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South Stream (russian: Южный поток, Yuzhnyy potok; bg, Южен поток, Yuzhen potok; sr, / ; sl, Južni tok; hu, Déli Áramlat; it, Flusso Meridionale) was a canceled pipeline project to transport natural gas of the
Russian Federation Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-eig ...
through the
Black Sea The Black Sea is a marginal mediterranean sea of the Atlantic Ocean lying between Europe and Asia, east of the Balkans, south of the East European Plain, west of the Caucasus, and north of Anatolia. It is bounded by Bulgaria, Georgia, Rom ...
to Bulgaria and through Serbia, Hungary and Slovenia further to Austria. It was never finished. The project was found in non-compliance with the
European Union The European Union (EU) is a supranational political and economic union of member states that are located primarily in Europe. The union has a total area of and an estimated total population of about 447million. The EU has often been de ...
's Third Energy Package legislation, which stipulates the separation of companies' generation and sale operations from their transmission networks. The Russian Government cancelled the project in 2014, seven years after the project was started. It was seen as rival to the
Nabucco pipeline The Nabucco pipeline (also referred as Turkey–Austria gas pipeline) was a failed natural gas pipeline project from Erzurum, Turkey to Baumgarten an der March, Austria to diversify natural gas suppliers and delivery routes for Europe. The pi ...
project, which was abandoned in favor of the
Trans Adriatic Pipeline Trans Adriatic Pipeline (TAP) ( sq, Gazsjellësi Trans-Adriatik, el, Διαδριατικός Αγωγός Φυσικού Αερίου - ''Diadriatikós Agogós Fysikoú Aeríou'', it, Gasdotto Trans-Adriatico) is a natural gas pipeline p ...
. Unlike South Stream, TAP is fully compliant with EU legislation by way of having obtained EU Third Party Access Exemption. Construction of the Russian onshore facilities for the South Stream pipeline started in December 2012. The project was cancelled by Russia in December 2014 following obstacles from the European Union, the
2014 Russian annexation of Crimea In February and March 2014, Russia invaded and subsequently annexed the Crimean Peninsula from Ukraine. This event took place in the aftermath of the Revolution of Dignity and is part of the wider Russo-Ukrainian War. The events in Kyiv th ...
, and the resulting imposition of European sanctions on Russia. The project has been replaced by other proposed ones Tesla pipeline and Turkish Stream. The latter, renamed as TurkStream, was approved and later completed, sending gas supplies to Bulgaria on 1 January 2020.


