Canadian crude prices were little changed on Friday following a two-day rally as a wildfire in northern Alberta kept nearly one-half of Canadian oil sands production shuttered, forcing BP’s Canadian unit to warn clients of limited availability of oil through the rest of the month. The massive fire has forced the evacuation of Fort McMurray’s 88,000 residents, as the town, located in the heart of the oil-producing region of the province, has been overwhelmed by flames. On Friday, BP’s Canadian unit declared a so-called force majeure event, telling clients available Canadian crude grades will be reduced during May as a result of the fire. BP did not respond immediately to a request for comment. Oil sands companies have shut about 1 million barrels per day of crude output, […]