Corporate Action

Tullow Oil PLC
31 July 2000

ENTITLEMENT ISSUE
SECURITY TITLE
*Ord Shs
MNEMONIC CODE           *TLW
SEDOL CODE              *912-428
TERMS                   *1 New Ordinary share for every 7 Ordinary shares held  
                        at 57.5p 
EX DATE                 *To be restored ex in the title
RECORD DATE             *24-07-00
SPLITTING APPLICATION FORMS *18-08-00 3:00pm
RECEIPT OF APPLICATION FORMS *22-08-00 3:00pm
DEALING COMMENCE NEW SHARES *29-08-00
NOTES *