Global oil inventories are fast approaching a critical point, with Asia the first facing “minimum operational levels” and Europe close behind. This is the latest in a growing series of warnings from industry experts about the state of oil supply and the prospects of a severe shortage. It seems the world is running out of time to avert a much bigger crisis than we already have. Asia is already struggling with supply, Jeff Currie, Senior Advisor at the Carlyle Group, told CNBC this week. Speaking on the sidelines of an industry event…