Although the production of crude oil grows rather slowly in recent years. the onshore oil re - mains to be the main resource for Chinese petroleum industry.

虽然近年原油产量增长不快，但陆上原油仍然是我国石油工业的主要资源。

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Along with the appearance of concept of cavernous reservoir and theory of petroleum system, hydrogeo logical analysis will play a great role in reservoir prediction re-search.

随着岩溶型储层概念和含油气系统理论的提出，古水文地质分析工作在储层预测研究中将发挥更大的作用。

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Tectonic inversion may re-suit in various effects on petroleum accumulation and exploration.

构造反转可对油气聚集和油气勘探造成多方面的影响。

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In re Occidental Petroleum Corp.

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What is less apparent is the extra money you're spending on petroleum everywhere else.

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"If you're disclosing and the other guy doesn't have to, you're not really on a level playing field, " says Chris Joyner, a spokesman for the American Petroleum Institute (API), an industry group for oil and natural gas companies.

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