Sakhalin-II, located on the northeastern shelf of Sakhalin Island in the Okhotsk Sea, is one of the world’s largest integrated, export-oriented oil and gas projects, as well as Russia’s first offshore gas project. Sakhalin-II includes the first liquefied natural gas plant in Russia. The Sakhalin-I project, a sister project to Sakhalin-II, is a consortium for production of oil and gas on Sakhalin Island and immediately offshore. It operates three fields in the Okhotsk Sea: Chayvo, Odoptu and Arkutun-Dagi. ENKA was involved in the construction of Sakhalin-II and Sakhalin-I Chayvo onshore processing facilities and Sakhalin-I De-Kastri oil export terminal during the period of 2003-2009. The projects were successfully completed with a total of 34 million person-hours worked.