There has always been a problem with gas dealers getting together to raise prices. The price always goes up in summer because people pay what the market will bear because they want to get out of the house. If the prices get too high and people stop buying, one dealer will usually lower the price and then others will follow.
Next weekend is Memorial Day weekend. That is the start of summer and the weekend when lots of folks get on the road. Lets see what happens next week and the week after.