BG Group has announced an increase in total recoverable resources for the Mzia discovery and across blocks 1, 3 and 4 offshore southern Tanzania, marking the conclusion of a drilling and testing campaign that confirmed the Mzia field as a second giant gas discovery after Jodari, with 4.7tcf of total gross recoverable resources. Total gross recoverable resources across BG’s blocks 1, 3 and 4 are now estimated to be around 15tcf, with further exploration upside, while Statoil estimates 17-20tcf of gas in place in Block 2.