AUGUSTA — Energy officials say heating oil prices in Maine have risen an average of 6 cents gallon in the past week.

In its weekly survey, the Governor’s Office of Energy Independence and Security said heating oil prices statewide were averaging $2.93 a gallon today.

As usual, southern Maine had the lowest prices while northern sections had the highest prices.

Director John Kerry said crude oil is trading at a 26-month high, spurred by colder temperatures, declines in inventories and increased demand in the U.S. and China.

Kerosene was selling for an average of $3.29 a gallon on Monday, up 9 cents a gallon from a week ago. Propane prices also rose 9 cents a gallon, to $2.73 a gallon.