Gas prices spiked in the Flint area just before Christmas. They took another jump just before the end of 2011. Less than a week into 2012, the price jumped again.
Unleaded gasoline could be had for less than 3 dollars a gallon in Flint a few days before Christmas. Now it's 3.59 just 3 weeks later.
Did demand/consumption bring about the price hike? Negative. Instability in the Middle East has caused speculators to jack up the price of crude oil and unleaded gas on the commodities markets.