1. Facts 2012 – the Norwegian petroleum sector;Norwegian Ministry of Petroleum and Energy,2012
2. Petrofacts 2007; Faktaheftet 2007;Baekken,2007
3. Offshore processing options for oil platforms;Bothamley,2004
4. Energy use in offshore oil and gas production: trends and drivers for efficiency from 1975 to 2025;Vanner,2005
5. Environmental regulations and measures on the Norwegian continental shelf;Svalheim,2002