The national average price of a gallon of gasoline dropped below $4 on Thursday, according to AAA. Pump prices have been falling for four straight weeks. Since May 21, the national average has dropped from $4.56, the recent peak. On Thursday, AAA said gas had declined to $3.99 and nine-tenths.
The peace deal between the U.S. and Iran has sent oil prices plunging, dragging down gasoline prices. Brent crude, the global oil price benchmark, fell to around $78.45 a barrel on Thursday morning, down from around $112 in the third week in May. West Texas Intermediate, the U.S. benchmark, fell to $75.29, down from $108.
