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| Railways | total: 7,256 km broad gauge: 94 km 1.676-m gauge standard gauge: 7,162 km 1.435-m gauge (186 km electrified) (2005) | | | Waterways | 850 km (on Karun River; additional service on Lake Urmia) (2006) | | | Pipelines | condensate 7 km; condensate/gas 397 km; gas 17,099 km; liquid petroleum gas 570 km; oil 8,521 km; refined products 7,808 km (2006) | | | Merchant marine | total: 141 ships (1000 GRT or over) 5,086,702 GRT/8,878,829 DWT by type: bulk carrier 39, cargo 45, chemical tanker 4, container 12, liquefied gas 1, passenger 1, passenger/cargo 6, petroleum tanker 30, roll on/roll off 3 foreign-owned: 1 (UAE 1) registered in other countries: 22 (Bolivia 1, Cyprus 2, Malta 14, Panama 4, Saint Vincent and the Grenadines 1) (2006) | | | Airports | 321 (2006) | | | Heliports | 15 (2006) | |
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