By doing a search
[gas] in Google on either desktop or mobile device, there’s a chance you’ll not just see local gas stations, but the gas prices at those stations.
I was able to replicate the results, and the following screen shot is what shows up for me.
This was spotted by Peter Meyers of Moz, who posted a screen shot on Twitter.
— Dr. Pete Meyers (@dr_pete) April 12, 2016