History

The South Stream pipeline project was announced on 23 June 2007, when the CEO Paolo Scaroni of the Italian energy company Eni and the Vice-Chairman
Alexander Medvedev Alexander Ivanovich Medvedev (russian: Александр Иванович Медведев, ) (born 14 August 1955 in Shakhtyorsk, Sakhalin Oblast) is the current Deputy Chairman of the Management Committee of Russian energy company Gazprom an ...
of the Russian Gazprom signed a memorandum of understanding in
Rome , established_title = Founded , established_date = 753 BC , founder = King Romulus (legendary) , image_map = Map of comune of Rome (metropolitan city of Capital Rome, region Lazio, Italy).svg , map_caption ...
for the construction of the pipeline. On 22 November 2007, Gazprom and Eni signed in
Moscow Moscow ( , US chiefly ; rus, links=no, Москва, r=Moskva, p=mɐskˈva, a=Москва.ogg) is the capital and largest city of Russia. The city stands on the Moskva River in Central Russia, with a population estimated at 13.0 millio ...
an agreement on establishing a joint project company for the commissioning of the marketing and technical feasibility studies of the project. The preliminary agreement between Russia and Bulgaria on Bulgaria's participation in the project was signed on 18 January 2008. It was agreed to set up an equally owned company to build and operate the Bulgarian section of the pipeline. The agreement was ratified by Bulgarian Parliament on 25 July 2008. The first agreement between Russia and Serbia was signed even before the announcement of the South Stream project. On 20 December 2006, Gazprom and Serbian state-owned gas company Srbijagas agreed to conduct a study on building a gas pipeline running from Bulgaria to Serbia. On 25 January 2008, Russia and Serbia signed an agreement to route a northern line of South Stream through Serbia and to create a joint company to build the Serbian section of the pipeline and a gas storage facility near Banatski Dvor. On the same day, Russia and Hungary agreed to set up an equally owned joint company to build and operate the Hungarian section. On 29 April 2008, Russia and Greece signed an intergovernmental agreement on cooperation in construction and operation of the Greek section. On 15 May 2009, in Sochi, in presence of the Prime Minister of Russia
Vladimir Putin Vladimir Vladimirovich Putin; (born 7 October 1952) is a Russian politician and former intelligence officer who holds the office of president of Russia. Putin has served continuously as president or prime minister since 1999: as prime min ...
and the Prime Minister of Italy
Silvio Berlusconi Silvio Berlusconi ( ; ; born 29 September 1936) is an Italian media tycoon and politician who served as Prime Minister of Italy in four governments from 1994 to 1995, 2001 to 2006 and 2008 to 2011. He was a member of the Chamber of Deputies f ...
, the gas companies of Russia, Italy, Bulgaria, Serbia and Greece signed an agreement on construction of South Stream. On 6 August 2009, the Prime Minister of Russia Vladimir Putin and the Prime Minister of
Turkey Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a transcontinental country located mainly on the Anatolian Peninsula in Western Asia, with a small portion on the Balkan Peninsula in ...
Recep Tayyip Erdoğan in attendance of the Prime Minister of Italy Silvio Berlusconi signed a protocol routing the pipeline through the Turkish territorial waters. On 14 November 2009, followed the talks between Slovenian Prime Minister
Borut Pahor Borut Pahor (; born 2 November 1963) is a Slovenian politician who served as President of Slovenia from 2012 to 2022. He previously served as Prime Minister of Slovenia from November 2008 to February 2012. A longtime member and former presi ...
and Russian Prime Minister Vladimir Putin, the agreement to run a part of the pipeline through Slovenia to Northern Italy was signed by Russian Energy Minister Sergei Shmatko and Slovenian Economy Minister Matej Lahovnik in Moscow. As per earlier 2008 agreement between two countries, on 17 November 2009, Russian Gazprom and Serbian Srbijagas created South Stream Serbia AG in Bern, Switzerland. The joint company was responsible for design, financing, construction and operation of the Serbia section. On 2 March 2010, Russian Energy Minister Sergei Shmatko and Croatian Economy, Labor and Entrepreneurship Minister Djuro Popijac in the presence of the Prime Minister of Russia Vladimir Putin and Prime Minister of Croatia
Jadranka Kosor Jadranka Kosor (; born 1 July 1953) is a Croatian politician and former journalist who served as Prime Minister of Croatia from 2009 to 2011, having taken office following the sudden resignation of her predecessor Ivo Sanader. Kosor was the fi ...
