The Sakhalin-2 project is an oil and gas development in Sakhalin Island, Russia. It includes development of the Piltun-Astokhskoye oil field and the Lunskoye natural gas field offshore Sakhalin Island in the Okhotsk Sea, and associated infrastructure onshore. The project is managed and operated by Sakhalin Energy Investment Company Ltd..

Sakhalin Energy Investment Company Ltd. is a consortium for developing the Sakhalin-2 oil and gas project with corporate head office in Yuzhno-Sakhalinsk. Roman Dashkov has been the Chief Executive Officer since 2013.