Washington gasoline prices staying low

National average falls by 2.6 cents SEATTLE — Average retail gasoline prices in Washington fell 2.0 cents per gallon in the week ending Sunday, June 25, settling at $2.76 per gallon, according to GasBuddy’s daily survey of 2,666 gas outlets in Washington. This compares with a national average that fell 2.6 cents per gallon in…