The full report is available in PDF format at: ftp://ftp.eia.doe.gov/pub/oiaf/1605/cdrom/pdf/ggrpt/057307.pdf

The most recent full documentation for the data and methods used to calculate these emissions estimates:
http://www.eia.doe.gov/oiaf/1605/ggrpt/documentation/pdf/0638(2006).pdf

The full HTML version of the report will be available in the near future.

The Emissions of Greenhouse Gases in the United States 2006 report has been archived and is available at: http://www.eia.doe.gov/oiaf/1605/1605aold.html