Shrack 1
API 15175000360000 · Seward County, Kansas · THREE STAR field
Producing
API
15175000360000
Operator
Edison Operating Company LLC
County
Seward
Field
THREE STAR
Location
Permit
25-NOV-1959
Spudded
1959-12-23
Completed
1960-03-02
Measured depth
6,248 ft
Formation tops
Kansas records 68 formations for this well, shallowest first.
| Formation | Top (ft) | Base (ft) | Picks |
|---|---|---|---|
| Wellington Formation | 2,085 | — | 1 |
| Hollenberg Limestone Member | 2,620 | — | 1 |
| Chase Group | 2,647 | — | 1 |
| Herington Limestone Member | 2,647 | — | 1 |
| Paddock Shale Member | 2,656 | — | 1 |
| Krider Limestone Member | 2,672 | — | 1 |
| Odell Shale Formation | 2,728 | — | 1 |
| Winfield Limestone Formation | 2,738 | — | 1 |
| Gage Shale Member | 2,789 | — | 1 |
| Towanda Limestone Member | 2,803 | 2,858 | 1 |
| Fort Riley Limestone Member | 2,860 | 2,926 | 1 |
| Florence Limestone Member | 2,926 | — | 1 |
| Matfield Shale Formation | 2,960 | — | 1 |
| Wreford Limestone Formation | 2,974 | — | 1 |
| Council Grove Group | 3,011 | — | 1 |
| Speiser Shale Formation | 3,011 | — | 1 |
| Funston Formation | 3,030 | — | 1 |
| Blue Rapids Shale Formation | 3,080 | — | 1 |
| Crouse Limestone Formation | 3,094 | — | 1 |
| Easly Creek Shale Formation | 3,108 | — | 1 |
| Middleburg Limestone Member | 3,126 | — | 1 |
| Hooser Shale Member | 3,134 | — | 1 |
| Eiss Limestone Member | 3,150 | — | 1 |
| Stearns Shale Formation | 3,163 | — | 1 |
| Morrill Limestone Member | 3,171 | — | 1 |
| Florena Shale Member | 3,200 | — | 1 |
| Cottonwood Limestone Member | 3,206 | — | 1 |
| Eskridge Shale Formation | 3,253 | — | 1 |
| Neva Limestone Member | 3,304 | — | 1 |
| Roca Shale Formation | 3,366 | — | 1 |
| Howe Limestone Member | 3,390 | — | 1 |
| Johnson Shale Formation | 3,404 | — | 1 |
| Long Creek Limestone Member | 3,431 | — | 1 |
| Wabaunsee Group | 3,523–3,566 | — | 3 |
| Root Shale Formation | 3,709 | — | 1 |
| Stotler Limestone Formation | 3,713 | — | 1 |
| Heebner Shale Member | 4,367 | — | 1 |
| Toronto Limestone Member | 4,395 | — | 1 |
| Iatan Limestone Member | 4,468 | — | 1 |
| Lansing Group | 4,550 | — | 1 |
| Iola Limestone Formation | 4,789 | — | 1 |
| Muncie Creek Shale Member | 4,812 | — | 1 |
| Dewey Limestone Formation | 4,833 | — | 1 |
| Dennis Limestone Formation | 4,936 | — | 1 |
| Stark Shale Member | 5,034 | — | 1 |
| Swope Limestone Formation | 5,042 | — | 1 |
| Hushpuckney Shale Member | 5,099 | — | 1 |
| Hertha Limestone Formation | 5,105 | — | 1 |
| Mound City Shale Member | 5,166 | — | 1 |
| Pleasanton Group | 5,228 | — | 1 |
| Marmaton Group | 5,243 | — | 1 |
| Altamont Limestone Formation | 5,290 | — | 1 |
| Pawnee Limestone Formation | 5,342 | — | 1 |
| Fort Scott Limestone Formation | 5,400 | — | 1 |
| Little Osage Shale Member | 5,469 | — | 1 |
| Cherokee Group | 5,521 | — | 1 |
| Excello Shale Member | 5,521 | — | 1 |
| Atokan Stage | 5,675 | — | 1 |
| Atoka Shale Bed | 5,712 | — | 1 |
| Middle Morrowan Limestone Bed | 5,867–5,947 | — | 3 |
| Upper Kearny Member | 5,867 | — | 1 |
| Middle Morrowan Sandstone Bed | 6,046 | 6,068 | 1 |
| Mississippian System | 6,050–6,068 | — | 2 |
| Chesteran Zone D Bed | 6,068–6,150 | 6,131 | 2 |
| Chesteran Zone C Bed | 6,131 | 6,241 | 1 |
| Chesteran Stage | 6,150 | — | 1 |
| Chesteran Zone B Bed | 6,242 | — | 1 |
| Chesteran Zone A Bed | — | — | 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. 4 formations were picked at more than one depth by different Kansas sources, and their range is shown rather than one of the answers.
Location
37.036731, -100.819535
37.03673, -100.81954 · 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.