Greater compared to what? Has it occurred to you that they sell LESS gas? What should they do with price to get the same revenue and be able to pay the bills --- the salary of the attendant, the utility bills, the insurance premia? What should the owners do, Mr. Socialist?
Everyone make your own conclusions as to the ethics. Oh yes, we live in the world of amoral relativism, where people are ignorant of how their own country works but each has his own ethics.
For all who wish to make accusatory statements read the damn article and than my post.The suggestion that the increase in the price was to ensure that there would be more gas to go around because people would buy less because of the higher price is stupid.If there is a finite supply of the product than if you sell it all to one or to one hundred the bottom line is the same.