Oil & Gas BG’s Tanzania test excellentBG's drill-stem test of its Jodari gas discovery on block 1 offshore Tanzania has confirmed the "excellent" quality of the Tertiary reservoir. March 31st 2013, 11:45 pm 1 min read Facebook An icon of a facebook f logo. LinkedIn An icon of the LinkedIn logo. Twitter An icon of the Twitter logo. BG's drill-stem test of its Jodari gas discovery on block 1 offshore Tanzania has confirmed the "excellent" quality of the Tertiary reservoir.