Pipelines: crude oil 235 km; natural gas 400 km
Ports and harbors: Doha, Halul Island, Umm Sa'id (Musay'id)
Merchant marine: total: 25 ships (1,000 GRT or over) totaling 679,081 GRT/1,051,088 DWT ships by type: cargo 10, combination ore/oil 2, container 7, petroleum tanker 6 note: includes some foreign-owned ships registered here as a flag of convenience: Kuwait 1, United Arab Emirates 3 (2002 est.)
Airports: 4 (2001)
Airports - with paved runways: total: 2 over 3,047 m: 2 (2001)
Airports - with unpaved runways: total: 2 under 914 m: 1 (2001) 914 to 1,523 m: 1
Heliports: 1 (2001)
Military Qatar
Military branches: Army, Navy, Air Force
Military manpower - military age: 18 years of age (2002 est.)