Exxon Mobil’s 275,000-barrel-per-day refinery in Joliet, Illinois, remains offline after flooding overwhelmed a pump during restart efforts. The facility was shut Sunday after a power outage triggered safety flaring; Exxon said the outage originated on ComEd’s primary and secondary power lines and that electricity was fully restored Thursday, but it did not say whether the pump damage was related. IIR Energy had expected normal operations by the end of the week, while Wood Mackenzie still listed the refinery as offline and another flare was reported Wednesday by GasBuddy analyst Patrick De Haan. Joliet can produce about 11 million gallons of gasoline and diesel per day and is a major Midwest supplier. Regional diesel prices were cited at roughly $6 to $6.26 per gallon, adding to concern that prolonged downtime could tighten availability and push prices higher. The disruption comes as Middle East conflict and Ukrainian attacks on Russian refineries pressure global fuel supplies. Markets are also watching Exxon’s restart progress, OPEC production decisions and geopolitical developments for their potential impact on crude prices.