These high-cost alternatives include Shale Oil and Solar and Windpower.
But then was relatively flat through 2009.
For instance in 1986, when crude was down -46.
Norway was a distant second at 27%.
The Environmental Protection Agency mandates cleaner versions of gas be used in Summer to prevent an increase in smog.
Overall inflation will likely get worse in March and April before improving, Bill Adams, chief economist for Comerica Bank, said in a report.