Demand from emerging markets, instability in the Middle East, geopolitics - all have conspired to raise oil prices at a time when the global economy needs it least. Javier Blas, commodities editor, reports from the FT's Global Commodities Summit on why costs are hanging at around $100 a barrel and why many leading traders now see this as a floor for the price of oil.
Produced by Seb Morton-Clark. Filmed by Steve Ager. Additional footage: Reuters.