This is very interesting article giving a lot of the political/energy background to Ukraine.
http://euanmearns.com/putins-energy-str ... #more-2425
The Ukraine is an increasing irrelevance to the European energy supply.
The gas pipelines through the Ukraine are being bypassed to the north and south. LNG is also taking a growing share of a declining market.
Ukraine has been trading on its pipeline bottleneck too long, and its bluff is being called.
My guess is that both Russia and Europe has decided to cut Ukraine lose. Let them sink under their debts. Russia is reclaiming their corner in Crimea.
However, this line is interesting and worrying.
Eastern Ukraine’s giant Donbas coal field is estimated by many analysts as holding very impressive quantities of coalbed methane, with published outline estimates from the US EIA and other sources extending well above 1 trillion cubic metres.
CBM is bad news environmentally, but it may be a significant energy resource, and the preponderance of ethnic Russians in eastern Ukraine may be all the excuse Putin needs to annex this coal fields as well.