World oil prices have more than doubled since the beginning of 2004 and the consequences are being felt around the world. We spoke to Vandana Hari, a Singapore-based Asian oil and gas analyst for energy market information provider, Platts, about what's causing the oil price surge.

Increased demand The demand surge has been fuelled by strong economic growth in China and India. More »   Refining capacity There has been a lack of investment in new refining capacity. More »   Supply uncertainties Geo-political uncertainties plague some of the major oil exporters. More »   Speculation Speculators gambling on the future price of oil are blamed for some price increases. More »   Hurricane season Hurricane Katrina has left four major US refineries with major damage. More »   The future If high prices continue, demand will slow, allowing supply to catch up. More » By following the links you will go to ABC Australia's Full article at:  http://www.abc.net.au/ra/news/profiles/s1467117.htm