MAYO & SMITH 8-21
API 21059438070000 · Hillsdale County, Michigan
Terminated PermitLocation
API
21059438070000
Operator
MARATHON OIL COMPANY
County
Hillsdale
Location
5S-2W-21
Permit
43807
Permit issued
1990-08-15
Location
42.026540, -84.539440
42.02654, -84.53944 · Surface location as filed with Michigan⌘ or Ctrl + scroll to zoom
Every well in Hillsdale County, Michigan
Michigan state record, from MI_wells_Oil__Gas__and_Mineral_Well_Surface_Hole_Locations.parquet. Corpus built 2026-08-19.