The Astana Times provides news and information from Kazakhstan and around the world. ASTANA – The Caspian Pipeline Consortium, which exports around 80% of Kazakh oil, has been shut down for a week following Ukrainian drone attacks on July 17 and 19. The recurrent attacks renew questions about the country’s energy security, export dependence and the growing challenge of preserving its balanced foreign policy. Photo credit: cpc.ru The tankers Asia…