Rowell Ranch

Historical marker location:

9711 Dublin Canyon Road, Castro Valley, California

( Marker can be reached from Dublin Canyon Road near Schaefer Ranch Road, on the right when traveling east.)

Marker installed: 1995

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.