UK player BG Group has been given the go-ahead to farm in to blocks 1, 3 and 4 off southern Tanzania.
The blocks are currently solely by Ophir Energy.
Once completed, BG Group will take 60% of Ophir’s stakes in each of the offshore blocks by contributing 85% towards costs which include an initial work programme.
Blocks 1, 3 and 4 cover more than 27 000 square kilometres of the Mafia Deep Offshore basin and the northern portion of the Ruvuma basin, with water depths ranging from around 100 metres to more than 3000 metres.
Completion of the farm-in agreements is expected next month.