ion. 39% 5% 56% OPEC Conventional Unconventional Non-OPEC Conventional 40% 12% 48% US dry gas production Trillion cubic feet per year 30 Hbtory 25 15 Net imports Shale gas 1% 45% Non-associated onshore 8% 10 Non-associated offshore 8% 11% 14% 20% 9% 28% Tight gas 22% 7% 1%