Uganda Well Update

Tullow Oil PLC
13 March 2006

News release



Tullow Oil plc - Uganda: Block 2 Waraga-1 exploration well




13 March 2006 - Hardman Resources, the operator of the Waraga-1 exploration well
in Uganda, in which Tullow Oil Plc (Tullow) is a 50% partner, today issued the
following press release.  Tullow will provide a further update once logging
operations have been completed.

'Since the last report on 7 March, the Waraga-1 well was drilled from 1,872
metres to total depth of 2,010 metres into basement and wireline logs have been
run.  At midnight on 12 March wireline pressure testing and sampling programme
had been completed.  Oil samples have been recovered from the 32 metre gross
interval previously reported (at a depth of approximately 1,700 metres).
Preliminary indications are that this is a light oil of approximately 40o API
gravity.  While no oil water contact was observed, pressure data from the oil
interval and deeper water bearing sands suggests a minimum 45 metre oil column
for this reservoir interval.

Wireline logs and shows while drilling have indicated a deeper, separate zone of
interest from approximately 1,780 metres to 1,930 metres which contains a number
of thinner sands.  Oil samples have been recovered from a sand at 1,893 metres.
Pressure testing and sampling has been conducted, with interpretation of results
expected in the coming days to determine the extent of this deeper oil bearing
interval and whether it represents one or a number of oil columns.

The well will now be cased and suspended ready for future testing.  Planning of
that testing programme is underway and equipment is being sourced and mobilised.

Waraga-1 is located 19 kilometres to the northeast of the recently drilled
Mputa-1 oil discovery well and 41 kilometres southwest of the Butiaba Waki-1
well (drilled in 1938).  Waraga-1 testing a structural prospect with identical
geological targets to the oil bearing reservoirs seen at  Mputa-1.  The Waraga
prospect was defined by the 2005 onshore seismic survey and the geological risk
was significantly reduced by the success of Mputa-1.'

If you have any questions on this announcement please contact:


Tullow Oil plc                     Citigate Dewe Rogerson    Murray Consultants
([phone])                 ([phone])        ([phone])
Aidan Heavey                       Martin Jackson            Joe Murray
Tom Hickey

Chris Perry



Notes to Editors



Tullow is a leading independent oil & gas, exploration and production group,
quoted on the London and Irish Stock Exchanges (symbol: TLW) and is a
constituent of the FTSE 250 Index. The Group has interests in approximately 90
production and exploration licences in 16 countries and focuses on three core
areas: NW Europe, West Africa and South Asia.



Tullow's NW Europe interests are primarily focused on gas in the UK Southern
North Sea where it has significant interests in the Caister-Murdoch System and
the Thames/Hewett areas and operates over 60% of its production.

In Africa, Tullow has production and exploration in Gabon, Cote d'Ivoire, Congo
(Brazzaville) and Equatorial Guinea. Tullow also has exploration programmes in
Morocco, Mauritania, Senegal, Cameroon, Uganda and Angola.

In South Asia, Tullow has production and exploration interests in Pakistan and
exploration activities in India and Bangladesh.

For further information please refer to our website at www.tullowoil.com

                                      ENDS


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