The national average price of on-highway diesel keeps pushing higher, increasing 4.3 cents from last week to $2.854 per gallon.

This is the third straight weekly increase but remains $1.11 less than this same time a year ago.

Price increases happened in all the different parts of the country since last week, ranging from 0.9 cent in New England, for an average of $3.066 per gallon, to 8.6 cents in the West Coast region, for an average of $3.112. Minus California, the West Coast increase was even more at 10.6 cents but still less at $2.971.

Trucking’s primary fuel now ranges from a low of $2.715 in the Midwest, up 2.4 cents since last week, to a high of $3.133 in Central Atlantic states, a gain of 2.3 cents during the same time.

The average cost of regular-grade gasoline also increased over the past week, adding 9.4 cents to the national average, now at $2.664 per gallon.

This is its highest price since early December but is still $1.02 less than the same time a year ago.

It ranges from a low of $2.384 in the Gulf Coast region to a high of $3.416 in the West Coast region.

Meantime, the price of oil on Monday closed slightly lower on the day in New York, shedding 22 cents, and settling at $58.93 per barrel. It hit a five-month high last week of near $60 per barrel with Brent Crude in London going past the $67 mark, before retreating slightly as well.

This comes amid a feeling U.S. shale oil production has peaked while the number of U.S. oil rigs in service had declined for 21 straight weeks to the lowest level since September 2010.

Update corrects error in the average Midwest price of diesel.