Just some fun facts. I was curious about relative size when talking about barrels of oil. The standard petroleum barrel contains 42 US gallons. Using on-line conversion for volume, one foot/acre is 7758 barrels. In other words 7758 barrels of oil would cover one acre 1 foot deep in oil. One square mile is 640 acres X 7758 barrels = 4,965,120 barrels. 15 square miles X 640 acres X 7758 barrels = 74,476,800 barrels. So every extra foot of depth over 15 square miles adds another 74,476,800 barrels. We need an oil deposit 3 miles wide by 5 miles long by 140 feet deep. That's not asking for too much, is it?