Dear Sir, 

pleased find attached two most recent papers on oil-inflation relation. I think these are the best and very precised articles. 

Hope you will find your answers. 

Thanks

When OPEC countries have increased oil price substantially, first in 1974, then around 1980, this had substantial positive effect on inflation in oil consuming countries, like the USA and Europe; see http://www.frbsf.org/education/files/drecon_0301a.jpg .

Now oil prices have dropped a lot. Will this cause deflation? Here is a discussion: http://www.economicshelp.org/blog/11738/oil/impact-of-falling-oil-prices/