Rich countries agreed on Friday to try to cap the global price of Russian oil, while Russia delayed the re-opening of its main gas pipeline to Germany, as both sides raised the stakes in an energy war between Moscow and the West over Ukraine.
Russia's state-controlled energy giant Gazprom blamed a technical fault in the Nord Stream 1 pipeline. But the high-level manoeuvres in energy politics underlined the pervasive impact of the conflict, far beyond Ukraine's borders.
