Eaton Vance National Municipal Opportunities Trust Report of Earnings Of $0.308

Eaton Vance National Municipal Opportunities Trust EOT), today announced the earnings of the Trust for the three and nine-month periods ended December 31, 2010. The Trust's fiscal year ends on March 31, 2011.

For the three months ended December 31, 2010, the Trust had net investment income of $4,702,561 ($0.308 per common share).

The Trust's net investment income for the nine months ended December 31, 2010 was $14,144,116 ($0.926 per common share).

In comparison, for the three months ended December 31, 2009, the Trust had net investment income of $4,741,189 ($0.310 per common share).

The Trust's net investment income for the period from the start of business, May 29, 2009, to December 31, 2009 was $10,427,420 ($0.692 per common share).