To Germany and other gas importers, it was a chilling reminder of their vulnerability.
In 1995-1996, it was the largest natural gas importer in Ukraine.
The Government just announced that it would float shares in the state-controlled gas importer, having failed to find a buyer at its price.
Economic recovery of the gas, could lead to independence of major gas importers away from their traditional supply source, altering exploration trends and global economies.
As a result, it is today a net oil and gas importer.
The UK is expected to become a net natural gas importer before 2010.
Azerbaijan was a net natural gas importer in 2005.
Bosphorus Gaz Corporation is a gas importer and distributor in Turkey.
Demand is soaring as gas supplies in North America have leveled off; the potential profits to gas importers are enormous.
Ukraine was 6th top gas importer in 2009.