Refineries in the area produce almost a quarter of the transportation fuel used in the United States and Houston's port is the second busiest in the nation, when operating normally.

休斯顿炼油厂生产的汽油占全美运输燃料的四分之一，而休斯顿港在正常情况下，是美国第二大繁忙的港口。

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In one example, the Finance Ministry and Chinese refiners are deadlocked in negotiations over subsidies to help offset the higher costs of upgrading and operating refineries that produce cleaner diesel fuel, according to Gong Huiming, transportation director at the Energy Foundation, a nonprofit that focuses on U.S.-China energy issues.

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Operating largely without oversight, Mattei built refineries and chemical plants, and pipelines reaching as far as Bavaria.

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The remaining refineries geared toward heavier sour crudes are already operating near capacity.

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