The issue carried a coupon of 6.75%, Dragoi told Mediafax.
Investors offered almost $7 billion, the highest offer to date for US dollar-denominated bonds issued by a country in central and eastern Europe.
Citigroup, Deutsche Bank and HSBC managed the sale.
This was the second auction of a EUR7 billion medium-term notes program Romania has launched in 2010. The first issue has brought the country EUR1.5 billion following a 5-year bond sale at an annual yield of 5.29%.