Banks offered RON4.12 billion, central bank data showed.
At the previous similar auction June 20, the ministry sold RON1.4 billion in one-year paper at an average annual yield of 6.65%.
The ministry plans to sell debt worth RON4 billion in July, up from RON3.7 billion sold a month earlier.
So far this year, Romania sold roughly RON31 billion in leu-denominated state notes. Additionally, a three-year foreign currency bond auction held May 4 has brought the ministry EUR939.2 million, while an international debt sale early June raised EUR1.5 billion. (EUR1=RON4.2217)