Power outage in Casper, Evansville affect Sinclair Refinery

A power outage early Wednesday morning sparked a shutdown at the Sinclair refinery, and with that several alarms could be heard near the facility. The outage was outside the facility, affecting nearly 3,000 customers of Rocky Mountain Power.

Officials say alarms and venting at the refinery were part of the normal shutdown procedures put into place in the event of loss of electricity at the facility, and no area residents were at risk.