signed an agreement on linking Croatia with South Stream. On 19 June 2010, Gazprom, Eni, and Électricité de France published a joint press release confirming that EDF will join the project. On 21 March 2011, Slovenia and Russia signed an agreement regarding the establishment of a joint venture South Stream Slovenia. The joint venture South Stream AG, equally owned by Gazprom and Eni, was registered on 18 January 2008 in Switzerland. However, on 16 September 2011, a shareholders' agreement was signed between Gazprom, Eni, Électricité de France and Wintershall to establish the new project company South Stream Transport AG for the Black Sea section of the pipeline. The company was incorporated on 3 October 2011 in Zug, Switzerland. On December 28, 2011 Turkey issued its final agreement for allowing the pipeline to pass through its territorial waters. The final investment decision for the Serbian section was signed on 29 October 2012, for the Hungarian section on 2 November 2012, for the Slovenian section on 13 November 2012, and for the Bulgarian section on 15 November 2012. On 15 November 2012, shareholders of South Stream Transport AG signed the final investment decision on the offshore section. The ground-breaking ceremony marking start of construction of the Russian onshore facilities was held on 7 December 2012 at the Russkaya compressor station near
Anapa Anapa (russian: Ана́па, ) is a town in Krasnodar Krai, Russia, located on the northern coast of the Black Sea near the Sea of Azov. Population: History The area around Anapa was settled in antiquity. It was originally a major seaport ( ...
. On 25 July 2013, the Vice Premier
Republic of Macedonia North Macedonia, ; sq, Maqedonia e Veriut, (Macedonia before February 2019), officially the Republic of North Macedonia,, is a country in Southeast Europe. It gained independence in 1991 as one of the successor states of Yugoslavia. It ...
Zoran Stavreski signed the agreement on linking section through Republic of Macedonia with South Stream. In March and April 2014, the contracts for laying the first and second lines of the offshore section were awarded to
Saipem Saipem S.p.A. (Società Anonima Italiana Perforazioni E Montaggi lit. ''Drilling and Assembly Italian Public Limited Company'') is an Italian multinational oilfield services company and one of the largest in the world. Until 2016 it was a subsid ...
and Allseas. Contracts for the third and fourth line were to be signed in December 2014 and January 2015. On 17 April 2014, amid
Russia's annexation of Crimea In February and March 2014, Russia invaded and subsequently annexed the Crimean Peninsula from Ukraine. This event took place in the aftermath of the Revolution of Dignity and is part of the wider Russo-Ukrainian War. The events in Kyiv ...
, the
European Parliament The European Parliament (EP) is one of the legislative bodies of the European Union and one of its seven institutions. Together with the Council of the European Union (known as the Council and informally as the Council of Ministers), it adopts ...
adopted a non-binding resolution opposing the South Stream gas pipeline and recommending a search for alternative sources of gas supplies for the European Union. On 29 April 2014 a memorandum on the implementation of the Austrian section was signed in Moscow. Commissioning of the Austrian section is scheduled by January 2018. In June 2014, Bulgaria temporarily stopped construction due to the
European Commission The European Commission (EC) is the executive of the European Union (EU). It operates as a cabinet government, with 27 members of the Commission (informally known as "Commissioners") headed by a President. It includes an administrative body ...
's infringement procedure against Bulgaria for non-compliance with European rules on energy competition public procurements. In April 2014, Russia filed a complaint at the
World Trade Organization The World Trade Organization (WTO) is an intergovernmental organization that regulates and facilitates international trade. With effective cooperation in the United Nations System, governments use the organization to establish, revise, and ...
against the European Union's energy market laws that were enacted in 2009, claiming that they violate international rules. These laws ban suppliers from owning transit facilities such as gas pipelines, and would force Gazprom to allow third-party gas producers to use the South Stream pipeline. On 1 December 2014, during a state visit to Turkey, president Putin announced that Russia was withdrawing from the project, blaming Western sanctions and lack of construction permits in the territory of the European Union. Russia has started to build a pipeline through
Turkey Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a transcontinental country located mainly on the Anatolian Peninsula in Western Asia, with a small portion on the Balkan Peninsula in ...
known as Turkish Stream. Renamed as TurkStream, the pipeline was later completed, sending gas supplies to Bulgaria on 1 January 2020. Along with additional supplied to Turkey, Russian gas, according to Putin, “will be retargeted to other regions of the world, which will be achieved, among other things, through the promotion and accelerated implementation of projects involving liquefied natural gas.” In 2015, the supply of Russian gas to Turkey will be raised by 3 billion cubic meters via the already operating Blue Stream pipeline. Later a new undersea pipeline to Turkey, with an annual capacity around 60 billion cubic metres (bcm) will be built. That will allow Turkey to resell Russian gas to Europe. In 2018, Bulgaria's president Rumen Radev proposed that the construction of the South Stream pipeline be resumed.


