Exxon, the world's most valuable company, discovered oil and gas in a field off Vietnam, the Wall Street Journal reported Oct. 25.

埃克森美孚是世界上最有价值的公司，据《华尔街日报》10月25日报道，该公司在越南近海海域发现了石油和天然气。

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Looking to reduce their costs and maintain access to supply, oil and gas producers have been investing in water conservation and recycling efforts, the Wall Street Journal reported last year.

去年华尔街日报曾报道，油气生产商为了降低成本、维持油气供应量，在水资源保护和废水循环利用方面投入了许多金钱和精力。

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