PoliticsOslo government under cosh in denouement on tax talksSpecial tax uplift set to be raised to secure breakeven price for new field projects as opposition parties turn screws ahead of imminent parliamentary decisionApplying pressure: Hadia Tajik, deputy leader of the Labour Party that holds the key to a majority decision to improve the oil tax packagePhoto: PER STAALE BUGJERDE/DNOle Ketil HelgesenStavanger