The Papua New Guinea liquefied natural gas project co-venturers have signed a first sales agreement for an additional volume of LNG they have been marketing since early 2017.

The deal is with PetroChina for the supply of 450,000 tonnes per annum of LNG over a three-year period.

Co-venturer Oil Search said the deal takes the project's total contracted volumes to 7 million tpa, with 6.6