The US does use it's own petroleum sources. It doesn't produce enough for it's own demands. Petroleum exported by the US is not in as high a demand within the US.
The US has the most petroleum. However, demand is so high that the US has to import most of the petroleum it consumes.
The official reason is national security, so that the US petroleum reserve can be maintained for use in the case of war.
The US has a great deal of petroleum, and deposits are located all over the US.
Transport - with 70% of Petroleum use in 2007. See the EIA info at : http://www.eia.doe.gov/neic/infosheets/petroleumproductsconsumption.html
reduced use of petroleum
Yes. Gasoline is 46% of the US's use of oil.
Yes. Gasoline is 46% of the US's use of oil.
The US imports more oil and petroleum products than it produces domestically.
reduced use of petroleum
In the US, petroleum accounts for about 35% of total energy consumption. This includes its use in transportation, heating, and industrial processes. Oil remains a significant source of energy despite efforts to diversify towards cleaner alternatives.
how else is petroleum used in the united states
The US consumed 7,136,255 barrels of total crude oil and petroleum products in 2008.