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Russia: Sakhalin 1 Project


This is a project to develop and produce oil and natural gas in the Chayvo, Odoptu, and Arkutun-Dagi fields off the east coast of Sakhalin Island, Russia.

JAPEX invests in Sakhalin Oil and Gas Development Co., Ltd. (SODECO), which is a member of the Sakhalin-1 Project.


  • In production: crude oil and natural gas


Offshore production facility of Arkutun-Dagi

Basic Information

  • Name: Chayvo, Odoptu and Arkutun-Dagi
  • Location: Offshore Northeast coast of Sakhalin, Russia
  • Project Company: Sakhalin Oil and Gas Development Co., Ltd. (SODECO: JAPEX equity method affiliate)
    • JAPEX investment ratio to SODECO: 15.285%


Location of Sakhalin1 (Offshore Northeast coast of Sakhalin, Russia)


  • June 1995: A production sharing agreement (PSA) was signed between the Russian government and the participating companies.
  • October 2005: Started crude oil production at the Chayvo oil and gas field.
  • September 2010: Started crude oil production at the Odoptu oil and gas field.
  • January 2015: Started crude oil production at the Arkutun Dagi oil and gas field.

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