There are refineries all over the country. Take a look at all of these refineries.
U.S. Refineries Operable Atmospheric Crude Oil Distillation Capacity
Yes, there are refineries but you also have to look at distribution. It was dependent on two major pipelines that have no power for their pump stations in the Louisiana/Mississippi leg. I am sure it is a priority to restore power and will happen shortly but in the meantime . . .