The US and Europe have yet to fully deploy their bluntest weapon against Vladimir Putin. But if stronger sanctions are deployed against him, the Russian president is vowing to make life very painful for the western oil companies doing business in his country. The US this week quietly targeted some Russian oil industry bosses in its latest round of sanctions, and Europe has altogether avoided oil in its list of new targets. But on April 29, Putin suggested that he’s prepared to mount an oil war if antagonized further. “We would very much wish not to resort to any measures in response,” Putin said. “I hope we won’t get to that point. But if something like that continues, we will of course have to think about who is working in the key sectors of the Russian economy, including the energy sector, and how.” The remark appeared to be a swipe at lucrative long-term Russian projects […]