Placid 16-8 State

API 4004720121 · Fall River County, South Dakota · Wildcat field

Plugged and AbandonedDry Hole
API
4004720121
Operator
Placid Oil Co.
County
Fall River
Field
Wildcat
Permit
1077

Formation tops

South Dakota records 14 formations for this well, shallowest first.

FormationTop (ft)Age
Fall River Sandstone780Cretaceous
Lakota Formation1,010Cretaceous
Morrison Formation1,159Jurassic
Sundance Formation1,281Triassic
Spearfish Formation1,585Triassic/Permian
Goose Egg Formation1,745Triassic/Permian
Minnekahta Limestone2,030Permian
Opeche Shale2,070Permian
Minnelusa Formation2,215Permian/Pennsylvanian
Red Marker, Minnelusa Formation2,603Permian/Pennsylvanian
1st Leo Sandstone, Minnelusa Formation2,621Pennsylvanian
2nd Leo Sandstone, Minnelusa Formation2,730Pennsylvanian
3rd Leo Sandstone, Minnelusa Formation2,833Pennsylvanian
4th Leo Sandstone, Minnelusa Formation2,946Pennsylvanian

A dash is a formation South Dakota records for this well without a depth.

Completion

South Dakota files 1 completion report for this well.

Vertical Well

Plugged and AbandonedDry Hole
Spudded
1981-05-13
Measured depth
3,347 ft
True vertical depth
3,347 ft

Location

43.269438, -103.879996

43.26944, -103.88000 · Surface location as filed with South Dakota

Every well in Fall River County, South Dakota

South Dakota state record, from SD_wells_SDOILexport_Export__wells_Table_4_Web.parquet. Corpus built 2026-09-11.