I believe the standard daily rate for an unplanned night stop is unchanged at 450 NKR a day, which does not buy much (in the way of beer). Then again, 'a' company would probably argue that buying crews beer is not part of their responsibility.
I have also heard that the offshore allowance for 2 and 2 is £75 per diem plus double at weekends. Plus the conditions of a Norwegian platform. Nice work if you can get it!
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Another day in paradise