Iraq ranks second in the world for recoverable oil reserves, which is equal to the combined total of the former Soviet Union, the United States and Europe.

伊拉克的剩余可采石油储量在世界上位居第二，在数量上相当于原苏联地区、美国和欧洲三大地区的总和。

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And much of the CO2 that causes this problem derives from oil and gas made less scarce by the reserves now recoverable from below it.

引起这个问题的大部分二氧化碳是从石油和天然气中产生的，而从海底重新得到的能源储备也是的它们不再那么稀缺了。

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To improve crude oil recovery and increase economic recoverable reserves, we have to convert to steam flooding.

为进一步提高油藏采收率，增加经济可采储量，有必要转换。

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They are estimated to contain recoverable oil reserves of more than 45 million barrels.

BBC: Dana Petroleum awards $300m contract to Subsea 7

The President has recently also asked his -- or directed his Department of Interior to ensure that 75 percent of the recoverable oil reserves are being developed.

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The US Geological Survey estimates that the Arctic has around a quarter of the world's undiscovered and recoverable oil and gas reserves.

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