BISMARCK, N.D. (AP) — Retail gasoline prices in the Dakotas continue to be lower than the national average.

GasBuddy.com reports that the average price of a gallon of gas is about $1.92 in both North Dakota and South Dakota. The price is unchanged from the previous week in South Dakota and down about 1 ½ cents in North Dakota.

The national average is unchanged, at $2 a gallon. GasBuddy.com says a gas price hike in California due to refinery issues is inflating the national average.

Prices are even lower in the Dakotas' two largest cities — the average in Sioux Falls is $1.76 per gallon and in Fargo it's $1.69.