Route

The pipeline was to consist of the Russian onshore pipeline, the Black Sea section and pipelines in the South- East Europe. The Russian onshore section would have run from the Pochinki compressor station to the Russkaya compressor station near
Anapa Anapa (russian: Ана́па, ) is a town in Krasnodar Krai, Russia, located on the northern coast of the Black Sea near the Sea of Azov. Population: History The area around Anapa was settled in antiquity. It was originally a major seaport ( ...
. The long offshore section was to run from the Russkaya compressor station through the Black Sea to Galata near
Varna, Bulgaria Varna ( bg, Варна, ) is the third-largest city in Bulgaria and the largest city and seaside resort on the Bulgarian Black Sea Coast and in the Northern Bulgaria region. Situated strategically in the Gulf of Varna, the city has been a m ...
.D. Dimitrov, P. Dimitrov, V. Peychev, M. Tsaneva. (2014)
Physical - geographical and geological - lithological characteristic a trace of the pipeline South stream in the Bulgarian economical zone of the Black Sea
Konstantin Preslavsky Publishing House, Shumen. 7-15. doibr>10.13140/RG.2.2.31954.71367
Because of the
Russia–Ukraine gas disputes The Russia–Ukraine gas disputes refer to a number of disputes between Ukrainian oil and gas company Naftogaz Ukrayiny and Russian gas supplier Gazprom over natural gas supplies, prices, and debts. These disputes have grown beyond simple busi ...
, the pipeline was to be routed through Turkey's waters to avoid the exclusive economic zone of
Ukraine Ukraine ( uk, Україна, Ukraïna, ) is a country in Eastern Europe. It is the second-largest European country after Russia, which it borders to the east and northeast. Ukraine covers approximately . Prior to the ongoing Russian inv ...
. At the same time Russia's 2014 annexation of Crimea would have allowed more direct route through the
Crimea Crimea, crh, Къырым, Qırım, grc, Κιμμερία / Ταυρική, translit=Kimmería / Taurikḗ ( ) is a peninsula in Ukraine, on the northern coast of the Black Sea, that has been occupied by Russia since 2014. It has a pop ...
n waters. The long onshore section was to start from Varna and run to Pleven. From there, the original southwestern route was to continue through Greece and Ionian Sea to southern Italy. However, this route was abandoned. The newer northwestern route would have continued from Pleven to Serbia. In Serbia, then running through
Zaječar Zaječar ( sr-Cyrl, Зајечар, ; ro, Zaicear or ) is a city and the administrative center of the Zaječar District in eastern Serbia. According to the 2011 census, the city administrative area has a population of 59,461 inhabitants. Zaječa ...
and
Paraćin Paraćin ( sr-Cyrl, Параћин, ) is a town and municipality located in the Pomoravlje District of central Serbia. It is located in the valley of the Velika Morava river, north of Kruševac and southeast of Kragujevac. In 2011 the town had a p ...
to Čenta. From Čenta the main pipeline would have continued in direction of
Gospođinci Gospođinci (; hu, Boldogasszonyfalva) is a village in the municipality of Žabalj, in the South Bačka District of Serbia. It is situated in the Autonomous Province of Vojvodina. The village has a Serb ethnic majority and its population is 3,89 ...
while branch-off line would run to
Republika Srpska Republika Srpska ( sr-Cyrl, Република Српска, lit=Serb Republic, also known as Republic of Srpska, ) is one of the two entities of Bosnia and Herzegovina, the other being the Federation of Bosnia and Herzegovina. It is locat ...
in
Bosnia and Herzegovina Bosnia and Herzegovina ( sh, / , ), abbreviated BiH () or B&H, sometimes called Bosnia–Herzegovina and often known informally as Bosnia, is a country at the crossroads of south and southeast Europe, located in the Balkans. Bosnia and H ...
. Srbijagas planned to construct along
Sava The Sava (; , ; sr-cyr, Сава, hu, Száva) is a river in Central and Southeast Europe, a right-bank and the longest tributary of the Danube. It flows through Slovenia, Croatia and along its border with Bosnia and Herzegovina, and finally t ...
river a long branch pipeline with a capacity of to
Banja Luka Banja Luka ( sr-Cyrl, Бања Лука, ) or Banjaluka ( sr-Cyrl, Бањалука, ) is the second largest city in Bosnia and Herzegovina and the largest city of Republika Srpska. Banja Luka is also the ''de facto'' capital of this entity. I ...
and
Sarajevo Sarajevo ( ; cyrl, Сарајево, ; ''see names in other languages'') is the capital and largest city of Bosnia and Herzegovina, with a population of 275,524 in its administrative limits. The Sarajevo metropolitan area including Sarajevo ...
. It was also surmised that
Montenegro ) , image_map = Europe-Montenegro.svg , map_caption = , image_map2 = , capital = Podgorica , coordinates = , largest_city = capital , official_languages = M ...
could have connected to the pipeline. Before reaching Gospođinci, the main line was to split. One route would continue through Serbia and Hungary to
Baumgarten an der March Baumgarten an der March (Croatian: ''Pangort na Moravi'') is a small subdivision of the municipality of Weiden an der March in Lower Austria, Austria. It has only 192 inhabitants. Significance for the energy sector Baumgarten has an important ...
in Austria. Another route would have continued through Gospođinci and Bački Breg also to Hungary with branch-off to Croatia. In Hungary it would have gone through
Hercegszántó Hercegszántó ( hr, Santovo, sr, Сантово) is a village in the Bács-Kiskun County of Hungary, famous for being the birthplace of footballer Flórián Albert. Residents are Magyars, with minority of Serbs and Croats. Until the end of Wo ...
and Tornyiszentmiklós to Slovenia and further in direction of
Tarvisio Tarvisio (German and fur, Tarvis, sl, Trbiž) is a comune in the northeastern part of the autonomous Friuli Venezia Giulia region in Italy. Geography The town is in the Canal Valley (''Val Canale'') between the Carnic Alps and Karawanks rang ...
to supply northern Italy.


