Yes: Here in Maryland we do have a similar law.
Its all about keeping big oil dealers like Wawa and Sheetz from underpricing and putting the local oil dealers who have local politicians in their pockets ,out of business.
Yup...once you cut through all the bovine feces, that's exactly what it's about.
It's akin to the WalMart bill which purports to be about one thing but is really nothing but an attack by unions supported by their accomplices in the RAT controlled legislature.