On Friday the German government seized control of a major Russian-owned oil refinery. A unit of Russian oil firm Rosneft is now under the trusteeship of the German industry regulator. Its taken over the business' Schwedt refinery, which supplies 90% of Berlin's fuel.
More info here: Germany Tightens Control Over Industry With Russian Oil Grab
This raises the stakes with risks of further retaliation from Putin, further restrictions of Russian energy flow in Europe.
Hapless Russian leader Putin: