Phillips 66's Wood River refinery in Roxana, Illinois, with a capacity of 356,500 barrels per day, has started a maintenance turnaround, according to IIR Energy. The refinery initiated maintenance tasks last week and is focused on the crude distillation unit, vacuum flasher, catalytic cracker unit, and gas plant units, with work anticipated to be completed by the end of April. The refinery is known for producing various transportation fuels such as gasoline, diesel, and aviation fuel. When asked for a statement, a Phillips 66 representative opted not to provide comments on the refinery's operations.