Oil prices fell more than 3 percent on Monday after traders took in their stride the impact of wildfires on Canada's oil output and after another inventory build at the U.S. delivery hub for crude futures. The market rallied 2 percent earlier in the session as investors considered the loss of half, or more than 1 million barrels per day (bpd), of Canadian oilsands supply. Almost all of Canada's crude from oilsands is exported to the United States. But with speculators already holding the largest number of wagers for a hike in U.S. crude's West Texas Intermediate futures CLc1 since last summer and near-record high ... (full story)