Los Angeles City Oil Field, Los Angeles, California, United States

Oil in the field is generally heavy, with API gravity averaging about 14, and ranging overall from 12 to 20. An early assessment by Paul Prutzman (1913) rated the quality of the oil from the field as low, due to the high sulfur content and absence of light fractions suitable for refining. The main use for oil taken from the field during the first decades of the 20th century was fuel oil, and it was also sprayed onto the young city's dirt roads to settle the dust.
History, production, and operations