Most expensive boozers are around Karl Johan Gate and Aker Brygge. The price of 100 NOK is around £7.80 as exchange rate is around £1 = 12.7 NOK. Prices are around 80 m NOK to 120 NOK. Pubs around Grønland and Grünerløkka about 5 - 15 mins from Sentrum/Rail Station can be cheaper. Indoor street food can be found at Torgatta (Sentrum) and Vippa (Harbour) - lots of cheaper eateries and beer is sold. I've never been back to the Scotsman Pub in Karl Johann since they banned a piper 20 years ago, it's a fairly shitey pub anyway. Dovrehallen (upstairs) is very old Norwegian and Cafe Sara has great beer selection as does nearby Crow bar and Schouss Brewery. The 'browner' the pub, the cheaper the price. Also the boozer upstairs in the main hall of the rail station is pretty good. Best futba pub is Bohemen. Some good pubs in the city of Drammen which is about 30 minutes by a regular train service - Drammen home to Stromgodset FC.