Technical description

The feasibility study of the offshore section was conducted by
Saipem Saipem S.p.A. (Società Anonima Italiana Perforazioni E Montaggi lit. ''Drilling and Assembly Italian Public Limited Company'') is an Italian multinational oilfield services company and one of the largest in the world. Until 2016 it was a subsid ...
, a subsidiary of Eni. Planning was done by INTECSEA, a subsidiary of
WorleyParsons WorleyParsons Limited, branded as Worley after completing the acquisition of Jacobs' Energy, Chemicals & Resources (ECR) division, is an American Australian engineering company which provides project delivery and consulting services to the ...
. Giprospetsgas, an affiliate of Gazprom, has been appointed as a general design contractor. The offshore pipeline is planned to carry of natural gas per year. It will have four parallel lines with capacity of each. The offshore pipeline will use pipes with a diameter of , designed for of working pressure and having the pipe wall thickness of . The first line should be ready by the end of 2015, the second and third lines by the end of 2016, and the fourth line by the end of 2017. The offshore section is expected to cost €10 billion. Pipeline sections in Bulgaria, Serbia, Hungary, and Slovenia would have capacity at least per year. The onshore pipeline will have eight compressor stations and it is expected to cost €6 billion. , accessdate = 2012-02-20 At least two gas storage facilities would be constructed of which one would be an underground storage facility in Hungary with capacity of minimum and another one in Banatski Dvor, Serbia with capacity of . Hungarian oil and gas company MOL Group has offered its empty natural gas field at Pusztaföldvár as a storage facility. British Melrose Resources is planning to convert the Galata offshore field in Bulgaria to a gas storage facility with initial capacity of by 2009. There are also allegations that the South Stream pipeline will be connected to the Wingas-owned Haidach gas storage.


Project companies

The pipeline would be built and operated by several project companies. For the construction and operation of the offshore section of South Stream originally two companies were established, both in Zug in Switzerland with the share capital of 100,000 CHF. South Stream AG, a joint venture between Gazprom and Eni was incorporated on 18 January 2008, and South Stream Transport AG, a joint company of Gazprom, Eni, Électricité de France, and Wintershall was incorporated on 3 October 2011. Head of South Stream Transport AG is Marcel Kramer, former
chief executive officer A chief executive officer (CEO), also known as a central executive officer (CEO), chief administrator officer (CAO) or just chief executive (CE), is one of a number of corporate executives charged with the management of an organization especial ...
of the gas transportation company
Gasunie N.V. Nederlandse Gasunie (short form: Gasunie) is a Dutch natural gas infrastructure and transportation company operating in the Netherlands and Germany. Gasunie owns the Netherlands gas transmission network with a total length of over and long ...
. Executive director is Oleg Aksyutin. Gazprom owns 50% of shares of South Stream Transport AG, Eni 20%, and Électricité de France and Wintershall 15% both. In November 2012, it was decided to incorporate South Stream Transport B.V., the current project company, in
Amsterdam Amsterdam ( , , , lit. ''The Dam on the River Amstel'') is the capital and most populous city of the Netherlands, with The Hague being the seat of government. It has a population of 907,976 within the city proper, 1,558,755 in the urban ar ...
. Earlier Eni had registered in
Amsterdam Amsterdam ( , , , lit. ''The Dam on the River Amstel'') is the capital and most populous city of the Netherlands, with The Hague being the seat of government. It has a population of 907,976 within the city proper, 1,558,755 in the urban ar ...
a company named South Stream BV, but in February 2012 it was renamed Eni JPDA 11-106 BV. The Bulgarian section of the pipeline will be built and operated by a joint venture of Gazprom and Bulgargaz and the Serbian section by the joint venture of Gazprom and Srbijagas. The Hungarian section will be built and operated by the equally owned joint venture between Gazprom and the state-owned Hungarian Development Bank MFB, which will buy the elaborated feasibility study of Hungarian section from SEP Co., a joint venture of Gazprom and MOL. The Slovenia section would be built and operated by an equally owned joint venture of Gazprom and Geoplin Plinovodi. For construction of the Croatian section a 50-50 Russian-Croatian joint company would be established.


