More than one-quarter of the world's oil and almost one-fifth of the world's natural gas come from offshore, even though offshore drilling is six to seven times more expensive than drilling on land.

全球超过四分之一的石油和近五分之一的天然气来自近海，尽管近海钻探的成本是陆地钻探的六到七倍。

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Norway is a nation of astonishing wealth, built on vast offshore reserves of oil and natural gas.

挪威是一个惊人的富裕国家，拥有储量巨大的近海石油和天然气。

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Oil prices rose, boosting export income despite the fall in volumes; and Egypt began to discover and tap big reserves of natural gas, particularly offshore, north of the Nile delta.

油价上涨，尽管出口量减少了，但收入仍旧增加了；而且埃及渐渐发现并开始开采大量藏储的天然气，特别是在尼罗河三角洲北面的近海地区。

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The Tennessee senator also wants more exploration for offshore oil and natural gas, and more conservation and efficiency in electricity use.

VOA: standard.2009.04.25

The amounts of offshore oil and natural gas are stupendous.

FORBES: Let the People Do It

And its newly discovered offshore fields of oil and natural gas may turn out to be bigger than those in the North Sea in the 1960s.

ECONOMIST: Brazil

Suppose for a moment that Congress listens to President Bush's remarks Wednesday and removes the decades-old ban on offshore drilling for oil and natural gas on the Outer Continental Shelf.

FORBES: Magazine Article