(Sakhalin-2 is off Russia’s Pacific coast)
Russia has suspended vital permits for Royal Dutch Shell’s Sakhalin-2 oil and gas venture, in a move that may further delay the $22bn (£11bn) project.
The suspension of 12 water use licences comes two months after Moscow revoked environmental approval for the venture.
Analysts say Moscow’s latest move is part of a campaign against Sakhalin-2 until Russia gets more involvement.
At present, the venture off Russia’s Pacific coast is run by Anglo-Dutch Shell and two Japanese oil firms.