If the price of one barrel crude oil $100, what wil be the apprx price of refined 1 litr diesel & 1 litr petro?

With 158.99 litres in a $100 US barrel it is 37p per litre crude.


At the moment it is $78 US barrel, this is less at 29p per litre/


(using USD to GBP conversion of 1.7)