Shares of energy companies fell alongside oil futures.

New York-traded futures slid 3.9% to $70.34 a barrel, the lowest since Feb. 27, the day before the commencement of war in Iran.

EG Group, operator of gas stations under brands such as Cumberland Farms, filed confidentially for an initial public offering in the U.S., as it considers targeting a valuation of around $9 billion.

President Trump said he instructed the Justice Department to look into major oil companies, accusing them of "gouging" customers by not lowering gasoline pump prices in line with falling crude costs.

Write to Rob Curran at rob.curran@dowjones.com