While high prices are denting demand, miners, oil companies and farmers are struggling to boost supply enough to resolve the tightness in the market.

尽管价格高企削弱了需求，但在另一方面，矿商、石油企业和农场主难以增加供应以解决市场的紧张。

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CERA hedged its predictions of supply tightness with uncertainty about the rate at which world oil demand will recover after the recession.

虽然CERA预测说未来可能出现原油供应紧张，但它也表示，无法确定经济衰退结束后世界石油需求将会以多快的速度反弹。

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'the IEA says that despite the high oil price, market tightness will increase from 2009, because new capacity additions won't keep up with reduced capacity from existing fields,' he said.

田中伸男说，国际能源署认为，尽管油价已处于高位，但从2009年起石油市场供应紧张状况还将加剧，原因是新增加的原油生产能力低于现有油田减少的生产能力。

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The tightness of the oil market has become, in effect, a line of defence for Iran, letting its radical leadership hint, truthfully, that any hostile act that may impede the flow of Iranian oil would risk a global economic decline.

ECONOMIST: Why the Saudis are worried about the high price of crude

That tightness inevitably buoyed oil prices.

ECONOMIST: How OPEC's fear of $5 oil led to $50 oil

In 2012, the growth of U.S. oil supply saved the market from significant supply-side tightness given the scale of non-OPEC supply disappointments elsewhere, like in Brazil.

FORBES: Oil Not Going To $50 Any Time Soon