I think it's possible we have the cheapest gas in the country right here in the Valley. We're approaching dropping below $2.00/gallon here. I've searched all over Gas Buddy, and the next cheapest I can find is $2.16. The lowest I've actually seen here was $2.05 a couple hours ago, and I paid $2.15 or so on Saturday when I filled the tank. (Filled the tank for under $50! Miracles happen!)
I can't tell you why our gas here is so cheap, but I'm not complaining. We're still not driving much, and that seems to be the case all over. We've managed to never pay $4.00 for gas, at least not yet - it never topped that here in McAllen, although we did see prices over that when we were traveling to other parts of the state. Always managed to have enough gas and never needed to fill up then. The most we ever paid was $3.95. But here soon, if we keep dropping, we'll be paying half the price that we were just 3 months ago. If ony the prices of everything else would drop that fast!