Although it’s the largest exporter of oil in the world and holds about 16% of proven oil reserves globally, the price of oil is proving more of a liability these days than the boon to the Saudi Arabia’s economy that it’s been in the past. Of course, Riyadh itself is partly responsible for that, having insisted that OPEC continue to produce oil at rates that almost ensure that the price of oil will continue to fall—at least until the back of the fracking market is broken. Or at least bent. But that doesn’t mean that it’s relying solely on oil...