Gasoline prices edged slightly higher in the last week. Average gasoline prices in Minnesota have risen 2.0 cents per gallon, averaging $2.64. The national average price of gasoline has risen 1.2 cents per gallon, averaging $2.84. The national average price of diesel has increased 2.9 cents compared to a week ago and stands at $3.61. Gas Buddy says that even though oil prices slipped last week amid reduced geopolitical risk, strengthening seasonal factors are likely to intensify, potentially driving the national average back above $3 per gallon.