BG Group has successfully completed a drill-stem test in the Pweza gas field offshore southern Tanzania, concluding an intensive appraisal programme in Block 4. The Pweza field is approximately 70 km off the Tanzania coast in some 1 400 metres of water. The Pweza-3 test, the first done in Block 4, flowed at a maximum 1.6 mcm/d of gas (or 587 mcm/year), constrained by equipment. Importantly, the test demonstrated that development wells could flow at significantly higher rates and that the Pweza reservoir is potentially the most prolific in BG Group’s Tanzania portfolio. This Pweza well test also confirmed the robustness of BG Group’s recently announced total gross resource in Tanzania of some 13 tcf of gas (about 367 bcm). BG Group as operator has a 60% interest in Blocks 1, 3 and 4 offshore Tanzania, with Ophir Energy holding 40%. The partners are now evaluating 3-D seismic survey data to help identify offshore targets for a new exploration programme in 2014.