December, 2013 Diesel pricing increased by 2% compared to November while Crude increased by 4%. The SK Index rate, which is a combination of #2 Diesel and Natural gas decreased by 4% in December. The SKIndex rate to be used for January 2014 is $1.77.
Since January, 2013 Crude has increased by 3% while Diesel decreased by 3%.
Feel free to contact me if you have any questions on this. (Matthew Gudorf / firstname.lastname@example.org)