After the frigg treaty the European directive and the arrival of NorfraMELLBYE, P.European Autumn gas conference. 1998, 24 p.Conference Paper

From a single field supplier to an integrated energy system. The Norwegian gas developmentMELLBYE, P.Proceedings of the Sixteenth World Petroleum Congress. 2000, pp 59-65, isbn 085293-293-6Conference Paper

Norway'role, satisfying increasing demand for natural gas in EuropeMELLBYE, P.World Petroleum Congress. 1994, pp 575-580, isbn 0-4719-5035-1Conference Paper

No more MR Nice Guy : Norway's place in Europe's changing supply pictureMELLBYE, P.Annual European autumn gas conference. 1999, 25 p.Conference Paper

Point de vue sur l'industrie énergétique en 1995 et stratégie d'un grand groupe = Point of view on the energetical industry in 1995 and strategy of a large groupMELLBYE, P.Panorama 96. 1996, pp 73-102Conference Paper

Norway's infrastructure: options for the next generation of gas supplyMELLBYE, P.European Autumn gas conference. 1994, 36 p.Conference Paper

Point de vue sur l'industrie énergétique en 1995 et stratégie d'un grand groupe = Point of view on the energy industry in 1995 and a major group strategyMELLBYE, P.Panorama. Colloque. 1996, pp 73-102, isbn 2-901638-00-7Conference Paper

Norwegian natural gas supplies to EuropeMELLBYE, P; TUNGLAND, K.International LNG/LPG conference. 1994, isbn 1-874134-06-5, 3Vol, Vol. 2, 1-8Conference Paper