The appraisal well was drilled in the Pweza gas field, located about 70 kilometres offshore in about 1400 metres of water, by the drillship Deepsea Metro 1.

According to block partner Ophir Energy, Pweza-3 encountered 61 metres of gross pay on prognosis.

A drill stem test was then performed on the well, flowing gas at a maximum constrained rate of 57 million cubic feet per day.

Ophir