20th Dec 2007 07:01
Tullow Oil PLC20 December 2007 News release Mputa-4 Extended Well Test Completed 20 December 2007 - Tullow Oil plc (Tullow) announces that Mputa-4 well testoperations have been completed and the data taken from the well will now beintegrated with the Kaiso-Tonya appraisal programme well data and the recentlyacquired 3D seismic. Mputa-4 was production tested from a 5m interval at 944m for an extended flowperiod of three days from 21 to 24 November 2007. The well tested at rates of950 to 1,100 bbls/day on a small 1/2" choke and the oil produced was a 31 degreeAPI waxy sweet crude consistent with that encountered elsewhere in theKaiso-Tonya Area. The well was then shut-in for an extended 16-day pressurebuild-up period with downhole reservoir pressure gauges installed. The objective of the test was to enhance the understanding of the lateralconnectivity and geometry of the sandstone reservoir by analysing production andpressure trends. The pressure data indicated some depletion over the test periodand this data will now be integrated into the subsurface evaluation along withan updated 3D seismic geological model to refine reserve estimates anddevelopment planning assumptions ahead of the anticipated sanction of the EarlyProduction System in late Q1 2008. For further information contact:Tullow Oil plc Citigate Dewe Rogerson Murray Consultants(+44 20 8996 1000) (+44 20 7638 9571) (+353 1 498 0300) Martin Jackson Joe MurrayTom Hickey George CazenoveChris 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 aconstituent of the FTSE 100 Index. The Group has interests in over 110exploration and production licences across 22 countries and focuses on four coreareas: Europe, Africa, South Asia and South America. Tullow's European interests are primarily focused on gas in the UK SouthernNorth Sea where it has significant interests in the Caister-Murdoch System andthe Thames-Hewett areas and operates over 70% of its production. In Africa, Tullow has exploration and production in Gabon, Cote d'Ivoire, Congo(Brazzaville), Mauritania and Equatorial Guinea and a gas field development inNamibia. Tullow also has exploration programmes in Mauritania, Senegal, Uganda,Congo (DRC), Tanzania, Madagascar, Angola and Ghana. In South Asia, Tullow has exploration and production in Pakistan and Bangladeshand high impact exploration activities in India. In South America Tullow has high impact exploration interests in Trinidad andTobago, French Guiana and Suriname. For further information please refer to our website at www.tullowoil.com ENDS This information is provided by RNS The company news service from the London Stock ExchangeRelated Shares:
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