Herndon1 O'Leary
API 4004105159 · Dewey County, South Dakota · Wildcat field
Plugged and AbandonedDry Hole
API
4004105159
Operator
Herndon Drilling Co.
County
Dewey
Field
Wildcat
Location
SESW Sec 13 Twp 015N Rng 23E
Permit
142
Location
45.256877, -101.253774
45.25688, -101.25377 · Surface location as filed with South Dakota⌘ or Ctrl + scroll to zoom
Every well in Dewey County, South Dakota
South Dakota state record, from SD_wells_SDOILexport_Export__wells_Table_4_Web.parquet. Corpus built 2026-08-19.