HOUSTON, TEXAS: ExxonMobil and Chevron said tight global supplies of diesel and other refined fuels are likely to keep prices elevated through the second half of the year as the war involving Iran continues to disrupt energy markets. Exxon said its U.S. refineries operated at high capacity during the quarter, resulting in record diesel production. Even so, Exxon CEO Darren Woods said restoring shipping through the Strait of Hormuz remains critical to improving crude supplies. Woods added that Exxon has the world’s largest refining footprint outside China and said disruptions to crude supplies had increased challenges for its downstream business. Chevron said planned refinery maintenance in the third quarter is expected to reduce downstream earnings by between $175 million and $225 million.