Photograph of a commemorative plaque on an oil refinery in Newhall, [s.d.]. The large plaque is mounted onto a brick section of the refinery below a sign that reads "Still No.3 Capacity 100 BBLs" and above a sign that says "Fuel Line".; The plaque itself reads "California's First Oil Refinery Operated on a Commercial Scale Erected 1876 Restored by the Standard Oil Company of California in 1930 as a memorial to D. G. Scofield and his associates of the California Star Oil Works Company, a predecessor to the Standard Oil Company of California. In 1875-1876 Mr. Scofield and his associates obtained California's first commercial production of crude petroleum in Pico Canyon six miles from this point and built this refinery for the manufacture of petroleum products".