Saudi Arabia, home to the world’s greatest proven reserves of oil, claims it can double its current production. No mean feat, considering that the roughly 11 million-barrels a day (b/d) that it claims it currently pumps is just about the highest in the desert kingdom’s history. History, in other words, offers no guide to the future on this matter, according to authorities who oversee those reserves. As such, elevating Saudi production to 23 million b/d in the years ahead is well within the country’s capacity, according to Abdallah S. Jum’ah, president and chief executive of Saudi Aramco, the planet’s biggest oil company, albeit one run by a government.