Which Place Has The Best Cheap Gas Prices In Yakima?

The other day, I saw the gas was $2.63 on W. Nob Hill Blvd, but the next day it was back up to $2.70-something!

UGH!

I found this website (Gas Buddy) to help locate the place that has the best cheap gas price in Yakima, but I am not for certain how reliable the prices are.

I need to fill up my gas tank because I'm on "E", so I'm asking YOU: which place do you recommend to find the cheapest gas prices in Yakima? Or should I venture out to Union Gap or Wapato?