Historical Marker
Jefferson Square Park
Historical marker location:
699 Jefferson Street, Oakland, California
( Marker is at the intersection of Jefferson Street and 7th Street, on the right when traveling south on Jefferson Street.)
California was the site of the nation's first successful oil well in 1892. The well was drilled in the city of Los Angeles and produced about 25 barrels of oil a day. Today, California remains a major oil-producing state.