Retail gas prices are forecast to decrease throughout the end of the year. Both oil and gas prices dropped last week after the value of the dollar increased to a two-week high. $3.01 regular gas is the best found in Manchester Tuesday (12/10/12) and the lowest in Tullahoma is $2.99. The value of the dollar increased against the euro after the Labor Department announced the U.S. unemployment rate fell to 7.7 percent in November and Germany cut its economic growth outlook for 2013. A barrel of oil settled Friday at $85.93 on the New York Mercantile Exchange–$2.98 less than the week prior. The national average price of regular unleaded gasoline is $3.35, 4 cents less than last week. Tennessee’s average of $3.13 also decreased 4 cents from last week.