 | — | 1 |
| Hutchinson Salt Member | 2,297 | — | 1 |
| Hollenberg Limestone Member | 2,513 | — | 1 |
| Chase Group | 2,541 | — | 1 |
| Herington Limestone Member | 2,541 | — | 1 |
| Paddock Shale Member | 2,567 | — | 1 |
| Krider Limestone Member | 2,570 | — | 1 |
| Odell Shale Formation | 2,611 | — | 1 |
| Winfield Limestone Formation | 2,626–2,631 | 2,631 | 4 |
| Gage Shale Member | 2,661 | — | 1 |
| Towanda Limestone Member | 2,680 | 2,730 | 1 |
| Fort Riley Limestone Member | 2,738 | 2,787 | 1 |
| Florence Limestone Member | 2,789 | — | 1 |
| Matfield Shale Formation | 2,811 | — | 1 |
| Wreford Limestone Formation | 2,829 | — | 1 |
| Council Grove Group | 2,852 | — | 2 |
| Speiser Shale Formation | 2,852 | — | 1 |
| Funston Formation | 2,868 | — | 1 |
| Blue Rapids Shale Formation | 2,921 | — | 1 |
| Crouse Limestone Formation | 2,930 | — | 1 |
| Easly Creek Shale Formation | 2,947 | — | 1 |
| Middleburg Limestone Member | 2,956 | — | 1 |
| Hooser Shale Member | 2,966 | — | 1 |
| Eiss Limestone Member | 2,978 | — | 1 |
| Stearns Shale Formation | 2,984 | — | 1 |
| Morrill Limestone Member | 2,992 | — | 1 |
| Florena Shale Member | 2,999 | — | 1 |
| Cottonwood Limestone Member | 3,002 | — | 1 |
| Eskridge Shale Formation | 3,024 | — | 1 |
| Neva Limestone Member | 3,040 | — | 1 |
| Roca Shale Formation | 3,090 | — | 1 |
| Howe Limestone Member | 3,105 | — | 1 |
| Johnson Shale Formation | 3,136 | — | 1 |
| Long Creek Limestone Member | 3,155 | — | 1 |
| Janesville Shale Formation | 3,181 | — | 1 |
| Falls City Limestone Formation | 3,211 | — | 1 |
| Wabaunsee Group | 3,270–3,328 | — | 4 |
| Root Shale Formation | 3,356–3,430 | — | 2 |
| Stotler Limestone Formation | 3,440 | — | 1 |
| Red Shale Bed | 3,550 | — | 1 |
| Severy Shale Formation | 3,621 | — | 1 |
| Shawnee Group | 3,635 | — | 1 |
| Topeka Limestone Formation | 3,635 | — | 1 |
| Heebner Shale Member | 4,086 | — | 1 |
| Toronto Limestone Member | 4,106 | — | 1 |
| Iatan Limestone Member | 4,158 | — | 1 |
| Lansing Group | 4,199–4,210 | — | 3 |
| Iola Limestone Formation | 4,446 | — | 1 |
| Muncie Creek Shale Member | 4,490 | — | 1 |
| Dewey Limestone Formation | 4,499 | 4,530 | 1 |
| Cherryvale Shale Formation | 4,582 | — | 1 |
| Dennis Limestone Formation | 4,636 | — | 1 |
| Stark Shale Member | 4,721 | — | 1 |
| Swope Limestone Formation | 4,728 | — | 1 |
| Hushpuckney Shale Member | 4,757 | — | 1 |
| Hertha Limestone Formation | 4,760 | — | 1 |
| Mound City Shale Member | 4,812 | — | 1 |
| Exline Limestone Member | 4,818 | — | 1 |
| Pleasanton Group | 4,895 | — | 1 |
| Marmaton Group | 4,911–4,912 | — | 2 |
| Altamont Limestone Formation | 4,940 | — | 1 |
| Fort Scott Limestone Formation | 5,084 | — | 1 |
| Cherokee Group | 5,132–5,176 | — | 2 |
| Little Osage Shale Member | 5,132 | — | 1 |
| Excello Shale Member | 5,176 | — | 1 |
| Verdigris Limestone Member | 5,276 | — | 1 |
| Atoka Limestone Bed | 5,378 | — | 1 |
| Atoka Shale Bed | 5,457 | — | 1 |
| Upper Kearny Member | 5,650 | — | 1 |
| Middle Morrowan Limestone Bed | 5,652–5,997 | — | 3 |
| Keyes Sandstone Bed | 6,037–6,108 | — | 2 |
| Lower Morrowan Sandstone Bed | 6,064 | — | 1 |
| Chesteran Stage | 6,142 | — | 2 |
| Mississippian System | 6,142 | — | 2 |
| 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. 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
37.166577, -101.390348
37.16658, -101.39035 · 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.