UNDATED -- Gas prices have risen another 8.0 cents per gallon in Minnesota in the past week, averaging $3.40.

The national average has risen 3.2 cents averaging $3.52.

Gas Buddy says with tensions still very high that Russia may invade Ukraine, gas prices kept moving higher.

Talks between Iran and global powers in Vienna could bring a new deal with Iran's crude oil supply getting back to legitimate markets, which would help ease a slight portion of supply concerns.

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However, we're also just weeks away from the traditional start of the spring surge in gas prices brought on by the change to summer gasoline, seasonal maintenance at refineries and rising demand.

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