Capital increase of DUG AM

Date

24/03/2006

Notice Number

06/0274

NOTICE N.º 0274/06

We hereby inform that, on 23^th March, 2006, 1.400.000 shares, with a nominal value of 1,00 EUR each, were registered, representing the increase of the share capital from 3.550.000,00 to 4.950.000,00 EUR of DURIENSEGÁS - Sociedade Distribuidora de Gás Natural do Douro, S.A., under the code DUG AM.

INTERBOLSA, 24^th March, 2006