UNDATED (WKZO) -- Pump prices are creeping closer to four-dollars a gallon in West Michigan. Triple-A says gas prices are a dime higher than last week, averaging three-dollars-84 cents a gallon in west Michigan. In Kalamazoo its closer to $3.90.

That's 20 to 30 cents above the national average.

Analysts say rising wholesale gas prices and refinery problems are fueling the spike.