Share Capital Redenominated into Euro

Tullow Oil PLC
11 November 1999


Tullow Oil  plc announces that pursuant to a resolution  passed by
shareholders at the Company's Annual General Meeting held on 27th August  1999
the Company's Irish Pound denominated share capital  has been redenominated
into Euro. 

The authorised and issued Ordinary Shares of nominal value IR10 pence each
have been adjusted to Ordinary Shares of nominal value EUR0.13 each.
This adjustment does not alter the number of Ordinary Shares in issue and 
existing share certificates continue to be valid.


For further information contact:
Matt Maher                     Phone: [phone]
Company Secretary