Justice Department investigating oil market trading, sources say

Washington — The Department of Justice is investigating suspicious trading timed to swings in the oil market, according to two sources familiar with the investigation. 

Reuters first reported the trading. The existence of the investigation was first reported by ABC News.

The oil market has been volatile amid the war with Iran. Tehran has effectively closed the strategic Strait of Hormuz to Gulf oil and gas exports, sending prices soaring and forcing nations to scramble for alternative supplies.

The average national price for a gallon of gas Wednesday was $4.51, according to AAA.

This is a developing story and will be updated.