Gas prices are continuing their plunge across Louisiana and the nation today. Triple-A is reporting the statewide average off another half-cent to just under three-oh-two a gallon. Meanwhile, the national average has dipped below three-16 a gallon. Lafayette motorists are still paying the most in the state at three-oh-three a gallon. Prices in Shreveport have already dipped below the three-dollar mark and are currently holding at two-99 a gallon.