 In 1960, the Oslo City Council decided to gradually close the tramway. New trams had been delivered in 1958, and it was decided that lines would only be closed as trams were naturally retired. At the time Oslo Sporveier had 421 vehicles. By 1974, the company had 163 vehicles, of which 100 were powered trams, 43 were trailers and 20 were working trailers. Following the energy crisis in the 1970s, the political climate changed, and in 1977 the city council decided to not close the tramway anyway. Between 1978 and 1981, ten tram vehicles were bought from the Gothenburg Tramway.
