OPEC’s tight grip on global oil production is driving prices to near three-year highs. While the surge has been supported by a rebound of global demand and a shortage of supply as experienced across the energy sector, oil’s ticking clock will create a downward pressure that will soon be insurmountable. The cartel’s burning desire to keep oil prices in the goldilocks region of $70 to $80 per barrel cannot be satisfied forever. On Monday, the benchmark price of Brent crude hit $84.60 per barrel, its highest since October 2018, and over double the price of a year ago. Since the collapse in demand through Covid-19, when prices in several markets even dipped into the negative, a strong rebound in economic…