PIONEER OIL REFINERY
In 1875 the Star Oil Company, one of the predecessors of the Standard Oil Company of California, drilled its first Pico Canyon well, which yielded about one hundred barrels per day. The discovery resulted in the erection of the first commercial oil refinery in California the following year.
Registration Date: 3/6/1935
County: Los Angeles
Site and private plaque at 238 Pine St, Newhall - state plaque at Lang Blvd exit of I-5
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