Reuters | Oil under $60 beyond 2016 suggests market rethinking shale Reuters NEW YORK The almost 10 percent nosedive in headline oil prices this week has many hallmarks of a shocking but short-lived slump, triggered by a confluence of external events and exacerbated by safety-seeking investors and momentum-chasing traders. US crude falls almost 2 percent on surprise stocks build Why oil could revisit its lows and then some Oil edges up on expected U.S. stock draw; Greece, China worries drag |