When the price of oil is low, exploration and production is expensive, but companies can rely on retail assets such as gas stations to benefit from the high profit margins at the pump.

油价低伏时，勘探和生产就变得昂贵，但这些公司却能依靠加油站这类零售资产获得高额利润。

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Oil exploration and production assets are now in Marathon Oil Corp., while its downstream assets, such as petroleum products, went to Marathon petroleum Corp.

石油勘探和资源属于现在的Marathon Oil Corp，而它下游的资产如石油产品则归到Marathon Petroleum Corp。

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The advantages of the slim hole such as reducing cost of drilling, eliminating the risk of the exploration as well as being beneficial to the environment has caught oil field's attention.

小井眼具有可降低钻井成本，减小勘探风险，有利于环保倍受石油界广泛重视。

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The Saudi Government has less money and less need for landmark projects, some key industries - such as oil exploration and production - have been nationalised and the local workforce has developed to the point where the country needs foreign capital and expertise rather than foreign workers.

BBC: NEWS | Business | Saudi Arabia's foreign workforce

Its real environmental impact is the result of loans it makes to big projects, such as dams, oil exploration and mines.

BBC: NEWS | Business | HSBC bank to go carbon neutral

Hague said Argentina sought to present itself as reasonable but that recent Argentine governments had taken "a less constructive approach" in discussions on other questions, such as fishing and oil exploration.

CNN: STORY HIGHLIGHTS