We heard a joke the other day about an exhausted father and chief executive who is on the verge of a complete breakdown and goes to the doctor for an assessment. The doctor calls the wife in to have a private word, and tells her that her husband must have complete relaxation, no arguments, no stress, and plenty of comfort food and physical comfort and sex, or he may indeed die. The wife leaves the doctor and gets into the car with her husband, and he says “What did he say?” and she turns to him and says, “I’m very sorry, but the doctor says you’re going to die.” The oil industry is in a similar position. Oil is measure…