Russia’s vital oil and gas revenues tumbled 27% in October from a year earlier, data from the Finance Ministry show — a sharp blow to the Kremlin’s wartime finances just as new US sanctions tighten the screws on…

Russia’s vital oil and gas revenues tumbled 27% in October from a year earlier, data from the Finance Ministry show — a sharp blow to the Kremlin’s wartime finances just as new US sanctions tighten the screws on…