And the proof is our oil imports are down to the lowest levels in 20 years.

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The big caveat to all of these findings and others is that, while decent correlations have materialized in a few credible studies, we still do not have definitive proof that fish oil is the incredible brain elixir its manufacturers would have us believe it is.

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But now, with this proof of concept, Oil Creek Valley and the surrounding region erupted in the first oil boom.

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But the real thing to be excited about here is that Amarin may gather hard proof that giving fish oil to people with high triglycerides lowers their risk of heart attacks.

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Iranians often see cheap petrol as proof that the government is redistributing oil wealth back to the people one of Mr Ahmadinejad's big election promises.

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Rising oil prices amidst increasing supply and falling demand is proof of U.S. dollar weakness and portends stagflation.

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On the other hand, in just 20 years, Dubai has successfully transformed itself from a small-scale oil producer into a regional services hub proof that riches and determination can pull off the most improbable schemes.

ECONOMIST: Finance in the Gulf

But others held it up as convincing proof of the notion that the world's oil production would soon reach a pinnacle, never to be exceeded.

ECONOMIST: Face value