Sakhalin-II
| Piltun-Astokhskoye oil field Lunskoye natural gas field | |
|---|---|
| Country | Russia | 
| Region | Sakhalin | 
| Offshore/onshore | offshore | 
| Coordinates | 52°52′12″N 143°46′12″E / 52.87000°N 143.77000°E | 
| Operator | Sakhalin Energy | 
| Partners | Gazprom, Mitsui & Co., Mitsubishi Corporation | 
| Field history | |
| Discovery | 1984 (Lunskoye); 1986 (Piltun-Astokhskoye) | 
| Start of development | 1994 | 
| Start of production | 1999 | 
| Production | |
| Current production of oil | 395,000 barrels per day (~1.97×107 t/a) | 
| Current production of gas | 53×106 m3/d (1.9×109 cu ft/d) | 
| Estimated oil in place | 1,200 million barrels (~1.6×108 t) | 
| Estimated gas in place | 500×109 m3 (18×1012 cu ft) | 
| Producing formations | Astokh feature | 
The Sakhalin-2 (Russian: Сахалин-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).
Sakhalin-2 includes the first liquefied natural gas plant in Russia. The development is situated in areas previously little touched by human activity, causing various groups to criticize the development activities and the impact they have on the local environment.