Conventional wisdom in the industrialized countries is that oil prices can come down only if OPEC increases production. OPEC cut production in March last year, when prices were around $10 a barrel.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/draw-oil-reserves-not-opec
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/international-herald-tribune-bangkok
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy