Bougainville
Biodiesel is produced from Copra oil (oil extracted from coconuts) in a processing plant at Buka on the island of Bougainville, vehicles which run on this fuel have a sticker on the doors which says "powered by Coconuts". This fuel is cheaper and more readily available than imported PetroDiesel. The oil-company StatoilHydro has recently started to distribute biodiesel too.
Read more about this topic: Biodiesel By Region, Papua New Guinea