Oil on the Brain is a smart, surprisingly funny account of the oil industry—the people, economies, and pipelines that bring us petroleum, brilliantly illuminating a world we encounter every day.Americans buy ten thousand gallons of gasoline a second, without giving it much of a thought. Where does all this gas come from? Lisa Margonelli’s desire to learn took her on a one-hundred thousand mile journey from her local gas station to oil fields half a world away.