Russia's energy minister has warned that the Ukrainian crisis could lead to a disruption of gas supplies to European countries this winter.
As the military tensions get out of hand (eg Russia has by degrees invaded Ukraine) and sanctions enter a new 'cold war' phase, it seems likely that the worst energy and gas scenarios are increasing rapidly in probability. The West will do its utmost to impose stringent sanctions on Russia to punish them,and in response the Russians will turn off the gas. Gas isn't too important to the Russian economy, its effectively a minor by-product of the oil industry, but it has a large strategic energy importance to Germany, who is Europes paymaster.
Who knows where this will end; maybe gas shortages this winter in Europe followed by a dash to alternatives, like fracking and imported LNG. Expect a hike in gas prices and more demand for wood.
'Ceppose' Tarrels might be good eating too. 
