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Oil is about to get more expensive in 2018, says analyst

The Petrodollar is gaining strength. So is the Petroruble, to coin a phrase.
Yes, that was a pun.
The truth is that over the last twelve months, oil prices have been gradually and steadily on the increase.  At the beginning of 2017, the price for a barrel of crude was about $56.  It sunk gradually until June of last year, bottoming out in the mid $40’s, and has been on the rise again ever since.