The AAA Texas Weekend Gas Watch says the statewide average gas price in Texas is $2.82 a gallon for regular unleaded. That price is down one-cent from a week ago, and is 93-cents higher than a year ago. The national average is $3.16. Crude oil prices are fluctuating, gas demand rose only slightly, and gas supplies declined a bit but remained stable. The average price at the pump in San Antonio is $2.78.