Yost-3A 1
API 15069202700000 · Gray County, Kansas · WILDCAT field
Plugged and AbandonedPlugged 1999-09-21
API
15069202700000
Operator
Ritchie Exploration, Inc.
County
Gray
Field
WILDCAT
Location
Permit
31-AUG-1999
Spudded
1999-09-10
Completed
1999-09-21
Plugged
1999-09-21
Measured depth
5,280 ft
Formation tops
Kansas records 74 formations for this well, shallowest first.
| Formation | Top (ft) | Base (ft) | Picks |
|---|---|---|---|
| Blaine Formation | 1,183 | 1,235 | 1 |
| Cedar Hills Sandstone Formation | 1,296 | 1,450 | 1 |
| Stone Corral Formation | 1,762 | 1,827 | 2 |
| Wellington Formation | 2,236 | — | 1 |
| Hollenberg Limestone Member | 2,684 | — | 1 |
| Chase Group | 2,713 | — | 1 |
| Herington Limestone Member | 2,713 | — | 1 |
| Paddock Shale Member | 2,730 | — | 1 |
| Krider Limestone Member | 2,735 | — | 1 |
| Odell Shale Formation | 2,765 | — | 1 |
| Winfield Limestone Formation | 2,785 | — | 1 |
| Gage Shale Member | 2,812 | — | 1 |
| Towanda Limestone Member | 2,834 | 2,879 | 1 |
| Fort Riley Limestone Member | 2,889 | 2,921 | 1 |
| Florence Limestone Member | 2,934 | — | 1 |
| Matfield Shale Formation | 2,964 | — | 1 |
| Wreford Limestone Formation | 2,982 | — | 1 |
| Council Grove Group | 3,018 | — | 1 |
| Speiser Shale Formation | 3,018 | — | 1 |
| Funston Formation | 3,031 | — | 1 |
| Blue Rapids Shale Formation | 3,060 | — | 1 |
| Crouse Limestone Formation | 3,074 | — | 1 |
| Easly Creek Shale Formation | 3,090 | — | 1 |
| Middleburg Limestone Member | 3,101 | — | 1 |
| Hooser Shale Member | 3,118 | — | 1 |
| Eiss Limestone Member | 3,121 | — | 1 |
| Stearns Shale Formation | 3,133 | — | 1 |
| Morrill Limestone Member | 3,138 | — | 1 |
| Florena Shale Member | 3,150 | — | 1 |
| Cottonwood Limestone Member | 3,152 | — | 1 |
| Eskridge Shale Formation | 3,194 | — | 1 |
| Neva Limestone Member | 3,216 | — | 1 |
| Roca Shale Formation | 3,274 | — | 1 |
| Howe Limestone Member | 3,294 | — | 1 |
| Johnson Shale Formation | 3,318 | — | 1 |
| Long Creek Limestone Member | 3,327 | — | 1 |
| Onaga Shale Formation | 3,400 | — | 1 |
| Wabaunsee Group | 3,418–3,470 | — | 3 |
| Root Shale Formation | 3,538 | — | 1 |
| Stotler Limestone Formation | 3,574 | — | 1 |
| Shawnee Group | 3,794 | — | 1 |
| Topeka Limestone Formation | 3,794 | — | 1 |
| Heebner Shale Member | 4,210 | — | 1 |
| Toronto Limestone Member | 4,227 | — | 1 |
| Iatan Limestone Member | 4,268 | — | 1 |
| Lansing Group | 4,302 | — | 2 |
| Iola Limestone Formation | 4,451 | — | 1 |
| Muncie Creek Shale Member | 4,487 | — | 1 |
| Dewey Limestone Formation | 4,492 | 4,514 | 1 |
| Dennis Limestone Formation | 4,547 | — | 1 |
| Stark Shale Member | 4,599 | — | 1 |
| Swope Limestone Formation | 4,605 | — | 1 |
| Hushpuckney Shale Member | 4,644 | — | 1 |
| Hertha Limestone Formation | 4,654 | — | 1 |
| Mound City Shale Member | 4,693 | — | 1 |
| Exline Limestone Member | 4,705 | — | 1 |
| Pleasanton Group | 4,761 | — | 1 |
| Marmaton Group | 4,778 | — | 1 |
| Altamont Limestone Formation | 4,808 | — | 1 |
| Pawnee Limestone Formation | 4,834 | — | 1 |
| Fort Scott Limestone Formation | 4,868 | — | 1 |
| Little Osage Shale Member | 4,891 | — | 1 |
| Cherokee Group | 4,911 | — | 1 |
| Excello Shale Member | 4,911 | — | 1 |
| Verdigris Limestone Member | 4,951 | — | 1 |
| Atoka Limestone Bed | 4,986 | — | 1 |
| Atokan Stage | 5,031 | — | 1 |
| Middle Morrowan Limestone Bed | 5,068 | — | 1 |
| Upper Kearny Member | 5,068 | — | 1 |
| Meramecian Stage | 5,078 | — | 1 |
| Mississippian System | 5,078 | — | 1 |
| Ste. Genevieve Limestone Formation | 5,078 | — | 1 |
| St. Louis Limestone Formation | 5,121–5,200 | — | 3 |
| Salem Limestone Formation | 5,250 | — | 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
37.644168, -100.476535
37.64417, -100.47653 · Surface location as filed with Kansas⌘ or Ctrl + scroll to zoom
Every well in Gray County, Kansas
Kansas state record, from KS_wells_ks_wells.parquet. Corpus built 2026-09-11.