Price of Gas/Diesel in various islands

[mclearn]

I'm just curious if anyone knows the price of diesel/gas in the various islands in the South Pacific? I've been to Vanuatu before (2006) and I'm curious how the local economy (there, or anywhere) is weathering the recent spate of oil/gas price increases. Port Vila, of course, where every car is a taxi, and island hopping by the Ni-Vanuatu is almost exclusively, if ever done, by large ships.

Thanks,
~greg