FACTBOX: West Balkans gas supply disruption

(Reuters) - Following is a summary of the impact of the disruption of Russian natural gas supplies to the Western Balkans amid a row with fellow former Soviet republic Ukraine on Tuesday:

CROATIA

Oil and gas group INA said that delivery of Russian gas to Croatia was at 20 percent of normal Tuesday after a cut off early in the morning. Croatia imports 40 percent of its annual gas needs and INA called on consumers to reduce consumption.

Natural gas represents about a quarter of total fuel use.

Croatia produces 4.8 million cubic meters of gas daily and imports 3.1 million cubic meters from Russia, according to the economy ministry. Due to low winter temperatures, it is consuming 12 million cubic meters of gas daily, with the difference of about four million cubic meters coming from its reserves.

Local media reported the country has about 410 million cubic meters of gas.

MACEDONIA

Macedonia's natural gas supply was cut Tuesday on its Orthodox Christmas Eve. Only one percent of Macedonia's energy consumption stems from natural gas, according to a July 2008 report by Analytica, a Skopje-based think tank.

"Macedonia has gas reserves for only a couple of days. It's going to have an impact on companies that are run solely on gas, but the number of those is very small," said Krste Miladinov, general manager of Gama, Macedonia's gas company which is half owned by the government.

He said it annually imported 120 million cubic meters of Russian gas, just 15 percent of the total capacity of the pipeline that runs from Bulgaria to Macedonia.

Among the Macedonian companies that rely on natural gas is steel maker Maksteel, as well as other metal producers already hit by lower orders in recent months amid the economic crisis.

Some heating in apartments in Skopje comes from a plant that uses natural gas, but Maladinov said the heating could be shifted to oil.

BOSNIA

Bosnia's main gas operator BH Gas said Tuesday that delivery of Russian gas to Bosnia had been cut by 25 percent.

"Bosnia has no gas reserves. We appeal on all consumers to switch to liquid fuels to secure enough gas for those who have no alternative energy sources," said Almir Becarevic, BH Gas general manager.

Bosnia consumes around 350 million cubic meters of gas annually, most of it imported from Russia, and has no gas reserves, the company said.

A reduction of natural gas would also affect apartments which rely on central heating and industry.

Natural gas accounts for around six to eight percent of the Bosnia's energy and comes via a pipeline through Serbia.

SERBIA

Serbia is dependent on Russia for its natural gas supplies.

Natural gas accounts for 15 percent of its fuel use.

Serbia consumes 2.4 billion cubic meters of natural gas a year and imports 92 percent of its annual needs from Russia via Ukraine. It gets eight percent domestically.

Serbia uses about nine or 10 million cubic meters a day in winter, and has reserve of 100 million cubic meters, according to the state-run gas monopoly Srbijagas.

Sixty percent of natural gas is used for industry, and the rest to heat apartments and households, according Srbijagas.

ALBANIA

Has small production of domestic natural gas and is not connected to the affected grid linked to Russia. Electricity is imported via Montenegro and Kosovo.

MONTENEGRO

Is not connected to the gas grid and relies on refined oil products, electricity and wood for its energy needs.

KOSOVO

Is not connected to the gas grid and relies on oil, electricity, wood and coal.

(Writing by Adam Tanner; reporting by Igor Ilic in Zagreb, Ivana Sekularac and Gordana Filipovic in Belgrade; Kole Casule in Skopje, Benet Koleka in Tirana, editing by William Hardy)