Santos has started the Bayu-Undan Phase  3C infill drilling program offshore Timor-Leste. 
The progress marks the first  drilling campaign in Bayu-Undan field as Timor-Leste offshore waters, following  ratification of the Maritime Boundary Treaty (MBT) between Timor-Leste and  Australia, said Autoridade Nacional do Petróleo e Minerais (ANPM) (OGJ  Online, July 30, 2019).
The program comprises three  production wells to develop additional natural gas and liquids reserves,  extending field life and production from the offshore facilities and the Darwin  LNG plant. The infill drilling program will add over 20 million boe gross  reserves.
The wells will be drilled using the  Noble Tom Prosser jack up rig. First production is expected in third-quarter 2021.
Santos is operator at Bayu-Undan (43.4%)  with partners SK E&S Co. Ltd. (25%), INPEX Corp. (11.4%), Eni SPA (11%),  JERA Co. (6.1%), and Tokyo Gas Co. Ltd. (3.1%).