Tanzania said on Thursday it will launch its fifth oil and gas licensing round in May in which 26 exploration blocks will be put to auction to help draw fresh investment in the east African country’s hydrocarbons sector.

Of the blocks on offer, 23 are offshore in the Indian Ocean while three are also offshore but in Lake Tanganyika, Charles Sangweni, Director General for the country’s Petroleum Upstream Regulatory Authority (PURA) told Reuters.