The average Canadian cost of diesel has moved slightly lower this week after a moving higher or being unchanged the previous six weeks, according to new numbers released Tuesday by the petroleum information services provider The Kent Group.

It declined $0.02 per liter from last week to $1.135, after gaining $0.032 cents from April 21-May 26.

Compared to this week a year ago, the current price is $0.223 less.

In contrast, the average price of regular grade gasoline increased $0.016 cents from last week to $1.19 per liter, its highest level since last November.

Compared to the same time in 2014 the price is still $0.184 less.

South of the border, the average price of on-highway diesel moved a little lower this week, following six consecutive weekly increases, according to the U.S. Energy Department.

The US$0.05 decline puts it at US$2.909 per gallon. Compared to this week a year ago the price is US$1.009 less.

The drop follows a string of increases that took it from US$2.754 on April 13 to US$2.914 on May 25, which was the highest price in a little more than two months.

Meantime, the average price of regular grade gasoline in the U.S. moved higher for the seventh straight week and hitting its highest level since last November. Over the past seven weeks it has increased a little more than $0.37.

It moved $0.06 higher this week to US$2.78 per gallon but is $0.91 less than the same time a year earlier.