Saudi attorney general says arrests just start of crackdown U.S. crude stockpiles probably fell by 2.45 million barrels Oil traded near the highest level in more than two years as political upheaval in top crude exporter Saudi Arabia reverberated through a market where prices were already elevated by signs of tightening supply. Investors have piled into oil as a shake-up of the ruling elite in OPEC’s biggest producer was seen to consolidate power with Crown Prince Mohammed bin Salman, who backs extending the group’s output cuts aimed at clearing a global glut. The purge also raised concern over instability in the kingdom, supporting a geopolitical-risk premium on crude that’s emerged with heightened tensions surrounding nations such as Iraq and Iran. Oil’s gained more than 20 percent since the beginning of September on signs global supplies are tightening and the Organization of Petroleum Exporting Countries and its allies may prolong […]