The retail and industrial prices you mention are the official ones, not the real ones that you need to pay if you actually want gas (I am talking about large users like local distributors). The intermediaries get good revenues form the final consumers - the question is who they pay it to, or who they share it with.
See my new story on the front page. In the long run, we're all dead. John Maynard Keynes
How different are nominal prices from local distributor's prices? They should be pretty much the same. Gas is dirt cheap for end users, otherwise Ukraine would not be #6 gas user in the world with #32 economy.