Santos Limited (STO) announced that it has completed testing of the Dua-5X well, offshore Vietnam, after discovering multiple gas and oil reservoirs in the southern fault block of the Dua structure. The company reported that the two reservoir intervals have been tested with the primary reservoir target flowing oil at a stable rate of 5,543 barrels of oil per day (bopd) plus 6.76 million standard cubic feet of gas per day through a 2 inch choke. The oil and gas producer said that a deeper secondary reservoir flowed at a rate of 247 bopd through a 28/64” choke. Santos reported that work would now commence on the resource assessment and preparation of a reservoir evaluation report, which is the first step in the commercialization process within the PSC terms.