SEMINOLE – AAA reported on Sept. 2 that the average price of a gallon of regular unleaded gasoline in Texas increased 2.1 cents from late August to $2.815.The nationwide average rose 3.7 cents from last week to $3.183 per gallon. This week, however, stations in Seminole are running from $2.88 to $2.99 for self-serve, unleaded.Labor Day weekend is the unofficial end of summer, and those who were headed out of town this past weekend paid the price at the gas pump.The majority of stations in Gaines County are priced at $2.88 for unleaded. The average price for regular gas in ...