You guys are using different definitions of socialism. Norway has a market economy with a strong welfare state. Venezuela follows a central planning model where the currency exchange rate and commodity prices are set and enforced by the government. What is happening to Venezuela is not surprising to anyone. It's Economics 101. The fix is to give up control and let prices float freely. It will be painful in the short-term, because they dug themselves into this hole, but it will get better.
Quick note; economic freedom is expected to reach %100 in socialism too, as the necessity of planning should reduce over time. Even if it is an obivious indicator, I recommend against using it as a "socialism detector".
Very small society with high social and ethnic cohesion and trust and guaranteed oil income is able to make welfarism work. I don't think you can derive many broader lessons from that.
Are you referring to Statoil only or the entire Norwegian economy? Are you implying that the vast majority of supermarkets and restaurants in Norway are owned by the government?