Debt managers, who had planned to sell 500 million lei, last issued the paper last month at an average yield of 4.36 percent.
Earlier this week, the European Union state raised 1.5 billion euros in a 10-year Eurobond issue, pre-financing some of its funding needs for next year.
It tapped foreign markets twice in the first galf.
So far this year, Romania has sold just under 31 billion lei and 930 million euros at domestic debt tenders.