CALLAHAN 'A' 1
API 15129212760000 · Morton County, Kansas · RICHFIELD field
Recompleted
API
15129212760000
Operator
Anadarko Petroleum Corporation
County
Morton
Field
RICHFIELD
Location
Permit
26-APR-1994
Spudded
1994-05-03
Completed
1994-06-22
Measured depth
6,036 ft
Formation tops
Kansas records 74 formations for this well, shallowest first.
| Formation | Top (ft) | Base (ft) | Picks |
|---|---|---|---|
| Hutchinson Salt Member | 2,067 | — | 1 |
| Hollenberg Limestone Member | 2,235 | — | 1 |
| Chase Group | 2,270 | — | 1 |
| Herington Limestone Member | 2,270 | — | 1 |
| Paddock Shale Member | 2,277 | — | 1 |
| Krider Limestone Member | 2,281 | — | 1 |
| Odell Shale Formation | 2,310 | — | 1 |
| Winfield Limestone Formation | 2,334 | — | 1 |
| Gage Shale Member | 2,375 | — | 1 |
| Towanda Limestone Member | 2,403 | 2,424 | 1 |
| Fort Riley Limestone Member | 2,458 | 2,503 | 1 |
| Florence Limestone Member | 2,503 | — | 1 |
| Matfield Shale Formation | 2,520 | — | 1 |
| Wreford Limestone Formation | 2,544 | — | 1 |
| Council Grove Group | 2,560 | — | 1 |
| Speiser Shale Formation | 2,560 | — | 1 |
| Funston Formation | 2,588 | — | 1 |
| Blue Rapids Shale Formation | 2,624 | — | 1 |
| Crouse Limestone Formation | 2,649 | — | 1 |
| Easly Creek Shale Formation | 2,661 | — | 1 |
| Middleburg Limestone Member | 2,677 | — | 1 |
| Hooser Shale Member | 2,683 | — | 1 |
| Eiss Limestone Member | 2,698 | — | 1 |
| Stearns Shale Formation | 2,702 | — | 1 |
| Morrill Limestone Member | 2,712 | — | 1 |
| Florena Shale Member | 2,717 | — | 1 |
| Cottonwood Limestone Member | 2,729 | — | 1 |
| Eskridge Shale Formation | 2,740 | — | 1 |
| Neva Limestone Member | 2,769 | — | 1 |
| Roca Shale Formation | 2,804 | — | 1 |
| Howe Limestone Member | 2,821 | — | 1 |
| Johnson Shale Formation | 2,844 | — | 1 |
| Long Creek Limestone Member | 2,868 | — | 1 |
| Janesville Shale Formation | 2,872 | — | 1 |
| Falls City Limestone Formation | 2,908 | — | 1 |
| Onaga Shale Formation | 2,954 | — | 1 |
| Wabaunsee Group | 2,992–3,054 | — | 3 |
| Root Shale Formation | 3,126 | — | 1 |
| Stotler Limestone Formation | 3,132 | — | 1 |
| Red Shale Bed | 3,238 | — | 1 |
| Severy Shale Formation | 3,300 | — | 1 |
| Shawnee Group | 3,304 | — | 1 |
| Topeka Limestone Formation | 3,304 | — | 1 |
| Heebner Shale Member | 3,711 | — | 1 |
| Toronto Limestone Member | 3,728 | — | 1 |
| Iatan Limestone Member | 3,767 | — | 1 |
| Lansing Group | 3,816 | — | 1 |
| Iola Limestone Formation | 4,031 | — | 1 |
| Muncie Creek Shale Member | 4,073 | — | 1 |
| Dewey Limestone Formation | 4,080 | — | 1 |
| Dennis Limestone Formation | 4,191 | — | 1 |
| Stark Shale Member | 4,224 | — | 1 |
| Swope Limestone Formation | 4,250 | — | 1 |
| Hushpuckney Shale Member | 4,273 | — | 1 |
| Hertha Limestone Formation | 4,294 | — | 1 |
| Mound City Shale Member | 4,315 | — | 1 |
| Exline Limestone Member | 4,377 | — | 1 |
| Pleasanton Group | 4,425 | — | 1 |
| Marmaton Group | 4,443 | — | 1 |
| Altamont Limestone Formation | 4,495 | — | 1 |
| Pawnee Limestone Formation | 4,538 | — | 1 |
| Fort Scott Limestone Formation | 4,603 | — | 1 |
| Little Osage Shale Member | 4,642 | — | 1 |
| Cherokee Group | 4,668 | — | 1 |
| Excello Shale Member | 4,668 | — | 1 |
| Atoka Shale Bed | 4,979 | — | 1 |
| Upper Kearny Member | 5,088 | — | 2 |
| Middle Morrowan Limestone Bed | 5,358 | — | 1 |
| Chesteran Stage | 5,578 | — | 1 |
| Mississippian System | 5,578 | — | 1 |
| Meramecian Stage | 5,613 | — | 1 |
| Ste. Genevieve Limestone Formation | 5,613 | — | 1 |
| St. Louis Limestone Formation | 5,747–5,780 | — | 2 |
| Salem Limestone Formation | 5,902 | — | 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. 2 formations were picked at more than one depth by different Kansas sources, and their range is shown rather than one of the answers.
Location
37.225233, -101.678199
37.22523, -101.67820 · Surface location as filed with Kansas⌘ or Ctrl + scroll to zoom
Every well in Morton County, Kansas
Kansas state record, from KS_wells_ks_wells.parquet. Corpus built 2026-09-11.