I don't put gas in my car much any more (thanks Zero!), but the last three times I filled up I paid over $4.00, then something like $2.40, then recently well over $4.00 again. Maybe my experience is skewed by sheer infrequency, but if I had to pick a phrase to describe gasoline prices, I'd pick "extremely volatile".
Meanwhile, here in San Diego, my "Tier 1" electrical rate, with all charges, credits, etc. is 17.4c per kWh. That's gone up a little in the past few years, but not all that much. Interestingly, gasoline contains 33kWh per gallon of energy, so the equivalent rate is about $5.74 per "gallon equivalent" of electricity, assuming I don't go over my baseline (which I don't, except when it gets really hot and I run the AC). Gasoline is actually cheaper per kWh, at least here in my area.