The Triple-A Texas Weekend Gas Watch says the statewide average gas price in Texas is $2.99 a gallon for regular unleaded. That price is down five-cents from a week ago, and is a $1.19 more than a year ago. The national average is $3.40. Demand is high and supply is tight, but crude prices are fluctuating, putting a downward pressure on gas prices. The average price at the pump in San Antonio is $2.85.