Diesel costs 1/3 of the cost of gasoline to refine. Ridiculous Diesel prices can be summed-up in two words: PRICE GOUGING!
Or how's about one word: GREED!
Prices in most of the rest of the world have always been high because the fuel is taxed to death. Now we're paying for oil company greed and the excuse is from ECONOMICS101: Supply and Demand...the third world, i.e., mostly China, is sucking up all the sweet crude, so the rest of the world has to suffer, or so we're told.
ALL BS! Greed is the culprit...Dubya loves it: Cap'n Nuculer WOMD makes all his scratch from it!
FWIW, I'm paying $2.67 for #2 Diesel...$90-$100/tank each fill-up...it lasts for a week, if I'm lucky! I've had my '04.5 Dodge Ram Cummins HD P/U for 17mos...Diesel was $1.41/gal when I bought the d*mn thing (stayed that way for 6 mos. prior), and has increased steadily since. Gee, only 33 more monthly payments and it's all mine, LOL! For comparision, I got a 2.8% merit raise this year!