Just over two years http://xvedio.in.net xvedios This is what the industry has been waiting for. Ãrjan Heradstveit, a spokesman for the state oil company Statoil, says the decline in production in Norway's existing fields means it is essential to start looking at alternatives as soon as possible. âWith up to 10-15 years from exploration to production, a political decision on an impact assessment for this area is crucial,â he said.