Central Asia–Center Gas Pipeline

From Global Energy Monitor
This article is part of the Global Fossil Infrastructure Tracker, a project of Global Energy Monitor.

Central Asia-Center Gas Pipeline, CAC (Russian: Магистральный Газопровод Средняя Азия - Центр, САЦ) is an operating gas pipeline in Turkmenistan, Uzbekistan, Kazakhstan and Russia.[1]


CAC-2, 4, 5

The pipelines start at the Dauletabad Gas Field, Mary Province, Turkmenistan, and run to Voskresensk, Moscow Oblast, Russia.[1] From Alexandrov Gai, Russia, two lines run northwest to Moscow, and the third line continues along the same route as CAC-3.[2]

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The pipeline runs from Okarem, Balkan region, Turkmenistan, to Beyneu, Mangystay region, Kazakhstan (Okarem-Beyneu Gas Pipeline), and to Gubkin, Belogorodsk Oblast, Russia.[1]

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Project Details





  • Operator: Turkmengaz,[3] Intergas Central Asia,[4] Gazprom,[1] Uztransgaz[5]
  • Owner: Gazprom[6]
  • Parent Company: Gazprom[6]
  • Capacity: 60.2 bcm/year (total for the pipeline)[7]
  • Length:
  • Diameter: 1,220 mm, 1,420 mm[2][8]
  • Status: Operating[2]
  • Start Year: 1985[9]
  • Cost:
  • Financing:
  • Associated infrastructure: Makat-North Caucasus Pipeline


The Central Asia-Center (CAC) Gas Pipeline System was built between 1960 and 1988[10]. The system consists of gas pipelines, which run from Turkmenistan via Uzbekistan and Kazakhstan to Russia. The pipeline system is connected via Makat-North Caucasus Gas Pipeline to the Caucasus and via Okarem-Beyneu Gas Pipeline to western regions of Turkmenistan.[8]

The eastern branch includes CAC-2, 4 and 5 gas pipelines, which start from the south-eastern gas fields of Turkmenistan. CAC-1 was retired due technical issues. The western branch consists of the CAC-3 gas pipeline. Almost all Uzbek and Turkmen natural gas is delivered through the CAC pipeline system, mainly through the eastern branch due to location of production sites and poor technical condition of the western branch.[2]

After the collapse of USSR, the successor states signed multiple contracts on cooperation in maintaining existing gas infrastructure, including the newly transboundary Central Asia–Center Gas Pipeline.[11][12][13] The main function of the pipeline is to transport Turkmen gas from Dauletabad and Okarem gas fields to Russia.[1] However, there have been disagreements between Russia and Turkmenistan that occasionally led to the halt in the operations of the pipeline, most recently in 2016. The gas supply resumed in 2019.[11]


The eastern branch starts from the Dauletabad gas field in Turkmenistan and continues through the Shatlyk gas field east of Tejen, Turkmenistan, to Khiva, Uzbekistan. From there the pipeline system transports gas north-west along Amu Darya to the Kungrad compressor station in Uzbekistan. From Kungrad, most of the gas is carried via Kazakhstan to Beyneu, Kazakhstan, before crossing the Kazakhstan-Russia border in Alexandrov Gai in Russia.[2]

The western branch originates in Okarem on the Caspian Sea coast of Turkmenistan near the Turkmenistan–Iran border and runs north. It is supplied by gas from fields scattered along the Caspian coast between Ekerem and Balkanabat. The pipeline continues via Uzen in Kazakhstan to the Beyneu compressor station (Okarem-Beyneu gas pipeline), where it meets the eastern branch of the CAC.[2]

CAC-2 and CAC-4 have looping pipelines.[8]

In Alexandrov Gai, the CAC pipelines meet with Soyuz and Orenburg–Novopskov gas pipelines. From there two lines run northwest to Moscow, Russia, and two others proceed across the Volga river to the North Caucasus-Moscow transmission system.[2] It is unclear which pipelines of the eastern branch run to Moscow.

Articles and resources


  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 "Energy Base," Accessed August 22, 2020
  2. 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 "Central Asia–Center gas pipeline system," Karakalpakstan Blog, March 13, 2017
  3. 3.0 3.1 3.2 3.3 "Туркменистан рассчитывает на экспортные возможности газопровода Средняя Азия-Центр". Национальная ассоциация нефтегазового сервиса. 2017-06-03. Retrieved 2022-07-20.{{cite web}}: CS1 maint: url-status (link)
  4. 4.0 4.1 4.2 4.3 "Информация по сотрудничеству с ОАО «Газпром»". samruk kazyna. 2011. Retrieved 2022-07-20.{{cite web}}: CS1 maint: url-status (link)
  5. 5.0 5.1 5.2 5.3 ""Газпром" и Узбекистан подписали соглашение о транспортировке газа". Ведомости (in русский). Retrieved 2022-07-20.
  6. 6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 "Туркменистан рассчитывает на экспортные возможности газопровода Средняя Азия-Центр". Национальная Ассоциация Нефтегазового Сервиса. 2017-06-03. Retrieved 2022-07-21.{{cite web}}: CS1 maint: url-status (link)
  7. 7.0 7.1 7.2 "СОСТОЯНИЕ И ПЕРСПЕКТИВЫ РАЗВИТИЯ ТРАНСПОРТА НЕФТИ И ГАЗА КАЗАХСТАНА" (PDF). НЕФТЬ И ГАЗ. March 2019. Retrieved August 25, 2023.{{cite web}}: CS1 maint: url-status (link)
  8. 8.0 8.1 8.2 8.3 8.4 "Газопроводы Казахстана" (PDF). library.tou.edu.kz. January 2013.{{cite web}}: CS1 maint: url-status (link)
  9. 9.0 9.1 9.2 9.3 9.4 9.5 9.6 "Рождение легенды: строительство трансконтинентальной системы газопроводов «Средняя Азия — Центр»". Gazprom Transgaz Saratov. Retrieved August 23, 2023.{{cite web}}: CS1 maint: url-status (link)
  10. "Самые длинные газопроводы в мире". БКС ЭКСПЕСС. May 2, 2022. Retrieved August 23, 2023.{{cite web}}: CS1 maint: url-status (link)
  11. 11.0 11.1 "Партнеры не без упреков". Interfax.ru (in русский). 2009-04-10. Retrieved 2022-07-21.
  12. "Информация по сотрудничеству с ОАО «Газпром»". Samruk Kazyna. Retrieved 2011-06-11.{{cite web}}: CS1 maint: url-status (link)
  13. "Поставщики среднеазиатского газа согласовали диспетчерское соглашение" (in русский). Retrieved 2022-07-21.