Oil prices rallied almost 60% in the first half of the year and since mid-June, WTI has tumbled by nearly more than 35%, leaving it up less than 7% for the year.
The US retail price for gasoline has risen over the last few days but did slip a little in September, its third consecutive monthly decline. At an average of around $3.80 a gallon, it has risen by slightly more than 15% since the end of last year.
A broader measure of commodity prices, the CRB Index, has also pulled back since the mid-June peak. It has fallen by nearly 20%