"America is still the world's largest importer of crude oil. From January to October, the country imported 2.7 billion barrels of oil worth roughly $280 billion."
"Fuel exports, worth an estimated $88 billion in 2011 ..."
http://www.usatoday.com/money/industries/energy/story/2011-1...
From what I could find, we export around $30x billion worth of plastic per year, and import around $12 to $15 billion worth of plastics.