Or to put it another way, Canada is addicted to the American Oil Dollar. The United States currently receives 99 percent of Canadian crude oil exports. While this accounted for only 7 percent of U.S. daily consumption in 2005, tar sands production and development has grown dramatically in recent years, and more than $100 billion of investment has been announced for development over the next decade. Unfortunately Canada is running out of traditional oil sources and has started to develop the huge tar sands deposits in western Canada.