FACTBOX-Major energy pipelines in central/south Europe

(Updates ITGI, Nabucco, Medgaz projects)

July 14 (Reuters) - Here are some key facts on major oil or gas pipelines in central and southeastern Europe:

* INTERCONNECTOR TURKEY-GREECE-ITALY - The ITGI Project to import 8 billion cubic meters (bcm) of natural gas a year from the Caspian Sea Basin via Turkey and Greece to southern Italy could open in 2012.

The onshore section in Greece would run from Komotini to the coast in Thesprotia, where it would feed into the Poseidon Pipeline running under the Mediterranean Sea to Otranto in south east Italy.

The subsea section would be laid by a joint venture of Italy's Edison (EDN.MI) and state-owned Greek hydrocarbon company DEPA.

The two companies agreed on July 14 to allow Bulgarian Energy Holding to take 1 bcm/year of the gas to cut its dependence on Russia. [ID:nLE418268]

* NABUCCO - On July 13, European Union countries and Turkey signed a key transit deal for the 7.9 billion euro ($11.05 billion) Nabucco gas pipeline aimed at cutting Europe's energy dependence on Russia. [ID:nLD637622]

The United States-backed project aims to transport gas from the Caspian and Middle East via Turkey, Bulgaria, Romania, and Hungary to central Europe.

Construction of the 3,300-km (2,050 mile) pipeline is scheduled to start in 2011 and first deliveries are expected in 2014 with an initial annual capacity of 8-10 bcm.

Austrian oil and gas group OMV (OMVV.VI) heads the consortium which includes Hungary's MOL MOLB.BU, Turkey's Botas, Bulgaria's Bulgargaz, Romania's Transgaz TGNM.BX, and German utility RWE (RWEG.DE).

It could transport up to 31 bcm of gas a year from Central Asia and the Middle East to Europe by 2020, reducing dependency on Russian gas, and may be used to bring Iranian gas to Europe.

* SOUTH STREAM - Gazprom (GAZP.MM) and Italian oil firm Eni (ENI.MI) plan to build a 10 billion euro ($13.53 billion) pipeline, seen as a rival to Nabucco, to take Russian gas under the Black Sea to south-eastern Europe, avoiding Ukraine with which Russia has had pricing debates.

* AMBO - The 900-km AMBO Trans-Balkan Oil Pipeline is planned to transport Caspian or Russian oil from Bulgaria's Burgas via Macedonia to the Albanian Adriatic sea port of Vlores. AMBO, the Albanian Macedonian Bulgarian Oil Corp. plans to commission the pipeline in 2011 and to transport crude of 750,000 barrels/day or around 40 million tonnes/year.

* TRANS ADRIATIC PIPELINE (TAP) - The 520 km pipeline will transport gas via Greece and Albania across the Adriatic Sea to southern Italy from 2012.

TAP is a 50/50 joint venture between Swiss EGL (EGL.S) and Norway's StatoilHydro (STL.OL) and is expected to cost about 1.5 billion euros to build.