Sakhalin-2 shareholders could decide on an expansion of the Russian LNG export scheme this year.
Chief executive Andrey Galaev said the Gazprom-led export project's additional volumes could begin to flow between 2016 and 2018, according to Bloomberg News.
The project is expected to cost between $5 billion and $7 billion.
Gas prices fluctuations could bring the final price tag beyond that range, Galaev said.
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