For the third week in a row, gas prices across Newfoundland and Labrador increased, although this time by a small amount.

The Public Utilities Board allowed retailers to hike their prices on all grades of gasoline by as much as 0.6 cents per litre. The change makes gas 5.6 cents more expensive per litre than mid-August.

Thursday's weekly setting brings the maximum price for a litre of self-serve unleaded gas on the Avalon Peninsula to $140.9.

Diesel costs jumped more significantly, up 2.5 cents per litre.

The PUB also allowed an increase of 1.79 cents in the per-litre cost of both furnace oil and stove oil.

The chart below shows how average gas prices in Newfoundland and Labrador have changed over the last 12 months, compared to both changes in the national average for gas prices and the global price of oil.