Buy ETF for Energy Crisis Hedge

http://en.wikipedia.org/wiki/2000s_energy_crisis

I am reading the Wikipedia article above on the energy crisis that ended in 2009. During this time, oil prices skyrocketed.

Thankfully the bubble burst and oil is now around $60, although lately it has gone up to $100 per barrel, which makes me worried about another energy crisis.

On the ASX now there is a firm called Betashares that sells ETF with ticker symbol OOO that tracks the price of oil through futures contracts. I am thinking of buy some to prepare for possible stagflation in the future.