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HISTORY OF PIONEER REFINERY
Standard drilled the first commercial oil weil in California in
the Pico Canyon oilfield. Mentryvilie became the town where
the oil was produced and the workers lived.
Pioneer Refinery was built in 1876 to process this oil. Five miles
from _ Mentryville this location was chosen because it had a source
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of water.
The refinery was the first commercial oil refinery in California,
and is the oldest refinery in the country, still standing.
Standard Oil fully restored the refinery in 1930 and opened it to
the public. Chevron Corporation donated the site to the City of
Santa Clarita in 1998.
Chevron
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