How outraged should we be that Saudi Aramco has reported a world-record quarterly profit of $48 billion, representing a giant bonus from the global oil price spike provoked by the war in Ukraine? Well, that’s how the cookie crumbles when you’re sitting on oil reserves so abundant and so easily accessible that your marginal cost of producing the next barrel is less than $10 when the market price has just doubled to $130 – as it did in March, before settling back to around $95 today.