Juan B. Castro

Historical marker location:

10650 Merritt Street, Castroville, California

( Marker is on Merritt Steet (California Route 183) north of Preston Street, on the right when traveling north.)

Marker installed: 1971

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.