| Name | Date | Language | Download |
| Petoro perspektiv | 26.08.08 | English | Click here |
| Annual report on the natural environment 2007 | 24.06.08 | English | Click here |
| Technology and implementation | 27.01.05 | English | Click here |
| Kostnadsrapport fra Kon-kraft | 09.03.04 | Norwegian | Click here |
| Petoro Perspektiv | Autumn 2002 | English | Click here |
| Petoro Perspektiv | Høsten 2002 | Norwegian | Click here |
