US imports of petroleum and related products in the 1980s |
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Authors: | Barney Warf |
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Institution: |
a Department of Geography, Kent State University, Kent, OH, USA |
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Abstract: | Petroleum and related goods account for an enormous share of international maritime trade. For the United States, the world's largest energy consumer, imports of petroleum and related products are a vital connection to foreign suppliers. This paper illustrates cartographically the geographic structure of imports of three major petroleum-related commodities—crude petroleum, refined petroleum products, and natural gas—and their changes in the 1980s. Lorenz curve and Gini coefficient analyses reveal a modest deconcentration of crude petroleum within the US port system, an increasing concentration of petroleum products, and a relatively volatile geography of natural gas imports. |
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