Jacobs 1-20
API 15175216850000 · Seward County, Kansas · THIRTY-ONE SOUTHWEST field
Plugged and AbandonedPlugged 1998-03-05
API
15175216850000
Operator
Lowry Exploration, Inc.
County
Seward
Field
THIRTY-ONE SOUTHWEST
Location
Permit
19-NOV-1997
Spudded
1998-02-25
Completed
1998-03-05
Plugged
1998-03-05
Measured depth
5,756 ft
Formation tops
Kansas records 71 formations for this well, shallowest first.
| Formation | Top (ft) | Base (ft) | Picks |
|---|---|---|---|
| Stone Corral Formation | — | 1,752 | 1 |
| Wellington Formation | 2,167 | — | 1 |
| Hutchinson Salt Member | 2,359 | — | 1 |
| Hollenberg Limestone Member | 2,632 | — | 1 |
| Chase Group | 2,656 | — | 1 |
| Herington Limestone Member | 2,656 | — | 1 |
| Paddock Shale Member | 2,678 | — | 1 |
| Krider Limestone Member | 2,698 | — | 1 |
| Odell Shale Formation | 2,728 | — | 1 |
| Winfield Limestone Formation | 2,738 | — | 1 |
| Gage Shale Member | 2,766 | — | 1 |
| Towanda Limestone Member | 2,782 | 2,836 | 1 |
| Fort Riley Limestone Member | 2,850 | 2,902 | 1 |
| Matfield Shale Formation | 2,924 | — | 1 |
| Wreford Limestone Formation | 2,940 | — | 1 |
| Council Grove Group | 2,972 | — | 1 |
| Speiser Shale Formation | 2,972 | — | 1 |
| Funston Formation | 2,982 | — | 1 |
| Blue Rapids Shale Formation | 3,023 | — | 1 |
| Crouse Limestone Formation | 3,034 | — | 1 |
| Easly Creek Shale Formation | 3,048 | — | 1 |
| Middleburg Limestone Member | 3,055 | — | 1 |
| Hooser Shale Member | 3,064 | — | 1 |
| Eiss Limestone Member | 3,074 | — | 1 |
| Stearns Shale Formation | 3,084 | — | 1 |
| Morrill Limestone Member | 3,088 | — | 1 |
| Florena Shale Member | 3,115 | — | 1 |
| Cottonwood Limestone Member | 3,122 | — | 1 |
| Eskridge Shale Formation | 3,158 | — | 1 |
| Neva Limestone Member | 3,172 | — | 1 |
| Roca Shale Formation | 3,242 | — | 1 |
| Howe Limestone Member | 3,258 | — | 1 |
| Long Creek Limestone Member | 3,310 | — | 1 |
| Janesville Shale Formation | 3,356 | — | 1 |
| Falls City Limestone Formation | 3,371 | — | 1 |
| Onaga Shale Formation | 3,382 | — | 1 |
| Pennsylvanian System | 3,388 | — | 1 |
| Wabaunsee Group | 3,388–3,447 | — | 3 |
| Root Shale Formation | 3,527 | — | 1 |
| Stotler Limestone Formation | 3,532 | — | 1 |
| Red Shale Bed | 3,680 | — | 1 |
| Severy Shale Formation | 3,774 | — | 1 |
| Shawnee Group | 3,778 | — | 1 |
| Topeka Limestone Formation | 3,778 | — | 1 |
| Heebner Shale Member | 4,212 | — | 1 |
| Toronto Limestone Member | 4,232 | — | 1 |
| Iatan Limestone Member | 4,286 | — | 1 |
| Lansing Group | 4,286–4,323 | — | 3 |
| Iola Limestone Formation | 4,490 | — | 1 |
| Muncie Creek Shale Member | 4,552 | — | 1 |
| Dewey Limestone Formation | 4,588 | — | 1 |
| Stark Shale Member | 4,764 | — | 1 |
| Swope Limestone Formation | 4,778 | — | 1 |
| Hushpuckney Shale Member | 4,832 | — | 1 |
| Hertha Limestone Formation | 4,845 | — | 1 |
| Mound City Shale Member | 4,881 | — | 1 |
| Exline Limestone Member | 4,916 | — | 1 |
| Pleasanton Group | 4,942 | — | 1 |
| Marmaton Group | 4,952 | — | 1 |
| Fort Scott Limestone Formation | 5,064 | — | 1 |
| Little Osage Shale Member | 5,101 | — | 1 |
| Cherokee Group | 5,120 | — | 1 |
| Excello Shale Member | 5,120 | — | 1 |
| Middle Morrowan Limestone Bed | 5,437 | — | 1 |
| Upper Kearny Member | 5,437 | — | 1 |
| Chesteran Stage | 5,502 | — | 1 |
| Chesteran Zone B Bed | 5,502–5,620 | 5,628 | 2 |
| Mississippian System | 5,502 | — | 1 |
| Chesteran Zone A Bed | 5,525 | — | 1 |
| Meramecian Stage | 5,660 | — | 1 |
| Ste. Genevieve Limestone Formation | 5,660 | — | 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. 3 formations were picked at more than one depth by different Kansas sources, and their range is shown rather than one of the answers.
Location
37.339453, -100.721742
37.33945, -100.72174 · 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.