they've dropped about $.40/.50 a gallon here in MPLS area the last few weeks, too.
end of summer gas formulations, typical seasonal drop in driving miles for winter in the midwest, and a good ol' fashioned recession is a good mix to get those prices back down.
Also, just checked the SPR stockpile graph - seems like oil has continued being siphoned from them even into December, down to levels not seen since early 1984....that's definitely having an impact to accentuate gas price dips for now.