Director/PDMR Shareholding

Tullow Oil PLC
07 April 2006

                   Tullow Oil plc ('Tullow' or 'the Company')

                               Director Dealings

The Company announces details of the following exercises of options and related
sales of ordinary shares of 10p each ('Ordinary Shares') by certain directors of
the Company:

 A. Matthew O'Donoghue, General Manager Projects and an executive director of
    Tullow, held options over 490,360 Ordinary Shares which were granted on 11
    April 1996 under the terms of the Tullow 1988 Executive Share Option Scheme
    and were exercisable up to 10 April 2006. These options had an exercise
    price of EUR 1.0031 per Ordinary Share.

         On 6 April 2006, Mr O'Donoghue exercised these 490,360 options and sold
    256,860 Ordinary Shares at 343.4p per share to fund the exercise price, tax
    and associated transaction costs payable as a consequence of the exercise
    and sale. The balance of 233,500 Ordinary Shares (representing 0.04% per
    cent of the Company's issued share capital) have been retained by Mr
    O'Donoghue.

         Following these transactions, Mr O'Donoghue now holds 1,824,357
    Ordinary Shares representing 0.28% per cent of the Company's issued share
    capital.


 B. 6 April 2006, Patrick Plunkett, non-executive Chairman exercised an option
    granted on 4 September 2000 over 200,000 Ordinary Shares at an exercise
    price of 63p per Ordinary Share and sold these Ordinary Shares at 343.4p.

             Following these transactions, Mr Plunkett continues to hold
        1,229,326 Ordinary Shares representing 0.19 per cent of the Company's
        issued share capital.

The exercise and sale of the above options and Ordinary Shares was executed in
the UK and this notification relates to transactions notified in accordance with
Disclosure Rule 3.1.4R(1)(a) and Disclosure Rule 3.1.4(R)(1)(b) a disclosure
made in accordance with section 324 (as extended by section 328) of the
Companies Act 1985.


Inquiries:

Tom Hickey
Tullow Oil plc
+ 44 208 996 1000
7 April, 2006




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