ExxonMobil and Chevron reported major profit gains as the Middle East conflict disrupted energy supplies and boosted oil company earnings.

ExxonMobil’s second-quarter profits more than doubled to $14.5 billion, while Chevron earned $12.1 billion, driven by higher energy prices and supply constraints.

Despite strong company results, gasoline prices remain above $4 per gallon, creating political challenges for President Donald Trump ahead of the midterm elections.

Executives warned that fuel prices may stay elevated until disruptions around the Strait of Hormuz ease and inventories recover, Yahoo Finance has reported.

Chevron and ExxonMobil said shortages of refined products, including gasoline, diesel, and jet fuel, could continue putting pressure on consumers.