A total of ninety-eight (98) oils representing fifty (50) fields in the Santa Maria, San Joaquin, Cuyama, Salinas and Ventura Basins including the Santa Barbara Channel area were characterized in the Southern California Oil Study. The main objective was to determine the major factors controlling oil quality and to recommend geologic settings favorable for the occurrence of high quality oil in the study area. The ninety-eight (98) oils are from Eocene, Oligocene, Miocene, and Pliocene sandstone and fractured shale reservoirs ranging in depth from 460 feet to 20,270 feet.
