Tullow Oil PLC (TLW) - Twiga South-1 Oil Discovery
RNS Number : 9627R
Tullow Oil PLC
26 November 2012
Twiga South-1 Oil Discovery
26 November 2012 -Tullow Oil plc (Tullow) announces that the Twiga South-1
exploration well in Block 13T, onshore Kenya, has encountered 30 metres of net
oil pay with further potential to be assessed on test and has also encountered
a tight fractured rock section with hydrocarbon shows over a gross interval of
Twiga South-1 has been drilled to a total depth of 3,250 metres and has been
successfully logged and sampled. Three sandstone reservoir zones, analogous to
Ngamia-1, were encountered and moveable oil, with an API greater than 30
degrees, has been recovered to surface. Further potential exists up dip of the
well and will be subsequently appraised.
In addition to the net pay, the well also penetrated a thick section of tight
fractured rock below 2,272 metres which had extensive hydrocarbon shows over a
gross interval of 796 metres. Moveable oil with an API greater than 30 degrees
was also successfully sampled from this section. This tight fractured rock
section is a new play-type for the region that will require further evaluation
to understand its extent and any productive potential.
The Twiga South structure is the second prospect to be tested in the Lokichar
Basin as part of a multi-well drilling campaign in Kenya and Ethiopia and is
the first oil discovery in Block 13T.It is located 22km to the north of the
Ngamia-1A discovery and further de-risks a number of other similar features on
the western margin of the basin.
A series of flow tests will now be conducted on the well over the next 4-8
weeks. Following completion of the testing programme, the rig will move back
to flow test the Ngamia-1 well.
Elsewhere in Tullow's East African Rift basin acreage, a result from the
Paipai-1 well in Block 10A in Kenya is expected by the end of the year and the
Sabisa-1 well in the South Omo Block in Ethiopia is expected to commence
drilling by the end of December.
Tullow has a 50% operated interest in the Twiga South-1 well with Africa Oil
holding the remaining 50% interest.
Angus McCoss, Exploration Director, commented,
"Following the basin-opening Ngamia-1 well result earlier this year, I am
pleased to announce that our second well in our onshore Kenya rift basins
campaign has also discovered oil. This immediate follow on discovery reaffirms
the considerable prospectivity of the Lokichar Basin. Having significantly
expanded our plans in Kenya and Ethiopia, there is much to look forward to as
the exploration campaign and testing programme move ahead."
FOR FURTHER INFORMATION CONTACT:
Tullow Oil plc Citigate Dewe Rogerson Murray Consultants
(+44 20 3249 9000) (+44 207 638 9571) (+353 1 498 0300)
Martin Jackson Joe Murray
Chris Perry - Investor Relations
Jack Rich Ed Micheau
James Arnold - Investor Relations
George Cazenove - Media Relations
Notes to Editors
Tullow is a leading independent oil & gas, exploration and production group,
quoted on the London, Irish and Ghanaian (symbol: TLW) stock exchanges and is
a constituent of the FTSE 100 Index. The Group has interests in over 100
exploration and production licences across 24 countries and focuses on four
core areas: Africa, Europe, South Asia and South America.
For further information please refer to our website at www.tullowoil.com.
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This information is provided by RNS
The company news service from the London Stock Exchange
DRLUNSVRUAAAURA -0- Nov/26/2012 07:00 GMT
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