The longtime king of Saudi Arabia, Abdullah bin Abdulaziz, passed away on Friday. But the death of the 90-year-old monarch didn’t seem to come as much of a shock to the Saudi establishment. When royal officials acknowledged Abdullah’s death, it was also revealed that Crown Prince Salman would succeed his brother. For the time being, the succession process seemed to have preserved stability in the Saudi Kingdom. Within hours, traders who speculated that the new king may take a critical look at Saudi policies, which have allowed crude prices to collapse in recent months, created a rally in the oil...