Customers pump gas into their cars at a gas station. (credit: Justin Sullivan/Getty Images)

HOUSTON (AP) – Retail gasoline prices in Texas and nationwide have slipped a penny this week.

AAA Texas on Thursday reported the statewide average price at the pump stood at $3.66 per gallon. Drivers nationwide are paying an average $3.82 per gallon.

Texarkana has the most expensive gasoline in Texas at $3.72 per gallon. The association survey found that the cheapest gasoline statewide is in El Paso, at $3.44 per gallon.

AAA says gasoline prices spiked last week as the Gulf Coast braced for Hurricane Isaac and some refineries shut down. Prices weakened once the market determined Isaac would have a limited impact on long-term production.