Baku is the capital and largest city of Azerbaijan, as well as the largest city on the Caspian Sea and in the Caucasus region. Baku is 28 metres (92 ft) below sea level, which makes it the lowest lying national capital in the world and also the largest city in the world below sea level. Baku lies on the southern shore of the Absheron Peninsula, on the Bay of Baku. Baku's urban population was estimated at two million people as of 2009. Baku is the primate city of Azerbaijan—it is the sole metropolis in the country, and about 25% of all inhabitants of the country live in Baku's metropolitan area.
The transport in Azerbaijan involves air traffic, waterways and railroads. All transportation services in Azerbaijan except for oil and gas pipelines are regulated by the Ministry of Transportation of Azerbaijan Republic.
The Baku–Tbilisi–Ceyhan (BTC) pipeline is a 1,768 kilometres (1,099 mi) long crude oil pipeline from the Azeri–Chirag–Gunashli oil field in the Caspian Sea to the Mediterranean Sea. It connects Baku, the capital of Azerbaijan and Ceyhan, a port on the south-eastern Mediterranean coast of Turkey, via Tbilisi, the capital of Georgia. It is the second-longest oil pipeline in the former Soviet Union, after the Druzhba pipeline. The first oil that was pumped from the Baku end of the pipeline reached Ceyhan on 28 May 2006.
The State Oil Company of the Republic of Azerbaijan, largely known by its abbreviation SOCAR, is a fully state-owned national oil and gas company headquartered in Baku, Azerbaijan. The company produces oil and natural gas from onshore and offshore fields in the Azerbaijani segment of the Caspian Sea. It operates the country's only oil refinery, one gas processing plant and runs several oil and gas export pipelines throughout the country. It owns fuel filling station networks under the SOCAR brand in Azerbaijan, Turkey, Georgia, Ukraine, Romania, Switzerland, and Austria.
Olya is a rural locality in Limansky District of Astrakhan Oblast, Russia, on the shore of one of the largest branches of the Volga River, Bakhtemir, near the Caspian Sea about 120 kilometers (75 mi) southwest of Astrakhan. It serves as a port on the Caspian Sea. In 2010 the settlement recorded 1372 farmsteads and 3752 residents. The port's cargo turnover was approximately 2.5 million tons as of 2006.
The Baku–Tbilisi–Kars (BTK), or Baku–Tbilisi–Akhalkalaki–Kars railway (BTAK), is a railway connecting Azerbaijan, Georgia and Turkey, which became operational on 30 October 2017 following several years of delays. The project was originally due to be completed by 2010, but was delayed to 2013, 2015, 2016, and, following a fifth trilateral meeting in February 2016, foreign ministers of the three countries announced that the railway would finally be completed in 2017.
The Port of Constanța is located in Constanța, Romania, on the western coast of the Black Sea, 179 nautical miles (332 km) from the Bosphorus Strait and 85 nmi (157 km) from the Sulina Branch, through which the Danube river flows into the sea. It covers 3,926 ha, of which 1,313 ha is land and the rest, 2,613 ha is water. The two breakwaters located northwards and southwards shelter the port, creating the safest conditions for port activities. The present length of the north breakwater is 8,344 m (5.185 mi) and the south breakwater is 5,560 m (3.45 mi). The Port of Constanța is the largest on the Black Sea and the 17th largest in Europe.
Strong foreign relations exist between the Republic of Azerbaijan and the United Kingdom. The Embassy of United Kingdom in Baku opened in 1992. The Embassy of the Republic of Azerbaijan in London opened in 1994. Both countries are members of the Council of Europe, the Organization for Security and Co-operation in Europe.
Bilateral relations exist between the Republic of Azerbaijan and the Republic of Bulgaria in political, socio-economic, cultural and other spheres. Cooperation is carried out in such areas as transport and transit of goods, tourism, pharmaceuticals, agriculture, science and high technologies, education, military equipment, etc.
Foreign relations exist between Azerbaijan and Kazakhstan. Azerbaijan has an embassy in Astana and a consulate in Aktau. Kazakhstan has an embassy in Baku.
Baku Boulevard is a promenade established in 1909 which runs parallel to Baku's seafront. Its history goes back more than 100 years, to a time when Baku oil barons built their mansions along the Caspian shore and when the seafront was artificially built up inch by inch.
Two-thirds of energy in Azerbaijan comes from fossil gas and almost a third from oil. Azerbaijan is a major producer of oil and gas, much of which is exported. Most electricity is generated by gas-fired power plants. Energy in the country is produced using all types of sources, including fuel, renewable energy, water energy, electrical and heat energy.
Azerbaijan Railways is the national state-owned rail transport operator in the Republic of Azerbaijan. The 2,918 km (1,813 mi), 1,520 mm gauge network is electrified at 3 kV (3,000 V) DC. The headquarters of the Azerbaijan Railways is in the capital Baku.
Park Bulvar is a multi-story shopping mall located on Baku Boulevard in downtown Baku, Azerbaijan.
The Türkmenbaşy International Seaport is the main passenger harbour and cargo port in Türkmenbaşy, Turkmenistan.
Azerbaijan Caspian Shipping Closed Joint-Stock Company is an Azerbaijani shipping company. It is also known as CASPAR.
Relations between Turkic Council and Azerbaijan started from the year of 2009 until present. Taking into account of the establishment date of the organization, Azerbaijan continues relations as a member of the founding country.
Azerbaijan is one of the birthplaces of the oil industry and its history is linked to the fortunes of petroleum, with pipelines used from the late 19th century. The total length of the main pipeline in Azerbaijan is 4,600 kilometres (2,900 mi)
Baku Shipyard LLC is a shipyard plant in Azerbaijan. It is a joint venture between State Oil Company of Azerbaijan Republic, Azerbaijan Investment Company (AIC) and Keppel Corporation. The construction and operation of the plant is also a joint effort between the three companies.
Azerbaijan—Latvia relations refer to the bilateral relations between the Azerbaijan and Latvia. Since 2005, Azerbaijan has had a representative office in Riga, just as Latvia has an embassy in Baku.
15 million tons
100,000 TEU 
