The Gulf Coast is now the only region where regular gas averages under $4, at $3.97 a gallon
Gasoline prices no longer move together across the country the way they once did. In the week ending Sept. 21, 2026, the Gulf Coast was the only one of the five regions the federal government tracks where regular gasoline averaged under $4 a gallon, according to the U.S. Energy Information Administration. Every other region sat…