May rise dramatically as 40% of the region's refining capacity closes.
"While the largest loss by volume will be gasoline supplies, idling the Marcus Hook refinery early in the current heating season eliminates a major regional source of heating oil supplies in a market with relatively low stock levels, although a mild start to the winter has eased demand. By the winter of 2012/13, more regionally-sourced ULSD and heating oil supplies will be lost if Sunoco?s Philadelphia refinery is also shut down."
Government report (PDF)
Of course if one moved to Texas, there wouldn't be much of a transport problem...