Winnebago County, Wisconsin
200px Winnebago County Courthouse
Map of Wisconsin highlighting Winnebago County Location in the state of Wisconsin
Wisconsin's location in the U.S.
Founded	1840
Seat	Oshkosh
Largest city	Oshkosh
Area
• Total	579 sq mi (1,500 km2)
• Land	434 sq mi (1,124 km2)
• Water	144 sq mi (373 km2), 24.9%
Population
• (2010)	166,994
• Density	384/sq mi (148/km²)
Congressional districts	6th, 8th
Time zone	Central: UTC-6/-5
Website	www.co.winnebago.wi.us

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Oil and Gas Activity

Well ID	Municipality	Operator Name	First Permit Date	Spud Date	Unconventional	Horizontal	Producing	Violations