If it makes anyone feel slightly better, here in Australia Diesel is running at approx $10.90 a gallon (I converted from litres for you cos I'm awesome) and Unleaded at around $8.90 a gallon. That's in AUD so in USD...
Cost of fuel in Australia per gallon in USD
Unleaded in USD $6.20
Diesel in USD: $7.60
Cost of fuel in Australia per gallon in USD
Unleaded in USD $6.20
Diesel in USD: $7.60
Thanks Trumplethinskin