I've seen a few threads about local gas prices in some of the less degreed, bluer collar and more rural filter bubbles I'm a part of. Everyone reporting super low prices is either a stone's throw from the refining infrastructure or buying on a reservation. Most people seem to be paying $2+/- $0.50 as of a few days ago.

Edit: changed my wording because apparently some of you would rather have me tiptoe around the differences between HN and the general population.