An Exxon Mobil spokesman said gas flows from the field had been cut by about 50% to 300 mmscf/d during repairs to the condensate pipeline but returned to the normal 600 mmscf/d from Saturday evening.

LNG exports were unaffected by the pipeline leak, the cause of which was still being investigated. "There is no impact on the liquefied natural gas (shipment) schedule," said Deva Rachman.

EMOI is currently the sole natural gas producer in Aceh, with its Arun output largely transported to the country's oldest LNG plant.