The Del Valle field, located about 40 miles northwest of Los Angeles, California, was discovered by R. E. Havenstrite, operator, September 8, 1940. Production is 33 gravity oil from 300 feet of sand in two zones in the upper 1,200 feet of the Modelo (Miocene). The structure is a southeasterly plunging anticline closed against a fault to the west and probably also by San Gabriel fault which parallels its north flank. It is estimated that the field will produce 75,000 barrels per acre and exceed 500 acres in extent.

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