Preliminary monthly data on the origins of crude oil imports in February 2008 has been released and it shows that two countries exported more than 1.50 million barrels per day to the United States. Including those countries, a total of three countries exported over 1.20 million barrels per day of crude oil to the United States (see table below). The top five exporting countries accounted for 70 percent of United States crude oil imports in February while the top ten sources accounted for approximately 88 percent of all U.S. crude oil imports. The top sources of US crude oil imports for February were Canada (1.888 million barrels per day), Saudi Arabia (1.614 million barrels per day), Mexico (1.231 million barrels per day), Nigeria (0.982 million barrels per day), and Venezuela (0.927 million barrels per day). The rest of the top ten sources, in order, were Iraq (0.780 million barrels per day), Angola (0.341 million barrels per day), Kuwait (0.261 million barrels per day), Colombia (0.220 million barrels per day), and Ecuador (0.169 million barrels per day). Total crude oil imports averaged 9.514 million barrels per day in February, which is a decrease of (0.486) million barrels per day from January 2008.
Canada remained the largest exporter of total petroleum in February, exporting 2.419 million barrels per day to the United States, which is a decrease from last month (2.586 thousand barrels per day). The second largest exporter of total petroleum was Saudi Arabia with 1.627 million barrels per day.
http://www.eia.doe.gov/pub/oil_gas/petroleum/data_publications/company_level_imports/current/import.html