The ExxonMobil-led joint venture that owns the Papua New Guinea LNG project has sanctioned a US$1 billion investment in a new upstream field development.

Project partner Santos said in its latest quarterly report that the PNG LNG project participants had taken a final investment decision on the Angore development project during the past quarter.

Associated project activity began in late July, and Santos said the development represents “the next tranche of gas backfill to maintain plateau production”.