Notification of Interests

Tullow Oil PLC
01 April 2005

                                  SCHEDULE 11

          NOTIFICATION OF INTERESTS OF DIRECTORS AND CONNECTED PERSONS

1. Name of company
Tullow Oil plc

2. Name of director
Graham Martin

3. Please state whether notification indicates that it is in respect of holding
of the shareholder named in 2 above or in respect of a non-beneficial interest
or in the case of an individual holder if it is a holding of that person's
spouse or children under the age of 18 or in respect of a non-beneficial
interest
2.Above

4. Name of the registered holder(s) and, if more than one holder, the number of
shares held by each of them (if notified)
Computershare Trustees Limited

5. Please state whether notification relates to a person(s) connected with the
director named in 2 above and identify the connected person(s)
n/a

6. Please state the nature of the transaction. For PEP transactions please
indicate whether general/single co PEP and if discretionary/non discretionary
Trustee Purchase of securities ('Partnership Shares') and receipt of an award of
free shares ('Matching Shares') under an Inland Revenue approved Share Incentive
Plan at the end of an accumulation period for savings.

7. Number of shares / amount of stock acquired
492 (246 purchased Partnership Shares and 246 free Matching Shares)

8. Percentage of issued class
0.0001%

9. Number of shares/amount of stock disposed
n/a

10. Percentage of issued class
n/a

11. Class of security
Ordinary Shares of 10p

12. Price per share
177.75p

13. Date of transaction
1 April 2005

14. Date company informed
1 April 2005

15. Total holding following this notification
438,845

16. Total percentage holding of issued class following this notification
0.068%

If a director has been granted options by the company please complete the
following boxes.

17. Date of grant
n/a

18. Period during which or date on which exercisable
n/a

19. Total amount paid (if any) for grant of the option
n/a

20. Description of shares or debentures involved: class, number
n/a

21. Exercise price (if fixed at time of grant) or indication that price is to be
fixed at time of exercise
n/a

22. Total number of shares or debentures over which options held following this
notification
n/a

23. Any additional information The Matching Shares must normally be held in
trust for a period of three years after which they may either be left in trust
or withdrawn (and either retained or sold). All or some of the Matching Shares
may be lost on cessation of employment (except in certain compassionate
circumstances) and on disposal within 3 years of acquisition of the
corresponding Partnership Shares

24. Name of contact and telephone number for queries
Richard Taylor 0207 333 6800

25. Name and signature of authorised company official responsible for making
this notification
Richard Taylor

Deputy Secretary

Date of Notification
1 April 2005

The FSA does not give any express or implied warranty as to the accuracy of this
document or material and does not accept any liability for error or omission.
The FSA is not liable for any damages (including, without limitation, damages
for loss of business or loss of profits) arising in contract, tort or otherwise
from the use of or inability to use this document, or any material contained in
it, or from any action or decision taken as a result of using this document or
any such material.





                                  SCHEDULE 11

          NOTIFICATION OF INTERESTS OF DIRECTORS AND CONNECTED PERSONS

1. Name of company
Tullow Oil plc

2. Name of director
Thomas Hickey

3. Please state whether notification indicates that it is in respect of holding
of the shareholder named in 2 above or in respect of a non-beneficial interest
or in the case of an individual holder if it is a holding of that person's
spouse or children under the age of 18 or in respect of a non-beneficial
interest
2.Above

4. Name of the registered holder(s) and, if more than one holder, the number of
shares held by each of them (if notified)
Computershare Trustees (Ireland) Limited

5. Please state whether notification relates to a person(s) connected with the
director named in 2 above and identify the connected person(s)
n/a

6. Please state the nature of the transaction. For PEP transactions please
indicate whether general/single co PEP and if discretionary/non discretionary
Trustee Purchase of Securities (''Partnership Shares'') and receipt of an award
of free shares (''Matching Shares') under a Revenue approved Share Incentive
Plan at the end of an accumulation period for savings.

7. Number of shares / amount of stock acquired
578 (289 purchased Partnership Shares and 289 free Matching Shares)

8. Percentage of issued class
0.0001%

9. Number of shares/amount of stock disposed
n/a

10. Percentage of issued class
n/a

11. Class of security
Ordinary Shares of 10p

12. Price per share
Euro 2.589

13. Date of transaction
1 April 2005

14. Date company informed
1 April 2005

15. Total holding following this notification
103,698

16. Total percentage holding of issued class following this notification
0.016%

If a director has been granted options by the company please complete the
following boxes.

17. Date of grant
n/a

18. Period during which or date on which exercisable
n/a

19. Total amount paid (if any) for grant of the option
n/a

20. Description of shares or debentures involved: class, number
n/a

21. Exercise price (if fixed at time of grant) or indication that price is to be
fixed at time of exercise
n/a

22. Total number of shares or debentures over which options held following this
notification
n/a

23. Any additional information The Partnership and Matching Shares will normally
be held in trust for a period of two years after which the Matching Shares may
be left in trust for a further year when they are automatically transferred to
the participant. Partnership Shares and Matching Shares may be sold or
transferred before expiry of the two year holding period on cessation of
employment in certain compassionate circumstances.

24. Name of contact and telephone number for queries
Richard Taylor 0207 333 6800

25. Name and signature of authorised company official responsible for making
this notification
Richard Taylor

Deputy Secretary

Date of Notification
1 April 2005

The FSA does not give any express or implied warranty as to the accuracy of this
document or material and does not accept any liability for error or omission.
The FSA is not liable for any damages (including, without limitation, damages
for loss of business or loss of profits) arising in contract, tort or otherwise
from the use of or inability to use this document, or any material contained in
it, or from any action or decision taken as a result of using this document or
any such material.


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