Retail gasoline prices in the United States are on the rise ahead of the last major travel holiday season of the year, motor club AAA reported. The national average retail price for a gallon of regular unleaded gasoline for Tuesday was $2.22 per gallon, about 1.8 percent higher than this time last week. That contrasts with a recent trend set with price declines over 53 of 54 days earlier this year, AAA reported. In its weekly market report , AAA found that regional refinery issues, the potential for inclement weather in the oil-rich Gulf of Mexico and higher crude oil prices were to blame for the spike in prices. As usual, the Great Lakes states are experiencing the highest degree […]