RE:Director/PDMR Shareholding

Tullow Oil PLC
21 December 2005





NOTIFICATION OF TRANSACTIONS OF DIRECTORS, PERSONS DISCHARGING MANAGERIAL
RESPONSIBILITY OR CONNECTED PERSONS

This form is intended for use by an issuer to make a RIS notification required
by DR 3.1.4R(1).


(1)      An issuer making a notification in respect of a transaction relating to the shares or debentures
         of the issuer should complete boxes 1 to 16, 23 and 24.
(2)      An issuer making a notification in respect of a derivative relating the shares of the issuer
         should complete boxes 1 to 4, 6, 8,13, 14, 16, 23 and 24.
(3)      An issuer making a notification in respect of options granted to a director/person discharging
         managerial responsibilities should complete boxes 1 to 3 and 17 to 24.
(4)      An issuer making a notification in respect of a financial instrument relating to the shares of
         the issuer (other than a debenture) should complete boxes 1 to 4, 6, 8, 9, 11, 13, 14, 16, 23 and
         24.



Please complete all relevant boxes should in block capital letters.



1. Name of the issuer

TULLOW OIL plc

2. State whether the notification relates to (i) a transaction notified in
accordance with DR 3.1.4R(1)(a); or

(ii) DR 3.1.4(R)(1)(b) a disclosure made in accordance with section 324 (as
extended by section 328) of the Companies Act 1985; or

(iii) both (i) and (ii)

(iii) RELATES TO (i) AND (ii)

3. Name of person discharging managerial responsibilities/director

THOMAS HICKEY

4. State whether notification relates to a person connected with a person
discharging managerial responsibilities/director named in 3 and identify the
connected person

N/A

5. Indicate whether the notification is in respect of a holding of the person
referred to in 3 or 4 above or in respect of a non-beneficial interest

IN RESPECT OF PERSON REFERRED TO IN 3 ABOVE

6. Description of shares (including class), debentures or derivatives or
financial instruments relating to shares

ORDINARY SHARES OF 10p

7. Name of registered shareholders(s) and, if more than one, the number of
shares held by each of them

COMPUTERSHARE TRUSTEES (IRELAND) LIMITED

8 State the nature of the transaction

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.

9. Number of shares, debentures or financial instruments relating to shares
acquired

380 (190 PURCHASED PARTNERSHIP SHARES AND 190 FREE MATCHING SHARES)

10. Percentage of issued class acquired (treasury shares of that class should
not be taken into account when calculating percentage)

0.00006%

11. Number of shares, debentures or financial instruments relating to shares
disposed

N/A

12. Percentage of issued class disposed (treasury shares of that class should
not be taken into account when calculating percentage)

N/A

13. Price per share or value of transaction

Euro 3.93

14. Date and place of transaction

20 December 2005: IRISH STOCK EXCHANGE

15. Total holding following notification and total percentage holding following
notification (any treasury shares should not be taken into account when
calculating percentage)

105,020 (0.016%)

16. Date issuer informed of transaction

21 DECEMBER 2005

If a person discharging managerial responsibilities has been granted options by
the issuer complete the following boxes



17 Date of grant



18. Period during which or date on which it can be exercised



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



20. Description of shares or debentures involved (class and number)



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



22. Total number of shares or debentures over which options held following
notification



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 PARTICPANT. PARTNERSHIP
SHARES AND MATCHING SHARES MAY BE SOLD OR TRANSFERRED BEFORE THE 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

0208 996 1109

Name and signature of duly authorised officer of issuer responsible for making
notification

Date of notification

21 DECEMBER 2005









This announcement has been issued through the Companies Announcement Service of

                           The Irish Stock Exchange.










                      This information is provided by RNS
            The company news service from the London Stock Exchange