US gasoline prices jumped back to an average of $4 per gallon Monday, according to the AAA motor club, as Iran said it was fighting a "full-scale war" with the United States while both sides intensified…

Global oil prices briefly touched $90 per gallon early on Monday before both countries signaled a willingness to resume talks.

U.S. gas prices have jumped to an average of $4 a gallon again as the U.S. and Iran launch more attacks.

US gas prices hit $4 a gallon amid Iran tensions. Crude oil reaching a new all-time high by September 30 at 4.7% YES.

After declining for weeks, gas prices are rising again.