From Wikipedia:
The economy of Norway is a highly developed mixed economy with state-ownership in strategic areas. Although sensitive to global business cycles, the economy of Norway has shown robust growth since the start of the industrial era. The country has a very high standard of living compared with other European countries, and a strongly integrated welfare system. Norway's modern manufacturing and welfare system rely on a financial reserve produced by exploitation of natural resources, particularly North Sea oil.
Can you give me examples of socialism working?