President Trump has ordered the Department of Justice to investigate possible price gouging at fuel stations, arguing that oil companies are not lowering pump prices fast enough despite sharply falling crude oil costs. In a social media post, Trump said customers are being gouged and demanded gasoline prices decline more quickly. The national average for a gallon of regular fell by $0.141 last week to $3.85 as of Monday, according to GasBuddy data cited by Reuters, amid a six-week slide in gasoline prices. Crude oil benchmarks have dropped to four-month lows, with Brent crude trading at $76.46 per barrel and West Texas Intermediate at $72.61 per barrel, driven by optimism over easing U.S.-Iran tensions and increased tanker traffic through the Strait of Hormuz.