Despite its vast crude-oil resources, Iran has been dealing with a chronic shortage of gasoline and other refined oil products.

尽管伊朗拥有巨大的原油蕴藏，但是伊朗长期缺少石油和其他精炼石油产品。

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Enhancing the crude oil recovery of developed field is an effective way to relieve oil shortage while the new oil fields are being looked for.

在继续寻找发现新油田的同时，努力提高已开发油田的原油采收率是缓解原油短缺的有效途径。

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Because the market for crude oil is international in scope and cannot be controlled by any government, there can never be a true shortage of crude oil.

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Despite the rapidly rising prices, there was no shortage of crude oil to justify the run up of price in the commodities pits.

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Bush and Obasanjo were scheduled to retire to the White House shortly after the Rose Garden announcement to discuss a wide variety of issues -- most notably Bush's hope to convince OPEC to boost its daily per-barrel production of crude oil, as the U.S. anticipates a supply shortage heading into the summer.

CNN: Obasanjo