Phillips 66 reported a process unit upset yesterday at its 356,000 b/d Wood River refinery in Roxana, Illinois.
The refinery reported flaring activity associated with the upset at 3:30pm ET on 28 November in a filing to state hazardous material monitors. Flaring lasted for roughly 30 minutes, according to the filing.
The company did not comment on the unit associated with the flaring event.