Implications


Nabucco pipeline project

The South Stream project was seen as a rival to the
Nabucco pipeline The Nabucco pipeline (also referred as Turkey–Austria gas pipeline) was a failed natural gas pipeline project from Erzurum, Turkey to Baumgarten an der March, Austria to diversify natural gas suppliers and delivery routes for Europe. The pi ...
project. Some experts like Alan Riley from London City University were claiming that the South Stream pipeline is a political project to counter Nabucco and to expand Russian presence in the region. CEO of Eni Paolo Scaroni proposed to merge Nabucco and South Stream projects to "reduce investments, operational costs and increase overall returns". This proposal was rejected by energy minister of Russia Sergei Shmatko saying that "South Stream is more competitive than Nabucco" and that "Nabucco and South Stream are far from being competitors". Also
OMV OMV (formerly abbreviation for Österreichische Mineralölverwaltung Aktiengesellschaft ('' en, Austrian Mineral Oil Administration Stock Company'')) is an Austrian multinational integrated oil, gas and petrochemical company which is headquart ...
, a partner in both projects, has said that there were no ongoing discussions about merging the projects.


Conflict with Ukraine

South Stream has been seen as diverting some gas transported through Ukraine, instead of providing a new source of gas for Europe. To avoid Ukraine's exclusive economic zone, the pipeline was re-routed through Turkish waters.


Offer to Romano Prodi

Before stepping down from the premiership, Italian Prime Minister
Romano Prodi Romano Antonio Prodi (; born 9 August 1939) is an Italian politician, economist, academic, senior civil servant, and business executive who served as the tenth president of the European Commission from 1999 to 2004. He served twice as Pr ...
received an offer from Gazprom to become the Chairman of South Stream AG. This move was compared with the appointment of the former Chancellor of Germany
Gerhard Schröder Gerhard Fritz Kurt "Gerd" Schröder (; born 7 April 1944) is a German lobbyist and former politician, who served as the chancellor of Germany from 1998 to 2005. From 1999 to 2004, he was also the Leader of the Social Democratic Party of Germa ...
to lead
Nord Stream AG Nord Stream AG is a consortium for construction and operation of the Nord Stream 1 submarine pipeline between Vyborg in Russia and Greifswald in Germany. The consortium was incorporated in Zug, Switzerland, on 30 November 2005. The original ...
, a consortium operating the Nord Stream 1 pipeline. Prodi has declined this offer. According to the Prodi's spokesman "Prodi was extremely flattered, but reiterated that he wants to take some time off to ponder after leaving Italian politics."


Stroytransgaz contract

In May 2014, it was disclosed that the contract for construction of the Bulgarian section was awarded to Stroytransgaz, a company controlled by Gennady Timchenko though his Volga Group. Earlier Timchenko was included in the sanctions list in the wake of the Russian annexation of Crimea due to his close ties with President Putin.


See also

* *
Balkan Stream Balkan Stream is a pipeline which transports Russian natural gas from Turkey to Bulgaria, Serbia and Hungary. It is an extension of Turk Stream. Annual capacity is almost 16 bcm from Turkey and 1.8 bcm onwards to Serbia. The project is headed a ...
* * * * * * * * * *


References


External links


South Stream official Web site

South Stream AG

Projected Gas Routes to Europe



Republic of Macedonia Agrees To Join South Stream
{{Black Sea Energy Natural gas pipelines in Russia Natural gas pipelines in Italy Natural gas pipelines in Bulgaria Natural gas pipelines in Serbia Natural gas pipelines in Slovenia Proposed pipelines in Europe Gazprom pipelines Eni Électricité de France Pipelines under the Black Sea Black Sea energy Cancelled energy projects