FACTBOX - 18 countries affected by Russia-Ukraine gas row

(Reuters) - Russian Prime Minister Vladimir Putin ordered his officials on Monday to re-start gas supplies via Ukraine to Europe on Tuesday, six days after a contract row cut off customers in freezing temperatures.

Following are details of how the crisis has affected countries that depend on Russian gas.

AUSTRIA -- About 60 percent of annual demand is met by Russian gas*

Gas flows stopped on January 7.

Oil and gas group OMV was drawing on reserves, domestic production and other imports to guarantee supply.

GERMANY -- Russian gas meets about 42 percent of annual demand*

German customers remained supplied in full as German gas market leader E.ON-Ruhgas and its peers turned to gas reserves, alternative North Sea supplier countries, and a route via Belarus and Poland to bypass Ukraine. A spokesman for Wingas, which receives the bulk of its gas via the alternative route, said the status was still comfortable and had not changed over the weekend.

TURKEY -- Russia meets about 67 percent of annual gas demand*

Russian gas is expected to begin flowing again on Turkey's western pipeline from Thursday and supplies will reach normal levels on Friday, an energy ministry source told Reuters.