The company reported quarterly net income of 88 billion roubles ($2.46 billion), down 13.7% on 102 billion roubles a year earlier, as it was clobbered by non-cash forex losses of 84 billion roubles on foreign currency debt revaluations.

The financial setback offset a 69.3% year-on-year surge in revenue to 1375 billion roubles, fuelled by record gas output of 13.18 billion cubic metres – up nearly 121% on the previous year  - and a more modest 0.5%