$3.95 a Gallon for Regular in Northern California

I went to one of the least expensive gas stations in my area and paid $3.95 a gallon for Regular. However, my wife went somewhere else and paid $4.29 Premium a gallon for her car. These are the highest prices for our area  for this time of year ever. At this rate Premium will be $5 a gallon in northern California by May or sooner which will also be a record high for gas here in Northern California.