With short-term supply disruptions easing, U.S. commuters this summer can expect some of the lowest gas prices in more than a decade, AAA said. The motor club reports a national average retail price for a gallon of regular unleaded gasoline at $2.33 for Tuesday, about 2 percent lower than last week. Tuesday marks the 10th consecutive day for declines in retail gasoline prices. Prices spiked from May because of oil supply disruptions brought on by wildfires in Canada , the top oil exporter to the United States. Retail markets in the Midwest, meanwhile, are skewing the national average higher because of a series of pipeline and refinery issues. Michigan, which is the fifth most expensive market […]