Statoil and ExxonMobil announced their third high impact discovery in Block 2 offshore Tanzania in a year. The discovery of 4-6 TCF of natural gas in place in the Tangawizi-1 well brings the total in-place volumes up to 15-17 TCF. The success in Block 2 is the result of an ambitious and successful drilling campaign. Statoil have so far completed five wells within 15 months and will continue with further wells later this year. The Tangawizi-1 discovery was made in sandstone of tertiary age. The new discovery is located 10 kilometres from the Zafarani and Lavani discoveries. It is located in water depth of 2,300 metres and was drilled by the Ocean Rig Poseidon drilling rig. Statoil and ExxonMobil are also working to mature additional prospects in Block 2 and have recently acquired 3D seismic data in areas of Block 2 so far covered only by 2D seismic.