Oil prices are down, gasoline prices are not. What gives?

[rwana]

http://i.cbc.ca/1.2661045.1401627467!/cpImage/httpImage/image.jpg_gen/derivatives/16x9_460/summer-gasoline-prices.jpg Oil prices are down, but gasoline prices aren't. Why? Because Canadian and U.S. refining margins are running at seven- and eight -year highs.


more .... (http://www.cbc.ca/news/business/oil-prices-are-down-gasoline-prices-are-not-what-gives-1.3163008?cmp=rss)