Russia's antimonopoly watchdog asked petrol station retailer Trassa for an explanation after it raised petrol prices, the regulator said on Friday.
The watchdog sent a similar demand to another petrol chain, Neftmagistral on Thursday.
Russia's antimonopoly watchdog asked petrol station retailer Trassa for an explanation after it raised petrol prices, the regulator said on Friday.
The watchdog sent a similar demand to another petrol chain, Neftmagistral on Thursday.