Wildfires that have crimped Alberta’s oil sands production for more than a week continue to burn, officials said Monday, dealing another blow to producers already spooked by low crude prices and expected royalty increases. Some 1,400 firefighters in northern Alberta—including hundreds from neighboring provinces—have been working to douse or corral dozens of wildfires which have raged for several days, spread by strong winds and dry underbrush in the boreal forests that dominate the landscape. Of 35 blazes currently being fought, five have yet to be contained, including the largest which has engulfed nearly 80,000 acres in the province’s northeast, said Richard Horne, a spokesman for the Alberta Agriculture and Forestry Ministry. “Our crews are still working around the clock to get the fire under control and build a perimeter,” Mr. Horne said, adding that light rain and milder winds over the weekend helped firefighters extend a fire proof zone […]