Numerous other oil fields exist within the region . The Summerland Oil Field , location of the world 's first offshore oil wells into the ocean , is about to the east of the field ; the large Ellwood Oil Field is about to the west . Approximately seven miles to the southeast in the Santa Barbara Channel is the Dos Cuadras Oil Field , source of the 1969 Santa Barbara oil spill
1969 Santa Barbara oil spill
1969 Santa Barbara oil spill
Mesa Oil Field