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Seyler 1 Anderson

API 4001905008 · Butte County, South Dakota · Wildcat field

Plugged and AbandonedDry Hole-Oil and Gas show
API
4001905008
Operator
William Seyler Co.
County
Butte
Field
Wildcat
Location
NWSE Sec 12 Twp 008N Rng 05E
Permit
26

Formation tops

South Dakota records 25 formations for this well, shallowest first.

FormationTop (ft)Age
Pierre Shale220Cretaceous
Niobrara Formation433Cretaceous
Carlile Shale747Cretaceous
Greenhorn Limestone1,090Cretaceous
Belle Fourche Shale1,140Cretaceous
Newcastle Sandstone1,890Cretaceous
Skull Creek Shale1,900Cretaceous
Lakota Formation2,240Cretaceous
Morrison Formation2,450Jurassic
Sundance Formation2,680Triassic
Spearfish Formation3,060Triassic/Permian
Minnekahta Limestone3,500Permian
Opeche Shale3,550Permian
Minnelusa Formation3,620Permian/Pennsylvanian
Red Marker, Minnelusa Formation3,930Permian/Pennsylvanian
Madison Group4,230Mississippian
Mission Canyon Limestone4,565Mississippian
Lodgepole Limestone4,590Mississippian
Three Forks Shale4,650Devonian
Interlake Dolomite4,700Silurian
Stony Mountain Formation4,850Ordovician
Red River Formation4,970Ordovician
Winnipeg Formation5,410Ordovician
Deadwood Formation5,500Ordovician/Cambrian
Precambrian5,760Precambrian

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-Oil and Gas show
Spudded
1949-10-18
Measured depth
5,761 ft
True vertical depth
5,761 ft

Location

44.667181, -103.455797

44.66718, -103.45580 · Surface location as filed with South Dakota

Every well in Butte County, South Dakota

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