Original old petroleum magazine vintage article for WILMINGTON OIL of Long Beach, CA.  Another 1.5 billion bbl of oil in Wilmington?  Leonard W. Brock, Long Beach's petroleum-properties administrator says cores reveal oil with gross valve in excess of 3 billion dollars.  Five refineries in the area, operated by Mobile Oil, Shell Oil, Richfield Oil, Union Oil and Texaco Inc.   This 1962 three page oil and gas drilling industry article would display beautifully matted and framed.