Drone attacks on two critical production facilities in Saudi Arabia wiped out over 5% of the world’s oil supply in one go, eliminating the spare capacity of the entire globe. The attacks, which targeted an oil processing facility at Abqaiq and the nearby Khurais oil field knocked out 5.7 million barrels of daily crude production, a whopping 50% of Saudi Arabia’s entire oil output. “This incident effectively eliminates the world’s spare capacity,” said Sarah Cottle, global head of market insight at S&P Global Platts. The attacks led at one point to oil prices spiking by 19%, the biggest leap since...